ISONICS CORP
8-K, 1998-08-05
CHEMICALS & ALLIED PRODUCTS
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                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D. C. 20549

                                    FORM 8-K

                                 CURRENT REPORT

                     Pursuant to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934

        Date of Report (Date of earliest event reported): August 5, 1998

                               ISONICS CORPORATION
             (Exact name of registrant as specified in its charter)

                                   California
                 (State or other jurisdiction of incorporation)

            001-12531                                77-0338561
     (Commission File No.)                (IRS Employer Identification No.)

                         4010 Moorpark Avenue, Suite 119
                           San Jose, California 95117
              (Address of principal executive offices and zip code)

       Registrant's telephone number, including area code: (408) 260-0155

                                        1



<PAGE>


This Current Report on Form 8-K contains forward looking statements that involve
risks and uncertainties  relating to the acquisition by Isonics  Corporation,  a
California corporation ("Isonics"), of Chemotrade GmbH, a privately held company
("Chemotrade"),  including  the  risks:  inherent  in  acquiring  a  company  in
Chemotrade's  industry (e.g.  assumption of known and unknown liabilities); that
the synergies expected to result from the acquisition  described below might not
occur as  anticipated;  and that  management's  attention might be diverted from
day-to-day  business  activities.  Actual  results and  developments  may differ
materially  from those described in this Current  Report.  For more  information
about Isonics and risks relating to investing in Isonics, refer to Isonics' most
recent  reports  on Form  10-QSB and  Registration  Statement  on Form SB-2,  as
amended, Registration No. 333-13289.

Item 2.  Acquisition or Disposition of Assets.

On  July  21,  1998,   Isonics'   wholly  owned   German   subsidiary,   Des-Dur
Vermogensverwaltungs GmbH, acquired Chemotrade through the acquisition of all of
the  outstanding  capital  stock of  Chemotrade  from Mr.  Helmut  Swyen and Mr.
Herbert Hegener (the "Sellers").  The acquisition was accomplished pursuant to a
Sale and Purchase  Agreement dated as of May 29, 1998 and amended as of July 15,
1998 (the "Purchase Agreement").  In exchange for all of the outstanding capital
stock of  Chemotrade  on July 21, 1998,  Isonics paid  $758,700 in cash,  issued
357,730 shares of its Common Stock and issued two notes to the Sellers,  one for
$924,000  bearing  interest at 2% per month due September  15, 1998,  secured by
certain  accounts  receivable and a second note for $833,000 bearing interest at
10% per annum,  due June 1, 1999.  The shares of Isonics  Common Stock issued in
the acquisition were issued pursuant to Regulation S under the Securities Act of
1933,  as amended.  Payment of the second  note is  contingent  upon  Chemotrade
meeting minimum pretax earnings as defined in the Purchase  Agreement during the
sixteen  months  ending April 30, 1999 and twelve  months ending April 30, 2000.
The Sellers will receive additional consideration of $278,000 in cash if minimum
pretax  earnings as defined in the Purchase  Agreement are met during the twelve
months  ending  April 30,  2001.  The  purchase  price was  arrived  at  through
arms-length  negotiations.  The total  number of shares of Isonics  Common Stock
issued in connection with the acquisition are being held in escrow to secure the
obligations  of  Chemotrade  to  indemnify  Isonics  for  any  breaches  of  the
representations  and  warranties  of  Chemotrade  and to repay any  shortfall of
earnings  as  defined  for the  periods  ending  April 30,  1999 and  2000.  The
acquisition will be accounted for as a purchase.

In connection  with the purchase of  Chemotrade,  Isonics also acquired  seventy
five percent of the  outstanding  capital  stock of  Chemotrade  GmbH,  Leipzig.
Chemotrade is a supplier of stable and radioactive  isotopes.  Isonics currently
intends to maintain  Chemotrade as a wholly-owned  subsidiary and for Chemotrade
to continue to conduct its business as historically conducted.

A copy of the press release  announcing the signing of the Purchase Agreement is
attached hereto as Exhibit 99.1 and incorporated by reference  herein. A copy of
the press release  announcing the  consummation  of the  acquisition is attached
hereto as Exhibit 99.2 and incorporated by reference herein.

Item 7.  Financial Statements, Pro Forma Financial Information and Exhibits.

             (a)   Financial Statements of Businesses Acquired.

              The  Registrant  believes that it would be  impractical to provide
              the required financial  statements at the time this Report on Form
              8-K is  filed.  The  Registrant  intends  to file  such  financial
              information as an amendment to this Form 8-K within 60 days of the
              date hereof.

              (b) Pro Forma Financial Information

              The  Registrant  believes that it would be  impractical to provide
              the  required  pro forma  financial  information  at the time this
              Report on Form 8-K is filed.  The Registrant  intends to file such
              financial  information  as an amendment to this Form 8-K within 60
              days of the date hereof.


<PAGE>

             (c)   Exhibits.

  Exhibit No.         Description
  -----------         -----------

     2.1       Sale and Purchase  Agreement,  dated as of May 29, 1998,  between
               Isonics  Corporation,  a  California  corporation,   and  Herbert
               Hegener and Helmut Swyen. Disclosure Schedule has been omitted as
               permitted pursuant to the rules and regulations of the Securities
               and   Exchange   Commission   ("SEC"),   but  will  be  furnished
               supplementally to the SEC upon request).

     2.2       Purchase  Agreement,  dated as of July 15, 1998,  between Isonics
               Corporation,  a California  corporation,  and Herbert Hegener and
               Helmut Swyen.

     99.1      Press release announcing the execution of the Purchase Agreement.

     99.2      Press release announcing the consummation of the acquisition.


                                        2


<PAGE>

                                   SIGNATURES

Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned hereunto duly authorized.

                               ISONICS CORPORATION

     Dated: August 5, 1998                       By:   /s/ James Alexander
            --------------                       ---   -------------------

                                                           James Alexander
                                                           President and Chief
                                                           Executive Officer

                                        4



<PAGE>

                                  EXHIBIT INDEX

 Exhibit No.       Description
 -----------       -----------

     2.1       Sale and Purchase  Agreement,  dated as of May 29, 1998,  between
               Isonics  Corporation,  a  California  corporation,   and  Herbert
               Hegener and Helmut Swyen. Disclosure Schedule has been omitted as
               permitted pursuant to the rules and regulations of the Securities
               and   Exchange   Commission   ("SEC"),   but  will  be  furnished
               supplementally to the SEC upon request).

     2.2       Purchase  Agreement,  dated as of July 15, 1998,  between Isonics
               Corporation,  a California  corporation,  and Herbert Hegener and
               Helmut Swyen.

     99.1      Press release announcing the execution of the Purchase Agreement.

     99.2      Press release announcing the consummation of the acquisition.



                                                                     Exhibit 2.1

                           Sale and Purchase Agreement

by and among

Des-Dur Vermogensverwaltungs GmbH, Hallbergmoos
c/o Pollath + Partners
Lilienthalstrasse 7, 85399 Hallbergmoos
("Purchaser")

Isonics Corporation 
4010 Moorpark Avenue, Suite 119 
San Jose CA 95117, U.S.A.
("Isonics")

and

Herbert Hegener,
Sebastiansweg 20
40231 Dusseldorf
("Seller 1")

Helmut Swyen
Am Oberen Feld 105
40668 Meerbusch
("Seller 2").


                                      ss. 1
                                     Company

1.   The following  company is registered  with the  commercial  register of the
     Lower Court Dusseldorf in section B under number 27949:

                    Chemotrade Chemiehandelsgesellschaft mbH



<PAGE>
                                                                               2
                                 ("Chemotrade").

2.   Chemotrade has its statutory seat in Dusseldorf.

3.   Its fully paid-up  registered  share  capital  amounts to DM 300,000 and is
     divided into two shares each with a stated value of DM 150,000.  The Seller
     1 holds one share with a stated  value of DM 150,000 and the Seller 2 holds
     the other share with a stated value of DM 150,000.


                                      ss. 2
                                  Subsidiaries

1.   The following  company is registered  with the  commercial  register of the
     Lower Court Leipzig in section B number 6778:

                Chemotrade Chemiehandelsgesellschaft mbH Leipzig
                             ("Chemotrade Leipzig").

2.   Chemotrade Leipzig has its statutory seat in Leipzig.

3.   Its fully  paid-up  registered  share  capital  amounts to DM 50,000 and is
     divided  into two  shares  with a stated  value of DM 37,500 and DM 12,500,
     resp. Chemotrade holds the share with the stated value of DM 37,500 and Dr.
     Gerd Asperger,  Braunschweiger  Strasse 43, 04157 Leipzig,  holds the share
     with a stated value of DM 12,500.

4.   The following  company is registered  with the  commercial  register of the
     Lower Court Berlin-Charlottenburg in section B under number 46 572:

                     IUT Institut fur Umwelttechnologie GmbH
                                    ("IUT").


<PAGE>
                                                                              3

5.   IUT has its statutory seat in Berlin and a fully paid-up  registered  share
     capital of DM 100,000.  Chemotrade  holds a share with a stated value of DM
     6,300.


                                      ss. 3
                                    Business

Chemotrade - directly and indirectly through its subsidiary Chemotrade Leipzig -
is engaged in trading with stable and radioactive isotopes,  radioactive sources
and transuranium elements. Its subsidiary IUT specializes in isotope technology,
sensor  development,  plasma  and  laser  technology,  technology  of  radiation
measurement and analytical  chemistry  (labeling  carbon 14, several  analytical
services and development of measuring  methods and their technical  equipment to
determine  environmental toxic compounds and of technologies to reduce pollution
in water and air).


                                      ss. 4
                       Subject-Matter of Sale and Purchase

1.   Subject to the terms and conditions  hereof,  the Seller 1 and the Seller 2
     hereby sell to the Purchaser,  and the Purchaser  hereby purchases from the
     Seller 1 and the Seller 2, the shares in the  registered  share  capital of
     Chemotrade as set forth in ss. 1 subsection 3 hereof (the "Chemotrade Share
     1" and the "Chemotrade Share 2", and jointly the "Chemotrade Shares").

2.   The  Chemotrade  Shares  are sold by the  Seller 1 and the  Seller 2 to the
     Purchaser  with  all  rights  and  obligations  to  be  derived  therefrom,
     including the right to all profits of Chemotrade  realized after January 1,
     1998,  0.00 hrs.,  and all dividend  rights as from that point in time. The
     Seller 1 and the  Seller 2 shall be  entitled  to a  dividend  distribution
     equal to the  aggregate  of the annual  surplus  for the  fiscal  year 1997
     ("Jahresuberschuss  1997") and profits  brought forward from previous years
     ("Gewinnvortrag") (the "1997 Dividend Distribution").



