UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 10-K
(Mark One)

[X]     ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE
        ACT OF 1934

                    For the fiscal year ended September 30, 1996

                                       or

[ ]     TRANSITION  REPORT PURSUANT  TO  SECTION 13 OR 15(d)  OF THE  SECURITIES
        EXCHANGE ACT OF 1934

        For the transition period from ___________to _________

Commission file number 2-93826-W

                            CHEUNG LABORATORIES, INC.
             (Exact name of registrant as specified in its charter)

            Maryland                                   52-1256615
   State or other jurisdiction of         (I.R.S. Employer Identification No.)
   incorporation or organization

          10220-I Old Columbia Road
             Columbia, Maryland                        21046-1705
  (Address of principal executive offices)              (Zip Code)

Registrant's telephone number, including area code (410) 290-5390
Securities registered pursuant to Section 12(b) of the Act: None
Securities registered pursuant to Section 12(g) of the Act: 
  Common Stock, par value $.01 per share
  --------------------------------------
            (Title of Class)

         Indicate by check mark whether the Registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the  Securities  Exchange  Act of
1934  during  the  preceding  12 months  (or for such  shorter  period  that the
Registrant was required to file such reports),  and (2) has been subject to such
filing requirements for the past 90 days. Yes X No

         Indicate by check mark if disclosure of delinquent  filers  pursuant to
Item 405 of  Regulation  S-K (ss.  229.405  of this  chapter)  is not  contained
herein,  and will not be contained,  to the best of Registrant's  knowledge,  in
definitive proxy or information statements incorporated by reference in Part III
of this Form 10-K or any amendment to this Form 10-K. [ ]

         As of November 22, 1996,  25,206,360 shares of the Registrant's  Common
Stock were issued and outstanding. As of November 22, 1996, the aggregate market
value of voting stock held by nonaffiliates of the Registrant was  approximately
$7,977,252  based on the  average of the  closing  bid and asked  prices for the
Registrant's Common Stock as quoted NASD OTC Bulletin Board.

                       DOCUMENTS INCORPORATED BY REFERENCE

       Portions of the following documents are incorporated by reference in this
 Report on Form 10-K: None.







                                     PART I

ITEM 1.  BUSINESS

The Company

Overview

         Cheung Laboratories,  Inc. ("CLI" or the "Company") was incorporated in
the State of Maryland in 1982 under the name A.Y.  Cheung  Associates,  Inc. The
Company changed its name to Cheung  Laboratories,  Inc. on June 31, 1984. CLI is
engaged in  developing  and marketing  minimally  invasive  medical  devices and
systems   utilized  in  the   treatment  of  cancer  and  in  the  treatment  of
genitourinary  diseases  associated  with benign growth of the prostate in older
males, the most common being benign prostatic  hyperplasia  ("BPH"). The Company
has recently  acquired the right to use technologies  which the Company believes
have the potential to significantly  enhance the capabilities of both its cancer
and BPH treatment systems.

         The Company's  current cancer  treatment system is the Microfocus 1000,
which is  designed  to  increase  the  efficacy  of  existing  cancer  treatment
modalities,   including   external  beam  radiation,   interstitial   radiation,
brachytherapy  and  chemotherapy.   The  Microfocus  1000  utilizes  proprietary
microwave  technology to preferentially heat the cancerous area to a temperature
sufficient to cause cell death in the cancerous cells. Because healthy cells are
not  as  susceptible  to  heat  as  cancerous   cells,   they  can  survive  the
thermotherapy. The treatment is currently utilized primarily on surface cancers.
The Microfocus 1000 also utilizes licensed patented technology which the Company
calls Direct Coupling Technology ("DCT").  The DCT allows the Microfocus 1000 to
air cool the body surface while applying the heat. The Microfocus  1000 has Food
and Drug  Administration  ("FDA")  premarket   approval   ("PMA")  and  has been
marketed by the Company since 1989.

         The Company recently acquired an exclusive license to use three patents
involving  a  technology  known  as  Adaptive  Phased  Array  ("APA")  from  the
Massachusetts  Institute of Technology  ("MIT").  APA  technology was originally
developed for use in microwave radar systems for the U.S.  Department of Defense
to track  targets and to nullify the energy beam from enemy  jamming  equipment.
The  Company is  incorporating  the APA  technology  into a device  based on the
current Microfocus 1000 which is currently designated as the Microfocus APA (the
"Microfocus  APA").  Based upon  information  currently  available,  the Company
believes the Microfocus APA will allow focusing  microwave heat on target tumors
inside the body and will nullify  undesired heat induced in healthy tissue.  The
current thermotherapy systems, including the Microfocus 1000, are useful only on
superficial cancers. The Microfocus APA will allow thermotherapy treatment to be
administered to malignant tumors deep within the body such as lung,  pancreatic,
breast and prostate  cancer.  It will be minimally  invasive in that one or more
thin  catheters  will  be  inserted  into  the  tumor  and  surrounding  area to
facilitate the placement of sensors and a temperature  probe. The sensor acts as
a  guidance  center  which  generates  feedback  signals  to the  system to make
adjustment  in order to  maintain  the focus of heat  within the tumor even if a
patient  moves his or her  position.  The  temperature  probe  maintains  proper
temperature  within  the tumor and  surrounding  areas.  The  Company  is in the
engineering stage to develop the commercial  applications of the APA technology.
The Company is required to seek an investigational device exemption ("IDE") from
the FDA to begin patient  studies in the United  States.  Data from such studies
will used to seek PMA which must be received prior to commercial distribution of
the Microfocus APA in the United States.

     The Company's BPH systems  currently include the Microfocus 800, 500C, 100C
and 100 (collectively  "Microfocus System") which are all designed to treat BPH.
The Microfocus 800 is the most current design and is targeted for use by private

                                       2



urologists   in  their   offices.   The   procedure   utilizes  a   non-surgical
catheter-based therapy that incorporates proprietary microwave technology and is
designed to preferentially  heat diseased areas of the prostate to a temperature
sufficient to cause cell death in those areas.  The Company does not have an IDE
or PMA on the Microfocus System and it is therefore not currently  available for
commercial   distribution  in  the  United  States.  The  Microfocus  System  is
manufactured in Canada and is approved for export from Canada.

         The  Microfocus  System  is  a  thermotherapy   system  which  utilizes
transurethral  and transrectal  applicators to deliver heat directly to diseased
portions of the  prostate.  CLI has  conducted  preclinical  evaluations  on its
Microfocus   System  and  is  now  waiting  for  protocol   from  its  principal
investigator  to  obtain  data  for the  filing  of an IDE with the FDA to allow
restricted sales of systems to hospitals in the United States. This procedure is
required to place the  Microfocus  System in hospitals  within the United States
and  gather  clinical  data  for  safety  and  efficacy   demonstrations.   Such
demonstrations are necessary to obtain a PMA from the FDA for  commercialization
in the United  States.  The  Microfocus  System is currently sold outside of the
United States.

         The  Company has  recently  acquired  by license  patented  compression
technology from MMTC, Inc. ("MMTC") which is being incorporated into a device to
be utilized with the catheter used in the Microfocus System. The device consists
of a  microwave  antenna  combined  with a balloon  mechanism  which  expands to
compress the walls of the urethra as the  prostate is heated.  The Company is in
the engineering stage to develop a commercial application of the technology. The
device will require the Company to seek an IDE and PMA from the FDA prior to any
commercial sales of the device in the United States.

         The  Company's  objective  is to  establish  itself  as a leader in the
design,  development,  and marketing of clinically effective  minimally-invasive
thermotherapy   solutions  for  the  treatment  of  cancer  and  for  urological
disorders.  To date, the Company has focused on marketing  current products and,
other than for the Microfocus 1000, has not had the capital to seek governmental
approvals and complete  commercialization of its technology.  The focus will now
be expanded to  integrate  new  technology  recently  acquired by the Company to
significantly  expand the  capabilities and market for its products and increase
efforts for FDA approval of all products.  Key elements to achieve the broadened
strategy are to (i) develop products for the oncology market,  (ii) focus on the
large and growing  urology  market,  (iii) develop new marketing  strategies and
relationships  based upon selling services and sharing treatment  revenue,  (iv)
establish  strategic  partnerships,  (v) maintain  technological  leadership and
protect  technology  advantages  through patents and (vi) seek early  regulatory
approvals in target markets.

Targeted Illnesses

         The Company's  products and potential products seek to treat cancer and
BPH.

a.  Cancer.  Historically,  cancer has been  treated by  surgical  intervention,
chemotherapy or radiation therapy.  The Company's equipment for the treatment of
cancer is based upon a microwave thermotherapy system. Thermotherapy (also known
as hyperthermia), or heat therapy, has been used in medicine since antiquity. In
modern  thermotherapy,  a controlled  heat dose is targeted to  treatment  sites
using microwave and/or other energy for therapeutic  benefits.  Thermotherapy is
effective in treating  malignant tumors because these tumors cannot  effectively
withstand  the  increased   temperatures  brought  about  by  the  thermotherapy
treatment,  while normal tissue can withstand the higher  temperatures.  Because
cancerous tissue has poor blood  circulation,  its capacity to dissipate heat is

                                       3




less than that of normal  tissue.  As an adjuvant to surgery,  thermotherapy  is
used to decrease tumor mass and thereby facilitate its removal surgically. As an
adjuvant to radiation  therapy,  thermotherapy has been shown to be particularly
effective  in  killing   cells  which  are   resistant  to  radiation   therapy.
Thermotherapy  has also been shown to enhance the effectiveness of certain forms
of  chemotherapy  by  killing  cells  in  areas  poorly  served  by the  tumor's
circulatory  system.  In the case of both  radiation  therapy and  chemotherapy,
thermotherapy  may, in time, permit lower dosages and,  therefore,  reduced side
effects.

         Thermotherapy  can be administered to various  anatomical sites through
local, regional or whole body administration.  Local thermotherapy treatment may
be invasive (internal) or non-invasive (external).  Invasive heating techniques,
in turn, may be  interstitial  (via implants into body tissue) or  intracavitary
(via natural  bodily  orifice).  Regional  thermotherapy  treatment is primarily
non-invasive,  via external beam radiation.  Whole body  thermotherapy  has been
effectively  employed as an adjuvant to chemotherapy,  but only by practitioners
skilled  in the  complex  techniques  which  minimize  the side  affects  of the
procedure.

         Thermotherapy  has  been  the  subject  of  medical  investigation  and
commercial interest in the United States, Canada, Europe, and Asia for almost 25
years.  Because  of a  well-documented  biological  rationale  for  the  use  of
thermotherapy as a tumor-shrinking  agent, it was originally  greeted with great
optimism by  oncologists.  This optimism was founded on many  published  reports
that  thermotherapy  enhanced the  effectiveness  of radiation by killing  cells
exponentially  as a function of  temperature  at  temperatures  greater  than 42
degrees  celsius  maintained for certain  minimal time periods,  and selectively
killing  S-phase and other  radiation-resistant  cells.  Thermotherapy  was also
found to enhance the effectiveness of chemotherapeutic  agents through a variety
of  mechanisms   including  increase  in  drug  uptake,   inhibition  of  repair
mechanisms, and temperature-dependent increases in drug activity.

         The results of early  clinical  trials in the United  States,  however,
have been  disappointing  due to the lack of  effective  equipment.  Most of the
equipment  used in the past to heat the tumors  was  crudely  designed.  In many
instances, the equipment was thought to be able to heat large deep-seated tumors
when only small superficial tumors could in fact be heated.

         Due to the initial hope  associated  with the use of  thermotherapy  to
treat cancer, many companies attempted to develop thermotherapy  systems.  Early
developers of thermotherapy  equipment conducted phase III randomized studies in
the United States.  These trials became known as the Radiation  Therapy Oncology
Group 81-04 study (the "RTOG Study"). The results of the RTOG Study published in
1989  showed  no clear  treatment  benefits  when  combining  thermotherapy  and
radiation  therapy as  compared  to the  radiation  therapy  alone.  These study
results  had a negative  effect on  thermotherapy  use and  research.  Until the
recent   publication  of  numerous   European   clinical  trials  reporting  the
effectiveness of the thermotherapy as an adjuvant therapy to radiation, the RTOG
Study  proved to be a difficult  barrier to companies  attempting  to win market
acceptance for their FDA- approved thermotherapy  devices.  Despite the negative
RTOG  Study,  thermotherapy  is  currently  used on a limited  basis at oncology
centers in the United States, primarily for the treatment of superficial cancer.

         In contrast to the use of thermotherapy  in the United States,  the use
of  thermotherapy  in Europe and Asia is more widespread both  commercially  and
clinically. Since 1993, numerous randomized clinical trials have reported that:


                                        4





         o        thermotherapy  combined with  radiation  therapy  doubles  the
                  tumor  complete  response compared to radiation therapy alone;
                  and

         o        thermotherapy  combined  with  chemotherapy  doubles the tumor
                  complete response compared with chemotherapy alone.

Unlike  radiation  therapy or  chemotherapy,  which are highly  toxic  treatment
modalities,   thermotherapy   is   relatively   innocuous.   For  this   reason,
thermoenhanced combination therapies are associated with little or no additional
patient morbidity or side effects.  Nevertheless, the fundamental shortcoming of
existing  thermotherapy  equipment  is the same  everywhere:  the  inability  to
achieve  focused  heating of deep tumors while sparing  adjacent and intervening
normal tissue and skin.  Despite 25 years of effort by engineers and clinicians,
the problem of targeting the cancerous tumor with the  therapeutic  agent (heat)
has  not  advanced  far  beyond  what  was  possible  at  the  beginning  of the
thermotherapy  "era." For this reason, the Company believes that the combination
of the  thermotherapy  treatment and the APA focusing  technology for heating of
deep tumors  constitutes a significant  advance in the use of thermotherapy as a
cancer treatment.

b. Benign Prostatic  Hyperplasia.  BPH is a non-cancerous  urological disease in
which the prostate enlarges and constricts the urethra. Symptoms associated with
BPH affect the quality of life of millions of  sufferers  worldwide  and BPH can
lead to  irreversible  bladder or kidney  damage.  The prostate is a walnut-size
gland  surrounding the male urethra that produces  seminal fluid and plays a key
role in sperm  preservation  and  transportation.  As the prostate  expands,  it
compresses or constricts the urethra,  thereby restricting the normal passage of
urine.  This restriction of the urethra may require a patient to exert excessive
bladder  pressure to urinate.  Since the urination  process is one of the body's
primary  means of cleansing  impurities,  the  inability  to urinate  adequately
increases the possibility of infection and bladder and kidney damage.

         Because BPH is an age-related disorder,  its incidence increases as the
population  ages.  As many as 27 million men between the age of 50 and 80 in the
United  States  alone suffer from BPH. As the  population  continues to age, the
number will continue to increase dramatically. Current estimates are that by the
age of 55, fifty percent of all men, and by 80,  eighty  percent of all men will
have BPH.

         Like cancer, BPH historically has been treated by surgical intervention
or by drug therapy. As BPH progresses,  the urethra passing through the prostate
constricts making urination difficult. The primary surgical treatment for BPH is
transurethral  resection  of the  prostate  ("TURP"),  a procedure  in which the
prostatic  urethra and surrounding  diseased tissue in the prostate are trimmed,
thereby  widening the urethral  channel for urine flow. While the TURP procedure
typically  has been  considered  the most  effective  treatment  available,  the
procedure has many shortcomings  which undermine its value. A significant number
of  patients  who  undergo  TURP  encounter  significant  complications.   These
complications can include painful urination, infection, impotence,  incontinence
and excessive bleeding. Furthermore, the cost of the TURP procedure is also very
high,  ranging from $8,000 to $12,000.  Medicare alone spent $1 billion to cover
TURP procedures last year. This high cost also fails to reflect the cost of lost
work time and reduction in quality of life. Finally,  the TURP procedure is time
consuming, requiring hospitalization for up to three days.

         Other less radical surgical procedures are available in addition to the
TURP procedure.  Interstitial RF Therapy and Laser Therapies employ concentrated
radiofrequency  waves or laser radiation  instead of a surgical knife.  There is
minimal  bleeding and damage to the urethra  associated  with these  procedures.
However, the side effects and costs associated with surgery still remain.
 
                                        5





         Drug  therapy  has  emerged  as an  alternative  to surgery in the last
several years. There are several drugs available for BPH treatment, the two most
widely  prescribed  drugs being  Hytrin and  Proscar.  Hytrin  works by relaxing
certain involuntary muscles surrounding the urethra, thereby easing urinary flow
and Proscar is intended to actually shrink the enlarged gland.  Drugs,  however,
offer only  modest  relief and cost  hundreds  of  dollars  per year.  In short,
neither the  surgical nor the  medicinal  treatments  available  for BPH provide
satisfactory, cost-effective solutions to BPH.

         With the limited  effectiveness of BPH drugs and the cost and potential
side  effects  associated  with  surgery,  the  Company  believes  thermotherapy
provides a better  alternative  for the  treatment of BPH.  The Company  further
believes the  percentage of men with moderate to severe  symptoms of the disease
who seek treatment will increase in the future as a result of increased consumer
knowledge  of the disease and the  development  of  treatments  with less severe
complications and side effects than traditional treatments.

Cheung Laboratories Approach.

         Cancer Treatment.  The Company has received PMA from FDA for the use of
the  Microfocus  1000 as an  adjuvant  to  radiation  therapy  for  surface  and
subsurface  cancer. The Company's clinical studies submitted to the FDA indicate
a better than 86% positive  response  rate which is the best among all competing
systems.  However,  the  Microfocus  1000 still suffers from the  limitations of
inability  to focus deep and surface  hot spots at  undesirable  locations.  The
Company   intends  to  utilize  the  licensed  APA  technology  to  improve  the
performance  of the  Microfocus  1000.  With added  hardware and  software,  the
Company  is in the  development  stage  of a  thermotherapy  system  capable  of
focusing  accurately  and  delivering  repeatable  microwave  energy  to  induce
hyperthermia  without undesirable hot spots within surface and subsurface tumors
such as breast  tumors.  With  additional  antenna and  geometric  configuration
design, and frequency  modification,  the Company hopes to develop thermotherapy
systems for deep  seated  tumors  such as those  located in the lung,  prostate,
rectum,  liver and pancreas.  The Company now possesses the technology  which it
believes  will lead to the  capability  to develop  and  commercialize  the next
generation  of  thermotherapy  equipment  which is  capable  of  overcoming  the
previous  limitations  of  current  thermotherapy  systems,  thus  allowing  the
realization of minimally  invasive,  non-toxic and side effect free treatment to
cancer.

         BPH Treatment.  The Microfocus patented technology further enhances the
therapeutic  capabilities  of the  treatment  by providing  combined  therapy of
compression  and heat.  Preclinical  studies  in  phantoms  and  animal  tissues
indicate the technology will not only provide long term clinical  benefits as in
the case of other BPH systems but also  immediate  symptomatic  relief  which is
also necessary for most BPH patients.

Business Strategy

         The Company's mission is to develop effective and  clinically-practical
means of applying heat for therapeutic purposes. The Company's initial objective
will be the design,  development and marketing of microwave-based treatments for
urological disorders,  cancer and other diseases. The Company believes its depth
of  experience  and  its  relationship  with  third  parties  in  technological,
manufacturing and marketing matters position the Company to exploit this market.
To meet this  objective,  the Company has identified the following  actions upon
which the Company will focus its efforts:


                                        6





         Enhancement of Benign Prostatic Treatments.

         The technology licensed from MMTC allows the design of a catheter which
combines  tissue  compression  with  thermotherapy  for  BPH  treatment.  Such a
combination  therapy is believed  to be  synergistically  beneficial  clinically
since   compression  may  provide   immediate  urine   obstruction   relief  and
thermotherapy produces long term symptom relief control resulting from shrinkage
of the benign growth.  With this new  technology,  the Company  believes that it
will be able to offer a new BPH treatment system superior to other  commercially
available BPH thermotherapy devices.

         Development of Specific Cancer Treatments.

         The Microfocus APA is in the design stage and will be a patented breast
cancer  thermotherapy  system for the  purpose of heating  both  primary  ductal
tumors in  compressed  breast  tissue as well as recurrent  breast cancer (chest
wall)  tumors.   The  compressed  breast  tissue  geometry  is  desirable  in  a
thermotherapy treatment for four primary reasons:

         o        compressing  the  breast  tissue  to  the  range  of  6  to  8
                  centimeters requires less penetration for microwaves;

         o        breast  compression  to  a  flat  geometry  allows  a   single
                  applicator design to treat a wide range of breast sizes;

         o        standard x-ray imaging techniques  can be used with the breast
                  compression to accurately locate the tumor; and

         o        patient motion  effects which could  degrade the thermotherapy
                  treatment are minimized.

         The amount of breast  compression can be varied to accommodate  patient
tolerance.   When  completed,   the  Company   anticipates   that  the  standard
breast-compression thermotherapy system will feature a phased array system using
dual-opposed  applicators.  If marketing  studies  determine that compression is
undesirable,  the Company can design a somewhat more costly  four-channel phased
array  system that will  deliver  deep  thermotherapy  using an adaptive  breast
cradle to immobilize but not compress the breast.

         The  Microfocus  APA will later be modified to  incorporate  additional
patented  technology  licensed  from  MIT.  This  additional  technology  allows
deep-heating  thermotherapy.  A prototype  of this  system  involving a monopole
annular phased array which would surround the patient is presently planned.  The
adaptive  phased array will be used to treat  deep-seated  tumors in organs like
prostate,  liver,  pancreas,  rectum, and cervix.  Rings of different sizes will
permit thermotherapy for other cancer sites such as the head, neck and limbs.

         In addition,  the APA technology  will also allow the development of an
externally focused minimally invasive treatment system for prostate cancer.

         Develop Technological Partnerships.

         In addition to collaboration  with MIT and MMTC, the Company is working
with,  or   anticipates   working  with  various   international   and  domestic
institutions  to  assist  in the  development  and  testing  of  new  Microfocus
products. There is no assurance that such partnerships will develop.

                                        7





         Marketing.

         The Company  intends to create a marketing and sales  strategy to allow
it to become  the  market  leader in the  business  of  microwave  thermotherapy
systems for treatment of cancer,  BPH and other diseases.  The Company will seek
to establish itself as the technology leader in the  thermotherapy  business and
form  strategic  marketing  alliances  with  other  partners  to  implement  its
marketing and sales plan worldwide.

         The Company believes its licensed proprietary technology will allow the
instrumentation  of a new  line of  thermotherapy  systems  which  will  provide
significant benefits over existing products.  The Company has retained a product
design firm in Chicago to coordinate the  engineering of initial  prototypes and
manufacturing of the final products. Working closely with clinicians, scientists
and the Company,  the product  designers will construct  working  prototypes for
clinical  trials.  The Company  anticipates  that such prototypes will result in
enhanced thermotherapy systems for manufacturing and marketing.

         The Company further believes that with its licensed  technologies,  the
Company can develop clinical thermotherapy treatment systems capable of offering
minimally-invasive,  effective  non-toxic and side effect free  treatment  which
targets  only the  tumors  in  patients  suffering  from  cancer,  BPH and other
diseases.  The Company is formulating a sale and distribution  strategy based on
placements  of systems in hospitals  and clinics in order to derive  profit from
sharing of patient treatment revenue.

         In the cancer treatment  market,  the Company is developing the concept
of thermoenhanced  combination  treatment procedures which combine thermotherapy
with radiation therapy and/or chemotherapy.  Thermotherapy  treatment is used to
improve the  efficacy  of these  existing  treatments  while  decreasing  system
toxicity. The Company plans to place Microfocus 1000 systems, and when available
Microfocus  APA systems,  in treatment  centers at nominal  costs to the centers
themselves and to share in treatment revenue.

         The Company intends to re-engineer its Microfocus System to include the
MMTC  technology,  to  create a second  generation,  versatile  and low cost BPH
treatment  system  with  the  added   capability  of  balloon   compression  and
minimally-invasive temperature sensing. With these new technologies, the Company
believes it can obtain  governmental  approval which will allow it to compete in
the new BPH treatment  market recently created as a result of the FDA's approval
of the first  microwave BPH treatment  device,  as well as the growing market of
prostate  cancer  treatment.  The Company  plans to market its lines of prostate
treatment   systems  by  forming   individual   joint   ventures   with  private
entrepreneurs and urologists to operate prostate treatment clinics.  The Company
intends to derive most of its revenue from sharing treatment revenue rather than
from the initial sale of the systems.

Cheung Laboratories Product Description and Technology.

         Cancer Treatment.

         Microfocus 1000

         The  Company's   Microfocus  1000  is  manufactured  at  the  Company's
headquarters  from  various  components  provided  by  suppliers.  Some  of  the
components are modified by the Company or by the  manufacturer  at the Company's
direction.  The Company considers there to be proprietary trade secret knowledge
involved in the manufacture of some of the components of the Microfocus 1000 and

                                        8




in the assembly of the components to form the  Microfocus  1000. The Company has
taken  what  it  considers  appropriate  steps  to  safeguard  this  proprietary
information.  Other than its rights to use patents  under  license,  the Company
does not have patents on any of the components of the Microfocus  1000 or on the
complete Microfocus 1000.

         Competitors of the Company,  particularly  BSD Medical  Corporation and
Labthermics   Technologies,   Inc.,   have  obtained  a  number  of  patents  on
thermotherapy  products.  The Company does not believe that the Microfocus  1000
infringes on any valid patents granted to others.

         The Company expects to rely upon trade secrets,  unpatented proprietary
know-how and technological innovation in maintaining the competitive position of
its Microfocus 1000. The Company intends to apply for patent  protection for any
patentable product it may develop. The Company believes it possesses significant
proprietary knowledge relating to its hardware and software that are utilized in
connection  with the Microfocus  1000.  However,  there can be no assurance that
competitors may not independently develop similar technology or that the Company
will be able to maintain the secrecy of its proprietary  information.  There can
also be no assurance that competitors will not claim that the Microfocus 1000 or
another Company  product  infringes on a patent held by such  competitor.  If an
owner of a patent were to assert an  infringement  of its patent(s)  against the
Company, and the Company were ultimately determined to be infringing a valid and
enforceable patent, and if a license could not be obtained on a reasonable basis
from such patent owner or such products could not be re-designed so that they no
longer infringed the other  patent(s),  there could be a material adverse effect
on the Company's business.

         The  Microfocus  1000 has FDA premarket  approval and has been marketed
since 1989. For the year ended September 30, 1996, the Company sold 0 Microfocus
1000 systems.  Since  obtaining the PMA, the Company has sold over 35 Microfocus
1000 systems worldwide.

         Prostatic Treatment.

         BPH Systems

         CLI  designed  the   Microfocus   System  for  the   treatment  of  BPH
("Microfocus  Systems").  The four  versions  of the  Microfocus  System are the
Microfocus  Models 800, 500C,  100C and 100. The Microfocus  System is presently
being  manufactured via a joint venture in Canada and sold in Europe and the Far
East. For the year ended September 30, 1996 the Company sold four (4) Microfocus
Systems,  with sales from  inception  of the Company to date  totalling  over 75
Microfocus Systems.

         CLI is conducting preclinical  evaluations on its BPH systems to obtain
data for the filing of an IDE (Investigational Device Exemption) with the FDA to
allow  restricted  sales of  systems to  hospitals  in the USA.  The  Company is
recently received the protocol from its principal  investigator which will allow
the Company to proceed with its FDA approval efforts. This procedure is required
to place the BPH system in United States  hospitals and gather clinical data for
safety and efficacy demonstrations.  Such demonstrations are necessary to obtain
a PMA from the FDA for commercialization in the United States.

Patents and Proprietary Rights

     The Company owns no patents.  The Company has under license one U.S. patent
on the Microfocus  1000,  three U.S.  patents on the  technology  underlying the
Microfocus APA and one U.S. patent on the technology underlying the improved BPH

                                       9




treatment  system.  The United  States  patents  licensed to the  Company  claim
methods and devices  which the Company  believes are critical to providing  safe
and efficacious  treatment for cancer and BPH. One of the MIT patents as well as
the BPH patent also have or will have patent  protection  in a number of foreign
jurisdictions, including Canada and selected European nations.

         The  patents  and the  rights  under  which  they are  asserted  are as
follows:

         1. DCT Technology. The Company received an exclusive license to the use
of the DCT technology from Haim Bither Cancer  Institute  ("H.B.C.I.").  The DCT
technology  allows  the  Company  to  air  cool  the  area  being  treated  with
microwaves.  The Company has no further  obligations to maintain or preserve its
rights to use this patent. The Patent expires on May 31, 1999.

         2. APA Technology.  On June 12, 1996, the Company entered into a Patent
License Agreement with the Massachusetts  Institute of Technology  ("MIT").  The
terms of the  license  agreement  have  since  been  modified.  Pursuant  to the
license,  the Company has the exclusive  right to use the  technology in breast,
head and neck and deep seated  thermotherapy  of other organs.  Assuming certain
milestone criteria are met, the license will not expire until 10 years after the
first  annual sale or use of the  licensed  technology  or June 1, 2008,  unless
further  extended.  The  Company  is  obligated  to pay a  royalty  to MIT based
principally upon treatment revenue.

     3. BPH  Balloon  Therapy.  On August 23, 1996 the  Company  entered  into a
License Agreement with MMTC, Inc. ("MMTC"). Pursuant to the license, the Company
has the exclusive  worldwide  license to use microwave  balloon  catheters.  The
license is perpetual  unless certain  events of default  occur.  The Company has
paid and is obligated to pay  royalties and  licensing  fees.  Failure to comply
with the payment obligations will allow MMTC to cancel the license.

         There can be no assurance,  however,  that the patents  being  licensed
will offer any degree of protection from competitors.  There can be no assurance
that  any of the  licensed  patents  or  applications  will  not be  challenged,
invalidated  or  circumvented  in  the  future.  In  addition,  there  can be no
assurance that  competitors,  many of which have substantial  resources and have
made substantial investments in competing  technologies,  will not seek to apply
for and obtain patents that will prevent,  limit or interfere with the Company's
ability to make, use or sell products utilizing the patented technologies in the
United States or in international markets.

         Other  companies  have  developed  or are in the process of  developing
medical  methods  and  devices to treat BPH and cancer  with  microwave  energy.
Several companies have applied for, and in some cases received,  patents related
to such medical methods and devices. The Company has not received any notices of
infringement from any other company.

         The Company  also relies on trade  secrets  and  proprietary  know-how,
which it seeks to protect, in part, through proprietary  information  agreements
with  employees,  consultants  and  other  parties.  The  Company's  proprietary
information  agreements with its employees and most of its  consultants  contain
industry  standard  provisions  requiring  such  individuals  to  assign  to the
Company, without additional  consideration,  any inventions conceived or reduced
to practice while retained by the Company, subject to customary exceptions.  The
Company's  officers and other key  employees  also agree not to compete with the
Company  for a period  following  termination.  There can be no  assurance  that
proprietary  information or non-compete  agreements with employees,  consultants


                                       10





and others will not be breached,  that the Company would have adequate  remedies
for any breach,  or that third parties will not  nonetheless  gain access to the
Company's technology.

Third Party Reimbursement

         The Company believes that third party  reimbursement  will be essential
to  commercial  acceptance  of the  Microfocus  1000,  the  Microfocus  APA  and
Microfocus System procedures,  and that overall cost effectiveness and physician
advocacy will be keys to obtaining such reimbursement. The Company believes that
the procedure can be performed for substantially  lower total cost than surgical
treatments  for BPH or cancer or  continuous  drug  therapy.  Consequently,  the
Company believes that third party payers seeking procedures that provide quality
clinical  outcomes  at lower cost will help drive  acceptance  of the  Company's
products.

         The Company's strategy for obtaining reimbursement in the United States
is to obtain appropriate  reimbursement codes and perform studies in conjunction
with clinical  studies to establish the efficacy and cost  effectiveness  of the
its  procedures as compared to surgical and drug  treatments for BPH and cancer.
The Company plans to use this information when approaching health care payers to
obtain reimbursement authorizations. The Company also plans to work closely with
the  medical   community  to  establish  an   attractive   relative   value  and
reimbursement level for the Microfocus procedure.

         With the  increasing  use of managed care and  capitation as a means to
control  health  care costs in the United  States,  the  Company  believes  that
physicians may view the Company's products as a tool to efficaciously  treat BPH
and  cancer  patients  at a  lower  total  cost,  thus  providing  them  with  a
competitive   advantage  when  negotiating  managed  care  contracts.   This  is
especially  important in the United States,  where a significant  portion of the
aging Medicare population is moving into a managed care system.

     Following  regulatory  approval,  physicians using the Company's Microfocus
1000 or, when  completed,  the Microfocus APA to treat cancer and the Microfocus
System to treat BPH will  submit  insurance  claims  for  reimbursement  for the
procedure to third party payers,  such as Medicare carriers,  Medicaid carriers,
Health Maintenance  Organizations  ("HMOs") and private insurers.  In the United
States and in  international  markets,  third party  reimbursement  is generally
available for existing  therapies used to treat cancer and BPH. The availability
and  level  of  reimbursement  from  such  payors  for the use of the  Company's
Microfocus  1000 and the Microfocus  System will be a significant  factor in the
Company's  ability to  commercialize  its cancer and BPH  systems.  The  Company
believes that new regulations  regarding third party  reimbursement  for certain
investigational  devices in the  United  States  will  allow it to pursue  early
reimbursement  from Medicare with  individual  clinical sites prior to receiving
FDA approval.  However, the Company believes that FDA approval will be necessary
to obtain a national coverage determination from Medicare. The national coverage
determination for third party  reimbursement will depend on the determination of
the  United  States  Health  Care  Financing   Administration   ("HCFA"),  which
establishes  national  coverage  policies for Medicare  carriers,  including the
amount to be  reimbursed,  for coverage of claims  submitted  for  reimbursement
related to specific procedures.  Private insurance companies and HMOs make their
own determinations  regarding  coverage and reimbursement  based upon "usual and
customary"  fees.  Reimbursement  experience with a particular third party payor
does not reflect a formal reimbursement  determination by the third party payor.
There can be no  assurance  that the  Company  will  receive  favorable  coding,

                                       11




coverage and reimbursement  determinations for its Microfocus System, Microfocus
1000, and when available,  Microfocus APA from Medicare and other payers or that
amounts reimbursed to physicians for performing its procedure will be sufficient
to encourage physicians to use the Company's products.

         Internationally,  reimbursement  approvals for the Microfocus procedure
will be sought on an individual  country  basis.  Some  international  countries
currently  have  established  reimbursement   authorizations  for  transurethral
microwave  therapy.  Clinical  studies and  physician  advocacy  will be used to
support  reimbursement  requests  in  countries  where  there  is  currently  no
reimbursement for such procedures.

Manufacturing

         The  Microfocus  1000 and the  Microfocus  System  were  designed to be
manufactured   under  FDA  approved  Good  Manufacturing   Procedures   ("GMP").
Historically,  the Company has manufactured and assembled the Microfocus 1000 in
its Columbia,  Maryland  facility and its  Microfocus  System at the site of its
joint  venture  in Canada.  While the  Microfocus  System  will  continue  to be
manufactured  at the  current  location  in  Canada,  the  Microfocus  1000 (and
successor products) will be manufactured by third party contractors. The Company
intends to  manufacture  the Microfocus APA in the same manner as the Microfocus
1000.

          The Company's  products are designed and manufactured with proprietary
know how the Company has  developed  over its history.  Proprietary  know how is
required to manufacture  the  subassemblies  including,  but not limited to, the
solid-state  microwave  generators,  cooling units,  microwave  applicators  and
control  algorithms that run the systems.  All third party  contractors  will be
required to sign agreements to protect any disclosed proprietary know how.

Research and Development

         The  Company  continues  to refine and upgrade  the  components  of its
Microfocus 1000 and Microfocus  System and to pursue the use of thermotherapy in
the  treatment  of various  diseases.  The Company also has been  successful  in
developing relationships with outside parties for research and development.

         The APA  technology  recently  licensed by the  Company was  originally
developed for phased array radar  applications.  MIT and the Company have worked
together over the past two years in the  development of a  comprehensive  phased
array  thermotherapy  system  using  prototypes  of  various  array  applicators
developed for various tumor sites. Preclinical evaluations in test phantoms have
demonstrated  that one  configuration of this system is suitable for the heating
of  tumors  in  breast  tissue.   Further   developments   will  lead  to  other
configurations  most suitable for treatment of prostate,  brain, liver, lung and
other deep seated tumors.

         The  Company  intends  to  initiate  clinical  evaluations  of the  APA
technology in the United  Kingdom at a cancer  research  center.  The Company is
presently  negotiating a clinical study research agreement with the institution.
Clinical trials in the United States will begin after the receipt of an IDE from
the FDA.

         The MMTC  technology  recently  licensed  by the  Company  is a bimodal
treatment  which the Company  believes  will yield a better and faster  response
rate while using lower and safer amounts of power.  Based upon initial review of
the technology,  the Company  believes the technology can easily be incorporated
into the current  Microfocus 800 system.  Clinical  trials are planned for early
1997.

                                       12





         In September 1996, the Company  retained the engineering firm of Herbst
LaZar Bell Inc.  ("HLB") to assist in the adaptation of the APA technology  into
the Microfocus  APA.  Under the agreement  with HLB, the APA technology  will be
used to develop a  prototype  Microfocus  APA which will be utilized in treating
breast cancer.  The  engineering  will focus on integrating  the Microfocus 1000
with the Microfocus APA and updating  software.  The Company will pay HLB 55% of
its  standard  fee rate and the  balance  of any fees  will be paid in shares of
Common Stock at a value of $1.25 per share.

Competition

         Thermotherapy For Cancer

         The Company  believes that there are at least six other domestic firms,
as well as a number of foreign firms,  producing,  or designing and intending to
produce,  thermotherapy  systems to treat cancer.  Of those firms, at least four
have  obtained PMA for their  machines  and several have  obtained IDE for their
machines.  Some,  and possibly all, of those firms have greater  resources  than
those  which the Company  now has or may  reasonably  be expected to have in the
near  future.  Other firms not  presently  in  competition  with the Company may
decide to produce thermotherapy systems which compete with those of the Company.
At least  some of those  firms may  reasonably  be  expected  to have  resources
greater than those of the Company.  As acceptance of  thermotherapy  as a cancer
treatment  increases,  the  Company  expects  that  the  competition  will  also
increase.  There  can  be  no  assurance  that  the  Company  will  be  able  to
successfully meet such competition.  In addition,  the thermotherapy industry is
one of rapid  technological  change.  There can be no assurance  that systems or
technologies superior to that of the Company will not be produced.

         The two major  competitors of the Company for the  Microfocus  1000 are
BSD  Medical  Corporation  in Salt  Lake  City,  Utah  ("BSD")  and  Labthermics
Technology,  Inc.  in  Champaign,   Illinois  ("Labthermics"),   each  of  which
manufactures  thermotherapy  machines  competitive with the Company's Microfocus
1000. The major factors in competition for sales of thermotherapy  equipment are
product  performance,  product service and product cost. The product performance
of the Company's Microfocus 1000 in PMA clinical trials has been superior to the
performance of competing machines. The system manufactured by BSD uses microwave
technology.  Labthermics uses ultrasound  technology to heat the cancer site. As
previously  mentioned,  the Company received PMA approval of its Microfocus 1000
on November 17, 1989.

         BSD  received  its FDA  approval  in  1983  and was  allowed  to  begin
marketing  its  system at that time.  To date,  BSD has sold  approximately  200
thermotherapy  systems  worldwide.  As of September  30, 1996 with the Company's
limited marketing  efforts,  35 of the Microfocus 1000 have been sold worldwide.
Therefore,  BSD has a much larger presence in the thermotherapy  market than has
the Company.

         As thermotherapy  manufacturers  penetrate the market, there will be an
increase  in price  competition.  There  are signs  that  price  competition  is
actively taking place in the current market. The Company feels that its business
strategy and low production  costs for its Microfocus  1000 will enable it to be
very price competitive.

         Service  in the  thermotherapy  business  includes  maintenance  of the
thermotherapy  machines to minimize  downtime as well as training for  personnel
who will utilize the machines to render  treatment to patients.  The Company has
warranty and service policies which are competitive within the industry.

                                       13





The Company's  warranty for the Microfocus 1000 is for a period of 12 months and
the Company offers a service policy following expiration of the warranty.  These
terms are  substantially  similar to the warranties and service policies offered
by  competitors.  The Company  provides  three to four days of training  for the
personnel who will be operating each machine that the Company sells. The Company
also  provides  training  programs at its  facility in Maryland  for doctors who
desire to receive  training on the  Company's  Microfocus  1000.  Both  training
courses are helpful in marketing the Company's  Microfocus  1000,  because users
who become  familiar  with one machine  have a  reluctance  to switch to another
machine which would require  additional  training.  For this reason, the Company
will seek to  increase  the  frequency  of its  training  sessions  given at its
facility in  Maryland.  BSD  provides a similar  training  course on a quarterly
basis at its facility in Salt Lake City.

         Thermotherapy For Prostatic Diseases

         The   thermotherapy   industry  is  highly   competitive.   Along  with
technological   developments  affecting  the  equipment,   increasing  usage  of
thermotherapy  for other  medical  purposes is also  developing.  The latest and
potentially  largest  market is the use of  thermotherapy  for the  treatment of
prostatic diseases,  namely the urethral  obstruction caused by Benign Prostatic
Hyperplasia  (BPH). Due to the increased  potential of this  marketplace,  there
will be a greater number of domestic and international  companies  entering this
field.  The Company believes there are as many as 10 companies in the USA and as
many as 15  companies  worldwide  which are  planning or already  active in this
marketplace.

         On May 7, 1996,  the FDA for the first time approved a microwave  based
BPH treatment device manufactured by EDAP Technomed,  Inc.  ("Technomed").  This
approval  should  enhance market  acceptance of microwave BPH treatment  systems
both in the United States and abroad but gives Technomed a competitive advantage
of being  first to the  market in the  United  States.  Currently,  the  Company
manufactures  and sells its BPH treatment  systems  outside of the United States
through its Canadian facility. The Company's BPH systems are not approved by the
FDA for sale in the United States. However, the Company intends to apply for FDA
approval in the near future.

         With  the  increased  number  of  companies  in the  BPH  thermotherapy
treatment  market,  many of those  companies  have  greater  resources  than the
companies  already in the field of  thermotherapy  treatment  for cancer.  Large
global  companies  such as  Dornier,  Olympus and EDAP  Technomed  International
("Technomed")  will spend large  amounts of  resources to market and develop the
BPH industry.  In addition to the above  companies,  the following are companies
offering BPH  thermotherapy  systems in the worldwide  marketplace:  BSD,  Direx
Medical, Technomatix (Primus), Lund Science, Quantum, GENEMED, Bruker, Urologix,
and  Meditherm.  There are several  other  companies  which have not yet brought
their  products  to  the  international  marketplace.  Presently,  Technomed  is
considered  the  market  leader  with its  system  called  the  Prostatron.  The
Prostatron  unit is a high  cost  system  which  sells  for  approximately  U.S.
$500,000.  Other  companies  are  marketing  their  systems  in the  range of US
$100,000 to $300,000.  The Company is  manufacturing  its line of Microfocus BPH
Systems at its facility in Canada and is  presently  offering the systems in the
range of U.S.  $50,000 to $150,000.  To date, it is believed  there are over 600
installed  BPH Systems  worldwide of which  Technomed and Direx have the largest
share of approximately  30% combined.  There are approximately 75 Microfocus BPH
Systems installed worldwide.


                                       14





Government Regulation

         United States  Regulation.  In the United States, the FDA regulates the
sale and use of medical  devices,  which  include  the  Company's  thermotherapy
systems for both cancer and BPH. A company  introducing a medical  device in the
United States must go through a two step process.  The company must first obtain
an  Investigational  Device  Exemption  ("IDE")  permit  from the FDA. In IDE is
granted upon the manufacturer adequately  demonstrating the safety of the device
for patient use. Receipt of the IDE allows the use of the device on patients for
the  purpose  of  obtaining  efficacy  confirmation.   A  PMA  is  granted  upon
compilation of sufficient  clinical data to establish efficacy for the indicated
use of the  device.  This  process  is  not  only  time  consuming  but is  also
expensive.   Obtaining  PMA  is  a   significant   barrier  to  entry  into  the
thermotherapy  market. Firms which lack PMA face significant  impediments to the
successful marketing of their thermotherapy equipment,  because under applicable
regulations  customers  can obtain  reimbursement  from  Medicare,  Medicaid and
health insurers only for treatment with products that have PMA.

         CLI has an IDE and PMA for the  Microfocus  1000.  The Company does not
have an IDE on the Microfocus System.

         The  Federal  Communications   Commission  (the  "FCC")  regulates  the
frequencies  of microwave and  radio-frequency  emissions from medical and other
types of equipment to prevent  interference  with  commercial  and  governmental
communications  networks.  The frequency of 915 MHZ has been approved by the FCC
for medical  applications  and machines  utilizing that frequency do not require
shielding to prevent interference with  communications.  The Microfocus 1000 and
the Microfocus System utilize the 915 MHZ frequency.

         In December  1984, the Health Care  Financing  Administration  ("HCFA")
approved  reimbursement under Medicare and Medicaid for thermotherapy  treatment
when used in conjunction with radiation therapy for the treatment of surface and
subsurface tumors. At this time, most of the large medical insurance carriers in
the United States have approved  reimbursement for such thermotherapy  treatment
under  their  health  policies.   Thermotherapy   treatment  administered  using
equipment which has received PMA is eligible for such reimbursement.

         The Company and its  facilities are subject to inspection by the FDA at
any time to insure compliance with FDA regulations in the production and sale of
medical  products.   Failure  to  comply  or  maintain   compliance  with  those
regulations could have a material adverse effect upon the Company's  operations.
The Company believes that it is substantially in compliance with FDA regulations
governing the manufacturing and marketing of medical devices.

         Foreign  Regulation.  Sales of  medical  devices  outside of the United
States are subject to United States export  requirements and foreign  regulatory
requirements.  Export sales of  investigational  devices that are subject to PMA
requirements  and have not  received FDA  marketing  approval  generally  may be
subject to FDA export  permit  requirements  under the  Federal  Food,  Drug and
Cosmetic Act ("FDC Act") depending upon, among other things,  the purpose of the
export  (investigational  or  commercial)  and on  whether  the device has valid
marketing  authorization  in a  country  listed  in the FDA  Export  Reform  and
Enhancement  Act of 1996. In order to obtain such a permit,  when required,  the
Company  must  provide  the FDA  with  documentation  from  the  medical  device
regulatory  authority of the country in which the purchaser is located,  stating
that the device has the approval of the country. In addition,  the FDA must find
that  exportation  of the device is not contrary to the public health and safety
of the country in order for the Company to obtain the permit.

                                       15





         The Company currently sells products in selected  countries in Asia and
Europe.  The  registration  requirements  within  these  countries  is the  sole
responsibility   of  the  distributors  in  each  of  these   countries.   Legal
restrictions  on the sale of  imported  medical  devices  vary from  country  to
country. The time required to obtain approval by a foreign country may be longer
or shorter than that required for FDA approval, and the requirements may differ.
The Company expects to receive  approvals for marketing in a number of countries
outside the United  States  prior to the time that it will be able to market its
products in the United States. The timing for such approvals is not known.

Product Liability and Insurance

         The  business  of the  Company  entails  the risk of product  liability
claims. Although the Company has not experienced any product liability claims to
date, any such claims could have an adverse  impact on the Company.  In the past
and currently,  the Company has not maintained product liability insurance.  The
Company is currently in the process of securing product  liability  insurance in
the amount of $5,000,000. The Company evaluates its insurance requirements on an
ongoing basis.  There can be no assurance that product  liability claims will be
covered by such  insurance,  will not exceed such insurance  coverage  limits or
that such insurance  will be available on  commercially  reasonable  terms or at
all.

Terminated Business Opportunities

         Due to the slow development of the market for  thermotherapy  products,
the Company sought to develop other business  opportunities to provide a quicker
and greater return to the Company's shareholders. With the recent acquisition of
new  technology,  the Company  believes that its best  opportunity for long-term
growth is to focus its activities on its core business--thermotherapy  products.
Accordingly,  the Company has terminated, or is terminating,  the joint ventures
and/or  business  opportunities  which  do not  focus  on or  enhance  the  core
business.  The  following  are assets and  projects  which have been  terminated
during 1996:

         Aestar Fine Chemical Company.  The Company has previously disclosed the
investment  in the Company by Mr. Gao Yu Wen of assets  valued at  approximately
$10,000,000 in exchange for 20,000,000 shares of Common Stock of the Company. As
part of the  investment of Mr. Gao in the Company,  Mr. Gao  transferred  to the
Company a 9.5%  interest  in the  Aestar  Fine  Chemical  Incorporation  Limited
Company  ("Aestar").  Aestar is a  corporation  organized  under the laws of the
People's  Republic of China. The Company  originally  looked to this interest in
Aestar as a significant source of dividend income and as a vehicle to facilitate
joint ventures for the manufacturing and sale of cosmetics in China.

         On June 8, 1996,  the parties  entered into a  Redemption  Agreement by
which the Company  agreed to repurchase  from Mr. Gao  16,000,000  shares of the
Company's  Common Stock in  consideration  for the  Company's  9.5%  interest in
Aestar and to  repurchase an  additional  4,000,000  shares of Common Stock at a
price of $.55 per  shares  for a total of $2.2  million.  Under the terms of the
Redemption  Agreement,  the entire 20,000,000 shares were retained by Mr. Gao to
secure the payment of the $2.2 million. On October 23, 1996, the Company and Mr.
Gao, through his representatives,  executed an Amendment by which Mr. Gao agreed
(i) to immediately deliver to the Company the 16,000,000 shares of Common Stock;
(ii) to give the  Company an  additional  one month to  purchase  the  remaining
4,000,000 shares; and (iii) to reduce the purchase price to $2,160,000. Pursuant
to the terms of the Amendment,  on October 23, 1996,  Mr. Gao's  representatives
delivered duly executed stock  certificates  and stock powers for the 16,000,000

                                       16





shares of Common  Stock  which  stock has been  cancelled  on the records of the
Company.  This  represents a repurchase  by the Company of nearly forty  percent
(40%) of its issued and outstanding stock.

         Eastwell  Management   Services  Limited.   The  Company  entered  into
negotiations  to  acquire  100%  of  the   outstanding   stock  of  Asia-Pacific
Communication Corporation Limited, formerly known as Novatel, Asia ("APC"), from
Eastwell  Management  Services  Limited  ("Eastwell") in exchange for 24 million
shares of the  Company's  Common  Stock and  warrants  to acquire  another  five
percent (5%) interest in the Company.  The proposed  terms of the agreement were
set forth in an  Acquisition  Agreement,  dated  March,  1994 (the  "Acquisition
Agreement").  APC (which was formerly known as Novatel, Asia) is in the business
of manufacturing  telecommunications  equipment and providing telecommunications
services.  The  consummation  of the agreement with Eastwell was contingent upon
satisfaction of certain conditions precedent.  Because those conditions were not
satisfied,  the Company elected not to proceed with the agreement with Eastwell.
There is no written  agreement  terminating the  contemplated  transaction  with
Eastwell.

         Rainbow Ball  Development  Limited.  On October 11,  1993,  the Company
entered into an agreement with Mr. Carlton Poon ("Poon")  whereby Poon agreed to
provide approximately  $125,000 U.S. to fund a joint venture between the Company
and Poon named Rainbow Ball Development  Limited ("Rainbow Ball").  Rainbow Ball
was formed to develop, manufacture and market certain medical imaging technology
and a portable  x-ray  device.  After Mr. Poon funded the  $125,000  the parties
decided  not to  proceed  with the  joint  venture.  By  means of a  Termination
Agreement,  dated August 28, 1996,  the parties  terminated  the joint  venture.
Under the terms of the Termination  Agreement,  the Company is to deliver to Mr.
Poon 355,757  fully paid and  non-assessable  shares of Company  Common Stock in
full  satisfaction  of all  obligations  of the Company and Rainbow  Ball to Mr.
Poon.

         Unisol.  By  Purchase  Agreement,  dated  April 26,  1995,  the Company
entered into an  agreement to purchase a 50% interest in the United  Aerosol and
Home Products Company, Ltd. ("Unisol"), located in Zhongshan, China, from Cosmos
Peace Development Corporation,  a Hong Kong corporation ("Cosmos").  The Company
was  introduced  to Unisol  through Mr. Gao as part of the joint  ventures to be
implemented in China.  Unisol is a specialty  chemical and fine chemical aerosol
packaging and bottle/can  filling business.  The purchase price was to be 20% of
the appraised value of Unisol  equipment,  payable in the Company's Common Stock
based upon the value of the Common  Stock at the close of  business on April 26,
1996. The Unisol  acquisition was executed as part of the Gao  transaction.  The
intent of the Unisol  acquisition was to manufacture  and package  personal care
and cosmetic  products.  The  agreement  was verbally  terminated on October 23,
1996,  at the same time that the Company  executed  the  Amendment  by which the
Company  redeemed  its  stock  from  Mr.  Gao.  There  is no  written  agreement
terminating the relationship between the Company and Unisol.

     Ardex Equipment,  LLC. The Company invested  $450,000 (of which $50,000 has
been repaid to the Company) to acquire a 17.1111%  interest in Ardex  Equipment,
LLC  ("Ardex").  The  Company  originally  contracted  to acquire a  controlling
interest in Ardex. Ardex manufactures  industrial plumbing  equipment.  With the
redemption of the Common Stock from Mr. Gao, the Company is also terminating its
relationship  with Ardex.  Under the terms of a Binding Letter of Intent,  dated
August 2, 1996,  agreed to convert the Company's  equity  interest into a 5 year
negotiable  promissory note, to bear interest at the rate of eight percent (8%).
The note is payable on an interest-only  basis until the principal  becomes due.
Principal becomes due upon the first to happen of the following: (i) a public or
private  offering  successfully  completed  by  Ardex  of  $1.5  million  in the
aggregate or more;  (ii) ninety (90) days following a year end of Ardex in which

                                       17



sales for the year have  been  $3,000,000  or more;  (iii)  Ardex  having a cash
balance of $800,000 or more from operations; or (iv) five years from the date of
the promissory note.

Employees

         As  of  September  30,  1996,  the  Company  had  seven  (7)  full-time
employees,  of whom three (3) are managerial,  one (1) is  engineering,  one (1)
administrative,  one (1) is in production in the main office in Maryland and one
(1) employee is in the Hong Kong office.

         None  of  the  Company's  employees  is  represented  by  a  collective
bargaining organization.  The Company considers its relations with its employees
to be good.


ITEM 2.  PROPERTIES

         The Company's  corporate  headquarters  consist of approximately  5,918
square feet of office,  laboratory and production  space at 10220-I Old Columbia
Road,  Columbia,  Maryland  21046-1705.  The Company leases the premises from an
unaffiliated party on an oral month-to-month basis.
Monthly rent is $4,172.00.

         The Company also leases office space  consisting of  approximately  500
square feet located at 11/F Flat B, Hanley House 68 Canton Road, T.S.T. Kowloon,
Hong  Kong.  The  property  is leased on an oral  month-to-month  basis  from an
unaffiliated party at a monthly lease rate of $1,200 (U.S.).

ITEM 3.  LEGAL PROCEEDINGS

         The Company presently is not a party to any litigation, and the Company
is not aware of any threat of litigation.

         In the  normal  course of  business,  the  Company  may be  subject  to
warranty  and  product  liability  claims on its  thermotherapy  equipment.  The
Company  does not have a  product  liability  insurance  policy in  effect.  The
assertion of any product  liability  claim against the Company,  therefore,  may
have an adverse affect on its financial condition.  As of September 30, 1996, no
liability claims against the Company have been asserted.

ITEM 4.  SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

         No matters were submitted to a vote of the security  holders during the
calendar year ending 1996.

                                     PART II

ITEM 5.      MARKET FOR REGISTRANT'S COMMON EQUITY AND RELATED
             STOCKHOLDER MATTERS

           The Company's  Common Stock is traded on the NASD OTC Bulletin Board.
The  quotations  set forth below  reflect  inter-dealer  prices,  do not include
retail  markups,  markdowns or commissions,  and may not  necessarily  represent
actual  transactions.  There were  approximately  2,600 holders of record of the
Common Stock as of September 30, 1996. The Company has never paid cash dividends
on its stock and does not expect to pay any cash  dividends  in the  foreseeable
future.

                                       18






                                             Year ended September 30
Period                                    1995                     1996
- ------                                    ----                     ----
                                    High       Low          High          Low
                                    ----       ---          ----          ---
1st Quarter (Oct. 1 to Dec. 31)    19/32       1/4          17/32         1/2
2nd Quarter (Jan. 1 to March 31)   35/64       1/4           5/8         25/64
3rd Quarter (April 1 to June 30)     1         5/8          1-1/16       17/64
4th Quarter (July 1 to Sept. 30)  1-23/32     31/32         1-9/32       21/32

ITEM 6.  SELECTED FINANCIAL DATA

 The following table summarizes  certain  financial data for the Company for the
years ended September 30, 1996,  1995,  1994, 1993, and 1992 and is qualified in
its  entirety  by,  and  should  be  read  in  conjunction  with  the  Financial
Statements,  the related Notes thereto and "Management's Discussion and Analysis
of Financial  Condition and Results of  Operations"  included  elsewhere in this
report.

