Document:

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                                                                   EXHIBIT 10.11
                                                                   -------------
                           U.S. DEPARTMENT OF ENERGY
                     NOTICE OF FINANCIAL ASSISTANCE AWARD

Under the authority of Public Law 102-486, Energy Policy Act of 1992       and
                                  ----------------------------------------
subject to legislation, regulations and policies applicable (cite legislative
program) NA

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                                                                     2. INSTRUMENT TYPE
1. PROJECT TITLE
Integrated Renewable Hydrogen Utility System                         [_] GRANT       [X] COOPERATIVE AGREEMENT
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3. RECIPIENT (Name, address, zip code, area code and telephone No.)  4. INSTRUMENT NO.                  5. AMENDMENT NO.
Proton Energy Systems, Inc.                                                  DE-FC36-98GO10341                 A000
50 Inwood Road
Rocky Hill, CT 06067
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                                                                                   FROM: 4/15/1998                FROM: 4/15/1998
8. RECIPIENT PROJECT DIRECTOR (Name and telephone No.)               6. BUDGET                       7. PROJECT
Mr. Robert Friedland, Program Manager                                   PERIOD     THRU: 9/30/1999      PERIOD    THRU: 9/30/2002
(860) 571-6533, ext. 15, FAX: 860-571-6505

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9. RECIPIENT BUSINESS OFFICER (Name and telephone No.)               10. TYPE OF AWARD
Mr. William Smith                                                    [X] NEW                 [_] CONTINUATION       [_] RENEWAL
(860) 571-6533, ext. 14, FAX: 860-571-6505                           [_] REVISION            [_] SUPPLEMENT

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11. DOE PROJECT OFFICER (Name, address, telephone No.)               12. ADMINISTERED FOR DOE BY (Name, address, telephone No.)
Doug Hooker (303) 275-4780                                           Beth H. Peterman (303) 275-4719
Golden Field Office                                                  Golden Field Office
1617 Cole Blvd.                                                      1617 Cole Blvd.
Golden, CO 80401                                                     Golden, CO 80401

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                                                                                                                [_] INDIVIDUAL
                        [_] STATE GOV'T   [_] INDIAN TRIBAL GOV'T     [_] HOSPITAL          [X] FOR PROFIT
13. RECIPIENT TYPE                                                                              ORGANIZATION    [_] OTHER (specify)
                        [_] LOCAL GOV'T   [_] INSTITUTION OF          [_] OTHER NONPROFIT
                                              HIGHER EDUCATION            ORGANIZATION      [X] C  [_] P [_] SP ------------------
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14. ACCOUNTING AND APPROPRIATIONS DATA                                                             15. EMPLOYER I.D. NUMBER/SSN
                                                                                                   TIN/SSN:    06-1461988
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a. Appropriation Symbol    b. B & R Number    c. FT/AFP/OC        d. CFA Number                    DUNS:  96-030-6785
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     8980224.91Y8              EB4200000         AL/8491/410           N/A
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16. BUDGET AND FUNDING INFORMATION
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    A. CURRENT BUDGET PERIOD INFORMATION                             B. CUMULATIVE DOE OBLIGATIONS
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                                                                     (1) This Budget Period
(1) DOE Funds Obligated This Action                $  215,000.00         [Total of lines a.(1) and a.(3)]            $  215,000.00
                                                   -------------                                                     -------------
(2) DOE Funds Authorized for Carry Over            $        0.00     (2) Prior Budget Periods                        $        0.00
                                                   -------------                                                     -------------
(3) DOE Funds Previously Obligated in This                           (3) Project Period to Date
Budget Period                                      $        0.00         [Total of lines b.(1) and b.(2)]            $  215,000.00
                                                   -------------                                                     -------------
(4) DOE Share of Total Approved Budget             $  366,230.00
                                                   -------------
(5) Recipient Share of Total Approved Budget       $  366,230.00
                                                   -------------
(6) Total Approved Budget                          $  732,460.00
                                                   -------------
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17. TOTAL ESTIMATED COST OF PROJECT $3,000,000.00
                                    --------------------------------------
    (This is the current estimated cost of the project. It is not a promise to award nor an authorization to expend funds in this
    amount.)
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18. AWARD/AGREEMENT TERMS AND CONDITIONS
    This award/agreement consists of this form plus the following:
        a. Special terms and conditions (if grant) or schedule, general provisions, special provisions (if cooperative agreement)
        b. Applicable program regulations (specify) N.A.                                              (Date) ___________________
                                                    -----------------------------------------------
        c. DOE Assistant Regulations, 10 CFR Part 600, as amended, Subparts A and [_] B (Grants)  or [X] C (Cooperative Agreements).
        d. Application/proposal dated 10/2/97, 3/20/98, and 4/10/98               [_] as submitted   [X] with changes as negotiated.
                                      -----------------------------------------                                   5/12/1988
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19. REMARKS
* See Appendix C provision entitled "Notice of Partial Funding."

See Appendices A through D of this award, which contain all its terms and conditions.
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20. EVIDENCE OF RECIPIENT ACCEPTANCE                                 21. AWARDED BY
                                                                         /s/ Beth H. Peterman                          5/21/98
____________________________________________________________         ------------------------------------------------------------
(Signature of Authorized Recipient Official)      (Date)                                    (Signature)                 (Date)

                                                                                         Beth H. Peterman
____________________________________________________________         ------------------------------------------------------------
                          (Name)                                                                (Name)

                                                                                          Contracting Officer
____________________________________________________________         ------------------------------------------------------------
                         (Title)                                                                (Title)

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                                  APPENDIX A

                               DE-FC36-98GO10341

                         GENERAL TERMS AND CONDITIONS
                                      FOR
                          FINANCIAL ASSISTANCE AWARDS
<PAGE>

                                   APPENDIX A

          GENERAL TERMS AND CONDITIONS FOR FINANCIAL ASSISTANCE AWARDS
          ------------------------------------------------------------

                               Table of Contents
                               -----------------

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Number  Subject                                                         Page
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<S>                                                                     <C>
1.      Explanation of Contents of Award............................     2
2.      Definitions.................................................     2
3.      Order of Preference.........................................     3
4.      Prior Approvals.............................................     3
5.      Allowable Costs/Applicable Cost Principles..................     4
6.      Continuations, Renewals and Extensions......................     5
7.      Cost Sharing................................................     6
8.      Transfer of Funds and Programmatic Effort...................     6
9.      Nondiscrimination...........................................     7
10.     Public Access to Information................................     7
11.     Acknowledgment in Any Publications of DOE Support...........     7
12.     Foreign Travel..............................................     7
13.     Liabilities and Losses......................................     7
14.     Permits and Responsibilities................................     8
15.     Purchase of American-made Equipment and Products-
        Sense of Congress...........................................     8
16.     Suspension and Termination..................................     8
17.     Notice Regarding Eligible/Ineligible Activities.............     9
18.     Notice Regarding Unallowable Costs and Lobbying Activities..     9
19.     Notice Regarding Reporting Requirements.....................     9
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1.   EXPLANATION OF AWARD CONTENTS
     -----------------------------

     a.   These general terms and conditions included 'in this Appendix A
          neither restate all the provisions of the applicable statutes and
          regulations, nor represent an exhaustive listing of all requirements
          applicable to this award. Rather, they highlight and are consistent
          with those requirements which are especially pertinent to financial
          assistance awards by the Golden Field Office (GO) Head of Contracting
          Activity (HCA) in general, which includes the six DOE Regional Support
          Offices. They are emphasized by inclusion here because: (1) they are
          invoked with high frequency; and (2) their violation is a matter of
          especially serious concern.

     b.   In addition to these general terms and conditions, the recipient must
          comply with all governing requirements of this award, including those
          identified in the DOE F 4600.1, "Notice of Financial Assistance
          Award," as well as those included in the other Appendices to this
          award, specifically: (1) Appendix B, "Intellectual Property
          Provisions;" (2) Appendix C, "Additional Provisions;" and (3) Appendix
          D, "Statement of Work/Objectives, Budget and Reporting Requirements."
          The recipient is obligated to provide management and technical
          direction of the project, to manage the funds with prudence, to
          prepare required reports and to comply with the provisions outlined
          herein.

     c.   The recipient's signature on the application and on the DOE F 4600.1
          award signifies recipient agreement to all terms and conditions of the
          award. Should the recipient believe an amendment of any of the terms
          and conditions of this award is necessary, an authorized official of
          the recipient organization or, in the case of an individual, the
          recipient must submit a written request to the Contracting Officer on
          its own behalf, or on behalf of any subgrant or contractor awardee,
          for prior approval.

     d.   This award is funded on an allowable cost basis without fee or profit,
          not to exceed the amount awarded as indicated on the face page, and is
          subject to a refund of unexpended but invoiced DOE funds. The
          recipient is expected to bring this project to a conclusion within the
          funds provided if the end date of the project period and the end date
          of the budget period, both specified on the face page, are the same.
          If however, the end date of the project period is later than the end
          date of the budget period, the recipient is expected to bring the
          phase of the project covered by the budget period to its conclusion
          within the funds provided. It is stressed that, in either case, there
          is no commitment by DOE to provide any additional funds to the
          recipient.

2.   DEFINITIONS
     -----------

     a.   Principal Investigator  As used herein, the scientist or other
          ----------------------
          programmatic expert named in block 8 of DOE F 4600.1 designated by the
          organization to direct the scientific/technical efforts being
          supported (also called program director or project director/leader).
          The Principal Investigator as well as any other key personnel for this
          award are identified in Appendix C of this award. (Also see Provision
          4 below.)

                                       2
<PAGE>

     b.   Prior Approval  A statement in writing, signed by the Contracting
          --------------
          Officer, prior to the incurrence of a cost or specifying that a cost
          may be incurred, or prior to an action or specifying that an action
          may be taken. The approval may take the form of a letter or a revision
          to the award. If actions or costs requiring prior approval are
          specified in the application and are not expressly disapproved by DOE
          in Appendix C of this award, the award of the action constitutes such
          prior approval. (Also see Provision 4 below.)

     c.   Research Awards  An award for any scientific or engineering activity
          ---------------
          which (1) constitutes a systematic, intensive study directed
          specifically toward greater knowledge or understanding of the subject
          studied and contributes to a continuing flow of new knowledge; or (2)
          is directed toward applying new knowledge to meet a recognized need;
          and/or (3) applies such knowledge toward the production of useful
          methods, including design, development and improvement of prototypes
          and new processes to meet established requirements.

     d.   Recipient  The organization, individual, or other entity that receives
          ---------
          an award from DOE and is financially accountable for the use of any
          DOE funds or property provided for the performance of the project, and
          is legally responsible for carrying out the terms and conditions of
          the award.

     e.   Continuation award  An award for a succeeding or subsequent budget
          ------------------
          period after the initial budget period of either an approved project
          period or renewal thereof.

     f.   Extension  An amendment of an award, which would otherwise expire, to
          ---------
          provide additional time, and if appropriate, additional funds for
          completion of project activities.

     g.   Renewal award  An award which extends a project period by adding one
          -------------
          or more additional budget periods and which makes an award of DOE
          financial assistance for at least the first budget period of the
          extended project period.

3.   ORDER OF PRECEDENCE
     -------------------

     Any inconsistency in this award shall be resolved by giving precedence in
     the following order: (1) statutory provisions; (2) Code of Federal
     Regulations, Part 600 and any other applicable Subpart Program Rule(s), and
     applicable OMB Circular provisions; and (3) General and Additional terms
     and conditions and provisions of this award (Appendices A, B C and D), to
     include any Attachments.

4.   PRIOR APPROVALS
     ---------------

     All requests for prior approval must be signed by an individual who is
     authorized to act for the recipient organization.  Requests for budget
     revisions shall be made using the same budget format as used in applying
     for the award and must be supported by a narrative justification.  Other
     prior approval requests may be made by letter.  Prior approval requests
     should be addressed to the contracting officer named on the face page of
     this award.

                                       3
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5.   ALLOWABLE COSTS/APPLICABLE COST PRINCIPLES
     ------------------------------------------

     a.   In accordance with 10 CFR Part 600.121, "Standards for financial
          management systems," 600.127, "Allowable Costs", and the applicable
          cost principles cited below, the allowable costs of this award shall
          consist of the actual allowable direct costs incident to performance
          of the project, plus the allocable portion of the allowable indirect
          costs, if any, of the organization, less applicable credits.  The
          allowable costs shall not exceed the amount shown on the face page of
          this award for the total approved budget for the current budget period
          (line 16a.(6), DOE F 4600.1, "Notice of Financial Assistance Award").

     b.   The allowability of costs for work performed under this award and any
          subsequent subaward will be determined in accordance with the Federal
          cost principles applicable to the recipient, or sub-recipient, in
          effect on the date of award or the date of the subaward, except as
          modified by other provisions of this award or the subaward. The
          recipient or subreciplent shall specify in any cost-reimbursement
          contract under the award or subaward the applicable cost principles
          cited in this provision that apply to the contractor.

     c.   The Federal cost principles applicable to specific types of
          recipients, sub-recipients, and contractors under awards and subawards
          are as follows:

          (1)  Institutions of Higher Education  Office of Management and Budget
               --------------------------------
               (OMB) Circular A-21, "Cost Principles Applicable to Grants,
               Contracts, and Other Agreements with Institutions of Higher
               Education," is applicable to both public and private colleges and
               universities.

          (2)  State and Local Governments and Indian Tribal Governments OMB
               ---------------------------------------------------------
               Circular A-87, "Cost Principles Applicable to Grants, Contracts
               and Other Agreements with State and Local Governments," is
               applicable to State, local, and Indian tribal governments. and
               shall also be used to the extent appropriate for foreign
               governments.

          (3)  Hospitals  Title 45 CFR Part 74, Appendix E, "Principles for
               ---------
               Determining Costs Applicable to Research and Development under
               Grants and Contracts with Hospitals," applies to nonprofit and
               for profit hospitals.

          (4)  Other Nonprofit Organizations and Individuals  OMB Circular A-
               ---------------------------------------------
               122, "Cost Principles Applicable to Grants, Contracts, and Other
               Agreements with Nonprofit Organizations," applies to nonprofit
               organizations and individuals, except for those specifically
               exempted by the terms of the circular or those nonprofit
               organizations and individuals covered by the cost principles
               cited in paragraph 6.c.(1), (2), or (3) above.

          (5)  Commercial Firms and Certain Nonprofit Organizations  Title 48
               ----------------------------------------------------
               CFR Subpart 31.2, "Contracts with Commercial Organizations," as
               supplemented by 48 CFR Subpart 931.2, applies to those nonprofit

                                       4
<PAGE>

               organizations not covered by OMB Circular A-122, and to all
               commercial organizations not covered by the cost principles in
               paragraph 6.c.(3).

6.   CONTINUATIONS, RENEWALS AND EXTENSIONS
     --------------------------------------

     a.   Continuations  Recipients are responsible for ensuring that properly
          -------------
          completed applications for continuation awards are received no later
          than five (5) months prior to the expiration date of the current
          budget period shown on the DOE F4600.1, "Notice of Financial
          Assistance Award." Continuation applications shall be provided using
          the forms indicated by the Contracting Officer, and include the items
          indicated at 10 CFR 600.26(b), as follows:

          (1)  A statement of technical progress or status of the project to
               date;

          (2)  A detailed description of the recipient's plans for the conduct
               of the project during the budget period; and

          (3)  A detailed budget for the upcoming budget period, including an
               estimate of unobligated balances.  For research awards, a
               detailed budget need not be submitted if the continuation
               application contains future-year budgets sufficiently detailed to
               allow DOE to review and approve the categories and elements of
               costs.  Should the research award have a change in scope or
               significant change in the budget, DOE may request a detailed
               budget.

          DOE shall review a continuation application for the adequacy of the
          recipient's progress and planned conduct of the project in the
          subsequent budget period.  DOE shall not require a continuation
          application to compete against any other application.  The amount and
          award of continuation funding is subject to the availability of funds.

     b.   Renewals  If a recipient wishes to apply for a renewal award to
          --------
          receive funding beyond the scheduled expiration of the existing
          project period, a properly completed application, in accordance with
          the instructions provided by the Contracting Officer, must be
          submitted to DOE no later than five (5) months prior to the scheduled
          expiration date of the project period, as shown in Block 7 of the DOE
          F4600.1.

     c.   Extensions  Recipients of research awards may extend the expiration
          ----------
          date of the final budget period of the project, thereby extending the
          project period, if additional time beyond the established expiration
          date is needed to ensure adequate completion of the original scope of
          work within the funds currently available. A single extension, which
          shall not exceed twelve (12) months, may be made for this purpose, and
          must be made prior to the originally established expiration date. The
          recipient must notify the Contracting Officer in writing within ten
          (10) days of making the extension.