<PAGE>
                                                                               4


3.   The  Seller  1 and the  Seller  2  hereby  sell to the  Purchaser,  and the
     Purchaser  hereby  purchases from the Seller 1 and the Seller 2, all rights
     and claims,  if any,  of the Seller 1 and the Seller 2 against  Chemotrade,
     Chemotrade Leipzig, and/or IUT, and in or to tangible and intangible assets
     used in the  Business,  except as  expressly  set forth  otherwise  in this
     Agreement.


<PAGE>
                                                                               5
                                      ss. 5
                 General Provisions concerning Sale and Purchase

1.   In waiving all  requirements as to form and notice for the invitation,  the
     Seller 1 and the Seller 2 hereby convene a

                              Shareholders' Meeting
                                  of Chemotrade

     an unanimously resolve as follows:

     We hereby agree to the sale and transfer of the Chemotrade  Shares pursuant
     to this Agreement.

     The Seller 1 and the Seller 2, in their  capacity as managing  directors of
     Chemotrade, do hereby confirm, on behalf of Chemotrade, this consent to the
     Purchaser.

2.   The  Seller 1 and the  Seller  2,  acting  in their  capacity  as  managing
     directors of Chemotrade,  do hereby agree, on behalf of Chemotrade,  to the
     sale and transfer of the Chemotrade Shares pursuant to this Agreement.

3.   Irrespective of the consent pursuant to subsections 1 and 2 above,  each of
     the Seller 1 and Seller 2 hereby agrees to all agreements and  declarations
     made by the other Seller in this  Agreement  and hereby waives all options,
     pre-emptive  rights and rights of first refusal as well as all other rights
     and claims of any type whatsoever  which this Seller may have in respect of
     the Chemotrade Shares,  rights and claims sold by the other Seller pursuant
     to ss. 4  subsection  3 hereof.  The Seller 1 and the  Seller 2,  acting in
     their capacity as managing directors of Chemotrade,  do hereby declare,  on
     behalf of Chemotrade, a respective waiver.


<PAGE>
                                                                               6
                                      ss. 6
                        Consummation of the Transactions

1.   The  transfer of the  Chemotrade  shares,  rights and claims sold  pursuant
     toss.4 hereof and the payment of the Base Cash  Consideration  and the Base
     In Kind Consideration,  each as hereinafter defined,  (the "Closing") shall
     take place at such time and place as  mutually  agreed  between the parties
     hereto,  but no later than June 30, 1998 or August 31, 1998,  respectively,
     if the period for Closing has been extended  pursuant to para 3 (c) hereof.
     The  Chemotrade  Shares shall be assigned to the  Purchaser  subject to the
     condition  precedent   ("aufschiebende   Bedingung")  that  the  Base  Cash
     Consideration  and the Base In Kind  Consideration  have  been  paid as set
     forth inss.9 below. The Seller 1 and the Seller 2 shall instruct the acting
     notary to confirm  receipt of the Base Cash  Consideration  and the Base In
     Kind Consideration.

2.   At the Closing,  all parties hereto  undertake to enter in proper form into
     all agreements, execute all documents, give and accept all declarations and
     take all measures  which will be necessary in order to  consummate,  and to
     comply fully with the purpose of, this Agreement to the extent to which the
     arrangements in this Agreement do not, by their nature,  relate to the time
     period after the Closing.

3.   The  Seller 1 and the  Seller 2 on the one  hand and the  Purchaser  on the
     other shall have the right to rescind this Agreement, if

     (a) on the date of the Closing the  respective  other side has not complied
         with its  obligations in this  Agreement  concerning the time until the
         Closing to any material degree and does not offer to remedy its failure
         to comply in a form which would  constitute a  satisfactory  compliance
         with the respective obligations, or

<PAGE>
                                                                               7
 
     (b) on the date of Closing  the  consummation  of the  transactions  agreed
         herein by the respective side would  constitute a violation of legal or
         administrative  provisions or instructions,  or legal  proceedings have
         been  instituted  with  the  aim to  prevent  the  consummation  of the
         transactions agreed herein to any material degree, or

     (c) the  Purchaser  did not obtain on or before June 30, 1998  financing of
         the Base Cash Consideration as hereinafter  defined at reasonable terms
         and conditions;  provided,  however, that such period shall be extended
         until August 31, 1998 against  payment of a portion of the  Installment
         Cash  Consideration  (as  defined  in ss. 9  subsection  1 below) in an
         amount of DM 1,000,000 by the  Purchaser to the Seller 1 and the Seller
         2 as joint creditors.

4.   The  Seller 1 and the  Seller  2 can  exercise  their  rights  pursuant  to
     subsection 3 hereof only jointly and uniformly.

5.   Subject  to the  proviso  in this  clause,  if either  side  rescinds  this
     Agreement  pursuant to subsection 3 hereof,  all obligations of the parties
     hereunder shall terminate without any liability (for performance,  damages,
     reimbursement  of  costs or in any  other  way) of any  party to the  other
     party; provided,  however, that the Seller 1 and the Seller 2 shall jointly
     and severally  ("Gesamtschuldner") repay to the Purchaser one half (i.e. DM
     500,000) of the payment  received  pursuant to  subsection  3 (c) above and
     shall be entitled to retain DM 500,000 as a break-up fee. If the rescission
     is a  result  of the  fact  that  the  other  party  has  intentionally  or
     negligently  not complied with its  obligations  hereunder,  the rescinding
     party shall have the right to claim damages from the party in default.


                                      ss. 7
                  Arrangements for the Period until the Closing

1.   The  Seller 1 and the  Seller  2 hereby  undertake  jointly  and  severally
     between today and the Closing


<PAGE>
                                                                               8

     (a) to conduct the Business with the care of a  conscientious  business man
         and  only  within  the  normal  and  ordinary  course  of  business  in
         accordance  with past practice and to agree to all  important  business
         measures,  in  particular  also those  which  would lead to a change or
         amendment to schedules  referred to in this Agreement or deviate to any
         material degree from past practice, with the Purchaser in advance,

     (b) to  maintain  the  present  business  organization  of  Chemotrade  and
         Chemotrade  Leipzig,  to keep their  assets in good  working  order and
         repair,  to maintain their existing  insurance cover, to use their best
         efforts to keep all present employees and workers from giving notice of
         termination,  to maintain the  business  relations  of  Chemotrade  and
         Chemotrade  Leipzig with their suppliers,  customers and other business
         partners to the best of their  ability  and to promote the  Business in
         accordance with past practice as vigorously as possible, and

     (c) not to take any  measures  which would be apt to change the position of
         Chemotrade,  Chemotrade  Leipzig and IUT  represented in this Agreement
         outside the normal and ordinary course of business, and not to pass any
         shareholders'  resolutions of Chemotrade or Chemotrade  Leipzig and not
         to exercise any votes  attributable to the IUT shares without the prior
         consent  of the  Purchaser  with the  exception  of the  1997  Dividend
         Distribution.

2.   The  Seller  1 and  the  Seller  2  shall  permit  the  Purchaser  and  its
     representatives  to inform themselves  further about the legal and economic
     position of Chemotrade,  Chemotrade Leipzig and IUT as reasonably requested
     by the  Purchaser.  The Seller 1 and the Seller 2 shall keep the  Purchaser
     informed  about  all  material   business  matters  and  events  concerning
     Chemotrade,  Chemotrade  Leipzig  and IUT even if they do not  require  the
     approval of the Purchaser pursuant to subsection 1 (a) above.



<PAGE>
                                                                               9

3.   The Purchaser undertakes to use its best efforts to obtain financing of the
     Base Cash  Considerations  as hereinafter  defined at reasonable  terms and
     conditions.

4.   All parties  undertake not to take any measures  which would put at risk or
     render more  difficult  to  consummate  any of the  arrangements  reflected
     herein.

5.   The parties  agree to inform third  parties  before the Closing of the fact
     that the parties have entered into this Agreement and/or of the contents of
     this  Agreement  only in agreement  with all other  parties and in the form
     specifically  agreed  with them,  except and to the extent  that there is a
     legally  binding  obligation  to  inform.  This  shall  also apply to press
     releases and other information furnished to an indefinite group of persons.


                                      ss. 8
                   Withdrawals, Contributions, Indemnification

1.   (a) The Seller 1 and the Seller 2 jointly and severally ("Gesamtschuldner")
         undertake  to pay within two weeks from the  Closing to  Chemotrade  an
         aggregate amount  equivalent to all withdrawals - with the exception of
         the 1997  Dividend  Distribution  - within the meaning of paragraph (b)
         below  made  by the  Seller  1 and  the  Seller  2 from  Chemotrade  or
         Chemotrade  Leipzig  between  January 1, 1998 and the  Closing  and not
         repaid to, or set off with,  Chemotrade or  Chemotrade  Leipzig in that
         period,  except for those  pursuant to paragraph  (c) and  subsection 3
         hereof.  Payments shall be made by bank transfer free of any charges to
         an account to be designated by Chemotrade;  allocation  issues, if any,
         among Chemotrade and Chemotrade  Leipzig shall be settled amongst these
         two companies.

     (b) Withdrawals  within the  meaning  of  paragraph  (a) above are  without
         limitation  all  payments  in cash or in  kind,  of any type and on any
         legal basis  whatsoever,  by Chemotrade  or  Chemotrade  Leipzig to the
         Seller


<PAGE>
                                                                              10

         1 or the Seller 2, or to companies which are controlled by the Seller 1
         or the  Seller 2 or by the  Seller 1 and the  Seller 2  jointly,  or to
         persons  related to the Seller 1 or the Seller 2 within the  meaning of
         ss.ss. 15 et seq. of the General Tax Code ("Abgabenordnung").

     (c) The  Purchaser  undertakes  to pay within two weeks from the Closing to
         the Seller 1 and the Seller 2 jointly and severally ("Gesamtglaubiger")
         an aggregate  amount  equivalent to all  contributions  of cash and all
         other  tangible  assets,  or to  have  such  aggregate  amount  paid by
         Chemotrade  or Chemotrade  Leipzig,  which the Seller 1 or the Seller 2
         have made to Chemotrade or Chemotrade  Leipzig  between January 1, 1998
         and the Closing and which  Chemotrade  or  Chemotrade  Leipzig have not
         repaid  to,  or set off  with,  the  Seller  1 or the  Seller 2 in that
         period, except for those pursuant to paragraph (a) above and subsection
         3 below.  Payment shall in each case be made by bank transfer to a bank
         account to be designated by the Seller 1 and the Seller 2.