Fiscal Year Ended September 30, 1992 1993 1994 1995 1996 ---- ---- ---- ---- ---- Statement of Operations Data: Revenues: Product Sales $2,012,544 $1,811,774 $1,025,651 $157,618 $74,006 Research and development contracts 18,750 40,377 60,742 0 0 ------- ------- ------- ------- ------- Total revenues 2,031,114 $1,852,151 $1,086,393 $157,618 $74,006 Cost of product sales 733,111 694,150 494,946 67,350 64,406 ------- --------- --------- ------- ------ Gross margin on product sales 1,298,003 1,158,001 591,447 90,268 9,600 Other costs and expenses: Research and development 152,898 186,916 202,569 18,546 94,012 Selling, general and administrative 574,005 739,595 704,295 1,369,845 1,338,370 Amortization of intangible assets - - - - Total operating expenses 726,903 926,511 906,864 1,388,391 1,432,382 Profit (Loss) from operations 571,110 231,490 (315,417) (1,298,123) (1,422,782) Other income (expense) 147,390 (7,244) 170,997 (8,389) (425,183(1)) Interest income (expense) (210,870) (236,847) (184,700) (90,808) (85,506) Extraordinary Item - Gain or forgiveness of debt 591,728 Net income (loss) 507,620 (12,601) 390,880 (1,397,317) (1,933,471) Net loss per share(1) 0.034 ($.001) $.023 ($.060) ($.049) Weighted average shares outstanding(1) 15,081,378 15,608,490 16,712,978 23,466,070 39,499,650 At September 30, 1992 1993 1994 1995 1996 ---- ---- ---- ---- ---- Balance Sheet Data: Working Capital (2,795,328) (2,434,832) (748,193) (1,101,136) (646,754) Total Assets 1,111,676 998,403 955,456 9,710,742 9,321,600(2) Long-term debt, less current maturities 26,000 2,000 1,213,000 Redeemable Convertible Preferred Stock Accumulated deficit (9,214,607) (9,271,725) (8,880,845) (10,278,162) (12,211,633) Total stockholders' equity (deficit) (2,716,230) (2,346,021) (666,542) 8,128,768 6,755,874(2)
(1) Includes $17,009 gain on disposition of investment in Ardex Equipment, L.L.C. 19 (2) On October 23, 1996, the Company, based on the provisions of an agreement reached on June 6, 1996, as amended, redeemed 16,000,000 shares of its Common Stock. The redemption provided for the Company to return its investment in Aestar Fine Chemical Company (valued at $8,000,000 on the Company's September 30, 1996 balance sheet) and to relinquish its rights to the funds held under an investment contract ($40,000 at September 30, 1996) in order to affect the transaction. This transaction has a significant impact on the financial position, current ratios and stockholder's equity of the Company. If the foregoing transaction had occurred on or before September 30, 1996, total assets would have been reduced by $8,040,000 and stockholder's equity would have reduced by $8,040,000, resulting in a negative stockholder's equity of ($1,284,126). ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS Forward-Looking Statements Statements regarding the Company's expectations as to demand for its products and certain other information presented in this Form 10-K constitute forward looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Although the Company believes that its expectations are based on reasonable assumptions within the bounds of its knowledge of its business and operations, there can be no assurance that actual results will not differ materially from its expectations. Factors which could cause actual results to differ from expectations include, but are not limited to the following: 1. Decreasing Sales, Increasing Losses and Undercapitalization. The Company's product sales have been substantially decreasing over the past three years. There is no assurance sales will increase with the application of new technologies being developed by the Company. The Company has had increasing losses for the last three years which have resulted in an accumulated deficit of $12,211,633 for the period ending September 30, 1996. Losses will continue until current and future sales increase substantially. The Company lacks adequate capital to finance its research and development and marketing. Lack of adequate capital and governmental regulatory approvals will effect future sales. Furthermore, hyperthermia has not been widely accepted by the medical community as an effective cancer treatment. 2. Limited Products. The Company currently has a limited number of products. Failure to develop new products utilizing current products and newly acquired technology will effect the profitability of the Company. 3. Lack of a Current Marketing Plan. The Company does not have an active current marketing plan. It is developing a plan to share revenue from treatment which is dependant on market acceptance and adequate capitalization. General Since inception, the Company has incurred substantial operating losses, principally from expenses associated with the Company's research and development programs, the clinical trials conducted in connection with the Company's thermotherapy systems and the preparation of the related IDE and PMA application for submission to the FDA. The Company has experienced significant operating losses and as of September 30, 1996 had an accumulated deficit of $12,211,633. The Company expects such operating losses to continue and possibly increase in the near term and for the foreseeable future as it continues its product development efforts, expands its marketing and sales activities and scales up its manufacturing operations. The Company's ability to achieve profitability is dependent upon its ability to successfully obtain governmental approvals, manufacture, market and sell its new technology and integrate such technology 20 into its thermotherapy systems. The Company has not been able to successfully market its current thermotherapy system. There can be no assurance that the Company will be able to successfully commercialize its newly acquired technology and apply it to its current thermotherapy systems or that profitability will ever be achieved. The operating results of the Company have fluctuated significantly in the past on an annual and a quarterly basis. The Company expects that its operating results will fluctuate significantly from quarter to quarter in the future and will depend on a number of factors, many of which are outside the Company's control. The major obstacles facing the Company over the last several years have been inadequate funding, a negative net worth, and the slow development of the thermotherapy market as a sizeable market due to technical shortcomings of the thermotherapy equipment available commercially. To overcome these problems, during the past two years the Company embarked upon a diversification program whereby the Company sought a strategic partner that could provide both capital and new opportunities for the Company. The result of this effort was the agreement with Mr. Gao Yu Wen which infused capital and gave the Company the opportunity to develop through a strategic alliance was to be a cosmetic and fine chemical business for the sale of these products in China. As set forth above in "Terminated Business Opportunities," the relationship with Mr. Gao has been terminated and the Company has redeemed 16 million of the 20 million shares purchased by Mr. Gao. The Company has refocused the Company's efforts on the enhancement of current products through the development of new technology and sale of the thermotherapy products as the Company's core business. The Company is currently focused on the enhancement of its thermotherapy equipment and obtaining governmental approvals. Towards this end the Company has licensed the APA technology and the MMTC technology. The Company anticipates that its results of operations will be affected for the foreseeable future by a number of factors, including its ability to develop the new technology to enhance its current systems, regulatory matters, health care cost reimbursements, clinical studies and market acceptance. Results of Operations Comparison of Fiscal Year Ended September 30, 1996 to Fiscal Year Ended September 30, 1995 Product sales decreased to $74,006 in fiscal 1996 from $157,618 in fiscal 1995. The decrease was due, primarily, to decreased emphasis on sales of Microfocus products as the Company sought other business opportunities. With the renewed focus on the development and sale of the Microfocus products, the Company anticipates that sales of its thermotherapy systems will account for all sales in the foreseeable future. The Company will focus on developing its new products. Increased sales of products are not expected until the new technologies are developed and approved for sale by governmental regulatory agencies. Cost of product sales decreased to $64,406 in fiscal 1996 from $67,350 in fiscal 1995 due to decreased sales volume. The Company expects gross margins to increase in the future due to improved overhead absorption and manufacturing efficiencies. Research and development expense increased to $94,012 in fiscal 1996 from $18,546 in fiscal 1995 due to increased emphasis on technology enhancements. The Company expects to significantly increase its expenditures for research and 21 development to fund the development or enhancement of products by incorporating the APA technology and the MMTC technology. Selling, general and administrative expenses decreased in amount to $1,338,370 in fiscal 1996 from $1,369,845 in fiscal 1995. The Company expects selling and marketing expense to increase substantially as it expands its advertising and promotional activities and increases its marketing and sales force, principally for the commercialization of its thermotherapy systems. Interest expense decreased to $85,506 in fiscal 1996 from $90,805 in fiscal 1995. Comparison of Fiscal Year Ended September 30, 1995 to Fiscal Year Ended September 30, 1994 Product sales decreased to $157,618 in fiscal 1995 from $1,086,393 in fiscal 1994. The decrease was due, primarily, to continued slowing sales in the thermotherapy market. Cost of product sales decreased to $67,350 in fiscal 1995 from $494,946 in fiscal 1994 due to decreased sales volume. Research and development expense decreased to $18,546 in fiscal 1995 from $202,569 in fiscal 1994. Most of the decrease was due a softening of the marketplace for thermotherapy products and a shift in focus from development efforts relating to the Company's core technologies to seeking new business opportunities and partners. Selling, general and administrative expenses increased to $1,369,845 in fiscal 1995 from $704,295 in fiscal 1994. Interest expense decreased to $90,808 in fiscal 1995 from $184,700 in fiscal 1994 due to conversion of debt to equity. Liquidity and Capital Resources Since inception, the Company's expenses have significantly exceeded its revenues, resulting in an accumulated deficit of $12,211,633 at September 30, 1996. The Company has funded its operations primarily through the sale of equity securities. At September 30, 1996, the Company had cash, cash equivalents and short-term investments aggregating approximately $246,931. Net cash used in the Company's operating activities was $1,462,588 for the fiscal year ended September 30, 1996. The Company does not have any bank financing arrangements. The Company's indebtedness consists of two notes payable to Dr. Augustine Cheung with a total face amount of $121,419; a note payable to Yu Shai Lai in the amount of $36,041; a note payable to Ada Lam in the amount of $28,502; a note payable to Ruth Kurz in the amount of $93,750; a note payable to Lake Shu Loon in the amount of $10,000; an oral agreement to pay Charles Shelton an amount currently estimated between $35,000 and $50,000; and trade debt totaling $197,190. In addition, commencing on July 10, 1996, the Company sold $1,205,000 in senior secured convertible notes accruing interest at 8 percent per annum (the "Senior Notes"). The Senior Notes have priority over payment of any other indebtedness of the Company. The holders of the Senior Notes can elect to either convert the notes into Common Stock at an option price of $0.41 per share or be paid principal and interest upon the earlier to occur of (i) the next private offering; or (ii) December 31, 1997. 22 The Company has incurred negative cash flows from operations since its inception, and has expended, and expects to continue to expend in the future, substantial funds to complete its planned product development efforts, including seeking FDA approval for the domestic sale of the Company's products, expand its sales and marketing activities and scale up its manufacturing. The Company expects that its existing capital resources will not be adequate to fund the Company's operations through the next twelve months. The Company is dependent on raising additional capital to fund its development of technology and to implement a marketing plan. Such dependence will continue at least until the Company begins marketing its new technologies. The Company's future capital requirements and the adequacy of available funds will depend on numerous factors, including the successful commercialization of the thermotherapy systems progress in its product development efforts, the magnitude and scope of such efforts, progress with preclinical studies and clinical trials, the cost and timing of manufacturing scale-up, the development of effective sales and marketing activities, the cost of filing, prosecuting, defending and enforcing patent claims and other intellectual property rights, competing technological and market developments, and the development of strategic alliances for the marketing of its products. To the extent that funds generated from the Company's operations are insufficient to meet current or planned operating requirements, the Company will be required to obtain additional funds through equity or debt financing, strategic alliances with corporate partners and others, or through other sources. The Company does not have any committed sources of additional financing, and there can be no assurance that additional funding, if necessary, will be available on acceptable terms, if at all. If adequate funds are not available, the Company may be required to delay, scale-back or eliminate certain aspects of its operations or attempt to obtain funds through arrangements with collaborative partners or others that may require the Company to relinquish rights to certain of its technologies, product candidates, products or potential markets. If adequate funds are not available, the Company's business, financial condition and results of operations will be materially and adversely effected. The Company has agreed to pay Gao Yu Wen $2,160,000 on or before March 31, 1997 to redeem 4,000,000 shares of the Company's Common Stock. The Company has agreed to pay MIT $10,000 in 1997 and also must develop time table which requires the expenditure of research and development funds. The Company has also entered into a Settlement Agreement, dated October 28, 1996, whereby the Company undertook to use its best efforts to pay to William O. Cave, a former director, the sum of $194,825 on or before February 28, 1997. The Company has a contingent liability to MMTC in the amount of $50,000 in 1997 if the Company fails to meet the milestones identified under "Patents and Proprietary Rights," above; and must develop criteria which require the expenditure of research and development funds. The Company is also required to pay HLB certain engineering fees, the amount of which are presently unknown. The Company is also required to do clinical trials to prepare for submission of products to the FDA. The amount required to perform such trials and to prosecute the applications in not currently known. The Company does not currently have funds available to do such trials and clinical work. The Company has committed to pay advisors and officers pursuant to contractual arrangements set forth in "Directors and Executive Officers of the Registrant" and "Certain Relationships and Related Transactions." The Company will be dependent on additional capital to be raised to fulfill all of the above agreements and obligations. During fiscal year 1996, the Company issued a large number of options and warrants in connection with its funding activities. Options or warrants to officers, directors, related parties and five percent (5%) shareholders are addressed in Part III of this Form 10-K. In addition to those options and warrants, the Company has issued options and warrants in connection with funding activities to purchase a total of 4,670,715 shares of Common Stock, with 23 exercise prices ranging from $.25 per share to $.41 per share. Some of the warrants issued have anti-dilution provisions which may affect the total number of shares available for purchase under the warrants. ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA The financial statements, supplementary data and report of independent public accountants are filed as part of this report on pages F-1 through F-15. ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE No change of accountants and/or disagreements on any matter of accounting principles or financial statement disclosures have occurred within the last two years. PART III ITEM 10. DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT The directors and executive officers of the Company are as follows: Name Age Positions with the Company - -------------------- ----- ----------------------------------- Augustine Y. Cheung 49 Chairman of the Board Verle D. Blaha 66 Chief Executive Officer, President and Director Charles C. Shelton 51 Executive Vice President and Director Robert F. Schiffmann 61 Director Joseph M. Colino 57 Director John Mon 44 Treasurer/General Manager Dr. Cheung was the founder of the Company, was President from 1982 to 1986, was Chief Executive Officer from 1982 to 1996 and has been Chairman since 1982. From 1982 to 1985, Dr. Cheung was a Research Associate Professor of the Department of Electrical Engineering and Computer Science at George Washington University and from 1975 to 1981 was a Research Associate Professor and Assistant Professor at the Institute for Physical Science and Technology and the Department of Radiation Therapy at the University of Maryland. Dr. Cheung holds a Ph.D. and Masters degree from University of Maryland. Mr. Blaha has been a director, President and Chief Executive Officer of the Company since September 6, 1996. Prior to joining the Company, Mr. Blaha provided consulting services to the microwave industry. From 1986 to 1991, Mr. Blaha was a director, and the President and Chief Operations Officer for the Company. From 1982 to 1986, Mr. Blaha was Vice President and General Manager of Holaday Industries, Inc. From 1957 to 1982, Mr. Blaha held a succession of senior management positions at Litton Industries, Inc. Mr. Blaha was Senior Vice President of Technology and Development of Litton's Microwave Cooking Products Division. Mr. Blaha holds a B.S.B and an MBA degree from University of Minnesota. 24 Mr. Shelton has served as the Company's in-house counsel from 1993 to 1996, and as Executive Vice President and a director from 1993. Mr. Shelton has practiced in the areas of corporate and tax law with Charles C. Shelton, PA, from 1993 to the present. From 1973 to 1993, he practiced law with Semmes, Bowen & Semmes. Mr. Shelton is a Vice President and director with HRP Technologies, Inc. (previously known as Ardex Equipment, LLC), a public company traded on the Bulletin Board. Mr. Colino has been a director since 1995. From 1991 to the present, Mr. Colino has served as the President of HRP Technologies, Inc. (previously known as Ardex Equipment, LLC) and Parec Enterprises, Inc.. Mr. Schiffmann has served as a director of the Company since September 1986. Since 1991, Mr. Schiffmann has served as President of R. F. Schiffmann Associates, Inc., a microwave consulting laboratory. He is also Chairman of Quicklave L.L.C., and Microwave Concepts, Inc., which are independent research companies specializing in microwave technology. Mr. Schiffmann holds a Bachelor of Science Degree in Pharmaceutical Science from Columbia University and a Master of Science degree from Purdue University. Mr. Mon has served as Treasurer/General Manager of the Company since 1989. From 1984 to 1988, Mr. Mon was an economist with the U.S. Department of Commerce in charge of forecasting business sales, inventory and prices for all business sectors in the estimation of Gross National Product. Mr. Mon holds a B.S. degree from the University of Maryland. Mr. Shelton and Mr. Colino have notified the Company that they will not serve on the Board of Directors after the expiration of their current terms and, accordingly, they are not seeking re- election to the Board of Directors. Nominee to the Board of Directors The following individual has been nominated to serve on the Board of Directors: Warren C. Stearns. Mr. Stearns was nominated to serve to on the Board of Directors on August 14, 1996. Mr. Stearns has been and currently is President of Stearns Management Company, a capital advisory firm, since 1989. Prior to 1989, Mr. Stearns acted as vice president of Stearns Management Company. Mr. Stearns holds an M.B.A. degree from Harvard University and a B.A. degree from Amherst College. Advisory Board The Company is presently organizing an Advisory Board to be comprised of business and industry professionals and experts. The Company presently anticipates have as many as six members on the Advisory Board. The purpose of the Advisory Board will be to assist the management of the Company in identifying technology trends and new business opportunities within the industry. The Advisory Board will operate in a consulting fashion and will not act as managers or directors of the Company. The following persons have been nominated to serve on the Company's Advisory Board: Stuart Fuchs. Mr. Fuchs has been nominated to serve as Chairman of the Advisory Board. He is President of Nace Resources, Inc., a firm providing consulting and marketing services to companies in the biotechnology and medical device fields. 25 Prior to founding Nace in 1995, Mr. Fuchs was an investment banker in the Fixed Income Division of Goldman Sachs & Co. in New York and Chicago. Until joining Goldman Sachs in 1976, he was an attorney practicing securities and tax law with Barrett Smith Shapiro & Simon in New York, New York. Mr. Fuchs is a graduate of Harvard College and Harvard Law School. Michael Davidson, M.D. Dr. Davidson has been nominated to serve as a member of the Advisory Board. Dr. Davidson is a physician specializing in design of clinical trials. Dr. Davidson currently practices and is President of the Chicago Center for Clinical Research. Dr. Davidson holds a B.A., M.S. from Northwestern University and a M.D. from Ohio State University. The Company may designate additional individuals to serve on the Advisory Board as the Company identifies individuals with appropriate qualifications. Compliance with Section 16(a) of the Exchange Act Section 16(a) of the Securities Exchange Act of 1934 requires the Company's officers and directors, and persons who own more than ten percent of a registered class of the Company's equity securities, to file reports of ownership and changes in ownership with the Securities and Exchange Commission and the National Association of Securities Dealers. Officers, directors and greater than ten-percent shareholders are required by Securities and Exchange Commission regulations to furnish the Company with copies of all Section 16(a) forms they file. Based solely on a review of the copies of such forms furnished to the Company between October 1, 1995 and September 30, 1996, on year-end reports furnished to the Company after September 30, 1996 and on representations that no other reports were required, the Company has determined that during the last fiscal year all applicable 16(a) filing requirements were met except as follows: Dr. Augustine Y. Cheung, Chairman of the Board of Directors, acquired 2,000 shares of Common Stock on January 17, 1994; acquired 1,2000,000 shares of Common Stock on June 30, 1994; acquired 2000 shares of Common Stock on December 31, 1994; acquired 249,058 shares of Common Stock on June 30, 1995; acquired 52,000 shares of Common Stock on September 30, 1996; and disposed of 195,000 shares of Common Stock on March 7, 1995. Dr. Cheung also received an option to acquire 50,000 shares of Common Stock on December 31, 1996 and an option to acquire 400,000 shares of Common Stock on May 16, 1996. Each of these transactions should have been reported on Form 3 and Forms 4. The transactions were instead disclosed on a Form 5 filed on or about November 10, 1996. John Mon, Treasurer/General Manager, and a former director of the Company, acquired 2,000 shares of Common Stock on January 17, 1994; acquired 49,800 shares of Common Stock on January 17, 1994; acquired 2,000 shares of Common Stock on December 31, 1994; and acquired 58,505 shares of Common Stock on June 30, 1995. Mr. Mon also received an option to acquire 400,000 shares of Common Stock on May 16, 1996. These transactions should have been reported on Form 3 and Form 4. The transactions were instead disclosed on a Form 5 filed on or about November 10, 1996. Robert F. Schiffman, a director, acquired 62,000 shares of Common Stock on September 30, 1996 and received an option to purchase 100,000 shares of Common Stock on May 16, 1996. These transactions should have been disclosed on Forms 4. The transactions were instead disclosed on a Form 5 filed on or about November 13, 1996. 26 Charles C. Shelton, a director and Executive Vice President, acquired 103,000 shares of Common Stock on December 20, 1993; acquired 2,000 shares of Common Stock on January 17, 1994; acquired 150,000 shares of Common Stock on September 9, 1994; acquired 2,000 shares of Common Stock on January 17, 1996; and received an option to acquire 400,000 shares of Common Stock on May 16, 1996. These transactions should have been reported on Form 3 and Form 4. The transactions were instead disclosed on a Form 5 filed on or about November 16, 1996. Joseph M. Colino, a director, acquired 2800 shares of Common Stock on June 30, 1995. This transaction should have been reported on Form 3. The transaction was instead disclosed on a Form 5 filed on or about November 15, 1996. ITEM 11. Executive Compensation The following table sets forth the aggregate cash compensation paid for services rendered to the Company in all capacities during the last three fiscal years to the Company's Chief Executive Officer and to each of the Company's other executive officers where annual salary and bonus for the most recent fiscal year exceeded $100,000.
Summary Compensation Table Annual Compensation Long-Term All Other Compensation Awards Compensation ($) Other Annual Restricted Stock Name and Salary Bonus Compensation Stock Awards Options Principal Position Year ($) ($) ($) ($) (#) Augustine Y. Cheung, Chairman 1996 $125,000 2,000(1) 400,000(2) of the Board of Directors 1995 $125,000 2,000 - 1994 $114,480 2,000 50,000(3) =============================== ======== ============ ========== ============= ============= =========== ===============
(1) In each of 1994, 1995 and 1996, Dr. Cheung received 2,000 shares of Common Stock for his services as a director. (2) In 1996, Dr. Cheung received an option to purchase 400,000 shares at $0.35 per share, exercisable on or before May 16, 2001 (3) In 1994, Dr. Cheung received and option to purchase 50,000 shares at $0.125 per share, which he exercised on September 30, 1996. There are no option, retirement, pension, or profit sharing plans for the benefit of the Company's officers, directors and employees. The Company does provide health insurance coverage for its employees. The Board of Directors may recommend and adopt additional programs in the future for the benefit of officers, directors and employees. Option Grants in 1996 Information concerning 1996 grants to named executive officers is reflected in the table below. The amounts shown for each of the named executive officers as potential realizable values are based on arbitrarily assumed annualized rates of stock price appreciation of five percent and ten percent over the full five (and in one case eight) year term of the options. These potential realizable values are based solely on arbitrarily assumed rates of price appreciation required by applicable SEC regulations. Actual gains, if any, on option exercises and Common Stockholdings are dependent on the future performance of 27 the Company and overall stock market conditions. There can be no assurance that the potential realizable values shown in this table will be achieved. Option Grants in 1996
Potential Realizable Value at Assumed Annual Rates of Stock Price Appreciation Individual Grants for Option Term % of Total Options Options Granted to Granted Employees in Exercise Expiration Name (#) 1996 Price Date (5%) (10%) Augustine Y. Cheung 400,000 16.53% $0.35 5/16/2001 $38,679 $ 85,471 Verle D. Blaha 400,000 16.53% $0.41 8/13/2004 $78,302 $187,548 John Mon 400,000 16.53% $0.35 5/16/2001 $38,679 $ 85,471 Charles C. Shelton 400,000 16.53% $0.35 5/16/2001 $38,679 $ 85,471 ========================== ============== ================ ============ ============= ================ ================
Aggregated Option Exercises and Year-End Option Values in 1996 The following table summarizes for each of the named executive officers of the Company the number of stock options, if any, exercised during 1996, the aggregate dollar value realized upon exercise, the total number of unexercised options held at September 30, 1996 and the aggregate dollar value of the in-the-money unexercised options, if any, held at September 30, 1996. Value realized upon exercise is the difference between the fair market value of the underlying stock on the exercise date and the exercise price of the option. The value of unexercised, in-the-money options at September 30, 1996 is the difference between its exercise price and the fair market value of the underlying stock on September 30, 1996, which was $1.03 per share based on the closing bid price of the Common Stock on September 30, 1996. The underlying options have not been and may never be exercised; and actual gains, if any, on exercise will depend on the value of the Common Stock on the actual date of exercise. There can be no assurance that these values will be realized. 28 Aggregated Option Exercises in 1996 and Year-End Option Values
Value of Unexercised In-the-Money Options Number of Unexercised Options at 9/30/96 at 9/30/96 Shares Acquired on Value Realized Name Exercise ($) Exercisable Unexercisable Exercisable Unexercisable Augustine Y. Cheung 50,000 $45,310 400,000 0 $272,480 0 Verle D. Blaha 50,000 $45,310 400,000 0 $272,480 0 John Mon 0 0 400,000 0 $272,480 0 Charles C. Shelton 0 0 400,000 0 $272,480 0 Robert F. Schiffman 0 0 100,000 0 $ 68,120 0 =========================== =============== =============== ============== ============== ============== ===============
Long-Term Incentive Plan Awards in 1996 The registrant has no "long-term incentive plan". Future Benefits or Pension Plan Disclosure in 1996 The Company has no such benefit plans. Director Compensation During 1996, the Company paid to each outside board member $500 per year. Each director receives an automatic grant of 2,000 shares of Common Stock for each year served. Employment Contracts and Termination of Employment and Change-In-Control Arrangements Verle D. Blaha. On August 15, 1996, the Company entered into a letter agreement with New Opportunities, Ltd. ("NOL") a company controlled by Mr. Blaha. Pursuant to the Agreement, Mr. Blaha agreed to become a director, President and Chief Executive Officer of the Company in exchange for the Company paying NOL the following: 1. Payment of $25,000. 2. Payment of $175.00 per hour, to a maximum of 8 hours per day, 40 hours per week regardless of actual time spent. 3. Reimbursement of business expenses and providing residential accommodations in Maryland and all utilities. 4. Options to acquire 400,000 shares of the Company's Common Stock for a term ending August 13, 2004 at a price of $.41. 5. Full indemnity by the Company. 6. The Agreement terminates January 27, 1997, but the Company and Mr. Blaha anticipate that the employment relationship will continue on similar terms. Other 29 Stock Option Plans The Company does not currently have any Stock Option Plans. The Company anticipates adopting such a plan during fiscal year 1997. Report of the Compensation Committee on Executive Compensation The Company does not presently have a Compensation Committee, but the Company contemplates formation of a Compensation Committee during the fiscal year 1997. The Compensation Committee of the Board of Directors will be composed of two non-employee directors. The Committee will be responsible for establishing and administering the compensation policies applicable to the Company's officers and key personnel. Stockholder Return Performance Graph Federal regulation requires that inclusion of a line graph comparing cumulative total shareholder return on Common Stock with the cumulative total return of (1) NASDAQ Combined Index and (2) a published industry or line-of-business index. The performance comparison appears below. The Board of Directors and its Compensation Committee recognize that the market price of stock is influenced by many factors, only one of which is Company performance. The stock price performance shown on the graph is not necessarily indicative of future price performance. [GRAPHIC OMITTED] 30 ITEM 12. Security Ownership of Certain Beneficial Owners and Management The following table sets forth information regarding shares of voting securities of the Company beneficially owned as of September 30, 1996 by: (i) each person known by the Company to beneficially own 5% or more of the outstanding voting securities, (ii) by each director or nominee for director, (iii) by each person named in the summary compensation table and (iv) by all officers and directors as a group. Name and Addresses Percentage of Officers, Directors and Amount of of Voting Principal Shareholders Common Stock* Securities*(1) - ----------------------------- --------------- --------------- Augustine Y. Cheung(2)(3) 10220-I Old Columbia Road Columbia, MD 21046-1705 6,669,408 26.46 Verle D. Blaha(2)(5)(6) 14 Sunset Lane North Oaks, MN 55127 1,053,186 4.18 John Mon(2)(7) 10220-I Old Columbia Road Columbia, MD 21046-1705 566,418 2.25 Robert F. Schiffmann(2)(8) 149 West 88th Street New York, NY 10024 310,684 1.23 Joseph M. Colino(2) 1952 Cardinal Lake Drive Cherry Hill, NJ 08003 5,500 ** Charles C. Shelton(2)(3) 9160 Rumsey Road, Suite B-1 Columbia, Maryland 21045-1928 665,250 2.64 Revlon Group, Incorporated and its wholly-owned subsidiary PPI Four Corp. 767 Fifth Avenue New York, New York 10153 1,500,000 5.95 Yue Soon Limited 287-291 Des Vouex Rd. Central, 21st Floor Hong Kong 1,600,000 6.34 Gao Yu Wen Zhongshan Economic Committee Sun Wen Road E. Shigizhongshan Guangdong, China 4,030,000(3) 15.99 Executive Officers and Directors as a group (6 individuals) 9,270,446 36.78 ===================================== ================= ================ * Assumes exercise of all exercisable options held by listed security holders which can be exercised within 60 days from September 30, 1996. ** Less than 1%. 31 (1) Except as noted, the above table does not give effect to an aggregate of approximately 4,670,715 shares of Common Stock underlying outstanding stock options and warrants held by persons not reflected in this table. Outstanding options and warrants entitle the holders thereof to no voting rights. (2) Director or Executive Officer. (3) Includes 400,000 shares underlying an option exercisable commencing May 16, 1995 through May 16, 2001 at $.35 per share. (4) Since the end of the Fiscal Year, the Company has repurchased from Mr. Gao 16,000,000 shares in exchange for the Company's 9.5% interest in Aestar. Accordingly, Mr. Gao presently owns only 4,030,000 shares. (5) Does not include 42,000 Common Shares owned by Luveral Blaha, Mr. Blaha's wife. Mr. Blaha disclaims any beneficial ownership with respect to said Common Shares. The Company believes Luveral Blaha owns 42,000 Common Shares. (6) Includes 400,000 shares underlying an option to New Opportunities, Ltd, an affiliate of Mr. Blaha's. The option exercisable commencing August 15, 1996 through August 14, 2004 at $.41 per share. (7) Includes 400,000 shares underlying an option to Mr. Mon exercisable commencing May 16, 1996 through May 16, 2001 at $.35 per share. (8) Includes 100,000 shares underlying an option to Mr. Schiffmann exercisable commencing May 16, 1996 through May 16, 2001 at $.35 per share. Also includes 1,500 shares held by Marilyn T. Schiffmann, his wife; 725 shares held as custodian for Erica M. Payne, UGMA NY; and 725 shares held as custodian for Robert F. Schiffmann Jr. UGMA NY. ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS SMC Contract. On May 28, 1996, the Company entered into a consulting agreement with Stearns Management Company ("SMC"). Warren C. Stearns, a nominee to the Board of Directors, is President of SMC. Pursuant to the Agreement, SMC has an exclusive arrangement to render services involving solicitation of outside capital, restructuring the Company, business plans, marketing, election of advisory personnel, adding additional directors and sale of stock by insiders. The agreement is terminable upon 10 days written notice or otherwise stays in effect for one year or until a registration statement covering a public offering of the Company's securities is declared effective by the SEC. In exchange for such services, SMC was paid $57,000 and the Company (i) granted to SMC a transferable warrant to purchase 168,292 shares of Common Stock (which have been assigned to Amalgam and (ii) agreed to grant to assignees of SMC a warrant to purchase, in the aggregate, a five percent (5%) interest in the equity of the Company as of the next registered public offering of Common Stock of the Company. The warrants, all of which are exercisable at $0.41 per share, contain anti-dilution provisions and are exercisable for five years and renewable for an additional five years. Mr. Stearns is paid a per diem expense of $1,500 per day or $190 per hour and reimbursement for expenses at cost plus 20%. Nace Resources Contract. On August 1, 1996, the Company entered into a Consulting Agreement with Nace Resources, Inc. ("NRI"), an affiliate of Mr. Fuchs, chairman of the Advisory Board. The agreement requires Mr. Fuchs, as designated consultant, to consult and advise the Company with respect to the development and application of the Company's products and proprietary 32 technology. The term of the agreement is for a one year period with an additional renewal period. The Company paid $75,000 to NRI and commencing August 1, 1996, shall pay $20,000 per month. NRI has agreed to defer $5,000 per month until the Company receives $5,000,000 of gross proceeds from an offering of the Company's stock. In addition, the Company will reimburse NRI for expenses. In addition to the compensation due under the terms of the consulting agreement, the Company has agreed to grant to NRI warrants to purchase 397,619 shares of Common Stock, subject to adjustment, at an exercise price of $0.41 per share for consulting services. In addition, the Company has granted to NRI warrants to purchase approximately 195,122 shares of Common Stock at an exercise price of $0.41 per share in exchange for providing certain financial advisory services to the Company in 1996. Finally, Mr. Fuchs will be entitled to additional warrants to purchase shares of Common Stock after completion of the next offering. The number of shares granted will depend on the offering price of the Common Stock. Promissory Notes. From 1987 through 1995, the Company borrowed money from related parties. In 1996, the Company formalized such borrowings by executing promissory notes to the following related parties: An unsecured term note, dated June 30, 1994, payable to Dr. Augustine Cheung, accruing interest at the rate of ten percent (10%) per annum, in the amount of $42,669. The principal and accrued interest shall be due and payable on its maturity date on June 30, 1998. An unsecured term note, dated January 26, 1987, payable to Dr. Augustine Cheung, accruing interest at the rate of twelve percent (12%) per annum, in the amount of $78,750. The principal and accrued interest shall be due and payable on its maturity date on January 26, 1998. A demand note, dated May 16, 1988, payable to Yu Shai Lai, a relative of Dr. Cheung, accruing interest at the rate of twelve percent (12%) per annum, in the amount of $36,041. A demand note, dated October 2, 1990, payable to Ada Lam, a former employee, accruing interest at the rate of twelve percent (12%) per annum, in the amount of $28,502. The Company also may have the obligation to execute a promissory note payable to Charles C. Shelton in the face amount of $50,000. The Company has certain offsets available against Mr. Shelton so the final amount to be due under this promissory note is still under negotiation. Settlement Agreement. On October 28, 1996, the Company entered into a Settlement Agreement with William O. Cave, a former director of the Company. Under the terms of the Settlement Agreement, the Company paid $30,000 to Mr. Cave and agrees to pay an additional $194,825. The Company is to use its best efforts to pay this sum on or before February 28, 1997. If the balance owing is not paid on or before February 28, 1997, then the outstanding balance shall accrue interest at the rate of 15% per annum. In addition, the Company agreed to grant to Mr. Cave warrants to purchase 56,340 shares of Common Stock at an exercise price of $.50 per share. Rescission Agreement. On February 16, 1995, Gao Yu Wen executed a subscription agreement with the Company to purchase 20,000,000 shares of Common Stock at $.50 per share or $10,000,000. The price was paid by paying $2,000,000 cash and property transferring to the Company 9.5% of the outstanding equity of Aestar Fine Chemical Company ("Aestar"). On June 6, 1996 the Company and Gao entered a Redemption Agreement wherein the Company renounced any interest in Aestar and Gao agreed that upon the Company delivery $2,200,000 to Gao he would return 33 return the 20,000,000 shares of the Company. The promise to pay $2,200,000 by November 30, 1996 was secured by all 20,000,000 shares. On October 23, 1996, the Company and Mr. Gao executed a Amendment by which the terms of the Redemption Agreement were modified. Under the terms of the First Amendment, Mr. Gao agreed to immediately convey to the Company certificates representing 16 million shares of Common Stock. The $2,200,000 payment was reduced to $2,160,000 and the timing was extended until December 31, 1996, with an additional three months period at a penalty of 3/4% per month. On October 23, 1996, Mr. Gao conveyed the 16 million shares to the Company. On April 26, 1995, the Company entered into an Investment Agreement with Gao whereby the Company transferred $700,000 to Gao to invest as agent of the Company at the rate of no less than 17% per annum. Gao repaid $190,000 by September 30, 1996. The remaining amount has been forgiven as part of the Redemption Agreement. Rescission of Ardex Acquisition. On or about March 31, 1995, the Company invested $400,000 in Ardex Equipment, LLC ("Ardex") and paid $50,000 to Charles C. Shelton and Joseph Colino, who were then directors of the Company, in exchange for a 17.1111% interest in Ardex. In 1996, the Company received $50,000 distribution from Ardex. On August 2, 1996, the Company and Ardex entered into a binding Letter of Intent rescinding the Company's investment in Ardex (the "Rescission"). Pursuant to the Rescission, the Company was to receive a 5-year negotiable promissory note for $350,000 bearing interest at 8% per annum. Interest only is paid until the principal becomes due. Principal is due upon the first of the following events to occur: (i) completion of a public or private offering by Ardex of $1,500,000 or more; (ii) 90 days following the year end in sales have been or exceed $3,000,000; (iii) Ardex having a cash balance of $800,000 or more from operations; or (iv) five years from the date of the note. The note is to be secured by a limited guarantee of Charles C. Shelton, Joseph Colino and John Kohlman only to the extent of their interest in Ardex and their options in the Company. In addition, Mr. Shelton is to execute a promissory note for $15,000; Mr. Colino is to execute a note for $22,500; and Mr. Kohlman is to execute a note for $12,000. These notes will be secured by the same security as the Ardex note. Under the terms of the Rescission, all of the previously mentioned notes and ancillary documents were to have been executed on or before August 31, 1996, but none have been delivered to the Company as of the date hereof. The Company is continuing with its efforts to obtain the documents contemplated by the Rescission. Legal Fees. Charles C. Shelton, Esq. rendered legal services to the Company throughout the year ended September 30, 1996. Mr. Shelton billed the Company fees totalling $118,204, $92,052 of which was billed by Charles C. Shelton, $10,000 of which was for services as an employee of Company, and $16,152 for expenses. PART IV ITEM 14. EXHIBITS, FINANCIAL STATEMENTS, SCHEDULES AND REPORTS ON FORM 8-K (a)(1) Index to Financial Statements and Supplemental Schedules Title of Documents Page No. Independent Auditors' Report F-1 34 Balance Sheet F-2 Statements of Operations F-4 Statements of Changes in Stockholders' Equity F-5 Statements of Cash Flows F-6 Notes to Financial Statements F-8 (a)(2) No schedules are provided because of the absence of conditions under which they are required. (b) Reports on Form 8-K. The following reports on Form 8-K were filed by the Company during the last quarter of the period covered by this report. On August 28, 1996, the Company filed a report on Form 8-K announcing the execution of the an exclusive license agreement with MMTC. On September 6, 1996, the Company filed a report on Form 8-K announcing the appointment of Verle D. Blaha as acting President and Chief Executive Officer of the Company. On October 23, 1996, the Company filed a report on Form 8-K announcing the redemption of 16,000,000 shares of the Company's Common Stock from Mr. Gao Yu Wen. The Company filed no other reports on Form 8-K during the fourth quarter of its fiscal year ended December 31, 1996. (c) Exhibits. The following documents are included as exhibits to this report: Exhibit Description Number 3.1 Articles of Incorporation of the Company as filed May 19, 1982 with the State of Maryland Department of Assignments and Taxation.(1) 3.1.1 Articles of Amendment and Restatement to the Articles of Incorporation of the Company as filed June 21, 1984 with the State of Maryland Department of Assignments and Taxation.* 3.1.2 Articles of Amendment to the Aritcles of Incorporation of the Company as filed December 14, 1994 with the State of Maryland Department of Assignments and Taxation* 3.2.1 Amendment to the By-laws of the Company adopted December 9, 1994* 35 Exhibit Description Number 9.1 Irrevocable Proxy between Augustine Y. Cheung, as representative of the Company and Gao Yu Wen regarding 20,000,000 shares of Common Stock dated June 6, 1996 (pursuant to the Redemption Agreement, the number of shares governed by the proxy has been reduced to 4,000,000)* 10.1 Patent License Agreement between the Company and Massachusetts Institute of Technology dated June 1, 1996 (Confidential Treatment Requested)* 10.2 License Agreement between the Company and MMTC, Inc. dated August 23, 1996 (Confidential Treatment Requested)* 10.3 Letter Agreement between the Company and H.B.C.I., Inc. dated September 17, 1996* 10.4 Letter Agreement between the Company and Herbst, Lazar, Bell, Inc. dated october 4, 1996* 10.5 Agreement between the Company and Stearns Management Company dated May 28, 1996* 10.6 Consulting Agreement between the Company and NACE Resources, Inc. dated August 1, 1996* 10.7 Settlement Agreement between the Company and William O. Cave, dated October 28, 1996* 10.8 Redemption Agreement between the Company and Mr. Sun Shou Y. representative of Mr. Gao Yu Wen, dated June 6, 1996 and Letter of Intent between the parties dated May 27, 1996* 10.9 Amendment among the Company, Sun Shau Yi, Ou Yang An, Gao Yu Wen, dated October 23, 1996* 10.10 Binding Letter of Intent Concerning Rescission of Cheung Laboratories, Inc. Investment in Ardex Equipment, LLC between the Company and Ardex dated August 2, 1996* 10.11 Letter Agreement between the Company and New Opportunities, Ltd., an affiliate of Verle D. Blaha, dated August 15, 1996* 10.12 Unsecured Promissory Note, dated June 30, 1994, in the amount of $42,669 and bearing interest at ten percent per annum, payable to Augustine Cheung* 10.13 Unsecured Promissory Note, dated January 26, 1987, in the amount of $78,750 and bearing interest at the rate of twelve percent, payable to Augustine Cheung* 10.14 Demand Promissory Note, dated October 2, 1990, in the amount of $28,502 and bearing interest at the rate of twelve percent, payable to Ada Lam* 10.15 8% Senior Secured Convertible Note* 10.16 Registration Rights Agreement* 10.17 Warrant to Purchase Shares of Common Stock of Cheung Laboratories, Inc.* 10.18 Certificate of Warrant to Purchase Common Stock of Cheung Laboratories, Inc. dated June 1, 1996* 10.19 Certificate of Warrant to Purchase Common Stock of Cheung Laboratories, Inc. dated May 28, 1996* 21.1 Subsidiaries of the Registrant 23.1 Consent of Stegman & Company, independent public accountants of the Company* 27.1 Financial Data Schedule - ------------------ * Filed herewith (1) Pursuant to Rule 12b-32, this exhibit is incorporated herein by reference to the exhibits filed with respect to the Company's Registration Statement on Form S-1, as amended, originally filed on October 17, 1984, Registration No. 2-93826-W. 36 SIGNATURES Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. CHEUNG LABORATORIES, INC. December __, 1996 By /s/ Verle D. Blaha --------------------- Verle D. Blaha Chief Executive Officer Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed by the following persons on behalf of the Registrant and in the capacities and on the dates indicated: Signature Title Date /s/ Verle D. Blaha Chief Executive Officer, December __, 1996 - -------------------- President and Director Verle D. Blaha /s/ John Mon General Manager, Treasurer December __, 1996 - --------------------- John Mon /s/ Dr. Augustine Y. Cheung Chairman December __, 1996 - ---------------------------- Dr. Augustine Y. Cheung /s/ Robert F. Schiffmann Director December __, 1996 - ------------------------- Robert F. Schiffmann /s/ Charles C. Shelton Director December __, 1996 - ------------------------- Charles C. Shelton /s/ Joseph M. Colino Director December _, 1996 - ------------------------- Joseph M. Colino 37 CHEUNG LABORATORIES, INC. REPORT ON AUDITS OF FINANCIAL STATEMENTS FOR THE YEARS ENDED SEPTEMBER 30, 1996, 1995 AND 1994 No extracts from this report may be published without our written consent Stegman & Company TABLE OF CONTENTS INDEPENDENT AUDITORS' REPORT FINANCIAL STATEMENTS Page Balance Sheets 1 - 2 Statements of Operations 3 Statements of Changes in Stockholders' Equity 4 Statements of Cash Flows 5 - 6 NOTES TO FINANCIAL STATEMENTS 7 - 15 INDEPENDENT AUDITORS' REPORT The Board of Directors and Stockholders Cheung Laboratories, Inc. Columbia, Maryland We have audited the accompanying balance sheets of Cheung Laboratories, Inc., as of September 30, 1996 and 1995, and the related statements of operations, changes in stockholders' equity, and cash flows for each of the three years in the period ended September 30, 1996. These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on these financial statements based on our audits. We conducted our audits in accordance with generally accepted auditing standards. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion. In our opinion, the financial statements referred to above present fairly, in all material respects, the financial position of Cheung Laboratories, Inc., as of September 30, 1996 and 1995, and the results of its operations and its cash flows for each of the three years in the period ended September 30, 1996 in conformity with generally accepted accounting principles. The accompanying financial statements have been prepared assuming that the Company will continue as a going concern. As discussed in Note 2 of the financial statements, the Company has suffered recurring losses from operations, which raise substantial doubt about its ability to continue as a going concern. Management's plans regarding those matters are also described in Note 2. The financial statements do not include any adjustments that might result from the outcome of this uncertainty. Towson, Maryland November 1, 1996 F-1 CHEUNG LABORATORIES, INC. BALANCE SHEETS SEPTEMBER 30, 1996 AND 1995 ASSETS
1996 1995 --------------------------------- CURRENT ASSETS: Cash $ 246,931 $ 7,238 Accounts receivable (net of an allowance for doubtful accounts of $20,770 and $56,659 in 1996 and 1995, respectively) 154,335 137,101 Interest receivable - related parties 5,333 - Inventories 270,952 301,279 Prepaid expenses 1,669 7,669 Other current assets 26,755 25,551 ----------- ----------- Total current assets 705,975 478,838 ----------- ----------- PROPERTY AND EQUIPMENT - at cost: Furniture and office equipment 176,541 168,777 Laboratory and shop equipment 62,228 74,733 ----------- ------------ 238,769 243,510 Less accumulated depreciation 205,766 197,897 ----------- ----------- Net value of property and equipment 33,003 45,613 ----------- ------------ OTHER ASSETS: Investment in Aestar Fine Chemical Company - at cost 8,000,000 8,000,000 Investment in Ardex Equipment, L.L.C. - at equity - 482,991 Funds held under investment contract 40,000 650,000 Notes receivable - Ardex Equipment, L.L.C. 400,000 - Patent licenses (net of accumulated amortization of $37,328 and $26,650 in 1996 and 1995, respectively) 142,622 53,300 ----------- ------------ Total other assets 8,582,622 9,186,291 ----------- ----------- TOTAL ASSETS $9,321,600 $9,710,742 ========== ==========
See accompanying notes. F-2 LIABILITIES AND STOCKHOLDERS' EQUITY
1996 1995 -------------------------------- CURRENT LIABILITIES: Accounts payable - trade $ 197,190 $ 228,360 Notes payable - related parties, current portion 331,712 463,685 Accrued interest payable - related parties 339,660 343,265 Accrued interest payable - other 8,417 5,264 Accrued compensation 186,459 352,498 Accrued professional fees 76,352 1,500 Other accrued liabilities 100,905 69,871 Deferred revenues 112,031 115,531 ------------- ------------ Total current liabilities 1,352,726 1,579,974 ------------ ------------ LONG-TERM LIABILITIES: Note payable - related party, due after one year 8,000 2,000 Notes payable - private placement 1,205,000 - ------------ ---------- Total long-term liabilities 1,213,000 2,000 ------------ -------------- Total liabilities 2,565,726 1,581,974 ------------ ------------ STOCKHOLDERS' EQUITY: Capital stock - $.01 par value; 51,000,000 shares authorized, 41,206,360 and 39,207,664 issued and outstanding for 1996 and 1995, respectively 412,063 392,076 Additional paid-in capital 18,555,444 18,014,854 Accumulated deficit (12,211,633) (10,278,162) ------------ ------------ Total stockholders' equity 6,755,874 8,128,768 ------------ ------------ TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY $ 9,321,600 $ 9,710,742 =========== ===========
F-3 CHEUNG LABORATORIES, INC. STATEMENTS OF OPERATIONS FOR THE YEARS ENDED SEPTEMBER 30, 1996, 1995 AND 1994
1996 1995 1994 -------------------------------------------------------------- REVENUES: Hyperthermia sales and parts $ 134,006 $ 157,618 $1,025,651 Consulting service and repairs - - 60,742 Returns and allowances (60,000) - - ----------- -------------- ---------- Total revenues 74,006 157,618 1,086,393 COST OF SALES 64,406 67,350 494,946 ----------- ------------ ----------- GROSS PROFIT 9,600 90,268 591,447 ----------- ------------ ----------- OPERATING EXPENSES: Selling, general and administrative 1,338,370 1,369,845 704,295 Research and development 94,012 18,546 202,569 ----------- ------------ ----------- Total operating expenses 1,432,382 1,388,391 906,864 ----------- ------------ ----------- (LOSS) INCOME FROM OPERATIONS (1,422,782) (1,298,123) (315,417) COSTS INCURRED IN DEVELOPING COSMETICS DIVISION (471,000) - - EQUITY IN LOSS OF ARDEX EQUIPMENT, L.L.C. - (17,009) - GAIN ON DISPOSITION OF INVESTMENT IN ARDEX EQUIPMENT, L.L.C. 17,009 - - OTHER INCOME 28,808 8,620 170,997 INTEREST EXPENSE (85,506) (90,805) (184,700) ----------- ------------ ----------- LOSS BEFORE INCOME TAXES AND EXTRAORDINARY ITEM (1,933,471) (1,397,317) (329,120) INCOME TAXES - - (128,272) -------------- -------------- ----------- LOSS BEFORE EXTRAORDINARY ITEM (1,933,471) (1,397,317) (200,848) EXTRAORDINARY ITEM - Gain due to forgiveness of debt (net of tax of $128,272 for 1995) - - 591,728 -------------- ------------- ----------- NET (LOSS) INCOME $(1,933,471) $(1,397,317) $ 390,880 =========== =========== ========== EARNINGS PER COMMON SHARE: Loss before extraordinary item $(.049) $(.060) $(.012) Extraordinary item .000 .000 .035 ------- ------- ------- Net (loss) income $(.049) $(.060) $ .023 ====== ====== ======
See accompanying notes. F-4 CHEUNG LABORATORIES, INC. STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY FOR THE YEARS ENDED SEPTEMBER 30, 1996, 1995 AND 1994
Additional Common Stock Paid-In Shares Amount Capital Deficit Total ------------------------------------------------------------------------------- Balances at October 1, 1993 15,900,000 $159,000 $ 6,766,704 $ (9,271,725) $(2,346,021) Reissuance of retired shares 219,251 2,192 - - 2,192 Issuance of 2,504,400 shares of common stock as payment of indebtedness and expenses 2,504,400 25,044 1,261,363 - 1,286,407 Net income - - - 390,880 390,880 --------------- ------------ --------------- ------------- ------------- Balances at September 30, 1994 18,623,651 186,236 8,028,067 (8,880,845) (666,542) Sale of common stock 20,003,000 200,030 9,801,470 - 10,001,500 Issuance of 581,013 shares of common stock as payment of indebtedness and expenses 581,013 5,810 185,317 - 191,127 Net loss - - - (1,397,317) (1,397,317) -------------- ----------- --------------- -------------- ------------- Balances at September 30, 1995 39,207,664 392,076 18,014,854 (10,278,162) 8,128,768 Sale of common stock 1,299,711 12,997 406,513 - 419,510 Issuance of 698,985 shares of common stock as payment of indebtedness and expenses 698,985 6,990 134,077 - 141,067 Net loss - - - (1,933,471) (1,933,471) -------------- ------------ --------------- ------------- ------------ Balances at September 30, 1996 41,206,360 $412,063 $18,555,444 $(12,211,633) $ 6,755,874 ========== ======== =========== ============= ===========
See accompanying notes. F-5 CHEUNG LABORATORIES, INC. STATEMENTS OF CASH FLOWS FOR THE YEARS ENDED SEPTEMBER 30, 1996, 1995 AND 1994
1996 1995 1994 ---------------------------------------------------------------------------------------------------------------------- CASH FLOWS FROM OPERATING ACTIVITIES: Net (loss) income $(1,933,471) $(1,397,317) $390,880 Noncash items included in net (loss) income: Funds held under investment contract used for cosmetic division expenses 471,000 - - Depreciation and amortization 18,545 13,922 13,043 Bad debt expense 51,397 180,539 11,114 Gain on disposition of investment in Ardex Equipment, L.L.C. (17,009) - - Equity in loss of Ardex Equipment, L.L.C. - 17,009 - Forgiveness of debt - - (720,000) Common stock issued for operating expenses 9,000 108,926 21,320 Net changes in: Accounts receivable (68,631) 208,680 (80,423) Inventories 45,327 (80,478) 167,783 Accrued interest receivable (5,333) - - Prepaid expenses 6,000 (5,875) 5,875 Other current assets (1,204) (25,551) - Accounts payable - trade (31,170) 15,299 30,842 Accrued interest payable - related parties 53,462 84,889 163,609 Accrued interest payable - other 3,153 (41,163) (13,133) Accrued compensation (166,039) 51,423 174,802 Accrued professional fees 74,852 (174,606) 6,848 Other accrued liabilities 31,033 24,803 (124,497) Deferred revenues (3,500) 105,531 (2,117) ------------ ------------ ---------- Net cash (used) provided by operating activities (1,462,588) (913,969) 45,946 ----------- ------------ --------- CASH FLOWS FROM INVESTING ACTIVITIES: Rescission of investment in Ardex Equipment, L.L.C. 100,000 - - Purchases of patent licenses (100,000) - - Investment in Ardex Equipment, L.L.C. - (500,000) - Purchase of property and equipment (10,256) (5,183) (3,384) Funds invested - investment contract - (700,000) - Funds returned - investment contract 139,000 50,000 - ------------ ------------ --------- Net cash provided (used) by investing activities 128,744 (1,155,183) (3,384) ------------ ------------- --------- CASH FLOWS FROM FINANCING ACTIVITIES: Proceeds from notes payable 1,205,000 - - Payment on notes payable - related parties (48,973) - - Payment on notes payable (2,000) (24,000) - Proceeds of stock issuances 419,510 2,001,500 - ------------ ------------ ----------- Net cash provided by financing activities 1,573,537 1,977,500 - ------------ ------------ ----------- NET INCREASE (DECREASE) IN CASH 239,693 (91,652) 42,562 CASH AT BEGINNING OF YEAR 7,238 98,890 56,328 ------------- ------------ --------- CASH AT END OF YEAR $ 246,931 $ 7,238 $ 98,890 =========== ============ ========
See accompanying notes F-6 Cheung Laboratories, Inc. Statements of Cash Flows (Continued) For the Years Ended September 30, 1996, 1995 and 1994
1996 1995 1994 -------------------------------------------- Schedule of noncash investing and financing transactions: Stock issued as debt and accrued interest repayment: Notes payable $75,000 $50,000 $959,230 ======= ======= ======== Accounts payable $ - $ - $ 24,000 ========== ========= ======== Accrued interest $57,067 $32,200 $291,666 ======= ======= ======== Schedule of noncash investing and financing activities: Proceeds of notes payable: Increase in notes payable $ - $25,223 $ 50,000 Offset of accounts payable - (25,223) (50,000) --------- -------- --------- Net cash received $ - $ - $ - ========== ========= =========== Payment on notes payable: Decrease in notes payable $25,223 $24,000 $ - Offset of accounts receivable (25,223) - - --------- ---------- ---------- Net cash paid $ - $24,000 $ - ========== ======= ========== Acquisition of a 9.5% interest in the Aestar Fine Chemical Company in exchange for 16,000,000 shares of common stock $ - $8,000,000 $ - ========== ========== ========= Rescission of investment in Ardex Equipment, L.L.C. in exchange for notes receivable $400,000 $ - $ - ======== ========= ========= Cash paid during the year for: Interest $45,000 $47,079 $33,991 ======= ======= ======= Income taxes $ - $ - $ - ========= ========= =========
See accompanying notes. F-7 CHEUNG LABORATORIES, INC. NOTES TO FINANCIAL STATEMENTS FOR THE YEARS ENDED SEPTEMBER 30, 1996, 1995 AND 1994 1. DESCRIPTION OF BUSINESS Cheung Laboratories, Inc. (the "Company") is in the business of providing hyperthermia products for medical applications. The Company markets its products internationally and was classified as a development stage company until October 1, 1989. In an effort to diversify the Company's operations and investments, the Company acquired an interest in the Aestar Fine Chemical Company ("Aestar") in 1995. Aestar is located in the City of Zhongshan, China, and operates in the cosmetic and fine chemicals business. The Company's previous business plan relating to this investment was to use the dividend income it anticipated to receive from Aestar for development of cosmetics and fine chemical joint ventures. Subsequently, in 1996 the Company has reached an agreement with Aestar to rescind this agreement. Additionally, the Company has rescinded its interest in Ardex Equipment, L.L.C., (Ardex) which operates in the industrial plumbing equipment business. 2. GOING CONCERN UNCERTAINTY The accompanying financial statements have been prepared in conformity with generally accepted accounting principles, which contemplates continuation of the Company as a going concern. However, the Company has sustained substantial operating losses in recent years. In addition, the Company has used substantial amounts of working capital in its operations. Further, at September 30, 1996, current liabilities exceed current assets by $646,754. The Company has defaulted on a substantial majority of its loan agreements because cash flow is insufficient to make principal and interest payments on a timely basis. In view of these matters, realization of a major portion of the assets in the accompanying balance sheet is dependent upon continued operations of the Company, which in turn is dependent upon the Company's ability to meet its financing requirements and the success of its future operations. During 1996, in an attempt to focus its resources on its core business, the Company rescinded its investment in Ardex and entered into an agreement to rescind its investment in Aestar. The rescission of Aestar has been disclosed in the notes to the financial statements as a subsequent event and it had a significant impact on the Company's financial condition and stockholder's equity. See note 14 for a further impact of the rescission. Despite these efforts, working capital deficits continue as the majority of cash funds raised during 1996 was in the form of the issuance of capital stock and deft financing through private placement. F-8 3. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Accounts Receivable Accounts receivable consist of the following: 1996 1995 -------------------------- Trade receivables $138,465 $192,444 Related party receivables: Microfocus 1,910 1,316 Ardex Equipment, L.L.C. 34,730 - Allowance for doubtful accounts (20,770) (56,659) --------- --------- $154,335 $137,101 ======== ======== Inventories Inventories are stated at the lower of cost or market. Cost is determined using the average cost matters. Inventories are comprised of the following at September 30: 1996 1995 ----------------------------- Materials $169,752 $220,553 Work-in-process 46,062 52,449 Finished products 55,138 28,277 --------- --------- $270,952 $301,279 ======== ======== Property and Equipment Depreciation is computed using the straight-line method for financial reporting and accelerated methods for tax reporting purposes. Depreciation is computed over the estimated useful lives of the assets as follows: Furniture and office equipment 5 years Laboratory and shop equipment 5 years Depreciation expense for the years ended September 30, 1996, 1995 and 1994 was $7,868, $7,259 and $6,380 respectively. Major renewals and betterments are capitalized at cost, and ordinary repairs and maintenance are charged against operations as incurred. Related costs and accumulated depreciation are eliminated from the accounts upon disposition of an asset and the resulting gain or loss is reflected in the statement of operations and accumulated deficit. F-9 Investments - at Equity Investments in which the Company has a 20% to 50% interest or otherwise exercises significant influence are carried at cost, adjusted for the Company's proportionate share of their undistributed earnings or losses. Otherwise, investments are carried at cost and dividend income is recognized as earned in other income. Patent Licenses The Company has purchased several licenses to use the rights to patented technologies. Patent licenses are amortized straight-line over the remaining patent life. Amortization expense for the years ended September 30, 1996, 1995 and 1994 was $10,678, $6,663 and $6,663, respectively. Revenue Recognition Revenue is recognized when systems, products or components are shipped and when consulting services are rendered. Deferred revenue includes customer deposits received on contingent sale agreements. Research and Development Research and development costs are expensed as incurred. Equipment and facilities acquired for research and development activities which have alternative future uses are capitalized and charged to expense over their estimated useful lives. Net Income (Loss) Per Share Net income (loss) per share is computed based upon common shares outstanding during the periods after giving retroactive effect to all stock splits and conversions. Net income (loss) is based on the actual weighted average number of common shares outstanding during the period of 39,499,650 for 1996, 23,466,070 for 1995, and 16,912,978 for 1994. Use of Estimates The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. F-10 4. PROSPECTIVE ACCOUNTING PRONOUNCEMENTS Accounting for the Impairment of Long-Lived Assets In March 1995, the Financial Accounting Standards Board issued Statement of Financial Accounting Standards No. 121, Accounting for the Impairment of Long-Lived Assets and for Long-Lived Assets to Be Disposed Of, (SFAS No. 121). SFAS No. 121 requires that assets to be held and used be evaluated for impairment whenever events or circumstances indicate that the carrying value may not be recoverable. SFAS No. 121 also requires that assets to be disposed of be reported at the lower of cost or fair value less selling costs. Implementation of SFAS No. 121 is not expected to have a material impact on the results of operations or financial position. SFAS No. 121 is effective for the Company as of October 1, 1996. Accounting for Stock Based Compensation In October 1995, the Financial Accounting Standards Board issued Statement of Financial Accounting Standards No. 123, Accounting for Stock Based Compensation (SFAS No. 123), which is effective for the Company's year ending September 30, 1997. SFAS No. 123 allows companies either to continue to account for stock-based employee compensation plans under existing accounting standards or to adopt a fair-value-based method of accounting as defined in the new standard. The Company will follow the existing accounting standards for these plans, but will provide pro forma disclosure of net income and earnings per share as if the expense provisions of SFAS No. 123 had been adopted. Implementation of SFAS No. 123 is not expected to have a material impact on results of operations or financial condition. 5. RELATED PARTY TRANSACTIONS Notes Receivable - Related Parties Notes receivable due from related parties consist of the following: 1996 1995 ------------------------ Term note due August 31, 2001 from Ardex Equipment, L.L.C., accruing interest at 8% per annum. $350,000 $ - Term note due August 31, 2001 from the principals of Ardex Equipment, L.L.C., accruing interest at 8% per annum. 50,000 - --------- ------ $400,000 $ - ======== ===== F-11 Notes Payable - Related Parties Notes payable to related parties as of September 30 are comprised of the following:
1996 1995 ---------------------------- Term note payable to an officer and stockholder of the Company, accruing interest at 10% per annum. $ 42,669 $42,669 Term notes payable to an officer and stockholder of the Company, accruing interest at 12% per annum. 78,750 85,000 Demand note payable to relative of an officer and stockholder of the Company, accruing interest at 12% per annum. 36,041 36,041 Demand note payable to related party of remainder of funds borrowed for discontinued project, note bears interest at 12% per annum. 28,502 28,502 Term notes payable to interested parties of the Company accruing interest at 9 to 12% per annum. 103,750 223,473 Term note payable to stockholder of the Company accruing interest at 10% per annum payable in monthly payments of $2,000 for 25 months. The note is secured by all accounts receivable and general intangibles of the Company. 50,000 50,000 --------- --------- 339,712 465,685 Less current portion 331,712 463,685 --------- --------- Long-term portion - due in 1997 $ 8,000 $ 2,000 ======== =========
Interest accrued on these notes amounted to $339,660 and $343,265 at September 30, 1996 and 1995, respectively. Notes Payable - Private Placement During the year ended September 30, 1996, the Company issued $1,205,000 in senior secured convertible notes accruing interest at 8% per annum. The notes and accrued interest have priority over payment of any other indebtedness of the Company. On or after the next private offering, or upon maturity, whichever shall first occur, the holder may elect to convert the principal amount and any accrued interest into common stock at an option price of $.41 per share or can elect to be repaid from the proceeds of the private offering. The notes mature and become due the earlier of the next private offering or December 31, 1997. Interest accrued on these notes amounted to $1,262 at September 30, 1996. F-12 6. INVESTMENT IN AESTAR FINE CHEMICAL COMPANY - AT COST During 1995, the Company acquired a 9.5% equity interest in Aestar Fine Chemical Company (Aestar) in exchange for 16,000,000 shares of its common stock. The investment is carried at cost, as measured by the $.50 per share fair market value of the 16,000,000 shares of the Company's common stock. There were no dividends received during the years ended September 30, 1996 and 1995. The common stock of Aestar is not actively traded, therefore the market value of this investment is not readily determinable. The Company has subsequently entered into an agreement to rescind this investment. See note 14 to the financial statements. 7. INVESTMENT IN ARDEX EQUIPMENT, L.L.C. - AT EQUITY The Company purchased a 19.25% equity interest in Ardex Equipment, L.L.C. (Ardex) in 1995. The investment is carried at cost, adjusted for the Company's proportionate share of Ardex's loss from the purchase date through September 30, 1995. Ardex is not actively traded, therefore the market value of this investment is not readily determinable. During 1996, the Company entered into an agreement to rescind its investment in Ardex, the effects of which are reflected in these financial statements. 8. FUNDS HELD UNDER INVESTMENT CONTRACT During 1995, the issuance of 20,000,000 shares of common stock to Mr. Gao Yu Wen enabled Mr. Gao to obtain a majority interest in the Company. Mr. Gao has essentially recapitalized the Company through this investment of $2,000,000 in cash and an $8,000,000 interest in Aestar. Pursuant to the terms of an investment agreement between the Company and Mr. Gao, the Company has invested surplus working capital funds in Hong Kong and China. At September 30, 1995, the Company had drawn $50,000 from the account, reducing the balance to $650,000. The balance as of September 30, 1996 has been further reduced to $40,000 to reflect $471,000 in costs incurred by Mr. Gao while developing a cosmetic division in Hong Kong on behalf of the Company, per an agreement, subsequently entered into to rescind the investment in Aestar Fine Chemical Company. 9. INCOME TAXES Income tax expense on (loss) income before extraordinary item differs from that computed at the federal income tax rate as follows: 1996 1995 1994 ------------------------------------ Income tax (benefit) at statutory rate (34%) $(657,380) $(475,088) $(128,272) Tax benefits not recognized 657,380 475,088 - --------- --------- -------- Income tax (benefit) expense $ - $ - $(128,272) =========== ========= ========= F-13 The tax benefit of net operating losses has been completely offset by a valuation allowance until the Company demonstrates earnings that would utilize the net operating loss carryforwards. The 1994 tax benefit resulted from utilizing net operating loss carryforwards as a result of a gain from the forgiveness of debt. At September 30, 1996, the Company has net operating loss carryforwards exceeding $10,000,000. These carryovers expire in various amounts through the period 1997 to 2011. Due to the sale of stock to the majority stockholder, the use of the net operating losses will be subject to an annual limitation. 10. COMMON STOCK During the year ended September 30, 1996, the Company issued 1,299,711 shares of common stock for $419,510, 689,985 shares were issued to extinguish debt, and 9,000 shares were issued as payments for various operating expenses. During the year ended September 30, 1995, the Company issued 20,000,000 shares of common stock in exchange for $2,000,000 in cash and $8,000,000 as a 9.5% interest in the Aestar from an investor. This transaction enabled the investor to obtain a majority interest in the Company's common stock. Additionally, the Company issued 3,000 shares of common stock for $1,500, 360,000 shares were issued to extinguish debt, and 221,000 shares were issued as payments for various operating expenses. During the year ended September 30, 1994, the Board of Directors and stockholders authorized the issuance of 35,100,000 additional shares of common stock. In addition 219,251 of retired shares were reissued, 2,174,800 shares were issued to extinguish debt and 329,600 shares were issued as employee wages. 11. STOCK OPTIONS AND WARRANTS The Company has granted stock options to certain employees on a periodic basis at the discretion of the Board of Directors. Options are granted at market value at the date of the grant and are immediately exercisable. Following is a summary of stock options as of and for the year ended September 30, 1996: For the year ended September 30, 1996: Share options granted 2,420,000 Price range of share options granted $.35 to $.41 Options exercised 100,000 Price range of shares exercised $.35 to $.41 As of September 30, 1996: Unexercised options outstanding 2,850,000 Weighted average exercise price $.34 Price range of outstanding options $.25 to $.41 F-14 As of September 30, 1996 there were warrants outstanding to purchase 3,320,715 shares of the Company's stock at a price of $.41 per share. The Company is also obligated to sell additional shares to certain individuals at a price based on future stock sales by the Company. 12. COMMITMENTS AND CONTINGENCIES Potential Liability and Insurance In the normal course of business, the Company may be subject to warranty and product liability claims on its hyperthermia equipment. Currently, the Company does not have a product liability insurance policy in effect although management does anticipate obtaining such coverage when adequate financial resources are available. The assertion of any product liability claim against the Company, therefore, may have an adverse effect on its financial condition. As of September 30, 1996, no product, warranty claims or other liabilities against the Company have been asserted. Warranty Reserve The Company warrants its hyperthermia units to be free from defects in material and workmanship under normal use and service for the period of one year from the date of shipment. Claims have been confined to basic repairs. Given the one year limitation of the warranty, management has elected to not set up a warranty reserve but, instead, to expense repairs as costs are incurred. 13. GAIN ON EXTINGUISHMENT OF DEBT The 1994 extraordinary gain of $591,728 (net of income taxes) results from the forgiveness of notes payable and accrued interest. 14. SUBSEQUENT EVENT - STOCK REDEMPTION On October 23, 1996, the Company, based on the provisions of an agreement reached on June 6, 1996, redeemed 16,000,000 shares of its common stock. The redemption provided for the Company to return its investment in Aestar Fine Chemical Company (valued at $8,000,000 on the Company's September 30, 1996 balance sheet) and to relinquish its rights to the funds held under investment contract ($40,000 at September 30, 1996) in order to affect the transaction. This transaction has a significant impact on the financial position, current ratios and stockholders' equity of the Company. If the foregoing transaction had occurred on or before September 30, 1996, total assets would have been reduced by $8,040,000, and stockholders' equity would have decreased by $8,040,000, resulting in a total negative stockholders' equity of $(1,284,126). As part of this agreement, the Company has the option to redeem an additional 4,000,000 shares owned by the Gao Group if a payment of $2,160,000 is made on or before December 31, 1996. This deadline may be extended until March 31, 1997 with the payment of an .75% monthly interest factor. F-15 15. SUBSEQUENT EVENT - PURCHASE OF PORTABLE X-RAY TECHNOLOGY On August 28, 1996, the Company entered into a termination agreement with Carlton Poor, a representative of Rainbow Ball Development Limited ("Rainbow Ball"). This agreement terminated a previous agreement with Rainbow Ball under which the Company was to share its portable x-ray business line. The termination agreement returns all rights to the portable x-ray business line to the Company in exchange for 355,757 shares of the Company's common stock to be issued in October 1996. 16. SUBSEQUENT EVENT - TERMINATION OF PURCHASE OPTION On April 26, 1995, the Company entered into an agreement to purchase a 50% interest in the United Aerosol and Home Products Company, LTD ("Unisol"), located in Zhongshan, China. Unisol is a specialty chemical and fine chemical aerosol packaging and bottle/can filling business. The purchase price was to be 20% of the appraised value of Unisol equipment, payable in the Company's common stock at the close of business on April 26, 1996. The Unisol acquisition was executed as part of the Gao transaction. This agreement was verbally terminated on October 23, 1996, at the same time that the Company executed the agreement by which the Company redeemed its stock from Mr. Gao. F-16

                          A.Y. CHEUNG ASSOCIATES, INC.