          Recipients may request and the Contracting officer may approve the
          extension of ANY budget period of any type of assistance instrument
          without the need for competition or a justification of restricted
          eligibility if:  (1) In the case of

                                       5
<PAGE>

          the final budget period of a project period, the additional time
          necessary is eighteen (18) months or less in total, or for all other
          budget periods, the additional time necessary is six (6) months or
          less in total; and (2) The recipient submits a written request for
          extension before the expiration date of the budget period in process
          and includes a justification for the extension along with an
          expenditure plan for the use of any additional funds requested. An
          expenditure plan need not be provided when no additional funds are
          requested, unless the recipient intends to rebudget funds in such a
          way as to require DOE prior approval or unless the recipient is
          instructed otherwise by the Contracting Officer.

          DOE may retroactively extend an expired budget period provided that
          the request for such extension is submitted within no later than 30
          days after its expiration, the recipient can satisfactorily explain
          why the request was not submitted prior to the expiration date, and
          the Contracting Officer determines that the request would have been
          approved had it been submitted in a timely manner.

7.   COST SHARING
     ------------

     a.   As shown on the face page of the award, any cost sharing shall defray
          only the allowable costs of the project in accordance with the
          statutes, regulations, applicable cost principles, and other terms and
          conditions governing the award. Cost sharing contributions may be
          incurred either as direct or indirect costs, and include cash or
          third-party in-kind contributions by the recipient, its subrecipients,
          or contractors. The cost sharing may be in any allowable budget
          category or combination of categories. When a direct cost item
          represents some or all of the non-federal contribution, any associated
          indirect costs may not be charged to Federal funds but may be counted
          as part of the cost sharing. The classification of contributed costs
          as direct or indirect must be consistent with the classification of
          similar items charged to DOE funds.

     b.   Valuation of third-party-in-kind contributions and documentation of
          cost sharing shall be in accordance with 10 CFR Part 600.123.

     c.   Specific cost sharing amounts/percentages for this award are provided
          in Appendix C of this award.

8.   TRANSFERS OF FUNDS AND PROGRAMMATIC EFFORT
     ------------------------------------------

     a.   Transfers of funds between DOE awards, and transfers of funds from a
          DOE project (or portion of a project) not supported by that award,
          requires the prior approval of DOE. The transfer of funds into a DOE
          award-supported project from an award by another federal agency does
          not require DOE approval, but may require the approval of the other
          federal agency. Funds so transferred from the award of another federal
          agency may not be used to satisfy ANY cost sharing requirement
          (federal or recipient) in a DOE award.

     b.   None of the substantive effort of the project may be transferred by
          contract or subgrant to another organization or person without the
          prior approval of DOE. This provision does not apply to the
          procurement of equipment, supplies,

                                       6
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          materials, or general support services, these services may, however,
          be subject to other prior approval requirements (e.g., those found in
          the applicable cost principles or procurement standards).

9.   NONDISCRIMINATION
     -----------------

     This award is subject to the provisions of 10 Code of Federal Regulations
     (CFR) 1040.4(b), Nondiscrimination in Federally Assisted Programs. The
     recipient has certified on the DOE Form 1600.5, U.S. DOE "Assurance of
     Compliance," its commitment to comply with this law. Recertification is
     required at time of continuation or renewal of this award, or annually,
     whichever is less.

10.  PUBLIC ACCESS TO INFORMATION
     ----------------------------

     The recipient recognizes that any documents it submits to DOE under this
     award are subject to public disclosure under the Freedom of Information Act
     ("Act"), as amended, and the DOE Implementing Regulations (10 CFR 1004).
     The Act requires public access to information in DOE's possession, unless
     that information is protected under an exemption to the Act and does not
     require recipients, their sub-recipients or their contractors to permit
     public access to their records. An exemption to the Act protects trade
     secrets and confidential, commercial and financial information submitted by
     the recipient. Prior to responding to a request for the recipient's
     information in the possession of DOE, DOE will obtain the recipient's views
     on whether the information should be exempted.

11.  ACKNOWLEDGMENT OF DOE SUPPORT IN ANY PUBLICATIONS
     -------------------------------------------------

     Publication of the results of this award is encouraged subject to any
     applicable restrictions in 10 CFR 600.27 (Patents, Data and Copyrights).
     Any article published shall include an acknowledgment that the research was
     supported, in whole or in part, by a DOE award (with the award number) and
     a statement that such support does not constitute an endorsement by DOE of
     the views expressed in the article.

12.  FOREIGN TRAVEL
     --------------

     Foreign travel is any travel outside Canada and the United States and its
     territories and possessions or for recipients located in another country,
     travel outside that country.  The International Air Transportation Fair
     Competitive Practices Act of 1974 (49 U.S.C. 1517) (Fly America Act)
     requires Federal recipients to use U.S. flag carriers for Government-
     financed international air travel to the extent these carriers are
     available.  A recipient contemplating the use of non-U.S. flag carriers
     shall consult with the DOE Contracting Officer prior to the trip.

13.  LIABILITIES AND LOSSES
     ----------------------

     Except as provided in the Federal Tort Claims Act, DOE assumes no
     responsibility with respect to any damages or loss arising out of any
     activities undertaken with the financial support of this award.  DOE and
     the recipient make no express or implied warranty as to the conditions of
     the research, or any intellectual property, or product made or developed
     under this award, or the ownership, merchantability or fitness for a
     particular purpose of the research or resulting product.

                                       7
<PAGE>

14.  PERMITS AND RESPONSIBILITIES
     ----------------------------

     The recipient shall be responsible for obtaining any necessary licenses
     and/or permits and for complying with applicable federal, state and
     municipal laws, codes, and regulations in connection with the execution of
     the work hereunder.  The recipient shall take proper safety and health
     precautions to protect the work, the workers, and the property of others.

15.  NOTICE REGARDING PURCHASE OF AMERICAN-MADE EQUIPMENT AND PRODUCTS - SENSE
     -------------------------------------------------------------------------
     OF CONGRESS
     -----------

     It is the sense of the Congress that, to the greatest extent practicable,
     all equipment and products purchased with funds made available under this
     award should be American-made.

16.  SUSPENSION AND TERMINATION
     --------------------------

     a.   Awards may be suspended, or terminated in whole or in part, only if
          paragraph (a)(1), (2), (3) or (4) of this provision apply.

          (1)  By DOE, if a recipient materially fails to comply with the terms
               and conditions of an award, or is debarred from providing goods
               or services to the Federal Government. Normally, DOE action to
               suspend or terminate an award for cause will be taken only after
               DOE has informed the recipient of any deficiency on its part and
               given an opportunity to correct it. However, DOE may immediately
               suspend or terminate the award without prior notice when it
               believes such action is necessary to protect the interests of the
               Government.

          (2)  By DOE with the consent of the recipient, in which case the two
               parties shall agree upon the termination conditions, including
               the effective date and, in the case of partial termination, the
               portion to be terminated.

          (3)  By DOE, if DOE has notice of or has reasonable cause to believe
               that the recipient is insolvent due to facts which indicate the
               recipient is unable to pay its obligations as they mature in the
               ordinary course of business, or if the recipient, its parent, or
               creditors of the recipient, files a petition in bankruptcy
               against, or if a court of competent jurisdiction appoints a
               receiver, trustee, liquidator or conservator with control over
               the business affairs of the recipient.  In such instances, DOE
               may terminate the award in whole or in part, or suspend payments,
               if it is determined in the best interests of DOE to do so.

          (4)  By the recipient upon sending to DOE written notification setting
               forth the reasons for such termination, the effective date, and,
               in the case of partial termination, the portion to be terminated.
               However, if DOE determines in the case of partial termination
               that the reduced or modified portion of the award will not
               accomplish the purposes for which the award was made, it may
               terminate the award in its entirety under either paragraph (a)(1)
               or (2) of this provision.

                                       8
<PAGE>

     b.   If costs are incurred under an award, the responsibilities of the
          recipient referred to in 10 CFR 600.171(a), including those for
          property management as applicable, shall be considered in the
          termination of the award, and provision shall be made for continuing
          responsibilities of the recipient after termination, as appropriate.

17.  NOTICE REGARDING ELIGIBLE/INELIGIBLE ACTIVITIES
     -----------------------------------------------

     Eligible activities under this program include those which describe and
     promote the understanding of scientific and technical aspects of specific
     energy technologies, but not those which encourage or support political
     activities such as the collection and dissemination of information related
     to potential, planned or pending legislation.

18.  NOTICE REGARDING UNALLOWABLE COSTS AND LOBBYING ACTIVITIES
     ----------------------------------------------------------

     Recipients of financial assistance are cautioned to careful review the
     allowable cost and other provisions applicable to expenditures under their
     particular award instruments. If financial assistance funds are spent for
     purposes or in amounts inconsistent with the allowable cost or any other
     provisions governing expenditures in an award instrument, the government
     may pursue a number of remedies against the recipient, including in
     appropriate circumstances, recovery of such funds, termination of the
     award, suspension or debarment of the recipient from future awards, and
     criminal prosecution for false statements.

     Particular care should be taken by the recipient to comply with the
     provisions prohibiting the expenditure of funds for lobbying and related
     activities. Financial assistance awards may be used to describe and promote
     the undemanding of scientific and technical aspects of specific energy
     technologies, but not to encourage or support political activities such as
     the collection and dissemination of information related to potential,
     planned or pending legislation.

19.  NOTICE REGARDING REPORTING REQUIREMENTS
     ---------------------------------------

     Failure to comply with the reporting requirements contained in this award
     will be considered a material noncompliance with the terms of the award.
     Noncompliance may result in withholding of future payments, suspension or
     termination of the current award, and withholding of future awards.  A
     willful failure to perform, a history of failure to perform, or of
     unsatisfactory performance of this and/or other financial assistance
     awards, may also result in a debarment action to preclude future awards by
     Federal agencies.

                                       9
<PAGE>

                                  APPENDIX B

                               DE-FC36-98GO10341

                       INTELLECTUAL PROPERTY PROVISIONS
<PAGE>

                                  APPENDIX B

                 Intellectual Property Provisions - Assistance
                               DE-FC36-98GO10341

                            DOMESTIC SMALL BUSINESS
                   (Research, Development or Demonstration)

<TABLE>
<CAPTION>
  CLAUSE           REFERENCE                                   TITLE                                 PAGE
  ------           ---------                                   -----                                 ----
  <S>        <C>                     <C>                                                         <C>
    01.      48 C.F.R. 52.227-1      Authorization and Consent (JUL 1995), Alternate I                 1

    02.      48 C.F.R. 52.227-2      Notice and Assistance Regarding Patent and Copyright              1
                                     Infringement (APR 1984)
                                     This clause is not applicable if the award is for less
                                     than $100,000.

    03.      48 C.F.R. 952.227-9     Refund of Royalties (MAR 1995)                                    1

    04.      48 C.F.R. 952.227-11    Patent Rights-Retention by Contractor (Short Form) (MAR           2
                                     1995)

    05.      48 C.F.R. 52.227-14     Rights in Data-General (JUN 1987), with Alternates I, II,         8
                                     III and V. And paragraph (d)(3) as supplemented by 10
                                     C.F.R. Part 600.27.

    06.      48 C.F.R. 52.227-16     Additional Data Requirements (JUN 1987)                          15

    07.      48 C.F.R. 52.227-23     Rights to Proposal Data (Technical) (JUN 1987)                   15

    Attachment 1 (for reference):    Patent Rights-Acquisition by the Government (MAR 1995);
                                     48 C.F.R. 952.227-13.
</TABLE>
<PAGE>

01.  52.227-1 Authorization and Consent; Alternate I (APR 1984)

     AUTHORIZATION AND CONSENT

(a)  The Government authorizes and consents to all use and manufacture of any
invention described in and covered by a United States patent in the performance
of this contract or any subcontract at any tier.

(b)  The Contractor agrees to include, and require inclusion of this clause,
suitably modified to identify the parties, in all subcontracts at any tier for
supplies or services (including construction, architect-engineer services, and
materials, supplies, models, samples, and design or testing services expected to
exceed the simplified acquisition threshold); however, omission of this clause
from any subcontract, including those at or below the simplified acquisition
threshold, does not affect this authorization and consent.

(End of clause)

02.  52.227-2 Notice and Assistance Regarding Patent and Copyright Infringement.

     NOTICE AND ASSISTANCE REGARDING PATENT AND COPYRIGHT INFRINGEMENT (APR
     1984)

(a)  The Contractor shall report to the Contracting Officer, promptly and in
reasonable written detail, each notice or claim of parent or copyright
infringement based on the performance of this contract of which the Contractor
has knowledge.

(b)  In the event of any claim or suit against the Government on account of any
alleged patent or copyright infringement arising out of the performance of this
contract or out of the use of any supplies furnished or work or services
performed under this contract, the Contractor shall furnish to the Government,
when requested by the Contracting Officer, all evidence and information in
possession of the Contractor pertaining to such suit or claim. Such evidence and
information shall be furnished at the expense of the Government except where the
Contractor has agreed to indemnify the Government.

(c)  The Contractor agrees to include, and require inclusion of, this clause in
all subcontracts at any tier for supplies or services (including construction
and architect-engineer subcontracts and those for material, supplies, models,
samples, or design or testing services) expected to exceed the dollar amount set
forth in 13.000 of the Federal Acquisition Regulation (FAR).

(End of clause)

03.  952.227-9 Refund of Royalties

     REFUND OF ROYALTIES (FEB 1995)

(a)  The contract price includes certain amounts for royalties payable by the
Contractor or subcontractors or both, which amounts have been reported to the
Contracting Officer.

(b)  The term "royalties" as used in this clause refers to any costs or charges
in the nature of royalties, license fees, patent or license amortization costs,
or the like, for the use of or for rights in parents and parent applications in
connection with performing this contract or any

                                                                         1 of 15
<PAGE>

subcontract hereunder. The term also includes any costs or charges associated
with the access to, use of, or other right pertaining to data that is
represented to be proprietary and is related to the performance of this contract
or the copying of such data or data that is copyrighted.

(c)  The Contractor shall furnish to the Contracting Officer, before final
payment under this contract, a statement of royalties paid or required to be
paid in connection with performing this contract and subcontracts hereunder
together with the reasons.

(d)  The Contractor will be compensated for royalties reported under paragraph
(c) of this clause, only to the extent that such royalties were included in the
contract price and are determined by the Contracting Officer to be property
chargeable to the Government and allocable to the contract. To the extent that
any royalties that are included in the contract price are not, in fact, paid by
the Contractor or are determined by the Contracting Officer not to be property
chargeable to the government and allocable to the contract, the contract price
shall be reduced. Repayment or credit to the Government shall be made as the
Contracting Officer directs. The approval by DOE of any individual payments or
royalties shall not prevent the Government from contesting at any time the
enforceability, validity, scope of, or title to, any patent or the proprietary
nature of data pursuant to which a royalty or other payment is to be or has been
made.

(e)  If, at any time within 3 years after final payment under this contract, the
Contractor for any reason is relieved in whole or in part from the payment of
the royalties included in the final contract price as adjusted pursuant to
paragraph (d) of this clause, the Contractor shall promptly notify the
Contracting Officer of that fact and shall reimburse the Government in a
corresponding amount.

(f)  The substance of this clause, including this paragraph (f), shall be
included in any subcontract in which the amount of royalties reported during
negotiation of the subcontract exceeds $250.

(End of clause)

04.  952.227-11 Patent Rights - Retention by the Contractor (short form)

     PATENT RIGHTS - RETENTION BY THE CONTRACTOR (SHORT FORM) (FEB 1995)

(a)  Definitions.

     (1)   "Invention" means any invention or discovery which is or may be
patentable or otherwise protectable under title 35 of the United States Code, or
any novel variety of plant which is or may be protected under the Plant Variety
Protection Act (7 U.S.C. 2321, et seq.).

     (2)   "Made" when used in relation to any invention means the conception of
first actual reduction to practice of such invention.

     (3)   "Nonprofit organization" means a university or other institution of
higher education or an organization of the type described in section 501(c)(3)
of the Internal Revenue Code of 1954 (26 U.S.C. 501(c)) and exempt from taxation
under section 501 (a) of

                                                                         2 of 15
<PAGE>

the Internal Revenue Code (26 U.S.C. 501 (a)) or any nonprofit scientific or
educational organization qualified under a state nonprofit organization statute.