2.   Except as  expressly  set  forth in this  Agreement,  all  legal  relations
     between  the  Seller 1 and the  Seller  2 on the one  hand and  Chemotrade,
     Chemotrade  Leipzig  and IUT on the other and all  rights and claims of the
     Seller 1 and the  Seller 2 against  Chemotrade,  Chemotrade  Leipzig or IUT
     shall terminate as of the Closing,  but with economic effect as of December
     31, 1997, and no obligation or liability of any type whatsoever shall arise
     for  Chemotrade,  Chemotrade  Leipzig or IUT and/or the Purchaser from such
     termination.  The  Seller 1 and the  Seller 2 shall  procure  that the same
     applies to all legal relations between companies controlled by the Seller 1
     and/or the Seller 2 and/or persons  related to the Seller 1 or the Seller 2
     on the one hand and Chemotrade, Chemotrade Leipzig and IUT on the other and
     to all rights and claims of companies controlled by the Seller 1 and/or the
     Seller 2 and/or  persons  related  to the  Seller 1 or the Seller 2 against
     Chemotrade,  Chemotrade  Leipzig  and IUT and the Seller 1 and the Seller 2
     shall jointly and severally  ("Gesamtschuldner"),  to the extent necessary,
     hold Chemotrade, Chemotrade
       

<PAGE>
                                                                              11


     Leipzig,  IUT and the Purchaser  fully harmless from any such obligation in
     good time.

3.   (a) Mutual  claims of the Seller 1, the Seller 2,  companies  controlled by
         the Seller 1 and/or the Seller 2 and all persons  related to the Seller
         1 or the Seller 2 on the one hand and  Chemotrade,  Chemotrade  Leipzig
         and IUT on the other,  which are  reflected in the balance sheet of the
         respective  company as of December  31, 1997 as claims or  liabilities,
         shall  be due to the  respective  claimant  in  accordance  with  their
         respective  terms,  except as  expressly  set forth  otherwise  in this
         Agreement.

     (b) Subsections  1 and 2 above shall not apply to the  employment  contract
         between the Seller 1 and Chemotrade,  the consultancy agreement between
         the Seller 2 and Chemotrade,  the service  agreement between HS Consult
         GmbH and Chemotrade and to the pension entitlements of the Seller 1 and
         the  Seller  2 as  set  forth  in ss.  14  below  and  to the  existing
         employment  agreements of the Seller 1 and the Seller 2 as set forth in
         ss. 14 below.

4.   Except  as set  forth in this  Agreement,  the  Seller  1 and the  Seller 2
     jointly and severally  undertake to hold Chemotrade and Chemotrade  Leipzig
     and the Purchaser fully and in good time harmless from

     (a) all  obligations  and  liabilities  of the  Seller  1,  the  Seller  2,
         companies  controlled  by the Seller 1 and/or the Seller 2 and  persons
         related  to the  Seller 1 or the  Seller 2 which  may be  claimed  from
         Chemotrade, Chemotrade Leipzig, IUT and/or the Purchaser, and

     (b) all liabilities of any type whatsoever accrued or contingent (including
         taxes,  social security charges,  customs and other dues) of Chemotrade
         or Chemotrade Leipzig which existed on December 31, 1997 or have arisen
         or will arise from acts, omissions or circumstances in the period


<PAGE>
                                                                              12

         until  December 31, 1997,  to the extent that they are not reflected or
         reserved in the financial  statements of the  respective  company as of
         December 31, 1997.


<PAGE>
                                                                              13

                                      ss. 9
                                  Consideration

1.   Subject to the provisions set forth in this Agreement,  the aggregate value
     of the consideration (the "Total  Consideration") for the sale and transfer
     of the Chemotrade Shares,  rights and claims pursuant to ss. 1 subsection 3
     above and for all other obligations  assumed by the Seller 1 and the Seller
     2 in this Agreement shall be

                                  DM 6,500,000
          (in words, six million five hundred thousand Deutsche Mark).

     The Total Consideration shall consist of:

     (a) a "Base Cash Consideration" in the amount of DM 3,000,000;

     (b) a "Base In Kind Consideration" in the amount of DM 1,500,000.

     (c) an "Installment Cash Consideration" in the amount of DM 1,500,000; and

     (d) a "Contingent Cash Consideration" in the amount of DM 500,000.


2.   The Base Cash  Consideration  shall be due for payment on the Closing  plus
     interest  thereon  at the rate of 10% p.a.  from  July 1,  1998  until  the
     Closing and shall be payable by the Purchaser at the  Purchaser's  risk and
     expense by wire  transfer to one or two bank  accounts as designated by the
     Seller 1 and the Seller 2.

3.   The Base In Kind Consideration shall be a number of common stock of Isonics
     Corporation  to be  determined  as  follows:  DM  1,500,000  divided by the
     average of the closing  prices of common stock of Isonics  Corporation  for
     the ten


<PAGE>
                                                                              14

     consecutive  trading days immediately  preceding the date of signing hereof
     and the five  consecutive  trading days  immediately  following the date of
     signing hereof  rounded  downwards and the  Contingent  Cash  Consideration
     shall be increased by such rounding  difference  (the "Adjusted  Contingent
     Cash Consideration").  The Base In Kind Consideration shall be delivered to
     the Seller 1 and the Seller 2 on the Closing by transfer of legal title and
     release of the common stock to one or two deposit accounts as designated by
     the Seller 1 and the Seller 2.

4.   The Installment Cash Consideration shall be payable as follows:

     (a) Subject to the provisions of subsection 6. below, if Closing is held on
         or  before  June  30,  1998 the  Installment  Cash  Consideration  plus
         interest thereon at a rate of 10% p.a. from  the Closing until the date
         of payment of the Installment Cash Consideration shall be payable on or
         before June 1, 1999 by bank  transfer free of any charges to one or two
         bank accounts as designated by the Seller 1 and the Seller 2.

     (b) Subject  to the  provisions  of  subsection  6.  below,  if  Closing is
         postponed  until  August 31, 1998,  a portion of the  Installment  Cash
         Consideration in the amount of DM 1,000,000 shall be due for payment on
         June 30, 1998 (see ss. 6  subsection 3 c) and the balance in the amount
         of DM 500,000 plus  interest  thereon at the rate of 10% p.a. from July
         1, 1998 until the  Closing  shall be due for payment on the Closing and
         each portion  shall be payable by bank  transfer free of any charges to
         one or two bank  accounts as  designated by the Seller 1 and the Seller
         2.

5.   The Adjusted  Contingent Cash  Consideration  plus interest at a rate of 5%
     p.a.  from the date of Closing  shall be payable only if in the fiscal year
     ended on April 30,  2001 the  aggregate  of the EBIT (as  defined in ss. 10
     below)  of  Chemotrade  and 75% of the  EBIT  of  Chemotrade  Leipzig  (the
     "Consolidated Chemotrade EBIT") is DM 1,000,000 or more.


<PAGE>
                                                                              15


     If and to the extent the  Consolidated  Chemotrade EBIT for the fiscal year
     ended on April 30, 2001 is less than DM 1,000,000,  the Adjusted Contingent
     Cash Consideration shall be reduced correspondingly.  (Example: If the 2001
     Consolidated Chemotrade EBIT amounts to DM 500,000, the Adjusted Contingent
     Cash Consideration shall be reduced by 50%.)

6.   If for the period from  January 1, 1998  through  April  30,1999 or for the
     fiscal year ended on April 30, 2000,  resp.,  the  Consolidated  Chemotrade
     EBIT is less than DM 1,000,000 the Installment Cash Consideration  shall be
     adjusted as follows:

     (i)       If and to the extent  the  Consolidated  Chemotrade  EBIT for the
            period from  January 1, 1998 until  April  30,1999 or for the fiscal
            year ended on April 30, 2000 falls short  vis-a-vis DM 1,000,000 the
            Seller   1  and  the   Seller   2  shall   jointly   and   severally
            ("Gesamtschuldner")  pay the  Purchaser  DM 0.75 for each DM 1.00 of
            such shortfall (or shortfalls).

     (ii)      Any  payment by the  Seller 1 and the  Seller 2  pursuant  to (i)
            shall  be  due  within  one  week  of  the   determination   of  the
            Consolidated  Chemotrade  EBIT  according  to ss.  10 and  shall  be
            payable by bank  transfer  to a bank  account as  designated  by the
            Purchaser

7.   The payments  pursuant to  subsection 5 above shall be due within two weeks
     after the  Consolidated  Chemotrade EBIT for the fiscal year ended on April
     30, 2001 has been finally  determined in accordance  with the provisions of
     ss. 10 below.  The  provision  in  subsection  2 above  shall  apply to the
     Adjusted Contingent Cash Consideration mutatis mutandis.


                                     ss. 10
                          Consolidated Chemotrade EBIT

1.   The  Consolidated  Chemotrade  EBIT  within  the  meaning  of  paragraph  9
     subsection 5 above shall be the consolidated earnings before interest,


<PAGE>
                                                                              16


     extraordinary  charges  and tax of  Chemotrade  and  Chemotrade  Leipzig as
     reflected for the period from January 1, 1998 through  April 30, 1999,  the
     years ended on April 30, 2000,  and 2001  according  to the  classification
     format  pursuant to section 275 para 3 German  Commercial  Code  ("HGB") in
     line 13  ("Ergebnis  der  gewohnlichen  Geschaftstatigkeit")  plus interest
     expenses   and   similar   charges  in  line  12  ("Zinsen   und   ahnliche
     Aufwendungen")  minus  interest  income and similar income items in line 10
     ("Sonstige  Zinsen  und  ahnliche  Ertrage")  of the  1999,  2000  and 2001
     consolidated profit and loss statement of Chemotrade.

2.   (a) The  Consolidated  Chemotrade  EBIT shall be determined on the basis of
         the financial  statements of Chemotrade and Chemotrade  Leipzig and the
         consolidated  financial  statements of  Chemotrade  for the period from
         January 1, 1998 through  April 30,  1999,  the years ended on April 30,
         2000, and 2001 and elimination  calculations pursuant to paragraphs (b)
         to (g) below.

     (b) These  annual  financial  statements  shall be prepared on the basis of
         proper  book-keeping and in accordance with  accounting,  valuation and
         depreciation  principles  generally  accepted  in the United  States of
         America ("US GAAP"). All risks,  devaluations and losses  ascertainable
         at the time of the preparation of the respective  financial  statements
         shall  be  provided  for  by  sufficient   depreciations,   changes  of
         evaluation or reserves;  pension  obligations shall be accrued with the
         highest amounts  permissable under the income tax laws. For purposes of
         determining whether an item constitutes an "extraordinary item" US GAAP
         shall be decisive. Together with the financial statements, calculations
         shall be  prepared  in each  case  which  shows  the  effects  upon the
         Consolidated  Chemotrade  EBIT to be eliminated  pursuant to paragraphs
         (c) to (g) below ("Elimination Statements").