                      ARTICLES OF AMENDMENT AND RESTATEMENT


         A.Y.  CHEUNG  ASSOCIATES,  INC.,  a  Maryland  corporation,  having its
principal  office at 5026 Herzel Place,  Suite 101,  Beltsville,  Maryland 20705
(hereinafter  referred to as the  "Corporation"),  hereby certifies to the State
Department of Assessments and Taxation of Maryland that:

         FIRST:  The  Corporation  desires to amend and  restate  its Charter as
currently in effect as hereinafter  provided.  The provisions set forth in these
Articles of Amendment and  Restatement  are all the provisions of the Charter of
the Corporation as currently in effect.

         SECOND:  The Charter of the Corporation is hereby  amended  by striking
in their entirety Articles FIRST through EIGHTH,  inclusive, and by substituting
in lieu thereof the following:

     FIRST:  The  name of the  corporation  (which  is  hereinafter  called  the
"Corporation") is:

                            CHEUNG LABORATORIES, INC.

     SECOND: The purposes for which the Corporation is formed are as follows:

     (a) To carry on the business of a system engineering  company  specializing
in the application of  electromagnetic energy for  scientific,  industrial,  and






medical  markets and,  without  limiting the  generality  of the  foregoing,  to
manufacture,  prepare for market, buy or otherwise  acquire,  sell, or otherwise
deal in or with,  import,  export  and  transport,  at  wholesale  or  retail or
otherwise,  devices relating thereto; and to engage in any other lawful business
or activity. 

     (b) To do  anything  permitted  by Section  2-103 of the  Corporations  and
Associations Article of the Annotated Code of Maryland,  as amended from time to
time.

The foregoing  enumerated  purposes  shall be in no way limited or restricted by
reference  to, or inference  from,  the terms of any other clause of this or any
other Article of the Charter of the  Corporation,  and each shall be regarded as
independent;  and they are  intended to be and shall be  construed  as powers as
well as purposes and shall be in addition to and not in limitation of the powers
of corporations under the laws of the State of Maryland.

THIRD:  The  current  post  office  address  of  the  principal  office  of  the
Corporation in this State is 5026 Herzel Place, Suite 101, Beltsville,  Maryland
20705.  The name and address of the current resident agent of the Corporation is
Michael J.  Cromwell,  III, 10 Light Street,  Baltimore,  Maryland  21202.  Said
resident  agent is a  citizen  of the State of  Maryland  and  actually  resides
therein.

FOURTH: The total number of shares of stock of all classes which the Corporation
has authority to issue is 15,900,000 shares of common stock, with a par value of
$.01 per share, amounting in the aggregate to $159,000.

FIFTH:  The number of directors  of the  Corporation  shall be three (3),  which
number may be increased or decreased pursuant to the By-Laws of the Corporation,
but shall never be less than three (3). The names of the current directors,  who
shall act until their successors are duly chosen and qualified,  are:  Augustine
Y. Cheung; Fee-Wah Cheung; Vance Y. Hum.

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SIXTH:  The Board of  Directors  shall  manage the  business  and affairs of the
Corporation  and may  exercise  all the powers of the  Corporation  except those
conferred upon or reserved to the stockholders by law, including but not limited
to the following:

     (a) The Board of  Directors  shall  have the power from time to time and in
its sole  discretion:  (1) to  determine,  in accordance  with sound  accounting
practice, what constitutes annual or other net profits, earnings, surplus or net
assets in excess of capital; (2) to fix and vary from time to time the amount to
be reserved as working capital,  or determine that retained  earnings or surplus
shall remain in the hands of the Corporation;  (3) to set apart any funds of the
Corporation for the  establishment of such reserves in such amounts and for such
proper  purposes as it shall  determine and to abolish or  redesignate  any such
reserves or any part thereof;  (4) to determine whether there shall be declared,
distributed  or paid  any  distribution  or  dividend  in  stock,  cash or other
securities  or  property,  out of surplus or any other funds or amounts  legally
available  therefor,  and to declare,  distribute and pay the same at such times
and to the stockholders of record on such dates as it may from time to time deem
appropriate;  and (5) to determine  whether,  to what extent,  at what times and
places,  and under what  conditions  and  regulations  the books,  accounts  and
documents of the Corporation, or any of them, shall be open to the inspection of
stockholders,  except as otherwise  provided by statute or by the By-Laws,  and,
except as so provided,  no stockholder shall have the right to inspect any book,
account or document of the Corporation  unless authorized to do so by resolution
of the Board of Directors.

     (b) The Board of Directors of the  Corporation  shall have the power in its
sole discretion and without limitation, subject only to any restrictions imposed

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by  law,  to  authorize  the  issuance  from  time  to  time  of  shares  of the
Corporation's  stock,  with or without par value,  of any class,  whether now or
hereafter  authorized,   and  of  securities  convertible  into  shares  of  the
Corporation's  stock,  with or without par value,  of any class,  whether now or
hereafter authorized,  for such consideration (regardless of the value or amount
of such  consideration)  and in such  manner  and by such  means as the Board of
Directors may deem advisable.

     (c) The Board of Directors  shall have the power in its sole discretion and
without limitation, subject only to any restrictions imposed by law, to classify
or reclassify any unissued shares of stock, whether now or hereafter authorized,
by setting,  altering or eliminating  in any one or more respects,  from time to
time before the issuance of such shares,  any feature of such shares,  including
but not limited to the designation, par value, preferences,  conversion or other
rights,  voting powers,  qualifications,  and terms and conditions of redemption
of, and limitations as to dividends and any restrictions on, such shares.

         The  enumeration  and  definition of particular  powers of the Board of
Directors included in the foregoing provisions of this Article SIXTH shall in no
way be limited or restricted by reference to or inference  from the terms of any
other clause of this or any other Article of the Charter of the Corporation,  or
construed  as or deemed by  inference  or  otherwise in any manner to exclude or
limit any powers  conferred upon the Board of Directors under applicable law now
or hereafter in force.

SEVENTH:  No holders of any shares of the stock of the  Corporation of any class
shall have any preemptive right to purchase,  subscribe for or otherwise acquire
any shares of stock of the Corporation of any class now or hereafter authorized,
or any  securities  exchangeable  for or  convertible  into such shares,  or any
warrants or other  instruments  evidencing  rights or options to subscribe  for,
purchase or otherwise acquire such shares, other than such, if any, as the Board
of Directors in its discretion may fix.

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EIGHTH:  The  Corporation  reserves  the  right  from  time to time to make  any
amendments  of its Charter  which may now or  hereafter  be  authorized  by law,
including any amendments changing the terms or contract rights, as expressly set
forth  in  its  Charter,  of any of its  outstanding  stock  by  classification,
reclassification or otherwise, and any objecting stockholder whose rights may or
shall be  substantially  adversely  affected  shall not be  entitled to the same
rights as an objecting stockholder in the case of a consolidation, merger, share
exchange or sale, lease, exchange or transfer of all or substantially all of the
assets of the Corporation.

NINTH: The duration of the Corporation shall be perpetual.

     THIRD:  By  written  informal  action  unanimously  taken  by the  Board of
Directors  of  the  Corporation,  pursuant  to and in  accordance  with  Section
2-408(c) of the Corporations  and Associations  Article of the Annotated Code of
Maryland,  the Board of Directors of the Corporation  duly advised the foregoing
Articles  of  Amendment  and  Restatement   and,  by  written   informal  action
unanimously  taken by the  stockholders of the  Corporation,  in accordance with
Section 2-505 of the Corporations and Associations Article of the Annotated Code
of Maryland,  the stockholders of the Corporation duly approved said Articles of
Amendment and Restatement.

     FOURTH:  (a) The total  number of  shares  of all  classes  of stock of the
Corporation  heretofore  authorized  is 5,000  shares of common stock all of one
class. Such shares are without par value.

320459.001(B&F)                       5                                12/10/96



     (b) The total  number of shares of all classes of stock of the  Corporation
as increased is 15,900,000  shares of common stock all of one class. Such shares
have a par value of $.01 per share, amounting in the aggregate to $159,000.

         FIFTH:  Upon the  effectiveness  of these  Articles  of  Amendment  and
Restatement  with the State  Department of Assessments and Taxation of Maryland,
each of the authorized shares of common stock without par value shall be changed
and split on the basis of three  thousand one hundred  eighty  (3,180) shares of
common  stock  with a par  value of $.01 per share for each  share  without  par
value,  provided  that any  fractional  interest  shall be  eliminated  by being
rounded off to a full share of stock.

     IN WITNESS WHEREOF, A.Y. CHEUNG ASSOCIATES,  INC. has caused these presents
to be signed in its name and on its behalf by its  President  and its  corporate
seal to be  hereunder  affixed and attested by its  Assistant  Secretary on this
_____ day of June, 1996, and its President  acknowledges  that these Articles of
Amendment and Restatement are the act and deed of A.Y. CHEUNG  ASSOCIATES,  INC.
and, under the penalties of perjury, that the matters and facts set forth herein
with respect to authorization  and approval are true in all material respects to
the best of his knowledge, information and belief.

ATTEST:                                     A.Y. CHEUNG ASSOCIATES, INC.
_______________________________     By: _________________________________
Vance Y. Hum, Assistant Secretary           Augustine Y. Cheung, President

[SEAL]

320459.001(B&F)                        6                               12/10/96





                            CHEUNG LABORATORIES, INC.
                              ARTICLES OF AMENDMENT

         CHEUNG LABORATORIES, INC., a Maryland corporation, having its principal
office at 10220 Old Columbia Road, Suite I, Columbia, MD 21046-1705 (hereinafter
referred to as the  "Corporation"),  hereby certifies to the State Department of
Assessments and Taxation of Maryland that:

     FIRST:  The  Charter of the  Corporation  is hereby  amended by striking in
their entirety  Articles  THIRD,  FOURTH and FIFTH,  and by substituting in lieu
thereof the following:

                  THIRD: The current post office address of the principal office
         of the  Corporation in this State is 10220 Old Columbia Road,  Suite I,
         Columbia,  MD 21046-1705.  The name and address of the current resident
         agent of the Corporation is Charles C. Shelton,  210 West  Pennsylvania
         Avenue, Suite 520, Baltimore,  Maryland 21204-5325.  Said resident is a
         citizen of the State of Maryland and actually resides therein.

                  FOURTH:  The total  number  of shares of stock of all  classes
         which the  Corporation  has authority to issue is 51,000,000  shares of
         common  stock,  with a par value of $.01 per  share,  amounting  in the
         aggregate to $510,000.

                  FIFTH:  The number of  directors of the  Corporation  shall be
         eight (8),  which number may be increased or decreased  pursuant to the
         ByLaws of the Corporation,  but shall never be less than three (3). The
         names of the current  directors,  who shall act until their  successors
         are duly chosen and qualified are:

                                    Augustine Y. Cheung, Chairman
                                    Robert F. Schiffmann
                                    John J. Kohlman
                                    William O. Cave, Sr.
                                    Dennis Smith
                                    John Mon
                                    Charles C. Shelton, Esquire
                                    Shiu Ming (Tom) Hong


320459.001(B&F)                      1                              12/10/96





     SECOND:  The Articles of Incorporation are hereby amended by adding thereto
the following new Article TENTH:

     TENTH:  The Directors and Officers of the  Corporation  shall not be liable
for any money  damages  whatsoever,  except to the extent  provided  by Md. Code
Ann., Corps. & Assn's.  ss.2-405.2 and Md. Code Ann., Cts. & Jud. Pro. ss.5-349,
or any successor or later-adopted provisions of law with similar import.

         Any amendment, modification, or repeal of the foregoing sentence by the
         Board  of  Directors  or  stockholders  of  the  Corporation  shall  be
         prospective  in  operation  and effect  only,  and shall not  adversely
         affect  any  right  or  protection  of a  Director  or  Officer  of the
         Corporation  in respect of any act or omission  occurring  prior to the
         time of such amendment, modification, or repeal.

         THIRD:  By written  informal action  unanimously  taken by the Board of
Directors  of  the  corporation,  pursuant  to and in  accordance  with  Section
2-408(c) of the Corporations  and Associations  Article of the Annotated Code of
Maryland,  the Board of Directors of the Corporation  duly advised the foregoing
Articles  of  Amendment  and,  by  action  taken  by  the  stockholders  of  the
Corporation  pursuant to a  stockholders  meeting held April 15, 1994, and proxy
statement dated March 25, 1994, the stockholder of the Corporation duly approved
said Articles of Amendment.

         IN WITNESS WHEREOF, CHEUNG LABORATORIES, INC. has caused these presents
to be signed in its name and on behalf by its President  and its corporate  seal
to be  hereunder  affixed and  attested to by its  Secretary on this ____ day of
December,  1994, and its President acknowledges that these Articles of Amendment
are the act and deed of CHEUNG  LABORATORIES,  INC. and,  under the penalties of
perjury,   that  the  matters  and  facts  set  forth  herein  with  respect  to
authorization  and approval are true in all material respects to the best of his
knowledge, information and belief.

ATTEST:                                          CHEUNG LABORATORIES,INC.
  /s/                                            By:   /s/
- ------------------------------                   -----------------------------
Charles C. Shelton, Secretary                    Augustine Y. Cheung,  President




320459.001(B&F)                         2                              12/10/96



                            CHEUNG LABORATORIES, INC.

                                     BY-LAWS


                                   ARTICLE I.
                                  STOCKHOLDERS

Section 1.        ANNUAL MEETING

                  The annual  meeting  of the  stockholders  of the  Corporation
shall be held during the month of January of each year at such time as the Board
of Directors shall, in their  discretion,  fix. The business to be transacted at
the annual  meeting shall include the election of directors,  consideration  and
action upon the report of the President, and any other business within the power
of the Corporation.

Section 2.        SPECIAL MEETING

                  At any  time  in the  intervals  between  annual  meetings,  a
special  meeting of the  stockholders  may be called by the  President or by the
Board of Directors.

Section 3.        NOTICE OF MEETING

                  Not less  than ten (10) days nor more  than  ninety  (90) days
before the date of every stockholders' meeting, the Secretary shall give to each
stockholder entitled to vote at such meeting,  written or printed notice stating
the time and place of the  meeting  and, in the case of a special  meeting,  the
purpose or purposes for which the meeting is called,  either by presenting it to
him personally, by leaving it at his residence or usual place of business, or by
mailing  it to  him  at  his  address  as it  appears  on  the  records  of  the
Corporation.

                  No business shall be transacted at a special meeting save that
specially named in the notice.

                  Notwithstanding the foregoing provisions, each person entitled
to notice  waives notice if he before or after the meeting signs a waiver of the
notice which is filed with the records of stockholders  meetings,  or is present
at the meeting in person or by proxy.





Section 4.        QUORUM

                  At any meeting of  stockholders  the  presence in person or by
proxy of  stockholders  entitled to cast a majority of the votes  thereat  shall
constitute a quorum.  A majority of the votes cast at a meeting of stockholders,
duly  called and at which a quorum is  present  shall be  sufficient  to take or
authorize  action  upon any matter  which may  properly  come before the meeting
unless more than a majority  of votes is required by statute,  by the Charter of
the Corporation, or by these By-Laws.

                  In  the  absence  of  a  quorum,  a  majority  of  the  shares
represented  in person or by proxy may adjourn the meeting from time to time not
exceeding  a total of sixty  (60) days  without  further  notice  other  than by
announcement at such meeting.  At such adjourned meeting at which a quorum shall
be present,  any business may be transacted  which might have been transacted at
the meeting  originally  called.  The  stockholders  present at a duly organized
meeting may continue to transact business until adjournment, notwithstanding the
withdrawal of enough stockholders to leave less than a quorum. In the event that
at any meeting a quorum exists for the transaction of some business but does not
exist for the transaction of other  business,  the business as to which a quorum
is present may be  transacted  by the  holders of stock  present in person or by
proxy who are entitled to vote thereon.

Section 5.        VOTING

                  Each  share of  common  stock  will be  entitled  to one vote,
unless the Charter of the Corporation provides for a greater or lesser number of
votes per share or limits or denies voting rights.

Section 6.        PROXIES

                  At all meetings of  stockholders,  a stockholder  may vote the
shares  owned of record by him either in person of by proxy  executed in writing
by the stockholder or by his duly authorized attorney-in-fact.  Such proxy shall
be filed  with the  Secretary  of the  Corporation  before or at the time of the
meeting.  No proxy shall be valid after  eleven (11) months from the date of its
execution, unless otherwise provided in the proxy.

Section 7.        PLACE OF MEETING

319999.001(B&F)                     2






                  The Board of Directors may designate any place,  either within
or without  the State of  Maryland,  as the place of  meeting  for any annual or
special meeting of stockholders.

Section 8.        CONDUCT OF MEETINGS

                  Meetings  of  stockholders  shall  be  presided  over  by  the
Chairman  of the Board,  if one be elected  and is present at the meeting or, if
not, by the  President of the  Corporation  or, if he is not present,  by a Vice
President of the Corporation or, if he is not present, by a Vice President,  or,
if no Vice President is present, by a chairman to be elected at the meeting. The
Secretary of the Corporation,  or if he is not present, any Assistant Secretary,
shall act as secretary of such meetings. In the absence of the Secretary and any
Assistant  Secretary,  the  presiding  officer  may  appoint  a person to act as
secretary of the meeting.

Section 9.        INFORMAL ACTION BY STOCKHOLDERS

                  Any action  required or  permitted to be taken at a meeting of
stockholders  may be taken  without a meeting if there is filed with the records
of  stockholders'  meetings a  unanimous  written  consent  which sets forth the
action and is signed by each  stockholder  entitled  to vote on the matter and a
written  waiver of any right to dissent signed by each  stockholder  entitled to
notice of the meeting but not entitled to vote at it.


                                   ARTICLE II.
                                    DIRECTORS

Section 1.        POWERS

                  The business and affairs of the  Corporation  shall be managed
by its  Board  of  Directors,  which  may  exercise  all of  the  powers  of the
Corporation,  except such as are by statute,  by the Charter of the Corporation,
or by these By-Laws expressly conferred upon or reserved to the stockholders.

Section 2.        NUMBER AND TENURE


319999.001(B&F)                        3






                  The number of Directors  shall be three (3),  which number may
be altered by a majority  of the entire  Board of  Directors,  provided  that it
shall never be less than three (3) nor more than nine (9). Each  Director  shall
hold office until the next annual meeting of stockholders or until his successor
shall have been elected and shall have qualified. The number of Directors may be
increased or decreased by the affirmative bote of not less than two-thirds (2/3)
of the entire  Board of  Directors,  but the action may not affect the tenure of
office of any Director.

Section 3.        VACANCIES

                  Any vacancy  occurring in the Board of  Directors,  other than
one occurring  because of an increase in the number of Directors,  may be filled
by the affirmative  bote of a majority of the remaining  Directors.  Any vacancy
occurring  in the  Board  of  Directors  due to an  increase  in the  number  of
Directors  may be filled by a  majority  of the  entire  Board of  Directors.  A
Director  elected to fill a vacancy shall serve until the next annual meeting of
stockholders and until his successor is elected and qualifies.

Section 4.        REGULAR MEETING

                  The  Board  of  Directors   shall  meet  for  the  purpose  of
organization, the election of Officers, and the transaction of other business as
soon as  practicable  after each annual meeting of  stockholders.  Other regular
meetings of the Board of Directors  shall be held at such times and such places,
either within or without the State of Maryland,  as may be designated  from time
to time by the Board of Directors.

Section 5.        SPECIAL MEETING

                  Special  meetings of the Board of  Directors  may be called by
the President or by any two Directors.  The person or persons authorized to call
special  meetings of the Board of Directors  may fix any time and place,  either
within or without the State of  Maryland,  as the time and place for holding the
special meeting of the Board of Directors called by them.

Section 6.        NOTICE

                  Notice of every regular or special  meeting of the Board shall
be given to each  Director by written  notice  stating the time and place of the

319999.001(B&F)                          4




meeting.  Notice is given to a Director when it is delivered  personally to him,
left at his residence of usual place of business, or sent by telegraph, at least
twenty-four (24) hours before the time of the meeting or, in the alternative, be
mailed to his address as it appears on the records of the  Corporation  at least
seventy-two  (72) hours before the time of the  meeting.  Any Director may waive
notice of any meeting by written  waiver  filed with the records of the meeting,
either before or after the holding  thereof.  The  attendance of a Director at a
meeting  shall  constitute  a waiver of notice of such  meeting,  except where a
Director  attends  a  meeting  for  the  express  purpose  of  objecting  to the
transaction  of any  business  because  the  meeting is not  lawfully  called or
convened.  Neither  the  business to be  transacted  at, nor the purpose of, any
regular or special  meeting of the Board of  Directors  need be specified in the
notice or waiver of notice of such meeting.

Section 7.        QUORUM

                  Unless  otherwise  provided by statute,  by the Charter of the
Corporation,  or by these  By-Laws,  a majority of the Board of Directors  shall
constitute  a quorum  for the  transaction  of  business,  but if less than such
quorum is present at a meeting,  a majority of the Directors present may adjourn
the meeting from time to time without further notice.

Section 8.        MANNER OF ACTING

                  The action of a majority of the Directors present at a meeting
at which a quorum is  present  shall be the  action  of the  Board of  Directors
unless the  concurrence  of a greater  proportion is required for such action by
statute, by the Charter of the Corporation, or by these By-Laws.

Section 9.        COMPENSATION

                  By  resolution  of the  Board  of  Directors  a fixed  sum and
expenses of  attendance,  if any, may be paid to the Directors for attendance at
meetings of the Board of Directors or of committees thereof.  Other compensation
for their  services as such or on  committees of the Board of Directors may also
be paid to Directors.  No such payment shall  preclude any Director from serving
the Corporation in any other capacity and receiving compensation therefor.

Section 10.       INFORMAL ACTION

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                  Any action required or permitted to be taken at any meeting of
the Board of Directors  may be taken  without a meeting if a written  consent to
such action is signed by all members of the Board of Directors  and such written
consent is filed with the minutes of proceedings of the Board of Directors.

Section 11.       MEETING BY CONFERENCE TELEPHONE

                  Members of the Board of Directors may participate in a meeting
by means of a conference  telephone or similar  communications  equipment if all
persons  participating  in the  meeting  can hear each  other at the same  time.
Participating  in a meeting by these means  constitutes  presence in person at a
meeting.


                                  ARTICLE III.
                                   COMMITTEES

Section 1.        COMMITTEES

                  The Board of  Directors  may appoint from among its members an
Executive  Committee and other committees  composed of two or more Directors and
delegate to these  committees in the intervals  between meetings of the Board of
Directors  any of the  powers of the  Board of  Directors,  except  the power to
declare dividends or distributions on stock approve any merger or share exchange
which does not require  stockholder  approval,  amend the  By-Laws,  issue stock
other than as permitted by statute,  or recommend to the stockholders any action
which requires stockholder  approval.  Each committee may fix rules of procedure
for its business.  A majority of the members of a committee  shall  constitute a
quorum  for the  transaction  of  business  and the act of a  majority  od those
present  at a  meeting  at which a  quorum  is  present  shall be the act of the
committee.  The members of a committee  present at any  meeting,  whether or not
they  constitute  a quorum,  may appoint a Director to act in place of an absent
member. The members of a committee may conduct any meeting thereof by conference
telephone in accordance with the provisions of Article II, Section 11.

Section 2.        MINUTES

                  Each  committee  shall  keep  minutes of its  proceedings  and
report the same to the Board of Directors as and when required by the Board.

319999.001(B&F)                    6




Section 3.        EMERGENCY

                  In the event of a state of disaster of sufficient  severity to
prevent  the  conduct  and  management  of  the  affairs  and  business  of  the
Corporation under the direction of its Directors and Officers as contemplated by
its Charter and By-Laws, any two or more available members of the then incumbent
Executive  Committee  shall  constitute a quorum of that  Committee for the full
conduct  and  management  of the  affairs and  business  of the  Corporation  in
accordance  with the  provisions of Article III,  Section 1. In the event of the
unavailability,  at such time, of a minimum of two members of the then incumbent
Executive Committee,  the available directors shall elect an Executive Committee
consisting of any two members of the Board of Directors,  whether or not they be
Officers of the  Corporation,  which two members shall  constitute the Executive
Committee for the full conduct and management of the affairs of the  Corporation
in  accordance  with the  foregoing  provisions  of this Section 3. This Section
shall be subject  to  implementation  by  resolution  of the Board of  Directors
passed from time to time for that  purpose,  and any  provisions  of the By-Laws
(other  than this  Section  3) and any  resolutions  which are  contrary  to the
provisions  of this  Section  3 or to the  provisions  of any such  implementary
resolutions  shall be  suspended  until it shall be  determined  by any  interim
Executive  Committee  acting  under  this  Section  3 that  it  shall  be to the
advantage of the Corporation to resume the conduct and management of its affairs
and business under all the other provisions of the By-Laws.


                                   ARTICLE IV.
                                    OFFICERS

Section 1.        EXECUTIVE OFFICERS

                  The  Corporation  shall  have  a  President,  who  shall  be a
Director of the Corporation,  a Secretary,  and a Treasurer.  It may also have a
Chairman of the Board, who shall be a Director of the  Corporation,  one or more
Vice Presidents,  one or more Assistant Vice  Presidents,  one or more Assistant
Secretaries,  one or more Assistant  Treasurers,  and such other officers as the
Board of  Directors  may elect.  Any two offices may be held by the same person,
except those of President  and Vice  President,  but no Officer  shall  execute,
acknowledge  or  verify  any  instrument  in  more  than  one  capacity  if such
instrument  is required to be executed,  acknowledged  or verified by any two or
more Officers.

319999.001(B&F)                        7





Section 2.        ELECTION AND TENURE

                  The Officers of the Corporation  shall be elected by the Board
of  Directors  at the first  meeting of the Board of  Directors  held after each
annual meeting of the  stockholders,  or as soon after such first meeting as may
be convenient. Each Officer shall hold office for such period, not to exceed one
(1) year, as the Board of Directors  may fix or until his  successor  shall have
been duly elected and shall have qualified.

                  The Board of  Directors  may,  at any  time,  and from time to
time,  authorize the making or adoption by the Corporation of special  contracts
with an Officer  for  services of such  Officer  for a fixed  period and on such
terms and conditions,  and with such powers, duties and compensation,  as may be
fixed by such  contract,  and may  elect  such  Officer  for such term or terms,
whether exceeding one (1) year or not, as may be specified by such contract.

Section 3.        REMOVAL

                  Any Officer or agent of the  Corporation may be removed by the
Board  of  Directors  whenever,  in its  judgment,  the  best  interests  of the
Corporation will be served thereby,  but such removal shall be without prejudice
to the contract rights, if any, of the person so removed.

Section 4.        VACANCIES

                  A  vacancy  in any  office  may be  filled  by  the  Board  of
Directors for the unexpired portion of the term.

Section 5.        CHAIRMAN OF THE BOARD

                  The Chairman of the Board, if one be elected, shall preside at
all meetings of the Board of Directors and of the stockholders at which he shall
be present.  He shall have and may  exercise  such  powers as are,  from time to
time, assigned to him by the Board of Directors.

Section 6.        PRESIDENT


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                  The President shall be elected from the Board of Directors and
shall,  in the absence of the Chairman of the Board,  preside at all meetings of
the Board and of the stockholders at which he is present.  He shall be the chief
executive  office of the Corporation and, subject to the control of the Board of
Directors,  shall, in general,  supervise and administer all of the business and
affairs of the Corporation.  In general, the President shall have all powers and
shall  perform all duties  incident to the office of  President  and such as may
from time to time be prescribed by the Board of Directors.

Section 7.        VICE PRESIDENTS

                  The Vice President or Vice  Presidents,  at the request of the
President or in his absence or during his  inability to act,  shall  perform the
duties and exercise the  functions  of the  President,  and when so acting shall
have the powers of the President. If there be more than one Vice President,  the
Board of Directors may determine which one or more of the Vice Presidents  shall
perform  any of  such  duties  or  exercise  any of such  functions,  or if such
determination is not made by the Board of Directors, the President may make such
determination;  otherwise  any of the Vice  Presidents  may  perform any of such
duties,  and have such  additional  descriptive  designations  (if any) in their
titles as may be assigned by the Board of Directors or the President.

Section 8.        THE SECRETARY

                  The Secretary shall in general have all powers and perform all
duties  incident to the office of Secretary and such as may from time to time be
prescribed by the Board of Directors or by the President.

Section 9.        THE TREASURER

                  The  Treasurer  shall  have  general  charge of the  financial
affairs of the Corporation.  He shall in general have all powers and perform all
duties  incident to the office of Treasurer and such as may from time to time be
prescribed by the Board of Directors or by the President.

Section 10.       ASSISTANT OFFICERS

                  The Assistant  Vice Presidents  shall have such  duties as may
from  time  to  time be  assigned to  them by  the Board  of  Directors  or  the


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President.  The Assistant Secretaries shall have such duties as may from time to
time be  assigned  to them by the  Board  of  Directors  or the  Secretary.  The
Assistant Treasurers shall have such duties as may from time to time be assigned
to them by the Board of Directors of the Treasurer.

Section 11.       OTHER OFFICERS

                  Such  other  officers  as  may be  elected  by  the  Board  of
Directors  shall have such powers and perform  such duties as the Board may from
time to time prescribe.

Section 12.       SALARIES

                  The salaries of the Officers  shall be fixed from time to time
by the Board of Directors, and no Officer shall be prevented from receiving such
salary by reason of the fact that he is also a Director of the Corporation.

Section 13.       SPECIAL APPOINTMENTS

                  In the absence or incapacity  of any Officer,  or in the event
of a vacancy in any office,  the Board of Directors  may designate any person to
fill any such office pro tempore or for any particular purpose.


                                   ARTICLE V.
                                      SEAL

                  The seal of the Corporation shall be circular in form with the
words  "CHEUNG  LABORATORIES,  INC." in the  periphery and the words and figures
"INCORPORATED 1982 MARYLAND" in the center.


                                   ARTICLE VI.
                                      STOCK

Section 1.        CERTIFICATES OF STOCK

                  Certificates representing shares of the Corporation shall   be
in such form as shall be determined by the Board of Directors.  Each certificate
shall be signed,

319999.001(B&F)                       10



manually or by facsimile, by the President or a Vice President and countersigned
by the Secretary or the Treasurer and shall be sealed with the corporate seal or
a facsimile of it. All certificates  surrendered to the Corporation for transfer
shall be  cancelled,  and no new  certificates  shall be issued until the former
certificate  for a like  number  of  shares  shall  have  been  surrendered  and
cancelled,  except  that  in  case of a lost,  stolen,  destroyed  or  mutilated
certificate,  a new one may be issued  therefor upon such terms and indemnity to
the Corporation as the Board of Directors may prescribe.

Section 2.        TRANSFER OF SHARES

                  Transfer  of shares of the  Corporation  shall be made only on
its stock  transfer  books by the holder of record  thereof,  or by his attorney
thereunto  authorized  by power of  attorney  duly  executed  and filed with the
Secretary  of  the  Corporation,  and  on  surrender  for  cancellation  of  the
certificate for such shares.  The person in whose name shares stand on the books
of the Corporation shall be deemed to be the owner thereof for all purposes. The
Board of Directors  shall have power and  authority to make such other rules and
regulations  as it may deem  necessary  or  appropriate  concerning  the  issue,
transfer and  registration of certificates  of stock;  and may appoint  transfer
agents and registrars thereof. The duties of transfer agent and registrar may be
combined.

Section 3.        FIXING DATE FOR DETERMINATION OF STOCKHOLDERS'
RIGHTS

                  The Board of  Directors  may fix,  in  advance,  a date as the
record date for the purpose of determining the  stockholders  entitled to notice
of, or to vote at, any meeting of stockholders,  or the stockholders entitled to
receive  payment of any dividend or the allotment of any rights,  or in order to
make a  determination  of  stockholders  for  any  other  proper  purpose.  Only
stockholders  of record on such date shall be entitled to notice of, and to vote
at, such  meeting or to receive such  dividends  or rights,  as the case may be,
notwithstanding  any transfer of any stock on the books of the Corporation after
such record date fixed as aforesaid.



319999.001(B&F)                      11





                                  ARTICLE VII.
                                   AMENDMENTS

                  The  By-Laws  may be  altered,  amended or  repealed,  and new
By-Laws may be adopted, by a majority of the entire Board of Directors.


                                  ARTICLE VIII.
                                   FISCAL YEAR

                  The fiscal year of the  Corporation  shall end on September 30
of each year.


                                   ARTICLE IX.
                                 INDEMNIFICATION

Section 1.        DEFINITIONS

                  As used in this  Article  IX,  any  word or words  defined  in
Section 2-418 of the Corporations and Associations Article of the Annotated Code
of Maryland, as amended from time to time (the "Indemnification Section"), shall
have the same meaning as provided in the Indemnification Section.

Section 2.        DIRECTORS AND OFFICERS

                  The  Corporation  shall  indemnify  and advance  expenses to a
Director or Officer of the  Corporation  in connection  with a proceeding to the
fullest extent permitted by and in accordance with the Indemnification Section.

Section 3.        OTHER EMPLOYEES AND AGENTS

                  With respect to an employee or agent, other than a Director of
Officer, of the Corporation,  the Corporation may, as determined by the Board of
Directors of the Corporation, indemnify and advance expenses to such employee or
agent  in  connection  with a  proceeding  to  the  extent  permitted  by and in
accordance with the Indemnification Section.


319999.001(B&F)                        12




                                   ARTICLE X.
                                WAIVER OF NOTICE

                  Unless  otherwise  provided  by law,  whenever  any  notice is
required to be given to any stockholder or director of the Corporation under the
provisions  of  these  ByLaws  or  under  the  provisions  of  the  Articles  of
Incorporation,  a waiver  thereof  in  writing,  sighed by the person or persons
entitled to such notice,  whether before of after the time stated therein, shall
be deemed equivalent to the giving of such notice.



                                   ARTICLE XI.
                                   AMENDMENTS

                  These  By-Laws  may be altered,  amended or  repealed  and new
By-Laws may be adopted by a vote of the stockholders  representing a majority of
all shares issued and outstanding, at any annual stockholders' meeting or at any
special  stockholders'  meeting when the proposed  amendment has been set out in
the notice of such meeting.



319999.001(B&F)                     13






                            CHEUNG LABORATORIES, INC.

                              AMENDMENT TO BY-LAWS

                                   ARTICLE II
                                    DIRECTORS


Section 6 - NOTICE

         Notice of every  regular or special  meeting of the Board of  Directors
shall be given to each Director by written  notice stating the time and place of
the meeting.  Notice is given to a Director  when it is delivered  personally to
him, left at his last known business or residence address, sent by telecopier or
facsimile  transmission  to the  Director's  last known  telephone or telecopier
number,  or by  overnight  delivery,  including,  but not  limited  to,  Federal
Express, as least 24 hours before the time of the meeting or, in the alternative
be mailed to his last known  business or residence  address as it appears on the
records of the Corporation at least 72 hours before the time of the meeting. Any
Director  may waive  notice of any  meeting  by  written  waiver  filed with the
records  of the  meeting,  either  before  or after  the  holding  thereof.  The
attendance  of a Director at a meeting  shall  constitute  a waiver of notice of
such meeting,  except where a Director attends a meeting for the express purpose
of  objecting  to the  transacting  of any  business  because the meeting is not
lawfully  called or convened.  Neither the business to be transacted at, nor the
purpose of, any regular or special  meeting of the Board of Directors need to be
specified in the notice or waiver of such meeting.

         The Board of Directors may exclude from deliberations of the Board, and
also  from  participation  at a  meeting  of  the  Board  (such  exclusion  from
participation  including  lack of notice of the Board  meeting as well as actual
participation in the Board meeting) any Director or Directors which the Board of
Directors  has a bona fide  reason to believe  has a  conflict  of  interest  in
receiving   and   evaluating   sensitive   information   dealing  with  business
opportunities  or business of the  Corporation  such that the  imparting of such
knowledge to the affected  Director or Directors  could cause serious  injury to
the Corporation's business or business opportunities.  This provision shall take
effect immediately upon approval by the Board of Directors.



                                IRREVOCABLE PROXY

         In consideration of the terms of a Redemption  Agreement between Cheung
Laboratories,  Inc. (the "Corporation") and the undersigned, dated June 6, 1996,
the  undersigned  holder  of  20,000,000  shares  of  the  common  stock  of the
Corporation  (hereinafter referred to as the "Common Stock") hereby appoints Dr.
Augustine Y. Cheung as agent and proxy of the undersigned, and representative of
the Corporation,  with full power of substitution,  to vote all shares of Common
Stock which the undersigned  would be entitled to vote, with all power which the
undersigned  would  possess,  upon all matters that may properly come before the
shareholders of the Corporation.

         This proxy shall be  irrevocable  for the period  June 6, 1996  through
February  28,  1997 and the  undersigned  hereby  revokes  any proxy or  proxies
heretofore given to vote such shares of Common Stock.

WITNESS:                                             STOCKHOLDER:



                                                  /S/ Gao Yu Wen
                                                      Gao Yu Wen


[Portions  of this  document are subject to requests of  confidential  treatment
filed with the Securities and Exchange Commission]

                      MASSACHUSETTS INSTITUTE OF TECHNOLOGY

                                       and

                            CHEUNG LABORATORIES, INC.

                            PATENT LICENSE AGREEMENT


                 M.I.T.'S OFFER TO CHEUNG LABORATORIES, INC. TO
              ENTER INTO THIS LICENSE AGREEMENT SHALL EXTEND UNTIL
                           NO LATER THAN JUNE 1, 1996.


                                   (EXCLUSIVE)










319999.001(B&F)                          2





                                TABLE OF CONTENTS

WITNESSETH...............................................................  1
1.  DEFINITIONS..........................................................  2
2.  GRANT................................................................  5
3.  DUE DILIGENCE........................................................  7
4.  ROYALTIES............................................................  8
5.  REPORTS AND RECORDS.................................................. 10
6.  PATENT PROSECUTION................................................... 12
7.  INFRINGEMENT......................................................... 12
8.  PRODUCT LIABILITY.................................................... 14
9.  EXPORT CONTROLS...................................................... 15
10.  NON-USE OF NAMES.................................................... 15
11.  ASSIGNMENT.......................................................... 15
12.  DISPUTE RESOLUTION.................................................. 16
13.  TERMINATION......................................................... 16
14.  PAYMENTS, NOTICES
AND OTHER COMMUNICATIONS................................................. 18
15.  MISCELLANEOUS PROVISIONS............................................ 18

APPENDIX A............................................................... 20

APPENDIX B............................................................... 21

APPENDIX C............................................................... 22


                                       ii






                      MASSACHUSETTS INSTITUTE OF TECHNOLOGY

                                       and

                            CHEUNG LABORATORIES, INC.

                            PATENT LICENSE AGREEMENT


         This  Agreement is made and entered  into this ____ day of  __________,
1996,  (the  "Effective  Date")  by  and  between  MASSACHUSETTS   INSTITUTE  OF
TECHNOLOGY,  a corporation  duly  organized  and existing  under the laws of the
Commonwealth   of   Massachusetts   and  having  its  principal   office  at  77
Massachusetts Avenue, Cambridge, Massachusetts 02139 (hereinafter referred to as
"M.I.T."), and CHEUNG LABORATORIES, INC., a corporation duly organized under the
laws of Maryland and having its principal  office at 10220-I Old Columbia  Road,
Columbia, MD 21046-1705 (hereinafter referred to as "Licensee").

                               W I T N E S S E T H
     WHEREAS,  M.I.T. is the owner of certain  Intellectual  Property Rights (as
later  defined  herein)  relating  to M.I.T.  Case No.  5493L,  U.S.  Patent No.
5,251-645,  "Adaptive  Hyperthermia  System" by Alan Fenn,  and M.I.T.  Case No.
5672L,  "Non- Invasive Monopole  Hyperthermia  Array for Brain Tumor Heating" by
Alan Fenn, and M.I.T.  Case No. 6512L "Minimally  Invasive Monopole Phased Array
Hyperthermia  Applicators for Treating Carcinoma" by Alan Fenn and has the right
to grant  licenses under said Patent Rights (as later defined  herein),  subject
only to a royalty-free,  nonexclusive  license  heretofore granted to the United
States Government;

     WHEREAS,   M.I.T.   desires  to  have  the  Patent  Rights   developed  and
commercialized  to  benefit  the  public  and is  willing  to  grant  a  license
thereunder;

     WHEREAS,  M.I.T. is the owner of certain rights,  title and interest in the
Program (as later defined herein) relating to M.I.T. Case No. 7299LS, "NULLGSC,"
by Alan J. Fenn and M.I.T. Case No. 7928LS,  "FOCUSGSC," by Alan J. Fenn subject
only to the  royalty-free,  nonexclusive  license  rights of the  United  States


301650.001(BF)                         1



Government   pursuant  to  48  CFR  52.227-14   (Civilian   Agencies)  or  DFARS
252.227-7013 (Defense Agencies), and has the right to grant licenses thereunder;

     WHEREAS, M.I.T. desires to have the Program developed and commercialized to
benefit the public and is willing to grant a license thereunder;

         WHEREAS,  Licensee has represented to M.I.T., to induce M.I.T. to enter
into  this  Agreement,   that  Licensee  is  experienced  in  the   development,
production,  manufacture, marketing and sale of products similar to the Licensed
Product(s) (as later defined herein) and/or the use of the Licenses  Process(es)
(as  later  defined  herein)  and that it shall  commit  itself  to a  thorough,
vigorous  and  diligent  program  of  exploiting  the  Patent  Rights,  and to a
thorough,  vigorous and diligent program of exploiting the Patent Rights, and to
a thorough,  vigorous and diligent  program of exploiting  the Program,  so that
public  utilization shall result  therefrom,  all in the manner provided herein;
and

         WHEREAS,  Licensee  desires to obtain a license under the Patent Rights
and also  desires  to  obtain a  license  to the  Program,  upon the  terms  and
conditions hereinafter set forth.

         NOW, THEREFORE,  in consideration of the premises and the mutual terms,
conditions and covenants contained herein, the parties hereto agree as follows:


                                 1. DEFINITIONS

         For purposes of this  Agreement,  the following words and phrases shall
have the following meanings:

         1.1. "Licensee" shall include a related company of Cheung Laboratories,
Inc., the voting stock of which is directly or indirectly at least fifty percent
(50%) owned or controlled by Cheung  Laboratories,  Inc., an organization  which
directly or  indirectly  controls  more than fifty  percent  (50%) of the voting
stock of Cheung Laboratories,  Inc. and an organization,  the majority ownership
of  which  is  directly  or  indirectly   common  to  the  ownership  of  Cheung
Laboratories, Inc.

         1.2.    "Patent  Rights"  shall  mean  all  of  the  following   M.I.T.
intellectual property:

301650.001(BF)                          2






                  (a)      the United States patents listed in Appendix A;

                  (b)      the  United  States  patent  applications  listed  in
                           Appendix A, and divisionals, continuations and claims
                           of  continuation-in-part  applications which shall be
                           directed to subject matter specifically  described in
                           such patent applications, and the resulting patents;

                  (c)      any patents resulting from reissues or reexaminations
                           of the United States patents described in (a) and (b)
                           above;

                  (d)      the Foreign patents listed in Appendix A;

                  (e)      the Foreign patent applications listed in Appendix A,
                           and   divisionals,   continuations   and   claims  of
                           continuation-in-part   applications  which  shall  be
                           directed to subject matter specifically  described in
                           such Foreign patent  applications,  and the resulting
                           patents;

                  (f)      Foreign patent applications filed after the Effective
                           Date  in  the  countries  listed  in  Appendix  B and
                           divisionals,     continuations    and    claims    of
                           continuation-in-part   applications  which  shall  be
                           directed to subject matter specifically  described in
                           such patent applications,  and the resulting patents;
                           and

                  (g)      any  Foreign   patents,   resulting  from  equivalent
                           Foreign  procedures  to United  States  reissues  and
                           reexaminations,  of the Foreign patents  described in
                           (d), (e) and (f) above.

         1.3.     "Copyright" shall mean M.I.T.'s copyrights in the Program.

         1.4.  "Program"  shall  mean the  computer  program(s),  "NULLGSC"  and
"FOCUSGSC"   and  related   documentation,   if  any  described  in  Appendix  C
(hereinafter  the  "M.I.T.   Copyrighted  Program"),   and  shall  also  include
Adaptations,  Derivative Works and Translations.  Program shall also include any
additional  computer  programs,   including  but  not  limited  to  acceleration
software,  developed  for use  with  any of the  Intellectual  Property  Rights.
Program may be protected by both Patent Rights and Copyrights.

301650.001(BF)                          3




         1.5.     "Adaptations" shall mean  the Program as it  may be adapted by
 Licensee for hardware other than the original M.I.T. Cray computer.

         1.6.  "Derivative  Works"  shall  mean a program  that uses the  M.I.T.
Copyrighted  Program and/or Adaptation,  but which has enhanced and new features
or fewer  features.  Licensee  shall be entitled to  establish  all  proprietary
rights for itself in the intellectual  property  represented by Licensee-created
enhancements  and  new  features,  whether  in  the  nature  of  trade  secrets,
copyrights  or patent  rights  or other  rights.  M.I.T.  shall be  entitled  to
establish  all  proprietary  rights  for  itself  in the  intellectual  property
represented  by  M.I.T.-created  enhancements  and new features,  whether in the
nature of copyrights or patent rights or other rights.

         1.7. "Translation" shall mean a translation of the Program into another
language.

         1.8. "Intellectual Property Rights" shall mean all of the Patent Rights
and Copyright.

         1.9.    A "Licensed Product" shall mean Licensee's hyperthermia machine
and accessories, or part thereof which:

                  (a)      is  covered  in  whole  or  in  part  by  an  issued,
                           unexpired  claim or a pending claim  contained in the
                           Patent  Rights  in the  country  in  which  any  such
                           Licensed  Product or part  thereof  is made,  used or
                           sold; or

                  (b)      is  manufactured by using a process or is employed to
                           practice  a process  which is  covered in whole or in
                           part by an issued, unexpired claim or a pending claim
                           contained in the Patent Rights in the county in which
                           any Licensed Process is used or in which such product
                           or part thereof is used or sold.

                  (c)      is covered by the Copyright.

         1.10. A "Licensed  Process"  shall mean any process which is covered in
whole or in part by an issued,  unexpired  claim or a pending claim contained in
the Patent Rights, or is covered by the Copyright.

301650.001(BF)                         4




         1.11. "Net Sales" shall mean Licensee's and its sublicensees' billings,
including  Treatment Revenue,  for Licensed Products and Licensed Processes less
the sum of the  following  items,  providing  that  these  items are  payable by
Licensee  or  deductible  from  Licensee's  billings  within  sixty (60) days of
receiving payments from Licensee's customer(s):

                  (a)      discounts allowed  in amounts customary  in the trade
                           for   quantity   purchases,  cash   payments,  prompt
                           payments, wholesalers and distributors;

                  (b)      sales,  tariff  duties  and/or  use  taxes   directly
                           imposed and with reference to particular sales;

                  (c)      outbound transportation prepaid or allowed;

                  (d)      amounts allowed or credited on returns; and

                  (e)      allowance  for  bad  debt, not to exceed Five Percent
                           (5%) of Net Sales per calendar year.

         No other  deductions  shall be made for commissions paid to individuals
whether  they be with  independent  sales  agencies  or  regularly  employed  by
Licensee and on its payroll,  or for the cost of collections.  Licensed Products
shall be considered "sold" ninety (90) days after billing or invoicing,  or upon
receipt of payment,  whichever  comes first,  provided,  however,  that Licensed
Products are actually  shipped to customers.  If a Licensed  Product or Licensed
Process shall be  distributed or invoiced for a discounted  price  substantially
lower than  customary in the trade or  distributed  at no cost to  affiliates or
otherwise,  Net Sales  shall be based on the  customary  amount  billed for such
Licensed Products or Licensed Processes.

         1.12.    "Field of Use One" shall mean Breast Hyperthermia.

         1.13.    "Field of Use Two" shall mean Head and Neck Hyperthermia.

         1.14.    "Field of Use Three"  shall mean  Deep Seated  Hyperthermia of
other organs, including, but not limited to, liver, lung and prostate.


301650.001(BF)                           5




         1.15.  On the  Effective  Date,  "Exclusive  Fields of Use" shall mean,
Field of Use One, Field of Use Two, and Field of Use Three.  This definition may
be modified according to paragraphs 3.3(b), 3.4(b) and 3.5(b).

         1.16.  "Other  Revenue" shall mean  Licensee's  gross revenues from the
sale of services,  including but not limited to, fees for  consulting,  research
and development, and training in connection with:

                  a.       the sublicensing of  the Intellectual Property Rights
                  and/or;

                  b.       the use of sale, lease or  other transfer of Licensed
                  Products or Licensed Processes.

         1.17.    "End User" shall  mean a customer  authorized to  use a single
copy of the Licensed  Product for  internal purposes  only and  not  for further
distribution.


                                    2. GRANT

         2.1.  M.I.T.  hereby grants to Licensee the right and license for Field
of Use One,  Field of Use Two,  and  Field of Use  Three to  practice  under the
Patent Rights and, to the extent not prohibited by other patents,  to make, have
made, use, lease, sell and import Licenses Products and to practice the Licensed
Processes,  until the  expiration  of the last to expire of the  Patent  Rights,
unless this Agreement shall be sooner terminated according to the terms hereof.

         2.2.     M.I.T. hereby  grants to  Licensee the  following  rights  and
licenses for the  Exclusive Fields of Use to  the end of the term  for which the
Copyright shall be granted, unless this Agreement shall be sooner terminated:

                  (a)      to use and reproduce the Program;

                  (b)      to create Derivatives;

                  (c)      to lease, transfer  and sublicense  Licensed Products
                           to  End-Users  through   the   normal   channels   of
                           distribution; and


301650.001(BF)                         6





                  (d)      to grant any or  all of the above rights and licenses
                           to Sublicensees.

         2.3. In order to establish a period of exclusivity for Licensee, M.I.T.
hereby agrees that it shall not grant any other license to the Patent Rights for
the Exclusive  Fields of Use, and also that it shall not grant any other license
to the Copyright for the Exclusive  Fields of Use, subject only to Paragraph 2.6
and to the  royalty-free,  nonexclusive  license  rights  of the  United  States
Government   pursuant  to  48  CFR  52.227-  14  (Civilian  Agencies)  or  DFARS
252.227-7013  (Defense  Agencies)  during the period of time commencing with the
Effective Date and terminating with the first to occur of:

                  (a)      the expiration  of  ten (10) years  after  the  first
                           commercial  sale  of  a  Licensed  Product  or  first
                           commercial use of a Licensed Process; or

                  (b)      the  expiration  of  twelve  (12)  years  after   the
                           Effective Date of this Agreement.