     (4)   "Practical application" means to manufacture, in the case of a
composition or product: to practice, in the case of a process or method; or to
operate, in the case of a machine or system, and, in each case, under such
conditions as to establish that the invention is being utilized and that is
benefits are, to the extent permitted by law or Government regulations,
available to the public on reasonable terms.

     (5)   "Small business firm" means a small business concern as defined at
section 2 of Pub. L. 85-536 (15 U.S.C. 632) and implementing regulations of the
Administrator of the Small Business Administration. For the purpose of this
clause, the size standards for small business concerns involved in Government
procurement and subcontracting at 13 CFR 121.3-8 and 13 CFR 121.3-12,
respectively, will be used.

     (6)   "Subject invention" means any invention of the contractor conceived
or first actually reduced to practice in the performance of work under this
contract, provided that in the case of a variety of plant, the date of
determination (as defined in section 41(d) of the Plant Variety Protection Act,
7 U.S.C. 2401(d)) must also occur during the period of contract performance.

     (7)   "Agency licensing regulations" and "agency regulations concerning the
licensing of Government-owned inventions" mean the Department of Energy patent
licensing regulations at 10 CFR Part 781.

(b)  Allocation of principal rights. The Contractor may retain the entire right,
title, and interest throughout the world to each subject invention subject to
the provisions of this clause and 35 U.S.C. 203. With respect to any subject
invention in which the Contractor retains title, the Federal Government shall
have a nonexclusive, nontransferable, irrevocable, paid-up license to practice
or have practiced for or on behalf of the United States the subject invention
throughout the world.

(c)  Invention disclosure, election of title, and filing of patent application
by Contractor.

     (1)   The Contractor will disclose each subject invention to the Department
of Energy (DOE) within 2 months after the inventor discloses it in writing to
Contractor personnel responsible for patent matters. The disclosure to DOE shall
be in the form of a written report and shall identify the contract under which
the invention was made and the inventor(s). It shall be sufficiently complete in
technical detail to convey a clear understanding to the extent known at the time
of the disclosure, of the nature, purpose, operation, and the physical,
chemical, biological or electrical characteristics of the invention. The
disclosure shall also identify any publication on sale or public use of the
invention and whether a manuscript describing the invention has been submitted
for publication and, if so, whether it has been accepted for publication at the
time of disclosure. In addition, after disclosure to the DOE, the Contractor
will promptly notify that agency of the acceptance of any manuscript describing
the invention for publication or of any on sale or public use planned by the
Contractor.

     (2)   The Contractor will elect in writing whether or not to retain title
to any such invention by notifying DOE within 2 years of disclosure to DOE.
However, in any case where publication, on sale or public use has initiated the
1-year statutory period wherein valid

                                                                         3 of 15
<PAGE>

patent protection can still be obtained in the United States, the period for
election of title may be shortened by DOE to a date that is no more than 60 days
prior to the end of the statutory period.

     (3)  The Contractor will file its initial patent application on a subject
invention to which it elects to retain title within 1 year after election of
title or, if earlier, prior to the end of any statutory period wherein valid
patent protection can be obtained in the United States after a publication, on
sale, or public use. The Contractor will file patent applications in additional
countries or international patent offices within either 10 months of the
corresponding initial patent application or 6 months from the date permission is
granted by the Commissioner of Patents and Trademarks to file foreign patent
applications where such filing has been prohibited by a Secrecy Order.

     (4)  Requests for extension of the time for disclosure, election, and
filing under subparagraphs (c)(1), (2), and (3) of this clause may, at the
discretion of the agency, be granted.

(d)  Conditions when the Government may obtain title. The Contractor will convey
to the Federal agency, upon written request, title to any subject invention --

     (1)  If the Contractor fails to disclose or elect title to the subject
invention within the times specified in paragraph (c) of this clause, or elects
not to retain title; provided, that DOE may only request title within 60 days
after learning of the failure of the Contractor to disclose or elect within the
specified times.

     (2)  In those countries in which the Contractor fails to file patent
applications within the times specified in paragraph (c) of this clause;
provided, however, that if the Contractor has filed a patent application in a
country after the times specified in paragraph (c) of this clause, but prior to
its receipt of the written request of the Federal agency, the Contractor shall
continue to retain title in that country.

     (3)  In any country in which the Contractor decides not to continue the
prosecution of any application for, to pay the maintenance fees on, or defend in
reexamination or opposition proceeding on, a patent on a subject invention.

(e)  Minimum rights to Contractor and protection of the Contractor right to
file.

     (1)  The Contractor will retain a nonexclusive royalty-free license
throughout the world in each subject invention to which the Government obtains
title, except if the Contractor fails to disclose the invention within the times
specified in paragraph (c) of this clause. The Contractor's license extends to
its domestic subsidiary and affiliates, if any, within the corporate structure
of which the Contractor is a party and includes the right to grant sublicenses
of the same scope to the extent the Contractor was legally obligated to do so at
the time the contract was awarded. The license is transferable only with the
approval of the Federal agency, except when transferred to the successor of that
part of the Contractor's business to which the invention pertains.

     (2)  The Contractor's domestic license may be revoked or modified by DOE to
the extent necessary to achieve expeditious practical application of subject
invention pursuant to an application for an exclusive license submitted in
accordance with applicable provisions at 37 CFR Part 404 and agency licensing
regulations. This license will not be revoked in that

                                                                         4 of 15
<PAGE>

field of use or the geographical areas in which the Contractor has achieved
practical application and continues to make the benefits of the invention
reasonably accessible to the public. The license in any foreign country may be
revoked or modified at the discretion of DOE to the extent the Contractor, its
licensees, or the domestic subsidiaries or affiliates have failed to achieve
practical application in that foreign country.

     (3)  Before revocation or modification of the license, DOE will furnish the
Contractor a written notice of its intention to revoke or modify the license,
and the Contractor will be allowed 30 days (or such other time as may be
authorized by DOE for good cause shown by the Contractor) after the notice to
show cause why the license should not be revoked or modified. The Contractor has
the right to appeal, in accordance with applicable regulations in 37 CFR Part
404 and agency regulations concerning the licensing of Government owned
inventions, any decision concerning the revocation or modification of the
license.

(f)  Contractor action to protect the Government's interest.

     (1)  The Contractor agrees to execute or to have executed and promptly
deliver to DOE all instruments necessary to (i) establish or confirm the rights
the Government has throughout the world in those subject inventions to which the
Contractor elects to retain title, and (ii) convey title to DOE when requested
under paragraph (d) of this clause and to enable the government to obtain patent
protection throughout the world in that subject invention.

     (2)  The Contractor agrees to require, by written agreement, its employees,
other than clerical and nontechnical employees, to disclose promptly in writing
to personnel identified as responsible for the administration of parent matters
and in a format suggested by the Contractor each subject invention made under
contract in order that the Contractor can comply with the disclosure provisions
of paragraph (c) of this clause, and to execute all papers necessary to file
patent applications on subject inventions and to establish the Government's
rights in the subject inventions. This disclosure format should require, as a
minimum, the information required by subparagraph (c)(1) of this clause. The
Contractor shall instruct such employees, through employee agreements or other
suitable educational programs, on the importance of reporting inventions in
sufficient time to permit the filing of patent applications prior to U.S. or
foreign statutory bars.

     (3)  The Contractor will notify DOE of any decision not to continue the
prosecution of a patent application, pay maintenance fees, or defend in a
reexamination or opposition proceeding on a patent, in any country, not less
than 30 days before the expiration of the response period required by the
relevant parent office.

     (4)  The Contractor agrees to include, within the specification of any
United States patent application and any patent issuing thereon covering a
subject invention, the following statement, "This invention was made with
Government support under (identify the contract) awarded by the United States
Department of Energy. The Government has certain rights in the invention."

(g)  Subcontracts.

     (1)  The Contractor will include this clause, suitably modified to identify
the parties, in all subcontracts, regardless of tier, for experimental,
developmental, or research work to be performed by a small business firm or
domestic nonprofit organization. The subcontractor will retain all rights
provided for the Contractor in this clause, and the Contractor will not, as

                                                                         5 of 15
<PAGE>

part of the consideration for awarding the subcontract, obtain rights in the
subcontractor's subject inventions.

     (2)  The contractor shall include in all other subcontracts, regardless of
tier, for experimental, developmental, demonstration, or research work the
patent rights clause at 952.227-13.

     (3)  In the case of subcontracts, at any tier, DOE, subcontractor, and the
Contractor agree that the mutual obligations of the parties created by this
clause constitute a contract between the subcontractor and DOE with respect to
the matters covered by the clause; provided, however, that nothing in this
paragraph is intended to confer any jurisdiction under the Contract Disputes Act
in connection with proceedings under paragraph (j) of this clause.

(h)  Reporting on utilization of subject inventions. The Contractor agrees to
submit, on request, periodic reports no more frequently than annually on the
utilization of a subject invention or on efforts at obtaining such utilization
that are being made by the Contractor or its licensees or assignees. Such
reports shall include information regarding the status of development, date of
first commercial sale or use, gross royalties received, by the Contractor, and
such other data and information as DOE may reasonably specify. The Contractor
also agrees to provide additional reports as may be requested by DOE in
connection with any march-in proceeding undertaken by that agency in accordance
with paragraph (j) of this clause. As required by 35 U.S.C. 202(c)(5), DOE
agrees it will not disclose such information to persons outside the Government
without permission of the Contractor.

(i)  Preference for United States industry. Notwithstanding any other provision
of this clause, the Contractor agrees that neither it nor any assignee will
grant to any person the exclusive right to use or sell any subject invention in
the United States unless such person agrees that any product embodying the
subject invention or produced through the use of the subject invention will be
manufactured substantially in the United States. However, in individual cases,
the requirement for such an agreement may be waived by DOE upon a showing by the
Contractor or its assignee that reasonable but unsuccessful efforts have been
made to grant licenses on similar terms to potential licensees that would be
likely to manufacture substantially in the United States or that under the
circumstances domestic manufacture is not commercially feasible.

(j)  March-in rights. The Contractor agrees that, with respect to any subject
invention in which it has acquired title, DOE has the right in accordance with
the procedures in 37 CFR 401.6 and any supplemental regulations of the agency to
require the Contractor, an assignee or exclusive licensee of a subject invention
to grant a nonexclusive, partially exclusive, or exclusive license in any field
of use to a responsible applicant or applicants, upon terms that are reasonable
under the circumstances, and, if the Contractor, assignee, or exclusive licensee
refuses such a request, DOE has the right to grant such a license itself if DOE
determines that -- (1) Such action is necessary because the Contractor or
assignee has not taken, or is not expected to take within a reasonable time,
effective steps to achieve practical application of the subject invention in
such field of use; (2) Such action is necessary to alleviate health or safety
needs which are not reasonably satisfied by the Contractor, assignee, or their
licensees; (3) Such action is necessary to meet requirements for public use
specified by Federal regulations and such requirements are not reasonably
satisfied by the Contractor, assignee, or licensees; or (4) Such action is
necessary because the agreement required by paragraph (i) of this clause has not
been obtained or waived or because a licensee of the exclusive right to use or
sell any subject invention in the United States is in breach of such agreement.

                                                                         6 of 15
<PAGE>

(k)  Special provisions for contracts with nonprofit organizations. If the
Contractor is a nonprofit organization, it agrees that --

     (1)  Rights to a subject invention in the United States may not be assigned
without the approval of the Federal agency, except where such assignment is made
to an organization which has as one of its primary functions the management of
inventions; provided, that such assignee will be subject to the same provisions
as the Contractor;

     (2)  The Contractor will share royalties collected on a subject invention
with the inventor, including Federal employee co-inventors (when DOE deems it
appropriate) when the subject invention is assigned in accordance with 35 U.S.C.
202(e) and 37 CFR 401.10;

     (3)  The balance of any royalties or income earned by the Contractor with
respect to subject inventions, after payment of expenses (including payments to
Inventors) incidental to the administration of subject inventions will be
utilized for the support of scientific research or education; and

     (4)  It will make efforts that are reasonable under the circumstances to
attract licensees of subject inventions that are small business firms, and that
it will give a preference to a small business firm when licensing a subject
invention if the Contractor determines that the small business firm has a plan
or proposal for marketing the invention which, if executed, is equally as likely
to bring the invention to practical application as any plans or proposals from
applicants that are not small business firms; provided, that the Contractor is
also satisfied that the small business firm has the capability and resources to
carry out its plan or proposal. The decision whether to give a preference in any
specific case will be at the discretion of the contractor. However, the
Contractor agrees that the Secretary of Commerce may review the Contractor's
licensing program and decisions regarding small business applicants, and the
Contractor will negotiate changes to its licensing policies, procedures, or
practices with the Secretary of Commerce when that Secretary's review discloses
that the Contractor could take reasonable steps to more effectively implement
the requirements of this subparagraph (k)(4).

(l)  Communications.

     (1)  The contractor shall direct any notification, disclosure, or request
to DOE provided for in this clause to the DOE patent counsel assisting the DOE
contracting activity, with a copy of the communication to the Contracting
Officer.

     (2)  Each exercise of discretion or decision provided for in this clause,
except subparagraph (k)(4), is reserved for the DOE Patent Counsel and is not a
claim or dispute and is not subject to the Contract Disputes Act of 1978.

     (3)  Upon request of the DOE Patent Counsel or the contracting officer, the
contractor shall provide any or all of the following:

          (i)   a copy of the patent application, filing date, serial number and
title, patent number, and issue date for any subject invention in any country in
which the contractor has applied for a patent;

          (ii)  a report, not more often than annually, summarizing all subject
inventions which were disclosed to DOE individually during the reporting period
specified; or

                                                                         7 of 15
<PAGE>

          (iii) a report, prior to closeout of the contract, listing all subject
inventions or stating that there were none.

(End of clause)

05.  52.227-14 Rights in Data - General, with Alternates I, II, III and V, and
     paragraph (d)(3)

     RIGHTS IN DATA - GENERAL (JUN 1987)

(a)  Definitions.
     -----------

     "Computer software," as used in this clause, means computer programs,
computer data bases, and documentation thereof.

     "Data," as used in this clause, means recorded information, regardless of
form or the media on which it may be recorded.  The term includes technical data
and computer software.  The terms does not include information incidental to
contract administration, such as financial, administrative, cost or pricing, or
management information.

     "Form, fit, and function data," as used in this clause, means data relating
to items, components, or processes that are sufficient to enable physical and
functional interchangeability, as well as data identifying source, size,
configuration, mating, and attachment characteristics, functional
characteristics, and performance requirements; except that for computer software
it means data identifying source, functional characteristics, and performance
requirements but specifically excludes the source code, algorithm process,
formula, and flow charts of the software.

     "Limited rights data", as used in this clause, means data (other than
computer software) developed at private expense that embody trade secrets or are
commercial or financial and confidential or privileged.

     "Technical data," as used in this clause, means data (other than computer
software) which are of a scientific or technical nature.

     "Restricted computer software," as used in this clause, means computer
software developed at private expense and that is a trade secret; is commercial
or financial and is confidential or privileged; or is published copyrighted
computer software; including minor modifications of such computer software.

     "Unlimited rights," as used in this clause, means the right of the
Government to use, disclose, reproduce, prepare derivative works, distribute
copies to the public, and perform publicly and display publicly, in any manner
and for any purpose, and to have or permit others to do so.

     "Limited rights," as used in this clause, means the rights of the
Government in limited rights data as set forth in the Limited Rights Notice of
subparagraph (g)(2) if included in this clause.

     "Restricted rights," as used in this clause, means the rights of the
Government in restricted computer software, as set forth in a Restricted Rights
Notice of subparagraph (g)(3) if included in this clause, or as otherwise may be
provided in a collateral agreement

                                                                         8 of 15
<PAGE>

incorporated in and made part of this contract, including minor modifications of
such computer software.

(b)  Allocation of rights.
     --------------------

     (1)  Except as provided in paragraph (c) below regarding copyright, the
Government shall have unlimited rights in:

          (i)   Data first produced in the performance of this contract;

          (ii)  Form, fit, and function data delivered under this contract;

          (iii) Data delivered under this contract (except for restricted
computer software) that constitute manuals or instructional and training
material for installation, operation, or routine maintenance and repair items,
components, or processes delivered or furnished for use under this contract; and

          (iv)  All other data delivered under this contract unless provided
otherwise for limited rights data or restricted computer software in accordance
with paragraph (g) below.