     (c) Effects upon the Consolidated Chemotrade EBIT as a consequence of (i) a
         write-up in connection with the acquisition or restructuring

<PAGE>
                                                                              17

         measures  implemented after the acquisition of the Chemotrade Shares of
         the stated values of the assets of Chemotrade and/or Chemotrade Leipzig
         as against  the book  values of these  assets and  liabilities  carried
         forward on a consistent  basis,  (ii) the  inclusion  of goodwill,  and
         (iii) any  acquisition  and  reorganisation  costs in the course of the
         acquisition of the Chemotrade Shares by the Purchaser or any subsequent
         reorganisation  of  Chemotrade  and/or  Chemotrade   Leipzig  shall  be
         eliminated.  In case  of a  conversion  of a  corporate  entity  into a
         partnership,  the  operating  results  shall be  determined  as if such
         converted entity had remained a corporate entity.

     (d) Effects upon the  Consolidated  Chemotrade EBIT as a consequence of tax
         payments and refunds not  concerning  the period in question as well as
         tax audit results shall be eliminated.

     (e) Effects upon the  Consolidated  Chemotrade EBIT as a consequence of (i)
         measures of particular importance beyond the normal continuation of the
         business  of  Chemotrade  and/or   Chemotrade   Leipzig  and  (ii)  the
         acquisition  or  disposition  of companies and businesses by Chemotrade
         and/or  Chemotrade  Leipzig  shall be eliminated to the extent that the
         Seller 1 and the Seller 2 (acting jointly) contradict such a measure in
         writing  vis-a-vis  the  Purchaser  within  three  months  after having
         obtained   substantiated   knowledge  in  writing.   Effects  upon  the
         Consolidated  Chemotrade  EBIT as a consequence of head office charges,
         if any,  of the  Purchaser  and/or its  associated  companies  shall be
         eliminated;  this shall not apply to  supplies,  services  and payments
         under  arm's  length  arrangements  of a  specific  nature  even if the
         performance  of  one  side  or the  other  within  the  scope  of  such
         arrangements  is  determined  on a lump sum basis,  provided  that such
         supplies and services  are  appropriate  for a business of the size and
         the nature of the Business.


<PAGE>
                                                                              18


     (f) Effects upon the  Consolidated  Chemotrade  EBIT resulting from sets of
         facts for which the Purchaser  raises claims against against the Seller
         1 and the  Seller 2 shall be  eliminated  to the  extent  to which  the
         Purchaser and/or Chemotrade or Chemotrade Leipzig receive  compensation
         therefore from the Seller 1 and the Seller 2.

     (g) The  Purchaser  shall  not be  prevented  by  the  provisions  in  this
         subsection  2  from  conducting  and  reorganizing   Chemotrade  and/or
         Chemotrade  Leipzig in any manner  chosen by it. The  interests  of the
         Seller 1 and the Seller 2 are taken into account by the  provisions  in
         this  subsection  2. To the extent that  measures not addressed in this
         subsection 2 and caused by the Purchaser  influenced  the  Consolidated
         Chemotrade EBIT in an unacceptable manner, the Purchaser and the Seller
         1 and the  Seller  2 (the  latter  acting  jointly)  shall  adjust  the
         calculation method in a reasonable way which is fair for both sides.

3.   (a) Chemotrade  and  the  Purchaser  shall  prepare  the  annual  financial
         statements of Chemotrade  and Chemotrade  Leipzig and the  consolidated
         financial  statements of Chemotrade as of April 30, 1999 (including the
         period  from  January  1, 1998  until  April 30,  1998) to 2001 and the
         Elimination  Statements  as quickly as  possible  after the  respective
         fiscal  year-end  and in any event by June 15 of the  following  fiscal
         year and have them  audited  by Grant  Thornton  or a  designee  of the
         Purchaser,  to the extent legally required or desired by the Purchaser.
         The audit shall in particular be directed  towards the adherence to the
         accounting  principles pursuant to subsections 1 and 2 above. The costs
         connected with the  preparation  and audit,  if any, of these financial
         statements and  Elimination  Statements  shall be fully reserved for in
         the financial statements.  The decision about the audit and the auditor
         can be taken by the Purchaser on a year-by-year basis.

     (b) The Seller 1 and the Seller 2 (acting  jointly) shall have the right to
         have these financial  statements and Elimination  Statements audited at
         their


<PAGE>

                                                                              19

         cost by an auditor of their choice. The auditor of the Seller 1 and the
         Seller 2 can  participate in the physical count of the  inventories and
         in order to exercise his rights shall receive  reasonable access to all
         books and records and assets of Chemotrade  as well as all  information
         reasonably requested by him.

     (c) The Purchaser  shall submit the financial  statements  and  Elimination
         Statements  together  with the audit report  pursuant to paragraph  (a)
         above to the Seller 1 and the Seller 2 immediately after completion. If
         the Seller 1 and the Seller 2 (acting  jointly) do not  contradict  the
         submitted  documents within one month after receipt,  the results shown
         therein  shall become  final for the parties.  If prior to the lapse of
         the  afore-mentioned  one-month  period  the  Seller 1 and the Seller 2
         (acting  jointly) give  instructions  to audit the submitted  financial
         statements and Elimination  Statements  pursuant to paragraph (b) above
         and inform the Purchaser  thereof within such period,  the term for the
         contradiction  for the  Seller 1 and the  Seller 2 shall  extend by two
         months from the lapse of the original contradiction term.

     (d) To the  extent  that the  Seller 1 and the  Seller 2  (acting  jointly)
         contradict  results  shown  in  the  submitted   documents  within  the
         afore-mentioned  periods and furnish reasons for the  contradiction and
         the parties do not agree upon the points under dispute addressed by the
         contradictions   within   one   month   after   receipt   of  the  last
         contradiction,  the certified  public  accountant KPMG Dusseldorf shall
         determine  with binding  effect for all the parties on the basis of the
         principles  set forth in subsections 1 and 2 above how the points under
         dispute addressed by the contradictions and not already settled between
         the parties before shall be settled. The costs of KPMG Dusseldorf shall
         be borne by the parties in  relation in which they do not prevail  with
         their respective opinion.


                                     ss. 11
         Representations and Warranties of the Seller 1 and the Seller 2



<PAGE>
                                                                              20

In concluding  this  Agreement the Purchaser  relies on the  correctness  of the
representations  and warranties made by the Seller 1 and the Seller 2 hereafter.
The  Seller 1 and the Seller 2 hereby  represent  and  warrant  as a  guaranteed
quality (in accordance  with ss. 459  Sub-Section 2 German Civil Code) and as an
independent  guarantee (in  accordance  with ss. 305 German Civil Code) that the
following  representations  and  warranties  are correct  today and,  except for
interim  changes  in full  compliance  with ss. 7 above,  will be correct at the
Closing.

1.   (a) The  statements  in ss. 1 and ss. 2 and ss. 3 hereof about  Chemotrade,
         Chemotrade Leipzig and IUT and the Business are complete and correct in
         every respect. Chemotrade, Chemotrade Leipzig, and IUT are corporations
         validly  existing and in good  standing  under German law.  They have a
         requisite  power and authority to own or lease their  properties and to
         carry on their business as presently being conducted. All matters which
         need  to be  registered  in the  commercial  register  have  been  duly
         registered.  Chemotrade,  Chemotrade  Leipzig  and IUT do not  have any
         supervisory, advisory or similar bodies.

     (b) The Chemotrade Shares as well as the Chemotrade  Leipzig shares and the
         IUT shares (the "Subsidiaries' Shares") are duly and validly issued and
         outstanding,  fully paid and free of secondary or other  obligations or
         restrictions. The stated capital of Chemotrade,  Chemotrade Leipzig and
         IUT has  directly,  or  indirectly,  not  been  repaid  nor has it been
         reduced  by losses.  The Seller 1 and the Seller 2 have legal  title to
         the   Chemotrade   Shares  and   Chemotrade  has  legal  title  to  the
         Subsidiaries'  Shares.  The  Chemotrade  Shares  and the  Subsidiaries'
         Shares  are  free  and  clear  of  any  claims,   liens,  pledges,  and
         encumbrances,  sub-participations  or  security  assignments  or  other
         interests  except as disclosed  in  Schedule ss. 11 (1) (b) hereto. The
         Chemotrade Shares and the Subsidiaries'  Shares have not been issued in
         violation of, and are not subject to, any  pre-emptive or  subscription
         rights  other  than   stipulated   in  the   articles  of   association
         ("Gesellschaftsvertrag") (waived



<PAGE>

                                                                              21

         pursuant to ss. 5 subsection 3 above). None of the Chemotrade Shares or
         of the  Subsidiaries'  Shares are subject to any voting trust agreement
         or other agreement (outside of the articles of association) restricting
         or otherwise relating to the voting,  dividend rights or disposition of
         the Chemotrade Shares or the Subsidiaries' Shares, respectively.  There
         are no  outstanding  warrants,  options,  convertible  or  exchangeable
         securities or other  commitments  pursuant to which the Seller 1 or the
         Seller 2 or Chemotrade or Chemotrade Leipzig or IUT are, or may become,
         obligated  to issue,  sell,  purchase,  return or redeem  any shares or
         registered  share  capital  or other  securities  of  Chemotrade  or of
         Chemotrade Leipzig or IUT.

     (c) The Seller 1 and the Seller 2 have all  requisite  powers and authority
         to  execute  and to deliver  this Sale and  Purchase  Agreement  and to
         consummate the  transactions  contemplated  hereby.  This Agreement has
         been duly  executed  by the Seller 1 and the  Seller 2. This  Agreement
         constitutes  a valid and  binding  obligation  of the  Seller 1 and the
         Seller  2,  enforceable  against  them in  accordance  with its  terms.
         Conclusion  and completion of this Agreement do not constitute the sale
         of the entire or almost the entire assets of the Seller 1 or the Seller
         2 under ss. 419 German Civil Code.

     (d) The  execution  and delivery of this  Agreement by the Seller 1 and the
         Seller 2 does  not,  and the  performance  by them of the  transactions
         contemplated  hereby to be performed by them will not conflict with, or
         result in, the breach of any  provision of the articles of  association
         of  Chemotrade,  Chemotrade  Leipzig or IUT.  No  consent,  approval or
         authorization  of, or  registration  with,  any  court or  governmental
         agency is required  for the Seller 1 and the Seller 2 to enter into and
         to  perform  their  obligations  hereunder.  By the  assignment  of the
         Chemotrade shares pursuant to this Agreement the Purchaser will acquire
         full,  unrestricted and unencumbered  title to the Chemotrade shares at
         its free disposal.


<PAGE>
                                                                              22


2.   (a) Except  as  disclosed  in  Schedule ss. 11 (2) (a)  hereto, Chemotrade,
         Chemotrade Leipzig and IUT has full unrestricted and unencumbered title
         to, and direct or indirect  possession  of, or tangible and  intangible
         assets  which are used in its  business,  except those assets which (i)
         are leased or licensed from persons and companies other than the Seller
         1, the Seller 2, companies  controlled by, and persons  related to, the
         Seller 1 and/or the  Seller 2 on normal  market  terms,  (ii) are still
         subject to usual  reservations of title by suppliers pending payment or
         (iii) or neither  individual nor in total material.  To the extent that
         such assets,  and in particular  tools, are in the direct possession of
         third  parties,  Chemotrade,  Chemotrade  Leipzig  and IUT  can  demand
         delivery of such assets free of charge at any time.