         2.4. At the end of the exclusive period,  the license granted hereunder
shall become  nonexclusive  and shall extend to the end of the term or terms for
which any Patent  Rights are issued,  unless sooner  terminated  as  hereinafter
provided.  The period of exclusivity may be extended with the written consent of
M.I.T.,  on a field of use  basis,  which  consent  shall  not  unreasonably  be
withheld,  provided that Licensee is a licensee in good standing, owing no fees,
royalties  or any other  monies to  M.I.T.,  and  having  met all the  diligence
milestones  pertaining to the  particular  field of use in which an extension of
the period of exclusivity is under consideration.

         2.5.     M.I.T. reserves  the right to practice under the Patent Rights
for its own noncommercial research purposes.

         2.6.     M.I.T. reserves the right  to use  the  Program,  to  use  and
create derivatives  of the  Program and  to distribute  the Program  and M.I.T.-
created derivatives to third parties for noncommercial research purposes.

         2.7.     Licensee  agrees that Licensed Products  leased or sold in the
United States shall be manufactured substantially in the United States.


301650.001(BF)                          7





         2.8.     In order  to  encourage  and  facilitate  the  development  of
Licensed Products, M.I.T. agrees to perform the work described in the Technology
Transfer Agreement attached to this license as Addendum A.

         2.9.   Licensee  shall  have  the  right  to  enter  into  sublicensing
agreements for the rights, privileges and licenses granted hereunder only during
the exclusive  period of this  Agreement.  Such  sublicenses may extend past the
expiration date of the exclusive  period of this Agreement,  but any exclusivity
of such sublicenses shall expire upon the expiration of Licensee's  exclusivity.
Upon  any  termination  of  this  Agreement,  sublicensees'  rights  shall  also
terminate, subject to Paragraph 13.6 hereof.

         2.10.  Licensee agrees that any sublicenses granted by it shall provide
that the  obligations to M.I.T. of Articles 2, 5, 7, 8, 9, 10, 12, 13, and 15 of
this  Agreement  shall be binding upon the  sublicensee as if it were a party to
this  Agreement.  Licensee  further agrees to attach copies of these Articles to
sublicense agreements.

         2.11.   Licensee  agrees  to  forward  to  M.I.T. a copy of any and all
sublicense agreements promptly upon execution by the parties.

         2.12. Licensee shall not receive from sublicensees anything of value in
lieu of cash payments in consideration  for any sublicense under this Agreement,
without the express prior written permission of M.I.T.

         2.13. The license  granted  hereunder  shall not be construed to confer
any rights  upon  Licensee  by  implication,  estoppel  or  otherwise  as to any
technology not specifically set forth in Appendix A hereof.


                                3. DUE DILIGENCE

         3.1.  Licensee shall use its best efforts to bring one or more Licensed
Products or  Licenses  Processes  to market  through a  thorough,  vigorous  and
diligent  program for  exploitation of the  Intellectual  Property Rights and to
continue active, diligent marketing efforts for one or more Licensed Products or
Licensed Processes throughout the life of this Agreement.


301650.001(BF)                         8












         3.2.     (a)      In addition, pertaining to Field of Use One, Licensee
         shall adhere to the following milestones.

                           (i)      On or before  December  31,  1996,  Licensee
                                    shall deliver a Licensed Product to one site
                                    suitable  for  clinical  testing in Field of
                                    Use One.

                           (ii)     On or before June 30, 1997,  Licensee  shall
                                    deliver  to M.I.T.  clinical  data  obtained
                                    from at least ten (10) patients  enrolled in
                                    the clinical trials referred to in 3.2(a)(i)
                                    above.

                           (iii)    As soon as possible, but in all events on or
                                    before June 30, 1999,  Licensee  shall apply
                                    for FDA approval for  commercial  sales of a
                                    Licensed Product in Field of Use One.

                           (iv)     Licensee   shall  make  sales  of   Licensed
                                    Products  in Field of Use One  according  to
                                    the following schedule:

                                    1998                        at least 1 unit
                                    1999                        at least 5 units
                                    2000                       at least 10 units
                                    2001 and each  year thereafter  at  least 25
                                     units

                  (b)      In addition, pertaining to Field of Use Two, Licensee
                           shall develop a business  plan for  commercialization
                           of the  Intellectual  Property Rights in Field of Use
                           Two and  submit  it to M.I.T.  on or before  June 30,
                           1997.

                  (c)      In  addition,  pertaining  to  Field  of  Use  Three,
                           Licensee  shall seek to include  in the protocols for
                           the  clinical  trials  to  be  conducted  pursuant to
                           Section 3.2(a),  clinical testing directed toward the
                           commercialization of the Intellectual Property Rights
                           in Field of Use Three.   On  or  before September 30,
                           1996,  Licensee  shall  provide  M.I.T.  a definitive
                           business  plan  for  such  commercialization  of  the
                           Intellectual Property Rights in Field of Use Three.

301650.001(BF)                           9





         3.3.     (a)      Failure to comply with paragraphs 3.2(a)(i), (ii), or
                           (iii), shall be  grounds for M.I.T. to terminate this
                           license pursuant to paragraph 13.3 hereof.

                  (b)      Failure to comply with paragraph  3.2(a)(iv) shall be
                           grounds   to  remove   Field  of  Use  One  from  the
                           definition  of  "Exclusive  Fields  of Use",  thereby
                           terminating  Licensee's  exclusive rights to Field of
                           Use One.

         3.4.     Failure to comply  with paragraphs 3.2(b) shall be grounds for
M.I.T. to  terminate the  grant in  paragraph 2.1 of  rights to Field of Use Two
pursuant to paragraph 13.3 hereof.

         3.5.     Failure to comply with  paragraphs 3.2(c) shall be grounds for
M.I.T. to terminate  the grant in  paragraph 2.1 of rights to Field of Use Three
pursuant to paragraph 13.3 hereof.


                                  4. ROYALTIES

         4.1.     For the  rights,  privileges and  license  granted  hereunder,
Licensee shall pay royalties to M.I.T. in the manner hereinafter provided to the
end  of  the  term  of  the  Patent  Rights  or  until this  Agreement  shall be
terminated:

                  (a)      License   Issue   Fee  of   [Confidential   Treatment
                           Requested],  which  said  License  Issue Fee shall be
                           deemed  earned  and due  according  to the  following
                           schedule:

                           (i)      [Confidential Treatment  Requested] shall be
                                    due on the Effective Date.

                           (ii)     [Confidential Treatment Requested] shall  be
                                    due June 15, 1996.

                           (iii)    [Confidential Treatment Requested]  shall be
                                    due  upon  Licensee's  raising the first One
                                    Hundred Thousand Dollars

301650.001(BF)                         10





                                    of investment  capital  directly  related to
                                    the  commercialization  of  the Intellectual
                                    Property Rights.

                  (b)      License  Maintenance  Fees of [Confidential Treatment
                           Requested]  per year  payable  on  January  1,  1997,
                           January 1, 1998  and on  January 1,  1999;  provided,
                           however, that Running Royalties  subsequently due  on
                           Net  Sales  for  each  paid  year, if  any,  shall be
                           creditable  against  the  License Maintenance Fee for
                           said year. License Maintenance Fees paid in excess of
                           Running  Royalties shall not be creditable to Running
                           Royalties for future years.

                  (c)      License  Maintenance Fees of [Confidential  Treatment
                           Requested] per year payable on January 1, 2000 and on
                           January  1,  2001  provided,  however,  that  Running
                           Royalties subsequently due on Net Sales for each said
                           year, if any, shall be creditable against the License
                           Maintenance  Fee for said year.  License  Maintenance
                           Fees paid in excess of Running Royalties shall not be
                           creditable to Running Royalties for future years.

                  (d)      License  Maintenance Fees of [Confidential  Treatment
                           Requested] per year payable on January 1, 2002 and on
                           January 1 of each year thereafter; provided, however,
                           License  Maintenance  Fees may be credited to Running
                           Royalties subsequently due on Net Sales for each said
                           year, if any. License Maintenance Fees paid in excess
                           of  Running  Royalties  shall  not be  creditable  to
                           Running Royalties for future years.

                  (e)      Running Royalties in an amount equal to [Confidential
                           Treatment  Requested]  percent  (__%) of Net Sales of
                           the Licensed  Products and Licenses  Processes  used,
                           leased  or sold by and/or  for  Licensee  and/or  its
                           sublicensees  for  Licensed  Products  which are both
                           made and  leased or sold and for  Licensed  Processes
                           which are both  used and  leased or sold in a country
                           in which there is a valid,  issued  claim of a patent
                           described in either Appendices A or B.


301650.001(BF)                              11












                  (f)      Running Royalties in an amount equal to [Confidential
                           Treatment Requested]  percent (__%)  of Net  Sales of
                           the Licensed  Products  and Licensed  Processes used,
                           leased or  sold  by  and/or for  Licensee  and/or its
                           sublicensees for  Licensed Products  which are either
                           made or  leased or  sold and for  Licensed  Processes
                           which are  either used or leased or sold in a country
                           in which there is a valid,  issued claim  of a patent
                           described  in  either  Appendices  A or B,  or  in  a
                           country in which there  is a pending claim pertaining
                           to M.I.T.  Case 6521L, providing that such country is
                           Canada.

                  (g)      Running Royalties in an amount equal to [Confidential
                           Treatment Requested]  percent (__%) of  Net Sales  of
                           the Licensed Products and  Licensed  Processes  used,
                           leased  or  sold  by  and/or   for  Licensee   and/or
                           its  sublicensees  for  Licensed  Products  which are
                           neither  made nor  leased  nor  sold in  a country in
                           which  there  is  a  valid,  issued claim of a patent
                           described in  either Appendices  A  or B,  but  which
                           utilize the  Copyright and/or  practice  of  run  the
                           Program, as  described in Appendix C and for Licensed
                           Processes which are  neither used nor leased nor sold
                           in  a  country  in  which,  but   which  utilize  the
                           Copyright  and/or  practice  or  run  the  Program as
                           described in Appendix C.

                  (h)      Running Royalties in an amount equal to [Confidential
                           Treatment  Requested]  percent  (__%) of Net Sales of
                           the Program  delivered to End-Users if the Program is
                           sold separately from the Licensed Products.

                  (i)      If Other  Revenue  is greater  than Net  Sales,  then
                           Running Royalties in an amount equal to [Confidential
                           Treatment Requested] (__%) of Other Revenue;

                  (j)      If Other Revenue is less than Net Sales, then Running
                           Royalties  in  an  amount   equal  to   [Confidential
                           Treatment Requested] (__%) of Other Revenue.



301650.001(BF)                           12





         4.2.  All  payments  due  hereunder  shall  be  paid in  full,  without
deduction  of taxes or other fees which may be  imposed  by any  government  and
which shall be paid by Licensee.

         4.3.  No  multiple  royalties  shall be payable  because  any  Licensed
Product,  its  manufacture,  use,  lease or sale are or shall be covered by more
than  one  Intellectual  Property  Rights  patent  application  of  Intellectual
Property Rights patent licensed under this Agreement.

         4.4.  Royalty  payments  shall  be paid in  United  States  dollars  in
Cambridge,  Massachusetts,  or at such  other  place as  M.I.T.  may  reasonably
designate  consistent with the laws and  regulations  controlling in any foreign
country.  If any currency  conversion  shall be required in connection  with the
payment  of  royalties  hereunder,  such  conversion  shall be made by using the
exchange rate prevailing at the Chase Manhattan Bank (N.A.) on the last business
day of the calendar  quarterly  reporting  period to which such royalty payments
relate.

                             5. REPORTS AND RECORDS

         5.1.  Licensee  shall keep  full,  true and  accurate  books of account
containing all particulars  that may be necessary for the purpose of showing the
amounts  payable to M.I.T.  hereunder.  Said  books of account  shall be left at
Licensee's principal place of business or the principal place of business of the
appropriate division of Licensee to which this Agreement relates. Said books and
the  supporting  data shall be open at all  reasonable  times for five (5) years
following the end of the calendar year to which they pertain,  to the inspection
of  M.I.T.  or its  agents  for the  purpose  of  verifying  Licensee's  royalty
statement or  compliance  in other  respects  with this  Agreement.  Should such
inspection lead to the discovery of a greater than Ten Percent (10%) discrepancy
in reporting to M.I.T.'s  detriment,  Licensee agrees to pay the reasonable cost
of such inspection.

         5.2. Licensee shall deliver to M.I.T. true and accurate reports, giving
such  particulars  of the business  conducted  by Licensee and its  sublicensees
under this  Agreement as shall be pertinent  to  diligence  under  Article 3 and
royalty accounting hereunder:


301650.001(BF)                           13





                  (a)      before  the  first  commercial  sale  of  a  Licensed
                           Product or Licensed  Process, annually, on January 31
                           or each year; and

                  (b)      after the first commercial sale of a Licensed Product
                           or Licensed  Process,  quarterly,  within  sixty (60)
                           days  after  March  31,  June  30,  September  30 and
                           December 31, of each year.

         These reports shall include at least the following:

                  (a)      number of Licensed Products manufactured, leased  and
                           sold by and/or for Licensee and all sublicensees;

                  (b)      accounting for all Licensed Processes used or sold by
                           and/or for Licensee and all sublicensees;

                  (c)      accounting for  Net Sales, noting  the deductions and
                           credits applicable as provided in Paragraphs 1.11 and
                           6.3, accounting for Other Revenue;

                  (d)      Running Royalties due under Paragraph 4.1(e) and (f);

                  (e)      Running Royalties due under Paragraph 4.1(g) and (h);

                  (f)      total royalties due; and

                  (g)      names and addresses of all sublicensees of Licensee.

         5.3.     With each such report submitted, Licensee  shall pay to M.I.T.
the royalties due and payable  under  this  Agreement.  If no royalties shall be
due, Licensee shall so report.

         5.4.  On or before  the  ninetieth  (90th) day  following  the close of
Licensee's fiscal year, Licensee shall provide M.I.T. with Licensee's  certified
financial  statements for the preceding fiscal year including,  at a minimum,  a
Balance Sheet and an Operating Statement.


301650.001(BF)                           14





         5.5. The royalty  payments set forth in this  Agreement and amounts due
under Article 6 shall,  if overdue,  bear interest  until payment at a per annum
rate two percent (2%) above the prime rate in effect at the Chase Manhattan Bank
(N.A.) on the due date. The payment of such interest shall not foreclose  M.I.T.
from exercising any other rights it may have as a consequence of the lateness of
any payment.


                              6. PATENT PROSECUTION

         6.1. M.I.T. shall have the administrative  responsibility to apply for,
see,  prompt  issuance of, and maintain  during the term of this  Agreement  the
Patent  Rights in the  United  States  and in the  foreign  countries  listed in
Appendices A and B hereto. Appendix B may be amended by verbal agreement of both
parties,  such  agreement to be confirmed in writing  within ten (10) days.  The
prosecution, filing and maintenance of all Patent Rights patens and applications
shall be the primary responsibility of M.I.T.; provided, however, Licensee shall
have reasonable  opportunities  to advise M.I.T. and shall cooperate with M.I.T.
ion such prosecution, filing and maintenance.

         6.2.     Payment  of  all  fees  and  costs  relating  to  the  filing,
prosecution, and  maintenance of the  Patent Rights  incurred after  the date of
this  Agreement  shall  be  the  responsibility  of  Licensee.   M.I.T.  is  not
financially obliged to maintain and prosecute patents.

         6.3.     M.I.T. agrees  that  Licensee  may  take  a  cumulative   life
of license credit  for expenditures  on  the  Patent Rights,  such credit not to
exceed [Confidential Treatment Requested]  and  to  be  taken  according  to the
following schedule:

                  (a)      Licensee  may credit  their above  referenced  patent
                           prosecution and maintenance  expenditures incurred in
                           a  given  calendar  year  against  up to one  half of
                           License  Maintenance Fees due the following January 1
                           under paragraphs 4.1(b), (c), and (d).

                  (b)      In  the  event  that  Running  Royalties  exceed  the
                           License   Maintenance  Fee  for  a  given  year,  and
                           Licensee owes M.I.T. Running Royalties in addition to
                           the  License   Maintenance  Fee  already  paid,  then
                           Licensee may use their patent prosecution and

301650.001(BF)                              15







                           maintenance  credit  against  up  to  one half of the
                           Running Royalties due paragraphs 4.1(e), (f) and (g).


                                 7. INFRINGEMENT

     7.1.  Licensee  shall  inform  M.I.T.  promptly  in writing of any  alleged
infringement  of the  Intellectual  Property Rights by a third party of which it
becomes  aware  and of any  available  evidence  thereof.  M.I.T.  shall  inform
Licensee  promptly in writing of any alleged  infringement  of the  Intellectual
Property  Rights by a third party of which it becomes aware and of any available
evidence thereof. Within ten (10) business days of such notice the parties shall
confer to determine how best to proceed.

     7.2. During the term of this Agreement,  M.I.T.  shall have the right,  but
shall not be obligated, to prosecute at its own expense all infringements of the
Intellectual  Property Rights and, in furtherance of such right, Licensee hereby
agrees that M.I.T.  may include  Licensee as a party plaintiff in any such suit,
without  expense to  Licensee.  The total cost of any such  infringement  action
commenced or defended solely by M.I.T. shall be borne by M.I.T. and M.I.T. shall
keep any recovery or damages for past infringement derived therefrom.

     7.3. If within six (6) months  after  having  been  notified of any alleged
infringement,  M.I.T.  shall have been  unsuccessful  in persuading  the alleged
infringer  to  desist  and shall not have  brought  and shall not be  diligently
prosecuting an infringement  action,  or if M.I.T.  shall notify Licensee at any
time  prior  thereto of its  intention  not to bring suit  against  any  alleged
infringer for the Field of Use, then,  and in those events only,  Licensee shall
have the right, but shall not be obligated,  to prosecute at its own expense any
infringement  of the  Intellectual  Property  Rights  for the Field of Use,  and
Licensee  may, for such  purposes,  use the name of M.I.T.  as party  plaintiff;
provided,  however,  that such right to bring such an infringement  action shall
remain  in  effect  only  for so  long as the  license  granted  herein  remains
exclusive. No settlement,  consent judgment or other voluntary final disposition
of the suit may be entered  into  without the consent of M.I.T.,  which  consent
shall not unreasonably be withheld.  Licensee shall indemnify M.I.T. against any
order for costs that may be made against M.I.T. in such proceedings.


301650.001(BF)                          16












         7.4. In the event that Licensee shall undertake the enforcement  and/or
defense of the Intellectual Property Rights by litigation, Licensee may withhold
up to fifty percent (50%) of the payments otherwise  thereafter due M.I.T. under
Article 4  hereunder  and apply the same toward  reimbursement  of up to half of
Licensee's  expenses,   including  reasonable  attorneys'  fees,  in  connection
therewith.  Any  recovery  of  damages by  Licensee  for each such suit shall be
applied first in  satisfaction  of any  unreimbursed  expenses and legal fees of
Licensee relating to such suit, and next toward  reimbursement of M.I.T. for any
payments  under  Article 4 past due or  withheld  and  applied  pursuant to this
Article 7. The balance remaining from any such recovery shall be divided so that
the percentage of the recovery due M.I.T.  is calculated by creating a fraction,
the numerator of which is the amount of royalties  withheld,  and denominator of
which is the cost of litigation paid by Licensee, but in no event shall such sum
be less than Ten Percent (10%) of the net recovery.

         7.5.  In  the  event  that  a  declaratory   judgment  action  alleging
invalidity or noninfringement  of any of the Intellectual  Property Rights shall
be brought against Licensee, M.I.T., at its option, shall have the right, within
thirty (30) days after  commencement of such action,  to intervene and take over
the sole defense of the action at its own expense.

         7.6. In any infringement  suit as either party may institute to enforce
the Patent Rights pursuant to this  Agreement,  the other party hereto shall, at
the request  and expense of the party  initiating  such suit,  cooperate  in all
respects and, to the extent possible,  have its employees testify when requested
and make available relevant records, papers,  information,  samples,  specimens,
and the like.

         7.7.  Licensee,  during the exclusive  period of this Agreement,  shall
have the sole  right in  accordance  with the  terms  and  conditions  herein to
sublicense  any  alleged  infringer  for the Field of Use for  future use of the
Intellectual  Property  Rights.  Any upfront  fees as part of such a  sublicense
shall be shared equally  between  Licensee and M.I.T.;  other royalties shall be
treated per Article 4.


                              8. PRODUCT LIABILITY

     8.1.  Licensee  shall at all times  during the term of this  Agreement  and
thereafter,   indemnify,  defend  and  hold  M.I.T.,  its  trustees,  directors,
officers, employees

301650.001(BF)                            17




and  affiliates,   harmless  against  all  claims,   proceedings,   demands  and
liabilities  of any kind  whatsoever,  including  legal  expenses and reasonable
attorneys' fees,  arising out of the death of or injury to any person or persons
or out of any damage to property,  resulting from the  production,  manufacture,
sale, use, lease, consumption or advertisement of the Licensed Product(s) and/or
Licensed Process(es) or arising from any obligation of Licensee hereunder.

         8.2.  Licensee  shall  obtain  and  carry  in  full  force  and  effect
commercial,  general liability insurance which shall protect Licensee and M.I.T.
with respect to events covered by Paragraph 8.1 above.  Such insurance  shall be
written by a  reputable  insurance  company  authorized  to do  business  in the
Commonwealth of Massachusetts,  shall list M.I.T. as an additional named insured
thereunder,  shall be endorsed to include product  liability  coverage and shall
require  thirty  (30) days  written  notice  to be given to M.I.T.  prior to any
cancellation or material change thereof.  The limits of such insurance shall not
be less than One Million Dollars  ($1,000,000)  per occurrence with an aggregate
of Three Million  Dollars  ($3,000,000)  for personal  injury or death,  and One
Million Dollars  ($1,000,000)  per occurrence with an aggregate of Three Million
Dollars  ($3,000,000)  for property damage.  Licensee shall provide M.I.T.  with
Certificates of Insurance evidencing the same.

         8.3. EXCEPT AS OTHERWISE EXPRESSLY SET FORTH IN THIS AGREEMENT, M.I.T.,
ITS  TRUSTEES,   DIRECTORS,   OFFICERS,   EMPLOYEES,   AND  AFFILIATES  MAKE  NO
REPRESENTATIONS AND EXTENT NO WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED,
INCLUDING  BUT NOT  LIMITED TO  WARRANTIES  OF  MERCHANTABILITY,  FITNESS  FOR A
PARTICULAR PURPOSE,  VALIDITY OF PATENT RIGHTS CLAIMS, ISSUED OR PENDING, AND TO
THE  COPYRIGHT  AND THE  ABSENCE  OF LATENT  OR OTHER  DEFECTS,  WHETHER  OR NOT
DISCOVERABLE.  NOTHING IN THIS AGREEMENT SHALL BE CONSTRUED AS A  REPRESENTATION
MADE OR WARRANTY  GIVEN BY M.I.T.  THAT THE  PRACTICE BY LICENSEE OF THE LICENSE
GRANTED  HEREUNDER  SHALL NOT INFRINGE THE PATENT RIGHTS OR THE COPYRIGHT OF ANY
THIRD  PARTY.  IN NO EVENT SHALL  M.I.T.,  ITS  TRUSTEES,  DIRECTORS,  OFFICERS,
EMPLOYEES AND  AFFILIATES BE LIABLE FOR INCIDENTAL OR  CONSEQUENTIAL  DAMAGES OF
ANY KIND,  INCLUDING  ECONOMIC  DAMAGE OR INJURY TO PROPERTY  AND LOST  PROFITS,
REGARDLESS OF WHETHER M.I.T. SHALL BE ADVISED, SHALL

301650.001(BF)                         18





HAVE  OTHER  REASON TO KNOW,  OR IN FACT SHALL  KNOW OF THE  POSSIBILITY  OF THE
FOREGOING.


                               9. EXPORT CONTROLS

         Licensee  acknowledges  that it is  subject to United  States  laws and
regulations  controlling  the  export  of  technical  data,  computer  software,
laboratory  prototypes and other commodities  (including the Arms Export Control
Act,  as  amended  and  the  United  States   Department   of  Commerce   Export
Administration  Regulations).  The  transfer of such items may require a license
from the  cognizant  agency  of the  United  States  Government  and/or  written
assurances  by Licensee that Licensee  shall not export data or  commodities  to
certain foreign countries without prior approval of such agency.  M.I.T. neither
represents that a license shall not be required nor that, if required,  it shall
be issued.


                              10. NON-USE OF NAMES

         Licensee  shall not use the names or  trademarks  of the  Massachusetts
Institute of Technology or Lincoln Laboratory, nor any adaption thereof, nor the
names  of any of  their  employees,  in any  advertising,  promotional  or sales
literature without prior written consent obtained from M.I.T., or said employee,
in each case, except that Licensee may state that it is licensed by M.I.T. under
one or more of the patents and/or applications comprising the Patent Rights, and
that it has a license to the Copyright.


                                 11. ASSIGNMENT

         This  Agreement  is not  assignable  and any  attempt to do so shall be
void.


                             12. DISPUTE RESOLUTION

         12.1.  Except  for the  right  of  either  party to apply to a court of
competent   jurisdiction  for  a  temporary  restraining  order,  a  preliminary
injunction,  or other  equitable  relief to  preserve  the status quo or prevent
irreparable harm, any and all claims, disputes

301650.001(BF)                          19





or  controversies  arising under,  out of, on in connection  with the Agreement,
including any dispute  relating to patent  validity or  infringement,  which the
parties  shall be unable to resolve  within sixty (60) days shall be mediated in
good faith. The party raising such dispute shall promptly advise the other party
of such claim, dispute or controversy in a writing which describes in reasonable
detail the nature of such  dispute.  By not later  than five (5)  business  days
after the recipient  has received such notice of dispute,  each party shall have
selected for itself a  representative  who shall have the authority to bind such
party,  and shall  additionally  have  advised the other party in writing of the
name and title of such representative.  By not later than ten (10) business days
after the date of such notice of  dispute,  the party  against  whom the dispute
shall be  raised  shall  select a  mediation  firm in the  Boston  area and such
representatives  shall  schedule a date with such firm for a mediation  hearing.
The  parties  shall  enter into good faith  mediation  and shall share the costs
equally. If the representatives of the parties have not been able to resolve the
dispute within fifteen (15) business days after such mediation hearing, then any
and  all  claims,  disputes  or  controversies  arising  under,  out  of,  or in
connection  with  this  Agreement,  including  any  dispute  relating  to patent
validity or infringement,  shall be resolved by final and binding arbitration in
Boston,  Massachusetts under the rules of the American Arbitration  Association,
or the Patent Arbitration Rules if applicable,  then obtaining.  The arbitrators
shall  have no power to add to,  subtract  from or  modify  any of the  terms or
conditions of this Agreement,  not to award punitive damages. Any award rendered
in such  arbitration may be enforced by either party in either the courts of the
Commonwealth  of  Massachusetts  or in the United States  District Court for the
District of  Massachusetts,  to whose  jurisdiction for such purposes M.I.T. and
Licensee each hereby irrevocably consents and submits.

         12.2.  Notwithstanding the foregoing,  nothing in this Article shall be
construed to waive any rights or timely performance of any obligations  existing
under this Agreement.


                                 13. TERMINATION

         13.1. If Licensee shall cease to carry on its business,  this Agreement
shall terminate upon notice by M.I.T.

         13.2.    Should Licensee  fail to make  any payment whatsoever  due and
payable to M.I.T. hereunder,  M.I.T. shall  have the  right  to  terminate  this

301650.001(BF)                                     20




Agreement effective on thirty (30) days' notice,  unless Licensee shall make all
such payments to M.I.T.  within said thirty (30) day period. Upon the expiration
of the thirty (30) day period, if Licensee shall not have made all such payments
to  M.I.T.,   the  rights,   privileges  and  license  granted  hereunder  shall
automatically terminate.

         13.3. Upon any material breach or default of this Agreement by Licensee
(including,  but not limited to, breach or default under Paragraph  3.3),  other
than those  occurrences set out in Paragraphs 13.1 and 13.2  hereinabove,  which
shall always take  precedence in that order over any material  breach or default
referred to in this  Paragraph  13.3,  M.I.T.  shall have the right to terminate
this  Agreement  and  the  rights,  privileges  and  license  granted  hereunder
effective on ninety (90) days' notice to Licensee. Such termination shall become
automatically  effective  unless  Licensee  shall have  cured any such  material
breach or default prior to the expiration of the ninety (90) days period.

         13.4.    Licensee shall have the  right to terminate  this Agreement at
any time on six (6) months'  notice to M.I.T., and  upon payment  of all amounts
due M.I.T. through the effective date of the termination.

         13.5. Upon termination of this Agreement for any reason, nothing herein
shall be construed  to release  either  party from any  obligation  that matured
prior to the effective date of such  termination;  and Articles 1, 8, 9, 10, 12,
13.5,  13.6,  and 15  shall  survive  any  such  termination.  Licensee  and any
sublicensee thereof may, however,  after the effective date of such termination,
sell all Licensed  Products,  and complete  Licensed  Products in the process of
manufacture  at the time of such  termination  and sell the same,  provided that
Licensee  shall make the  payments  to M.I.T.  as  required by Article 4 of this
Agreement and shall submit the reports required by Article 5 hereof.

         13.6.    Upon termination of this Agreement for any reason:

                  (a)      Licensee shall provide M.I.T. with  written assurance
                           that the  original and all  copies of the Program and
                           Derivatives, have been destroyed,  except that,  upon
                           prior written authorization from  M.I.T. Licensee may
                           retain a copy for archival purposes; and

                  (b)      the rights of  End-Users to the use  and enjoyment of
                           the  Licensed  Products  shall  not  be  abridged  or
                           diminished  in  any way,  except  that  any  End-User
                           leasing or sublicensing the Licensed Products and not

301650.001(BF)                                     21




                           then in  default  shall  have  the  right to obtain a
                           lease  or  sublicense  directly  from  M.I.T.   under
                           reasonable terms and conditions.

     13.7.  Upon  termination of this Agreement for any reason,  any sublicensee
not then in default  shall have the right to seek a license  from M.I.T.  M.I.T.
agrees to  negotiate  such  licenses  in good faith under  reasonable  terms and
conditions.



                              14. PAYMENTS, NOTICES
                            AND OTHER COMMUNICATIONS

         Any payment,  notice or other communication  pursuant to this Agreement
shall be sufficiently made or given on the date of mailing if sent to such party
by  certified  first class mail,  return  receipt  requested,  postage  prepaid,
addressed to it at its address below or as it shall  designate by written notice
given to the other party:

         In the case of M.I.T.:

                  Director
                  Technology Licensing Office
                  Massachusetts Institute of Technology
                  Room E32-300
                  Cambridge, Massachusetts  02139

         In the case of Licensee:

                  Augustine Y. Cheung
                  Chairman and CEO
                  Cheung Laboratories, Inc.
                  10220-I Old Columbia Road
                  Columbia, MD  21046-1705


                          15. MISCELLANEOUS PROVISIONS


301650.001(BF)                                     22




         15.1. All disputes arising out of or related to this Agreement,  or the
performance,  enforcement,  breach  or  termination  hereof,  and  any  remedies
relating  thereto,  shall be  construed,  governed,  interpreted  and applied in
accordance with the laws of the Commonwealth of  Massachusetts,  U.S.A.,  except
that  questions  affecting  the  construction  and effect of any patent shall be
determined  by the law of the  country  in which  the  patent  shall  have  been
granted.

         15.2. The parties hereto acknowledge that this Agreement sets forth the
entire  Agreement  and  understanding  of the  parties  hereto as to the subject
matter hereof, and shall not be subject to any change or modification  except by
the execution of a written instrument signed by the parties.

         15.3. The provisions of this Agreement are severable,  and in the event
that any  provisions  of this  Agreement  shall be  determined  to be invalid or
unenforceable  under  any  controlling  body  of the  law,  such  invalidity  or
unenforceability  shall not in any way affect the validity of  enforceability of
the remaining provisions hereof.

         15.4.  Licensee agrees to mark the Licensed Products sold in the United
States with all applicable  United States patent numbers.  All Licensed Products
shipped  to or sold in other  countries  shall be  marked in such a manner as to
conform with the patent laws and practice of the country of manufacture or sale.

         15.5.  The failure of either  party to assert a right  hereunder  or to
insist upon  compliance  with any term or condition of this Agreement  shall not
constitute  a waiver of that  right or excuse a similar  subsequent  failure  to
perform any such term or condition by the other party.

         IN WITNESS  WHEREOF,  the parties have duly executed this Agreement the
day and year set forth below.

MASSACHUSETTS INSTITUTE OF                  CHEUNG LABORATORIES, INC.
TECHNOLOGY


By:/s/______________________________
By:/s/_______________________________


Name:_______________________________        Name:______________________________
Title:_______________________________       Title:_____________________________
 
Date:                                       Date:


                                   APPENDIX A


301650.001(BF)                          23







PATENT RIGHTS ON THE EFFECTIVE DATE

UNITED STATES PATENT RIGHTS

M.I.T. Case No. 5493L
U.S. Patent No. 5,251,645
"Adaptive Nulling Hyperthermia Array:
By Alan Fenn


M.I.T. Case No. 6512L
U.S. Serial Number 157,928
"Minimally Invasive Monopole Phased Array Hyperthermia Applicators
For Treating Breast Carcinomas"
By Alan Fenn


FOREIGN PATENT RIGHTS

M.I.T. Case No. 6512L
PCT Application designating EPO, Canada and Japan
"Minimally Invasive Monopole Phased Hyperthermia Applicators
For Treating Breast Carcinomas"
By Alan Fenn




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                                   APPENDIX B

1.    Foreign  patent applications  and patents  within the  Patent Rights as of
Effective Date:


M.I.T. Case No. 6512L
PCT Application designating EPO, Canada and Japan
"Minimally Invasive Monopole Phased Hyperthermia Applicators
For Treating Breast Carcinomas"
By Alan Fenn



2.       Foreign countries in which Patent Rights shall be filed, prosecuted and
maintained in accordance with Article 6.


No additional instructions as of February 23, 1996.




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                                   APPENDIX C

M.I.T. COPYRIGHTED SOFTWARE

M.I.T. Case No. 7299LS
"NULLGSC"
By Alan Fenn


M.I.T. Case No. 7298LS
"FOCUSGSC"
By Alan Fenn


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[Portions  of this  document are subject to requests of  confidential  treatment
filed with the Securities and Exchange Commission]

                           LICENSE AGREEMENT


         AGREEMENT,  dated August , 1996, by and between MMTC,  INC.  ("MMTC") a
Delaware  corporation having its principal  executive offices at 12 Roszel Road,
Suite A-203, Princeton, New Jersey 08450, and CHEUNG LABORATORIES, INC. ("CLI"),
a Maryland  corporation  having its principal  executive  offices at 10220-I Old
Columbia Rd. Columbia, MD 21046.

         WHEREAS,  MMTC owns or controls certain patents relating to a microwave
balloon  catheter  which may have  application  for treatment of diseases of the
prostate;

         WHEREAS, CLI desires to acquire a perpetual,  exclusive,  and worldwide
license under said patents for use in the Field (as defined below);

         WHEREAS,  MMTC is  willing  to grant  CLI said  license  for use in the
Field.

         NOW, THEREFORE, in consideration of the mutual covenants and agreements
provided herein, MMTC and CLI hereby agree as follows:


                                    SECTION 1 - DEFINITIONS

         For  purposes of this  Agreement  the  following  definitions  shall be
applicable:

         1.1 "Affiliate" shall mean, with respect to any party, a person,  firm,
partnership, trust, company or other entity which, directly or indirectly, ( i )
owns or controls said party,  or (ii) is owned or controlled by such party or by
any person,  firm,  partnership,  trust,  company or other  entity which owns or
controls,  directly or indirectly, said party. For purposes of this Section 1.1,
"owned" or "owns" shall mean the legal or beneficial  ownership of fifty percent
(50 %) or more of the issued and voting  capital or other  share  participation,
and  "controls"  or  "controlled"  shall mean the power to vote or direct  fifty
percent (50 %) or more of the voting  power or  otherwise  to direct the affairs
thereof, but only for so long as said ownership or control shall continue.


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         1.2 "Field"  shall mean the  treatment of prostatic  disease in humans,
excepting the treatment of cancer of the prostate.

         1.3 "Licensed  Patents"  shall mean only all patents listed in Appendix
I,  annexed  hereto and made a part hereof and any patents  which may issue from
applications   listed   on   Appendix   I,   together   with  all   divisionals,
continuations-in-part, patents of additions and extensions and reissues thereof.

         1.4 "Licensed  Products"  shall mean anything the  manufacture,  use or
sale of which would,  in the absence of a license,  infringe any of the Licensed
Patents and is used in the Field.

         1.5 "Net Sales"  shall mean gross sales of  Licensed  Products  sold by
CLI, its Affiliates and  sublicensees to third parties,  less the total of ( i )
ordinary  and  customary  cash and  trade  discounts,  ( ii )  returns,  ( iii )
allowances,  ( iv ) commissions  to independent  sales agents,  and (v ) excise,
sales or use taxes,  other  consumption  taxes,  customs  duties and  compulsory
payments to governmental authorities actually paid or deducted which are related
to gross sales of Licensed Products sold by CLI, its Affiliates and sublicensees
to their  distributors but shall not include sales by such distributors to third
parties.  In the event  that any  component  or item  within the  definition  of
"Licensed  Product"  hereunder is separately sold and is also sold as part of or
in  conjunction  with  another  significant  component  which is not  within the
definition of "Licensed Product",  then Net Sales thereof shall be determined as
if such item or component had been sold separately.

         1.6  "Nonpatent   Countries"  shall  mean  those  countries  where  the
manufacture, use or sale of the Licensed Products does not infringe an unexpired
Licensed Patent applicable to that country.

         1.7  "Patent   Countries"   shall  mean  those   countries   where  the
manufacture,  use or sale of the Licensed  Products  would,  in the absence of a
license, infringe an unexpired Licensed Patent applicable to that country.

         1.8 "Payment Computation Period" shall mean each fiscal quarter, or any
portion thereof,  ending on the last day of the third, sixth, ninth, and twelfth
accounting  periods of a given CLI fiscal year.  In the event CLI should  change
its fiscal year end so that CLI has a  transitional  fiscal year which is longer


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or  shorter  than  twelve  months,  the  Payment  Computation  Periods  for such
transitional  fiscal  year  shall  be  in  accordance  with  generally  accepted
accounting  principles and approximately equal to the length of three (3) fiscal
accounting periods in a fiscal year consisting of twelve months.

                          SECTION 2 - GRANT OF LICENSE

         2.1 Subject to the terms of this Agreement,  MMTC hereby grants to CLI,
and CLI hereby accepts, a perpetual,  exclusive and worldwide license,  to make,
have made,  use and sell the Licensed  Products in the Field.  It is  understood
that the foregoing  exclusive license grants to CLI the rights enumerated to the
exclusion of all other parties in the Field, including MMTC and its Affiliates.

                     SECTION 3 - LICENSE FEES AND ROYALTIES

         3.1 In consideration  of the patent  licenses,  CLI shall pay to MMTC a
license fee in the total  amount of  [Confidential  Treatment  Requested]  which
shall be payable within thirty (30) days after execution of this Agreement.  The
foregoing license fee paid to MMTC shall be creditable  against future royalties
due under Section 3.3 hereof.

         3.2 CLI shall pay MMTC an additional  license fee ("Additional  License
Fee") of [Confidential  Treatment Requested] for each failure by CLI to meet any
of the following development milestones by the specified date:

         ( i )    to commence a clinical safety trial with  not  less  than  ten
                  (10) patients by March 31, 1997;

         ( ii )   to file IDE within 6 months after signing of agreement; or

         ( iii )  to commence  clinical efficacy immediately upon receipt of IDE
                  approval.

CLI shall pay any required Additional License Fee to MMTC within sixty (60) days
after the  applicable  date set forth in  Section  3.2 ( i ), ( ii ), or ( iii )
above. CLI shall

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provide MMTC with written  notification  that it has met each of the development
milestones  set forth  above in  Section  3.2 ( i ) , ( ii ), and ( iii ) within
sixty (60) days of meeting such  milestone.  Notwithstanding  the  provisions of
this Section 3.2 , if CLI should fail to meet any of the development  milestones
set forth  above in Section 3.2 ( i ), ( ii ), or ( iii ), in lieu of paying the
required  Additional  License  Fee , CLI,  at its  option,  may  terminate  this
Agreement  and  relinquish  all its rights under this  Agreement to the Licensed
Patents. If CLI should fail to meet any of the development  milestones set forth
above  in  Section  3.2 ( i ), ( ii ),  or ( iii ) and  should  fail  to pay the
required  Additional  License  Fee,  MMTC,  at its option,  may  terminate  this
Agreement as provided in Section 12.2 hereof.  All Additional  License Fees paid
by CLI to MMTC shall be creditable  against  future  royalties due under Section
3.3 hereof.

         3.3 In  consideration  of the license  granted to CLI under Section 2.1
hereof , CLI shall pay to MMTC royalties based on Net Sales of Licensed Products
in Patent Countries as follows:

          ( i )   At  the  rate  of [Confidential Treatment Requested] of annual
Net Sales.

The royalties  payable under this Section 3.3 shall only be payable on Net Sales
in  Patent  Countries  and  shall  not be  payable  on Net  Sales  in  Nonpatent
Countries, regardless of the country of manufacture of the Licensed Product. The
duration of royalty  payments  under this section 3.3 shall be  determined  on a
county-by-country  basis and,  subject to the provisions of Sections 6.1 and 8.3
hereof,  shall  continue in each  country  until the  expiration  of the last to
expire of the  Licensed  Patents in such  country  with  claims  directed to the
Licensed Product sold in such country by CLI, its Affiliates and sublicensees.

         3.4 CLI  shall  pay MMTC  minimum  annual  royalties  of  [confidential
treatment requested] for a period of seven (7) years commencing with the earlier
of (i) the first full CLI fiscal year following the first  commercial  sale of a
Licensed  Product in the United  States and ( ii ) CLI's 2000  fiscal  year (the
fiscal year  beginning  after  December 31,  1999).  In the event the  royalties
payable  pursuant  to Section  3.3 hereof for any CLI fiscal year should be less
than the minimum annual royalties  payable for such fiscal year pursuant to this
section 3.4, then CLI, within sixty (60) days after the end of such fiscal year,
shall pay  to MMTC  an additional  royalty for  such fiscal  year which shall be

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equal to the difference  between the minimum annual royalty payable  pursuant to
this  Section 3.4 and the royalty  payable  pursuant  to Section  3.3.  for such
fiscal year. Any  additional  royalties paid by CLI pursuant to this Section 3.4
shall be creditable  against future  royalties due under Section 3.3 hereof.  If
CLI should  fail to pay MMTC the  additional  royalties  under this  Section 3.4
hereof for any CLI fiscal  year,  MMTC shall have the right,  at its option,  to
terminate this Agreement pursuant to Section 12.2 hereof. If CLI terminates this
Agreement  pursuant  to Sections  12.1 or 12.3,  CLI  obligations  to pay annual
minimum  royalties  pursuant to this Section 3.4 shall cease as of the effective
date of termination.

                    SECTION 4 - PAYMENT PROCEDURES, REPORTS,
                          RECORDS, TAXES, AND AUDITING

         4.1 Sales between or among CLI, its Affiliates and  sublicensees  shall
not be  subject  to  royalties  under  Section  3.3  hereof,  but in such  cases
royalties  shall be  calculated  upon Net Sales by such  persons to  independent
third parties,  including distributors.  CLI shall be responsible for payment of
any royalties  accrued on sales of Licensed  Products to such independent  third
parties through its Affiliates or sublicensees.

         4.2 CLI shall pay to MMTC  royalties  on Net Sales in Patent  Countries
during each Payment  Computation  Period within sixty (60) days after the end of
each such Payment Computation Period, and each payment shall be accompanied by a
report identifying the Licensed Product, the Net Sales in Patent Countries,  and
the royalties  payable to MMTC,  as well as  computation  thereof.  Said reports
shall be certified as true and correct by the  Controller  of CLI.  Said reports
shall be kept  confidential  by MMTC and not  disclosed to any party (other than
accountants  under  Section  4.3 hereof and  MMTC's  attorneys  who shall all be
subject to the same  obligations  of  confidentiality  as those  imposed on MMTC
hereunder) And shall only be used for the purposes of this Agreement.

         4.3 CLI shall, and shall cause its Affiliates and sublicensees to, keep
full and  accurate  books and  records  setting  forth  gross  sales of Licensed
Products  and  Net  Sales  in  Patent  Countries  and  amounts  payable  to MMTC
hereunder.  CLI shall permit MMTC, at MMTC's expense,  by independent  certified
public accountants employed by MMTC and acceptable to CLI, to examine such books
and records at any reasonable  time, but not later than two (2) years  following
the rendering of any

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such reports,  accountings, and payments. Such independent accountants shall not
disclose  to MMTC  any of CLI's  cost  data.  The  opinion  of said  independent
accountants regarding such reports,  accountings,  and payments shall be binding
on the parties hereto.

                           SECTION 5 - CONFIDENTIALITY

         5.1  During  the term of this  Agreement  and for a period  of ten (10)
years after  expiration or termination  hereof (except in case of termination by
MMTC under Sections 12.2 and 12.3 hereof),  MMTC shall keep confidential and not
disclose to others or use for any purpose,  other than as authorized herein, and
know-how,  data or information  directed to Licensed Products which is disclosed
to MMTC or its Affiliates by CLI; provided,  however, the foregoing  obligations
of confidentiality and non-use shall not apply to the extent that such know-how,
data and information is:

         ( i )    already known to MMTC at the time of disclosure  hereunder  of
                  hereafter developed  by MMTC  independent  of  any  disclosure
                  hereunder as MMTC can demonstrate by competent proof; or

         ( ii )   publicly  known prior  to or  after disclosure hereunder other
                  than through acts or omissions of MMTC, its Affiliates, or its
                  Affiliates' employees.

         5.2  During the term of this  Agreement  and for the period of ten (10)
years after expiration of termination  hereof,  CLI shall keep  confidential and
not disclose to others or use for any purpose,  other than as authorized herein,
and know-how,  data or information directed to the Licensed Products or Licensed
Patents which is disclosed to CLI or its Affiliates by MMTC; provided,  however,
the foregoing  obligations or confidentiality and non-use shall not apply to the
extent that such know-how, data and information is:

         ( i )    already known to  CLI at the  time of  disclosure hereunder or
                  hereafter  developed  by  CLI  independent  of  any disclosure
                  hereunder as CLI can demonstrate by competent proof; or


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         ( ii )   publicly known  prior to or  after disclosure  hereunder other
                  than through acts  or omissions of CLI, its Affiliates, or its
                  Affiliates employees; or

         ( iii )  disclosed  in good  faith to  CLI by  a third  party  under  a
                  reasonable claim of right; or

         ( iv )   disclosed to  third  parties under  a secrecy  agreement  with
                  essentially  the   same  confidentiality provisions   provided
                  herein for use solely in connection with CLI's exercise of its
                  rights under this Agreement.

Disclosure may be made by CLI to governmental agencies to the extent required or
desirable to secure governmental approval for marketing of Licensed Products and
to preclinical and clinical investigators where necessary or desirable for their
information  to the extent normal and usual in the custom of the trade and under
a secrecy agreement with  confidentiality  provisions which are similar to those
contained herein.  Nothing herein shall be deemed to limit the right of clinical
investigators from publishing the results of their work.

                       SECTION 6 - REDUCTION OF ROYALTIES


         6.1 Royalties  payable by CLI to MMTC under Section 3.3 hereof shall be
reduced as follows:

         ( i )    If CLI or its Affiliates  or sublicensees reasonably determine
                  in good faith with  respect  to  any  Patent  Country that, in
                  order  to  avoid  infringement  of  any  patent  not  licensed
                  hereunder, it is  reasonably  necessary  to  obtain  a license
                  regarding  Licensed  Products  under  any  patent not licensed
                  hereunder in  order to  make, use or sell Licensed Products in
                  such country  and to  pay a  royalty under  such  license, CLI
                  shall  notify  MMTC,  and  CLI's  obligations to pay royalties
                  under  Section 3.3 hereof shall be reduced with respect to Net
                  Sales in  such  Patent Country  by an  amount  equal  to fifty
                  percent  (50%)  of  the  royalty payable  by  CLI  under  such
                  additional  license.  CLI  shall, however,  make  a good faith
                  attempt  to  negotiate  the  royalty   rate  and   calculation

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                  of  royalties  payable  to such third  parties  with a view to
                  minimizing  the  royalty to be deducted under this Section 6.1
                  (i).

         ( ii )   If a  third  party  obtains, by order, decree or grant  from a
                  competent  governmental  authority  in  any  Patent Country, a
                  compulsory license under the Licensed Patents authorizing such
                  third party  to  manufacture, use or sell any Licensed Product
                  in such country, MMTC shall give prompt notice to CLI.  During
                  the period of time sales are made  pursuant to such compulsory
                  license, CLI's obligations to pay royalties  under Section 3.3
                  hereof with respect to sales in such country shall be  reduced
                  to the rate payable to MMTC by said third party.


                          SECTION 7 - COMMERCIALIZATION

         7.1 Subject to the  provisions  of Sections  3.3. and 3.4, CLI will use
reasonable  efforts to market  Licensed  Products in such  countries  where such
marketing  will  be  commercially  reasonable  to CLI  under  the  circumstances
pertaining from time to time. Notwithstanding the foregoing , but subject to the
provisions of Section 3.3 and 3.4,  nothing in this Agreement  shall require CLI
to maximize  sales of Licensed  Products  nor prevent  CLI,  its  Affiliates  or
sublicensees  from  manufacturing,  using or selling in any country any products
similar to or  competitive  with the  Licensed  Products.  MMTC also agrees that
nothing in this Agreement  shall in any way limit CLI's sole and exclusive right
to  determine,   in  its   discretion,   the  timing  or  manner  of  marketing,
manufacturing  or  advertising  Licensed  Products,   provided  such  marketing,
manufacturing,  or  advertising  is  in  compliance  with  applicable  laws  and
regulations.

                               SECTION 8 - PATENTS

         8.1 MMTC and CLI  shall  cooperate  in  connection  with the  continued
prosecution  by MMTC of the patent  applications  listed on  Appendix  I. If CLI
desires that MMTC file any application for a patent in specific  countries other
than  those  enumerated  on  Appendix  I  or  file  any  patent  application  on
improvements  and variations upon inventions  disclosed in the Licensed  Patents
for use in the Field,  CLI shall advise MMTC of such countries or  improvements,
variations  or  inventions,  as the  case  may be.  Provided  that  MMTC  has no


301650.001(BF)                       8






reasonable  objection thereto,  MMTC shall thereupon file patent applications as
requested.  So long as this Agreement is in effect, CLI shall pay the reasonable
expenses  incurred after the date of this Agreement , including  reasonable fees
for patent counsel, for filing and prosecuting the patent applications listed on
Appendix I and such other patent application filing requested by CLI pursuant to
this Section 8.1. In addition,  MMTC shall take all necessary  steps and pay all
expenses  necessary to maintain for the full life thereof all Licensed  Patents,
and,  so long as this  Agreement  is in  effect,  CLI shall  reimburse  MMTC its
reasonable  expenses in connection  therewith.  MMTC agrees to sign such further
authorizations  and instruments and take such further action as may be requested
by CLI to implement  the  foregoing.  In  connection  with any patent filing and
prosecution  pursuant to this Section 8.1, the  cooperation  between the parties
shall include, without limitation:

         ( i )    CLI  having  full  access  to  all  documentation, filings and
                  communications  to or from  the respective patent offices, and
                  shall be  kept fully  advised as to  the status of all pending
                  applications;

         ( ii )   MMTC and its agents and attorneys consulting with CLI prior to
                  taking  any action  or making  any  filing  or  submission  in
                  connection with such patent prosecutions; and

         ( iii )  MMTC   and   its    agents   and    attorneys    giving    due
                  consideration to all suggestions and comments of CLI regarding
                  any aspect of such patent prosecutions.

         8.2 If any claim  relating  to  Licensed  Patents  becomes,  within any
Patent  Country,  the  subject of a  judgment,  decree or  decision  of a court,
tribunal,  or other  authority  of  competent  jurisdiction  , which  judgement,
decree, or decision is or becomes final (there being no further right of review)
and  adjudicates  the validity,  enforceability,  scope,  or infringement of the
same, the construction of such claim in such judgment,  decree or decision shall
be  followed  thereafter  in such  country in  determining  whether a product is
licensed hereunder, not only as to such claim but also as to all other claims to
which such construction reasonably applies. If at any time there are two or more
conflicting  final  judgments,  decrees,  or decisions  with respect to the same
claim, the decision of the higher tribunal shall thereafter control,  but if the
tribunal be of equal rank,  then the final  judgment,  decree,  or decision more
favorable  to such claim  shall  control  unless and until the  majority of such
tribunals of

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equal rank adopt or follow a less favorable final judgment, decree, or decision,
in which event the latter shall control.

         8.3 In the event any  infringement  action shall be brought  within any
Patent Country against CLI or any of its Affiliates or  sublicensees  because of
the  manufacture,  use or sale of Licensed  Products,  CLI shall promptly notify
MMTC  thereof.  CLI  shall  continue  to  pay  royalties  hereunder  during  the
continuance of such infringement  action and all appeals thereof,  provided that
CLI or MMTC shall defend such  action.  If neither CLI nor MMTC shall assume the
defense of such  infringement  action,  upon request by CLI to MMTC, then during
the pendency of such  infringement  action,  CLI's  obligations to pay royalties
under Section 3.3 with respect to sales in such country shall cease.

         8.4 If any third party shall, in the reasonable  opinion of CLI, within
any Patent  Country,  infringe any of the Licensed  Patents,  CLI shall promptly
notify  MMTC.  CLI shall have the right to bring suit and to take  action in its
own name or in the name of MMTC  where  necessary.  CLI and MMTC  shall,  at the
other's  request,  take all action  necessary to assist in such suits (including
joining as a party). If MMTC is required or requested by CLI to join in any suit
brought by CLI,  MMTC may be  represented  at CLI's expense by counsel of MMTC's
choice,  provided that the expense is reasonable and the hourly rates charged by
MMTC's counsel are not greater than those of CLI's counsel on the same suit. Any
monetary recovery in connection with such  infringement  action shall be applied
to reimburse MMTC and CLI for their out-of-pocket expenses (including reasonable
attorneys'  fees and any amounts paid  hereunder by CLI to MMTC for employees or
counsel  fees) in  prosecuting  such  infringement.  Any balance shall be shared
equally  between CLI and MMTC. If such  recovery is less than the  out-of-pocket
expenses,  reimbursement shall be on a pro-rated basis. CLI's obligations to pay
royalties  to MMTC  pursuant  to  Sections  3.3 and 3.4 shall not be  reduced or
diminished because of the pendency of any infringement action.

         8.5 MMTC will cooperate with CLI in the defense of any suit,  action or
proceeding   against  CLI  alleging  the  infringement  of  a  patent  or  other
intellectual  property  right owned by a third party by reason of the use by CLI
of the Licensed Patents in the manufacture, use or sale of the Licensed Products
or in the exercise of any other right  granted  hereunder to CLI. CLI shall give
MMTC prompt notice of the commencement of any such suit, action or proceeding or
claim of infringement.

301650.001(BF)                    10





MMTC shall give to CLI all authority  (including the right to exclusive  control
of the defense of any such suit, action or proceeding and the exclusive right to
compromise,  litigate,  settle  or  otherwise  dispose  of any  suit,  action or
proceeding),  information and assistance  necessary to defend or settle any such
suit,  action or proceeding.  CLI may join MMTC as a defendant,  if necessary or
desirable,  and MMTC shall  execute all  documents  and take all other  actions,
including giving testimony,  which may be reasonably required in connection with
the defense of such suit, action or proceeding. CLI agrees to reimburse MMTC for
any costs and  expenses to the extent such costs and  expenses  are  approved in
advance by CLI.

         8.6 CLI shall mark all Licensed  Products made,  used or sold under the
terms of this Agreement, or their containers, in accordance with the patent laws
of the country where made, used or sold.

         8.7  Anything  to  the  contrary  notwithstanding  in  this  Section  8
(including use of the word  "reimburse") , CLI shall pay MMTC in advance for all
costs and expenses,  other than legal fees and expenses,  which will be incurred
by MMTC in connection  with Section 8. With respect to  reimbursement  by CLI of
legal fees and  expenses  incurred by MMTC  pursuant to Section 8, CLI shall pay
such legal fees and expenses  directly to MMTC's  legal  counsel  promptly  upon
MMTC's  submission  to CLI of bills for such  legal fees and  expenses  and MMTC
shall not be required to first pay such legal fees and expenses in order to seek
reimbursement from CLI.

                    SECTION 9 - REPRESENTATION AND WARRANTIES

         9.1  MMTC hereby represents and warrants to CLI as follows:

         ( i )    MMTC has the corporate  power and  authority  to  execute  and
                  deliver   this   Agreement  and  to  perform  its  obligations
                  hereunder, and the execution, delivery and performance of this
                  Agreement by MMTC have been duly  and validly  authorized  and
                  approved  by proper corporate action on the  part of MMTC  and
                  MMTC  has  taken  all  other  action  required  by  law,   its
                  corporate statutes, certificate of incorporation or by-laws or
                  any  agreement  to  which it  is a party or to which it may be
                  subject required  to  authorize such  execution,  delivery and
                  performance.   Assuming   due   authorization,  execution  and
                  delivery on the  part of CLI,  this  Agreement  constitutes  a
                  legal,  valid  and  binding  obligation  of  MMTC  enforceable

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                  against  MMTC  in  accordance  with its terms, except  as  the
                  enforceability    thereof   may   be   limited  by  applicable
                  bankruptcy,  insolvency, reorganization  or other similar laws
                  of general  application  relating to  creditors' rights.

         ( ii )   To the best of MMTC's knowledge, the execution and delivery of
                  this  Agreement  by  MMTC   and   the   performance   by  MMTC
                  contemplated  hereunder  will  not violate any ordinance, law,
                  decree  or  government regulation or any order of any court or
                  other   governmental   department,   authority,   agency    or
                  instrumentality thereof.

         ( iii)   Except as set forth in that certain letter dated May 14, 1992,
                  from   MMTC  to  CLI,  a  copy  of which is attached hereto as
                  Appendix II, to the best of MMTC's   knowledge, as of the date
                  hereof, the issued  Licensed Patents are valid and enforceable
                  patents  and  MMTC  has  no  knowledge that any third party is
                  infringing such Licensed Patents or  that the manufacture, use
                  and sale by CLI of  Licensed Products  will infringe any other
                  patents of MMTC or its Affiliates or patents of third parties.
                  Appendix I  lists all  patents and patent applications related
                  to  the  Licensed  Product  beneficially  owned by MMTC or its
                  Affiliates. In  addition , MMTC is the  legal  and  beneficial
                  owner of  all of  the Licensed  Patents, and  no other person,
                  firm, corporation or other  entity, has any right, interest or
                  claim in or to the Licensed Patents.

         ( iv )   Neither the  execution and  delivery of this Agreement nor the
                  performance  hereof  by  MMTC  requires  MMTC  to  obtain  any
                  permits, authorizations or consents from any governmental body
                  or from  any  other  person,  firm  or  corporation,  and such
                  execution,  delivery  and  performance  will not result in the
                  breach of or give rise to any  termination of any agreement or
                  contract  to  which  MMTC  may  be a party  or which otherwise
                  relates to the Licensed Patents or the Licensed Products.

         ( v )    Upon  execution  of  this  Agreement,  MMTC  will  disclose to
                  technical  personnel of CLI all data and material information,
                  known to it or its  Affiliates, with respect to the safety and
                  efficacy of the Licensed Products.