     (2)  The Contractor shall have the right to:

          (i)   Use, release to others, reproduce, distribute, or publish any
data first produced or specifically used by the Contractor in the performance of
this contract, unless provided otherwise in paragraph (d) below;

          (ii)  Protect from unauthorized disclosure and use those data which
are limited rights data or restricted computer software to the extent provided
in paragraph (g) below;

          (iii) Substantiate use of, add or correct limited rights, restricted
rights, or copyright notices and to take other appropriate action, in accordance
with paragraphs (e) and (f) below; and

          (iv)  Establish claim to copyright subsisting in data first produced
in the performance of this contract to the extent provided in subparagraph
(c)(1) below.

(c)  Copyright.
     ---------

     (1)  Data first produced in the performance of this contract. Unless
provided otherwise in subparagraph (d) below, the Contractor may establish,
without prior approval of the Contracting Officer, claim to copyright subsisting
in scientific and technical articles based on or containing data first produced
in the performance of this contract and published in academic, technical or
professional journals, symposia proceedings or similar works. The prior, express
written permission of the Contracting Officer is required to establish claim to
copyright subsisting in all other data first produced in the performance of this
contract. When claim to copyright is made, the Contractor shall affix the
applicable copyright notices of 17 U.S.C. 401 or 402 and acknowledgment of
Government sponsorship (including contract number) to the data when such data
are delivered to the Government, as well as when the data are published or
deposited for registration as a published work in the U.S. Copyright Office. For
data other than computer software the Contractor grants to the Government, and
others acting on its behalf, a paid-up, nonexclusive, irrevocable worldwide
license in such copyrighted data to reproduce, prepare derivative works,
distribute copies to the public, and

                                                                         9 of 15
<PAGE>

perform publicly and display publicly, by or on behalf of the Government. For
computer software, the Contractor grants to the Government and others acting in
its behalf, a paid-up nonexclusive, irrevocable worldwide license in such
copyrighted computer software to reproduce, prepare derivative works, and
perform publicly and display publicly by or on behalf of the Government.

     (2)  Data not first produced in the performance of this contract.  The
Contractor shall not, without prior written permission of the Contracting
Officer, incorporate in data delivered under this contract any data not first
produced in the performance of this contract and which contains the copyright
notice of 17 U.S. C. 401 and 402, unless the Contractor identifies such data and
grants to the Government or acquires on its behalf a license of the same scope
as set forth in subparagraph (1) above; provided, however, that if such data are
computer software the Government shall acquire a copyright license as set forth
in subparagraph (g)(3) below if included in this contract or as otherwise may be
provided in a collateral agreement incorporated in or made part of this
contract.

     (3)  Removal of copyright notices. The Government agrees not to remove any
copyright notices place on data pursuant to this paragraph (c), and to include
such notices on all reproductions of the data.

(d)  Release, publication and use of data.
     ------------------------------------

     (1)  The Contractor shall have the right to use, release to others,
reproduce, distribute, or publish any data first produced or specifically used
by the Contractor in the performance of this contract, except to the extent such
data may be subject to the Federal export control or national security laws or
regulations, or, unless otherwise provided below in this paragraph or expressly
set forth in this contract.

     (2)  The Contractor agrees that to the extent it receives or is given
access to data necessary for the performance of this contract which contain
restrictive markings, the Contractor shall treat the data in accordance with
such markings unless otherwise specifically authorized in writing by the
Contracting Officer.

     (3)  The Contractor agrees not to establish claim to copyright in computer
software first produced in the performance of this contract without prior
written permission of the Contracting Officer.  When such permission is granted,
the Contracting Officer shall specify appropriate terms to assure dissemination
of the software.  The Contractor shall promptly deliver to the Contracting
Officer or to the Patent Counsel designated by the Contracting Officer a duly
executed and approved instrument fully confirmatory of all rights to which the
Government is entitled, and other terms pertaining to the computer software to
which claim to copyright is made.

(e)  Unauthorized marking of data.
     ----------------------------

     (1)  Notwithstanding any other provisions of this contract concerning
inspection or acceptance, if any data delivered under this contract are marked
with the notices specified in subparagraphs (g)(2) or (g)(3) below and use of
such is not authorized by this clause, or if such data bears any other
restrictive or limiting markings not authorized by this contract, the
Contracting Officer may at any time either return the data to the Contractor, or
cancel or ignore the markings.  However, the following procedures shall apply
prior to canceling or ignoring the markings.

                                                                        10 of 15
<PAGE>

          (i)   The Contracting Officer shall make written inquiry to the
contractor affording the Contractor 30 days from receipt of the inquiry to
provide written justification to substantiate the propriety of the markings;

          (ii)  If the Contractor fails to respond or fails to provide written
justification to substantiate the propriety of the markings within the 30-day
period (or a longer time not exceeding 90 days approved in writing by the
Contracting Officer for good cause shown), the Government shall have the right
to cancel or ignore the markings at any time after said period and the data will
not longer be made subject to any disclosure prohibitions.

          (iii) If the Contractor provides written justification to substantiate
the propriety of the markings within the period set in subdivision (i) above,
the Contracting Officer shall consider such written Justification and determine
whether or not the markings are to be canceled or ignored. If the Contracting
Officer determines that the markings are authorized, the Contractor shall be so
notified in writing. If the Contracting Officer determines, with concurrence of
the Head of the Contracting Activity, that the markings are not authorized, the
Contracting Officer shall furnish the Contractor a written determination, which
determination shall become the final agency decision regarding the
appropriateness of the markings unless the Contractor files suit in a court of
competent jurisdiction within 90 days of receipt of the Contracting Officer's
decision. The Government shall continue to abide by the markings under this
subdivision (iii) until final resolution of the matter either by the Contracting
Officer's determination becoming final (in which instance the Government shall
thereafter have the right to cancel or ignore the markings at any time and the
data will no longer be made subject to any disclosure prohibitions), or by final
disposition of the matter by court decision if suit is filed.

     (2)  The time limits in the procedures set forth in subparagraph (1) above
may be modified in accordance with agency regulations implementing the Freedom
of Information Act (5 U.S.C. 552) if necessary to respond to a request
thereunder.

     (3)  This paragraph (e) does not apply if this contract is for a major
system or for support of a major system by a civilian agency other than NASA and
the U.S. Coast Guard subject to the provisions of Title III of the Federal
Property and Administrative Services Act of 1949.

     (4)  Except to the extent the Government's action occurs as the result of
final disposition of the matter by a court of competent jurisdiction, the
Contractor is not precluded by this paragraph (e) from bringing a claim under
the Contract Disputes Act, including pursuant to the Disputes clause of this
contract, as applicable, that may arise as the result of the Government removing
or ignoring authorized markings on data delivered under this contract.

(f)  Omitted or incorrect markings.
     -----------------------------

     (1)  Data delivered to the Government without either the limited rights or
restricted rights notice as authorized by paragraph (g) below, or the copyright
notice required by paragraph (c) above, shall be deemed to have been furnished
with unlimited rights, and the Government assumes no liability for disclosure,
use, or reproduction of such data.  However, to the extent the data has not been
disclosed without restriction outside the Government, the Contractor may
request, within 6 months (or a longer time approved by the Contracting Officer
for good cause shown) after delivery of such data, permission to have notices
placed

                                                                        11 of 15
<PAGE>

on qualifying data, at the Contractor's expense, and the Contracting Officer may
agree to do so if the Contractor:

          (i)   Identifies the data to which the omitted notice is to be
applied;

          (ii)  Demonstrates that the omission of the notice was inadvertent;

          (iii) Establishes that the use of the proposed notice is authorized;
and

          (iv)  Acknowledges that the Government has no liability with respect
to the disclosure, use, or reproduction of any such data made prior to the
addition of the notice or resulting from the omission of the notice.

     (2)  The Contracting Officer may also (i) permit correction at the
Contractor's expense of incorrect notices if the Contractor identifies the data
on which correction of the notice is to be made, and demonstrates that the
correct notice is authorized, or (ii) correct any incorrect notices.

(g)  Protection of limited rights data and restricted computer software.
     ------------------------------------------------------------------

     (1)  When data other than that listed in subparagraphs (b)(1)(i), (ii) and
(iii) above are specified to be delivered under this contract and qualify as
either limited rights data or restricted computer software, if the Contractor
desires to continue protection of such data, the Contractor shall withhold such
data and not furnish them to the Government under this Contract.  As a condition
to this withholding, the Contractor shall identify the data being withheld and
furnish form, fit, and function data in lieu thereof.  Limited rights data that
are formatted as a computer data base for delivery to the Government is to be
created as limited rights data and not restricted computer software.

     (2)  [Reserved.]

     (3)  [Reserved.]

(h)  Subcontracting.
     --------------

     The Contractor has the responsibility to obtain from its subcontractors all
data and rights therein necessary to fulfill the Contractor's obligations to the
Government under this contract.  If a subcontractor refuses to accept terms
affording the Government such rights, the Contractor shall promptly bring such
refusal to the attention of the Contracting Officer and not proceed with
subcontract award without further authorization.

(i)  Relationship to patents.
     -----------------------

     Nothing contained in this clause shall imply a license to the Government
under any patent or be construed as affecting the scope of any license or other
right otherwise granted to the Government.

(j)  The Contractor agrees, except as may be otherwise specified in this
contract for specific data items listed as not subject to this paragraph, that
the Contracting Officer or an authorized representative may, up to three years
after acceptance of all items to be delivered under this contract, inspect at
the Contractor's facility any data withheld pursuant to paragraph (g)(1) above,
for purposes of verifying the Contractor's assertion pertaining to the

                                                                        12 of 15
<PAGE>

limited rights or restricted rights status of the data or for evaluating work
performance. Where the Contractor whose data are to be inspected demonstrates to
the Contracting Officer that there would be a possible conflict of interest if
the inspection where made by a particular representative, the Contracting
Officer shall designate an alternate inspector.

(End of clause)

                                 ALTERNATE II

     (g)(2)     Notwithstanding subparagraph (g)(1) of this clause, the contract
may identify and specify the delivery of limited rights data, or the Contracting
Officer may require by written request the delivery of limited rights data that
has been withheld or would otherwise be withholdable.  If delivery of such data
is so required, the Contractor may affix the following "Limited Rights Notice"
to the data and the Government will thereafter treat the data, subject to the
provisions of paragraphs (e) and (f) of this clause, in accordance with such
Notice:

                       LIMITED RIGHTS NOTICE (JUN 1987)

     (a)        These data are submitted with limited rights under Government
contract No.__________ (and subcontract No. __________, if appropriate). These
data may be reproduced and used by the Government with the express limitation
that they will not, without written permission of the Contractor, be used for
purposes of manufacture nor disclosed outside the Government; except that the
Government may disclose these data outside the Government for the following
purposes, if any, provided that the Government makes such disclosure subject to
prohibition against further use and disclosure:

     - [Agencies may list additional purposes as set forth in 27.404(d)(l) or if
none, so state]

     (b)        This Notice shall be marked on any reproduction of these data,
in whole or in part.

                                (End of notice)

                                 ALTERNATE III

     (g)(3)(i)  Notwithstanding subparagraph (g)(1) of this clause, the contract
may identify and specify the delivery of restricted computer software, or the
Contracting Officer may require by written request the delivery of restricted
computer software that has been withheld or would otherwise be withholdable.  If
delivery of such computer software is so required, the Contractor may affix the
fol1owing "Restricted Rights Notice" to the computer software and the Government
will thereafter treat the computer software, subject to paragraphs (e) and (f)
of this clause, in accordance with the Notice:

                      RESTRICTED RIGHTS NOTICE (JUN 1987)

     (a)        This computer software is submitted with restricted rights under
Government Contract No. __________ (and subcontract __________, if appropriate).
It may not be used, reproduced, or disclosed by the Government except as
provided in paragraph (b) of this Notice or as otherwise expressly stated in the
contract.

                                                                        13 of 15
<PAGE>

     (b)  This computer software may be:

          (1)  Used or copied for use in or with the computer or computers for
which it was acquired, including use at any Government installation to which
such computer or computers may be transferred;

          (2)  Used or copied for use in a backup computer if any computer for
which it was acquired is inoperative;

          (3)  Reproduced for safekeeping (archives) or backup purposes;

          (4)  Modified, adapted, or combined with other computer software,
provided that the modified, combined, or adapted portions of the derivative
software incorporating restricted computer software are made subject to the same
restricted rights;

          (5)  Disclosed to and reproduced for use by support service
Contractors in accordance with subparagraphs (b)(1) through (4) of this clause,
provided the Government makes such disclosure or reproduction subject to these
restricted rights; and

          (6)  Used or copied for use in or transferred to a replacement
computer.

     (c)  Notwithstanding the foregoing, if this computer software is published
copyrighted computer software, it is licensed to the Government, without
disclosure prohibitions, with the minimum rights set forth in paragraph (b) of
this clause.

     (d)  Any others rights or limitations regarding the use, duplication, or
disclosure of this computer software are to be expressly stated in, or
incorporated in, the contract.

     (e)  This Notice shall be marked on any reproduction of this computer
software, in whole or in part.

                                (End of notice)

          (ii)  Where it is impractical to include the Restricted Rights Notice
on restricted computer software, the following short-form Notice may be used in
lieu thereof:

                           RESTRICTED RIGHTS NOTICE
                             SHORT FORM (JUN 1987)

          Use, reproduction, or disclosure is subject to restrictions set forth
          in Contract No. __________ (and subcontract __________, if
          appropriate) with __________ (name of Contractor and subcontractor)."

                                (End of notice)

          (iii) If restricted computer software is delivered with the
copyright notice of 17 U.S.C. 401, it will be presumed to be published
copyrighted computer software licensed to the Government without disclosure
prohibitions, with the minimum rights set forth in paragraph (b) of this clause,
unless the Contractor includes the following statement with such copyright
notice:  "Unpublished-rights reserved under the Copyright Laws of the United
States."

                                                                        14 of 15
<PAGE>

(End of clause)

06.  48 CFR 52.227-16 Additional Data Requirements

     ADDITIONAL DATA REQUIREMENTS (JUN 1987)

(a)  In addition to the data (as defined in the clause at 52.227-14, Rights in
Data-General clause or other equivalent included in this contract) specified
elsewhere in this contract to be delivered, the Contracting Officer may, at any
time during contract performance or within a period of 3 years after acceptance
of all items to be delivered under this contract, order any data first produced
or specifically used in the performance of this contract.

(b)  The Rights in Data-General clause or other equivalent included in this
contract is applicable to all data ordered under this Additional Data
Requirements clause. Nothing contained in this clause shall require the
Contractor to deliver any data the withholding of which is authorized by the
Rights in Data-General or other equivalent clause of this contract, or data
which are specifically identified in this contract as not subject to this
clause.

(c)  When data are to be delivered under this clause, the Contractor will be
compensated for converting the data into the prescribed form, for reproduction,
and for delivery.

(d)  The Contracting Officer may release the Contractor from the requirements of
this clause for specifically identified data items at any time during the 3-year
period set forth in paragraph (a) of this clause.

(End of clause)

07.  48 CFR 52.227-23 Rights to Proposal Data

     RIGHTS TO PROPOSAL DATA (TECHNICAL)(JUN 1987)

Except for data contained on pages _____,  it is agreed that as a condition of
award of this contract, and notwithstanding the conditions of any notice
appearing thereon, the Government shall have unlimited rights (as defined in the
"Rights in Data-General" clause contained in this contract) in and to the
technical data contained in the proposal dated ______, upon which this contract
is based.

                                                                        15 of 15
<PAGE>

                                 ATTACHMENT 1

952.227-13 Patent Rights - Acquisition by the Government

     PATENT RIGHTS-ACQUISITION BY THE GOVERNMENT (FEB 1995)

(a)  Definitions.

     "Invention", as used in this clause, means any invention or discovery which
is or may be patentable or otherwise protectable under title 35 of the United
States Code or any novel variety of plant that is or may be protectable under
the Plant Variety Protection Act (7 U.S.C. 2321, et seq.).

     "Practical application", as used in this clause, means to manufacture, in
the case of a composition or product; to practice, in the case of a process or
method; or to operate, in the case of a machine or system; and, in each case,
under such conditions as to establish that the invention is being utilized and
that its benefits are, to the extent permitted by law or Government regulations,
available to the public on reasonable terms.

     "Subject invention", as used in this clause, means any invention of the
Contractor conceived or first actually reduced to practice in the course of or
under this contract.