     (b) Schedule ss. 11 (2) (b) hereto  reflects  completely  and correctly all
         existing security rights including,  without limitation, share pledges,
         encumbrances,  transfer of assets or  assignments  of claims as well as
         undertakings  and  restrictions  regarding the  corporate  structure of
         Chemotrade, Chemotrade Leipzig and IUT granted by them and all existing
         obligations of them to grant security rights.

3.   The  financial  statements  as of  December  31,  1997  of  Chemotrade  and
     Chemotrade Leipzig ( together the "Chemotrade  Financial  Statements") have
     been prepared with the care of a conscientious business man on the basis of
     proper  book  keeping  and  in  accordance  with  accounted  valuation  and
     depreciation  principles generally accepted in Germany. Except as disclosed
     to the Purchaser in Schedule ss. 11 (3) hereto these  principles  have been
     applied  consistently  and  without  change  in  preparing  the  Chemotrade
     Financial  Statements of Chemotrade and  Chemotrade  Leipzig as of December
     31,  1996.  As of December  31, 1997 there are no risks,  devaluations  and
     losses  other than  those duly  provided  for by  sufficient  depreciations
     changes or evaluation or reserves in the Chemotrade  Financial  Statements.
     The Chemotrade Financial Statements,  including the notes, are complete and
     correct and


<PAGE>
                                                                              23

     present  completely and correctly the financial  position of Chemotrade and
     Chemotrade  Leipzig  as of  December  31,  1997  and  the  results  of  the
     operations  of the  fiscal  year ended  December  31,  1997.  The equity of
     Chemotrade and Chemotrade  Leipzig as of December 31, 1997 is not less than
     the amounts reflected in the Chemotrade Financial Statements.

4.   Except as disclosed in Schedule ss. 11 (4) hereto,  since December 31, 1997
     (i) Chemotrade and Chemotrade  Leipzig have only been conducted  within the
     normal and ordinary course of business (ii) no extraordinary business event
     or legal  arrangement  has  occurred or been entered into and there has not
     been any event which by itself or together with other events has materially
     adversely  affected the business the assets or the  financial  situation of
     Chemotrade  or  Chemotrade  Leipzig and (iii) or salary and wage  increases
     granted since December 31, 1997 were required under  collective  bargaining
     agreements or, if that was not the case, were within the normal scope.

5.   (a) Except as reflected in the Chemotrade Financial Statements,  Chemotrade
         and Chemotrade Leipzig have not erected any buildings,  improvements or
         constructions on real estate owned by third parties.

     (b) All buildings,  improvements and constructions  leased by Chemotrade or
         Chemotrade Leipzig from third parties (the "Chemotrade  Buildings") are
         in good and serviceable  condition,  normal wear and tear excepted. The
         condition or the present use of the Chemotrade Buildings do not violate
         any  statutory,  administrative  or other  legal  provisions  including
         building  regulations,  building restrictions and provisions concerning
         environmental  protection.  To the extent  that real  estate  leased by
         Chemotrade or Chemotrade Leipzig is currently contaminated, any present
         and  future  obligation  (other  than as a result of changes of law) to
         clean  up such  contaminations  rests  with  the  owners  and not  with
         Chemotrade or Chemotrade  Leipzig,  or to the extent that it rests with
         Chemotrade or Chemotrade Leipzig is fully covered by insurance,  and to
         the extent that Chemotrade or Chemotrade Leipzig take clean-up


<PAGE>
                                                                              24

         measures required by law,  Chemotrade and Chemotrade  Leipzig are fully
         protected by corresponding  claims against the owners and/or insurance.
         Except as reflected in the Chemotrade Financial Statements,  Chemotrade
         and Chamotrade  Leipzig do not have any  reconstruction  obligations in
         respect of the leased real estate.

6.   All material and movable assets of Chemotrade  and Chemotrade  Leipzig have
     been well maintained and are in good and serviceable condition,  reasonable
     wear and tear  excepted.  All  inventories  of  Chemotrade  and  Chemotrade
     Leipzig  existing on December  31, 1997 have been valued in the  Chemotrade
     Financial  Statements  according  to the  strict  lower  of cost or  market
     principle  taking quantity and quality aspects into  consideration.  Except
     for the two items  reflected on  Schedule ss. 11 (6) hereto,  the aggregate
     amount  shown as  receivables  in the books and records of  Chemotrade  and
     Chemotrade Leipzig as of December 31, 1997 has been or will be collected on
     the basis of collection  procedures usual within  Chemotrade and Chemotrade
     Leipzig  within 90 days from the due date at the gross amount shown without
     deductions and  delcredere,  collection or other costs,  less the amount of
     individual  and  lump  sum  reserves  made  in  the  Chemotrade   Financial
     Statements  in  respect  thereof.  The  accounts  receivable  reflected  on
     Schedule ss. 11 (6) hereto can be collected on April 30, 1999 at the latest
     at the gross amount shown without deductions and delcredere,  collection or
     other costs,  less the amount of  individual  and lump sum reserves made in
     the Chemotrade Financial Statements in respect thereof.

7.   Except for the disputes set forth in Schedule ss. 11 (7) hereto, Chemotrade
     and Chemotrade  Leipzig are not a party to, or to the best of the knowledge
     of  the  Seller  1  or  the  Seller  2  threatened   by,  any   litigation,
     administrative proceedings or investigations having a value of more than DM
     50,000  per  case,  nor  are  circumstances  known  to  exist  which  might
     reasonably  be  expected  to  lead  to  such   litigation,   administrative
     proceedings or  investigations.  Chemotrade and Chemotrade  Leipzig are not
     subject  to  any   judgements,   decree  or  settlement  in  any  legal  or
     administrative proceedings which materially restricts or impairs


<PAGE>
                                                                              25

     them in certain  business  measures,  in the  acquisition or disposition of
     assets, in competition or in the operation of their business.

8.   Except for the contracts, agreements and promises described in Schedule ss.
     11 (8) hereto  (hereinafter  collectively the  "Contractual  Obligations"),
     Chemotrade  and  Chemotrade  Leipzig  are not  subject  to any  contractual
     obligations of the type set forth in Schedule ss. 11 (8) hereto.

     The Contractual Obligations are valid, and neither Chemotrade or Chemotrade
     Leipzig nor the  respective  other party have  breached,  or are in default
     under,  any of the  Contractual  Obligations  to any material  degree.  The
     execution and  consummation of this Agreement will not result in any change
     or termination of any Contractual  Obligations,  in the acceleration of any
     material  obligation or liability of Chemotrade or Chemotrade  Leipzig,  in
     the repayment of any grants,  tax advantages or comparable  benefits of any
     kind whatsoever granted to Chemotrade or Chemotrade Leipzig or, to the best
     knowledge of the Seller 1 or Seller 2 in the  reduction or  termination  of
     any supply or delivery  relations between  Chemotrade or Chemotrade Leipzig
     and their  respective  suppliers  and  customers.  Neither  Chemotrade  nor
     Chemotrade   Leipzig  has  a  workers'   council  or  is  a  member  in  an
     "Arbeitgeberverband".

9.   Schedule  ss. 11 (9) hereto  contains a complete  and  correct  list of all
     patents,  petty  patents,  design  patents,  trade  marks  and  trade  mark
     applications and all other  intellectual  property rights of Chemotrade and
     Chemotrade  Leipzig. Except as stated in  Schedule ss. 11  (9)  hereto  and
     subject  to  the  best  knowledge  of  the  Seller  1  or  Seller  2  these
     intellectual  property rights are free from all rights of third parties and
     not subject to cancellation or total or partial nullification or any rights
     of prior users;  Chemotrade and Chemotrade  Leipzig are also not restricted
     in their  exclusive  use. All fees required to maintain  such  intellectual
     property  rights  have  been  paid and all other  action  required  in this
     respect has been taken.


<PAGE>
                                                                              26


     Chemotrade and Chemotrade  Leipzig have all  manufacturing,  processing and
     marketing  know-how for their entire previous and present  products and for
     all products  and product  improvements  in  preparation  and hold,  to the
     extent that such manufacturing,  processing and marketing know-how has been
     reduced to writing,  all documents pertaining thereto. All software used by
     Chemotrade  and  Chemotrade  Leipzig is either owned or properly  licensed.
     Except as stated in Schedule ss. 11 (9) hereto,  Chemotrade  and Chemotrade
     Leipzig  do not  infringe  to any  material  degree  or with  any  material
     consequences  any  industrial  property  rights  and copy  rights  of third
     parties by manufacturing  and/or marketing their present products or by any
     other act within their business.

10.  Chemotrade and  Chemotrade  Leipzig carry  adequate  insurance  against all
     risks  which a  conscientious  business  man in  their  light  of  business
     normally covers,  including fire. The insurance contracts are in full force
     and effect and all premiums due until today have been paid.  Since December
     31,  1997 no  material  events  or damage  have  arisen  at  Chemotrade  or
     Chemotrade Leipzig which could have been, but are not covered by insurance.

11.  Chemotrade  and  Chemotrade   Leipzig  have  obtained  all   administrative
     approvals and licenses  which they require for the conduct of the Business.
     Chemotrade  and  Chemotrade  Leipzig do not violate in the  Business to any
     degree  or with  any  consequences,  any  rights  of third  parties  or any
     applicable laws including,  but without  limitation,  competition and trade
     law and provisions concerning  environmental  protection and foreign trade,
     and  have  also  in  the  past  not  violated  any  provisions   concerning
     environmental  protection  or foreign  trade to any  degree.  All  products
     manufactured and/or distributed by Chemotrade or Chemotrade Leipzig conform
     to the legal provisions in the country of sale by Chemotrade and Chemotrade
     Leipzig.

12.  To the best  knowledge  of Seller 1 or Seller  2,  there are no  particular
     circumstances  which could in the future  materially  adversely  affect the
     Business. The Seller 1 and the Seller 2 have no knowledge of any facts or


<PAGE>
                                                                              27

     circumstances  which  could  result  in  any  restriction,   impediment  or
     cessation  of the  manufacture  and/or  marketing  of any product  which is
     presently manufactured and/or marketed by Chemotrade or Chemotrade Leipzig.


                                     ss. 12
                            Performance and Liability

1.   The   Seller  1  and  the  Seller  2  shall  be   jointly   and   severally
     ("Gesamtschuldner")  liable for the  performance  of this Agreement and for
     all claims of the Purchaser  against them pursuant to this  Agreement up to
     the  balance  held  from  time  to  time  on the  Escrow  Deposit  Account.
     Otherwise, they shall be severally liable.