301650.001(BF)                            12





         9.2  CLI hereby represents and warrants to MMTC as follows:

         ( i )    CLI has the  corporate power  and  authority  to  execute  and
                  deliver   this   Agreement  and  to  perform  its  obligations
                  hereunder, and the execution, delivery and performance of this
                  Agreement  by  CLI  have  been  duly  and  validly  authorized
                  and approved by proper corporate action on the part of CLI and
                  . and CLI  has  taken  all other  action required  by law, its
                  certificate of  incorporation  or by-laws or  any agreement to
                  which it is a party or to which it may be  subject required to
                  authorize    such   execution  and  delivery.   Assuming   due
                  authorization,  execution  and  delivery  on the part of MMTC,
                  this  Agreement  constitutes  a  legal,   valid   and  binding
                  obligation of CLI, enforceable against CLI in  accordance with
                  its terms, except as the enforceability thereof may be limited
                  by applicable  bankruptcy, insolvency, reorganization or other
                  similar laws of  general  application  relating  to creditors'
                  rights.

         ( ii )   To the best of CLI's  knowledge, the execution and delivery of
                  this  Agreement  and  the  performance  by  CLI   contemplated
                  hereunder will not violate any state, federal or other statute
                  or regulation or any order  of any court or other governmental
                  department, authority, agency or instrumentality of the United
                  States.

         (ii) CLI shall purchase product  liability that is satisfactory to MMTC
in the amount of not less than $5,000,000 for product liability.

                          SECTION 10 - INDEMNIFICATION

         10.1 CLI agrees to indemnify and hold MMTC,  its  directors,  officers,
agents and employees harmless from all loss, damage,  liability,  claim of loss,
lawsuit,  action, cost, fees (including  reasonable attorneys' fees) , expenses,
and other claims  asserted  against them or any of them for damage,  injury,  or
death  arising  directly or  indirectly  as a result of the clinical  testing or
use,, manufacturing,  processing,  packaging, marketing, sale or distribution of
Licensed  Products,  in each case by CLI, its  Affiliates or  sublicensees.  CLI
shall have no obligation to indemnify MMTC or its directors, officers, agents or
employees  under this Section 10.1 in the event a judge or jury makes a specific
finding or verdict,  which is sustained through final appeal of gross negligence
that is willful or wanton or of intentional and conscious wrongdoing.

301650.001(BF)                         13




MMTC shall give CLI  notice as soon as  practicable  of any such claim or action
and CLI shall have the right to  participate  in any  compromise,  settlement or
defense thereof.

                                SECTION 11 - TERM

         11.1 This Agreement  shall commence as of the effective date hereof and
shall  continue in  perpetuity  unless  terminated  earlier in  accordance  with
Section 12.

         11.2 The term of CLI's  royalty  obligations  under Section 3.3 of this
Agreement  shall be for the life of any  patent  included  within  the  Licensed
Patents and licensed to CLI pursuant to Section 2.1.

         11.3 CLI's obligation to pay royalties pursuant to Sections 3.3 and 3.4
hereof shall cease and CLI shall be deemed to have a fully paid-up  license upon
the earlier of ( i ) the expiration of all patents  within the Licensed  Patents
or ( ii ) respecting  the Patent  Country or Patent  Countries in question,  the
termination of CLI's obligation to pay royalties pursuant to Section 8.

                            SECTION 12 - TERMINATION

         12.1 If at any time CLI shall,  in its reasonable  judgment,  determine
that it is not  reasonably  practicable  to sell or  continue  to sell  Licensed
Products, CLI, upon sixty (60) days notice to MMTC, shall have the right, as CLI
may elect, to terminate this Agreement, whereupon this Agreement shall terminate
sixty (60) days after the date of such notice.


         12.2 If CLI  fails to pay  MMTC any  required  Additional  License  Fee
required  by Section 3.2 hereof,  royalties  required by Section 3.3 hereof,  or
minimum  annual  royalties  required by Section  3.4 hereof,  and such breach or
default as not cured within  thirty (30) days after the giving of notice by MMTC
specifying  such breach or default,  MMTC shall have the right to terminate this
Agreement  immediately  upon  expiration  of such  thirty (30) day period and to
institute arbitration  proceedings to recover any unpaid royalties accrued on or
before termination.


301650.001(BF)                         14




         12.3 Subject to the  provisions  of Section 12.2, if either CLI or MMTC
breaches or defaults in the  performance  or observance of any of the provisions
of this  Agreement  and such breach of default is not cured  within  ninety (90)
days after the giving of notice by the other  party  specifying  such  breach or
default, the other party shall have the right to terminate this Agreement upon a
further thirty (30) days notice. If any  representation or warranty of any party
as contained in this Agreement shall be materially incorrect or inaccurate, such
shall be deemed to be a material  breach or default  of this  Agreement  by such
party.

         12.4   Termination  of  this  Agreement for any reason shall be without
prejudice to:

         ( i )    the rights  and  obligations  of the  parties  as  provided in
                  Sections 5.1, 5.2 and 10.1 hereof;

         ( ii )   MMTC's right to  receive all  payments accrued  under Sections
                  3.3 and  3.4  hereof  prior  to  the  effective  date  of such
                  termination; and

         ( iii )  any other remedies which either party may otherwise have.

         12.5  Upon  any  termination  by CLI  under  Section  12.1  hereof,  or
termination by MMTC under Section 12.2 or 12.3 hereof, all rights granted to CLI
pursuant to this Agreement shall terminate.


         12.6 CLI  shal   raise  $5,000,000  in funds by March 31, 1997.  If CLI
does not secure the $5,000,000 in funds by said date,  MMTC shall at its option,
terminate  this  agreement  and shall be  allowed  to  retain  any and all funds
received by MMTC from CLI.

                  SECTION 13 - DISPOSITION OF LICENSED PRODUCTS

         13.1 Upon  termination  of this  Agreement  in its  entirety  by either
party, CLI shall provide MMTC with a written  inventory of all Licensed Products
in the process of  manufacture  or in stock and shall  dispose of such  Licensed
Products within a period of one (1) year following such  termination;  provided,
however,  that all such Licensed  Products shall be subject to the terms of this
Agreement.

301650.001(BF)                             15






                           SECTION 14 - FORCE MAJEURE


         14.1 No party  shall be liable for  failure  of or delay in  performing
obligations set forth in this Agreement,  and no party shall be deemed in breach
of its obligations,  if such failure or delay is due to natural disasters or any
causes reasonably beyond the control of such party.



                      SECTION 15 - ASSIGNMENT / SUBLICENSE

         15.1 This  Agreement  is binding upon and shall inure to the benefit of
MMTC and its legal  representatives,  successors and assigns.  Any sublicense by
CLI shall not operate to relieve CLI of any  obligations  or  liabilities  under
this  Agreement,  including,  without  limitation,  the obligation of CLI to pay
license fees and royalties  under Section 3. This Agreement  shall not otherwise
be assignable by MMTC or CLI or sublicensed by CLI except with the prior written
consent of the respective  other party,  which consent shall not be unreasonably
withheld; provided, however, that either party shall have the right to:

         ( i )    Assign its rights and  obligations under this Agreement to any
                  successor (including the surviving entity in any consolidation
                  or merger)  to all  or  substantially  all  of  its  business,
                  provided,  that  such  successor  assumes  all of such party's
                  obligations under this Agreement; or

         ( ii )   Transfer its interest or any part thereof under this Agreement
                  to any  Affiliate,  or  designate  and  cause any Affiliate to
                  perform all or part of its obligations under this Agreement or
                  to have the benefit of all or part of its rights hereunder. In
                  the event of any such transfer, the transferee Affiliate shall
                  assume and be bound by the provisions of this  Agreement,  and
                  its performance under this  Agreement  shall  be guaranteed by
                  the transferring party.

301650.001(BF)                               16




                           SECTION 16 - MISCELLANEOUS

         16.1 Governing Law and  Arbitration - This Agreement  shall be governed
by and  construed  under the laws of the State of New  York,  regardless  of the
choice  of law  principles  of New York or any  other  jurisdiction.  Except  as
otherwise provided in Sections 4.3 hereof, any claim or controversy  arising out
of or  relating  to this  Agreement  shall  be  settled  by  final  and  binding
arbitration by three (3) arbitrators, in accordance with the then-existing rules
of the American Arbitration  Association,  and judgement upon the award rendered
by the arbitrators may be entered in any court having jurisdiction  thereof. The
parties shall each select one  arbitrator  and the  arbitrators  selected by the
parties shall mutually agree on a third  arbitrator.  Such arbitration  shall be
held in New York, New York.

         16.2 Entire  Agreement- This agreement sets forth the entire  agreement
and  understanding  among the parties hereto as to the subject matter hereof and
has priority over all documents,  verbal consents or  understandings  made among
MMTC and CLI and their  respective  Affiliates  before  the  conclusion  of this
Agreement with respect to the subject  matter hereof;  none of the terms of this
Agreement  shall be amended or modified  except in writing signed by the parties
hereto.

         16.3  Waivers - A waiver by any party of any term or  condition of this
Agreement in any one instance shall not be deemed or construed to be a waiver of
such  term or  condition  for  any  similar  instance  in the  future  or of any
subsequent breach hereof. All rights,  remedies,  undertakings,  obligations and
agreements  contained in this  Agreement  shall be  cumulative  and none of them
shall be a limitation of any other  remedy,  right,  undertaking,  obligation or
agreement of any party.

         16.4 Public  Statements - Neither party shall make any public statement
or make any press release expressly or implicitly  identifying this Agreement or
the other party  without  first  obtaining the consent of the other party (which
consent shall not be  unreasonably  withheld) , except that consent of the other
party shall not be required as to any public statement or other

301650.001(BF)                       17





communication ( i ) which is reasonably believed to be required by law, or  (ii)
which has already been publicly disclosed and is still accurate.

         16.5  Severability  - If and solely to the extent that any provision of
this Agreement  shall be invalid or  unenforceable,  or shall render this entire
Agreement to be unenforceable or invalid, such offering provision shall be of no
effect and shall not effect the validity of the  remainder of this  Agreement or
any of its provisions; provided, however, the parties shall use their respective
reasonable  efforts to renegotiate  the offending  provisions to best accomplish
the original intentions of the parties.



301650.001(BF)                             18












         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed as of the date first written above by their duly authorized officers.

                                                     MMTC, INC.
                                       By:/s/___________________________
                                      Its:___________________________

                                     Dated:__________________________

                                                     CHEUNG LABORATORIES, INC.


                                       By:/s/___________________________
                                      Its:___________________________

                                     Dated:__________________________

301650.001(BF)                           19












                                   Appendix I
                                Licensed Patents




1.       Patents

                         Patent         Issue
         Country         Number          Date         Title

         U.S.          5, 007, 937   April 16, 1991  Catheters for Treating
                                                     Prostate Disease

2.       Applications

                             Application        Filing
         Country               Number            Date              Title

         European Countries   PCT/0591/02509  April 12, 1991  Catheters for
         Canada                                               Treating  Prostate
         Japan                                                Disease
       

3.       All  other  patents  and  applications  in any  country,  now  owned or
         hereafter  acquired  by MMTC,  based on or related to the  patents  and
         patent applications listed in paragraph 1 of this Appendix I.

4.       All  divisionals,  continuations,  continuations-in-part,  patents   of
         addition, extensions and reissues of any patents or applications within
         the foregoing paragraphs 1 and 2 of this Appendix I.


301650.001(BF)                            20



                           CHEUNG LABORATORIES, INC.
                                  [LETTERHEAD]

                                                  September 17, 1990
Dr. Haim I. Bicher
H.B.C.I., Inc.
12099 W. Washington Blvd.,  Suite 304
Los Angeles, CA  90066

RE:      Cheung Laboratories, Inc. proposal to H.B.C.I.

The following  proposal is to set forth  certain  understanding  between  Cheung
Laboratories, Inc. (hereafter referred to as CLI) located at 9140-Guilford Road,
Columbia, MD 21046 and H.B.C.I., Inc. located 12099 Washington Blvd., Suite 304,
Los  Angeles,  CA 90066.  Specifically,  this  proposal  outlines  the terms and
conditions of the sales of CLI's  Hyperthermia  System 100A, with  consideration
given  to  H.B.C.I.,   Inc.,  for  exclusive  assignments  of  certain  patents,
technology transfer and manufacturing rights.

1. CLI will sell H.B.C.I.,  Inc. one System 100A as specified at the sales price
of $149,950 F.O.B.,  Columbia,  MD. This System 100A comes with on-site training
and installation,  free software update and CLI's limited one full year warranty
on parts and labor.

2.       CLI will credit H.B.C.I., Inc. $79,950 for the following:

     (i) H.B.C.I.,  Inc. will fully and exclusively  license without  royalties,
the patent  rights of its microwave air cooled  applicators  patent  #4332260 to
CLI.  CLI will have the right to defend the  validity and content of said patent
with H.B.C.I.  technical help.  H.B.C.I.  will retain full rights to manufacture
and sell under said patent.

     (ii) H.B.C.I.,  Inc. will fully and exclusively  license without  royalties
its patent rights of its  thermocouple  probes patent  #4369795 to CLI. CLI will
have the right to defend the validity  and content of said patent with  H.B.C.I.
technical help. CLI will consider purchase of H.B.C.I.'s thermocouples. H.B.C.I.
will retain full rights to manufacture and sell under said patent.

301650.001(BF)                           21






     (iii) CLI will explore the possibility of jointly  developing and marketing
the POPAS System.

     (iv) Upon acceptance of this proposal, H.B.C.I., Inc. shall Federal Express
a deposit of U.S. $30,000 to CLI. September 24, 1990.

     (v)  CLI,  on a best  effort,  shall  have the  System  100A  delivered  to
H.B.C.I.,  Inc. and installed the first week of October 1990. Upon  satisfaction
of  installation  and training,  H.B.C.I.,  Inc. shall  immediately  make us the
second payment, U.S. $30,000, plus delivery, crating if needed, and insurance.

     (vi) The balance of $10,000 shall be paid to CLI by H.B.C.I., Inc. no later
than 90 days after  delivery of System  100A.  H.B.C.I.,  Inc. at its option can
submit the payment of the balance or return the Luxtron  3000  Thermometry  unit
inclusive of extensions and probes in the same condition as received.

H.B.C.I.,  Inc. shall finalize license agreements of patent rights to CLI of the
patents  contained  in a. and b. above no later than 60 days after  signing this
agreement.

If the  foregoing  is in  accordance  with your  understanding  of the terms and
conditions agreed upon between the two parties,  please sign and date below, fax
and send  back to CLI.  CLI  shall  verify  and send  back to you a copy of this
agreement,  whereupon this shall become the agreement  between the parties,  and
shall not be modified  except by writing  agreed to and executed by both parties
hereto.

                                               CHEUNG LABORATORIES, INC.




                                                By  /s/
                                                   --------------------------- 
                                                   John Mon, Marketing Manager

Agreed and Accepted this ____ day of ___________, 1990.

H.B.C.I., Inc.



301650.001(BF)                         22





By  /s/
   ----------------------
   Haim I. Bicher, M.D.
   H.B.C.I. President


301650.001(BF)                        23



                           CHEUNG LABORATORIES, INC.
                                  [LETTERHEAD]

October 4, 1996


Mr. Lorin M. Spak
Herbst LaZar Bell, Inc.
355 North Canal Street
Chicago, Illinois 60606

Dear Mr. Spak:

         Please  consider this letter in substitution of an earlier letter faxed
to you on September 27, 1996.

         Following verbal discussions,  as recently as this morning, with Warren
Stearns,  Stuart Fuchs, Verle Blaha, and others,  your proposal,  your letter of
September  5th,  and Walter's  letter of the 9th;  this letter is to express our
intent  (mutually,  if  executed  in the space  provided  below) to enter into a
business  relationship  between  Herbst  LaZar  Bell,  Inc.  ("HLB")  and Cheung
Laboratories,  Inc.  ("CLI")  pursuant to which CLI undertakes to engage HLB for
certain tasks (essentially outlined in your proposal,  but most probably subject
to modest  modification  over time)  under the terms and  conditions  as are set
forth herein.

         While your letter outlines a well thought out and comprehensive program
that we intend to implement,  Verle Blaha has explained to Walter Herbst that we
underestimated  the work  necessary to get our next  financing  underway and are
consequently  delayed.  The investors are there and our paperwork  isn't.  While
this situation is both frustrating and a bit embarrassing, I know that Verle has
told Walter that it also would not be fair to you to enter into the full program
you proposed on a formally binding basis until we can assure you that we have in
hand the funds to pay the cash portion of your charges on a timely basis. We are
nevertheless  very  pleased  that  you  think  enough  of the  potential  of the
technology  array we now  possess  that you are  willing  to work  with us and I
assure you that we want to add HLB to our growing term of top flight experts.




         In this regard we agree with the arrangements set forth in principle in
your proposal and letter of the 5th as to the tasks to be accomplished  and cash
compensation  rates  to be  paid to you  (55%  of  normal  billing  rates).  The
remaining 45% will be paid to HLB in CLI common stock at $1.25 per share.  Prior
to the  delivery  of any of  such  shares,  you  will  be  required  to  execute
documentation  relating to the issuance of these securities,  all of which shall
be  consistent  with  the  documentation  required  of  any  similarly  situated
accredited  investor.  As part of  this  documentation,  you  will be  asked  to
acknowledge receipt,  review and understanding of information to be contained in
Form 10-K covering the year ending September 30, 1996.

         As indicated in our  conversation  earlier  today,  and as a completely
separate subject, we have an urgent need to deliver a "breadbox" alpha prototype
to  Oxford  University  not  later  than  December  31,  1996.  This  prototype,
incorporating  the MIT  technology  in a CLI microwave  hyperthermia  system but
lacking the LORAD table, will be used initially to conduct preclinical trials on
healthy  pigs.  These large  animal  tests must be  completed  in advance of the
clinicals to be performed at Hammersmith.

         The CLI  prototype  will then be  attached  to a LORAD  table,  and the
complete  system  for  treating  cancer in intact  human  breasts  delivered  to
Hammersmith  by April 1,  1997.  CLI will  supply HLB with one  Microfocus  1000
System  and one LORAD  table or  equivalent.  HLB's  task  would be  limited  to
upgrading the software,  designing the "marriage" of the LORAD and CLI subunits,
and  completing  the  construction  of the "animal" and "human"  configurations.
Stuart  Fuchs,  assisted  by Alan  Fenn,  will be our  project  manager.  We are
currently  reviewing a Statement  of Work  prepared by Alan Fenn to make sure it
conforms to this revised plan.

         Upon reviewing your rates and the Statement of Work mentioned above, we
estimate that this separate year-end project would run to approximately  $50,000
and have  budgeted this amount,  including the enclosed  check for an advance of
five thousand dollars  ($5,000),  as discussed  between Verle and Walter. If you
feel we are correct in our  estimate  and are in  agreement  with the spirit and
intent  expressed  in this letter,  please  execute a copy of this letter in the
space  provided and return it for our files.  If you have  additional  comments,
questions or remarks, please call me.
We want to work with you.

Sincerely,                                           Accepted:


/s/_______________________                          /s/_______________________
Augustine Y. Cheung                                 Lorin M. Spak

301650.001(BF)                                     2




                            STEARNS MANAGEMENT COMPANY
                                  [LETTERHEAD]

                                  May 28, 1996

Cheung Laboratories, Inc.
10220-1 Old Columbia Road
Columbia, MD 21046-1705

Attention:  Messrs:        Augustine Cheung, President
                           Charles C. Shelton, Executive Vice President

                           Letter of Agreement

Dear Messrs. Cheung and Shelton:

         We have held meetings held at the offices of Cheung Laboratories,  Inc.
(the "Company") on May 24th and have participated in several phone conversations
between  May  25th  and  today's  date to get  acquainted  with you and with the
Company and to discuss various  alternative  strategies by which the Company can
finance  the  implementation  of its  business  plans.  Pursuant  to our  verbal
agreement for us to undertake a consulting  engagement  for the Company  reached
during our meetings and confirmed by Mr.  Shelton's  letter of today's date, you
have  forwarded  substantial  additional  information  which we have reviewed in
detail.

         Accordingly, this Letter Agreement is to confirm and document the prior
agreements reached whereby the Company, a Maryland corporation,  seeks to secure
the advice and services of Stearns Management Company, an Illinois  corporation,
("Stearns") to render financial  advisory  services to it regarding its near and
long-term  business  strategy  particularly  with  regard  to its need to secure
outside capital to sustain its anticipated growth.  Stearns has agreed to render
such advice and services on the terms and conditions set forth below.

         1.       The Company hereby engages Stearns to render consulting advice
                  to the  Company,  on an  exclusive  basis,  with regard to all
                  matters   involving  the   solicitation  of  outside  capital,
                  restructuring  the  Company  in a  manner  most  conducive  to
                  solicitation and acceptance of such capital, and other matters
                  relative  thereto  including,  but not limited to, the matters
                  outlined in paragraph hereof.



         2.       Stearns will consult with the  Company's  management  at their
                  request to study the Company's  business  plans and to provide
                  specific  recommendations  concerning  financial  and  related
                  matters, including, but not limited to, the following:

                  A        Changes in the capitalization of the Company;
                  B        Changes in the Company's corporate structure;
                  C        Redistribution of shareholdings of the Company's 
                            stock;
                  D        Obtaining working capital financing for the Company
                            initially
                           and on an on-going basis;
                  E        Offerings of securities in private transactions;
                  F        Offerings of securities in public transactions 
                            including selection of financial public relations
                            alternatives, budgeting and implementation of 
                            follow-on strategy;
                  G        Selection of professionals as special consultants in 
                            connection with such offerings;
                  H        Alternative   uses  of  corporate   assets;
                  I        Alternative  marketing  approaches for  expansion; 
                  J        Selection of advisory personnel  and/or  additional  
                            directors; 
                  K        Sale of  stock by insiders pursuant to Rule 144 or
                            otherwise.

         3.       Stearns will recommend  and, upon request of the Company,  use
                  its best  efforts to  implement a plan(s)  which will  provide
                  capital to the Company from outside sources on a timely basis,
                  both  privately  and  publicly,  utilizing  its  knowledge and
                  contacts   within  the   financial  and   investment   banking
                  communities.

         4.       As  part  of  its   duties  hereunder  and   material  to  its
                  recommendations  to  the  Company,  Stearns  will undertake an
                  analysis of:

                           (a)  The  current  valuation  of  similarly  situated
                           public  companies  in an effort to assure the Company
                           of fair valuation upon marketing of its securities.

                           (b) The Company's short term sales and  manufacturing
                           plans  in  order to  determine  the need for  interim
                           capital  and to assist the Company in  selecting  its
                           best strategy for maximizing  the intrinsic  worth of
                           its shares.


301650.001(BF)                                     2








         5.       Upon request of the Company, Stearns will undertake consulting
                  assignments on such other matters as the Company may deem
                  appropriate.

         6.       In order to induce  Stearns  to enter  into this  relationship
                  with the Company and to discount its normal fees for services,
                  the Company shall:

                           (a)  Grant  to  such   assignees  as  Stearns   shall
                           designate to the Company a transferable  Common Stock
                           Purchase  Warrant  (the   "Warrant"),   in  the  form
                           attached   hereto  as  Exhibit  1,   entitling   such
                           assignees  to  purchase,   for  a  five  year  period
                           commencing  on the date hereof and  renewable  for an
                           additional  five year  period,  the  number of shares
                           which,  when added to the existing  common shares and
                           any securities  convertible  into or exercisable  for
                           the  purchase  of  (options,  warrants  and the like)
                           common shares, would represent,  in aggregate, a five
                           percent (5%) interest in the equity of the Company as
                           of the  completion  of  the  next  registered  public
                           offering  of  common  shares  of  the  Company.  Said
                           Warrant,  when  reduced to  certificate  form,  shall
                           allow said  assignees of Stearns,  in  aggregate,  to
                           invest  a  total  sum  of  money  to  be  derived  by
                           multiplying  $0.41 per share by that number of shares
                           which  shall   constitute   said  five  percent  (5%)
                           interest (on a fully  diluted  basis as is more fully
                           covered in the Warrant) and the Warrant shall contain
                           certain  anti-dilution  features (see form of Warrant
                           attached  as  Exhibit  1)  which  shall  protect  all
                           assignees  of  Stearns  from   percentage   or  price
                           dilution until the Company's next public  offering (a
                           defined  term  in  the   Warrant)   shall  have  been
                           completed, whereupon, in subsequent issues of equity,
                           assignees of Stearns  shall accept  dilution of their
                           interest pro-rata with other holders of common shares
                           or securities convertible or exercisable into same.

                           The  warrants   issuable   upon   execution  of  this
                           Agreement shall be fully vested in the hands of their
                           holders and shall not be cancelable regardless of the
                           termination, for any reason or for

301650.001(BF)                                     3












                           any cause, of this Agreement. Within three (3) months
                           from the date hereof,  any and all Warrants issued in
                           accordance  with this  Agreement,  shall be converted
                           into  Warrants  bearing  the actual  number of shares
                           into  which   each  such   Warrant   certificate   is
                           exercisable  instead  of  the  percentage  of  shares
                           currently   defined  in  the  Warrant  to  be  issued
                           concurrently with the execution of this Agreement.

                           (b) Make the representation and warranties  contained
                           in  paragraphs  and  hereof.  When  made  to  Stearns
                           herein,  all  such  representations,  warranties  and
                           indemnifications   shall  apply  equally  to  Stearns
                           officers,  directors,  affiliates,  heirs, successors
                           and assigns.

         7.       In consideration  for the services  rendered to the Company by
                  Stearns,   Stearns  shall  charge  the  Company  for  services
                  rendered,  commencing with the date of this Agreement,  by its
                  personnel at the  following  per diem rates which  represent a
                  substantial reduction from its normal charges:

                  An initial fee of $34,000 as additional  inducement,  together
                  with the issuance of a warrant to purchase  168,292  shares of
                  CLI  Common  Stocks on the same  terms and  conditions  as may
                  hereafter be issued to investors  in the  contemplated  Bridge
                  Financing  undertaken  shortly,  and  covering   investigatory
                  efforts by Stearns to the date hereof.

                  The following fees and expense rates shall apply hereafter:

                                                              Per Diem

                           Warren C. Stearns                  $1500*
                           Others                             Cost plus 20%
                           Expenses                           Cost plus 20%

         *        Or $190.00/hr for partial days (primarily  Chicago area).  Per
                  diem rates shall apply regardless of the length of the working
                  day  (providing the working day shall have been at least eight
                  (8) hours) and no charges

301650.001(BF)                                     4












                  shall be made for travel  time  unless  same is during  normal
                  working hours during the normal Monday-Friday work week.

                  Payment of fees and  expenses  may be  delayed by the  Company
                  pending  first  receipt of proceeds  from  outside  financing;
                  thereafter,  fees and  expenses  shall be  billed  monthly  in
                  arrears and payable net, 10 days.

                  Statements  from  Stearns  shall be  submitted  monthly to the
                  Company  accompanied by receipts or other documentation as the
                  Company shall reasonably request.

         8.       Stearns shall have the right to rely on verbal instructions or
                  approvals of the Chief Executive, other designated officer, or
                  General  Counsel to the Company with respect to  initiating or
                  continuing to incur fees or expenses.

                  Similarly,  the  parties  hereto  have agreed that most of the
                  communication  between the Company and Stearns shall be verbal
                  so as to  minimize  the amount of time  actually  billable  by
                  Stearns to the Company.  However,  Stearns stands ready at any
                  time to communicate its reports, recommendations,  or comments
                  on any matter in writing if requested to do so by the Company.

         9.       The  Company  acknowledges  that all of the  compensation  due
                  Stearns as a result of its  performance  hereunder  and all of
                  the  inducements  granted  by the  Company to Stearns to enter
                  into the  relationship  created hereby are accepted by Stearns
                  based   on   its   continued   reliance   on   the   Company's
                  representations  and  warranties  contained in this  paragraph
                  and, upon  execution of this  Agreement,  delivered  hereby to
                  Stearns.

                  The  Company  represents  that it has agreed in  principle  to
                  engage in one or more private  securities  offerings  (more or
                  less,  immediately)  and to seek a next public offering of its
                  common  stock at an early date  (expected to be not later than
                  the end of 1997) to raise needed  capital and, also, to aid in
                  liquefying  existing  investment.  The Company also represents
                  and warrants to Stearns that:


301650.001(BF)                                     5












                           Except  as  already  disclosed  to  Stearns,  it is a
                           corporation  in  good  standing,  has  correctly  and
                           timely filed all reports and notices and has done all
                           such other  things as it is  required to do and to be
                           so filed by all the various  state and federal  laws,
                           rules,  regulations and statutes to which the Company
                           is subject,  is not in  litigation  or  subjected  to
                           threatened  litigation,  has good title to all of its
                           assets  including  but  not  limited  to its  patents
                           (whether  owned or  licensed),  and is in  compliance
                           with each and every  contract or  agreement  which is
                           binding upon it.

                           It   will   engage   competent   securities   counsel
                           reasonably  acceptable to Stearns to prepare offering
                           material  for  each  offering  contemplated  by  this
                           agreement.

                           It will begin to  substantially  revise its  Business
                           Plan, in an expeditious  manner,  along the lines and
                           in accordance  with the  suggestions  made by Stearns
                           concurrent with the execution of this  Agreement.  As
                           well, it will furnish Stearns with adequate copies of
                           same as well as such further documentation as Stearns
                           may, from time to time, reasonably request.

                           It will prepare or cause to be prepare or cause to be
                           prepared a  written,  taped,  and  verbal  "technical
                           presentation" and will use its best efforts to attend
                           meetings with  security  analysts to expose a variety
                           of   financial    institutions   of   its   technical
                           achievements.

                           It  will  engage  the  services  of  an   experienced
                           businessman  to  act  as  interim  CEO  who  will  be
                           competent  to  attend  to  the  coordination  of  all
                           contemplated activities particularly attendant to the
                           preparation of the Company to financial  institutions
                           and investment bankers.

                           It  will  engage  an   accounting   firm   reasonably
                           acceptable  to Stearns to prepare  audited  financial
                           statements reflecting the Company's financial history
                           for the last three (3) fiscal years.  Said statements
                           shall be prepared in accordance with generally

301650.001(BF)                                     6












                           accepted accounting  principles but shall capitalize,
                           to the extent possible,  the Company's  investment in
                           its patents, prototypes, research and development.

                           That there are no existing  agreements with any party
                           which would act to  mitigate or prohibit  the Company
                           from performance of all actions  contemplated by this
                           Agreement  and  that it has full  authority  to enter
                           into this Agreement.  Additionally,  that the Company
                           is unaware  of any  potential  claim or  payment  for
                           services in the nature of a finder's fee or any other
                           arrangements,   agreements,  payments,  issuances  or
                           understandings  that would operate to affect Stearns'
                           compensation  (including the issuance of the Warrant)
                           hereunder.

                           It  does,  hereby,   indemnify  Stearns  against  any
                           liability   whatsoever   (including  legal  fees  and
                           expenses)  arising  from claims made by others  based
                           upon  misstatements  or  omissions  of material  fact
                           whether in offering  material prepared by the Company
                           or in  statements  made  or  alleged  to be  made  by
                           employees,  agents,  or  consultants  to the  Company
                           (other than  Stearns).  In this  connection,  Stearns
                           shall rely upon the Company's assurance, made herein,
                           that, upon notice,  the Company shall promptly engage
                           competent  counsel to defend Stearns or failing to do
                           so for a period of thirty (30) days after  receipt of
                           notice,  shall,  immediately upon receipt,  reimburse
                           Stearns for any fees or expenses Stearns, in its sole
                           discretion, deems necessary for its defense.

                           It shall  cooperate fully with Stearns in its efforts
                           to secure  outside  capital for the Company and shall
                           not  unreasonably   delay  approval  or  delivery  of
                           information  or  documentation   (including  executed
                           documentation)   necessary   to  conclude   financing
                           originated by Stearns and approved by the Company.

                           It  recognizes  and  confirms  that,  in advising the
                           Company and in fulfilling its  engagement  hereunder,
                           Stearns will use and rely on data, material and other
                           information furnished to Stearns by the

301650.001(BF)                                     7












                           Company.  The Company acknowledges and agrees that in
                           performing its services under this Agreement, Stearns
                           may  rely   upon  the   data,   material   and  other
                           information  supplied by the Company  without in each
                           and  every  case  being  obligated  to  independently
                           verify the  accuracy,  completeness  or  veracity  of
                           same.

                           In the  event  of any  dispute  between  the  parties
                           hereto,  at the sole option of  Stearns,  the Company
                           will submit same to  arbitration  in accordance  with
                           the rules of the American Arbitration Association and
                           that the prevailing  party in any such arbitration or
                           litigation,  as the  case  may be,  shall be paid its
                           reasonably  attorneys' fees and expenses arising from
                           such proceeding by the other party.

         10.      The term of this  Agreement  is for a period  of one  (1) year
                  from the date hereof or for a period  ending on  the  date  on
                  which a Registration  Statement  covering a public offering of
                  the  Company's  securities  is  declared  effective  by    the
                  Securities  and  Exchange  Commission,  whichever  date  lasts
                  occurs.   Notwithstanding  anything to  the contrary  in  this
                  paragraph,  this  Agreement  may be terminated by either party
                  to this Agreement at any time in its discretion, upon ten (10)
                  days written notice to the other party.

                  In the event that this  Agreement is terminated by the Company
                  for any reason prior to the  termination  date provided in the
                  first  sentence  of this  paragraph  , the  rights  under  the
                  Warrant or Warrants, of even date herewith, by and between the
                  Company and  assignees of sterns shall  continue in full force
                  and effect according to its terms. Additionally,  in the event
                  the Company terminates this Agreement prior to the termination
                  date set forth in the first  sentence of this  paragraph , the
                  Company  shall,   immediately   upon  submission  of  a  final
                  statement by Stearns, pay all the fees and expenses accrued to
                  Stearns through the date of termination.

                  In the event that this Agreement is terminated by Stearns,  it
                  shall be terminated  only by Stearns'  declaration of a breach
                  on the Company's

301650.001(BF)                                     8












                  party  of  this  Agreement   (particularly   pursuant  to  the
                  provisions  of  paragraph  hereof) or because  the Company has
                  elected to materially  delay or change its financing  strategy
                  in such a fashion that the  financing(s)  contemplated  herein
                  are no  longer  feasible  within  the  term  frame  originally
                  contemplated.  In such event, the Company and Stearns agree to
                  work out some mutually  agreeable means by which the Company's
                  obligations  to Stearns may be paid  without  undue  burden on
                  either party.

         11.      Stearns  will  execute  and agrees  hereby to abide by (to the
                  extent its provisions are not in conflict with the performance
                  of duties expected of Stearns to this Agreement) an "Agreement
                  For The  Protection  Of  Confidential  Information")  with the
                  Company.

         If the foregoing  correctly documents the understandings and agreements
reached  between us, please execute this letter  agreement in the space provided
below and return a copy of it for our files.

Very truly yours,                           Read, Understood and Agree:


Stearns Management Company          Cheung Laboratories, Inc.



By:  /s/ ____________________       By:  /s/_______________________
     Warren C. Stearns                   Augustine Y. Cheung
     President                           President



301650.001(BF)                                     9



                              CONSULTING AGREEMENT

         This  CONSULTING  AGREEMENT,  dated  as of  August  1,  1996,  with  an
effective  date of June 1,  1996  (the  "Effective  Date"),  is  between  Cheung
Laboratories,  Inc., a Maryland corporation (the "Company"), and NACE Resources,
Inc., a Delaware corporation (the "Consulting Firm").
                                   WITNESSETH
         WHEREAS,  since the Effective  Date, the  Consulting  Firm has provided
consulting  services  to  the  Company  with  respect  to  the  development  and
application of the Company's  products and  proprietary  technology  (the "Prior
Consulting Services");
         WHEREAS,  the Company desires to compensate the Consulting Firm for the
Prior  Consulting  Services  and  to  engage  the  Consulting  Firm  to  provide
consulting  services  in the  future  in  accordance  with  the  terms  of  this
Agreement.
         NOW,  THEREFORE,  in  consideration  of the  premises and of the mutual
agreements contained herein, the Company and the Consulting Firm hereby agree as
follows:
         1.       Term.
                  The  Company  hereby  engages  the  Consulting  Firm,  and the
Consulting Firm hereby agrees to perform services for the Company, in accordance
with this  Agreement,  for an  initial  term of one (1) year  commencing  on the
Effective Date (the "Initial  Term"),  unless  terminated  earlier in accordance
with  Section  5  hereof.  The term of this  Agreement  shall  be  automatically
extended for an unlimited  number of one year  renewal  terms (each,  a "Renewal
Term"), unless terminated in accordance with Section 5 hereof or by either party
upon written  notice given thirty (30) days prior to the end of the Initial Term
or any Renewal Term.
         2.       Duties of the Consulting Firm.
                  (a) The  Consulting  Firm hereby  agrees to cause Stuart Fuchs
(the "Designated  Consultant") to provide such advisory and consulting  services
to the Company and its  Affiliates as may be requested  from time to time by the
Board  of  Directors  or  the  President  of the  Company  with  respect  to the
development   and   application  of  the  Company's   products  and  proprietary
technology.  In addition, to the extent requested from time to time by the Board
of Directors or President of the Company,  the Consulting  Firm will  coordinate
the activities of an advisory committee of scientific and medical  professionals
to assist in the development of and  application of the Company's  products  and

301650.001(BF)                                     1




proprietary  technology.  The  Consulting  Firm shall not change,  substitute or
replace the Designated  Consultant  without the express  written  consent of the
Company.  As used in this Agreement,  the term "Affiliate" means any corporation
or other business  organization that directly, or indirectly through one or more
intermediaries, controls or is controlled by or is under common control with the
Company.
                  (b) The Consulting Firm shall cause the Designated  Consultant
to devote such time as shall be necessary to the  performance  of the Consulting
Firm's duties and responsibilities hereunder, but in no event less than 32 hours
in each of 48 weeks  per year  during  the  term of this  Agreement.  Commencing
January 1, 1997,  Designated  Consultant  shall provide to the Company a monthly
report  detailing  the time spent  working on behalf of the  Company  during the
previous month.
                  (c) Nothing  contained  herein shall constitute the Designated
Consultant an employee or agent of the Company or any of its  Affiliates but the
relationship  of  the  Consulting  Firm  to  the  Company  shall  be  one  of an
independent  contractor.  Any other  provision of this Agreement to the contrary
notwithstanding, neither the Consulting Firm nor the Designated Consultant shall
not have the  authority  to enter into any  agreement on behalf of, or otherwise
bind, the Company or any of its Affiliates, without the prior written consent of
the Company.
         3.       Compensation.
                  (a) For the Prior Consulting  Services,  the Company shall pay
to the  Consulting  Firm an aggregate of $75,000,  all of which has been paid by
the Company to the Consulting Firm on or prior to the date of this Agreement.
                  (b) For its services under Section , the Company shall pay the
Consulting  Firm  compensation  in an amount  equal to  $20,000  per month  (the
"Current  Compensation"),  commencing  August 1, 1996, of which $5,000 per month
(the "Deferred  Compensation")  shall be deferred until the completion after the
date  of this  Agreement  of any  debt or  equity  financings  providing  in the
aggregate  gross proceeds to the Company of at least  $5,000,000,  whereupon the
aggregate Deferred  Compensation shall be immediately  payable to the Consulting
Firm in full. The Current  Compensation shall be payable in arrears on the first
business day of each calendar month during the term of this Agreement.
                  (c) The Company  shall pay the  Consulting  Firm eight percent
(8%) of any  direct or  indirect  cash  contributions  or cash  payments  to the
company,  resulting  from  the  Consulting  Firm  or the  Designated  Consultant
introducing  the Company and the  contributor,  and that are  deductible  by the
contributor  or payor under  501(c)(3) of the Internal  Revenue Code of 1986, as
amended (the "Contingent Compensation"), payable

301650.001(BF)                                     2












promptly  upon the  direct  or  indirect  receipt  by the  Company  of such cash
contributions or cash payments.

         4.       Reimbursement of Expenses.
                  The Company shall pay the  Consulting  Firm for its reasonable
out-of-pocket  expenses  incurred in the  performance of the  Consulting  Firm's
duties hereunder, upon submission of an adequate accounting for such expenses in
accordance with the Company's policies form time to time in effect.
         5.       Termination.
                  This Agreement shall terminate upon the first to occur of  the
following:
                  (a)      Commencing June 1, 1997, either party  may  terminate
this Agreement,  without cause  or penalty, by delivering to other party written
notice of the termination thirty (30) days prior to the termination.
                  (b) The  Designated  Consultant's  death or, at the  Company's
election,  the  Designated  Consultant's   disability.   For  purposes  of  this
Agreement, the Designated Consultant shall be deemed to be "disabled" if (1) for
medical  (including  psychological)  reasons he has been  unable to perform  his
duties  hereunder for 30 consecutive  days or 60 days in any 12 month period and
(2) it shall have been  certified to the Company,  by a medical  doctor or other
expert   approved  by  the  Company  in  writing,   that  the  disability   will
substantially impair the Designated Consultant's abilities to perform his duties
as  contemplated  hereby for the  remainder of the term of this  Agreement.  The
Company,  in its sole  discretion,  shall be entitled to require the  Designated
Consultant  to  submit  to an  examination  by a  medical  doctor  or  expert to
determine disability.  Failure of the Designated Consultant to submit to such an
examination shall constitute a default hereunder.
                  (c)  Termination of this Agreement "for cause" by the Board of
Directors of the  Company.  Termination  "for cause" shall be limited  solely to
termination  by action of the Board of Directors of the Company  because of: (i)
the negligence,  willful misconduct or malfeasance of the Consulting Firm in the
performance  of  its  obligations  under  this  Agreement;  (ii)  breach  of the
Agreement;  (iii) the  perpetration  by the  Consulting  Firm or the  Designated
Consultant  of a fraud  against the Company or any of its  Affiliates;  (iv) the
filing of a bankruptcy  petition or  assignment  for the benefit of creditors by
the Consulting Firm or the Designated Consultant;  or (iv) the conviction of the
Consulting  Firm or the Designated  Consultant for any felony.  Termination  for
cause  shall  occur upon  delivery  to the  consulting  firm of a notice of such
action by the Board of Directors of the company,  which notice shall specify the
grounds for such termination.


301650.001(BF)                                     3












                  (d) Upon any  termination  under Section  5(a),  the Company's
obligation to make payments  under Section 3 shall  terminate 30 days after such
notice is given and the Company  thereupon shall have no further  obligations to
Consulting Firm whatsoever, other than reimbursement of expenses under Section 4
for expenses  incurred prior to such  termination and payment of any accrued and
payable Current Compensation, Deferred Compensation and Contingent Compensation.
Upon any  termination  under  Section  5(b),  the  Company's  obligation to make
payments  under  Section 3 shall  terminate  upon the death or disability of the
Designated   Consultant  and  the  Company   thereupon  shall  have  no  further
obligations to Consulting Firm whatsoever,  other than reimbursement of expenses
under Section 4 for expenses  incurred prior to such  termination and payment of
any  accrued  and  payable  Current  Compensation,   Deferred  Compensation  and
Contingent Compensation.  Upon any termination under Section 5(c), the Company's
obligation to make payments  under Section 3 shall  terminate  immediately  upon
giving notice to Consulting Firm and the Company thereupon shall have no further
obligations to Consulting Firm whatsoever,  other than reimbursement of expenses
under Section 4 for expenses  incurred prior to such  termination and payment of
any  accrued  and  payable  Current  Compensation,   Deferred  Compensation  and
Contingent Compensation.
         6.       Withholding of Taxes.
                  Payment of all taxes on compensation paid under this Agreement
shall be the sole liability and responsibility of the Consulting Firm, provided,
however, if any tax or other laws or regulations require the Company to withhold
any amounts from  compensation paid under this Agreement to the Consulting firm,
or its assignee, such amounts may be so withheld.
         7.       Records and Reports.
                  The  Consulting  Firm  hereby  agrees to render to the Company
such reports of the activities undertaken by it or conducted under its direction
during the term of this Agreement as the Company may reasonably request.
         8.       Covenant Not to Compete.
                  (a) The  Consulting  Firm covenants and agrees that during the
term  of  this  Agreement  it will  not,  directly  or  indirectly,  whether  as
principal, agent, officer, director, partner, employee,  independent contractor,
consultant, stockholder, licensor or otherwise, alone or in association with any
other person, firm, corporation or other business organization,  carry on, or be
engaged,  concerned  or take part in, or render  services  or advice to, or own,
share in the earnings of or invest in the stock,  bonds or other  securities  of
any person,  firm,  corporation  or other business  organization  engaged in the
United States of America in the business of designing,  assembling and marketing
hyperthermia treatment systems for cancer, other tumors, and prostate disorders,
except

301650.001(BF)                                     4












for any joint venture partner of the Company;  provided,  however,  that each of
the Consulting Firm and the Designated Consultant may invest in stocks, bonds or
other securities of any business  organization  which is in competition with the
Company or any of its Affiliate  (but without  otherwise  participating  in such
business) if (i) such  investment  would not in any way limit the transaction of
business  by the  Company  or  any  of its  Affiliates  by  virtue  of any  law,
regulation,  or  administrative  practice  and (ii) such  stock,  bonds or other
securities are listed on a national or regional securities exchange or have been
registered  under Section 12(g) of the Securities  Exchange Act of 1934 and such
investment in any class of such securities does not exceed 1% of the outstanding
shares of such  class or 1% of the  aggregate  principal  amount  of such  class
outstanding, as the case may be.
                  (b) The  Consulting  Firm  hereby  agrees  that the  covenants
contained in Section are  reasonable  and valid.  If for any reason any court of
competent  jurisdiction shall have deemed the provisions of Section unreasonable
in duration or in geographic scope or otherwise unenforceable,  the prohibitions
herein  contained shall be restricted to such time and geographic areas or shall
otherwise be reformed in such manner as the curt determines to be reasonable.
         9.       Confidential Information.
                  The  Consulting  Firm and the Designated  Consultant  agree to
execute and be bound by a  confidentiality  agreement  substantially  similar to
that executed by employees of the Company.
         10.      Ownership of Trade Secrets.
                  If, during the term of this Agreement,  the Consulting Firm or
any of its employees conceives, devises or develops any trade secret, invention,
improvement, formula, design, process, patent, patent application or writing, or
any program,  system,  or novel  technique  based upon technology or information
derived  from  the  Company  (whether  or  not  capable  of  being  trademarked,
copyrights   or  patented)   ("Proprietary   Information"),   such   Proprietary
Information shall be and remain the property of the Company. Provided,  however,
Proprietary  Information  shall not include U.S. Patent  Application  Serial No.
08/703648 and any other proprietary  information developed by Consulting Firm or
Designated  Consultant with Vladislav  Oleynik and/or Vladimir Popov, so long as
on or before December 31, 1997, the parties achieve a satisfactory resolution of
the Company's $40,000 investment in the patent and related technology.
         11.      Compliance with other Agreements.
                  The  Consulting  Firm hereby  represents  and  warrants to the
Company that the execution and delivery of this Agreement by the Consulting Firm
and the performance of its  obligations  hereunder will not, with or without the
giving of notice

301650.001(BF)                                     5












or the passage of time, (a) violate any judgment,  writ,  injunction or order of
any court,  arbitrator or governmental  agency applicable to the Consulting Firm
or  (b)  conflict  with,  result  in the  breach  of any  provision  of,  or the
termination  of, or  constitute  a default  under,  any  agreement  to which the
Consulting Firm is a party or by which the Consulting Firm is or may be bound.
         12.      Remedies.
                  In the event that any action  shall be brought by the  Company
or the  Consulting  Firm to  restrain  any  breach or  threatened  breach of any
provision of this  Agreement,  the Company and the Consulting  Firm hereby agree
that the prevailing  party shall be reimbursed by the  non-prevailing  party for
all costs and expenses,  including  reasonable  lawyers'  fees,  incurred by the
prevailing party by reason of such breach or threatened breach.
         13.      Binding Effect; Assignment.
                  This  Agreement  shall  inure to the  benefit of, and shall be
binding  upon,  the  Company  and  the  Consulting  Firm  and  their  respective
successors,  assigns,  heirs  and  legal  representatives,  including  any firm,
corporation  or other  business  organization  with  which  the  Company  or the
Consulting   Firm  may  merge  or  consolidate  or  to  which  it  may  transfer
substantially all of its assets.
         14.      Severability.
                  The  provisions  of this  Agreement  are  severable and if any
provision of this Agreement shall be invalid or  unenforceable  to any extent or
in any  application,  then the remainder of such  provision and this  Agreement,
except to such extent or in such application, shall not be affected thereby, and
each and every provision of this Agreement shall be valid and enforceable to the
fullest extent and in the broadest application permitted by law.
         15.      Amendments and Waivers.
                  This  Agreement  may not be modified  or amended  except by an
instrument  or   instruments  in  writing  signed  by  the  party  against  whom
enforcement of any such modification or amendment is sought.  Either the Company
or the Consulting Firm may, by an instrument in writing, waive compliance by the
other party with any term or  provision  of this  Agreement  on the part of such
other party  hereto to be performed  or complied  with.  The waiver by any party
hereto  of a breach  of any term or  provision  of this  Agreement  shall not be
construed as a waiver of any subsequent breach.
         16.      Notice.
                  Any notice, demand,  approval or other communication which may
be or is required to be given under this Agreement shall be in writing and shall
be deemed to have been given on the earlier of the day  actually  received or on
the close of business

301650.001(BF)                                     6












on the fifth  business day next  following the day when  deposited in the United
States mail, postage prepaid, registered or certified,  addressed to the Company
or the Consulting Firm at their respective address set forth below or such other
address as such party may specify by notice given pursuant to this Section :
                  If to the Consulting Firm:
                  NACE Resources, Inc.
                  2323 Sheridan Road
                  Highland Park, IL  60035
                  Attn: Stuart Fuchs

                  with a copy (which shall not constitute notice)
                  to:

                  Altheimer & Gray
                  10 South Wacker Drive
                  Chicago, IL  60606
                  Attn: Norman M. Gold

                  If to the Company:

                  Cheung Laboratories, Inc.
                  10220-1 Old Columbia Road
                  Columbia, MD  21046-1705
                  Attn: Dr. Augustine Cheung

                  with a copy (which shall not constitute notice)
                  to:

                  Ballard Spahr Andrews & Ingersoll
                  201 S. Main Suite 1200
                  Salt Lake City, UT  84111
                  Attn: Richard Beard

         17.      Section and Other Headings.
                  The section and other headings contained in this Agreement are
for  reference  purposes  only  and  shall  not be  deemed  to be a part of this
Agreement or to affect the meaning or interpretation of this Agreement.

301650.001(BF)                                     7













         18.      Entire Agreement.
                  This  Agreement  contains  the entire  agreement  between  the
Company and the  Consulting  Firm  pertaining  to the subject  matter hereof and
supersede all prior agreements and understandings,  oral or written, between the
Company and the Consulting Firm with respect to the subject matter hereof.
         19.      Governing Law.
                  This  Agreement  shall be construed and governed in accordance
with the law of the State of Illinois,  without giving effect to the conflict of
laws principles thereof.

         20.      Counterparts.
                  This Agreement may be executed in counterparts.

         IN WITNESS  WHEREOF,  the Company and the Consulting Firm have executed
this Agreement as of the date first above written.
                                        CHEUNG LABORATORIES, INC.

                                        By:____________________________
                                            Name:______________________
                                            Title:_____________________


DESIGNATED CONSULTANT                       NACE RESOURCES, INC.



By:____________________                     By:____________________
   Stuart Fuchs                                Stuart Fuchs, President



301650.001(BF)                                     8




                             SETTLEMENT AGREEMENT

         This Settlement  Agreement,  containing  payment terms, is entered into
this 28th day of October,  1996 by and between  William O. Cave,  an  individual
residing  in New  York  ("WOC"),  and  Cheung  Laboratories,  Inc.,  a  Maryland
corporation ("CLI").

         WHEREAS,  after much  discussion,  the parties hereto agree that WOC is
owed the total sum of $224,825 by CLI; and

         WHEREAS,  CLI is unable to promptly  pay this sum as of the date hereof
but wishes to establish  the total amount owed and is willing to make every good
faith effort to retire the balance in the shortest possible time; and

         WHEREAS,  the parties  hereto have also reached an  agreement  that CLI
will  issue  56,340  Common  Stock  Purchase  warrants  entitling  the holder to
purchase common shares of CLI for a price of $.50 per share, for a period of two
years from the date hereof; and

         WHEREAS, the parties desire to bring the relationship between them to a
mutually   satisfactory   settlement   regarding  all  previous  agreements  and
relationships  and fully and  finally  settle all claims  which the  parties now
have,  will  have,  or could  have,  arising  from or  related in any way to any
previous dealing between the parties;

         NOW,  THEREFORE,  in  consideration of the premises and mutual promises
herein contained, it is agreed as follows:

         1. Concurrent with the execution of this Agreement,  CLI will deliver a
check to WOC in the amount of $30,000 as an initial  payment,  thereby  reducing
the total amount owed by CLI to WOC to the sum of $194,825.

         2. CLI shall  also issue to WOC a  certificate,  of even date with this
Agreement,  evidencing  WOC's  ownership of 56,340  warrants to purchase  common
shares of CLI upon the terms and for the  period  first  mentioned  above.  This
certificate shall be prepared by counsel to CLI and will be issued to WOC within
thirty days of the date hereof.










         3. CLI shall use its best  efforts to pay the  remaining  balance at an
early date.  It is  anticipated  by both  parties that this will occur not later
than the end of February,  1997.  Unpaid  balances shall accrue  interest at the
annual rate of 15%.

         4. In order to induce CLI to pay the  initial  payment and to issue the
warrants,  WOC, individually and on behalf of his heirs, successors and assigns,
represents and warrants to CLI that the sums mentioned herein are accurate as of
the date hereof,  and grants to CLI his unconditional and total release from all
claims of whatever  description that he, his heirs,  successors or assigns might
otherwise assert against CLI for additional amounts.

         5. As further  consideration,  WOC,  individually  and on behalf of his
heirs,  successors  and  assigns,  hereby  releases  all  officers,   directors,
employees,  agents or  representatives  of CLI, past, present or future from any
and all  claims  which  might  arise  from  any  past  relationship,  agreement,
representation  or warranty that any of them might have had with WOC or might be
alleged to have had with WOC.

         6. This Settlement  Agreement sets forth the entire  agreement  between
the  parties  hereto,  and fully  supersedes  any and all prior  agreements  and
understandings between the parties.

         IN WITNESS  WHEREOF,  and  including to be legally  bound  hereby,  the
parties have executed this Agreement.

CHEUNG LABORATORIES, INC.           WILLIAM O. CAVE



____________________________        ____________________________


301650.001(BF)                                     2


                                 LETTER OF INTENT


     This  Letter of Intent  is made  this  27th day of May,  1996 in  Columbia,
Maryland between Mr. Sun Shou Yi ("Mr.  Sun"),  representative of Mr. Gao Yu Wen
("Mr.  Gao") and Cheung  Laboratories,  Inc., a public company  incorporated  in
Maryland ("CLI").

                                    RECITALS

     WHEREAS, in February 1995, Mr. Gao subscribed to purchase 20,000,000 shares
of the common stock of CLI,  4,000,000  shares for $2,000,000 US cash (the "Cash
Shares")  and  16,000,000  shares for a 9.6%  interest in Aester  Fine  Chemical
Company  (the "Aster  Shares")  and has  purchased  both the Cash Shares and the
Aester Shares;

     WHEREAS,  the  purpose of the  transaction  with Mr. Gao was to utilize the
facilities  to Aester to create a cosmetic  business in China with joint venture
partners that would be beneficial to CLI and Mr. Gao;

     WHEREAS on May 10, 1995, CLI deposited  $700,000 US cash with Mr. Gao in an
investment  account for Mr. Gao to manage and return an annual  interest rate of
17% and $190,000 US of the account has been  returned to CLI,  leaving a balance
owing of $510,000 plus interest;

     WHEREAS,  despite  significant  efforts  by Mr. Gao and CLI,  the  cosmetic
business  objectives  are unlikely to be achieved due to the impaired  health of
Mr. Gao;

     WHEREAS,  Mr. Gao has incurred expenses in operating an Hong Kong office to
pursue the cosmetic  business  objectives and other business for CLI and has not
been reimbursed for such expenses;

     WHEREAS,  Mr. Sun has taken over,  as a principal,  the Aester  Shares from
Mr.Gao, and represents Mr. Gao with regard to the Cash Shares and the investment
account; and




     WHEREAS,  Mr. Gao is not in a position to pursue the cosmetic business plan
due to his  impaired  health and CLI is not in a position to pursue the cosmetic
business  plan,  as it will  utilize its  resources  to pursue its  hyperthermia
business:

     NOW,  THEREFORE,  in consideration of furthering their respective  business
interests, Mr. Sun, as the representative of Mr. Gao, and CLI do hereby agree as
follows,  with the  intention  that this Letter of Intent will be binding and be
implemented under the terms of a definitive contract to be prepared in Hong Kong
and  executed  by the  parties on or before  June 8, 1996,  which shall serve to
provide the details for closing the transaction, but shall not vary the terms of
this Letter of Intent.

         1. The above  recitals  are hereby  incorporated  in and made a part of
this Agreement.

         2. CLI agrees to purchase all of the Cash Shares and pay Mr. Gao or his
designated  recipient  on  or  before  November  30,  1996,  a  sum  total of US
$2,200,000 (four million shares at $0.55/share).

         3. Upon signing of the  definitive  contract on or before June 8, 1996,
the  transactions  pertinent to the Aester Shares and Cash Shares are considered
rescinded. Mr. Gao (or his representative) will deposit both the CLI Cash Shares
and the Aester Shares in an escrow  account held by a mutually  agreeable  third
party.  The Aester Shares and Cash Shares are held in escrow as  collateral  for
full payment of the $2,200,000 mentioned in paragraph above. The Cash Shares and
the Aester Shares shall be returned  immediately to CLI once the full payment of
$2,200,000 has been made.

         4. The closing of the transaction  contemplated by paragraphs and shall
occur on or before  November 30 in Hong Kong under the  procedures  agreed to in
the  definitive  contract.  At closing,  Mr. Gao (or his  representative)  shall
deliver  the Cash  Shares and the Aester  Shares  free and clear of any liens or
encumbrances and CLI will deliver a cash sum total of US $2,200,000.

         5. Mr. Gao will provide an expense  accounting  promptly to CLI for the
expenses  incurred in work on the cosmetic  business and other businesses of CLI
and,  following  review of the  accounting by CLI,  will be reimbursed  from the
investment  account for the  expenses  approved by CLI.  CLI is to exercise  its
reasonable  business  judgment.  This expenses  accounting shall be completed by
both parties by June 15, 1996 and the investment  account balance fully resolved
by such date.

         6. This the full agreement of the parties concerning the subject matter
and is to be implemented by the definitive contract described above. This Letter
of Intent shall be  interpreted  and enforced under the internal law of Maryland

319383.001(B&F)                                    2








the English version of this Letter of Intent shall control its terms.  The terms
and conditions defined in the definitive contract to be signed on or before June
8, 1996 shall govern.

         IN  WITNESS  WHEREOF,  intending  to be bound,  the  parties  do hereby
execute this Letter of Intent.

                                         CHEUNG LABORATORIES, INC.



                                         By:/s/__________________________

                                            MR. GAO'S REPRESENTATIVE



                                         By:/s/__________________________





319383.001(B&F)                                    3









                              REDEMPTION AGREEMENT


         THIS REDEMPTION AGREEMENT (the "Agreement") is  made  this 6th  day  of
June, 1996 in Hong Kong between Mr. Sun Shou Yi ("Mr.  Sun"),  representative of
Mr.  Gao Yu Wen ("Mr.  Gao") and Cheung  Laboratories,  Inc.,  a public  company
incorporated in Maryland, USA ("CLI" and/or the "Company").

                                    RECITALS

         WHEREAS,  on the 27th day of May,  1996,  the  parties  entered  into a
binding Letter of Intent for CLI to redeem 20,000,000 shares of the common stock
of CLI from Mr.  Gao under the terms and  conditions  set forth in the Letter of
Intent,  such terms and conditions to be fully  implemented  by this  Redemption
Agreement.