     "Parent Counsel", as used in this clause, means the Department of Energy
Patent Counsel assisting the procuring activity.

     "DOE patent waiver regulations", as used in this clause, means the
Department of Energy patent waiver regulations at 41 CFR 9-9.109-6 or successor
regulations.

     "Agency licensing regulations" and "applicable agency licensing
regulations", as used in this clause, mean the Department of Energy patent
licensing regulations at 10 CFR Part 781.

(b)  Allocations of principal rights.

     (1)  Assignment to the Government. The Contractor agrees to assign to the
Government the entire right, title, and interest throughout the world in and to
each subject invention, except to the extent that rights are retained by the
Contractor under subparagraph (b)(2) and paragraph (d) of this clause.

     (2)  Greater rights determinations.

          (i)  The contractor, or an employee-inventor after consultation with
the Contractor, may request greater rights than the nonexclusive license and the
foreign patent rights provided in paragraph (d) of this clause on identified
inventions in accordance with the DOE patent waiver regulations.  A request for
a determination of whether the Contractor or the employee-inventor is entitled
to acquire such greater rights must be submitted to the Patent Counsel with a
copy to the Contracting Officer at the time of the first disclosure of the
invention pursuant to subparagraph (e)(2) of this clause, or not later than 8
months thereafter, unless a longer period is authorized in writing by the
Contracting Officer for good cause shown in writing

                                                                         1 of 11
<PAGE>

by the Contractor. Each determination of greater rights under this contract
shall be subject to paragraph (c) of this clause, unless otherwise provided in
the greater rights determination, and to the reservations and conditions deemed
to be appropriate by the Secretary of Energy or designee.

          (ii)  Within two (2) months after the filing of a patent application,
the Contractor shall provide the filing date, serial number and title, a copy of
the patent application (including an English-language version if filed in a
language other than English), and, promptly upon issuance of a patent, provide
the patent number and issue date for any subject invention in any country for
which the Contractor has been granted title or the right to file and prosecute
on behalf of the United States by the Department of Energy.

          (iii) Not less than thirty (30) days before the expiration of the
response period for any action required by the Patent and Trademark Office,
notify the Patent Counsel of any decision not to continue prosecution of the
application.

          (iv)  Upon request, the Contractor shall furnish the Government an
irrevocable power to inspect and make copies of the patent application file.

(c)  Minimum rights acquired by the Government.

     (1)  With respect to each subject invention to which the Department of
Energy grants the Contractor principal or exclusive rights, the Contractor
agrees as follows:

          (i)   The Contractor hereby grants to the Government a nonexclusive,
nontransferable, irrevocable, paid-up license to practice or have practiced each
subject invention throughout the world by or on behalf of the Government of the
United States (including any Government agency).

          (ii)  The Contractor agrees that with respect to any subject invention
in which DOE has granted it title, DOE has the right in accordance with the
procedures in the DOE patent waiver regulations to require the Contractor, an
assignee, or exclusive licensee of a subject invention to grant a nonexclusive,
partially exclusive, or exclusive license in any field of use to a responsible
applicant or applicants, upon terms that are reasonable under the circumstances,
and if the Contractor, assignee, or exclusive licensee refuses such a request,
DOE has the right to grant such a license itself if it determines that --

          (A)   Such action is necessary because the Contractor or assignee has
not taken, or is not expected to take within a reasonable time, effective steps
to achieve practical application of the subject invention in such field of use;

          (B)   Such action is necessary to alleviate health or safety needs
which are not reasonably satisfied by the Contractor, assignee, or their
licensees;

          (C)   Such action is necessary to meet requirements for public use
specified by Federal regulations and such requirements are not reasonably
satisfied by the Contractor, assignee, or licensees; or

                                                                         2 of 11
<PAGE>

          (D)   Such action is necessary because the agreement required by
paragraph (i) of this clause has neither been obtained nor waived or because a
license of the exclusive right to use or sell any subject invention in the
United States is in breach of such agreement.

          (iii) The Contractor agrees to submit on request periodic reports no
more frequently than annually on the utilization of a subject invention or on
efforts at obtaining such utilization of a subject invention or on efforts at
obtaining such utilization that are being made by the Contractor or its
licensees or assignees. Such reports shall include information regarding the
status of development, date of first commercial sale or use, gross royalties
received by the Contractor, and such other data and information as DOE may
reasonably specify. The Contractor also agrees to provide additional reports as
may be requested by DOE in connection with any march-in proceedings undertaken
by that agency in accordance with subparagraph (c)(1)(ii) of this clause. To the
extent data or information supplied under this section is considered by the
Contractor, its licensee, or assignee to be privileged and confidential and is
so marked, the Department of Energy agrees that, to the extent permitted by law,
it will not disclose such information to persons outside the Government.

          (iv)  The Contractor agrees, when licensing a subject invention, to
arrange to avoid royalty charges on acquisitions involving Government funds,
including funds, derived through a Military Assistance Program of the Government
or otherwise derived through the Government, to refund any amounts received as
royalty charges on a subject invention in acquisitions for, or on behalf of, the
Government, and to provide for such refund in any instrument transferring rights
in the invention to any party.

          (v)   The Contractor agrees to provide for the Government's paid-up
license pursuant to subparagraph (c)(1)(i) of this clause in any instrument
transferring rights in a subject invention and to provide for the granting of
licenses as required by subparagraph (c)(1)(ii) of this clause, and for the
reporting of utilization information as required by subparagraph (c)(1)(iii) of
this clause, whenever the instrument transfers principal or exclusive rights in
a subject invention.

     (2)  Nothing contained in this paragraph (c) shall be deemed to grant to
the Government any rights with respect to any invention other than a subject
invention.

(d)  Minimum rights to the Contractor.

     (1)  The Contractor is hereby granted a revocable, nonexclusive, royalty-
free license in each patent application filed in any country on a subject
invention and any resulting patent in which the Government obtains title, unless
the Contractor fails to disclose the subject invention within the times
specified in subparagraph (e)(2) of this clause. The Contractor's license
extends to its domestic subsidiaries and affiliates, if any, within the
corporate structure of which the Contractor is a part and includes the right to
grant sublicenses of the same scope to the extent the Contractor was legally
obligated to do so at the time the contract was awarded.  The license is
transferable only with the approval of DOE except when transferred to the
successor of that part of the Contractor's business to which the invention
pertains.

     (2)  The Contractor's domestic license may be revoked or modified by DOE
to the extent necessary to achieve expeditious practical application of the
subject invention pursuant to an

                                                                         3 of 11
<PAGE>

application for an exclusive license submitted in accordance with applicable
provisions in 371 CFR Part 404 and agency licensing regulations. This license
will not be revoked in that field of use or the geographical areas in which the
Contractor has achieved practical applications and continues to make the
benefits of the invention reasonably accessible to the public. The license in
any foreign country may be revoked or modified at the discretion of DOE to the
extent the Contractor, its licensees, or its domestic subsidiaries or affiliates
have failed to achieve practical application in that foreign country.

     (3)  Before revocation or modification of the license, DOE will furnish
the Contractor a written notice of its intention to revoke or modify the
license, and the Contractor will be allowed 30 days (or such other time as may
be authorized by DOE for good cause shown by the Contractor) after the notice to
show cause why the license should not be revoked or modified.  The Contractor
has the right to appeal, in accordance with applicable agency licensing
regulations and 37 CFR Part 404 concerning the licensing of Government-owned
inventions, any decision concerning the revocation or modification of its
license.

     (4)  The Contractor may request the right to acquire patent rights to a
subject invention in any foreign country where the Government has elected not to
secure such rights, subject to the conditions in subparagraphs (d)(4)(i) through
(d)(4)(vii) of this clause.  Such request must be made in writing to the Patent
Counsel as part of the disclosure required by subparagraph (e)(2) of this
clause, with a copy to the DOE Contracting Officer.  DOE approval, if given,
will be based on a determination that this would best serve the national
interest.

               (i)   The recipient of such rights, when specifically requested
by DOE, and three years after issuance of a foreign patent disclosing the
subject invention, shall furnish DOE a report stating:

                     (A)  The commercial use that is being made, or is intended
  to be made, of said invention, and

                     (B)  The steps taken to bring the invention to the point of
  practical application or to make the invention available for licensing.

               (ii)  The Government shall retain at least an irrevocable,
nonexclusive, paid-up license to make, use, and sell the invention throughout
the world by or on behalf of the Government (including any Government agency)
and States and domestic municipal governments, unless the Secretary of Energy or
designee determines that it would not be in the public interest to acquire the
license for the States and domestic municipal governments.

               (iii) If noted elsewhere in this contract as a condition of the
grant of an advance waiver of the Government's title to inventions under this
contract, or, if no advance waiver was granted but a waiver of the Government's
title to an identified invention is granted pursuant to subparagraph (b)(2) of
this clause upon a determination by the Secretary of Energy that it is in the
Government's best interest, this license shall include the right of the
Government to sublicense foreign governments pursuant to any existing or future
treaty or agreement with such foreign governments.

                                                                         4 of 11
<PAGE>

               (iv)   Subject to the rights granted in subparagraphs (d)(1),
(2), and (3) of this clause, the Secretary of Energy or designee shall have the
right to terminate the foreign patent rights granted in this subparagraph (d)(4)
in whole or in part unless the recipient of such rights demonstrates to the
satisfaction of the Secretary of Energy or designee that effective steps
necessary to accomplish substantial utilization of the invention have been taken
or within a reasonable time will be taken.

               (v)    Subject to the rights granted in subparagraphs (d)(1),
(2), and (3) of this clause, the Secretary of Energy or designee shall have the
right, commencing four years after foreign patent rights are accorded under this
subparagraph (d)(4), to require the granting of a nonexclusive or partially
exclusive license to a responsible applicant or applicants, upon terms
reasonable under the circumstances, and in appropriate circumstances to
terminate said foreign patent rights in whole or in part, following a hearing
upon notice thereof to the public, upon a petition by an interested person
justifying such hearing:

                      (A)   If the Secretary of Energy or designee determines,
upon review of such material as he deems relevant and after the recipient of
such rights or other interested person has had the opportunity to provide such
relevant and material information as the Secretary or designee may require, that
such foreign patent rights have tended substantially to lessen competition or to
result in undue market concentration in any section of the United States in any
line of commerce to which the technology relates; or

                      (B)   Unless the recipient of such rights demonstrates to
the satisfaction of the Secretary of Energy or designee at such hearing that the
recipient has taken effective steps, or within a reasonable time thereafter is
expected to take such steps, necessary to accomplish substantial utilization of
the invention.

               (vi)   If the contractor is to file a foreign patent application
on a subject invention, the Government agrees, upon written request, to use its
best efforts to withhold publication of such invention disclosures for such
period of time as specified by Patent Counsel, but in no event shall the
Government or its employees be liable for any publication thereof.

               (vii)  Subject to the license specified in subparagraphs (d)(1),
(2), and (3) of this clause, the contractor or inventor agrees to convey to the
Government, upon request, the entire right, title, and interest in any foreign
country in which the contractor or inventor fails to have a patent application
filed in a timely manner or decides not to continue prosecution or to pay any
maintenance fees covering the invention. To avoid forfeiture of the patent
application or patent, the contractor or inventor shall, not less than 60 days
before the expiration period for any action required by any patent office,
notify the Patent Counsel of such failure or decision, and deliver to the Patent
Counsel, the executed instruments necessary for the conveyance specified in this
paragraph.

(e)  Invention identification, disclosures, and reports.

     (1)  The Contractor shall establish and maintain active and effective
procedures to assure that subject inventions are promptly identified and
disclosed to Contractor personnel responsible for patent matters within 6 months
of conception and/or first actual reduction to practice,

                                                                         5 of 11
<PAGE>

whichever occurs first in the performance of work under this contract. These
procedures shall include the maintenance of laboratory notebooks or equivalent
records and other records as are reasonably necessary to document the conception
and/or the first actual reduction to practice of subject inventions, and records
that show that the procedures for identifying and disclosing the inventions are
followed. Upon request, the Contractor shall furnish the Contracting Officer a
description of such procedures for evaluation and for determination as to their
effectiveness.

     (2)  The Contractor shall disclose each subject invention to the DOE
Patent Counsel with a copy to the Contracting Officer within 2 months after the
inventor discloses it in writing to Contractor personnel responsible for patent
matters or, if earlier, within 6 months after the Contractor becomes aware that
a subject invention has been made, but in any event before any on sale, public
use, or publication of such invention known to the Contractor.  The disclosure
to DOE shall be in the form of a written report and shall identify the contract
under which the invention was made and the inventor(s).  It shall be
sufficiently complete in technical detail to convey a clear understanding, to
the extent known at the time of the disclosure, of the nature, purpose,
operation, and physical, chemical, biological, or electrical characteristics of
the invention.  The disclosure shall also identify any publication, on sale, or
public use of the invention and whether a manuscript describing the invention
has been submitted for publication and, if so, whether it has been accepted for
publication at the time of disclosure.  In addition, after disclosure to DOE,
the Contractor shall promptly notify Patent Counsel of the acceptance of any
manuscript describing the invention for publication or of any on sale or public
use planned by the Contractor.  The report should also include any request for a
greater rights determination in accordance with subparagraph (b)(2) of this
clause.  When an invention is disclosed to DOE under this paragraph, it shall be
deemed to have been made in the manner specified in Sections (a)(1) and (a)(2)
of 42 U.S.C. 5908, unless the Contractor contends in writing at the time the
invention is disclosed that is was not so made.

     (3)  The Contractor shall furnish the Contracting Officer the following:

               (i)   Interim reports every 12 months (or such longer period as
may be specified by the Contracting Officer) from the date of the contract,
listing subject inventions during that period, and certifying that all subject
inventions have been disclosed for that there are not such inventions) and that
the procedures required by subparagraph (e)(1) of this clause have been
followed.

               (ii)  A final report, within 3 months alter completion of the
contracted work listing all subject inventions or certifying that there were no
such inventions, and listing all subcontracts at any tier containing a patent
rights clause or certifying that there were no such subcontracts.

     (4)  The Contractor agrees to require, by written agreement, its employees,
other than clerical and nontechnical employees, to disclose promptly in writing
to personnel identified as responsible for the administration of patent matters
and in a format suggested by the Contractor each subject invention made under
contract in order that the Contractor can comply with the disclosure provisions
of paragraph (c) of this clause, and to execute all papers necessary to file
patent applications on subject inventions and to establish the Government's
rights in the subject inventions. This disclosure format should require, as a
minimum the information required by subparagraph (e)(2) of this clause.

                                                                         6 of 11
<PAGE>

     (5)  The Contractor agrees, subject to FAR 27.302(j), that the Government
may duplicate and disclose subject invention disclosures and all other reports
and papers furnished or required to be furnished pursuant to this clause.

(f)  Examination of records relating to inventions.

     (1)  The Contracting Officer or any authorized representative shall, until
3 years after final payment under this contract, have the right to examine any
books (including laboratory notebooks), records, and documents of the Contractor
relating to the conception or first actual reduction to practice of inventions
in the same field of technology as the work under this contract to determine
whether --
            (i)    Any such inventions are subject inventions;

            (ii)   The Contractor has established and maintains the procedures
required by subparagraphs (e)(1) and (4) of this clause;

            (iii)  The Contractor and its inventors have complied with the
procedures.

     (2)  If the Contracting Officer learns of an unreported Contractor
invention which the Contracting Officer believes may be a subject invention, the
Contractor may be required to disclose the invention to DOE for a determination
of ownership rights.

     (3)  Any examination of records under this paragraph will be subject to
appropriate conditions to protect the confidentiality of the information
involved.

(g)  Withholding of payment (NOTE: This paragraph does not apply to
     subcontracts).

     (1)  Any time before final payment under this contract, the Contracting
Officer may, in the Government's interest, withhold payment until a reserve not
exceeding $50,000 or 5 percent of the amount of this contract, whichever is
less, shall have been set aside if, in the Contracting Officers opinion, the
Contractor falls to --

            (i)    Convey to the Government, using a DOE-approved form, the
title and/or rights of the Government in each subject invention as required by
this clause.

            (ii)   Establish, maintain, and follow effective procedures for
identifying and disclosing subject inventions pursuant to subparagraph (e)(1) of
this clause;

            (iii)  Disclose any subject invention pursuant to subparagraph
(e)(2) of this clause;

            (iv)   Deliver acceptable interim reports pursuant to subparagraph
(e)(3)(i) of this clause; or

            (v)    Provide the information regarding subcontracts pursuant to
subparagraph (h)(4) of this clause.