2.   (a) Subject to the provisions in paragraphs (b) to (d) below, all claims of
         the  Purchaser  pursuant to this  Agreement  shall be  excluded  unless
         substantiated in writing by April 30, 2001, and claims substantiated in
         writing by April 30,  2001  shall be subject to a period of  limitation
         until September 30, 2001.

     (b) Claims based on defects of title of the Chemotrade  shares shall not be
         excluded before expiration of the statutory period of limitation.

     (c) Claims in respect of  liabilities  of Chemotrade or Chemotrade  Leipzig
         for taxes,  social security  charges and other public dues shall not be
         excluded   before  (i)  the   expiration  of  six  months  after  final
         assessment,  following  the  administrative  audits for the  respective
         periods,  of all taxes,  social security  charges and other public dues
         payable by  Chemotrade  or  Chemotrade  Leipzig for the period  through
         December 31, 1997 or (ii) the periods set forth in paragraph  (a) above
         whichever is longer.

     (d) For claims of the Purchaser on the basis of obligations of the Seller 1
         and/or the Seller 2 in this  Agreement  which relate to the period from
         or after the Closing,  the period of  limitation  pursuant to paragraph
         (a) above



<PAGE>
                                                                              28

         shall,  to the extent  necessary,  extend until the  expiration  of six
         months (i) after the  expiration  of the term of the  obligation if the
         obligation has a defined term or (ii) after the claim has arisen if the
         obligation does not have a definite term.

     (e) The  provisions  in  paragraphs  (a) and (e) above shall apply  mutatis
         mutandis  to all claims of the Seller 1 and/or the Seller 2 pursuant to
         this Agreement.

3.   Every right of rescission  ("Wandelung  and  Rucktritt")  shall be excluded
     except as expressly provided for in this Agreement. ss.ss. 123, 476 and 826
     German Civil Code shall not be affected.

4.   (a) Any   liability   of  the   Seller  1  and  the  Seller  2  beyond  the
         representations,  warranties and obligations  expressly  assumed by the
         Seller 1 and the  Seller 2 in this  Agreement  shall be  excluded.  The
         statutory  or  contractual  liability  for  defects  of  title  to  the
         Chemotrade Shares shall not be affected.

     (b) In case of a violation of representations and warranties,  the Seller 1
         and the Seller 2 shall put the  Purchaser or  Chemotrade  or Chemotrade
         Leipzig,   respectively,   into  a  position   as  if  the   respective
         representation  and warranty  were  correct.  If this is factually  not
         possible,  the Purchaser shall have all statutory legal recourse except
         as specifically agreed otherwise in this Agreement.

5.   (a) An  review,  inspection  and  investigation  of  the  Purchaser  or any
         certified public accountant,  attorney or other consultant  retained by
         the Purchaser shall neither affect the obligations, representations and
         warranties  of the Seller 1 and the Seller 2 hereunder nor the right of
         the  Purchaser  to  raise  claims  on the  basis  of such  obligations,
         representations and warranties.



<PAGE>
                                                                              29


     (b) Subsequent  changes of the  Chemotrade  Financial  Statements  or prior
         financial  statements of Chemotrade  or Chemotrade  Leipzig,  including
         changes, if any, resulting from administrative  audits,  shall not have
         any effect upon the determination of the Total  Consideration and shall
         also not  result in any other  payment  in cash or in kind on any legal
         basis whatsoever of the Purchaser to the Seller 1 or the Seller 2 or of
         the  Seller 1 or the  Seller 2 to the  Purchaser  except  as  expressly
         provided otherwise in this Agreement and in its Schedules.

6.   (a) Claims  of the  Purchaser  against  the  Seller  1 and the  Seller 2 in
         respect of tax  liabilities  can only be raised to the extent  that the
         tax liabilities  not reflected or reserved in the Chemotrade  Financial
         Statements exceed (i) tax reimbursements,  if any, not reflected in the
         Chemotrade   Financial   Statements  and  (ii)  the  aggregate   amount
         discounted to December 31, 1997 at a discount rate of 5.0 per cent p.a.
         of the tax  benefit,  if  any,  to  Chemotrade  or  Chemotrade  Leipzig
         resulting in the period beginning December 31, 1997 and ending December
         31,  2002 from the  revaluation  of assets  and/or the  devaluation  of
         liabilities  and/or  accruals in the course of tax field audits for the
         period until December 31, 1997.

     (b) Claims of the  Purchaser  against  the Seller 1 and the Seller 2 on the
         basis of the  representations  and  warranties  of the Seller 1 and the
         Seller 2 in this  Agreement can only be raised to the extent that their
         aggregate  amount,  after  considering  the  provision in paragraph (a)
         above,  exceeds DM 200,000;  provided,  however,  that such  de-minimis
         amount  shall not apply in respect of the  warranty  pursuant to ss. 11
         no. 6 to the extent related to the accounts receivable and any claim of
         the  Purchaser  in respect of such  warranty can be set off against the
         Adjusted Contingent Cash Consideration.

     (c) Subject to the proviso in this  subsection 6 (b) at the end,  claims of
         the Purchaser against the Seller 1 and the Seller 2 on the basis of the
         representations and warranties in this Agreement shall be restricted to



<PAGE>
                                                                              30


         a  maximum  amount  equal  to the  aggregate  of the  Installment  Cash
         Consideration  pursuant to ss. 9 subsection  1,4 and 6 and the Adjusted
         Contingent Cash Consideration  pursuant to ss. 9 subsections 1, 3 and 5
         outstanding on the day when claims are raised by the Purchaser.

     (d) The  provisions  in  paragraphs  (b) and (c)  above  shall not apply to
         claims in respect of defects of title to the  Chemotrade  Shares  which
         can be raised without  considering this deductible and this cap; on the
         other hand such claims  shall not be  considered  in order to determine
         whether other claims of the Purchaser can be raised  against the Seller
         1 or the Seller 2.

     (e) Claims of the Purchaser against the Seller 1 or the Seller 2 which have
         not been raised as a consequence  of paragraph (b) above shall be taken
         into   consideration   without  regard  to  any  applicable   statutory
         limitation pursuant to subsection 2 above in order to determine whether
         subsequent claims can be raised in accordance with paragraph (b) above.


                                     ss. 13
                                 Implementation

1.   Tax  matters of  Chemotrade  and  Chemotrade  Leipzig  (including  appeals)
     concerning the period through  December 31, 1997 shall be handled after the
     Closing by  Chemotrade,  Chemotrade  Leipzig and the Purchaser in agreement
     with the  Seller 1 and the Seller 2 (acting  jointly  and  uniformly).  The
     Seller 1 and the  Seller 2  jointly  or  severally  must in  particular  be
     notified in time of, and must be given an  opportunity to comment on and to
     participate  in,  tax  field  audits.   Binding  declarations  to  the  tax
     authorities which may have consequences for



<PAGE>
                                                                              31


     the Seller 1 and/or the  Seller 2 shall be made by  Chemotrade,  Chemotrade
     Leipzig  and/or the Purchaser  only in agreement  with the Seller 1 and the
     Seller 2 (acting  jointly  and  uniformly);  the  Seller 1 and the Seller 2
     hereby assume corresponding  obligations vis-a-vis  Chemotrade,  Chemotrade
     Leipzig and the Purchaser.

2.   The Purchaser  shall procure that  Chemotrade and Chemotrade  Leipzig grant
     the  Seller 1 and the  Seller 2 and their  representatives  also  after the
     Closing the right to inspect  during  normal  business  hours all books and
     business  records of  Chemotrade  and  Chemotrade  Leipzig  relating to the
     period until the Closing,  to the extent that such inspection is reasonably
     requested  for tax reasons,  for reasons of defense  against  claims or for
     other legitimate reasons.

3.   The parties undertake, upon the request of any party, at any time after the
     Closing  and  without   further   compensation   to  make  and  accept  all
     declarations  in proper  form and to take all  measures  which may still be
     necessary in order to consummate,  and to comply fully with, the purpose of
     this Agreement.


                                     ss. 14
                               Other Undertakings

1.   (a) Chemotrade,  Chemotrade  Leipzig,  the Purchaser  and their  respective
         legal or  contractual  successors  shall  have the  right to use and to
         permit others to use worldwide as a name,  mark or in any other desired
         manner  at any time  after  the  Closing  in  accordance  with the then
         prevailing  provisions of the law, the present firm names of Chemotrade
         and  Chemotrade  Leipzig and every  distinctive  part thereof,  with or
         without addition.

     (b) The Seller 1 and the Seller 2 severally undertake after the Closing not
         to use the present firm names of Chemotrade  or Chemotrade  Leipzig nor
         any  distinctive  part  thereof nor any firm name  confusingly  similar
         therewith,  with or without  addition,  nor a trade or service  mark, a
         design



<PAGE>
                                                                              32


         or a trade dress presently used by Chemotrade or Chemotrade  Leipzig or
         confusingly  similar  with the ones used by  Chemotrade  or  Chemotrade
         Leipzig in any business connection whatsoever.

2.   The Seller 1 and the Seller 2 shall enter into an employment agreement or a
     consultancy  agreement,  respectively,  as mutual agreed with the Purchaser
     and the existing  employment  contracts shall be terminated without penalty
     as of the Closing.

3.   The  Seller 1 and the  Seller 2  severally  undertake  for a period of five
     years from the effective date of termination of their respective employment
     agreement  or  consultancy  agreement  not to  manufacture  or  market  any
     products or render any  services in Europe and in the United  States  which
     are of the same kind as, or  competitive  with,  products  manufactured  or
     marketed or services  rendered by Chemotrade  or Chemotrade  Leipzig in the
     past or at present or  currently  planned to be  manufactured,  marketed or
     rendered by Chemotrade or Chemotrade Leipzig,  nor to assist third parties,
     directly or indirectly, in the manufacture or marketing of such products or
     the  rendering  of such  services,  nor to hold  in any way  whatsoever  an
     interest  in a company,  which  manufactures  or markets  such  products or
     renders such services.  Excluded from this  restriction is the  acquisition
     and  holding  for  investment  purposes  of (i)  common  stock  of  Isonics
     Corporation or (ii) shares or convertible debentures of a company listed on
     a stock exchange  which is engaged in the  manufacture or marketing of such
     products or in the rendering of such services;  provided,  however, that in
     the  latter  case the  Seller 1 and the  Seller 2 do not  acquire  directly
     and/or indirectly shares or convertible debentures which constitute, or can
     be  converted  into,  more than five per cent of the share  capital  of the
     respective company.