         NOW,  THEREFORE,   in  consideration  of  furthering  their  respective
business interests, Mr. Sun, as the representative of Mr. Gao, and CLI do hereby
agree as follows:

         1.       The  Letter  of  Intent   dated  May  27,  1996,   is   hereby
incorporated in and made a part of this Agreement.

         2.       Mr.  Sun  and  CLI  do  hereby  jointly  appoint Leung To Kwan
Pauline,  solicitor,  as the escrow agent ("Escrow  Agent") to carry forth those
responsibilities set forth in this Agreement to be executed by the Escrow Agent.
The attached  Escrow  Agreement shall be executed by Mr. Sun, CLI and the Escrow
Agent.

         3.      CLI does hereby  rescind and renounce the 9.6%  interest it has
held in Aester Fine Chemical  Incorporated  Limited, a corporation  incorporated
under the laws of China  ("Aester") and Mr. Sun does hereby rescind and renounce
the  20,000,000  share  interest  which Mr.  Gao has held in CLI.  The books and
records of CLI shall show that the 20,000,000 CLI shares  previously held by Mr.
Gao have been  rescinded  and the books and records of Aester shall reflect that
the 9.6% interest previously held by CLI has been rescinded,  all as of the date
that CLI delivers US $2,200,000 to Mr. Sun as described in this Agreement.

         4.      Mr. Sun shall deliver to the Escrow Agent, within ten (10) days
of execution of this Agreement, the 20,000,000 CLI shares previously held by Mr.
Gao and such shares  shall serve as security  for the  obligations  of CLI to be
performed under this Agreement (as described in paragraph  below).  If CLI shall




fail to perform its  obligations  under this  Agreement by November 30, 1996 (as
set forth in paragraph below), a penalty of 3/4% per month shall be added to the
amount payable by CLI, it being the intention of the parties that the payment be
made  and the CLI  stock  be  released  to CLI.  If CLI  fails  to  perform  its
obligations  after three months past  November  30, 1996,  the Escrow Agent will
return the 20,000,000 shares to Mr. Sun for his disposition.

         5. Within ten (10) days of the execution of this  Agreement,  CLI shall
deliver to the  Escrow  Agent all  evidence  of CLI's  9.6%  interest  in Aester
previously  held by CLI.  The  Escrow  Agent  shall mark such  documentation  as
rescinded and cancelled under this Agreement and transmit such  documentation to
Mr. Sun.

         6. On or before the close of business on November 29, 1996 in Columbia,
Maryland,   USA,  CLI  shall  wire   transfer  $2.2  million  (US)  pursuant  to
instructions provided by Mr. Sun. Upon confirmation by CLI's bank that such wire
transfer has been  initiated  by the bank,  CLI shall have fully  performed  its
obligations   under  this   Agreement.   CLI's  bank  shall  send  by  facsimile
transmission  to the  Escrow  Agent  evidence  of  having  initiated  such  wire
transfer.  Upon  receipt by such  notice,  the Escrow  Agent  shall  release the
20,000,000 shares of CLI stock to CLI.

         7. Mr. Gao has given  notice to the Company that he will not be able to
serve on the Board of  Directors  and CLI shall  accept this notice as Mr. Gao's
resignation  from the  Board of  Directors  of CLI,  effective  the date of this
Agreement.  Mr. Gao will provide an expense  accounting  promptly to CLI for the
expenses  incurred in work on the cosmetic  business and other businesses of CLI
and,  following  review of the  accounting by CLI,  will be reimbursed  from the
investment  account for the  expenses  approved by CLI.  CLI is to exercise  its
reasonable  business  judgment.  This expenses  accounting shall be completed by
both parties by June 15, 1996, and the investment account balance fully resolved
by such date.  After  signing this  Agreement,  Mr. Gao will transfer the voting
power of his shares to Dr. A. Cheung,  the  representative of CLI. It is further
acknowledged  that upon signing this Agreement,  Mr. Gao and his  representative
will no longer be  financially  and legally  responsible to the operation of CLI
business.

         This Agreement reflects the full understanding of the parties and shall
be  interpreted  and enforced  under the internal laws of the State of Maryland,
USA, and the English version of this Agreement shall control its terms.


319383.001(B&F)                                    2









         IN WITNESS  WHEREOF,  the  parties,  intending  to be bound,  do hereby
execute this Agreement as of the date above written.

WITNESS                                         CHEUNG LABORATORIES, INC.



/s/_________________________                    By: /s/_______________________


                                                    MR. SUN SHOU YI, AS
                                                    REPRESENTATIVE OF MR. GAO
                                                    YU WEN



/s/_________________________                    By: /s/_______________________
                                                    Mr. Sun Shou Yi

319383.001(B&F)                                    3


278178.001(B&F)

                                    AMENDMENT


         This  Amendment  ("Amendment")  dated October 23, 1996 by and among Mr.
Sun Shou Yi ("Sun"), Mr. Ou Yang An ("Ou"), Mr. Gao Yu Wen ("Gao") (collectively
the "Gao Group") and Cheung Laboratories,  Inc., a Maryland corporation ("CLI"),
amends that certain Redemption Agreement dated June 6, 1996 between Sun as Gao's
representative  and CLI (the  "Redemption  Agreement");  that certain  Letter of
Intent  dated May 27,  1996  between  Sun as Gao's  representative  and CLI (the
"Letter);  that certain Escrow Agreement dated June __, 1996 by and among Sun as
Gao's representative, CLI and Ms. Leung To Kwan, Solicitor, S.H. Leung & Company
("Leung") (the "Escrow");  that certain Agreement to Settle  Investment  Account
dated  June 8,  1996  between  Ou and CLI  ("Agreement  to  Settle");  and  that
Irrevocable  Proxy  dated  June 6,  1996  from  Gao  ("Proxy").  The  Redemption
Agreement,  the Letter,  the Escrow,  the  Agreement to Settle and the Proxy are
collectively referred to as the "Settlement Agreements."

                                   Witnesseth:

         Whereas,  various  members of the Gao Group entered into the Settlement
Agreements with CLI; and

         Whereas,  CLI and the Gao Group  desire to clarify  that all parties in
the Gao Group agree to the terms and conditions of the Settlement Agreements and
this Amendment; and

         Whereas,  the parties desire to amend the Settlement  Agreements as set
forth below.

         Now  Therefore,  in exchange  for ten dollars  ($10) and other good and
valuable   consideration   the  receipt  and  sufficiency  of  which  is  hereby
acknowledged the Gao Group and CLI agree as follows:

                  1. Contemporaneous with the execution of this Amendment, Leung
as the  Escrow  Agent  pursuant  to this  Amendment  is  instructed  to  deliver
certificates  representing  16,000,000 shares of CLI ("Amended Shares") to Verle
Blaha, President of CLI without any restrictions, liens or encumbrances. The Gao
Group  represents and warrants to CLI that the Amended Shares are free and clear
of all encumbrances and restrictions.

                  2. The Proxy is amended to cover only the 4,000,000  shares of
CLI  remaining  in  escrow  ("Common  Shares")  and the  period  of the Proxy is
extended to the time at which the Common Shares are released to CLI or March 31,
1997 whichever event occurs first.

                  3. The  amount  payable to the Gao Group for the Common Shares
is reduced from $2,200,000 to $2,160,000 which reflects the agreed on credit for









funds remaining in the Agreement to Settle ("Cash Amount").  Notwithstanding the
Settlement Agreements,  the period of time to pay the Cash Amount is extended to
December 31, 1996 and may be extended for an  additional 3 month period upon the
payment of 3/4% per month  interest for the period January 1, 1997 through March
31, 1997.

                  4. The Cash Amount shall be wired or hand delivered to Leung's
trust account.  The Escrow Agent shall release such Cash Amount to Ou as the Gao
Group's representative  contemporaneous with sending the Common Shares to CLI by
hand delivery or DHL as follows:

                                   Verle Blaha
                            Cheung Laboratories, Inc.
                            10220-I Old Columbia Road
                          Columbia, Maryland 21046-1705

                  5. Other than the  Settlement  Agreements  as modified by this
Amendment,  all  agreements  (whether  written  or  oral),   understandings  and
covenants  between the parties are null and void. Other than as modified in this
Amendment all of the terms and  conditions of the  Settlement  Agreements  shall
remain in full force and effect.

                  6. This Amendment is not and shall not in any way be construed
as  an  admission  by  any  party,  or  any  of  their  respective   affiliates,
subsidiaries,  shareholders,  directors,  partners, agents, officers, employees,
representatives,  or attorneys of any illegal acts  whatsoever,  but constitutes
the good faith settlement of all potential claims against the parties,  or their
respective  affiliates,  subsidiaries,   successors,  shareholders,   directors,
partners, agents, officers, employees, representatives or attorneys. The parties
have entered into this Amendment in order to bring the relationship  between CLI
and the Gao Group to a final  conclusion,  to resolve all potential claims which
might be brought by any of the respective affiliates, subsidiaries,  successors,
shareholders,  directors, partners, agents, officers, employees, representatives
or  attorneys,   and  in  order  to  avoid  the  burden,   expense,  delay,  and
uncertainties of litigation.

                  7. The Gao  Group  irrevocably  and  unconditionally  remises,
releases and forever  discharges CLI and each of its past,  present,  and future
affiliates,  subsidiaries,  shareholders, partners, agents, directors, officers,
employees,    representatives,    attorneys,   successors,   heirs,   executors,
administrators,  and assigns,  and all persons acting by,  through,  under or in
concert with any of them (collectively  "Assigns"),  or any of them, of and from
any and all actions,  causes of actions,  suits,  charges,  complaints,  claims,
liabilities, obligations, promises, agreements, controversies, demands, damages,
judgments,  and expenses (including attorney's fees and costs actually incurred)
and all other  liabilities  of any nature  whatsoever,  in law or equity,  which
either  party  ever  had,  now  has  or  their  respective   heirs,   executors,



278178.001(B&F)                                                        12/11/96
                                       2










administrators, successors, or assigns hereafter may have, particularly, against
each or any of the  Assigns,  arising from or related in any way to any dealings
the  parties  have had through  the date of this  Amendment  and each party does
hereby covenant not to file a lawsuit to assert any such claims.

                  8. CLI irrevocably and unconditionally remises,  releases, and
forever  discharges the Gao Group and each of their respective heirs,  executors
and administrators (collectively "Assigns"), or any of them, of and from any and
all actions, causes of actions, suits, charges, complaints, claims, liabilities,
obligations, promises, agreements,  controversies,  demands, damages, judgments,
and expenses  (including  attorney's  fees and costs actually  incurred) and all
other liabilities of any nature whatsoever, in law or equity, which either party
ever  had,  now  has  or  their  respective  heirs,  executors,  administrators,
successors, or assigns hereafter may have, particularly,  against each or any of
the Assigns, arising from or related in any way to any dealings the parties have
had through the date of this  Amendment and each party does hereby  covenant not
to file a lawsuit to assert any such claims.

                  9. The parties  expressly  acknowledge  that this Amendment is
intended to include in its effect,  without  limitation,  all claims  which have
arisen and of which the parties  know or do not know,  should  have  known,  had
reason  to know or  suspect  to exist in their  respective  favor at the time of
execution hereof, and that this Amendment contemplates the extinguishment of any
such claim or claims.

                  10. The parties represent and certify that each is voluntarily
entering  into this  Amendment;  that the  other  parties  and their  respective
agents,  representatives,  and attorneys have made no representations concerning
the terms or effects of this Amendment  other than those contained  herein;  and
they have reviewed the Amendment with legal counsel of choice.

                  11.  The  parties  represent  and  certify  that they have not
assigned  or  otherwise  conveyed  any rights or  obligations  that they have in
connection  with  transactions  contemplated  by or  within  the  scope  of  the
Settlement Agreements or this Amendment.

                  12.  Notwithstanding  the releases set forth above, each party
agrees that it will cooperate  fully with all  reasonable  requests by the other
party, or any of their  respective  successors,  subsidiaries or affiliates,  to
participate in the preparation  for,  responses to, or prosecution or defense of
any pending or threatened litigation or governmental proceeding or investigation
by or against or involving  CLI, or any of their  successors,  subsidiaries,  or
affiliates,  relating to any events which occurred  during or as a result of the
relationship  of the parties.  Furthermore,  in the event  governmental or third
parties assert claims against CLI which involve any relationship between CLI and
the Gao Group,  CLI may assert  cross  claims and other  claims  against the Gao
Group.  In the  event  such  claims  are  successful,  the Gao  Group  agrees to
indemnify and hold harmless CLI and its affiliates.


278178.001(B&F)                                                         12/11/96
                                       3











                  13. This  Amendment  is made and entered  into in the State of
Maryland, and shall in all respects be interpreted,  enforced and governed under
the laws of said State. The federal district court of Baltimore,  Maryland shall
have jurisdiction over the parties.  The language of all parts of this Amendment
shall in all cases be construed as a whole, according to its fair meaning.

                  14. The parties  acknowledge  the  termination of all previous
agreements other than the Settlement  Agreements and this Amendment between them
by their mutual consent.

                  15.  Should any  provision  of this  Amendment  be declared or
determined by a court of competent  jurisdiction  to be illegal or invalid,  the
validity of the  remaining  parts,  terms and  provisions  shall not be affected
thereby,  and said illegal or invalid part,  term, or provision  shall be deemed
not to be a part of the Settlement Agreements and this Amendment.

                  16. The Settlement Agreements and this Amendment set forth the
entire  agreement  between the parties hereto,  and fully supersedes any and all
prior agreements or understandings  between the parties hereto pertaining to the
subject matter hereof.

                  17.  CLI  shall  file  its  Form  10-K  for the  period  ended
September 30, 1996 with the United  States  Securities  and Exchange  Commission
disclosing this Amendment and the release of any interest in the Aestar shares.

                  18. CLI covenants  that it will utilize a portion of theuse of
proceeds  on a first  priority  basis  from a public or private  offering  to be
conducted for the purpose of purchasing the Common Shares or in the  alternative
will assign its right to repurchase  the Common  Shares to private  investors to
purchase such shares directly from the Gao Group.

                  IN WITNESS WHEREOF,  and intending to be legally bound hereby,
the Gao Group and CLI have executed the foregoing Amendment.


                                            CHEUNG LABORATORIES, INC.


                                            By:________________________________
                                               Name:
                                               Title:




278178.001(B&F)                                                         12/11/96
                                       4










                                       ________________________________________
                                       Gao Yu Wen, by and through his attorney
                                       in fact, Ou Yang An

                                       ________________________________________
                                       Sun   Shou   Yi,   in   his
                                       individual  capacity and as
                                       representative  of  Gao  Yu
                                       Wen  by  and   through  his
                                       attorney  in fact,  Ou Yang
                                       An

                                       ________________________________________
                                       Ou Yang An, in his individual capacity
                                       and as representative of Gao Yu Wen




278178.001(B&F)                                                         12/11/96
                                       5



                              ARDEX EQUIPMENT, LLC
                                  [LETTERHEAD]


                                                               August 2, 1996
Dr. Augustine Y. Cheung, President
Cheung Laboratories, Inc.
10220 Old Columbia Road, Suite I
Columbia, MD  21046-1705

RE:      Binding Letter of Intent
         Rescission  of Cheung Laboratories, Inc. Investment In Ardex Equipment,
         LLC

Dear Dr. Cheung:

This letter will serve to set forth the background  and confirm our  discussions
to proceed in the following  manner to rescind the  transaction  in which Cheung
Laboratories,  Inc. ("CLI") invested $450,000 in Ardex Equipment,  LLC ("Ardex")
stock ($400,000  purchased from Ardex and $50,000 from the principals of Ardex),
$50,000 of which has been repaid from Ardex and $400,000 of which  remains as an
investment in Ardex in the form of 17.1111% of the present equity of Ardex.


1.       CLI  contracted to acquire  a controlling interest in Ardex and provide
         substantial funding  to  Ardex as part of  implementing a business plan
         for  CLI's  Industrial  Division,  which  business   plan   involved  a
         significant  investment  in  CLI by Mr. Gao Yu Wen.  Mr. Gao has become
         seriously ill, the  Industrial Division  is being  closed  and  CLI has
         entered into an agreement to redeem Mr. Gao's investment in CLI.

2.       CLI desires to rescind the remaining  $350,000  transaction  with Ardex
         and the $50,000  transaction with the principals as part of its general
         restructuring  pertaining  to  closing  its  Industrial  Division.  CLI
         desires to cancel its contract to acquire a controlling interest in and
         provide  substantial  funding to Ardex and be repaid its  investment in
         Ardex, all without prejudice to the business or opportunities of Ardex.


319383.001(B&F)                                    2









3.       $350,000 of the equity  interest of CLI  will be converted  to a 5-year
         negotiable promissory  note payable  by Ardex under the following terms
         and conditions:

         a.       Interest to be paid at the rate of 8%.
         b.       The note is payable on an  interest-only basis until principal
                    becomes due.
         c.       Principal  becomes due  and payable upon the first to occur of
                    any of the following:
                  (i)      Public or private offerings successfully completed by
                             Ardex of $1.5 million in the aggregate or more;
                  (ii)     Ninety  (90)  days  following a  year end of Ardex in
                             which sales for  the year  have been  $3,000,000 or
                             more;
                  (iii)    Ardex  having a cash balance of $800,000 or more from
                           operations; or
                  (iv)     A date 5 years from the date of the promissory note.
         d.       The promissory note to be the subject of a limited guaranty by
                  the three principals of Ardex in which each principal provides
                  a limited guaranty of  one-third of the  principal  balance of
                  the note,  the  limited guaranty  to be secured  solely by the
                  interest  each  principal  has  in Ardex and the interest each
                  principal has in options to purchase CLI stock.
         e.       The principals will provide promissory notes of $50,000 in the
                  aggregate  on the  same  terms  and  conditions  as the  Ardex
                  promissory   notes,   $22,500   payable   by   Joseph   Colino
                  (representing   the  interest  of  Joseph  Colino  and  Daniel
                  Alfieri), $12,500 payable by John Kohlman, and $15,000 payable
                  by Charles Shelton.
4.       This  transaction  is to be implemented on or before August 31, 1996 by
         the  execution  of detailed  documents  containing  standard  terms and
         conditions and  appropriate  detailed terms and conditions to implement
         this binding letter of intent.
                                             Very truly yours,

                                             /s/______________________
                                                Joseph M. Colino
                                                President
cc:      Charles C. Shelton
         John J. Kohlman

The above terms and conditions are agreed this 2nd day of August, 1996.
         CHEUNG LABORATORIES, INC.
By:      /s/ ______________________________
         Dr. Augustine Y. Cheung, President

319383.001(B&F)                                    3






                             NEW OPPORTUNITIES, LTD.
                                  [LETTERHEAD]
                                                                 August 15, 1996
Cheung Laboratories, Inc.
10220-1 Old Columbia Road
Columbia, MD 21046-1705

Attention: Board of Directors

Dr.  Augustine  Cheung had  requested  (he asked  nicely) if I would provide him
assistance in restructuring Cheung Laboratories, Inc. In a meeting on July 8, 9,
and 10,  1996 it became  very  clear from the  "Financial  Advisor,  Mr.  Warren
Stearns,  that the  "assistance"  Warren had in mind was that of a full time CEO
and President.  Further,  that the individual  selected must be "an  experienced
businessman,  competent  to  attend  to the  coordination  of  all  contemplated
activities particularly attendant to the preparation of the Company to financial
institutions and investment  bankers." After  interviewing  with Mr. Stearns,  I
believe I have his full recommendation and support.

The past two weeks, starting on July 27, I have had the opportunity to work with
Dr. Cheung and all other employees,  review extensive  correspondence files, and
meet with recommended special attorneys,  a marketing consultant,  our financial
advisor, and the leader of our technical advisory board. My conclusion,  with no
reservations,  is: we now have the  greatest  opportunity  for success that this
Company has ever had.

With that said, and if the Board of Directors approves,  I would accept the full
responsibility of CEO and President of Cheung  Laboratories,  Inc. The "By Laws"
of CLI  requires  that the  President  be a member  of the  Board of  Directors.
Therefore, I would accept that responsibility also.

I propose that the agreement and compensation be through my consulting  company,
New  Opportunities,  Ltd  (NOL).  I would  agree to  suspend  most of my current
activities  with NOL and Trans Pacific  Alliance of America  (TPA).  I do have a
consulting  commitment  to  Maytag  at a fee of U.S.  $300 per hour  that I must
honor. This should require only about one week of my time. In addition, I have a
"religious  holiday"  the first week of October  and the first week of  November
that I also must honor.

I propose the following agreement:

         5.  That the agreement be a consulting contract between CLI and NOL for
the specific services of Blaha.

319383.001(B&F)                                    
                                       1









         As an  inducement  for me to  suspend  my third  retirement,  reduce my
participation  in the activities of NOL and TPA, and to reduce my consulting fee
from U.S. $300 per hour, I propose the following compensation schedule:
         6.       Payment  of  an  initial fee of U.S. $25,000 upon the Board of
Directors  approval of Blaha as the CEO and  President.  This fee to cover costs
and expenses of reducing activity in NOL and TPA.
         7.       Payment  of  a  consulting fee of U.S. $175 per hour.  Maximum
charge of 8 hours per day and 40 hours per week  regardless of the length of the
day or week.
         8.       Reimbursement of all normal business expenses while conducting
CLI  business.  The Company  shall  provide a suitable  residence  including all
utilities in Columbia, Maryland at no charge.
         9.       Grant  a  fully  vested, transferable and divisible Warrant to
purchase  400,000  shares of CLI common stock at a strike price of U.S. $0.41 at
any time after August 14, 1996 and eight years thereafter.
         10. CLI shall  fully  indemnify  NOL and Blaha  against  any  liability
whatsoever (including legal fees and expenses) arising from claims in connection
with conducting CLI business.
         11.      The  term  of  this agreement shall be for six months starting
and effective as of July 27, 1996 and ending on January 27, 1997.
         12. This  agreement is written in casual  business  language and if the
Board of Directors so desires it may be translated  into a formal legal language
by CLI council.

By:/s/_____________________                By:/s/____________________  President
                                                 Director
    New Opportunities, Ltd.
                                                 ____________________
                                                 Director
                                                 
                                                 ____________________
                                                 Director

                                                 ____________________
                                                 Director

319383.001(B&F)                                    
                                       2







                                 PROMISSORY NOTE

         FOR VALUE RECEIVED,  Cheung  Laboratories,  Inc. (the "Company") hereby
ratifies  and  confirms  its  promise  of June 30,  1994 to pay to the  order of
Augustine Y. Cheung,  the sum of Fourty-Two  Thousand Six Hundred Sixty-Nine And
00/100 ($42,669.00)  Dollars,  together with interest thereon at the rate of 10%
per annum on the unpaid balance.

         Said principal and interest shall be due and payable December 31, 1999.

         The  Company  may prepay this note  without  penalty.  In the event any
payment  due  hereunder  is not paid  when  due,  the  entire  balance  shall be
immediately due upon demand of any holder.  Upon default,  the company shall pay
all  reasonable  attorney fees and costs  necessary  for the  collection of this
note.
         Signed this 9th day of December, 1996.
                                                       For the Company:

                                                       /s/Verle D. Blaha
                                                       Verle D. Blaha, President
                                                       Cheung Laboratories, Inc.

319383.001(B&F)                                    
                                       1



                                 PROMISSORY NOTE

         FOR VALUE RECEIVED,  Cheung  Laboratories,  Inc. (the "Company") hereby
ratifies  and confirms its promise of January 26, 1987 to pay to the order of of
Augustine Y. Cheung,  the sum of Seventy-Eight  Thousand Seven Hundred and Fifty
And 00/100 ($78,750.00)  Dollars,  together with interest thereon at the rate of
10% per annum on the unpaid balance.

         Said principal and interest shall be due and payable December 31, 1999.
         
         The  Company  may prepay this note  without  penalty.  In the event any
payment  due  hereunder  is not paid  when  due,  the  entire  balance  shall be
immediately due upon demand of any holder.  Upon default,  the company shall pay
all  reasonable  attorney fees and costs  necessary  for the  collection of this
note.
         Signed this 9th day of December, 1996.

                                                      For the Company:

                                                      /s/ A.Y. Cheung
                                                      A.Y. Cheung, President
                                                      Cheung Laboratories, Inc.








                                   DEMAND NOTE

         FOR VALUE RECEIVED,  Cheung Laboratories,  Inc. (the "Borrower") hereby
ratifies  and confirms its promise of October 2, 1990 to pay to the order of Ada
Lam (the "Holder") the sum of TWENTY-EIGHT THOUSAND FIVE HUNDRED AND TWO DOLLARS
($3,000.00),  together with interest thereon at the rate of 12% per annum on the
unpaid balance, on demand.
         In the  event  of  default,  the  Borrower  shall  pay  all  reasonable
attorney's fees and costs necessary for the collection of this obligation.
         The effective date of this Demand Note is October 2, 1990.
         IN WITNESS WHEREOF, the undersigned has ratified the above-described
obligation on this 9th day of December, 1996.

                                                     CHEUNG LABORATORIES, INC.

                                                By: ___________________________
                                                     Verle D. Blaha, President



318350.002(B&F)                                                         12/10/96
                                       1

                 THIS SECURITY HAS NOT BEEN REGISTERED UNDER THE
                 SECURITIES ACT OF 1933 OR UNDER THE SECURITIES
                     LAW OF ANY STATE AND MAY NOT BE SOLD OR
                  TRANSFERRED UNLESS REGISTERED UNDER THAT ACT
                    AND ANY APPLICABLE STATE SECURITIES LAWS
                 OR AN EXEMPTION FROM REGISTRATION IS AVAILABLE.

                            CHEUNG LABORATORIES, INC.
                       8% SENIOR SECURED CONVERTIBLE NOTE
                                             
                                                             Baltimore, Maryland
                                                                  July ___, 1996
         FOR VALUE RECEIVED,  CHEUNG LABORATORIES,  INC., a Maryland corporation
(the  "Corporation")  promises  to  pay  to  __________________,  or  registered
assigns, (the "Holder") the principal amount of ________________________ Dollars
($________)  (the  "Principal  Amount") on or before  December  31,  1997,  with
accrued  interest as provided  below,  all  subject to the  following  terms and
conditions.

         Interest  (computed  on the  basis of a 360-day  year of twelve  30-day
months) on the unpaid  Principal Amount shall accrue at the rate of 8% per annum
from the date hereof.

         All payments of  principal  of and  interest on this 8% Senior  Secured
Convertible  Note (the "Note") are secured  pursuant to a Loan Agreement,  and a
Pledge  Agreement,  both dated July 1, 1996 which apply to this series of bridge
financing  notes  (the  "Notes"),  and shall be made in  currency  of the United
States of America as at the time of payment shall be legal tender for payment of
public  and  private  debts.  Should an Event of  Default  occur  under the Loan
Agreement, this Note shall be accelerated and be immediately due and payable

         This Note and the Notes shall be senior  indebtedness of CLI and have a
priority over payment of any other  indebtedness of CLI, such other indebtedness
of CLI to be repaid only after the full repayment of the Principal  Amount,  and
accrued  interest,  due  hereunder  and under the other  Notes.  This Note shall
mature and the entire  Principal Amount thereof and all accrued interest thereon
shall become due and payable on December 31, 1997;  provided that, at the option
of the Holder this Note may be paid by the Holder electing:

         A.  To be  repaid  from  the  proceeds  of a  private  offering  by the
Corporation,  or a series of private  offerings,  which aggregate  $8,000,000.00
(U.S.)  or more  prior  to  December  31,  1997,  and  involve  the  sale of the
Corporation's common stock,  preferred stock,  long-term debt,  convertible debt
(other than this Note), or other similar  security or financial  instrument (the
"Private Offering"); or


318350.002(B&F)                                                         12/10/96
                                       2









         B. On the date of  maturity  to convert  the  Principal  Amount and any
unpaid  accrued  interest  into common stock of the  Corporation.  If the Holder
shall elect to so convert the Note,  the number of shares of common  stock to be
received by the Holder shall be the greater of:

                  (i)      the number of shares determined by pricing the common
                           stock  of  the   Corporation   at  $.41   per   share
                           (representing  the closing  price of the common stock
                           of the  Corporation  as quoted  on  NASDAQ  (Bulletin
                           Board) on May 31, 1996); or

                  (ii)     the  lowest  price  per  share  in the  Corporation's
                           Private   Offering   on  the  same   terms  as  other
                           participants  in such  Private  Offering (on a common
                           stock  equivalency  basis if the Private  Offering is
                           other than common stock).

         If any  payment  of  interest  is not made on the date when due for any
reason,  or the  Principal  Amount  shall not be paid when  payable,  whether at
maturity or by  acceleration  or otherwise,  interest shall accrue on any amount
overdue more than 30 days at a rate equal to 18% per annum  (computed based on a
360-day year applied to twelve 30-day  months) until such overdue amount is paid
in full.

         This Note shall be governed by and  construed  in  accordance  with the
internal laws of the State of Maryland.

         IN WITNESS WHEREOF,  Cheung  Laboratories,  Inc. has executed this Note
under seal as of the date and year first above written.

                                          CHEUNG LABORATORIES, INC.


                                    By:   ___________________________
                                          Dr. Augustine Y. Cheung, President
[CORPORATE SEAL]

Attest

_____________________________
Secretary:
c:\wpwin\bridgcli\convnot.8%


318350.002(B&F)                                                         12/10/96
                                       3








                          REGISTRATION RIGHTS AGREEMENT

         THIS REGISTRATION  RIGHTS AGREEMENT (the "Agreement") is made by Cheung
Laboratories,  Inc., a Maryland corporation (the "Company"),  for the benefit of
the undersigned  investor  ("Investor",  collectively,  the  "Investors").  This
Agreement  shall become  effective upon acceptance and closing in respect of the
related  subscription  for  the  Senior  Secured  Convertible  Promissory  Notes
("Notes")  and  the  shares  of  common  stock  underlying  the  Notes,  and the
associated  warrants to purchase common stock of the Company  ("Warrants").  The
Notes and the Warrants are collectively  referred to herein as the "Securities."
The common  stock of the Company  into which the Notes are  convertible  and the
common stock  issuable upon exercise of the Warrants shall be referred to herein
collectively as the "Underlying Stock."

                                 R E C I T A L S

         A. The Investors  desire to purchase from the Company,  and the Company
desires to issue and sell to the Investors,  up to an aggregate of $1,200,000 in
face amount of Notes and  associated  Warrants as described in the  Confidential
Offering  Memorandum  dated July 1, 1996 and all of the  Exhibits  thereto  (the
"Offering Memorandum").

         B. As further  inducement  for the  Investors to purchase the Notes and
Warrants from the Company,  the Company  desires to undertake to register  under
the Securities Act of 1933, as amended, and the rules and regulations thereunder
(collectively,  the "Securities Act"), the Underlying Stock six months after the
Company effects a registration,  on any applicable  form, of newly issued common
stock at any time while the Investor holds the Notes, the Warrants,  some or all
of the Underlying  Stock.  This Agreement sets forth the terms and conditions of
such undertaking.

         The Company and the Investor agree as follows:

         1.       Definitions.  For purposes of this Agreement:

                  (a) The  terms  "register,"  "registered"  and  "registration"
refer  to a  registration  effected  by  preparing  and  filing  a  registration
statement or statements or similar  documents in compliance  with the Securities
Act and  pursuant to Rule 415 under the  Securities  Act or any  successor  rule
providing for offering  securities on a continuous  basis ("Rule 415"),  and the
declaration  or ordering of  effectiveness  of such  registration  statement  or
document by the Securities and Exchange Commission (the "SEC");

                  (b)  The  term   "Registerable   Securities"   means  (i)  the
Underlying  Stock,  and  (ii) any  common  stock of the  Company  issued  as (or
issuable upon the conversion or exercise of any convertible  security,  warrant,
right or other security which is issued as) a dividend or










other  distribution with respect to, or in exchange for or in replacement of any
Note, Warrant,  or any Underlying Stock,  excluding in all cases,  however,  any
Registerable  Securities sold by a holder of such  Registerable  Securities in a
transaction  in which its  registration  rights  under  this  Agreement  are not
assigned.

                  (c) The  Investors  and  assignees  with  registration  rights
assigned  to them  pursuant  to Section 8 of this  Agreement  may be referred to
herein  collectively  as "Holders" of  Registerable  Securities  and each may be
referred to herein as a "Holder" of Registerable Securities.

         2.       Registration.

                  (a)  Automatic   Registration  Right  -  (i)  Subject  to  the
provisions of Section 3(a),  below,  not earlier than six months after the final
closing date (the "Closing  Date") of a registered  offering of the common stock
of the Company to the general public covered by a registration  statement  under
the  Securities  Act,  the  Company  shall use its best  efforts  to effect  the
registration under the Securities Act of all Registerable Securities;  provided,
however,  that a Holder of  Registerable  Securities  may inform the  Company in
writing  that  it  wishes  to  exclude  all or a  portion  of  its  Registerable
Securities  from such  registration  and upon  such  notice,  such  Registerable
Securities shall be excluded from such registration.

                  (i) The holders of a majority in interest of the  Registerable
Securities shall have the right to select the managing underwriters, if any, and
to  approve  the  terms  of  the  underwriting  agreement  in  respect  of  such
registration,  subject  to the  approval  of the  Company,  which  shall  not be
unreasonably withheld.

                  (iii) The  Company  is  obligated  to use its best  efforts to
effect  only  one  such  registration  pursuant  to  this  Section  2(a) of this
Agreement.

                  (b)  Piggyback  Registration  - (i) On an unlimited  number of
occasions,  and subject to the terms of this Agreement, in the event the Company
decides to register any of its common  stock  (either for its own account or the
account  of a  security  holder or  holders,  other  than in  connection  with a
registration  being  effected  pursuant  to Section  2(a)  above) on an SEC form
(other  than S-4 or S-8) that would be  suitable  for a  registration  involving
Registerable  Securities,  the Company  will:  (x) promptly  give each Holder of
Registerable  Securities  written  notice thereof (which shall include a list of
jurisdictions  in which the Company intends to qualify such securities under the
applicable  Blue Sky or other  state  securities  laws) and (y)  include in such
registration (and in any related  qualification under the Blue Sky laws or other
state  securities  laws),  and in any  underwriting  involved  therein,  all the
Registerable  Securities specified in a written request delivered to the Company
by any Holder of Registerable  Securities  within 20 days after delivery of such
written notice from

                                      - 2 -









the Company.  Nothing  contained in this Section 2(b) shall limit the ability of
the Company to withdraw a  Registration  Statement it has filed either before or
after effectiveness.

                  (ii) If the  registration  of which the Company  gives  notice
pursuant to Section  2(b)(i) is for a registered  public  offering  involving an
underwriting, the Company shall so advise the Holders of Registerable Securities
as a part of the written notice given pursuant to Section 2(b)(i). In such event
the right of any Holder of  Registerable  Securities  to  registration  shall be
conditioned   upon  such   underwriting  and  the  inclusion  of  such  Holders'
Registerable  Securities  in such  underwriting  to the extent  provided in this
Section 2(b).  All Holders of  Registerable  Securities  proposing to distribute
their securities  through such an underwriting  shall (together with the Company
and the other holders  distributing  their securities through such underwriting)
enter into an underwriting  agreement with the Underwriter's  representative for
such offering;  provided that such holders shall have no right to participate in
the selection of the underwriters for an offering pursuant to this Section 2(b).

                  (iii) In the event the  Underwriters'  representative  advises
the Holders of  Registerable  Securities  seeking  registration  of Registerable
Securities  pursuant  to  this  Section  2(b) in  writing  that  market  factors
(including,  without limitation,  the aggregate number of shares of common stock
requested to be registered,  the general condition of the market, and the status
of the persons  proposing  to sell  securities  pursuant  to this  registration)
require  a  limitation  of  the  number  of  shares  to  be  underwritten,   the
Underwriter's  representative  may exclude some or all  Registerable  Securities
from such  registration  and  underwriting.  In such  event,  the  Underwriters'
representative  shall so advise all Holders of  Registerable  Securities  of the
number  of  shares  of  Registerable  Securities  that may be  included  in such
registration and underwriting (if any), and the number of shares of Registerable
Securities that may be included in such  registration  and underwriting (if any)
shall be allocated  among all holders  seeking  registration  in proportion,  as
nearly as  practicable,  to the number of shares  proposed to be included in the
registration by the Holder.  The number of shares of Registerable  Securities to
be  included  in  such  underwriting  shall  not be  reduced  unless  all  other
securities (other than those sold by the Company) are similarly limited from the
underwriting.  No Registerable  Securities or other securities excluded from the
underwriting  by  reason  of  this  Section  2(b)  shall  be  included  in  such
Registration Statement.

                  (iv) If any Holder of Registerable Securities,  or a holder of
other  securities  entitled (upon request) to be included in such  registration,
disapproves of the terms of any underwriting,  such Holder may elect to withdraw
therefrom by written  notice to the Company  delivered at least 20 days prior to
the effective date of the Registration Statement.

         3.      Obligations of the Company.  When required under this Agreement
to effect the registration of the Registerable Securities, the Company shall, as
expeditiously as reasonably possible, use its best efforts to:


                                      - 3 -









                  (a) Prepare and file with the SEC a registration  statement or
statements or similar documents (the  "Registration  Statement") with respect to
all Registerable Securities,  other than any Registerable Securities excluded by
Holders  of  Registerable   Securities  pursuant  to  Section  2(a),  cause  the
Registration  Statement to become  effective not later than six months after the
closing date of the Company's Next Public  Offering of common stock and keep the
Registration  Statement  effective  pursuant  to Rule 415 at all times until the
earlier of (i) the third  anniversary of the final closing date of the Company's
offering of Notes and Warrants to the  Investors,  or (ii) the date on which all
Investors can sell any of the  Registerable  Securities  pursuant to Rule 144 of
the  Securities Act without  restriction  under Rule 144(e)  thereof;  provided,
however, that if a public offering of common stock by the Company is closed on a
date that is more  than two  years  following  the  first  date  each  Holder of
Registerable  Securities held such  Registerable  Securities,  the Company shall
have  no  obligation  to  file a  Registration  Statement  in  respect  of  such
registerable  securities pursuant to this Agreement,  except pursuant to Section
2(b).

                  (b) Prepare and file with the SEC such  amendments  (including
post-effective amendments) and supplements to the Registration Statement and the
Prospectus  used  in  connection  with  the  Registration  Statement  as  may be
necessary to keep the  Registration  Statement  effective at all times until the
earlier of (i) the third  anniversary of the final closing date of the Company's
offering of the Notes and Warrants,  or (ii) the date on which all Investors can
sell their respective shares of Registerable  Securities pursuant to Rule 144 of
the Securities Act without restriction under Rule 144(e) thereof,  and to comply
with the provisions of the Securities Act with respect to the disposition of all
securities covered by the Registration Statement.

                  (c) Furnish promptly to the Holders of Registerable Securities
such numbers of copies of a prospectus,  including a preliminary prospectus, and
all amendments and supplements  thereto,  in conformity with the requirements of
the  Securities  Act, and such other  documents  as the Holders of  Registerable
Securities  may  reasonably  request in order to facilitate  the  disposition of
Registerable Securities.

                  (d)  Register  and  qualify  the  securities  covered  by  the
Registration  Statement  under  such other  securities  or Blue Sky laws of such
jurisdictions as shall be reasonably  requested by the Investors and prepare and
file  in  those   jurisdictions   such  amendments   (including   post-effective
amendments)  and  supplements and to take such other actions as may be necessary
to maintain such registration and qualification in effect at all times until the
earlier of (i) the third  anniversary  of the final  closing date of the Company
offering of the Notes and Warrants,  or (ii) the date on which all Investors can
sell their respective shares of Registerable  Securities pursuant to Rule 144 of
the Securities Act with out restriction  under Rule 144(e) thereof,  and to take
all other  actions  necessary  or advisable  to enable the  disposition  of such
securities  in such  jurisdictions,  provided  that  the  Company  shall  not be
required in connection therewith or as a condition thereto to qualify to do

                                      - 4 -









business  or to file a general  consent to service of process in any such states
or jurisdictions or to provide any undertaking or make any change in its charter
or bylaws  which the Board of  Directors  determines  to be contrary to the best
interest of the Company and its stockholders.

                  (e) In the event the  holders of a majority in interest of the
Registerable  Securities  select  underwriters for the offering,  enter into and
perform its obligations under an underwriting  agreement, in usual and customary
form, including, without limitation,  customary indemnification and contribution
obligations, with the managing underwriter of such offering. The Investors shall
also enter into and perform their customary obligations under any such agreement
including,  without  limitation,   customary  indemnification  and  contribution
obligations.

                  (f) Notify the Holders of Registerable Securities, at any time
when  a  prospectus   relating  to  Registerable   Securities   covered  by  the
Registration  Statement is required to be delivered under the Securities Act, of
the happening of any event as a result of which the  prospectus  included in the
Registration  Statement,  as then in effect,  includes an untrue  statement of a
material fact or omits to state a material fact required to be stated therein or
necessary  to make  the  statements  therein  not  misleading  in  light  of the
circumstances then existing.  The Company shall promptly amend or supplement the
Registration Statement to correct any such untrue statement or omission.

                  (g)  Notify  the  Holders of  Registerable  Securities  of the
issuance  by the SEC of any  stop  order  suspending  the  effectiveness  of the
Registration  Statement or the initiation of any  proceedings  for the purposes.
The Company  will make every  reasonable  effort to prevent the  issuance of any
stop order and, if any stop order is issued,  to obtain the  lifting  thereof at
the earliest possible time.

                  (h)  Permit a single  firm of  counsel  designated  as selling
stockholders'  counsel  by  the  holders  of  a  majority  in  interest  of  the
Registerable Securities commencing at a reasonable period of time prior to their
filing, to review the Registration  Statement and all amendments and supplements
thereto  and  shall  not  file any  document  in a form to  which  such  counsel
reasonably objects.

                  (i) Make generally  available to its security  holders as soon
as practicable, but not later than 90 days after the close of the period covered
thereby,  an earnings  statement (in form  complying with the provisions of Rule
158 under the  Securities  Act) covering a 12- month period  beginning not later
than the first day of the Company's  fiscal quarter next following the effective
date of the Registration Statement.

                  (j)  At the request of the Holders of Registerable Securities,
furnish  to the  underwriters  on the  date  that  Registerable  Securities  are
delivered to the underwriters for sale

                                      - 5 -









in connection  with a  registration  pursuant to this  Agreement (i) an opinion,
dated such date,  of the counsel  representing  the Company for the  purposes of
such registration, in form and substance as is customarily given to underwriters
in an underwritten  public offering,  addressed to the underwriters,  and (ii) a
letter dated such date, from the independent certified public accountants of the
Company, in form and substance as is customarily given by independent  certified
public accountants to underwriters in an underwritten public offering, addressed
to the underwriters.

                  (k)  Make   available   for   inspection  by  the  Holders  of
Registerable Securities, any underwriters participating in the offering pursuant
to the registration and the counsel, accountants or other agents retained by the
Investors,  all pertinent  financial and other records,  corporate documents and
properties  of the Company,  and cause the  Company's  officers,  directors  and
employees to supply all  information  reasonably  requested by the  Investors in
connection with the registration.

                  (l)  If  the  Common  Stock  is  then  listed  on  a  national
securities  exchange,  cause the  Registerable  Securities  to be listed on such
exchange.  If the  Common  Stock is not then  listed  on a  national  securities
exchange, facilitate the reporting of the Common Stock on NASDAQ.

                  (m)  Provide a transfer  agent and  registrar,  which may be a
single entity, for the Registerable Securities not later than the effective date
of the Registration Statement.

                  (n)  Take all  actions  necessary  to  facilitate  the  timely
preparation  and delivery of certificates  (not bearing any restrictive  legend)
representing the Registerable Securities to be sold pursuant to the Registration
Statement  and to  enable  such  certificates  to be in such  denominations  and
registered in such names as the Holders of such  Registerable  Securities or any
underwriters may reasonably request.

                  (o) Take all other  reasonable  actions  necessary to expedite
and  facilitate  disposition  by the  Investors of the  Registerable  Securities
pursuant to the Registration Statement.

         4.  Furnish  Information.  It shall  be a  condition  precedent  to the
obligations  of the Company to take any action  pursuant to this  Agreement with
respect to each Investor  that such  Investor  shall furnish to the Company such
information  regarding itself,  the Registerable  Securities held by it, and the
intended  method  of  disposition  of such  securities  as shall  be  reasonably
required to effect the  registration  of the  Registerable  Securities and shall
execute such documents in connection  with such  registration as the Company may
reasonably request.

         5.       Expenses of Registration.  All expenses incurred in connection
with  registration,  filings or  qualifications  pursuant  to  Sections 2 and 3,
including without

                                      - 6 -









limitation,  all registration,  listing, filing and qualification fees, printers
and accounting  fees, the fees and  disbursements of counsel for the Company and
the reasonable fees and  disbursements  of one form of counsel for the Investors
shall be borne by the Company (except in the case of the automatic  registration
pursuant to Section 2(a) for which  underwriter  discounts and commissions shall
not be borne by the Company).

         6.       Indemnification.  In the event any Registerable Securities are
included in a Registration Statement:

                  (a) To the extent permitted by law, the Company will indemnify
and hold  harmless  each  Investor,  the  directors,  employees,  agents and the
officers of the Company, each person who signs the Registration  Statement,  and
each person,  if any, who controls any of them, any  underwriter  (as defined in
the Securities Act) for such Holders of Registerable Securities and each person,
if any, who controls any such  underwriter  within the meaning of the Securities
Act or the Securities Exchange Act of 1934, as amended (the "1934 Act"), against
any losses, claims, damages, expenses or liabilities (or actions or proceedings,
whether  commenced or threatened,  in respect  thereof)  arising out of or based
upon any of the following statements,  omissions or violations (collectively,  a
"Violation"): (i) any untrue statement or alleged untrue statement of a material
fact  contained  in  the  Registration  Statement,   including  any  preliminary
prospectus  or  final  prospectus   contained   therein  or  any  amendments  or
supplements  thereto,  (ii) the omission or alleged  omission to state therein a
material fact required to be stated therein, or necessary to make the statements
therein,  in light of the circumstances in which they were made, not misleading,
or (iii) any  violation or alleged  violation  by the Company of the  Securities
Act,  the  1934  Act,  any  state  securities  laws or any  rule  or  regulation
promulgated under the Securities Act, the 1934 Act or any state securities laws;
and the Company  will  reimburse  the  Investors  and each such  underwriter  or
controlling  person,  promptly as such expenses are  incurred,  for any legal or
other expenses  reasonably  incurred by them in connection with investigating or
defending  any such  loss,  claim,  damage,  liability,  action  or  proceeding;
provided,  however,  that the indemnity agreement contained in this Section 6(a)
shall not apply to amounts paid in settlement of any such loss,  claim,  damage,
liability or action if such  settlement  is effected  without the consent of the
Company, which consent shall not be unreasonably withheld, nor shall the Company
be liable in any such  case for any such  loss,  claim,  damage,  liability,  or
action to the extent  that it arises out of or is based upon a  Violation  which
occurs in reliance upon and in  conformity  with written  information  furnished
expressly for use in connection  with such  registration by the Investors or any
such underwriter or controlling person, as the case may be. Such indemnity shall
remain in full force and effect  regardless of any  investigation  made by or on
behalf of the Investors or any such underwriter or controlling  person and shall
survive  the  transfer  of  the  Registerable   Securities  by  the  Holders  of
Registerable Securities.


                                      - 7 -









                  (b)  To  the  extent   permitted   by  law,   each  Holder  of
Registerable  Securities,  severally  and not jointly,  will  indemnify and hold
harmless  the  Company,  each of its  directors,  each of its  officers who have
signed the Registration Statement, each person, if any, who controls the Company
within the meaning of the  Securities Act or the 1934 Act, any  underwriter  and
any other stockholder selling securities pursuant to the Registration  Statement
of any of its  directors or officers or any person who  controls  such holder or
underwriter,  against  any  losses,  claims,  damages of  liabilities  (joint or
several) to which any of them may become subject,  under the Securities Act, the
1934 Act of other federal or state law, insofar as such losses,  claims, damages
or  liabilities  (or actions in respect  thereof) arise out of or are based upon
any  Violation,  in each case to the extent (and only to the  extent)  that such
Violation  occurs in reliance  upon and in conformity  with written  information
furnished  by  such  Holder  of  Registerable  Securities  expressly  for use in
connection with such  registration;  and such Holder of Registerable  Securities
will reimburse any legal or other expenses reasonably incurred by any of them in
connection  with  investigating  or  defending  any such  loss,  claim,  damage,
liability or action;  provided,  however, that the indemnity agreement contained
in this Section 6(b) shall not apply to amounts paid in  settlement  of any such
loss, claim, damage,  liability or action if such settlement is effected without
the consent of such Holder of Registerable  Securities,  which consent shall not
be  unreasonably  withheld;  and provided,  further,  that the Investor shall be
liable under this paragraph for only that amount of losses,  claims, damages and
liabilities  as does not exceed the proceeds to such Investor as a result of the
sale of Registerable Securities pursuant to such registration.

                  (c) Promptly after receipt by an indemnified  party under this
Section  6  of  notice  of  the  commencement  of  any  action   (including  any
governmental action), such indemnified party will, if a claim in respect thereof
is to be made  against any  indemnifying  party under this Section 6, deliver to
the  indemnifying  party a written  notice of the  commencement  thereof and the
indemnifying  party shall have the right to  participate  in, and, to the extent
the indemnifying  party so desires,  jointly with any other  indemnifying  party
similarly  noticed,  to assume  control  of the  defense  thereof  with  counsel
mutually  satisfactory to the parties;  provided,  however,  than an indemnified
party shall have the right to retain its own counsel, with the fees and expenses
to be paid by the indemnifying  party, if, in the reasonable  opinion of counsel
for the indemnifying  party,  representation  of such  indemnified  party by the
counsel retained by the indemnifying party, would be inappropriate due to actual
or potential  differing  interests  between such indemnified party and any other
party  represented  by such counsel in such  proceeding.  The failure to deliver
written  notice  to the  indemnifying  party  within  a  reasonable  time of the
commencement  of any such action shall  relieve such  indemnifying  party of any
liability  to the  indemnified  party  under  this  Section 6 only to the extent
prejudicial to its ability to defend such action, but the omission so to deliver
written  notice to the  indemnifying  party will not relieve it of any liability
that it may have to any  indemnified  party otherwise than under this Section 6.
The  indemnification  required  by  this  Section  6 shall  be made by  periodic
payments of the amount thereof during

                                      - 8 -









the course of the  investigation  or defense,  promptly as such  expense,  loss,
damage or liability is incurred.

                  (d) To the extent any indemnification by an indemnifying party
is  prohibited  or limited by law,  the  indemnifying  party  agrees to make the
maximum contribution with respect to any amounts for which it would otherwise be
liable under this Section 6 to the extent permitted by law, provided that (i) no
contribution  shall be made under  circumstances  where the maker would not have
been  liable for  indemnification  under the fault  standards  set forth in this
Section  6, (ii) no  seller  of  Registerable  Securities  guilty of  fraudulent
misrepresentation  (within the meaning of Section 11(f) of the  Securities  Act)
shall be entitled to contribution from any seller of Registerable Securities who
was not guilty of such fraudulent  misrepresentation,  and (iii) contribution by
any  seller of  Registerable  Securities  shall be  limited in amount to the net
amount of proceeds  received  by such seller from the sale of such  Registerable
Securities.

         7. Reports Under Securities Exchange Act of 1934. With a view to making
available to the Holders of Registerable Securities the benefits of SEC Rule 144
promulgated under the Securities Act and any other rule or regulation of the SEC
that may at any time permit the  Investors to sell  securities of the Company to
the public without registration, the Company agrees to:

                  (a)      make and keep public information available,  as those
terms are understood and defined in SEC Rule 144, at all times;

                  (b)      file with the SEC in a timely  manner all reports and
other  documents  required of the Company under the  Securities Act and the 1934
Act; and

                  (c) furnish to each Holder of Registerable Securities, so long
as such Holder of  Registerable  Securities  owns any  Registerable  Securities,
forthwith  upon  request  (i) a written  statement  by the  Company  that it has
complied with the reporting requirements of SEC Rule 144, the Securities Act and
the 1934 Act, (ii) a copy of the most recent  annual or quarterly  report of the
Company and such other reports and documents so filed by the Company,  and )iii)
such other information as may be reasonably  requested in availing the Investors
of any rule or  regulation  of the SEC which  permits  the  selling  of any such
securities without registration.

         8.  Assignment of Registration  Rights.  The rights to have the Company
register  Registerable  Securities pursuant to this Agreement may be assigned by
the  Holders  of  Registerable  Securities,  subject  to  the  Holders  of  such
Registerable  Securities and such assignment  being in compliance with the terms
of this Agreement and any agreements  incorporated  herein,  and subject to such
assignment  being in conformity with federal and state securities law, rules and
regulations, unless exempt therefrom; to transferees or

                                      - 9 -









assignees,  of such  securities  provided such  transferee or assignee  within a
reasonable time after such transfer, furnishes the Company written notice of the
name and address of such  transferee or assignee and the securities with respect
to which such registration rights are being assigned;  provided,  further,  that
such assignment  shall be effective only if immediately  following such transfer
the further  disposition  of such  securities  by the  transferee or assignee is
restricted  under  the  Securities  Act.  The  term  "Investor"  as used in this
Agreement shall include permitted assignees.

         9.       Miscellaneous.

                  (a) Notices  required or permitted to be given hereunder shall
be in  writing  and shall be deemed to be  sufficiently  given  when  personally
delivered or sent by registered mail,  return-receipt request,  addressed (i) if
to the Company at Cheung Laboratories, Inc. c/o Augustine Cheung, PhD., Chairman
of the Board and Chief Executive Office at 10220-I Old Columbia Road,  Columbia,
Maryland 21046-1705,  and (ii) if to an Investor, at the address set forth under
his name in the  Subscription  Agreement,  or at such other address as each such
party shall furnish by notice given in accordance with this Section 9(a).

                  (b) Failure of any party to exercise any right or remedy under
this  Agreement or otherwise,  or delay by a party in  exercising  such right to
remedy, will not operate as a waiver thereof. No waiver will be effective unless
and until it is in writing and signed by the party giving the waiver.

                  (c) The Agreement shall be enforced, governed and construed in
all respects in accordance with the laws of the State of Maryland,  as such laws
are applied by Maryland courts to agreements entered into and to be performed in
Maryland by and between  residents of Maryland.  In the event that any provision
of this Agreement is invalid or  unenforceable  under any applicable  statute or
rule of law, then such provision shall be deemed  inoperative to the extent that
it may  conflict  therewith  and shall be deemed  modified to conform  with such
statute  or rule of law.  Any  provision  hereof  which  may  prove  invalid  or
unenforceable  under any law shall not affect the validity or  enforceability of
any other provision hereof.

                  (d) The Company  will not,  after the date of this  Agreement,
enter into any agreement  with respect to its securities  which is  inconsistent
with the  rights  granted  to the  Holders of  Registerable  Securities  in this
Agreement or otherwise conflicts with the provisions hereof.

                  (e) The provisions of this Agreement, including the provisions
of this sentence, may not be amended,  modified or supplemented,  and waivers or
consents to departures  from the  provisions  hereof may not be given unless the
Company has  obtained  the written  consent of holders of at least a majority of
shares of the Registerable Securities.

                                     - 10 -









Notwithstanding  the  foregoing,  a waiver  or  consent  to  departure  from the
provisions  hereof with respect to a matter  which  relates  exclusively  to the
rights of Holders of  Registerable  Securities  whose  securities are being sold
pursuant to a  Registration  Statement and which does not directly or indirectly
affect the rights of other Holders of  Registerable  Securities  may be given by
the holders of a majority  of the shares of the  Registerable  Securities  being
sold by such holders,  provided that the  provisions of this sentence may not be
amended,  modified,  or supplemented except in accordance with the provisions of
the immediately preceding sentence.

                  (f) Subject to Section 8 hereof, this Agreement shall inure to
the benefit of and be binding upon the successors and permitted  assigns of each
of the parties, including without limitation and without the need for an express
assignment, subsequent holders of Registerable Securities.

                  (g)  This   Agreement   may  be  executed  in  any  number  of
counterparts and by the parties hereto in separate counterparts and by facsimile
signatures, each of which when so executed shall be deemed to be an original and
all of which taken together shall constitute one and the same agreement.

                  (h) This  Agreement  is  intended  by the  parties  as a final
expression  of their  agreement  and  intended  to be a complete  and  exclusive
statement of the agreement and understanding of the parties hereto in respect of
the  subject  matter  contained  herein.  There are no  restrictions,  promises,
warranties  or  undertakings,  other than those set forth or  referred to herein
with respect to the  registration  rights granted by the Company with respect to
the securities sold in connection with the Offering.  This Agreement  supersedes
all prior agreements and understanding  between the parties with respect to such
subject matters.

Dated this ____ day of July, 1996.

INVESTOR:                                          CHEUNG LABORATORIES, INC.



______________________________       By:  ____________________________
Signature

______________________________    Title:  ____________________________
Printed Name



                                     - 11 -








    THE SECURITIES  REPRESENTED  HEREBY HAVE NOT BEEN REGISTERED  UNDER THE
    SECURITIES  ACT OF 1933,  AS AMENDED OR ANY STATE  SECURITIES  LAWS AND
    NEITHER THE SECURITIES NOR ANY INTEREST  THEREIN MAY BE OFFERED,  SOLD,
    TRANSFERRED,  PLEDGED OR  OTHERWISE  DISPOSED OF EXCEPT  PURSUANT TO AN
    EFFECTIVE  REGISTRATION  STATEMENT  UNDER  SUCH ACT OR SUCH  LAWS OR AN
    EXEMPTION FROM REGISTRATION  UNDER SUCH ACT AND SUCH LAWS WHICH, IN THE
    OPINION OF COUNSEL  FOR THE  HOLDER,  WHICH  COUNSEL  AND  OPINION  ARE
    REASONABLY SATISFACTORY TO COUNSEL FOR  THIS CORPORATION,  IS AVAILABLE.


                                 July ___, 1996


                      WARRANT TO PURCHASE SHARES OF COMMON
                       STOCK OF CHEUNG LABORATORIES, INC.

         This certifies that _____________ (the "Holder"), for a value received,
is entitled,  subject to the  adjustment and to the other terms set forth below,
to  purchase  from  Cheung  Laboratories,  Inc.,  a  Maryland  corporation  (the
"Company),  at the Stock  Purchase Price (as defined below) that number of fully
paid and nonassessable shares of the Company's $0.01 par value Common Stock (the
"Stock") as equals $________________  divided by the Stock Purchase Price, which
shall be the common stock equivalent  price of the private  placement to be sold
by the  Company in the Fall of 1996 in an  aggregate  offering  of not less than
$8,000,000 (anticipated to be at the price of $4.00 to $5.00 per share of common
stock equivalent and hereinafter  referred to as the "Private  Offering").  This
Warrant shall be  exercisable  at any time on and after six months from the date
of the next public stock offering  ("Next Public  Offering") of the Company (the
"Commencement  Date")  but not  later  than 5:00  P.M.  (New  York  Time) on the
Expiration  Date (as  defined  below),  upon  surrender  to the  Company  at its
principle office at 10220-I Old Columbia Road,  Columbia,  Maryland  21046-1705,
Attention:  Dr. Augustine  Cheung,  Chairman of the Board of Directors and Chief
Executive Officer (or at such other location as the Company may advise Holder in
writing)  of this  Warrant  properly  endorsed  with  the  form of  Subscription
Agreement  attached hereto duly filled in and signed and upon payment in cash or
cashier's  check of the aggregate  Stock Purchase Price for the number of shares
for which this Warrant is being  exercised  determined  in  accordance  with the
provisions  hereof.  The Stock Purchase Price and, in some cases,  the number of
shares purchasable  hereunder are subject to adjustment as provided in Section 3
of this  Warrant.  This  Warrant  and all  rights  hereunder,  to the extent not
exercised  in the manner set forth herein  shall  terminate  and become null and
void on the Expiration Date.  "Expiration  Date" means 5:00 P.M. (New York Time)
on the fifth anniversary of the


                                      - 1 -







Commencement  Date.  In the event that the Holder does not exercise this Warrant
pursuant  to the terms of this  Warrant,  then this  Warrant  shall  expire,  be
cancelled,  and be null  and  void.  This  Warrant  is  issued  pursuant  to the
subscription  agreement  dated the same date as this Warrant and executed by the
Holder,  for  the  Purchase  of a  secured  convertible  promissory  note in the
principal amount of $___________.