                                                                         7 of 11
<PAGE>

     (2)  Such reserve or balance shall be withheld until the Contracting
Officer has determined that the Contractor has rectified whatever deficiencies
exist and has delivered all reports, disclosures, and other information required
by this clause.

     (3)  Final payment under this contract shall not be made before the
Contractor delivers to the Contracting Officer all disclosures of subject
inventions required by subparagraph (e)(2) of this clause, and acceptable final
report pursuant to subparagraph (e)(3)(ii) of this clause, and the Patent
Counsel has issued a patent clearance certification to the Contracting Officer.

     (4)  The Contracting Officer may decrease or increase the sums withheld up
to the maximum authorized above.  No amount shall be withheld under this
paragraph while the amount specified by this paragraph is being withheld under
other provisions of the contract.  The withholding of any amount or the
subsequent payment thereof shall not be construed as a waiver of any Government
rights.

(h)  Subcontracts.

     (1)  The contractor shall include the clause at 48 CFR 952.227-11
(suitably modified to identify the parties) in all subcontracts, regardless of
tier, for experimental, developmental, demonstration, or research work to be
performed by a small business firm or domestic nonprofit organization, except
where the work of the subcontract is subject to an Exceptional Circumstances
Determination by DOE.  In all other subcontracts, regardless of tier, for
experimental, developmental, demonstration, or research work, the contractor
shall include this clause (suitably modified to identify the parties).  The
contractor shall not, as part of the consideration for awarding the subcontract,
obtain rights in the subcontractor's subject inventions.

     (2)  In the event of a refusal by a prospective subcontractor to accept
such a clause the Contractor  --

            (i)    Shall promptly submit a written notice to the Contracting
Officer setting forth the subcontractor's reasons for such refusal and other
pertinent information that may expedite disposition of the matter; and

            (ii)   Shall not proceed with such subcontract without the written
authorization of the Contracting Officer.

     (3)  In the case of subcontracts at any tier, DOE, the subcontractor, and
Contractor agree that the mutual obligations of the parties created by this
clause constitute a contract between the subcontractor and DOE with respect to
those matters covered by this clause.

     (4)  The Contractor shall promptly notify the Contracting Officer in
writing upon the award of any subcontract at any tier containing a patent rights
clause by identifying the subcontractor, the applicable patent rights clause,
the work to be performed under the subcontract, and the dates of award and
estimated completion.  Upon request of the Contracting Officer, the Contractor
shall furnish a copy of such subcontract, and, no more frequently than annually,
a listing of the subcontracts that have been awarded.

                                                                         8 of 11
<PAGE>

     (5)  The contractor shall identify all subject inventions of the
subcontractor of which it acquires knowledge in the performance of this contract
and shall notify the Patent Counsel, with a copy to the contracting officer,
promptly upon identification of the inventions.

(i)  Preference United States industry. Unless provided otherwise, no Contractor
that receives title to any subject invention and no assignee of any such
Contractor shall grant to any person the exclusive right to use or sell any
subject invention in the United States unless such person agrees that any
products embodying the subject invention will be manufactured substantially in
the United States. However, in individual cases, the requirement may be waived
by the Government upon a showing by the Contractor or assignee that reasonable
but unsuccessful efforts have been made to grant licenses on similar terms to
potential licensees that would be likely to manufacture substantially in the
United States or that under the circumstances domestic manufacture is not
commercially feasible.

(j)  Atomic energy.

     (1)  No claim for pecuniary award of compensation under the provisions of
the Atomic Energy Act of 1954, as amended, shall be asserted with respect to any
invention or discovery made or conceived in the course of or under this
contract.

     (2)  Except as otherwise authorized in writing by the Contracting Officer,
the Contractor will obtain patent agreements to effectuate the provisions of
subparagraph (e)(1) of this clause from all persons who perform any part of the
work under this contract, except nontechnical personnel, such as clerical
employees and manual laborers.

(k)  Background Patents.

     (1)  Background Patent means a domestic patent covering an invention or
discovery which is not a subject invention and which is owned or controlled by
the Contractor at any time through the completion of this contract:

            (i)   Which the contractor, but not the Government, has the right to
license to others without obligation to pay royalties thereon, and

            (ii)  Infringement of which cannot reasonably be avoided upon the
practice of any specific process, method, machine, manufacture, or composition
of matter (including relatively minor modifications thereof) which is a subject
of the research, development, or demonstration work performed under this
contract.

     (2)  The Contractor agrees to and does hereby grant to the Government a
royalty-free, nonexclusive license under any background patent for purposes of
practicing a subject of this contract by or for the Government in research,
development, and demonstration work only.

     (3)  The Contractor also agrees that upon written application by DOE, it
will grant to responsible parties, for purposes of practicing a subject of this
contract, nonexclusive licenses under any background patent on terms that are
reasonable under the circumstances.  If, however, the Contractor believes that
exclusive rights are necessary to achieve expeditious commercial

                                                                         9 of 11
<PAGE>

development or utilization, then a request may be made to DOE for DOE approval
of such licensing by the Contractor.

     (4)  Notwithstanding subparagraph (k)(3) of this clause, the contractor
shall not be obligated to license any background patent if the Contractor
demonstrates to the satisfaction of the Secretary of Energy or designee that:

            (i)   a competitive alternative to the subject matter covered by
said background patent is commercially available or readily introducible from
one or more other sources; or

            (ii)  the Contractor or its licensees are supplying the subject
matter covered by said background patent in sufficient quantity and at
reasonable prices to satisfy market needs, or have taken effective steps or
within a reasonable time are expected to take effective steps to so supply the
subject matter.

(l)  Publication.  It is recognized that during the course of the work under
this contract, the Contractor or its employees may from time to time desire to
release or publish information regarding scientific or technical developments
conceived or first actually reduced to practice in the course of or under this
contract. In order that public disclosure of such information will not adversely
affect the patent interests of DOE or the Contractor, patent approval for
release of publication shall be secured from Patent Counsel prior to any such
release or publication.

(m)  Forfeiture of rights in unreported subject inventions.

     (1)  The Contractor shall forfeit and assign to the Government at the
request of the Secretary of Energy or designee, all rights in any subject
invention which the Contractor fails to report to Patent Counsel within six
months after the time the Contractor:

            (i)   Files or causes to be filed a United States or foreign patent
application thereon, or

            (ii)  Submits the final report required by subparagraph (e)(2)(ii)
of this clause, whichever is later.

     (2)  However, the Contractor shall not forfeit rights in a subject
invention if, within the time specified in subparagraph (m)(1) of this clause,
the Contractor:

            (i)   Prepares a written decision based upon a review of the record
that the invention was neither conceived nor first actually reduced to practice
in the course of or under the contract and delivers the decision to Patent
Counsel, with a copy to the Contracting Officer; or

            (ii)  Contending that the invention is not a subject invention, the
Contractor nevertheless discloses the invention and all facts pertinent to this
contention to the Patent Counsel, with a copy to the Contracting Officer; or

            (iii) Establishes that the failure to disclose did not result from
the Contractor's fault or negligence.

                                                                        10 of 11
<PAGE>

     (3)  Pending written assignment of the patent application and patents on a
subject invention determined by the Secretary of Energy or designee to be
forfeited (such determination to be a final decision under the Disputes clause
of this contract), the Contractor shall be deemed to hold the invention and the
patent applications and patents pertaining thereto in trust for the Government.
The forfeiture provision of this paragraph (m) shall be in addition to and shall
not supersede other rights and remedies which the Government may have with
respect to subject inventions.

(End of clause)

                                                                        11 of 11
<PAGE>

                                  APPENDIX C

                               DE-FC36-98GO10341

                             ADDITIONAL PROVISIONS
<PAGE>

                                  APPENDIX C

                             ADDITIONAL PROVISIONS
                             ---------------------

   Section                         Title
   -------                         -----

      1         Payment Provisions
      2         Annual Indirect Cost Rate Proposal and Reconciliation
      3         DOE Officials
      4         Cost Sharing Contributions
      5         Pre-award Costs
      6         Principal Investigator/Key Personnel
      7         Statement of Substantial Involvement
      8         Project Site and Access
      9         Notice of Partial Funding
     10         Lobbying Restriction
     11         Recipient Accounting System Review
     12         Potential Program Income

                                       1
<PAGE>

1 .  PAYMENT PROVISIONS
     ------------------

     a.   Payment Method.  Payment will be made by Reimbursement by electronic
          --------------
          transfer (ACH).

     b.   Invoicing Provisions: Standard Form (SF)270, "Request for Advance or
          --------------------
          Reimbursement," shall be used when requesting payment.  The request
          for payment shall include the total cumulative costs incurred by
          budget element as recorded in the recipient's accounting records
          through the billing period, the amount previously received from DOE,
          and the currently requested amount.

          A one-page summary of the activities within the scope of work in
          Appendix D of this award, for the current Budget Period, shall be
          provided by the recipient with each invoice submitted, together with
          these activities are expected to be consistent with the invoice
          submitted.

          The total amount obligated by DOE for this action is $215,000.00 as
          noted in Block 16 A. (1) of the Face Page.  This obligation is funded
          under a one year appropriation and must be expended by midnight,
          September 30, 1998.  Costs incurred after midnight, September 30, 1998
          shall not be eligible for reimbursement.

          Invoices shall be submitted to the following addresses:

           Send Original Invoice to:          Send One Copy of Invoice to:

           U.S. Department of Energy          U.S. Department of Energy/GO
           ATTN: AL/FAD/CMT                   ATTN: Accounts Payable
           P.O. BOX 18050                     1617 Cole Boulevard
           Albuquerque, NM 87185-8050         Golden, CO 80401

          The SF 269, "Financial Status Report," required annually by this
          award's Reporting Requirements shall be submitted in conjunction with
          the SF270 submitted for the month the annual SF269 report is due, with
          the data included in the forms traceable to one another.  Instructions
          for completion and submission of the SF269 are found on the form and
          in Appendix D of this award.

     c.   Final Cost Report:  A final cost report shall be submitted 90 days
          -----------------
          after the end of the total project period.  The format of the report
          shall be the SF269, "Financial Status Report," with any relevant
          attachments submitted with the form.  The final cost report shall
          compare the amounts allocated in the award's budget to the amounts
          expended for each budget element and shall indicate whether there is
          an unobligated balance to be refunded to DOE.  The final cost report
          shall be submitted in conjunction with the final SF270, with the data
          included in the forms traceable to one another.

                                       2
<PAGE>

2.   ANNUAL INDIRECT COST RATE PROPOSAL AND RECONCILIATION
     -----------------------------------------------------

     The recipient shall be required to submit indirect cost rate proposals
     directly to the Cognizant Department of Energy Office (CDO) when the
     Department of Energy (DOE) is the Cognizant Federal Agency (CFA), OR to the
     designated CFA activity when DOE is not the CFA.  If assistance in
     determining the CFA/CDO responsibilities is required, the cognizant
     Contract Specialist, identified herein, should be contacted.

     In addition to the indirect cost rate proposal, the recipient shall prepare
     an annual project cost reconciliation.  The project cost reconciliation
     shall provide a comparison of the costs billed at provisional rates during
     the proceeding fiscal year versus actual costs incurred at rates reflected
     in the in indirect cost rate proposal.

     The recipient shall submit the indirect cost rate proposal, when DOE is the
     CFA, and the project cost reconciliation to the Contract Specialist for
     this award, within 90 days of the recipient's fiscal year close.

3.   DOE OFFICIALS
     -------------

     The Contract Specialist and the Contracting Officer for this award is Beth
     H. Peterman, at telephone (303) 275-4719, and fax (303) 275-4788.

4.   COST SHARING CONTRIBUTIONS
     --------------------------

     Cost sharing is required for this action by the Recipient at a minimum 50%
     of the total Budget, for each Budget Period of the Project Period.

     General terms and conditions applicable to cost sharing are found in
     Provision 7 in Appendix A of this award.  DOE and the recipient shall share
     all allowable and allocable costs resulting from the work performed under
     this Agreement, with DOE funding 50%, and the recipient sharing at 50%, or
     $366,230.00 for each party, in accordance with the Budget Plan total and
     indicated sharing amounts in Appendix D of this award.

5.   PRE-AWARD COSTS
     ---------------

     The recipient shall be entitled to reimbursement for any costs incurred on
     or after April 15, 1998, which if incurred after this award was made, would
     have been reimbursable under the provisions of this award.

6.   PRINCIPAL INVESTIGATOR/KEY PERSONNEL
     ------------------------------------

     The following personnel are considered to be essential to the work being
     performed hereunder:

     Robert Friedland, Program Manager, Principal Investigator
     Phone No.:    860-571-6533, ext. 15
     Fax Number:   860-571-6505

                                       3
<PAGE>

7.   STATEMENT OF SUBSTANTIAL INVOLVEMENT
     ------------------------------------

     The work to be performed under this Agreement is subject to the
     involvement, surveillance and written technical direction of a "DOE Project
     Officer" identified in block 11 of the face page.

     DOE will be substantially involved in this project.  Substantial
     involvement may include DOE input to the recipient regarding the management
     control, direction, and performance of the project.  Project management
     shall be provided by the recipient.  However, the direction of the project
     will be shared by DOE and the recipient.  DOE shall have the right to
     intervene in the conduct or performance of project activities for
     programmatic reasons.  Intervention includes the interruption or
     modification of the conduct or performance of project activities.

     a.   The term "Technical Direction" is defined as direction to the
          recipient which redirects the work effort, shifts work emphasis
          between work areas or tasks, requires pursuit of certain lines of
          inquiry, fills in details or otherwise provides technical guidance to
          the Participant in order to accomplish the tasks and requirements
          stated in the Statement of Work, of in Appendix D of this Agreement.

     b.   The parties agree that DOE shall have the right to participate in an
          advisory role in any project committee, board or work group set up to
          perform decision making or advisory services for purposes of this
          Agreement.

     c.   Technical direction and management surveillance shall not impose tasks
          or requirements upon the recipient that are additional to, or
          different from, the tasks and requirements stated in Appendix D,
          Statement of Work, of this Agreement.  The technical direction to be
          valid:

          (1)  Must be issued in writing consistent with the tasks and
               requirements in Appendix D, Statement of Work of this Agreement,
               and;

          (2)  May not:

               (a)  constitute an assignment of additional work outside the
                    tasks and requirements of Appendix D, Statement of Work, of
                    this Agreement;

               (b)  in any manner cause an increase or decrease in the total
                    estimated project cost or the time required for project
                    performance;

               (c)  change any of the expressed terms, conditions or
                    specifications of this Agreement; or

               (d)  accept non-conforming work.

                                       4
<PAGE>

     d.   If in the opinion of the recipient, any technical direction issued by
          the Project Officer is within one of the categories defined in
          c.(2)(a) through (d) above, the Participant shall not proceed, but
          shall notify the Contracting Officer in writing within five working
          days after receipt of any such technical direction and shall request
          the Contracting Officer to modify the Agreement accordingly.

     e.   The only persons authorized to give technical direction under this
          Agreement are the Contracting Officer and the DOE Project Officer.
          Any action taken by the recipient in response to direction given by
          any person other than the Contracting or Project Officer shall not be
          binding on the government and any costs associated with such action
          shall be unallowable under this agreement.

     f.   DOE will periodically assess the progress of the project based on
          technical report submissions, recipient adherence to reporting
          requirements, correspondence, site visits, recipient participation in
          DOE program reviews, etc.  These assessments will address technical
          progress as well as project alignment with DOE initiatives and program
          objectives.  Based on these evaluations, project intervention may be
          provided by DOE.

          The recipient shall submit proposed changes in project milestones,
          scope, costs, or key personnel to DOE for approval.  DOE will have the
          right to re-evaluate the project based on these changes and intervene
          if appropriate.  In addition, major equipment purchases which are
          outside the scope of the Statement of Work shall require DOE
          concurrence to be considered for DOE cost share or reimbursement.

          Programmatic direction provided by the DOE Project Manager will be
          accepted and implemented by the recipient if the direction does not
          impact the overall cost, scope or major objectives of the project.  If
          impacts are anticipated as a result of DOE direction, then the
          recipient shall inform DOE/GO and shall not implement the direction
          until a revision has been provided for the impacted portions of the
          Cooperative Agreement.