4.   In case of a rescission by the Purchaser  pursuant to this  Agreement,  the
     Purchaser undertakes for a period of five years from the date of rescission
     to keep  strictly  secret all matters and in  particular  all  business and
     trade secrets of Chemotrade,  Chemotrade Leipzig or IUT known to it and not
     to disclose such


<PAGE>
                                                                              33


     matters and secrets,  directly or  indirectly,  to any third party,  nor to
     cause  such  disclosure  by  third  parties,  nor to abet or  justify  such
     disclosure,  nor to use such  matters  or  secrets  for  itself  or for the
     benefit  of its  associated  companies.  This shall not apply to the extent
     that  such  information  is  already  known  to the  Purchaser  and/or  its
     associated companies from sources other than Chemotrade, Chemotrade Leipzig
     or IUT or becomes  known to them  without  any  violation  of this  secrecy
     obligation.

5.   Seller 1 and Seller 2 understand  that the Base In Kind  Consideration  has
     not been  registered  under the  Securities  Act of 1993,  as amended  (the
     "Securities  Act").  Seller 1 and Seller 2 also understand that the Base In
     Kind  Consideration is being offered and sold pursuant to an exemption from
     registration  contained in the Securities Act based in part upon Seller 1's
     and Seller 2's representations contained in this Agreement.

     At the time of the  execution  of this  Agreement by Seller 1 and Seller 2,
     such persons are located outside of the United States. Neither Seller 1 nor
     Seller 2 is a "U.S.  Person"  as such  term is  defined  in Rule  902(o) of
     Regulation S promulgated under the Securities Act.

     Seller 1 and Seller 2 are acquiring the Base In Kind Consideration for each
     of their own  accounts  for  investment  only,  and not with a view towards
     their distribution.  Seller 1 and Seller 2 understand that the Base In Kind
     Consideration may not be sold, transferred or otherwise disposed of without
     registration under the Securities Act or an exemption  therefrom,  and that
     in the absence of an effective  registration statement covering the Base In
     Kind  Consideration or an available  exemption from registration  under the
     Securities Act, the Base In Kind  Consideration  must be held indefinitely.
     In  particular,  Seller  1 and  Seller  2 are  aware  that the Base In Kind
     Consideration  may only be sold pursuant to Rule 144 promulgated  under the
     Securities Act if all of the conditions of that Rule are met.  Seller 1 and
     Seller 2  represent  that,  in the  absence  of an  effective  registration
     statement covering the Base In Kind Consideration they will sell, transfer,
     or  otherwise  dispose of the Base In Kind



<PAGE>
                                                                              34


     Consideration  only in a manner consistent with their  representations  set
     forth herein.

     Seller 1 and Seller 2 understand that in no event will they make a transfer
     or  disposition  of any of the  Base  In  Kind  Consideration  (other  than
     pursuant to an effective  registration  statement  under the Securities Act
     or, to  Isonics'  satisfaction,  pursuant to Rule 144) unless and until (i)
     Seller  1 and  Seller  2  shall  have  notified  Isonics  of  the  proposed
     disposition  and shall  have  furnished  Isonics  with a  statement  of the
     circumstances  surrounding  the  disposition,  and  (ii)  if  requested  by
     Isonics,  at  the  expense  of  Seller  1  and  Seller  2 or  the  proposed
     transferee,  Seller 1 and  Seller 2 shall  have  furnished  to  Isonics  an
     opinion of counsel,  reasonably satisfactory to Isonics, to the effect that
     such transfer may be made without registration under the Securities Act.

     Seller 1 and Seller 2 understand  that each  certificate  representing  the
     Base In Kind Consideration will be enclosed with the following legend:

     The  Securities  represented  hereby  have not been  registered  under  the
     Securities  Act of  1933  (the  "Act")  and  may  not be  offered,  sold or
     otherwise  transferred,   assigned,  pledged  or  hypothecated,  except  as
     provided for in this Agreement,  unless and until  registered under the act
     or unless the company has  received an opinion of counsel  satisfactory  to
     the company and its counsel that such registration is not required.

6.   The  pension  entitlements  of the  Seller  1 and the  Seller  2  shall  be
     transferred  by  Chemotrade  to HS Consult GmbH as per the Closing  against
     transfer    of    the    employer's     pension     liability     insurance
     ("Ruckdeckungsversicherung")  and  payment  in  cash of the  excess  of the
     pension reserve over the employer's  pension liability  insurance,  each as
     per the Closing.


                                     ss. 15
                                  Share Pledges

<PAGE>
                                                                              35


1.   The Purchaser hereby pledges the Chemotrade  Shares to the Seller 1 and the
     Seller  2  as  joint  creditors   ("Gesamtglaubiger")   as  collateral  for
     Purchaser's  obligation to make payments in respect of the Installment Cash
     Consideration and the Adjusted Contingent Cash Consideration as provided in
     this  Agreement.  The pledge of the Chemotrade  Shares shall be governed by
     the legal provisions under the German Civil Code for a pledge  ("Pfandrecht
     am Rechten").

2.   The Seller 1 and the Seller 2 hereby  pledge to the  Purchaser  jointly and
     severally  ("Gesamtschuldner") the Base In Kind Consideration as collateral
     for their  obligations,  if any, under ss. 9 subsection 6 or ss. 12 of this
     Agreement  (the "U.S.  Pledge").  The U.S.  Pledge shall be governed by the
     provisions  under the German Civil Code for a pledge to the extent  legally
     permitted.


                                     ss. 16
                                  Miscellaneous

1.   The notarial fees,  registration fees and transfer taxes, if any, connected
     with the execution and consummation of this Agreement shall be borne by the
     Purchaser. Apart therefrom, each contractual party shall bear its own costs
     and taxes and the costs of its advisers and auditors.

2.   Changes and amendments to this Agreement as well as declarations to be made
     hereunder  shall be valid only if made in writing unless a notarial deed is
     legally required. This shall also apply to any change of this subsection 2.

3.   The  Seller 1 and the  Seller 2 shall  jointly  and  uniformly  advise  the
     Purchaser  of a person  or legal  entity  which is  authorized  to make and
     accept with  legally  binding  effect for the Seller 1 and the Seller 2 all
     declarations under this Agreement or in consummation hereof.

     The Seller 1 and the Seller 2 hereby appoint as such agent:

<PAGE>
                                                                              36


     BM Partner Revision GmbH Wirtschaftsprufungsgesellschaft
     Kanzlerstrasse 8, 40472 Dusseldorf.

     A change in the  person  or  address  of the agent of the  Seller 1 and the
     Seller 2 shall be effective for the Purchaser only one month after the date
     on  which it has  been  notified  of such  change.  Until  the laps of such
     period, the authority of the previous agent as well as his address shall be
     deemed to continue.

4.   Each party  shall be  personally  responsible  for the  fulfillment  of all
     obligations,  if any, vis-a-vis brokers or finders assumed by that party in
     respect of the  transactions  agreed herein.  The Seller 1 and the Seller 2
     jointly and  severally  represent and warrant that neither  Chemotrade  nor
     Chemotrade  Leipzig  is  subject  to any  obligation  vis-a-vis  brokers or
     finders.

5.   If a provision of this Agreement should be or become invalid or not contain
     a  necessary  regulation,  the  validity  of the other  provisions  of this
     Agreement  shall not be affected  thereby.  The invalid  provision shall be
     replaced,  or the gap be  filled,  by a  legally  valid  arrangement  which
     corresponds  as closely as possible to the intention of the parties or what
     would  have been the  intention  of the  parties  according  to the aim and
     purpose of this Agreement if they had recognized the gap. If a provision of
     this  Agreement  should be invalid  because of its scope of  application in
     terms of timing, territory or nature such invalid provision shall be deemed
     having been agreed upon with the maximum scope of application  permitted by
     law.

6.   Isonics  hereby  assumes joint and several  liability  for all  obligations
     undertaken by the Purchaser in this Agreement.

7.   The  Schedules  to  this  Agreement  shall  form an  integral  part of this
     Agreement.  The headings in this Agreement  shall only serve the purpose of
     easier  orientation  and shall be of no  consequence  for the  contents and
     interpretation  of this Agreement.  Statements in one provision or Schedule
     of this  Agreement


<PAGE>
                                                                              37


     shall be  deemed  to have  been  made  also for the  purposes  of all other
     provisions and Schedules of this Agreement.

8.   This Agreement shall be governed by German law.

9.   The  English  version  of this  Agreement  shall  be  binding,  except  for
     explanatory  additions  in  this  Agreement  and  Schedules  in the  German
     language for which the German version shall be binding.





                                    Agreement

between

Helmut Swyen
Am Oberen Feld 105, 40668 Meerbusch
("Seller 1")

Herbert Hegener
Sebastiansweg 20, 40231 Dusseldorf
("Seller 2")


Des-Dur Vermogensverwaltungs GmbH, Hallbergmoos
AG Munchen HRB 120192
duly represented by its managing director Dr. Andreas Rodin
("Purchaser")


Isonics Corporation
4010 Moorpark Avenue, Suite 119
San Jose, CA 95117, U.S.A.
duly represented by its managing director Jim Alexander.


WHEREAS,  the  parties  hereto  have  entered  on May 29,  1998  into a sale and
purchase  agreement  relating to all shares in the  registered  share capital of
Chemotrade  Chemiehandelsgesellschaft  mbH, Dusseldorf ("Chemotrade"),  notarial
deed no. 28/1998 of the notary-public Wilhelm Hebing, Berlin;

WHEREAS, the Purchaser has purchased from the Seller 1 and the Seller 2, and the
Seller 1 and the  Seller 2 have  sold to the  Purchaser,  all  their  Chemotrade
shares under said notarial deed;



<PAGE>
                                                                               2


WHEREAS, the Chemotrade shares shall be assigned on the Closing Date (as defined
in the sale and  purchase  agreement)  by the  Seller 1 and the  Seller 2 to the
Purchaser  against (i) payment of DM 1.5 million plus interest thereon at a rate
of 10% p.a. from July 1, 1998 until the Closing Date to each of the Seller 1 and
the Seller 2 (in aggregate DM 3 million),  and (ii)  delivery of 178,865  common
shares  of  Isonics  Corporation  to each of the  Seller 1 and the  Seller 2 (in
aggregate 357,730 common shares);

WHEREAS,  Chemotrade  has an  account  payable to  Isonics  Corporation  of US-$
924,000 and has an account receivable in the amount of US-Dollar 1,018,500;

WHEREAS,  the parties hereto intend to modify the sale and purchase agreement in
respect of the obligations to be satisfied by the Purchaser on the Closing date;

Now, therefore, the parties hereto agree as follows:

1.       Isonics  Corporation  hereby  assigns  to  the  Purchaser  its  account
         receivable  from  Chemotrade  in the  amount  of  US-$924,000  and  the
         Purchaser  hereby accepts such  assignment.  Isonics  Corporation  will
         account  for  such  assignment  as  an  investment  in  the  Purchaser.
         Chemotrade hereby confirms the assignment. Isonics Corporation confirms
         that  it has not  otherwise  disposed  of its  account  receivable  and
         represents  and  warrants  that such  assignment  does not  violate any
         arrangement, agreement or undertaking of Isonics Corporation.