This Warrant is subject to the Following terms and conditions:

1.     Exercise: Issuance of Certificates; Payment for Shares; Conversion Right.

         1.1 Duration of Exercise of Warrant. This Warrant is exercisable at the
option of the  Holder at any time or from time to time but not  earlier  than on
the Commencement  Date or later than 5:00 P.M. (New York Time) on the Expiration
Date  for all or a  portion  of the  shares  of  Stock  which  may be  purchased
hereunder.  The  Company  agrees that the shares of Stock  purchased  under this
Warrant  shall be and are deemed to be issued to Holder as the  record  owner of
such  shares at the close of business  on the date on which this  Warrant  shall
have  been  surrendered  and  payment  made  for  such  shares.  Subject  to the
provisions  of Section  2,  certificates  for the shares of Stock so  purchased,
together with any other  securities or property to which Holder is entitled upon
such exercise, shall be delivered to Holder by the Company or its transfer agent
at the Company's  expense within a reasonable time after the rights  represented
by this Warrant have been exercised.  Each stock  certificate so delivered shall
be in such  denominations  of Stock as may be  requested  by Holder and shall be
registered  in the name of Holder or such other name as shall be  designated  by
Holder. If, upon exercise of this Warrant, fewer than all of the shares of Stock
evidenced by this Warrant are  purchased  prior to the  Expiration  Date of this
Warrant, one or more new warrants substantially in the form of, and on the terms
in, this Warrant will be issued for the remaining  number of shares of Stock not
purchased upon exercise of this Warrant.

2. Shares to Be Fully Paid:  Reservation  of Shares.  The Company  covenants and
agrees that all shares of Stock  which may be issued  upon the  exercise of this
Warrant (the "Warrant Shares") shall, upon issuance, be duly authorized, validly
issued,  fully paid and nonassessable and free from all preemptive rights of any
stockholder  and free of all  taxes,  liens,  and  charges  with  respect to the
issuance thereof. The Company believes it has sufficient shares both at the date
of this Warrant and following  the Private  Offering to provide for the exercise
of this  Warrant,  but shall take such action as may be required  following  the
Private  Offering  and the  redemption  of Stock for Mr. Gao to reserve and keep
available a sufficient number of shares of its authorized but unissued Stock for
such  exercise.  The  Company  will take all such  reasonable  actions as may be
necessary  to assure that such shares of Stock may be issued as provided  herein
without violation of any applicable law or regulation, or of any requirements of
any domestic  securities  exchange or automated  quotation system upon which the
Stock may be listed.


                                      - 2 -









3.  Adjustment of Stock Purchase Price and Number of Shares.  The Stock Purchase
Price and, in some cases, the number of shares  purchasable upon the exercise of
this  Warrant  shall  be  subject  to  adjustment  from  time to time  upon  the
occurrence of certain events described in this Section 3.

         3.1  Split or  Combination  of Stock and  Stock  Dividend:  In case the
Company  shall at any time  subdivide  its  outstanding  shares of Stock  into a
greater  number of shares or declare a dividend upon its Stock payable solely in
shares of Stock,  the Stock Purchase Price in effect  immediately  prior to such
subdivision or declaration  shall be proportionally  reduced,  and the number of
shares issuable upon exercise of the Warrant shall be proportionately increased.
Conversely,  in case the  outstanding  shares of Stock of the  Company  shall be
combined into a smaller number of shares (such as a reverse stock split, but not
to include the anticipated redemption of 20,000,000 shares of stock from Mr. Gao
pursuant  to a  Redemption  Agreement  now in  effect  with Mr.  Gao) the  Stock
Purchase  Price  in  effect  immediately  prior  to such  combination  shall  be
proportionately  increased,  and the number of shares  issuable upon exercise of
the Warrant shall be proportionately reduced.

         3.2 Dilutive  Issuances.  If prior to completion of the Company's  Next
Public  Offering,  the Company shall sell or issue at any time after the date of
this Warrant and prior to its  termination  shares of Stock (other than Excluded
Stock, as defined in Section 3.2.5) at a  consideration  per share less than the
Stock  Exercise Price in effect  immediately  prior to the time of such issue or
sale,  then,  upon such sale or  issuance,  the Stock  Purchase  Price  shall be
reduced to the lower of the prices  (calculated to the nearest cent)  determined
as follows:  by dividing  (i) the sum of (A) the total number of shares of Stock
Outstanding (as defined in Section 3.2.1) below and subject to adjustment in the
manner set forth in Section  3.1)  immediately  prior to such  issuance  or sale
multiplied by the then-existing  Stock Purchase Price, plus (B) the aggregate of
the amount of all  consideration,  if any,  received  by the  Company  upon such
issuance  or sale,  by (ii) the total  number  of  shares  of Stock  Outstanding
immediately after such issuance or sale.

                  3.2.1    Definitions.  For  purposes of this Section 3.2,  the
following definitions shall apply:

                           (a)      "Convertible   Securities"  shall  mean  any
indebtedness or equity securities convertible into or exchangeable for Stock.

                           (b)      "Options" shall mean any rights, warrants or
options to subscribe for or purchase Stock or Convertible Securities.

                           (c)      "Stock Outstanding: shall mean the aggregate
of all Stock of the Company  outstanding and all Stock issuable upon exercise of
all  outstanding   Options  and  conversion  of  all   outstanding   Convertible
Securities.

                                      - 3 -










                           (d)      "Market Price" shall mean:   (i) if there is
a ready public market of registered  stock, the Market Price shall be the "Stock
Price" (as defined in this Section 3.2.1)  obtained by taking the average over a
period of 30 days  consecutive  trading  days  ending on the second  trading day
prior to the date of determination; and (ii) if there is no ready public market,
Market price shall be the highest of the last bona fide sale made by the Company
and the fair market value of the Stock as  determined  by the Board of Directors
in its good faith judgment.

                           (e)      "Stock  Price"  shall  mean (i) the mean, on
each such trading day,  between the high and low sale price of a share of Stock,
or if no such sale takes place on any such  trading day, the mean of the highest
closing bid and lowest closing asked prices therefor on any such trading day, in
each case as officially reported on all national  securities  exchanges on which
the Stock is then listed or  admitted  to  trading,  or (ii) if the Stock is not
then listed or  admitted to trading on any  national  securities  exchange,  the
closing  price of the  Stock on such  date,  or  (iii)  if no  closing  price is
available on any such trading date, the mean between the highest closing bid and
the lowest  closing  asked  prices  thereof  on any such  trading  date,  in the
over-the-counter  market as reported by The National  Association  of Securities
Dealers  Automated  Quotation System, or (iv) if the Stock is not then quoted in
such system,  the mean between the highest  closing bid and lowest closing asked
prices  reported by market  makers and dealers for the Stock listed as such with
the  National   Quotation  Bureau,   Incorporated,   or  any  similar  successor
organization,  or (v) it there is no ready public  market,  then the Stock Price
shall be the Market Price.

                  3.2.2 For the  purposes of this  Section  3.2,  the  following
provisions shall also be applicable:

                           3.2.2.1  Cash  Consideration.  In  the  case  of  the
issuance or sale of additional Stock for cash, the consideration received by the
Company  therefor  shall be deemed  to be the  amount  of cash  received  by the
Company  for such  shares  (or,  if such  shares are  offered by the Company for
subscription,   the  subscription   price,  or,  if  such  shares  are  sold  to
underwriters or dealers for public offering without a subscription offering, the
public offering price), without deducting therefrom any compensation or discount
paid or allowed to underwriters or dealers or others performing similar services
or for any expenses incurred in connection therewith.

                           3.2.2.2   Non-Cash Consideration.   In  case  of  the
issuance (other than upon  conversion or exchange of Convertible  Securities) or
sale of additional Stock, Options or Convertible  Securities for a consideration
other than cash or a consideration a part of which shall be other than cash, the
fair market value of such  consideration as determined by the Board of Directors
of the Company in the good faith exercise of its business judgment, irrespective
of the  accounting  treatment  thereof,  shall be  deemed to be the  value,  for
purposes of this Section 3, of the consideration other than cash received by the
Company for such securities.

                                      - 4 -











                           3.2.2.3   Options and Convertible Securities. In case
the Company  shall in any manner  issue or grant any Options or any  Convertible
Securities,  the total  maximum  number of  shares  of Stock  issuable  upon the
exercise of such  Options or upon  conversion  or exchange of the total  maximum
amount of such Convertible  Securities at the time such  Convertible  Securities
first become convertible or exchangeable shall (as of the date of issue or grant
of such Options or, in the case of the issue or sale of  Convertible  Securities
other than where the same are issuable  upon the exercise of Options,  as of the
date of such issue or sale) be deemed to be issued and to be outstanding for the
purpose of this  Section  3.2 and to have been  issued for the sum of the amount
(if any) paid for such  Options or  Convertible  Securities  plus the amount (if
any) payable upon the exercise of such Options or upon conversion or exchange of
such Convertible Securities at the time such Convertible Securities first become
convertible or exchangeable; provided that, subject to the provisions of Section
3.2.3, no further  adjustment of the Stock Purchase Price shall be made upon the
actual  issuance  of any  such  Stock  or  Convertible  Securities  or upon  the
conversion or exchange of any such Convertible Securities.

                  3.2.3 Change in Option Price or Conversion.  In the event that
the purchase price provided for in any Option referred to in subsection 3.2.2.3,
or the  rate at which  any  Convertible  Securities  referred  to in  subsection
3.2.2.3 are convertible into or exchangeable for shares of Stock shall change at
any time or any additional consideration shall be payable in connection with the
exercise of any Option or the conversion or exchange of any Convertible Security
(other  than  under or by reason  of  provisions  designed  to  protect  against
dilution upon the occurrence of events of the type described in this Section 3),
then, for purposes of any adjustment required by Section 3.2, the Stock Purchase
Price in effect at the time of such event shall  forthwith be  readjusted to the
Stock  Purchase  Price  that  would  have  been in  effect at such time had such
Options or Convertible  Securities still  outstanding  provided for such changed
purchase price, conversion rate or additional consideration, as the case may be,
at  the  time  initially  granted,   issued  or  sold,  provided  that  if  such
readjustment is an increase in the Stock Purchase Price, such readjustment shall
not exceed the amount (as  adjusted by Sections  3.2 and 3.2) by which the Stock
Purchase  Price was  decreased  pursuant to Section 3.2 upon the issuance of the
Option or Convertible Security.

                  3.2.4 Termination of Option or Conversion Rights. In the event
of the termination or expiration of any right to purchase Stock under any Option
granted  after the date of this  Warrant or of any right to convert or  exchange
Convertible Securities issued after the date of this Warrant, the Stock Purchase
Price shall, upon such termination, be readjusted after the Stock Purchase Price
that would have been in effect at the time of such expiration or termination had
such Option or Convertible Security, to the extent outstanding immediately prior
to such expiration or termination, never been issued, and the shares of

                                      - 5 -









Stock issuable  thereunder  shall not longer be deemed to be Stock  Outstanding,
provided that if such  readjustment  is an increase in the Stock Purchase Price,
such  readjustment  shall not exceed the amount (as adjusted by Sections 3.1 and
3.2) by which the Stock  Purchase  Price was  decreased  pursuant to Section 3.2
upon the issuance of the Option or  Convertible  Security.  The  termination  or
expiration of any right to purchase  Stock under any Option granted prior to the
date  of this  Warrant  or of any  right  to  convert  or  exchange  Convertible
Securities  issued  prior to the date of this  Warrant  shall  not  trigger  any
adjustment to the Stock Purchase  Price,  but the shares of Stock issuable under
such  Options  or  Convertible   Securities  shall  not  longer  be  counted  in
determining the number of shares of Stock Outstanding on the date of issuance of
this Warrant for purposes of subsequent calculations under this Section 3.2

                  3.2.5 Excluded Stock.  Notwithstanding  anything herein to the
contrary,  the Stock  Purchase  Price  shall not be  adjusted  pursuant  to this
Section 3.2 by virtue of the issuance and/or sale of Excluded Stock, which shall
mean the following: (a) Stock, Options or Convertible Securities representing up
to  2,000,000  shares  of Stock  (or such  greater  number of shares of Stock as
authorized  by the Board of Directors) in the aggregate to be issued and/or sold
to employees, advisors, directors or officers of, or consultants to, the Company
or any of its  subsidiaries  pursuant  to a  stock  grant,  stock  option  plan,
restricted stock agreements, stock purchase plan, pension or profit sharing plan
or other stock  agreement  or  arrangement  approved by the  Company's  Board of
Directors,  (b) the  issuance  of shares of Stock,  Options  and/or  Convertible
Securities pursuant to Options and/or Convertible  Securities  outstanding as of
the date of this  Warrant;  (c) issuance of shares of Stock  and/or  Convertible
Securities to the Placement Agent in respect of the  transaction  represented by
the subscription  agreement related to the issuance of this Warrant; and (d) the
issuance  of shares of  Stock,  Options  or  Convertible  Securities  as a stock
dividend  or upon any split or  combination  of  shares of Stock or  Convertible
Securities.  For all purposes of this Section 3.2, all shares of Excluded  Stock
shall be deemed to have been  issued  for an amount of  consideration  per share
equal to the initial Stock  Purchase  Price (subject to adjustment in the manner
set forth in Section 3.1).

         3.3  Notice  of  Adjustment.  Promptly  after  adjustment  of the Stock
Purchase  Price or any increase or decrease in the number of shares  purchasable
upon the  exercise  of this  Warrant,  the  Company  shall give  written  notice
thereof,  by  first-class  mail,  postage  prepaid,  addressed to the registered
Holder of this  Warrant at the  address of such  Holder as shown on the books of
the  Company.  The notice  shall be signed by the  Company's  President or Chief
Executive  Officer and shall state the effective  date of the adjustment and the
Stock  Purchase  Price  resulting  from  such  adjustment  and the  increase  or
decrease,  if any,  in the number of shares  purchasable  at such price upon the
exercise  of this  Warrant,  setting  forth in  reasonable  detail the method of
calculation and the facts upon which such calculation is based.

         3.4      Notices.  If at any time:

                                      - 6 -










(a)      the Company shall declare any cash dividend upon its Stock;

(b) the Company  shall  declare  any  dividend  upon its Stock  payable in stock
(other  than a dividend  payable  solely in shares of Stock) or make any special
dividend or other distribution to the Holder of its Stock;

(c)      there  shall be any consolidation or merger of the Company with another
corporation,  or a sale of all or  substantially  all of the Company's assets to
another corporation; or

(d)      there shall be a voluntary or involuntary  dissolution,  liquidation or
winding-up of the Company

then, in any one or more of said cases,  the Company shall give, by certified or
registered  mail,  postage prepaid,  addressed to the registered  Holder of this
Warrant at the address of such Holder as shown on the books of the Company,  (i)
at least 30 days  prior  written  notice  of the date on which  the books of the
Company shall close or a record shall be taken for such  dividend,  distribution
or subscription  rights or for determining rights to vote in respect of any such
dissolution,  liquidation  or  winding-up;  (ii) at least 10 days prior  written
notice  of the date on which the books of the  Company  shall  close or a record
shall  be  taken  for  determining  rights  to  vote  in  respect  of  any  such
reorganization,  reclassification,  consolidation,  merger or sale, and (iii) in
the case of any such reorganization,  reclassification,  consolidation,  merger,
sale, dissolution, liquidation or winding-up, at least 30 days written notice of
the date when the same shall take place.  Any notice  given in  accordance  with
clause  (i)  above  shall  also  specify,  in the  case  of any  such  dividend,
distribution  or option  rights,  the date on which the Holder of Stock shall be
entitled  thereto.  Any notice given in accordance with clause (iii) above shall
also  specify  the date on which the  Holder(s)  of Stock  shall be  entitled to
exchange  their Stock for  securities or other  property  deliverable  upon such
reorganization,  reclassification,  consolidation,  merger,  sale,  dissolution,
liquidation or winding-up, as the case may be. If the Holder of the Warrant does
not exercise this Warrant prior to the occurrence of an event  described  above,
except as provided in Sections  3.1 and 3.5, the Holder shall not be entitled to
receive the  benefits  accruing to existing  holders of the Stock in such event.
Notwithstanding anything herein to the contrary, if and to the extent the Holder
chooses to exercise this Warrant within the 10- day period following  receipt of
the  notice  specified  in clause  (ii)  above,  the Holder may elect to pay the
aggregate  Stock Purchase Price by delivering to the Company cash or a cashier's
check in the  amount of the  aggregate  par  value of the  shares of Stock to be
purchased and the Holder's full  recourse  Promissory  Note in the amount of the
balance of the aggregate  Stock Purchase  Price,  which Note shall be payable to
the order of the Company in a single sum on the 30th day  following  the date of
receipt of such notice and shall bear interest at the lowest applicable  federal
short-term rate (using monthly  compounding) as established  pursuant to Section
1274(d) of the  Internal  Revenue  Code of 1986,  as amended,  or any  successor
provision;  provided,  however,  that  if  the  Holder  elects to deliver such a

                                      - 7 -









Promissory Note to the Company,  the Holder will pledge to the Company all Stock
issued in connection  with the exercise of this  Warrant,  and the Company shall
retain possession of the certificates  evidencing such Stock, until such time as
the Note is paid in full.

         3.5 Changes in Stock.  In case at any time  following the  Commencement
Date hereof, the Company shall be a party to any transaction (including, without
limitation,  a merger,  consolidation,  sale of all or substantially  all of the
Company's  assets or  recapitalization  of the  Stock)  in which the  previously
outstanding Stock shall be changed into or exchanged for different securities of
the  Company  or common  stock or other  securities  of another  corporation  or
interests in a  noncorporate  entity or other property  (including  cash) or any
combination of any of the foregoing (each such  transaction  being herein called
the  "Transaction"  and the date of consummation of the Transaction being herein
called the "Consummation  Date"), then as a condition of the consummation of the
Transaction,  lawful and adequate  provisions shall be made so that each Holder,
upon the exercise hereof on or before the  Consummation  Date, shall be entitled
to receive, and this Warrant shall thereafter represent the right to receive, in
lieu of the Stock  issuable upon such exercise prior to the  Consummation  Date,
the highest  amount of securities  or other  property to which such Holder would
actually  have been  entitled  as a  stockholder  upon the  consummation  of the
Transaction if such Holder had exercised such Warrant immediately prior thereto.
The  provisions  of  this  Section  3.5  shall  similarly  apply  to  successive
Transactions.

         3.6      Termination of Dilutive Protection.  Immediately following the
Next Public Offering all antidilution  provisions of this Section 3 shall become
null, void and of no further force or effect.

4. Issue Tax. The issuance of certificates for shares of Stock upon the exercise
of the Warrant shall be made without charge to the Holder of the Warrant for any
issue tax in respect thereof,  provided,  however, that the Company shall not be
required to pay any tax which may be payable in respect of any transfer involved
in the issuance and  delivery of any  certificates  in a name other than that of
the then Holder of the Warrant being exercised.

5. No Voting or Dividend Rights;  Limitation of Liability.  Nothing contained in
this Warrant shall be construed as  conferring  upon the Holder hereof the right
to vote or to  consent  or to  receive  notice as a  stockholder  in  respect of
meetings of  stockholders  for the  election of  directors of the Company or any
other matters or any rights  whatsoever as a stockholder of the Company.  Except
for the  adjustment to the Stock  Purchase  Price pursuant to Section 3.1 in the
event of a dividend on the Stock  payable in shares of Stock,  no  dividends  or
interest  shall be payable or accrued in respect of this Warrant or the interest
represented  hereby or the shares  purchasable  hereunder until, and only to the
extent that, this Warrant shall have been exercised.  No provisions  hereof,  in
the absence of affirmative action by the Holder to purchase shares of Stock, and
no mere  enumeration  herein of the rights or privileges  of the Holder  hereof,
shall give rise to any liability of such Holder for

                                      - 8 -









the  Stock  Purchase  Price or as a  stockholder  of the  Company  whether  such
liability is asserted by the Company or by its creditors.

6.       Restrictions  on  Transferability  of  Securities;     Compliance  with
Securities Act.

         6.1  Restrictions  on  Transferability.  This  Warrant  and the Warrant
Shares  (the  "Securities")   shall  not  be  transferable  in  the  absence  of
Registration  under the Act (as defined below) or an exemption  therefrom  under
said Act.

         6.2 Restrictive Legend. Each certificate representing the Securities or
any other  securities  issued in respect of the Securities upon any stock split,
stock dividend, recapitalization,  merger, consolidation or similar event, shall
be stamped or otherwise  imprinted with a legend  substantially in the following
form (in  addition to any legend  required  under  applicable  state  securities
laws):

    THE SECURITIES  REPRESENTED  HEREBY HAVE NOT BEEN REGISTERED  UNDER THE
    SECURITIES ACT OF 1933, AS AMENDED,  OR ANY STATE  SECURITIES  LAWS AND
    NEITHER THE SECURITIES NOR ANY INTEREST  THEREIN MAY BE OFFERED,  SOLD,
    TRANSFERRED,  PLEDGED OR  OTHERWISE  DISPOSED OF EXCEPT  PURSUANT TO AN
    EFFECTIVE  REGISTRATION  STATEMENT  UNDER  SUCH ACT OR SUCH  LAWS OR AN
    EXEMPTION FROM REGISTRATION  UNDER SUCH ACT AND SUCH LAWS WHICH, IN THE
    OPINION OF COUNSEL  FOR THE  HOLDER,  WHICH  COUNSEL  AND  OPINION  ARE
    REASONABLY SATISFACTORY TO COUNSEL FOR THIS COMPANY, IS AVAILABLE.

7.       Registration Rights.  The  Common  Stock  underlying  this  Warrant  is
subject to a Registration  Rights Agreement  entered into by Holder of even date
herewith and which is  incorporated  herein by reference and attached  hereto as
Exhibit A.

8.       Modification and Waiver.   This Warrant and any provision hereof may be
changed,  waived,  discharged  or  terminated  only by an  instrument in writing
signed by the party against which enforcement of the same is sought,

9. Notices.  Any notice,  request or other document  required or permitted to be
given or  delivered  to the Holder  hereof or the Company  shall be delivered or
shall be sent by certified or registered  mail,  postage  prepaid,  to each such
Holder at its  address as shown on the books of the Company or to the Company at
the address indicated therefor in the first paragraph of this Warrant.

10.      Description Headings and Governing Law. The descriptive headings of the
several  sections and  paragraphs  of this Warrant are inserted for  convenience
only  and do not  constitute  a part of this  Warrant.  This  Warrant  shall  be
construed and enforced in accordance  with,  and the rights of the parties shall
be governed by, the internal laws of the State of Maryland.

                                      - 9 -











11. Lost Warrants or Stock Certificates.  The Company represents and warrants to
Holder the upon receipt of evidence  reasonably  satisfactory  to the Company of
the loss,  theft,  destruction or mutilation of any Warrant or stock certificate
and, in the case of any such loss, theft or destruction,  and if requested, upon
receipt of an indemnity bond reasonably  satisfactory to the Company,  or in the
case of any such mutilation,  upon surrender and cancellation of such Warrant or
stock  certificate,  the  Company  at its  expense  will make and  deliver a new
Warrant  or stock  certificate,  of like  tenor,  in lieu of the  lost,  stolen,
destroyed or mutilated Warrant or stock certificate.

12.  Fractional  Shares.  No fractional  shares shall be issued upon exercise of
this Warrant. The Company shall, in lieu of issuing any fractional share pay the
Holder entitled to such fraction a sum in cash equal to the fair market value of
any such  fractional  interest as it shall  appear on the public  market,  or if
there  is no  public  market  for  such  shares,  then as  shall  be  reasonably
determined by the Company.

IN WITNESS  WHEREOF,  the Company has caused this  Warrant to be executed by its
officer, thereunto duly authorized as of this ____ day of July, 1996.

         CHEUNG LABORATORIES, INC.



By:      ___________________________
         Signature

By:      ___________________________
         Print Name

Title:   ___________________________

                                     - 10 -









                         FORM OF SUBSCRIPTION AGREEMENT

              (To be signed and delivered upon exercise of Warrant)

[DATE]

Attention:  _______________
Cheung Laboratories, Inc.
10220-I Old Columbia Road
Columbia, Maryland  21046-1705

Dear __________:

         The undersigned,  the Holder of the within Warrant,  hereby irrevocably
elects to exercise the purchase  rights  represented by such Warrant for, and to
purchase  thereunder,  _______ shares of Common Stock, par value $0.01 per share
(the "Common Stock") of Cheung Laboratories, Inc. (the "Company") and subject to
the  following  paragraph,  herewith  makes payment of  _______________  Dollars
($________)  therefor  and  requests  that the  certificates  for such shares be
issued in the name of, and delivered to, _________________________________ whose
address is

                                                        .

         If the  shares  issuable  upon the  exercise  of this  Warrant  are not
covered by a registration  statement effective under the Securities Act of 1933,
as amended,  (the "Securities  Act"), the undersigned  represents as of the date
hereof that:

                  (i)  the  undersigned  is  acquiring  such  Common  Stock  for
investment for his own account,  not as nominee or agent, and not with a view to
the  distribution  thereof  and the  undersigned  has not  signed  or  otherwise
arranged  for  the  selling,   granting  any   participation  in,  or  otherwise
distributing the same,

                  (ii) the  undersigned  has such  knowledge  and  experience in
financial  and business  matters as to be capable of  evaluating  the merits and
risks of the undersigned's investment in the Common Stock,

                  (iii) the  undersigned has received all of the information the
undersigned   has  requested  from  the  Company  and  considers   necessary  or
appropriate for deciding whether to purchase the shares of Common Stock,

                  (iv) the undersigned has the ability to bear the economic risk
of his prospective investment,

                                      - 1 -










                  (v) the undersigned is able, without materially  impairing his
financial condition, to hold the shares of Common Stock for an indefinite period
of time and to suffer complete loss on his investment,

                  (vi) the undersigned understands and agrees that (A) he may be
unable to readily  liquidate  his  investment  in the shares of Common Stock and
that  the  shares  must be held  indefinitely  unless a  subsequent  disposition
thereof is registered or qualified under the Securities Act and applicable state
securities   or  Blue  Sky  laws  or  is  exempt  from  such   registration   or
qualification,  and that the Company is not  required to register the same or to
take any  action  or make  such an  exemption  available  except  to the  extent
provided in the within Warrant,  and (B) the exemption from  registration  under
the  Securities  Act  afforded by Rule 144  promulgated  by the  Securities  and
Exchange  Commission  ("Rule  144")  depends  upon the  satisfaction  of various
conditions by the undersigned and the Company and that, if applicable,  Rule 144
affords the basis for sales under certain  circumstances in limited amounts, and
that if such exemption is utilized by the  undersigned,  such conditions must be
fully complied with by the undersigned and the Company, as required by Rule 144,

                  (vii) the  undersigned  is (A) familiar with the definition of
and the undersigned is an "accredited  investor" within the meaning of such term
under Rule 501 of Regulation D promulgated  under the Securities  Act, or (B) is
providing  representations and warranties reasonably satisfactory to the Company
and its  counsel,  to the effect that the sale and issuance of Common Stock upon
exercise of such Warrant may be made without  registration  under the Securities
Act or any applicable state securities and Blue Sky laws, and

                  (viii) the  address  set  forth  below is the true and correct
address of the undersigned's residence.

Dated:  ________________


________________________
Signature

Signature must conform in all respects to the name of Holder as specified on the
face of the Warrant)


Address:  _______________________

          _______________________

          _______________________                                 

                                      - 2 -







Exhibit 10.18
                                                            Serial Number [0300]

                  Void after 5:00 p.m.,  Chicago  Time,  on May 31, 2001 (unless
extended as provided below)

                                                                               
                                                    Warrant to Purchase certain
                                                    Shares of Common Stock,
                                                    dated June 1, 1996.


                                 CERTIFICATE OF
                        WARRANT TO PURCHASE COMMON STOCK
                                       OF
                            CHEUNG LABORATORIES, INC.

This Is To Certify  That,  FOR CASH AND OTHER VALUE  RECEIVED,  NACE  RESOURCES,
INC., a Delaware corporation  ("NACE"),  its nominees,  or assigns (hereinafter,
the  "Holder(s)")  are entitled to purchase,  subject to the  provisions of this
Warrant (its  successors,  divisions or  additions),  from Cheung  Laboratories,
Inc., a corporation  duly organized,  in good standing within its domicile,  and
whose offices as of the date hereof are at 10220-1 Old Columbia Road,  Columbia,
MD 21046 (hereinafter, the "Company"),  restricted and legended shares of common
stock of the  Company  ("Common  Stock") at a purchase  price equal to Forty One
Cents  ($00.41 U.S.) per share in such amounts and at such times as are provided
herein.

The number of shares of Common  Stock to be received  upon the  exercise of this
Warrant  and the  price to be paid for a share of Common  Stock may be  adjusted
from time to time as hereinafter set forth.

Supplementing, notwithstanding, and in support of the foregoing, the Company and
the original Holder hereof  ("Nace"),  intend that the number of shares issuable
hereunder  shall  be  396,719,   which  represents  1.875%  of  the  issued  and
outstanding Common Stock. In the event the Company fails to redeem an additional
4,000,000 shares of the Common Stock from Gao Yu Wen on or before June 30, 1997,
the original  Holder hereof shall be entitled to a warrant on identical terms to
purchase an additional 75,000 shares.

The shares of Common Stock deliverable upon such exercise,  and as adjusted from
time to time, are  hereinafter  referred to as "Warrant  Stock" and the exercise
price for a share of Common  Stock in  effect at any time and as  adjusted  from
time to time is hereinafter sometimes referred to as the "Exercise Price".


                                      - 1 -









The term "Warrant" used above and throughout  this  Certificate  shall mean this
Warrant or successor  Warrants issued in exchange for it for any reason pursuant
to the terms and condition contained herein.

         (i) Exercise of Warrant.  Subject to the provisions of paragraphs 6 and
7 hereof,  this Warrant may be exercised in whole or in part at any time or from
time to time on or after  June 1, 1996 but not later  than  5:00  p.m.,  Chicago
Time,  on June  1,  2001 or if June  1,  2001  is a day on  which  U.S.  banking
institutions  are  authorized by law to close,  then on the next  succeeding day
which  shall not be such a day,  by  presentation  and  surrender  hereof to the
Company or at the office of its stock transfer agent, if any, with a copy of the
Purchase Form attached  hereto duly executed and  accompanied  by payment of the
Exercise  Price for the number of shares  specified in such form,  together with
all federal and state  taxes  applicable  upon such  exercise,  if any,  and the
Company shall  promptly issue and deliver stock  certificates  for the number of
shares purchased to the Holder hereof within two (2) business days in conformity
with  industry  practice.  The Company may  unilaterally  extend the time within
which this Warrant may be exercised but is not obligated to do so.

If this  Warrant  should be  exercised  in part  only or all or a portion  of it
renewed as provided for in paragraph 7 hereof or otherwise,  the Company  shall,
upon  surrender  of this  Warrant  for  cancellation,  execute and deliver a new
Warrant,  containing  terms and  conditions  identical to this Warrant except as
provided  for herein,  evidencing  the right of the  Holder(s)  to purchase  the
balance of the shares purchasable hereunder.

Upon receipt of this Warrant,  the executed Purchase Form and the Exercise Price
by the  Company  or,  if then  applicable,  by its  stock  transfer  agent,  the
Holder(s)  shall be deemed to be the holder(s) of record of the shares of Common
Stock issuable upon such exercise, notwithstanding that the stock transfer books
of the  Company  shall  then be closed or that  certificates  representing  such
shares of Common Stock shall not then be actually  delivered  to the  Holder(s),
their  agents or  designees.  The  Company  shall keep  detailed  records of the
disposition of this,  successor  Warrants,  and any Warrant issuable  hereunder,
each bearing a serial number, and shall make such records available to Holder(s)
or their agents upon request.

         (ii) Reservation of Shares.  The Company hereby represents and warrants
that at all times subsequent  hereto there shall be reserved for issuance and/or
delivery upon exercise of this Warrant such number of shares of its Common Stock
as shall be required for issuance or delivery  upon  exercise of this Warrant or
any Warrant issuable hereunder.

         (iii)    Fractional Shares.  No fractional shares or scrip representing
fractional shares shall be issued upon exercise of this Warrant. With respect to
any fraction of a share called for upon any exercises hereof,  the Company shall
pay to the Holder(s) an amount in cash

                                      - 2 -









equal to such fraction multiplied by the current market value of such fractional
share, determined as follows:

                  (a) If the  Common  Stock is listed on a  national  securities
exchange or  admitted  to unlisted  trading  privileges  on such  exchange,  the
current  value shall be the last reported sale price of the Common Stock on such
exchange on the last  business day prior to the date of exercise of this Warrant
or if no such sale is made on such day on such exchange; or

                  (b) If the  Common  Stock  is not so  listed  or  admitted  to
unlisted  trading  privileges,  the current  value shall be the mean of the last
reported bid and asked prices reported by the National Association of Securities
Dealers  Automated  Quotation  System  (or,  if not so quoted on NASDQ),  by the
National  Quotation  Bureau,  Inc.) on the last business day prior to the day of
the exercise of this Warrant; or

                  (c) If the  Common  Stock  is not so  listed  or  admitted  to
unlisted  trading  privileges and bid and asked prices are not so reported,  the
current  fair market  value shall be an amount,  not less than book value or the
last known price paid by a  purchaser  for said Common  Stock,  determined  in a
reasonable manner as may be prescribed by the Board of Directors of the Company.

         (iv)  Exchange,  Assignment  or Loss of Warrant.  Subject to applicable
securities laws and the terms of the legend set forth in paragraph 11(b) hereof,
this Warrant  certificate is fully exchangeable and (by definition)  assignable,
without expense, at the option of the Holder(s), upon presentation and surrender
hereof to the Company or at the office of its stock transfer  agent, if any, for
other Warrant  certificates of different  denominations  entitling the Holder(s)
hereof to purchase in the  aggregate  the same number of shares of Common  Stock
purchasable hereunder.

Any assignment  hereof shall be made by surrender of this Warrant to the Company
or at the office of its stock transfer agent,  if any, with a written,  executed
assignment,  instructions  and funds  sufficient  to pay  transfer tax (if any);
whereupon the Company shall,  without charge,  execute and deliver a new Warrant
certificate  in  the  name  of the  assignee(s)  named  in  such  instrument  of
assignment  and this  Warrant  certificate  shall  promptly be  cancelled.  This
Warrant may be divided upon presentation  hereof at the office of the Company or
at the  office of its stock  transfer  agent,  if any,  together  with a written
notice,  specifying the names and  denominations in which new Warrants are to be
issued,  and signed by the Holder hereof.  The terms "Warrant" and "Warrants" as
used herein include any Warrants  issued in  substitution  for or replacement of
this Warrant, or into which this Warrant may be divided or exchanged.


                                      - 3 -









Upon  receipt by the Company of evidence  reasonably  satisfactory  to it of the
loss,  theft,  destruction  or mutilation  of this Warrant,  and, in the case of
loss, theft or destruction, of reasonably satisfactory indemnification, and upon
surrender  and  cancellation  of this Warrant,  if  mutilated,  the Company will
execute and deliver a new Warrant of like tenure and date.  Any such new Warrant
executed and delivered shall constitute an additional  contractual obligation on
the part of the Company,  whether or not this Warrant so lost, stolen, destroyed
or mutilated shall be at any time enforceable by anyone.  Nevertheless,  neither
the  Company or the  Holder(s)  anticipate  that this  Warrant or any  successor
Warrant shall itself be registered  (rather that the underlying  shares shall be
registered),  the Company shall not impose unreasonable burdens on the Holder(s)
with respect to indemnification if same becomes necessary.

         (v) Rights of the Holders.  The Holder(s)  shall not, by virtue hereof,
be  entitled to any rights of a  shareholder  in the  Company,  either at law or
equity,  and the rights of the Holder(s)  are limited to those  expressed in the
Warrant and are not  enforceable  against  the Company  except to the extent set
forth herein,  PROVIDED  HOWEVER,  that the Company  shall,  in a timely manner,
provide  Holder(s)  with a copy of each and  every  press  release,  mailing  to
shareholders  and  periodic  filing  with  the  U.S.   Securities  and  Exchange
Commission  made by the Company,  and provided that the Company shall be, at all
times during the tenure of this Warrant or its  successors,  in compliance  with
all of its contractual obligations to Riker and its affiliates.

         (vi)     Adjustments to Exercise Price and Number of Shares.

                  (a) The  Company  shall not be  required to give effect to any
adjustment in the Exercise  Price unless and until the net effect of one or more
adjustments,  determined as above provided,  shall have required a change of the
Exercise  Price by at least one cent,  ($00.01 U.S.) but when the cumulative net
effect of more than one  adjustment so determined  shall be to change the actual
Exercise  Price by at least one cent,  such change in the  Exercise  Price shall
thereupon be given effect.

Notwithstanding  anything else in this  paragraph  which might be interpreted to
the contrary,  should at any time subsequent to the issuance of this Warrant but
during the tenure of this Warrant and any renewals or extensions as are provided
for  herein,  any  person  or  entity  shall be  issued  an  option  or  warrant
exercisable  to purchase stock of the Company or stock of the Company is sold to
such person or entity at a price per share less than the then relevant  Exercise
Price as determined as provided herein, an immediate  adjustment in the Exercise
Price for this Warrant (and  successor  Warrants to this Warrant) shall be made.
The effect of this  adjustment  shall be to make the  Exercise  Price under this
Warrant equal to the lesser  exercise,  option or sale price  referenced  above.
However,  this adjustment  shall not have the effect of increasing the number of
shares purchasable hereunder.  Rather it shall reduce the aggregate amount paid,
assuming full exercise of this Warrant, to an amount equal to the

                                      - 4 -









number of shares  otherwise then purchasable  hereunder  multiplied by the newly
adjusted Exercise Price pursuant to this adjustment.

                  (b) The 396,719 shares issuable hereunder shall be adjusted so
that  number of shares  issuable  hereunder  shall be equal,  at all times after
issuance of this Warrant,  to 1.875% of the total issued and outstanding  Common
Stock of the Company  until the Company  completes  its next public  offering of
securities.

                  (c)  Whenever  reference  is made in this  paragraph  6 to the
issue or sale of shares of Common Stock,  the term "Common Stock" shall mean the
Common  Stock of the Company of the class  authorized  as of the date hereof and
any other  classes of stock  ranking on a parity with or  convertible  into such
Common  Stock  providing,  as is  contemplated,  it is the  Common  Stock of the
Company  which  is to be  offered  and  sold  at the  next  public  offering  of
registered  Common Shares of the Company.  However,  as of the date of grant and
sale of this  Warrant  and subject to the  provisions  of  paragraph  10 hereof,
shares  issuable  upon  exercise  hereof shall  include only shares of the class
designated as Common Stock of the Company as of the date hereof.

         (vii) Renewal of Exercise Rights. If, while this Warrant or any portion
of it remains in effect,  Holder(s)  wish to extend their rights to exercise all
or a portion of this Warrant which would  otherwise  expire and be lost to them,
they may do so by paying to the Company, a sum equal to five percent (5%) of the
then  relevant  Exercise  Price  pertaining to that portion of the Warrant which
would  otherwise  expire (the  "Renewal  Fee") and the Company shall extend that
portion of the Warrant  for a further  period of five (5) years from the date of
receipt of the Renewal Fee but, in no case,  beyond 5:00 p.m.,  Chicago Time, on
June 1, 2006, and shall issue a new Warrant,  identical in every respect to this
Warrant,  except that such new  Warrant  shall  reflect the fact that  Holder(s)
shall have an  additional  five (5) years to exercise  their  rights to purchase
that portion of the Warrant  Stock for which they have paid a Renewal Fee.  This
provision extends to this Warrant and all successor Warrants issuable hereunder.

This  provision is included  partially to permit  Holder(s) to coordinate  their
exercise of this  Warrant and sale of Warrant  Stock so as to minimize the Costs
and  Expenses  and  time of the  Company's  management  in  complying  with  the
provisions  of this  Warrant.  Payment of the  Renewal  Fee will  confirm no new
rights  upon the  Holder(s)  except to extend and renew the time  period  during
which Holder(s) may exercise existing rights under this Warrant.

         (viii)  Officer's  Certificate.  Whenever the  Exercise  Price shall be
adjusted as required by the provisions of paragraph 6 hereof,  the Company shall
forthwith file in the custody of its Secretary or an Assistant  Secretary at its
principal  office,  and with its stock  transfer  agent,  if any,  an  officer's
certificate  showing the adjusted  Exercise Price  determined as herein provided
and setting forth in reasonable detail the facts requiring such adjustment.

                                      - 5 -









Each such officer's  certificate shall be made available at all reasonable times
for inspection by the Holder(s) and the Company shall, forthwith after each such
adjustment,  deliver a copy of such  certificate  to the  Holder(s)  and each of
them.  Unless  disputed in writing by the Holder hereof within thirty (30) days,
such certificate shall be conclusive as to the correctness of such adjustment.

         (ix) General Notices to Warrant Holders. So long as any portion of this
Warrant (or any successor  Warrant) shall be outstanding  and unexercised (a) if
the  Company  shall pay any  dividend or make any  distribution  upon the Common
Stock or (b) if the  Company  shall  offer to the  holders  of Common  Stock for
subscription  or  purchase by them any shares of stock of any class or any other
rights or (c) if any capital reorganization of the Company,  reclassification of
the capital stock of the Company, consolidation or merger of the Company with or
into another corporation, sale, lease or transfer of all or substantially all of
the  property  and assets of the  Company to  another  corporation  or engage in
voluntary or involuntary dissolution,  liquidation or winding up of the company,
then the Company shall cause to be delivered to the  Holder(s),  at least thirty
(30) days prior to the relevant date, a notice containing a brief description of
the  proposed  action and  stating the date of which a record is to be taken for
the purpose of such dividend,  distribution of rights, or such reclassification,
reorganization,   consolidation,   merger,   conveyance,   lease,   dissolution,
liquidation  or winding up is to take place and the date, if any, is to be fixed
as of which the holders of Common  Stock of record shall be entitled to exchange
their  shares  of  Common  Stock of  record  for  securities  or other  property
deliverable upon such reclassification,  reorganization,  consolidation, merger,
conveyance, dissolution, liquidation or winding up.

         (x)  Reclassification,   Reorganization  or  Merger.  In  case  of  any
reclassification,  capital  reorganization or other change of outstanding shares
of Common  Stock of the Company  (other than a change in par value,  or from par
value to no par  value,  or from no par value to par value) or as a result of an
issuance  of  Common  Stock by way of  dividend  or other  distribution  or of a
subdivision or  combination,  or in case of any  consolidation  or merger of the
Company with or into another  corporation (other than a merger with a subsidiary
in which  merger the Company is the  continuing  corporation  and which does not
result  in any  reclassification,  capital  reorganization  or other  change  of
outstanding  shares of Common Stock of the class  issuable upon exercise of this
Warrant)  or in case of any sale or  conveyance  to another  corporation  of the
property  of  the  Company  as an  entirety  or  substantially  as  an  entirety
(collectively,  a "Triggering  Event"), the Company shall use good faith efforts
to cause  effective  provision to be made so that the  Holder(s)  shall have the
right  thereafter  (and  shall  have  said  right  for the same  period  of time
remaining  on any  unexercised  portion of this  Warrant),  without  immediately
exercising this Warrant,  to purchase the kind and amount of shares of stock and
other  securities and property  receivable upon such  reclassification,  capital
reorganization or other change, consolidation, merger, sale or conveyance.


                                      - 6 -









Any such provision  shall include  provision for  adjustments  which shall be as
nearly equivalent as may be practicable to the adjustments  provided for in this
Warrant.  However, in the event that the Company,  using its good faith efforts,
is unable to negotiate with the acquiring  entity the assumption of the Warrants
as provided in the preceding  portion of this paragraph,  then and in such event
this Warrant shall terminate,  to the extent not previously exercised, as of the
record date for such  transaction  upon and only upon  payment of a  "Retirement
Fee" to the Holder(s) hereof.

This Retirement Fee shall consist of the same kind of property  (including cash,
if any) to be received by the Company's  stockholders pursuant to the Triggering
Event (and, at parity with holders of Common Stock,  treated in accordance  with
all the other terms and conditions,  including  timing and manner of payment for
the purchase)  and the Company  herein  agrees that said  Retirement  Fee may be
arrived at by private  negotiation  between the Company and the Holder(s) or may
be arbitrated in accordance with the provisions herein provided.

However,  the Company now and  specifically  agrees  that,  in the event of such
private negotiation, it shall accept an amount to be paid to the Holder(s) (as a
senior  obligation of the company in any such  transaction)  in  arbitration  or
negotiation which is not less than the lowest sum per Warrant which shall result
from application of any then applicable  Warrant  Valuation  Techniques (such as
the  Black-Scholes  Model)  which may be applied  to  publicly  traded  warrants
covering  publicly traded common stock, it being intended by the Company and the
Holder(s) that the Retirement Fee should reflect: (a) the difference between the
purchase and exercise price per share plus (b) a warrant premium factor commonly
determinable by the aforementioned models. Said Retirement Fee shall be a senior
obligation of the Company and shall be paid to Holder(s)  from first proceeds of
any sale or merger in cash unless otherwise  negotiated  between the Company and
Nace (the original Holder).

All subsequent  Holders shall agree,  by acceptance of assignment of any portion
of the Warrant covered by this certificate,  to be bound by this provision.  All
costs and expenses directly  attributable to the determination of the Retirement
Fee (including but not limited to the costs of outside appraisal(s)) shall be at
the expense of the Company.

The foregoing  provisions of this section 10 shall similarly apply to successive
reclassification,  consolidations,  mergers, sales, or conveyances. In the event
that in any such  capital  reorganization  or  reclassification,  consolidation,
merger, sale or conveyance, additional shares of Common Stock shall be issued in
exchange, conversion,  substitution or payment, in whole or in part, for or of a
security of the Company other than Common Stock, any such issue shall be treated
as an issue of Common Stock covered by the  provisions of paragraphs 3, 6, and 9
hereof,  with the amount of the  consideration  received  upon the issue thereof
being  determined by the Board of Directors of the Company in consultation  with
the  Company's  auditors,  such  determination  to be final and  binding  on the
Holder(s).


                                      - 7 -









         (xi)     Transfer to Comply with the Securities Act of 1933.

                           (a)      This   Warrant  or  the Warrant Stock or any
other security issued or issuable upon exercise of this Warrant may not be sold,
transferred  or otherwise  disposed of except to a person who, in the opinion of
counsel reasonably satisfactory to the Company, is a person to whom this Warrant
or such Warrant Stock may legally be transferred  pursuant to paragraph 4 hereof
without  registration and without the delivery of a current prospectus under the
Securities  Act with  respect  thereto;  and then only  against  receipt  by the
Company of an agreement  from such person to comply with the  provisions of this
paragraph 11 with respect to any resale or other disposition of such securities.

                           (b)      The  Company  may cause the following legend
to be set  forth on each  certificate  representing  Warrant  Stock or any other
security  issued or  issuable  upon  exercise of this  Warrant  not  theretofore
distributed to the public  pursuant to paragraphs  12, 13, or 14 hereof,  unless
counsel for the Company is of the opinion as to any such  certificate  that such
legend is unnecessary.


                           "The  securities  represented by this certificate may
not be offered for sale,  sold or otherwise  transferred  except  pursuant to an
effective  registration  statement under the Securities Act of 1933 (the "Act"),
or pursuant to an exemption from registration under the Act."

         (xii)  Demand  Registration.  If at any  time,  after  the next  public
offering of registered  Common Shares of the Company (as previously  covered and
defined herein) Nace shall decide to sell or otherwise  dispose of Warrant Stock
then owned or to be owned upon intended  exercise of this Warrant by Nace,  then
Nace and only  Nace may give  written  notice  to the  Company  of the  proposed
disposition,  specifying  the  number of shares of  Warrant  Stock to be sold or
disposed  of and  requesting  that the Company  prepare and file a  registration
statement under the Securities Act of 1933, as amended (the  "Securities  Act"),
covering such Warrant Stock.

The Company  shall within 10 days  thereafter  give written  notice to the other
Holders of  Warrants  or  Warrant  Stock of such  request  and each of the other
Holders shall have the option for a period of 30 days after receipt by it (them)
of  notice  from the  Company  to  include  its  (their)  Warrant  Stock in such
registration  statement.  The  Company  shall use its best  efforts  to cause an
appropriate registration statement (the "Registration  Statement") covering such
Warrant  Stock to be filed with the  Securities  and  Exchange  Commission  (the
"Commission")  and to become effective as soon as reasonably  practicable and to
remain  effective until the completion of the  distribution of the Warrant Stock
to be offered or sold; provided,  however, that not more than once in any twelve
month period the Company  shall have the right to postpone for a period of up to
60 days any demand made pursuant to this

                                      - 8 -









Warrant if the underwriters for such offering advise the Company in writing that
market conditions make such a postponement advisable to the Company.

The Holder(s) whose Warrant Stock is (are) included in a Registration  Statement
is (are) hereinafter referred to as the "Selling Shareholder(s)".

Each notice  delivered by a Selling  Shareholder(s)  to the Company  pursuant to
this  paragraph 12 shall  specify the Warrant  Stock  intended to be offered and
sold by such Selling Shareholder(s), express such Selling Shareholder(s) present
intent to offer such Common Shares for distribution, and contain the undertaking
of such Selling  Shareholder(s)  to provide all information and materials and to
take all action as may be required in order to permit the Company to comply with
all applicable requirements of the Securities Act, and any rules and regulations
promulgated thereunder, and to obtain acceleration of the effective date of such
Registration Statement.

The  Company  shall  not be  obligated  to file  more  than  three  Registration
Statements  pursuant  to the  foregoing  provisions  of this  paragraph  12. The
Company  shall bear all of the Costs and  Expenses  (as  hereinafter  defined in
paragraph 20 hereof) of the first such registration.  The Selling Shareholder(s)
shall bear the costs and expenses of all further registrations  pursuant to this
paragraph 12. A demand for  registration  under this paragraph 12 will not count
as such until the Registration Statement has become effective.

         (xiii) Shelf Registration By Original Holder. At any time and from time
to time during the term of this Warrant or its  successors  (including  renewals
and  extensions  as provided  for herein)  Nace  Resources,  Inc.  and only Nace
Resources,  Inc.  (as the  original  Holder  hereof),  may demand (and  actually
expects) that the Company will file a Registration Statement with the Commission
for the registration of underlying shares issuable upon exercise of this Warrant
or any part  thereof,  whether or not said  Warrant  has,  in the  interim  been
assigned or re-assigned to other parties.

In this  event,  the  Company  shall pay all of the Costs and  Expenses  of said
Registration  for each such demand except that the Holder shall be  responsible,
if such  demand is made by the  Holder  during a period in which the  Company is
unable or unqualified to file a "short form" S-3 Statement (or its then relevant
equivalent) for paying all of the Costs and Expenses of said Registration  which
are  estimated to exceed costs for a similar  Registration  assuming the Company
had been, as of the date of the demand, a reporting  Company for three (3) years
and could file a "short form" statement.  In this case, the costs payable by the
Holder shall be determinable  by securities  counsel to the Company and both the
Company and the Holder are entitled to rely on such an estimate.

Once filed, the Company shall be obligated to continue this "shelf registration"
for the maximum time allowable under the then relevant regulations,  at its sole
expense.

                                      - 9 -










         (xiv)    Procedure  for  Demand  Registration.  In  connection with the
filing of a  Registration  Statement  pursuant to  paragraph  12 hereof,  and in
supplementation  and not in limitation of the  provisions  thereof,  the Company
shall:

                  (a) Notify the Selling  Shareholder(s) as to the filing of the
Registration Statement and of all amendments or supplements thereto filed thirty
(30) days prior to the effective date of said Registration Statement;

                  (b)  Notify the  Selling  Shareholder(s),  promptly  after the
Company  shall  receive  notice  thereof,  of the time  when  said  Registration
Statement became effective or when any amendment or supplement to any prospectus
forming a part of said Registration Statement has been filed;

(c) Notify the Selling  Shareholder(s)  promptly of any requestby the Commission
for the amending or supplementing of such  Registration  Statement or prospectus
or for additional information;

                  (d)  Prepare  and  promptly  file  with  the  Commission,  and
promptly notify the Selling  Shareholder(s)  of the filing of, and amendments or
supplements to such Registration  Statement or prospectus as may be necessary to
correct any  statements or omissions if, at any time when a prospectus  relating
to the Warrant Stock is required to be delivered  under the Securities  Act, any
event with respect to the Company  shall have  occurred as a result of which any
such  prospectus  or any other  prospectus  as then in effect  would  include an
untrue statement of a material fact or omit to state any material fact necessary
to make the statements therein not misleading; and, in prepare and file with the
Commission,  promptly  upon the Selling  Shareholder(s)'  written  request,  any
amendments or supplements to such Registration Statement or prospectus which may
be reasonably  necessary or advisable in connection with the distribution of the
Warrant Stock;

                  (e)   Prepare   promptly   upon   request   of   the   Selling
Shareholder(s) or any underwriters for the Selling Shareholder(s) such amendment
or amendments to such Registration Statement and such prospectus or prospectuses
as may be reasonably  necessary to permit  compliance  with the  requirements of
Section 10 (a) (3) of the Securities Act;

                  (f) Advise the Selling Shareholders promptly after the Company
shall  receive  notice or obtain  knowledge of the issuance of any stop order by
the Commission  suspending the effectiveness of any such Registration  Statement
or amendment  thereto or of the  initiation or threatening of any proceeding for
that  purpose,  and promptly use its best efforts to prevent the issuance of any
stop order or obtain its withdrawal promptly if such stop order would be issued;


                                     - 10 -









                  (g) Use its best  efforts  to  qualify  as soon as  reasonably
practicable  the Warrant Stock for sale under the securities or blue-sky laws of
such states and  jurisdictions  within the United  States as shall be reasonably
requested by the Selling Shareholder(s);  provided that the Company shall not be
required in  connection  therewith  or as a  condition  thereto to qualify to do
business,  to become  subject  to  taxation  or to file a consent  to service of
process generally in any of the aforesaid states or jurisdiction;

                  (h) Furnish the Selling Shareholder(s),  as soon as available,
copies of any Registration  Statement and each preliminary or final  prospectus,
or supplement or amendment required to be prepared pursuant thereto, all in such
quantities  as the  Selling  Shareholder(s)  may  from  time to time  reasonably
request, and;

                  (i) If requested by the Selling Shareholder(s),  enter into an
agreement with the underwriters of the Warrant Stock being registered containing
customary provisions and reflecting the foregoing.

         (xv)  Incidental  Registration.  Other than as covering in paragraph 13
hereof,  if at any time the Company  subsequent  to the next public  offering of
registered  Common  Shares  of  the  Company,  shall  propose  the  filing  of a
Registration  Statement on an appropriate  form under the Securities Act for the
registration  of  any  securities  of the  Company,  other  than a  registration
statement on Form S-4 or S-8 or any equivalent  form of  registration  statement
then in  effect,  then the  Company  shall  give the  Holder(s)  notice  of such
proposed  registration and shall include in any Registration  Statement relating
to such  securities  all or a portion of the  Warrant  Stock then owned or to be
owned by such  Holder(s),  which such Holder(s) shall request (such Holder(s) to
be  considered  "Selling  Shareholder(s)"),  by  notice  given  by such  Selling
Shareholder(s)  to the Company  within 15 business days after the giving of such
notice by the Company,  within 15 business  days after the giving of such notice
by the  Company,  to be so  included.  In the event of the  inclusion of Warrant
Stock  pursuant  to this  paragraph  15,  the  Company  shall bear the Costs and
Expenses of such registration; provided, however that the Selling Shareholder(s)
shall pay the fees and  disbursements  of their own counsel and,  pro-rata based
upon the number of shares of Warrant Stock  included  therein as these relate to
the total  number of Common  Shares to be offered or sold,  the  Securities  Act
registration  fees and underwriters  discounts and compensation  attributable to
the  inclusion of such Warrant  Stock;  and,  provided  further,  however,  that
amounts to which any person or entity  shall  become  entitled  pursuant to this
sentence  shall  not  include  amounts  which may  become  payable  pursuant  to
paragraphs  16 or 17 hereof.  Nothing in this  paragraph  15 shall  require  the
registration of Warrant Stock in a Registration Statement relating solely to (a)
securities to be issued by the Company in connection with the acquisition of the
stock or the assets of another  corporation,  or the merger or  consolidation of
any other corporation by or with the Company or any of its  subsidiaries,  or an
exchange  offer with any  corporation,  (b) securities to be offered to the then
existing  security  holders of the Company,  or (c)  securities to be offered to
employees of the Company. In the event the

                                     - 11 -









distribution  of securities of the Company  covered by a Registration  Statement
referred  to in this  paragraph  15 is to be  underwritten,  then the  Company's
obligation to include  Warrant Stock in such a Registration  Statement  shall be
subject, at the option of the Company, to the following further conditions:

                  (a)  The   distribution   for  the   account  of  the  Selling
Shareholders shall be underwritten by the same underwriters who are underwriting
the  distribution  of the  securities  for the account of the Company and/or any
other persons whose  securities are covered by such  Registration  Statement and
the Selling  Shareholder(s) shall enter into an agreement with such underwriters
containing customary provisions.

                  (b)  If  the  Selling   Shareholders   are   included  in  the
Registration  Statement and if the underwriting  agreement entered into with the
aforesaid  underwriters contains restrictions upon the sale of securities of the
Company,  other than the  securities  which are to be included  in the  proposed
distribution,  for a period not exceeding 90 days from the effective date of the
Registration Statement, then such restrictions shall be binding upon the Selling
Shareholder(s) with respect to any Warrant Stock not covered by the Registration
Statement and, if requested by the underwriter, the Selling Shareholder(s) shall
enter into a written agreement to that effect.

                  (c) If the  underwriters  shall state in writing that they are
unwilling to include any or all of the Selling  Shareholder(s)  Warrant Stock in
the proposed underwriting because such inclusion would materially interfere with
the  orderly  sale and  distribution  of the  securities  being  offered  by the
Company, then the number of the Selling  Shareholder(s)' shares of Warrant Stock
to be included shall be reduced pro rata on the basis of the number of shares of
Warrant   Stock   originally   requested   to  be  included   by  such   Selling
Shareholder(s),  or there  shall be no  inclusion  of the shares of the  Selling
Shareholder(s)  in the  Registration  Statement  not proposed  distribution,  in
accordance with such statement by the underwriters.

                  However,  if in such an event,  the Holder(s) hereof shall not
be able to include at least fifty percent (50%) of the Warrant Stock  originally
requested to be included,  then the Company  shall agree to pay all of the Costs
and Expenses of a Shelf Registration to be filed at a later date.