8.   PROJECT SITE AND ACCESS
     -----------------------

     a.   The project shall be performed principally at:

          Proton Energy Systems, Inc.
          50 Inwood Road
          Rocky Hill, CT 06067

     b.   At the request of the DOE Contracting Officer or Project Officer, the
          recipient shall provide Government officials and interested member of
          the public, as determined by DOE, with access to the project site to
          observe project operations, except where access must be limited due to
          valid safety or security concerns.  Pertaining to the interested
          members of the public, access may generally be restricted to certain
          areas such that proprietary information and expertise is not
          compromised, and the recipient shall have access approval rights but
          shall not unreasonably withhold such approval.  Such access shall be
          at reasonable times,

                                       5
<PAGE>

          be the subject of reasonable prior notice by DOE, and with reasonable
          limitations on the number of people during each visit.

9.   NOTICE OF PARTIAL FUNDING
     -------------------------

     This award is partially funded on a cost reimbursement basis without fee or
     profit.  The total estimated cost of the award for the current budget
     period, Budget Period 1, is $732.460.00, of which the estimated cost to DOE
     is $366,230.00.  The cumulative DOE obligation for the current budget
     period is $215,000.00 and, subject to the availability of additional funds,
     DOE anticipates obligating an additional $151,230.00 for the current budget
     period.  The participant shall not be required to continue performance of
     the project beyond the total of (a) the amount of funds set forth as the
     Cumulative DOE Obligation for the current budget period in Block 16.B(1) of
     the Notice of Financial Assistance Award, and (b) the amount of the
     participant's obligation as determined in accordance with Provision No. 4
     of this Appendix, entitled Cost Sharing Contributions, for the current
                                --------------------------
     budget period, provided, however, that once the Cumulative DOE Obligation
     for the current budget period has been increased to $366,230.00, the
     recipient's obligation shall be increased to a total of $366,230.00.  In
     addition, DOE shall not be obligated to provide additional funding under
     this award.

10.  LOBBYING RESTRICTION
     --------------------

     The recipient agrees that none of the funds obligated on this award shall
     be expended, directly or indirectly, to influence congressional action on
     any legislation or appropriation matters pending before Congress, other
     than to communicate to members of Congress as described in 18 U.S.C. 1912.
     This restriction is in addition to those prescribed elsewhere in statute
     and regulation.

11.  RECIPIENT ACCOUNTING SYSTEM REVIEW
     ----------------------------------

     The recipient, as a condition of this award, shall develop its
     accounting/financial management system to meet the requirements of 10 CFR
     600.109, and in particular, ensure that it is one which segregates direct
     costs from indirect costs, properly recognizing indirect expenses as
     overhead expenses which have a pool and base to allocate their costs
     against specific projects, and permits a logical and consistent method of
     identification and accumulation of direct costs by project.  The
     recipient's accounting system shall be available for review by the
     conclusion of Phase I of this award's Project Period, or by the end of
     Budget Period I, and the DOE representatives assigned by the DOE Project
     Officer for this award to perform the accounting system review shall be
     permitted access to all Proton records deemed by the DOE reviewers to be
     relevant to the review.

12.  POTENTIAL PROGRAM INCOME
     ------------------------

     It is the intent of the parties (DOE and the recipient) that the HOGEN unit
     and hydrogen tank to be developed and produced by the recipient as part of
     Phase I of this project will be sold at the conclusion of Phase I, and that
     the proceeds from the sale(s) will be applied as cost-shared program income
     to the budget for Phase II/Budget Period 2 of the project

                                       6
<PAGE>

     period. Therefore, the recipient shall be required, prior to the conclusion
     of Phase I, to notify the Project Officer for this award of the expected
     value of these units, to include support therefor, and concurrently request
     disposition instructions for the units. The parties will negotiate the
     disposition and cost sharing arrangement relative to these units as part of
     the Phase II negotiations, or if no Phase II/Budget Period II occurs for
     this project, will negotiate a settlement relative to the units.

                                       7
<PAGE>

                                  APPENDIX D

                               DE-FC36-98GO10341

                              STATEMENT OF WORK,
                                    BUDGET,
                          AND REPORTING REQUIREMENTS
<PAGE>

                                                           Cooperative Agreement
                                                         DE-FC36-98GO10341, A000

                          PROTON ENERGY SYSTEMS, INC.
                               STATEMENT OF WORK

INTRODUCTION
------------

This project will develop a hydrogen energy storage pathway which produces
hydrogen through electrolysis powered from renewable and/or utility
interruptible power and firm, dispatchable power as the final output. In this
Phase I activity, a HOGEN electrolyzer coupled with a Stirling cycle generator
will provide the functional equivalence of batteries, but with greater energy
storage capacity and lower projected cost in production.

The Phase I system is comprised of 3 key elements:

 .        the PEM HOGEN hydrogen generator
 .        hydrogen storage via 400 psi gas tankage
 .        hydrogen-fueled STM electrical generator

Electrical power, supplied via the Science Applications International
Corporation-Stirling Thermal Motors (SAIC-STM) solar thermal conversion using
the Stirling cycle, electrolyses water to generate hydrogen at pressure from 150
to a goal of 400 psi. This hydrogen is then flowed directly into a low-cost
conventional storage tank without mechanical compression. The Phase I system is
configured to store a minimum of 200 kwh of power which allows the SAIC-STM to
operate 8 hours at a full 25 kw rating. To generate electricity, the hydrogen
gas is simply fed back into the SAIC-STM generator burner though a regulated
output connection.

PHASE I STATEMENT OF WORK
-------------------------

Task 1.0:  Detailed System Definition & Program Coordination

Under this task, PROTON will provide overall program coordination and detailed
technical definition of the system installation.

Task 1.1 Kickoff Meeting
------------------------

A kickoff meeting with PROTON, DOE, SAIC, and APS will be held at APS facilities
no later than four weeks after program start. This meeting will detail both
overall system design and coordinate particular site and related program
requirements.

Task 1.2 Installation & interface Definition
--------------------------------------------

After the kickoff meeting, a detailed set of installation specifications will be
prepared and used to define site preparation and installation requirements.

Task 1.3 Test Readiness Review
------------------------------

Prior to integration of the unit, a Test Readiness Review (TRR) will be
conducted at APS facilities to ensure all site and system requirements are met.

                                       2
<PAGE>

                                                           Cooperative Agreement
                                                         DE-FC36-98GO10341, A000

Task 1.4 Program Coordination
-----------------------------

This task includes ongoing program support, reporting, and support of the annual
DOE peer review.

Task 2.0:  Manufacturing & Delivery

Under this task, PROTON will fabricate and assemble one HOGEN electrolyzer
capable of (1) generating at least 150 Standard Cubic Feet per Hour (SCFH) of
hydrogen at a high-efficiency operating condition, and (2) delivering this
hydrogen to a storage tank at the APS test site at pressures ranging from 150 to
400 psi. The integrated system will be able to store enough hydrogen to provide
at least 200 kwh of energy when burned in the Stirling PCS for power generation.

The system will be delivered to the test site as a fully integrated unit, and
will be capable of remote monitoring.

After completion of the test effort as detailed in Task 3.0, the unit will be
removed from the APS site and returned to PROTON.

Task 3.0:  Integration and Test

Under this task, PROTON and SAIC-STM will integrate the HOGEN and PCS systems
with the storage tankage and establish system operation. Testing will commence
and continue for approximately 12 months. Data will be acquired and evaluated on
a periodic basis for the life of the test. Data from this testing will be used
to support business plan development.

APS, supported by SAIC, will provide general site management including:

         Providing access to APS - SAIC-STM generator site;
         Preparing site to accept the HOGEN system and storage tank;
         Providing power interface 480 VAC, 3 Phase, 50 amps;
         Providing water supply: potable water 1.0 GPH;
         Providing equipment pad: unit dimensions & interfaces attached for
generator and tank;
         Supporting installation review(s);
         Supporting PROTON installation of equipment;
         Assisting in receiving & unloading of equipment;
         Supporting development of energy storage test plan;
         Defining operating profiles;
         Defining test parameters;
         Reviewing reduced data;
         Operating integrated system in accordance with plan.

Task 4.0: Business Plan Development

This task includes literature surveys and direct customer contact surveys
leading to the development of a business plan that addresses hydrogen energy
storage products. These products will be based on the HOGEN/PCS Phase I cycle as
well as the PROTON UNIGEN. Data from Phase I testing will support both the
business plan preparation and the technical validation.
<PAGE>

<TABLE>
<S>                                   <C>                                             <C>
DOE F 4600.4                                                                          OMB Control No.
(04-94)                                     U.S. Department of Energy                       1910-0400
Replace EIA-459C                      Federal Assistance Budget Information
All Other Editions Are Obsolete
</TABLE>

                        OMB Burden Disclosure Statement
                        -------------------------------

Public reporting burden for this collection of information is estimated to
average 1.87 hours per response, including the time for reviewing instructions,
searching existing data sources, gathering and maintaining the data needed, and
completing and reviewing the collection of information. Send comments regarding
this burden estimate or any other aspect of this collection of information,
including suggestions for reducing this burden, to Office of Information
Resources Management, Policy, Plans and Oversight, Records Management Division.
HR-422 - GTN. Paperwork Reduction Project (1910-0400), U.S. Department of
Energy, 1000 Independence Avenue, S.W., Washington, DC 20585; and to the Office
of Management and Budget (OMB), Paperwork Reduction Project (1910-0400),
Washington, DC 20503

<TABLE>
<CAPTION>
-------------------------------------------------------------------------------------------------------------------------------
1.   Program/Project Identification No.                2.    Program/Project Title
     DE-FC36-98GO10341, A000                                     Integrated Renewable Hydrogen Utility System
                                                                           Budget Period 1
-------------------------------------------------------------------------------------------------------------------------------
<S>                                                    <C>
3.   Name and Address                                                                      4.  Program/Project Start Date
                           Proton Energy Systems, Inc.                                                     04/15/98
                           50 Inwood Road                                                --------------------------------------
                           Rocky Hill, CT 06067                                            5. Completion Date
                                                                                                               09/30/99
-------------------------------------------------------------------------------------------------------------------------------
                                                     SECTION A - BUDGET SUMMARY
-------------------------------------------------------------------------------------------------------------------------------
                                          Estimated Unobligated                       New or Revised Budget
                                                 Funds
-------------------------------------------------------------------------------------------------------------------------------
   Grant Program          Federal
    Function or         Catalog No.         Federal          Non-Federal          Federal         Non-Federal     Total
     Activity                                 (c)                (d)                (e)               (f)          (g)
        (a)                 (b)
-------------------------------------------------------------------------------------------------------------------------------
                          81.087                                                $366,230.00       $366,230.00     $732,460.00
-------------------------------------------------------------------------------------------------------------------------------

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

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

-------------------------------------------------------------------------------------------------------------------------------
5.  TOTALS                                                                      $366,230.00       $366,230.00     $732,460.00
-------------------------------------------------------------------------------------------------------------------------------
                                                    SECTION B - BUDGET CATEGORIES
-------------------------------------------------------------------------------------------------------------------------------
                                                            Grant Program, Function or Activity                   Total
6.  Object Class Categories                          ------------------------------------------------              (5)
                                                     (1)            (2)            (3)             (4)
-------------------------------------------------------------------------------------------------------------------------------
a.  Personnel                                     $48,079.00                                                       $48,079.00
-------------------------------------------------------------------------------------------------------------------------------
b.  Fringe Benefits                               $31,828.00                                                       $31,838.00
-------------------------------------------------------------------------------------------------------------------------------
c.  Travel                                        $26,598.00                                                       $26,598.00
-------------------------------------------------------------------------------------------------------------------------------
</TABLE>
<PAGE>

<TABLE>
-------------------------------------------------------------------------------------------------------------------------------
d.  Equipment                                     $136,172.00                                                      $136,172.00
<S>                                               <C>                                                              <C>
-------------------------------------------------------------------------------------------------------------------------------
e.  Supplies
-------------------------------------------------------------------------------------------------------------------------------
f.  Contractual                                   $ 97,805.00                                                      $ 97.805.00
-------------------------------------------------------------------------------------------------------------------------------
g.  Construction                                  $      0.00                                                      $      0.00
-------------------------------------------------------------------------------------------------------------------------------
h.  Other                                         $ 37,446.00                                                      $ 37,446.00
-------------------------------------------------------------------------------------------------------------------------------
i.  Total Direct Charges                          $377,928.00                                                      $377,928.00
-------------------------------------------------------------------------------------------------------------------------------
j.  Indirect Charges                              $354,532.00                                                      $354,532.00
-------------------------------------------------------------------------------------------------------------------------------
k.  TOTALS                                        $732,460.00                                                      $732,460.00
-------------------------------------------------------------------------------------------------------------------------------
7.  Program Income
-------------------------------------------------------------------------------------------------------------------------------
</TABLE>
<PAGE>

DOE F 4600.2
(09-92)                                   U.S. Department of Energy
Replace EIA-459A                    FEDERAL ASSISTANCE REPORTING CHECKLIST
All Other Editions Are Obsolete

<TABLE>
<CAPTION>
-----------------------------------------------------------------------------------------------------------------------------------
1.  Identification Number:                                          2.  Program/Project Title:
    DE-FC36-98GO10341,A000                                              Integrated Renewable/Hydrogen Utility System
<S>                                                                 <C>
-----------------------------------------------------------------------------------------------------------------------------------
3.  Recipient:
    Proton Energy Systems, Inc.
-----------------------------------------------------------------------------------------------------------------------------------
4.  Reporting Requirements:                                                 Frequency         No. of Copies         Addresses

-----------------------------------------------------------------------------------------------------------------------------------
     PROGRAM/PROJECT MANAGEMENT REPORTING
[_]  DOE F 4600.3, "Federal Assistance Milestone Plan"
[_]  DOE F 4600.3A, "Milestone Log"
     DOE F 4600.4, "Federal Assistance Budget Information"                      X                   2                  A=2
[_]  DOE F 4600.5, "Federal Assistance Management Summary Report"
[_]  DOE F 4600.6, "Federal Assistance Program/Project Status Report"
     SF-269 or SF-269A, "Financial Status Report" (SEE 5.d. below)              F                   2                  A=2
     TECHNICAL INFORMATION REPORTING
     DOE F 1430.22, Notice of Energy RD&D Project                              O,A                  2                  A=2
[_]  Technical Progress Report
[_]  Topical Report
     Final Technical Report                                                     F                   5              A=3,B=1,C=1
FREQUENCY CODES AND DUE DATES:
-----------------------------------------------------------------------------------------------------------------------------------
</TABLE>
A - As Necessary; within 5 calendar days after events.

F - Final; 90 calendar days after the performance of the effort ends.

Q - Quarterly; within 30 days after end of calendar quarter or portion thereof.

O - One time after project starts; within 30 days after award.

X - Required with proposals or the application or with significant planning
changes.

Y - Yearly; 30 days after the end of program year. (Financial Status Reports 90
days).

S - Semiannually; within 30 days after end of program fiscal half year.
--------------------------------------------------------------------------------
5.  Special Instructions:

     a.  See additional instructions for reporting in the following Attachment.

     b.  Requirements for submission of property inventory lists are included in
     the Attachment instructions.

     c. For initial award, the reports required by this checklist shall cover
     the period beginning with the initial Budget Period, OR the beginning date
     of the incurrence of pre-award costs, if any, whichever is earlier.

--------------------------------------------------------------------------------
6. Prepared by: (Signature and Date)        7. Reviewed by: (Signature and Date)
/s/ Douglas W. Hooker  5/5/98               /s/ Beth H. Peterman  5/6/98

       Douglas W. Hooker                            Beth H. Peterman

--------------------------------------------------------------------------------
<PAGE>

             ATTACHMENT TO FEDERAL ASSISTANCE REPORTING CHECKLIST

The requested quantity of reports for Addressee A shall be submitted to the
following address:

                            REPORTS CONTROL CENTER
                           U.S. Department of Energy
                              Golden Field Office
                                1617 Cole Blvd.
                             Golden, CO 80401-3393

The requested quantity of reports for Addressee B,C shall be submitted to the
following address:

    Sigmund Gronich, EE-13                          Neil Rossmeissel, EE-13
   U.S. Department of Energy                       U.S. Department of Energy
 1000 Independence Ave., S.W.                    1000 Independence Ave., S.W.
    Washington, D.C. 20585                           Washington, D.C. 20585

IMPORTANT INSTRUCTIONS FOR SUBMISSION OF TECHNICAL REPORTS:
----------------------------------------------------------

1.  Sent Camera-Ready Original plus high quality reproductions only, and PLEASE
submit the number of copies as required by the Federal Assistance Reporting
Checklist.