<PAGE>
                                                                               3


2.       Chemotrade  hereby  pledges and assigns by way of security  its account
         receivable  in  the  amount  of   US-$1,018,500  to  the  Purchaser  as
         collateral  for  Chemotrade's  account  payable to the Purchaser in the
         amount of US-$924,000.

3.       The Purchaser hereby assigns its account  receivable from Chemotrade in
         the amount of  US-$1,018,500  in two equal  instalments  of US-$462,000
         each to the Seller 1 and the Seller 2 and the Seller 1 and the Seller 2
         hereby accept such  assignment.  Chemotrade  confirms the assignment by
         the Purchaser to the Seller 1 and the Seller 2 and undertakes in favour
         of the  Seller  1 and  the  Seller  2 not  to  dispose  of its  account
         receivable up to the amount of US-$1,018,500  other than in fulfilment/
         satisfaction  of the  account  payable  in the  amount  of  US-$924,000
         assigned by the Purchaser to the Seller 1 and the Seller 2.

4.       The  Purchaser  and the  Seller 1 and the  Seller  2 agree  that on the
         Closing  Date the  Chemotrade  shares shall be assigned by the Seller 1
         and the Seller 2 to the  Purchaser  against  (i) a cash  payment by the
         Purchaser to the Seller 1 and the Seller 2 in the  aggregate  amount of
         DM  1,336,800  plus  interest  thereon  a rate of 10% from July 1, 1998
         until the  Closing  Date,  (ii)  delivery by the  Purchaser  of 178,865
         common  shares of Isonics  Corporation  to each of the Seller 1 and the
         Seller 2, and (iii) an  undertaking  of the  Purchaser in favour of the
         Seller 1 and the Seller 2 to pay  interest  on the  account  receivable
         from  Chemotrade in the amount of US-$924,000 at a rate of 2% per month
         from July 1, 1998 through the date of receipt of the account receivable
         by the Seller 1 and the Seller 2.

5.       Isonics Corporation  guarantees all obligations undertaken hereunder by
         the Purchaser.  This Agreement and the  assignments  and the pledge set
         forth herein shall be governed by German law.

Dusseldorf, July 15, 1998



<PAGE>
                                                                               4

- ----------------------------------------------------
          -------------------------------------------------------

Herbert Hegener                                               Helmut Swyen



Berlin, July 16, 1998


- ---------------------------------------------
Des-Dur Vermogensverwaltungsgesellschaft GmbH
Dr. Andreas Rodin


San Jose, July 16, 1998


- --------------------------------------------------------------------------------
Isonics Corporation
Jim Alexander






                                                                    News Release

FOR RELEASE JUNE 1, 1998 AT 7:30 AM EDT
- ---------------------------------------
Contact:     Matt Clawson (investors)      or            Paul J. Catuna
             Owen Daley (media)                          Vice President, Finance
             Allen & Caron, Inc                          Isonics Corporation
             (714) 252-8440                              (408) 260-0155


                   ISONICS CORPORATION ANNOUNCES IT HAS AGREED
                           TO ACQUIRE CHEMOTRADE GMBH

SAN JOSE,  CA (June 1, 1998) . . . Isonics  Corporation  (OTC:  ISON)  announced
today  that  it  has  signed  a  definitive  agreement  to  acquire  Dusseldorf,
Germany-based  Chemotrade  GmbH, a privately  held company  that  supplies  both
stable and radioactive isotopes to customers world-wide. In business since 1990,
Chemotrade  had sales of over $7 million for its fiscal year ended  December 31,
1997 and has been profitable since its first year of operation.

Isonics has agreed to pay  approximately  $3.6 million in a combination of cash,
notes,  and  restricted  Isonics  common  stock.  A  substantial  portion of the
purchase price is contingent  upon the future  performance  of  Chemotrade.  The
number of shares of Isonics  stock to be issued  will be based upon the  average
closing price of Isonics  stock for the 10 trading days  preceding and 5 trading
days following the signing.  The transaction is expected to close before the end
of  August,  subject  to the  completion  of due  diligence  and  other  closing
conditions.  Chemotrade will operate as a wholly owned  subsidiary with existing
management remaining in place.

Isonics  President & CEO James E.  Alexander  commented,  "Chemotrade  primarily
markets  isotopes and related  products  that are not  competitive  with Isonics
products,  so their  revenues and profits will be  completely  incremental.  The
acquisition of Chemotrade  also opens the European market and provides access to
key  customers  for  Isonics  products.  While  Chemotrade  has  several  supply
relationships for their  radioisotope  products in the United States, we believe
we can help them dramatically expand their North American market share."

"Chemotrade's expertise in radioisotopes provides Isonics a new opportunity with
a large potential upside."  Alexander added, "They now supply Iodine-125,  which
is used in surgical implants to treat prostate cancer.  Chemotrade management is
considering  strategies related to manufacturing the actual radioactive  `seeds'
as well as developing other  brachytherapy  products in partnership with medical
device companies."


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                4010 Moorpark Ave. Suite 119 o San Jose CA 95117
                      (408) 260-0155 o Fax (408) 260-2110

<PAGE>


ISONICS CORPORATION TO ACQUIRE CHEMOTRADE GMBH
Page 2-2-2


Chemotrade was  co-founded  and is managed by Herbert  Hegener and Helmut Swyen.
According to Swyen,  "During the  structuring of this deal, we have come to know
Isonics  management  personnel and  appreciate  their overall  corporate  growth
strategy. The strategic fit between our companies is excellent.

"Isonics'  access to  technology,  obtained  through its joint  venture with the
Institute of Stable Isotopes in Tblisi,  Georgia,  combines well with the German
government's  economic development programs for creating high technology jobs in
the former East Germany" he said. "It also provides an  outstanding  opportunity
for creating the only `domestic'  source of the stable isotope Carbon-13 for the
emerging European diagnostic breath test market."

Isonics is a specialty  chemical and advanced  materials  company which develops
and commercializes  products based on enriched stable isotopes.  Stable isotopes
can  be  thought  of  as  ultra-ultra  pure  materials.   This  high  degree  of
purification  provides  enhanced  performance   properties  compared  to  normal
materials.  Stable  isotopes have  commercial  uses in several areas,  including
energy; research, medical diagnostics, and drug development; product tagging and
stewardship; semiconductors; lasers; and optical materials.

Except for  historical  information  contained  herein,  this document  contains
forward-looking   statements  within  the  meaning  of  the  Private  Securities
Litigation Reform Act of 1995. These statements  involve known and unknown risks
and uncertainties  that may cause the Company's actual results or outcomes to be
materially different from those anticipated and discussed herein,  including the
risk that the  acquisition  may not close due to a variety  of  reasons  and the
risks  inherent in acquiring a company in  Chemotrade's  industry,  and the risk
that future business and technology  acquisitions may not occur for a variety of
reasons,  including  the  unavailability  of  financing.  Further,  the  Company
operates  in  industries  where  securities  values may be  volatile  and may be
influenced  by  regulatory  and other  factors  beyond  the  Company's  control.
Important  factors that the Company  believes might cause such  differences  are
discussed  in the risk  factors  detailed  in the  Company's  Prospectus,  dated
September  22,  1997,  and its recent  10-QSB's  filed with the  Securities  and
Exchange Commission. In assessing  forward-looking  statements contained herein,
readers are urged to carefully read all cautionary statements contained in those
filings with the Securities and Exchange Commission.


                                     # # # #




                                                                    News Release

FOR RELEASE JULY 21, 1998 AT 7:30 AM EDT
- ----------------------------------------
Contact:     Matt Clawson (investors)      or            Paul J. Catuna
             Owen Daley (media)                          Vice President, Finance
             Allen & Caron, Inc                          Isonics Corporation
             (714) 252-8440                              (408) 260-0155


                          ISONICS CORPORATION COMPLETES
                           CHEMOTRADE GMBH ACQUISITION

SAN JOSE,  CA (July 21, 1998) . . . Isonics  Corporation  (OTC:  ISON)  reported
today that it completed its  previously  announced  acquisition  of  Dusseldorf,
Germany-based  Chemotrade GmbH for $2.5 million in a combination of cash, notes,
and restricted Isonics common stock. Additional consideration of $1.1 million is
payable  over  the  next  three  years  based  on  Chemotrade   meeting   future
profitability  targets.  Chemotrade,  a supplier of both stable and  radioactive
isotopes to  customers  world-wide,  had sales of over $7 million for its fiscal
year  ended  December  31,  1997 and has been  profitable  in each of the past 7
years.  The Company will operate as a wholly  owned  subsidiary  of Isonics with
existing management remaining in place.

Isonics  President  & CEO James E.  Alexander  commented,  "The  acquisition  of
Chemotrade  not only  opens  the  European  market  and  provides  access to key
customers  for Isonics  products,  it also expands our product  lines to include
radioisotopes  used in  medical  diagnostics  and  therapeutics.  Our goal is to
leverage  Chemotrade's current European market position while implementing plans
to bring our stable isotope production capabilities to western Europe."

Isonics is a specialty chemical and advanced  materials company,  which develops
and commercializes  products based on enriched stable isotopes.  Stable isotopes
can  be  thought  of  as  ultra-ultra  pure  materials.   This  high  degree  of
purification  provides  enhanced  performance   properties  compared  to  normal
materials.  Stable  isotopes have  commercial  uses in several areas,  including
energy; research, medical diagnostics, and drug development; product tagging and
stewardship; semiconductors; lasers; and optical materials.

Except for  historical  information  contained  herein,  this document  contains
forward-looking   statements  within  the  meaning  of  the  Private  Securities
Litigation Reform Act of 1995. These statements  involve known and unknown risks
and uncertainties  that may cause the Company's actual results or outcomes to be
materially  different from those  anticipated and discussed herein including the
risks inherent in acquiring a company in Chemotrade's industry (e.g., assumption
of known and unknown liabilities, including environmental liabilities). Further,
the Company operates in industries  where securities  values may be volatile and
may be influenced by regulatory and other factors beyond the Company's  control.
Other important  factors that the Company  believes might cause such differences
are discussed in the risk factors  detailed in the Company's  Prospectus,  dated
September  22,  1997,  and its recent  10-QSB's  filed with the  Securities  and
Exchange Commission. In assessing  forward-looking  statements contained herein,
readers are urged to carefully read all cautionary statements contained in those
filings with the Securities and Exchange Commission.

                                     # # # #

                4010 Moorpark Ave. Suite 119 o San Jose CA 95117
                      (408) 260-0155 o Fax (408) 260-2110



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