         (xvi)  Indemnification by the Company.  The Company shall indemnify and
hold  harmless  each Selling  Shareholder,  any  underwriter  (as defined in the
Securities  Act) for the  Selling  Shareholder,  and each  person,  if any,  who
controls the Selling  Shareholder or such underwriter  within the meaning of the
Securities Act (but, in the case of an underwriter or a controlling person, only
if such under writer or controlling  person indemnifies the persons mentioned in
paragraph  17(b)  hereof in the manner set forth  therein)  against  any losses,
claims,  damages  or  liabilities,  joint  or  several,  to  which  the  Selling
Shareholder or any such

                                     - 12 -









underwriter or controlling  person becomes subject,  under the Securities Act or
otherwise, insofar as such losses, claims, damages or liabilities (or actions in
respect  thereof) are caused by any untrue statement or alleged untrue statement
of any material fact contained in any  preliminary  prospectus (if used prior to
the  effective  date  of  the  Registration  Statement),  or  contained,  on the
effective date thereof,  in any  Registration  Statement under which the Selling
Shareholder(s)'  shares of Warrant Stock were  registered  under the  Securities
Act, the prospectus  contained therein,  or any amendment or supplement thereto,
arising out of or based upon the omission or alleged omission to state therein a
material fact required to be stated  therein or necessary to make the statements
therein not misleading; the Company shall reimburse the Selling Shareholder,  or
any such underwriter or controlling  person, in connection with investigating or
defending any such loss, claim, damage, liability or action; provided,  however,
that the Company  shall not be liable to any such person in any such case to the
extent that any such loss, claim,  damage,  liability or action arises out of or
is based upon any untrue  statement or alleged  untrue  statement or omission or
alleged  omission  made in  reliance  upon and in  conformity  with  information
furnished in writing to the Company by such person  expressly  for  inclusion in
any of the foregoing documents.

         (xvii) Indemnification by Selling Shareholders. Each individual Selling
Shareholder shall:

                  (a)  Furnish  to  the  Company  in  writing  all   information
concerning  it and  it's  holdings  of  securities  of the  Company  as shall be
required  in  connection  with the  preparation  and filing of any  Registration
Statement covering any Shares of Warrant Stock.

                  (b)  Indemnify  and hold  harmless  the  Company,  each of its
directors,  each of its officers who has signed a Registration  Statement,  each
person,  if any, who controls the Company  within the meaning of the  Securities
Act and any  underwriter  (as defined in the  Securities  Act) for the  Company,
against any losses,  claims,  damages or liabilities to which any such director,
officer,  controlling  person  or  underwriter  may  become  subject  under  the
Securities  Act or  otherwise,  insofar  as such  losses,  claims,  damages,  or
liabilities (or actions in respect  therefor) are caused by any untrue statement
of any material fact contained in any  preliminary  prospectus (if used prior to
the effective date of the Registration Statement) or contained, on the effective
date  thereof,   in  any   Registration   Statement   under  which  the  Selling
Shareholder's   securities  were  registered   under  the  Securities  Act,  the
prospectus contained therein, or any amendment or supplement thereto, or arising
out of or based upon the omission to state  therein a material  fact required to
be stated therein or necessary to make the statement therein not misleading;  in
each case to the extent,  but only to the extent,  that such untrue statement or
omission was made in reliance upon and in conformity with information  furnished
to the Company in writing by the Selling Shareholder  expressly for inclusion in
any of the foregoing documents,  and the Selling Shareholder shall reimburse the
Company and any such director,  officer,  controlling  person or underwriter for
any legal or other  expenses  reasonably  incurred  by the  Company  or any such
director, officer, controlling

                                     - 13 -









person or underwriter  in connection  with  investigating  or defending any such
loss, claim, damage, liability or action.

         (xviii)   Notification   by   Selling    Shareholders.    The   Selling
Shareholder(s) and each other person indemnified pursuant to paragraph 16 hereof
shall, in the event it receives notice of the commencement of any action against
it which is based upon an alleged act or omission which, if proven, would result
in the Company having to indemnify it pursuant to paragraph 16 hereof,  promptly
notify the Company,  in writing,  of the  commencement of such action and permit
the  Company,  if the Company so notifies the Selling  Shareholder(s)  within 10
days after receipt by the Company of notice of the  commencement  of the action,
to  participate  in and to  assume  the  defense  of such  action  with  counsel
reasonably  satisfactory to the Selling Shareholder(s) or such other indemnified
person,  as the case may be. The omission to notify the Company  promptly of the
commencement  of any such action shall not relieve the Company of any  liability
to indemnify the Selling Shareholder(s) or such other indemnified person, as the
case may be, under  paragraph  16 hereof,  except to the extent that the Company
shall suffer any loss by reason of such failure to give notice which it may have
pursuant to the rights conveyed to the Holders) in this Warrant.

         (xix) Notification by the Company to Selling Shareholders.  The Company
agrees that, in the event it receives  notice of the  commencement of any action
against it which is based  upon an alleged  act or  omission  which,  if proven,
would result in a Selling  Shareholder  having to indemnify the Company pursuant
to  paragraph  17(b)  hereof,  the  Company  will  promptly  notify the  Selling
Shareholder in writing of the commencement of such action and permit the Selling
Shareholder,  if the Selling  Shareholder so notifies the Company within 10 days
after receipt by the Selling  Shareholder of notice of the  commencement  of the
action,  to  participate  in and assume the defense of such action with  counsel
reasonably  satisfactory  to the  Company.  The  omission  to notify the Selling
Shareholder  promptly of the  commencement  of any such action shall not relieve
the Selling  Shareholder  of liability to indemnify the Company under  paragraph
17(b) hereof, except to the extent that the Selling Shareholder shall suffer any
loss by reason of such failure to give notice, and shall not relieve the Selling
Shareholder of any other  liabilities  which it may have under this or any other
agreement then in effect between the Company and the Selling Shareholder.

         (xx) Costs and Expenses. As used in this Warrant,  "Costs and Expenses"
shall  include  all  of the  costs  and  expenses  relating  to  the  respective
Registration  Statement(s) involved,  including but not limited to, registration
fees, filing and qualification  fees,  blue-sky  expenses,  printing and mailing
expenses, fees and expenses of Company's counsel and, if/when appropriate,  fees
and  expenses of counsel  designated  by the Selling  Shareholder(s)  (provided,
however, that no more than one such counsel for the Selling Shareholder(s) shall
be designated on any occasion).


                                     - 14 -









         (xxi)   Addresses.   All  notices,   certificates,   waiver  and  other
communications required or permitted to be given hereunder to any of the parties
by any other party shall be in writing and shall be delivered personally or sent
by next day delivery  service or registered or certified mail,  postage prepaid,
as follows:

                      (a)      If to the Company, addressed to:

                                       Cheung Laboratories, Inc.
                                       10220-I Old Columbia Road
                                       Columbia, MD 21046-1705
                                       Attention: Mr. John Mon, General Manager

                      (b)      If to a Holder,  addressed to the address of
                               each  such  Holder  as  shall,  from time to
                               time,  appear on the  records of the Company
                               or those of the Company's  transfer agent as
                               may be the case.

Any notice  delivered  personally or sent by next day delivery  service shall be
deemed to have been given on the date so delivered,  and any notice delivered by
registered  or certified  mail shall be deemed to have been given on the date it
is received.  Any party may change the address to which notices hereunder are to
be sent by  giving  written  notice  of such  change of  address  in the  manner
provided for giving notice.

         (xxii) Waiver.  No waiver by a Holder of any right  hereunder  shall be
effective  unless it is in writing  which  specifically  refers to the provision
hereof under which such right  arises,  and no such waiver  shall  operate or be
construed  as a  waiver  of any  subsequent  breach,  whether  of a  similar  or
dissimilar nature.

         (xxiii) Entire  Warrant.  This Warrant may be amended,  supplemented or
modified only by a written instrument executed by the Company and the Holder(s).
While separate executed letters proposing and/or accepting  amendment(s) sent to
the Company by the Holder(s) or to the Holder(s) by the Company  shall,  for the
purposes  of  this  paragraph  23,  constitute  a  valid  agreement  as  to  the
relationship  then created by and between the Company and the individual  Holder
in  question,  only Nace (as the original  Holder)  may, by  agreement  with the
Company,  bind all  subsequent  Holders to one single written  instrument  which
shall  serve to amend  the terms and  conditions  hereof,  and to which by their
acceptance  of an assignment  of any portion of this  Warrant,  they  implicitly
agree to be bound by.

         (xxiv)  Applicable  Law. This Warrant and the legal relations among the
parties  hereto  shall be  governed  by and  construed  in  accordance  with the
substantive laws of the State of Illinois applicable to contracts made and to be
performed  therein  without  giving effect to the principles of conflict of laws
thereof.


                                     - 15 -









         (xxv)  Appraisal  Rights.  In the  event  that the  Company's  board of
directors  has not  approved  and the Company has not  executed  the next public
offering of the Company's  Common Stock prior to the second  anniversary  of the
issuance of this Warrant,  a majority in interest of the Holder(s) may, in their
sole discretion and at any time thereafter, give notice to the Company that they
wish to avail  themselves of Appraisal Rights rather than force the Company into
filing a  Registration  Statement  against  its will by  demanding  registration
hereunder.

Should this event occur,  the Company and the  Holder(s)  shall meet together to
appraise  the value of the  Warrant(s)  and shall  proceed  to do so in the same
fashion  and  spirit as is  provided  for in the first  paragraph  of section 10
hereof in determining a Retirement  Fee to be paid the Holders upon  termination
of the Warrant(s).

         (xxvi) Binding Effect.  The provisions  contained in this Warrant shall
be binding  upon and inure to the  benefit of the  Company  and the  Holders and
their respective successors, permitted assigns, heirs and legal representatives.
Any person to whom all or a part of a Holder's rights and obligations  hereunder
are assigned shall fulfill such of the assigning Holder's obligations  hereunder
as have been  assigned,  and shall be entitled to all of the rights and benefits
hereunder to the extent that such person has assumed such Holder's  obligations.
The rights and powers of each  successive  Holder  hereunder are granted to such
Holder  as an owner  of  Warrants  or  Warrant  Stock  as the  case may be.  Any
subsequent  Holder whether becoming such by transfer,  assignment,  operation of
law or  otherwise,  shall have the same rights and powers which a Holder  owning
the same number of Warrants  and/or  Warrant Stock has  hereunder,  and shall be
entitled to  exercise  such  rights and powers  until such Holder or  subsequent
Holder no longer owns any Warrants or Warrant Stock.  Except as provided in this
paragraph  26, this  Warrant  does not  create,  and shall not be  construed  as
creating, any rights enforceable by any person not a Holder.

         (xxvii) Validity.  If any term,  provision,  covenant or restriction of
this Warrant is held by a court of competent jurisdiction to be invalid, void or
unenforceable,  the  Company  agrees  that such  term,  provision,  covenant  or
restriction  shall be  reformed  to the  extent  possible  consistent  with such
judicial holding to reflect the intent of the Company and the original Holder as
stated  herein  and  the  remainder  of the  terms,  provisions,  covenants  and
restrictions  of this Warrant shall remain in full force and effect and shall in
no way be  affected,  impaired  or  invalidated.  It is  hereby  stipulated  and
declared to be the  intention  of the Company that it would have  executed  this
Warrant  including the remaining terms,  provisions,  covenants and restrictions
without including any of such provision of term which may be hereafter  declared
invalid, void or unenforceable.



This Warrant (Serial Number:  0300) is granted and sold on this 1st day of June,
1996.

                                     - 16 -










                                             Cheung Laboratories, Inc.



                                             By:______________________________
                                                 Augustine Cheung, President


                                     - 17 -









                                  PURCHASE FORM

                                                               Dated: __________

Cheung Laboratories, Inc.
10220-1 Old Columbia Road
Columbia, MD  21046-1705

Attention: Mr. John Mon, General Manager


Attached herewith is Cheung Laboratories,  Inc.'s Common Stock Purchase Warrant,
Serial Number:  __________,  giving the Holder the right to purchase  __________
shares.

I/We  hereby  notify  you that  I/we are  exercising  my/our  right to  purchase
__________  shares  and have  enclosed  herewith  my/our  check in the amount of
$__________,  representing  the  aggregate  exercise  price of said  shares.  If
transfer  taxes  (federal or state) are  applicable  to this  transaction,  I/we
understand that you will be billing me/us for said taxes,  which I/we agree will
be  promptly  remitted  to you  within  ten  (10)  days  of  my/our  receipt  of
notification.

I/We hereby  state that the shares being  purchased  are to be held by me/us for
investment purposes and not with a view to sale, except pursuant to an effective
registration statement or an exemption therefrom.

Please cancel the enclosed Warrant and, if applicable,  send me/us a Warrant, in
partial  substitution  on identical  terms,  for the remaining  shares not being
purchased pursuant to this notification.



Yours very truly,


Holder of Warrant, Serial Number __________

_______________________
_______________________
_______________________
_______________________
                                     - 18 -







                                                              Serial Number 0100
Void after 5:00 p.m., Chicago Time, on June 1, 2001 (unless extended as provided
below).

                                                             Warrant to Purchase
                                                               certain Shares of
                                                             Common Stock, dated
                                                                   June 1, 1996.

                                 CERTIFICATE OF
                        WARRANT TO PURCHASE COMMON STOCK
                                       OF
                            CHEUNG LABORATORIES, INC.

This Is To Certify That, FOR CASH AND OTHER VALUE RECEIVED, ANTHONY RIKER, LTD.,
an  Illinois   corporation  ("ARL"  or  "Riker"),   its  nominees,   or  assigns
(hereinafter,  the  "Holder(s)")  are  entitled  to  purchase,  subject  to  the
provisions of this Warrant (its successors, divisions or additions), from Cheung
Laboratories,  Inc., a corporation  duly organized,  in good standing within its
domicile,  and whose  offices as of the date hereof are at 10220-I Old  Columbia
Road, Columbia, MD 21046 (hereinafter,  the "Company"),  at any time on or after
June 1,  1996,  and not later  than 5:00 p.m.,  Chicago  Time,  on June 1, 2001,
unless  extended or renewed as provided in paragraphs 1 and 7 below,  restricted
and  legended  shares of  common  stock of the  Company  ("Common  Stock")  at a
purchase  price  equal to Forty One Cents  ($0.41  U.S.) per share  which is the
current bid price as is publicly  quoted on NASDAQ Bulletin Board as of the date
hereof (and as further adjusted by subsequent events between the preparation and
execution of this Warrant Certificate).

The number of shares of Common  Stock to be received  upon the  exercise of this
Warrant  and the  price to be paid for a share of Common  Stock may be  adjusted
from time to time as hereinafter set forth.

Supplementing, notwithstanding, and in support of the foregoing, the Company and
the original Holder hereof ("Riker"),  intend that the number of shares issuable
hereunder shall be 92,318.

The shares of Common Stock deliverable upon such exercise,  and as adjusted from
time to time, are  hereinafter  referred to as "Warrant  Stock" and the exercise
price for a share of Common  Stock in  effect at any time and as  adjusted  from
time to time is hereinafter sometimes referred to as the "Exercise Price".


                                      - 1 -









The term "Warrant" used above and throughout  this  Certificate  shall mean this
Warrant or successor  Warrants issued in exchange for it for any reason pursuant
to the terms and conditions contained herein.

         13. Exercise of Warrant.  Subject to the provisions of paragraphs 6 and
7 hereof,  this Warrant may be exercised in whole or in part at any time or from
time to time on or after  June 1, 1996 but not later  than  5:00  p.m.,  Chicago
Time,  on June  1,  2001 or if June  1,  2001  is a day on  which  U.S.  banking
institutions  are  authorized by law to close,  then on the next  succeeding day
which  shall not be such a day,  by  presentation  and  surrender  hereof to the
Company or at the office of its stock transfer agent, if any, with a copy of the
Purchase Form attached  hereto duly executed and  accompanied  by payment of the
Exercise  Price for the number of shares  specified in such form,  together with
all federal and state  taxes  applicable  upon such  exercise,  if any,  and the
Company shall  promptly issue and deliver stock  certificates  for the number of
shares purchased to the Holder hereof within two (2) business days in conformity
with  industry  practice.  The Company may  unilaterally  extend the time within
which this Warrant may be exercised but is not obligated to do so.

If this  Warrant  should be  exercised  in part  only or all or a portion  of it
renewed as provided for in paragraph 7 hereof or otherwise,  the Company  shall,
upon  surrender  of this  Warrant  for  cancellation,  execute and deliver a new
Warrant,  containing  terms and  conditions  identical to this Warrant except as
provided  for herein,  evidencing  the right of the  Holder(s)  to purchase  the
balance of the shares purchasable hereunder.

Upon receipt of this Warrant,  the executed Purchase Form and the Exercise Price
by the  Company  or,  if then  applicable,  by its  stock  transfer  agent,  the
Holder(s)  shall be deemed to be the holder(s) of record of the shares of Common
Stock issuable upon such exercise, notwithstanding that the stock transfer books
of the  Company  shall  then be closed or that  certificates  representing  such
shares of Common Stock shall not then be actually  delivered  to the  Holder(s),
their  agents or  designees.  The  Company  shall keep  detailed  records of the
disposition of this,  successor  Warrants,  and any Warrant issuable  hereunder,
each bearing a serial number, and shall make such records available to Holder(s)
or their agents upon request.

         14.  Reservation of Shares.  The Company hereby represents and warrants
that at all times subsequent  hereto there shall be reserved for issuance and/or
delivery upon exercise of this Warrant such number of shares of its Common Stock
as shall be required for issuance or delivery  upon  exercise of this Warrant or
any Warrant issuable hereunder.

         15.  Fractional  Shares.  No  fractional  shares or scrip  representing
fractional share shall be issued upon exercise of this Warrant.  With respect to
any fraction of a share called for upon any exercises hereof,  the Company shall
pay to the Holder(s) an amount in cash equal to such fraction  multiplied by the
current market value of such fractional share, determined as follows:

                                      - 2 -










                  (a) If the  Common  Stock is listed on a  national  securities
exchange or  admitted  to unlisted  trading  privileges  on such  exchange,  the
current  value shall be the last reported sale price of the Common Stock on such
exchange on the last  business day prior to the date of exercise of this Warrant
or if no such sale is made on such day on such exchange; or

                  (b) If the  Common  Stock  is not so  listed  or  admitted  to
unlisted  trading  privileges,  the current  value shall be the mean of the last
reported bid and asked prices reported by the National Association of Securities
Dealers  Automated  Quotation  System  (or,  if not so quoted on NASDAQ,  by the
National  Quotation  Bureau,  Inc.) on the last business day prior to the day of
the exercise of this Warrant; or

                  (c) If the  Common  Stock  is not so  listed  or  admitted  to
unlisted  trading  privileges and bid and asked prices are not so reported,  the
current  fair market  value shall be an amount,  not less than book value or the
last known price paid by a  purchaser  for said Common  Stock,  determined  in a
reasonable manner as may be prescribed by the Board of Directors of the Company.

         16.  Exchange,  Assignment  of Loss of Warrant.  Subject to  applicable
securities laws and the terms of the legend set forth in paragraph 11(b) hereof,
this Warrant  certificate is fully exchangeable and (by definition)  assignable,
without expense, at the option of the Holder(s), upon presentation and surrender
hereof to the Company or at the office of its stock transfer  agent, if any, for
other Warrant  certificates of different  denominations  entitling the Holder(s)
thereof to purchase in the  aggregate  the same number of shares of Common Stock
purchasable hereunder.

Any assignment  hereof shall be made by surrender of this Warrant to the Company
or at the office of its stock transfer agent,  if any, with a written,  executed
assignment,  instructions  and funds  sufficient  to pay  transfer tax (if any);
whereupon the Company shall,  without charge,  execute and deliver a new Warrant
certificate  in  the  name  of the  assignee(s)  named  in  such  instrument  of
assignment and this Warrant certificate shall promptly be canceled. This Warrant
may be divided upon  presentation  hereof at the office of the Company or at the
office of its stock  transfer  agent,  if any,  together with a written  notice,
specifying the names and  denominations  in which new Warrants are to be issued,
and signed by the Holder  thereof.  The terms  "Warrant" and  "Warrants" as used
herein include any Warrants  issued in  substitution  for or replacement of this
Warrant, or into which this Warrant may be divided or exchanged.

Upon  receipt of the Company of evidence  reasonably  satisfactory  to it of the
loss,  theft,  destruction  or mutilation  of this Warrant,  and, in the case of
loss, theft or destruction, of reasonably satisfactory indemnification, and upon
surrender  and  cancellation  of this Warrant,  if  mutilated,  the Company will
execute and deliver a new Warrant of like tenure and date.  Any such new Warrant
executed and delivered shall constitute an additional  contractual obligation on
the part of the Company,  whether or not this Warrant so lost, stolen, destroyed
or mutilated

                                      - 3 -









shall be at any time enforceable by anyone. Nevertheless, neither the Company or
the Holder(s) anticipate that this Warrant or any successor Warrant shall itself
be  registered  (rather that the  underlying  shares shall be  registered),  the
Company shall not impose  unreasonable  burdens on the Holder(s) with respect to
indemnification if same becomes necessary.

         17. Rights of the Holders.  The Holder(s)  shall not, by virtue hereof,
be  entitled to any rights of a  shareholder  in the  Company,  either at law or
equity,  and the rights of the Holder(s)  are limited to those  expressed in the
Warrant and are not  enforceable  against  the Company  except to the extent set
forth herein,  PROVIDED  HOWEVER,  that the Company  shall,  in a timely manner,
provide  Holder(s)  with a copy of each and  every  press  release,  mailing  to
shareholders  and  periodic  filing  with  the  U.S.   Securities  and  Exchange
Commission  made by the Company,  and provided that the Company shall be, at all
times during the tenure of this Warrant or its  successors,  in compliance  with
all its contractual obligations to Riker and its affiliates.

         18.      Adjustments to Exercise Price and Number of Shares.

                  (a) In the case of a  dividend  or other  distribution  on any
stock of the Company or subdivision or combination of the outstanding  shares of
Common Stock,  the exercise  price and the number of shares  issuable  hereunder
shall be adjusted  as  follows:  the  Exercise  Price  shall be  proportionately
decreased in the case of each such issuance (on the day following the date fixed
for determining  shareholders entitled to receive such dividend or distribution)
or   proportionately   decreased  in  the  case  of  each  such  subdivision  or
proportionally  increased in the case of each such combination (on the date that
such  subdivision  or  combination  shall  become  effective).   Notwithstanding
anything in this  document to the  contrary,  it is the intention of the Company
and the Holder  hereof  that the number of shares of the Warrant  Stock  granted
hereunder  are based upon the  assumption  that the Company will redeem from Mr.
Gao Yu Wen  20,000,000  shares of Common Stock and retire these shares of Common
Stock from the books of the Company.  In the event that less than all 20,000,000
shares of Common  Stock are  redeemed  from Mr.  Gao,  then the number of shares
granted hereunder shall be adjusted proportionately.

                  Upon any  adjustment of the Exercise  Price,  the Holder(s) of
this Warrant shall  thereafter  (until  another such  adjustment) be entitled to
purchase,  at the new Exercise  Price,  the number of shares,  calculated to the
nearest full share, obtained by multiplying the number of shares of Common Stock
initially issuable upon exercise of this Warrant by the Exercise Price in effect
on the date hereof and  dividing  the  product so  obtained by the new  Exercise
Price.

                  (b)   Anything   in   this   paragraph   6  to  the   contrary
notwithstanding,  the  Company  shall  not be  required  to give  effect  to any
adjustment in the Exercise  Price unless and until the net effect of one or more
adjustments,  determined as above provided,  shall have required a change of the
Exercise Price by at least one cent, ($0.01 U.S.) but when the cumulative net

                                      - 4 -









effect of more than one  adjustment so determined  shall be to change the actual
Exercise  Price by at least one cent,  such change in the  Exercise  Price shall
thereupon be given effect.

                  (c)   Anything   in   this   paragraph   6  to  the   contrary
notwithstanding,  if, subsequent to the grant and sale of this Warrant and for a
period ending the day after the date that the Company's next public  offering is
completed  [a public  offering  being  defined as one in which the Company is in
receipt  of funds of not less than Five  Million  Dollars  ($5,000,000.00  U.S.)
raised by an underwriter pursuant to a Registration Statement (the Form of which
shall then be  applicable)  declared  effective by the  Securities  and Exchange
Commission (the "SEC"), and funds received in full by the Company], covering the
issuance and sale of said shares to the public,  the Company  shall issue Common
Stock or securities  convertible or exercisable into Common Stock by way of sale
for  cash  or  cash  equivalent  proceeds  or by  grant  of  options  to  retain
management,  consultants, employees, or for services or value of any kind, then;
immediately upon  consummation of such sale,  issuance,  or grant, an adjustment
shall be made in the Exercise Price and the number of shares issuable under this
Warrant such that the Holder(s)  hereof,  after such sale,  issuance,  or grant,
shall be entitled to purchase shares sufficient so that Holder(s) shall maintain
the right to acquire the same percentage of the Company's outstanding shares (on
a fully diluted basis),  for the same total investment upon complete exercise of
this  Warrant  prior to such  issuance  or  grant,  the same  percentage  of the
Company's  Common Stock as the Holder(s) were entitled to purchase prior to such
sale, issuance, or grant (the "Anti-Dilution Feature").

Further,  such  adjustment to the Exercise  Price and number of shares of Common
Stock issuable hereunder shall be determined by assuming that all convertible or
exercisable  securities  issued  during the  period in which this  Anti-Dilution
Feature is operative  (defined  above) have been  converted  or  exercised  upon
issuance  whether or not such  securities  shall actually have been converted or
exercised as of the date at which the adjustment is made (date of issuance).

Notwithstanding  anything else in this  paragraph  which might be interpreted to
the contrary,  should at any time subsequent to the issuance of this Warrant but
during the tenure of this Warrant and any renewals or extensions as are provided
for  herein,  any  person  or  entity  shall be  issued  an  option  or  warrant
exercisable  to purchase stock of the Company or stock of the Company is sold to
such person or entity at a price per share less than the then relevant  Exercise
Price as determined as provided herein, an immediate  adjustment in the Exercise
Price for this Warrant (and  successor  Warrants to this Warrant) shall be made.
The effect of this  adjustment  shall be to make the  Exercise  Price under this
Warrant  equal to the lesser  exercise  option or sale price  referenced  above.
However,  this adjustment  shall not have the effect of increasing the number of
shares purchasable hereunder.  Rather it shall reduce the aggregate amount paid,
assuming  full  exercise of this  Warrant,  to an amount  equal to the number of
shares  otherwise then  purchasable  hereunder  multiplied by the newly adjusted
Exercise Price pursuant to this adjustment.


                                      - 5 -









                  (d)  Whenever  reference  is made in this  paragraph  6 to the
issue or sale of shares of Common Stock,  the term "Common Stock" shall mean the
Common  Stock of the Company of the class  authorized  as of the date hereof and
any other  classes of stock  ranking on a parity with or  convertible  into such
Common  Stock  providing,  as is  contemplated,  it is the  Common  Stock of the
Company  which  is to be  offered  and  sold  at the  next  public  offering  of
registered  Common Shares of the Company.  However,  as of the date of grant and
sale of this  Warrant  and subject to the  provisions  of  paragraph  10 hereof,
shares  issuable  upon  exercise  hereof shall  include only shares of the class
designated as Common Stock of the Company as of the date hereof.

         19. Renewal of Exercise  Rights.  If, while this Warrant or any portion
of it remains in effect,  Holder(s)  wish to extend their rights to exercise all
or a portion of this Warrant which would  otherwise  expire and be lost to them,
they may do so by paying to the Company, a sum equal to five percent (5%) of the
then  relevant  Exercise  Price  pertaining to that portion of the Warrant which
would  otherwise  expire (the  "Renewal  Fee") and the Company shall extend that
portion of the Warrant  for a further  period of five (5) years from the date of
receipt of the Renewal Fee but, in no case,  beyond 5:00 p.m.,  Chicago Time, on
June 1, 2006, and shall issue a new Warrant,  identical in every respect to this
Warrant,  except that such new  Warrant  shall  reflect the fact that  Holder(s)
shall have an  additional  five (5) years to exercise  their  rights to purchase
that portion of the Warrant  Stock for which they have paid a Renewal Fee.  This
provision extends to this Warrant and all successor Warrants issuable hereunder.

This  provision is included  partially to permit  Holder(s) to coordinate  their
exercise of this  Warrant and sale of Warrant  Stock so as to minimize the Costs
and  Expenses  and  time of the  Company's  management  in  complying  with  the
provisions  of this  Warrant.  Payment of the  Renewal  Fee will  confirm no new
rights  upon the  Holder(s)  except to extend and renew the time  period  during
which Holder(s) may exercise existing rights under this Warrant.

         20.  Officer's  Certificate.  Whenever  the  Exercise  Price  shall  be
adjusted as required by the provisions of paragraph 6 hereof,  the Company shall
forthwith file in the custody of its Secretary or an Assistant  Secretary at its
principal  office,  and with its stock  transfer  agent,  if any,  an  officer's
certificate  showing the adjusted  Exercise Price  determined as herein provided
and setting forth in reasonable detail the facts requiring such adjustment. Each
such officer's  certificate  shall be made available at all reasonable times for
inspection  by the Holder(s) and the Company  shall,  forthwith  after each such
adjustment,  deliver a copy of such  certificate  to the  Holder(s)  and each of
them.  Unless  disputed in writing by the Holder hereof within thirty (30) days,
such certificate shall be conclusive as to the correctness of such adjustment.

         21.      General Notices to Warrant Holders.  So long as any portion of
this Warrant (or any successor Warrant) shall be outstanding and unexercised (a)
if the Company shall pay any dividend or make any  distribution  upon the Common
Stock or (b) if the  Company  shall  offer to the  holders  of Common  Stock for
subscription   or   purchase    by   them   any   shares   of   stock   of   any

                                      - 6 -









class or any other rights or (c) if any capital  reorganization  of the Company,
reclassification of the capital stock of the Company, consolidation or merger of
the Company with or into another corporation,  sale, lease or transfer of all or
substantially  all  of  the  property  and  assets  of the  Company  to  another
corporation  or engage in voluntary or involuntary  dissolution,  liquidation or
winding up of the company,  then the Company  shall cause to be delivered to the
Holder(s),  at least  thirty  (30) days  prior to the  relevant  date,  a notice
containing a brief  description  of the proposed  action and stating the date of
which a record is to be taken for the purpose of such dividend,  distribution of
rights,  or  such  reclassification,   reorganization,   consolidation,  merger,
conveyance,  lease, dissolution,  liquidation or winding up is to take place and
the date,  if any,  is to be fixed as of which the  holders  of Common  Stock of
record shall be entitled to exchange  their shares of Common Stock of record for
securities   or  other   property   deliverable   upon  such   reclassification,
reorganization,  consolidation,  merger, conveyance, dissolution, liquidation or
winding up.

         22.  Reclassification,   Reorganization  or  Merger.  In  case  of  any
reclassification,  capital  reorganization or other change of outstanding shares
of Common  Stock of the Company  (other than a change in par value,  or from par
value to no par  value,  or from no par value to par value) or as a result of an
issuance  of  Common  Stock by way of  dividend  or other  distribution  or of a
subdivision or  combination,  or in case of any  consolidation  or merger of the
Company with or into another  corporation (other than a merger with a subsidiary
in which  merger the Company is the  continuing  corporation  and which does not
result  in any  reclassification,  capital  reorganization  or other  change  of
outstanding  shares of Common Stock of the class  issuable upon exercise of this
Warrant)  or in case of any sale or  conveyance  to another  corporation  of the
property  of  the  Company  as an  entirety  or  substantially  as  an  entirety
(collectively,  a "Triggering  Event"), the Company shall use good faith efforts
to cause  effective  provision to be made so that the  Holder(s)  shall have the
right  thereafter  (and  shall  have  said  right  for the same  period  of time
remaining  on any  unexercised  portion of this  Warrant),  without  immediately
exercising this Warrant,  to purchase the kind and amount of shares of stock and
other  securities and property  receivable upon such  reclassification,  capital
reorganization or other change, consolidation, merger, sale or conveyance.

Any such provision  shall include  provision for  adjustments  which shall be as
nearly equivalent as may be practicable to the adjustments  provided for in this
Warrant.  However, in the event that the Company,  using its good faith efforts,
is unable to negotiate with the acquiring  entity the assumption of the Warrants
as provided in the preceding  portion of this paragraph,  then and in such event
this Warrant shall terminate,  to the extent not previously exercised, as of the
record date for such  transaction  upon and only upon  payment of a  "Retirement
Fee" to the Holder(s) hereof.

This Retirement Fee shall consist of the same kind of property  (including cash,
if any) to be received by the Company's  stockholders pursuant to the Triggering
Event (and, at parity with holders of Common Stock,  treated in accordance  with
all the other terms and conditions,

                                      - 7 -









including  timing and manner of payment for the purchase) and the Company herein
agrees that said Retirement Fee may be arrived at by private negotiation between
the  Company and the  Holder(s)  or may be  arbitrated  in  accordance  with the
provisions herein provided.

However,  the Company now and  specifically  agrees  that,  in the event of such
private negotiation, it shall accept an amount to be paid to the Holder(s) (as a
senior  obligation of the company in any such  transaction)  in  arbitration  or
negotiation which is not less than the lowest sum per Warrant which shall result
from application of any then applicable  Warrant  Valuation  Techniques (such as
the  Black-Scholes  Model)  which may be applied  to  publicly  traded  warrants
covering  publicly traded common stock, it being intended by the Company and the
Holder(s) that the Retirement Fee should reflect: (a) the difference between the
purchase and exercise price per share plus (b) a warrant premium factor commonly
determinable by the aforementioned models. Said Retirement Fee shall be a senior
obligation of the Company and shall be paid to Holder(s)  from first proceeds of
any sale or merger in cash unless otherwise  negotiated  between the Company and
Riker (the original Holder).

All subsequent  Holders shall agree,  by acceptance of assignment of any portion
of the Warrant covered by this certificate,  to be bound by this provision.  All
costs and expenses directly  attributable to the determination of the Retirement
Fee (including but not limited to the costs of outside appraisal(s)) shall be at
the expense of the Company.

The foregoing  provisions of this section 10 shall similarly apply to successive
reclassification,  consolidations,  mergers, sales, or conveyances. In the event
that in any such  capital  reorganization  or  reclassification,  consolidation,
merger, sale or conveyance, additional shares of Common Stock shall be issued in
exchange, conversion,  substitution or payment, in whole or in part, for or of a
security of the Company other than Common Stock, any such issue shall be treated
as an issue of Common Stock covered by the  provisions of paragraphs 3, 6, and 9
hereof,  with the amount of the  consideration  received  upon the issue thereof
being  determined by the Board of Directors of the Company in consultation  with
the  Company's  auditors,  such  determination  to be final and  binding  on the
Holder(s).

         23.      Transfer to Comply with the Securities Act of 1933.

                           (a)    This Warrant or the Warrant Stock or any other
security  issued or  issuable  upon  exercise  of this  Warrant may not be sold,
transferred  or otherwise  disposed of except to a person who, in the opinion of
counsel reasonably satisfactory to the Company, is a person to whom this Warrant
or such Warrant Stock may legally be transferred  pursuant to paragraph 4 hereof
without  registration and without the delivery of a current prospectus under the
Securities  Act with  respect  thereto;  and then only  against  receipt  by the
Company of an agreement  from such person to comply with the  provisions of this
paragraph 11 with respect to any resale or other disposition of such securities.


                                      - 8 -









                           (b)     The Company may cause the following legend to
be set  forth  on each  certificate  representing  Warrant  Stock  or any  other
security  issued or  issuable  upon  exercise of this  Warrant  not  theretofore
distributed to the public  pursuant to paragraphs  12, 13, or 14 hereof,  unless
counsel for the Company is of the opinion as to any such  certificate  that such
legend is unnecessary.


                           "The  securities  represented by this certificate may
not be offered for sale,  sold or otherwise  transferred  except  pursuant to an
effective  registration  statement under the Securities Act of 1933 (the "Act"),
or pursuant to an exemption from registration under the Act."

         24. Demand Registration. If at any time, after the next public offering
of registered  Common Shares of the Company (as  previously  covered and defined
herein) the Holder(s), or any of them, shall decide to sell or otherwise dispose
of  Warrant  Stock  then owned or to be owned  upon  intended  exercise  of this
Warrant by such Holder(s), such Holder(s) may give written notice to the Company
of the  proposed  disposition  (but,  if other than Riker,  must  simultaneously
notice  Riker),  specifying  the number of shares of Warrant Stock to be sold or
disposed  of and  requesting  that the Company  prepare and file a  registration
statement under the Securities Act of 1933, as amended (the  "Securities  Act"),
covering such Warrant Stock.

The Company  shall within 10 days  thereafter  give written  notice to the other
Holders of  Warrants  or  Warrant  Stock of such  request  and each of the other
Holders shall have the option for a period of 30 days after receipt by it (them)
of  notice  from the  Company  to  include  its  (their)  Warrant  Stock in such
registration  statement.  The  Company  shall use its best  efforts  to cause an
appropriate registration statement (the "Registration  Statement") covering such
Warrant  Stock to be filed with the  Securities  and  Exchange  Commission  (the
"Commission")  and to become effective as soon as reasonably  practicable and to
remain  effective until the completion of the  distribution of the Warrant Stock
to be offered or sold; provided,  however, that not more than once in any twelve
month period the Company  shall have the right to postpone for a period of up to
60 days any demand made  pursuant to this Warrant if the  underwriters  for such
offering  advise the  Company  in writing  that  market  conditions  make such a
postponement advisable to the Company.

The Holder(s) whose Warrant Stock is (are) included in a Registration  Statement
is (are) hereinafter referred to as the "Selling Shareholder(s)".

Each notice  delivered by a Selling  Shareholder(s)  to the Company  pursuant to
this  paragraph 12 shall  specify the Warrant  Stock  intended to be offered and
sold by such Selling Shareholder(s), express such Selling Shareholder(s) present
intent to offer such Common Shares for distribution, and contain the undertaking
of such Selling  Shareholder(s)  to provide all information and materials and to
take all action as may be required in order to permit the

                                      - 9 -









Company to comply with all applicable  requirements  of the Securities  Act, and
any rules and regulations promulgated thereunder,  and to obtain acceleration of
the effective date of such Registration Statement.

The  Company  shall  not be  obligated  to file  more  than  three  Registration
Statements  pursuant  to the  foregoing  provisions  of this  paragraph  12. The
Company  shall bear all of the Costs and  Expenses  (as  hereinafter  defined in
paragraph 20 hereof) of the first such registration.  The Selling Shareholder(s)
shall bear the costs and expenses of all further registrations  pursuant to this
paragraph 12. A demand for  registration  under this paragraph 12 will not count
as such until the Registration Statement has become effective.

         25. Shelf Registration By Original Holder. At any time and from time to
time during the term of this Warrant or its successors  (including  renewals and
extensions as provided for herein)  Anthony Riker,  Ltd. and only Anthony Riker,
Ltd. (as the original Holder hereof), may demand (and actually expects) that the
Company  will  file  a  Registration  Statement  with  the  Commission  for  the
registration of underlying  shares issuable upon exercise of this Warrant or any
part  thereof,  whether or not said Warrant has, in the interim been assigned or
re-assigned  to other parties.  In this event,  the Company shall pay all of the
Costs and Expenses of said Registration for each such demand.

Once filed, the Company shall be obligated to continue this "shelf registration"
for the maximum time allowable under the then relevant regulations,  at its sole
expense.

         26.      Procedure  for  Demand  Registration.  In  connection with the
filing of a  Registration  Statement  pursuant to  paragraph  12 hereof,  and in
supplementation  and not in limitation of the  provisions  thereof,  the Company
shall:

                  (a) Notify the Selling  Shareholder(s) as to the filing of the
Registration Statement and of all amendments or supplements thereto filed thirty
(30) days prior to the effective date of said Registration Statement;

                  (b)  Notify the  Selling  Shareholder(s),  promptly  after the
Company  shall  receive  notice  thereof,  of the time  when  said  Registration
Statement became effective or when any amendment or supplement to any prospectus
forming a part of said Registration Statement has been filed;

                  (c)      Notify  the  Selling  Shareholder(s)  promptly of any
request by the Commission for the amending or supplementing of such Registration
Statement or prospectus or for additional information;

                  (d)      Prepare  and  promptly  file with the Commission, and
promptly notify the Selling  Shareholder(s)  of the filing of, and amendments or
supplements to such Registration

                                     - 10 -









Statement  or  prospectus  as may be  necessary  to correct  any  statements  or
omissions  if, at any time when a  prospectus  relating to the Warrant  Stock is
required to be delivered under the Securities Act, any event with respect to the
Company  shall have  occurred  as a result of which any such  prospectus  or any
other  prospectus  as then in effect  would  include  an untrue  statement  of a
material  fact or  omit  to  state  any  material  fact  necessary  to make  the
statements therein not misleading; and, in prepare and file with the Commission,
promptly upon the Selling  Shareholder(s)'  written  request,  any amendments or
supplements to such Registration Statement or prospectus which may be reasonably
necessary or advisable in connection with the distribution of the Warrant Stock;

                  (e)   Prepare   promptly   upon   request   of   the   Selling
Shareholder(s) or any underwriters for the Selling Shareholder(s) such amendment
or amendments to such Registration Statement and such prospectus or prospectuses
as may be reasonably  necessary to permit  compliance  with the  requirements of
Section 10 (a) (3) of the Securities Act;

                  (f) Advise the Selling Shareholders promptly after the Company
shall  receive  notice or obtain  knowledge of the issuance of any stop order by
the Commission  suspending the effectiveness of any such Registration  Statement
or amendment  thereto or of the  initiation or threatening of any proceeding for
that  purpose,  and promptly use its best efforts to prevent the issuance of any
stop order or obtain its withdrawal promptly if such stop order would be issued;

                  (g) Use its best  efforts  to  qualify  as soon as  reasonably
practicable  the Warrant Stock for sale under the securities or blue-sky laws of
such states and  jurisdictions  within the United  States as shall be reasonably
requested by the Selling Shareholder(s);  provided that the Company shall not be
required in  connection  therewith  or as a  condition  thereto to qualify to do
business,  to become  subject  to  taxation  or to file a consent  to service of
process generally in any of the aforesaid states or jurisdiction;

                  (h) Furnish the Selling Shareholder(s),  as soon as available,
copies of any Registration  Statement and each preliminary or final  prospectus,
or supplement or amendment required to be prepared pursuant thereto, all in such
quantities  as the  Selling  Shareholder(s)  may  from  time to time  reasonably
request, and;

                  (i) If requested by the Selling Shareholder(s),  enter into an
agreement with the underwriters of the Warrant Stock being registered containing
customary provisions and reflecting the foregoing.

         27.  Incidental  Registration.  Other than as covering in  paragraph 13
hereof,  if at any time the Company  subsequent  to the next public  offering of
registered  Common  Shares  of  the  Company,  shall  propose  the  filing  of a
Registration  Statement on an appropriate  form under the Securities Act for the
registration  of  any  securities  of the  Company,  other  than a  registration
statement on Form S-4 or S-8 or any equivalent  form of  registration  statement
then in effect,

                                     - 11 -









then the Company shall give the Holder(s)  notice of such proposed  registration
and shall include in any Registration  Statement relating to such securities all
or a portion of the Warrant  Stock then owned or to be owned by such  Holder(s),
which such  Holder(s)  shall request (such  Holder(s) to be considered  "Selling
Shareholder(s)"),  by notice given by such Selling Shareholder(s) to the Company
within 15 business  days after the giving of such notice by the Company,  within
15  business  days  after the  giving of such  notice by the  Company,  to be so
included.  In the event of the  inclusion  of  Warrant  Stock  pursuant  to this
paragraph   15,  the  Company   shall  bear  the  Costs  and  Expenses  of  such
registration;  provided,  however that the Selling  Shareholder(s) shall pay the
fees and  disbursements of their own counsel and, pro-rata based upon the number
of shares of Warrant Stock included  therein as these relate to the total number
of Common Shares to be offered or sold, the Securities Act registration fees and
underwriters  discounts and  compensation  attributable to the inclusion of such
Warrant Stock; and, provided further,  however, that amounts to which any person
or entity  shall become  entitled  pursuant to this  sentence  shall not include
amounts which may become payable pursuant to paragraphs 16 or 17 hereof. Nothing
in this  paragraph  15 shall  require  the  registration  of Warrant  Stock in a
Registration  Statement  relating  solely to (a)  securities to be issued by the
Company in connection with the acquisition of the stock or the assets of another
corporation,  or the merger or consolidation of any other corporation by or with
the  Company  or  any  of  its  subsidiaries,  or an  exchange  offer  with  any
corporation,  (b) securities to be offered to the then existing security holders
of the Company,  or (c) securities to be offered to employees of the Company. In
the  event  the   distribution  of  securities  of  the  Company  covered  by  a
Registration  Statement  referred to in this paragraph 15 is to be underwritten,
then the Company's  obligation to include  Warrant Stock in such a  Registration
Statement  shall be  subject,  at the option of the  Company,  to the  following
further conditions:

                  (a)  The   distribution   for  the   account  of  the  Selling
Shareholders shall be underwritten by the same underwriters who are underwriting
the  distribution  of the  securities  for the account of the Company and/or any
other persons whose  securities are covered by such  Registration  Statement and
the Selling  Shareholder(s) shall enter into an agreement with such underwriters
containing customary provisions.

                  (b)  If  the  Selling   Shareholders   are   included  in  the
Registration  Statement and if the underwriting  agreement entered into with the
aforesaid  underwriters contains restrictions upon the sale of securities of the
Company,  other than the  securities  which are to be included  in the  proposed
distribution,  for a period not exceeding 90 days from the effective date of the
Registration Statement, then such restrictions shall be binding upon the Selling
Shareholder(s) with respect to any Warrant Stock not covered by the Registration
Statement and, if requested by the underwriter, the Selling Shareholder(s) shall
enter into a written agreement to that effect.

                  (c) If the  underwriters  shall state in writing that they are
unwilling to include any or all of the Selling  Shareholder(s)  Warrant Stock in
the proposed underwriting because such inclusion would materially interfere with
the orderly sale and distribution of the securities being

                                     - 12 -









offered by the Company, then the number of the Selling Shareholder(s)' shares of
Warrant  Stock to be  included  shall be  reduced  pro rata on the  basis of the
number of shares of Warrant  Stock  originally  requested to be included by such
Selling  Shareholder(s),  or there  shall be no  inclusion  of the shares of the
Selling  Shareholder(s) in the Registration Statement not proposed distribution,
in accordance with such statement by the underwriters.

                  However,  if in such an event,  the Holder(s) hereof shall not
be able to include at least fifty percent (50%) of the Warrant Stock  originally
requested to be included,  then the Company  shall agree to pay all of the Costs
and Expenses of a Shelf Registration to be filed at a later date.

         28.  Indemnification  by the Company.  The Company shall  indemnify and
hold  harmless  each Selling  Shareholder,  any  underwriter  (as defined in the
Securities  Act) for the  Selling  Shareholder,  and each  person,  if any,  who
controls the Selling  Shareholder or such underwriter  within the meaning of the
Securities Act (but, in the case of an underwriter or a controlling person, only
if such under writer or controlling  person indemnifies the persons mentioned in
paragraph  17(b)  hereof in the manner set forth  therein)  against  any losses,
claims,  damages  or  liabilities,  joint  or  several,  to  which  the  Selling
Shareholder or any such underwriter or controlling person becomes subject, under
the  Securities  Act or otherwise,  insofar as such losses,  claims,  damages or
liabilities (or actions in respect  thereof) are caused by any untrue  statement
or alleged untrue  statement of any material fact  contained in any  preliminary
prospectus (if used prior to the effective date of the Registration  Statement),
or contained, on the effective date thereof, in any Registration Statement under
which the Selling  Shareholder(s)' shares of Warrant Stock were registered under
the  Securities  Act, the  prospectus  contained  therein,  or any  amendment or
supplement  thereto,  arising  out of or based  upon  the  omission  or  alleged
omission  to state  therein a material  fact  required  to be stated  therein or
necessary  to make the  statements  therein not  misleading;  the Company  shall
reimburse  the  Selling  Shareholder,  or any such  underwriter  or  controlling
person,  in connection  with  investigating  or defending any such loss,  claim,
damage,  liability or action;  provided,  however, that the Company shall not be
liable to any such  person in any such case to the  extent  that any such  loss,
claim,  damage,  liability  or action  arises out of or is based upon any untrue
statement or alleged  untrue  statement or omission or alleged  omission made in
reliance upon and in  conformity  with  information  furnished in writing to the
Company  by  such  person  expressly  for  inclusion  in any  of  the  foregoing
documents.

         29.    Indemnification by Selling Shareholders. Each individual Selling
Shareholder shall:

                  (a)  Furnish  to  the  Company  in  writing  all   information
concerning  it and  it's  holdings  of  securities  of the  Company  as shall be
required  in  connection  with the  preparation  and filing of any  Registration
Statement covering any Shares of Warrant Stock.


                                     - 13 -









                  (b)  Indemnify  and hold  harmless  the  Company,  each of its
directors,  each of its officers who has signed a Registration  Statement,  each
person,  if any, who controls the Company  within the meaning of the  Securities
Act and any  underwriter  (as defined in the  Securities  Act) for the  Company,
against any losses,  claims,  damages or liabilities to which any such director,
officer,  controlling  person  or  underwriter  may  become  subject  under  the
Securities  Act or  otherwise,  insofar  as such  losses,  claims,  damages,  or
liabilities (or actions in respect  therefor) are caused by any untrue statement
of any material fact contained in any  preliminary  prospectus (if used prior to
the effective date of the Registration Statement) or contained, on the effective
date  thereof,   in  any   Registration   Statement   under  which  the  Selling
Shareholder's   securities  were  registered   under  the  Securities  Act,  the
prospectus contained therein, or any amendment or supplement thereto, or arising
out of or based upon the omission to state  therein a material  fact required to
be stated therein or necessary to make the statement therein not misleading;  in
each case to the extent,  but only to the extent,  that such untrue statement or
omission was made in reliance upon and in conformity with information  furnished
to the Company in writing by the Selling Shareholder  expressly for inclusion in
any of the foregoing documents,  and the Selling Shareholder shall reimburse the
Company and any such director,  officer,  controlling  person or underwriter for
any legal or other  expenses  reasonably  incurred  by the  Company  or any such
director,  officer,   controlling  person  or  underwriter  in  connection  with
investigating or defending any such loss, claim, damage, liability or action.

         30. Notification by Selling  Shareholders.  The Selling  Shareholder(s)
and each other person indemnified  pursuant to paragraph 16 hereof shall, in the
event it receives  notice of the  commencement of any action against it which is
based upon an alleged  act or omission  which,  if proven,  would  result in the
Company having to indemnify it pursuant to paragraph 16 hereof,  promptly notify
the  Company,  in  writing,  of the  commencement  of such action and permit the
Company,  if the Company so notifies the Selling  Shareholder(s)  within 10 days
after  receipt by the Company of notice of the  commencement  of the action,  to
participate in and to assume the defense of such action with counsel  reasonably
satisfactory to the Selling  Shareholder(s) or such other indemnified person, as
the case may be. The omission to notify the Company promptly of the commencement
of any such action  shall not relieve the Company of any  liability to indemnify
the Selling Shareholder(s) or such other indemnified person, as the case may be,
under  paragraph 16 hereof,  except to the extent that the Company  shall suffer
any loss by reason of such failure to give notice which it may have  pursuant to
the rights conveyed to the Holders) in this Warrant.

         31.  Notification by the Company to Selling  Shareholders.  The Company
agrees that, in the event it receives  notice of the  commencement of any action
against it which is based  upon an alleged  act or  omission  which,  if proven,
would result in a Selling  Shareholder  having to indemnify the Company pursuant
to  paragraph  17(b)  hereof,  the  Company  will  promptly  notify the  Selling
Shareholder in writing of the commencement of such action and permit the Selling
Shareholder,  if the Selling  Shareholder so notifies the Company within 10 days
after receipt by the Selling  Shareholder of notice of the  commencement  of the
action, to participate

                                     - 14 -









in and assume the defense of such action with counsel reasonably satisfactory to
the  Company.  The  omission to notify the Selling  Shareholder  promptly of the
commencement  of any such action  shall not relieve the Selling  Shareholder  of
liability to indemnify the Company under paragraph  17(b) hereof,  except to the
extent  that the  Selling  Shareholder  shall  suffer any loss by reason of such
failure to give  notice,  and shall not relieve the Selling  Shareholder  of any
other  liabilities  which it may have under this or any other  agreement then in
effect between the Company and the Selling Shareholder.

         32. Costs and Expenses.  As used in this Warrant,  "Costs and Expenses"
shall  include  all  of the  costs  and  expenses  relating  to  the  respective
Registration  Statement(s) involved,  including but not limited to, registration
fees, filing and qualification  fees,  blue-sky  expenses,  printing and mailing
expenses, fees and expenses of Company's counsel and, if/when appropriate,  fees
and  expenses of counsel  designated  by the Selling  Shareholder(s)  (provided,
however, that no more than one such counsel for the Selling Shareholder(s) shall
be designated on any occasion).

         33.      Addresses.  All  notices,   certificates,   waiver  and  other
communications required or permitted to be given hereunder to any of the parties
by any other party shall be in writing and shall be delivered personally or sent
by next day delivery  service or registered or certified mail,  postage prepaid,
as follows:

                       (a)      If to the Company, addressed to:

                                        Cheung Laboratories, Inc.
                                        10220-I Old Columbia Road
                                        Columbia, MD 21046-1705
                                        Attention: Mr. John Mon, General Manager

                       (b)      If to a Holder,  addressed to the address of
                                each  such  Holder  as  shall,  from time to
                                time,  appear on the  records of the Company
                                or those of the Company's  transfer agent as
                                may be the case.

Any notice  delivered  personally or sent by next day delivery  service shall be
deemed to have been given on the date so delivered,  and any notice delivered by
registered  or certified  mail shall be deemed to have been given on the date it
is received.  Any party may change the address to which notices hereunder are to
be sent by  giving  written  notice  of such  change of  address  in the  manner
provided for giving notice.

         34.  Waiver.  No waiver by a Holder  of any  right  hereunder  shall be
effective  unless it is in writing  which  specifically  refers to the provision
hereof under which such right  arises,  and no such waiver  shall  operate or be
construed  as a  waiver  of any  subsequent  breach,  whether  of a  similar  or
dissimilar nature.

                                     - 15 -










         35.  Entire  Warrant.  This  Warrant  may be amended,  supplemented  or
modified only by a written instrument executed by the Company and the Holder(s).
While separate executed letters proposing and/or accepting  amendment(s) sent to
the Company by the Holder(s) or to the Holder(s) by the Company  shall,  for the
purposes  of  this  paragraph  23,  constitute  a  valid  agreement  as  to  the
relationship  then created by and between the Company and the individual  Holder
in question, only Anthony Riker, Ltd. (as the original Holder) may, by agreement
with the Company,  bind all subsequent  Holders to one single written instrument
which  shall  serve to amend the terms and  conditions  hereof,  and to which by
their  acceptance  of an  assignment  of  any  portion  of  this  Warrant,  they
implicitly agree to be bound by.

         36.  Applicable  Law.  This Warrant and the legal  relations  among the
parties  hereto  shall be  governed  by and  construed  in  accordance  with the
substantive laws of the State of Illinois applicable to contracts made and to be
performed  therein  without  giving effect to the principles of conflict of laws
thereof.

         37.  Appraisal  Rights.  In the  event  that  the  Company's  board  of
directors  has not  approved  and the Company has not  executed  the next public
offering of the Company's  Common Stock prior to the second  anniversary  of the
issuance of this Warrant,  a majority in interest of the Holder(s) may, in their
sole discretion and at any time thereafter, give notice to the Company that they
wish to avail  themselves of Appraisal Rights rather than force the Company into
filing a  Registration  Statement  against  its will by  demanding  registration
hereunder.

Should this event occur,  the Company and the  Holder(s)  shall meet together to
appraise  the value of the  Warrant(s)  and shall  proceed  to do so in the same
fashion  and  spirit as is  provided  for in the first  paragraph  of section 10
hereof in determining a Retirement  Fee to be paid the Holders upon  termination
of the Warrant(s).

         38. Binding Effect.  The provisions  contained in this Warrant shall be
binding  upon and inure to the  benefit of the Company and the Holders and their
respective successors,  permitted assigns, heirs and legal representatives.  Any
person to whom all or a part of a Holder's rights and obligations  hereunder are
assigned shall fulfill such of the assigning Holder's  obligations  hereunder as
have been  assigned,  and shall be  entitled  to all of the rights and  benefits
hereunder to the extent that such person has assumed such Holder's  obligations.
The rights and powers of each  successive  Holder  hereunder are granted to such
Holder  as an owner  of  Warrants  or  Warrant  Stock  as the  case may be.  Any
subsequent  Holder whether becoming such by transfer,  assignment,  operation of
law or  otherwise,  shall have the same rights and powers which a Holder  owning
the same number of Warrants  and/or  Warrant Stock has  hereunder,  and shall be
entitled to  exercise  such  rights and powers  until such Holder or  subsequent
Holder no longer owns any Warrants or Warrant Stock.  Except as provided in this
paragraph  26, this  Warrant  does not  create,  and shall not be  construed  as
creating, any rights enforceable by any person not a Holder.


                                     - 16 -









         39. Validity. If any term,  provision,  covenant or restriction of this
Warrant is held by a court of  competent  jurisdiction  to be  invalid,  void or
unenforceable,  the  Company  agrees  that such  term,  provision,  covenant  or
restriction  shall be  reformed  to the  extent  possible  consistent  with such
judicial holding to reflect the intent of the Company and the original Holder as
stated  herein  and  the  remainder  of the  terms,  provisions,  covenants  and
restrictions  of this Warrant shall remain in full force and effect and shall in
no way be  affected,  impaired  or  invalidated.  It is  hereby  stipulated  and
declared to be the  intention  of the Company that it would have  executed  this
Warrant  including the remaining terms,  provisions,  covenants and restrictions
without including any of such provision of term which may be hereafter  declared
invalid,  void or unenforceable.  This Warrant (Serial Number:  0100) is granted
and sold on this 1st day of June, 1996.

                                             Cheung Laboratories, Inc.

                                             By:______________________________
                                              Augustine Cheung, President
                                  PURCHASE FORM

                                                               Dated: __________

Cheung Laboratories, Inc.
10220-1 Old Columbia Road
Columbia, MD  21046-1705

Attention: Mr. John Mon, General Manager


Attached herewith is Cheung Laboratories,  Inc.'s Common Stock Purchase Warrant,
Serial Number:  __________,  giving the Holder the right to purchase  __________
shares.

I/We  hereby  notify  you that  I/we are  exercising  my/our  right to  purchase
__________  shares  and have  enclosed  herewith  my/our  check in the amount of
$__________,  representing  the  aggregate  exercise  price of said  shares.  If
transfer  taxes  (federal or state) are  applicable  to this  transaction,  I/we
understand that you will be billing me/us for said taxes,  which I/we agree will
be  promptly  remitted  to you  within  ten  (10)  days  of  my/our  receipt  of
notification.

I/We hereby  state that the shares being  purchased  are to be held by me/us for
investment purposes and not with a view to sale, except pursuant to an effective
registration statement or an exemption therefrom.


                                     - 17 -








Please cancel the enclosed Warrant and, if applicable,  send me/us a Warrant, in
partial  substitution  on identical  terms,  for the remaining  shares not being
purchased pursuant to this notification.



Yours very truly,


Holder of Warrant, Serial Number __________


_______________________
_______________________
_______________________
_______________________



                                     - 18 -




Microfocus  Medical  Technologies  Canada Inc.,  formed  pursuant to the Ontario
Business Corporations Act June 16, 1993.

Cheung Laboratories International, Ltd.,  was formed under the laws of Hong Kong
in 1985.




We hereby consent to the inclusion in Form 10-K for fiscal year ended  September
30,  1996 of our  report  dated  November  1,  1996  relating  to the  financial
statements of Cheung Laboratories, Inc.

STEGMAN & COMPANY



December 9, 1996
Towson, Maryland



 


5 YEAR SEP-30-1996 OCT-30-1996 SEP-30-1996 246931 0 175105 20770 270952 705957 238769 205766 9321600 1352726 0 0 0 412063 6343811 9321600 74006 74006 64406 64406 1432382 0 85506 (19334711) 0 (1933471) 0 0 0 (1933471) (0.049) (0.049)