2.  Include a COMPLETED DOE F 1332.15, "Recommendations for the Announcement and
Distribution of Department of Energy (DOE) Scientific and Technical Information
(STI)" as the face page for ONE COPY of EVERY TECHNICAL report (Those listed
                            --------    ---------------
under "Technical Information Reporting").

3.  PLEASE MARK ALL REPORTS APPROPRIATELY. For example, "Draft Final Technical
Report," or "Approved Final Technical Report."

4.  The Frequency Codes and Due Dates indicated in Block 5 of the DOE F 4600.2
are supplemented with the additional instructions/clarifications, as follows:

Frequency              Date of Receipt by the Government
---------              ---------------------------------

A (As required)        Within 5 calendar days after the event initiating the
                       requirement for the report; the required delivery date
                       will be indicated by correspondence or by amendment.

F (Draft Final)        Within 45 calendar days after the completions date of
                       award.

F (Final)              Within 90 calendar days after the completions date of
                       award.

Q (Quarterly)          Within 30 calendar days after the end of the first
                       calendar year quarter (DUE dates: January 31, April 30,
                       July 31 and October 31; therefore, if an award occurs
                       during the first 45 days of a CY quarter, the first
                       quarterly is due that quarter, and if it occurs during
                       the latter 45 days of the CY quarter, the first quarterly
                       is due in the following CY quarter.)

O (Once only)          Within 30 calendar days of the instrument award date.

X                      With significant planning changes; the required delivery
                       date will be indicated by

Y                      Within 30 calendar days of each yearly date of award
                       (Financial Status Reports.

S (Semi-Annual)        Due April 30 and October 31.<PAGE>

                                                                    EXHIBIT 10.1

                         SECURITIES PURCHASE AGREEMENT

     This SECURITIES PURCHASE AGREEMENT (the "Agreement"), dated as of June 12,
2000, is entered into by and among Data Race Inc., a Texas corporation, with
headquarters located at 12400 Network Blvd., San Antonio, TX 78249-3341 (the
"Company"), and the investors listed on Schedule 1 attached hereto
                                        ----------
(individually, a "Buyer" and collectively, the "Buyers").

     WHEREAS:

     A.  The Company and the Buyers are executing and delivering this Agreement
in reliance upon the exemption from securities registration afforded by Rule 506
of Regulation D ("Regulation D") as promulgated by the United States Securities
and Exchange Commission (the "SEC") under the Securities Act of 1933, as amended
(the "1933 Act");

     B.  The Buyers wish to purchase, upon the terms and conditions stated in
this Agreement, an aggregate of 1,572,738 shares of the Company's Common Stock,
no par value per share (the "Common Shares"), in the respective amounts set
forth opposite each Buyer's name on Schedule 1 and warrants, in substantially
                                    ----------
the same form attached hereto as Exhibit D (the "Warrants") to acquire 471,822
                                 ---------
shares of Company Common Stock (as exercised, collectively, the "Warrant
Shares"); and

     C.  Contemporaneously with the execution and delivery of this Agreement,
the parties hereto are executing and delivering a Registration Rights Agreement
substantially in the form attached hereto as Exhibit A (the "Registration Rights
                                             ---------
Agreement") pursuant to which the Company has agreed to provide certain
registration rights under the 1933 Act and the rules and regulations promulgated
thereunder, and applicable state securities laws.

     NOW THEREFORE, the Company and the Buyers hereby agree as follows:

     1.  PURCHASE AND SALE OF COMMON SHARES.
         ----------------------------------

         a.  Purchase of Common Shares and Warrants.  In connection with the
             --------------------------------------
(the "Offering") by the Company of its common stock and warrants to the
Buyers, and subject to the satisfaction (or waiver) of the conditions set forth
in Sections 6 and 7 below, the Company shall issue and sell to each Buyer and
each Buyer severally agrees to purchase from the Company the respective number
of shares of Common Shares set forth opposite such Buyer's name on Schedule 1,
                                                                   ----------
along with Warrants to acquire the respective number of Warrant Shares set forth
opposite such Buyer's name on Schedule 1 (the "Closing").  The purchase price
                              ----------
(the "Purchase Price") of the Common Shares and the related Warrants at the
Closing shall be $6,000,000.

         b.  Closing Date.  The date and time of the Closing (the "Closing
             ------------
Date") shall be 10:00 a.m. Central Time, within three (3) business days
following the date hereof, subject to notification of satisfaction (or waiver)
of the conditions to the Closing set forth in Sections 6 and 7
<PAGE>

below (or such later date as is mutually agreed to by the Company and the
Buyers). The Closing shall occur on the Closing Date at the location mutually
agreed upon by the Buyers and the Company.

         c.  Form of Payment.  On the Closing Date, (i) subject to the
             ---------------
satisfaction (or waiver) of the conditions set forth in Section 7 below, each
Buyer shall pay the Purchase Price to the Company, for the Common Shares and
Warrants to be issued and sold to such Buyer at the Closing, by wire transfer of
immediately available funds in accordance with the Company's written wire
instructions, and (ii) subject to the satisfaction (or waiver) of the conditions
set forth in Section 6 below, the Company shall deliver to Strategic Investment
Counsel, LLC, c/o Anthony J. Ribaudo, Esq., located at 666 Dundee Road, Suite
1901, Northbrook, Illinois 60062, as the escrow agent (the "Escrow Agent"), on
behalf of each Buyer, stock certificates (in the denominations as such Buyer
shall request) (the "Common Share Certificates") representing such number of the
Common Shares which such Buyer is then purchasing (as indicated opposite such
Buyer's name on Schedule 1) along with the Warrants such Buyer is purchasing (as
                ----------
indicated opposite such Buyer's name on Schedule 1) hereunder, duly executed on
                                        ----------
behalf of the Company and registered in the name of such Buyer or its designee.
Upon the completion of the conditions contained in Sections 6 and 7 of this
Agreement, the Escrow Agent shall deliver the certificates representing the
Common Shares and the Warrants to the Buyers via overnight courier after the
Buyers have wired the Purchase Price to the Company.

     2.  BUYER'S REPRESENTATIONS AND WARRANTIES.
         --------------------------------------

         Each Buyer represents and warrants with respect to only itself that:

         a.  Investment Purpose.  Such Buyer is acquiring the Common Shares and
             ------------------
Warrants (the Common Shares, Warrants and Warrant Shares may also be referred to
herein as the "Securities"), for its own account for investment only and not
with a view towards, or for resale in connection with, the public sale or
distribution thereof, except pursuant to sales registered or exempted under the
1933 Act; provided, however, that by making the representations herein, such
Buyer does not agree to hold any of the Securities for any minimum or other
specific term and reserves the right to dispose of the Securities at any time in
accordance with or pursuant to a registration statement or an exemption under
the 1933 Act.

         b.  Accredited Investor Status.  Such Buyer is an "accredited investor"
             --------------------------
as that term is defined in Rule 501(a)(3) of Regulation D.

         c.  Reliance on Exemptions.  Such Buyer understands that the Securities
             ----------------------
are being offered and sold to it in reliance on specific exemptions from the
registration requirements of United States federal and state securities laws and
that the Company is relying in part upon the truth and accuracy of, and such
Buyer's compliance with, the representations, warranties, agreements,
acknowledgments and understandings of such Buyer set forth herein in order to
determine the availability of such exemptions and the eligibility of such Buyer
to acquire such Securities.

                                       2
<PAGE>

          d.   Information.  Such Buyer and its advisors, if any, have been
               -----------
furnished with all materials relating to the business, finances and operations
of the Company and materials relating to the offer and sale of the Securities
which have been requested by such Buyer. Such Buyer and its advisors, if any,
have been afforded the opportunity to ask questions of the Company. Neither such
inquiries nor any other due diligence investigations conducted by such Buyer or
its advisors, if any, or its representatives shall modify, amend or affect such
Buyer's right to rely on the Company's representations and warranties contained
in Section 3 below. Such Buyer understands that its investment in the Securities
involves a high degree of risk. Such Buyer has sought such accounting, legal and
tax advice as it has considered necessary to make an informed investment
decision with respect to its acquisition of the Securities. Such Buyer
understands that only officers of the Company are authorized to provide
information on behalf of the Company and that no other person is authorized to
provide information on the Company's behalf. Such Buyer acknowledges that it has
reviewed the SEC Documents (as defined below) and information set forth under
the heading "Risk Factors" in the Company's annual report on Form 10-K filed
October 1, 1999.

          e.   No Governmental Review.  Such Buyer understands that no United
               ----------------------
States federal or state agency or any other government or governmental agency
has passed on or made any recommendation or endorsement of the Securities or the
fairness or suitability of the investment in the Securities nor have such
authorities passed upon or endorsed the merits of the offering of the
Securities.

          f.   Transfer or Resale.  Such Buyer understands that except as
               ------------------
provided in the Registration Rights Agreement: (i) the Securities have not been
and are not being registered under the 1933 Act or any state securities laws,
and may not be offered for sale, sold, assigned or transferred unless (A)
subsequently registered thereunder, (B) such Buyer shall have delivered to the
Company an opinion of counsel, in a generally acceptable form, to the effect
that such Securities to be sold, assigned or transferred may be sold, assigned
or transferred pursuant to an exemption from such registration, or (C) such
Buyer provides the Company with reasonable assurance that such Securities can be
sold, assigned or transferred pursuant to Rule 144 promulgated under the 1933
Act, as amended, (or a successor rule thereto) ("Rule 144"); and (ii) any sale
of the Securities made in reliance on Rule 144 may be made only in accordance
with the terms of Rule 144 and further, and if Buyer intends to utilize Rule 144
but Rule 144 is not applicable to such resale, any resale of the Securities
under circumstances in which the Buyer (or the person through whom the sale is
made) may be deemed to be an underwriter (as that term is defined in the 1933
Act) may require compliance with some other exemption under the 1933 Act or the
rules and regulations of the SEC thereunder.

          g.   Legends.  Such Buyer understands that the certificates or other
               -------
instruments representing the Warrants, Warrant Shares, and Common Shares, except
as set forth below, shall bear a restrictive legend in substantially the
following form (and a stop-transfer order may be placed against transfer of such
stock certificates):

     THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED
     UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR

                                       3
<PAGE>

     APPLICABLE STATE SECURITIES LAWS. THE SECURITIES HAVE BEEN ACQUIRED
     FOR INVESTMENT AND MAY NOT BE OFFERED FOR SALE, SOLD, TRANSFERRED OR
     ASSIGNED (1) IN THE ABSENCE OF AN EFFECTIVE REGISTRATION STATEMENT
     FOR THE SECURITIES UNDER THE SECURITIES ACT OF 1933, AS AMENDED
     (THE "1933 ACT"), OR APPLICABLE STATE SECURITIES LAWS, OR (2) IN THE
     ABSENCE OF AN OPINION OF COUNSEL, IN A GENERALLY ACCEPTABLE FORM, THAT
     REGISTRATION IS NOT REQUIRED UNDER THE 1933 ACT OR (3) UNLESS SOLD,
     TRANSFERRED OR ASSIGNED PURSUANT TO RULE 144 UNDER SAID ACT.

The legend set forth above shall be removed and the Company shall issue a
certificate without such legend to the holder of the Securities upon which it is
stamped, if, unless otherwise required by state securities laws, (i) such
Securities are registered and sold under the 1933 Act, (ii) in connection with a
sale transaction, such holder provides the Company with an opinion of counsel,
in a generally acceptable form, to the effect that a public sale, assignment or
transfer of the Securities may be made without registration under the 1933 Act,
or (iii) such holder provides the Company with reasonable assurances that the
Securities can be sold pursuant to Rule 144 without any restriction as to the
number of securities acquired as of a particular date that can then be
immediately sold.

          h.   Validity; Enforcement.  This Agreement has been duly and validly
               ---------------------
authorized, executed and delivered on behalf of such Buyer and is a valid and
binding agreement of such Buyer enforceable against such Buyer in accordance
with its terms, subject as to enforceability to general principles of equity and
to applicable bankruptcy, insolvency, reorganization, moratorium, liquidation
and other similar laws relating to, or affecting generally, the enforcement of
applicable creditors' rights and remedies.

          i.   Residency.  Such Buyer is a resident of that country and state
               ---------
specified in its address on Schedule 1.
                            ----------

          j.   No Broker-Dealer Affiliation.  Such Buyer is not an affiliate
               ----------------------------
(as that term is defined in Rule 144(a) promulgated under the 1933 Act) of a
broker-dealer registered with the SEC.

          k.   Short Sales.  No Buyer shall have as of the Closing Date, and
               -----------
no Buyer shall have had during the 10 business days prior to the Closing Date,
any net short position, put option or other similar exchange-traded instrument
with respect to the Company's Common Stock.

     3.   REPRESENTATIONS AND WARRANTIES OF THE COMPANY.
          ---------------------------------------------

          The Company represents and warrants to each of the Buyers that:

          a.   Organization and Qualification.  The Company and its
               ------------------------------
"Subsidiaries" (which for purposes of this Agreement means any entity in which
the Company, directly or indirectly, owns a controlling position of capital
stock or holds a controlling position of an equity or similar interest) are
corporations duly organized and validly existing in good standing under the

                                       4
<PAGE>

laws of the jurisdiction in which they are incorporated, and have the requisite
corporate power and authorization to own their properties and to carry on their
business as now being conducted. Each of the Company and its Subsidiaries is
duly qualified as a foreign corporation to do business and is in good standing
in every jurisdiction in which its ownership of property or the nature of the
business conducted by it makes such qualification necessary, except to the
extent that the failure to be so qualified or be in good standing would not have
a Material Adverse Effect. As used in this Agreement, "Material Adverse Effect"
means any material adverse effect on the business, properties, assets,
operations, results of operations or financial condition of the Company and its
Subsidiaries, if any, taken as a whole, or on the transactions contemplated
hereby or by the agreements and instruments to be entered into in connection
herewith, or on the authority or ability of the Company to perform its
obligations under the Transaction Documents (as defined below).

          b.  Authorization; Enforcement; Validity.  (i) The Company has the
              ------------------------------------
requisite corporate power and authority to enter into and perform this
Agreement, the Registration Rights Agreement, the Transfer Agent Instructions
(as defined in Section 5), the Warrants and each of the other agreements entered
into by the parties hereto in connection with the transactions contemplated by
this Agreement (collectively, the "Transaction Documents"), and to issue the
Securities in accordance with the terms hereof and thereof, (ii) the execution
and delivery of the Transaction Documents by the Company and the consummation by
it of the transactions contemplated hereby and thereby, including without
limitation the issuance of the Common Shares and the Warrants and the
reservation for issuance and the issuance of the Warrant Shares issuable upon
exercise thereof, have been duly authorized by the Company's Board of Directors
and no further consent or authorization is required by the Company, its Board of
Directors or its stockholders, (iii) the Transaction Documents have been duly
executed and delivered by the Company, and (iv) the Transaction Documents
constitute the valid and binding obligations of the Company enforceable against
the Company in accordance with their terms, except as such enforceability may be
limited by general principles of equity or applicable bankruptcy, insolvency,
reorganization, moratorium, liquidation or similar laws relating to, or
affecting generally, the enforcement of creditors' rights and remedies.

          c.  Issuance of Securities.  The Common Shares and Warrants are duly
              ----------------------
authorized and, upon issuance in accordance with the terms hereof, shall be (i)
validly issued, fully paid and non-assessable and (ii) free from all taxes,
liens and charges with respect to the issue thereof. 471,822 shares of Common
Stock have been duly authorized and reserved for issuance upon exercise of the
Warrants.  Upon exercise in accordance with the Warrants, the Warrant Shares
will be validly issued, fully paid and nonassessable and free from all taxes,
liens and charges with respect to the issue thereof, with the holders being
entitled to all rights accorded to a holder of Common Stock.  The issuance by
the Company of the Securities is exempt from registration under the 1933 Act.

          d.  No Conflicts.  The execution, delivery and performance of the
              ------------
Transaction Documents by the Company and the consummation by the Company of the
transactions contemplated hereby and thereby (including, without limitation, the
Company's issuance of the Common Shares and the reservation for issuance and
issuance of the Warrant Shares) will not (i)

                                       5
<PAGE>

result in a violation of the Company's Articles of Incorporation, as amended and
as in effect on the date hereof (the "Articles of Incorporation") or the
Company's By-laws, as amended and as in effect on the date hereof (the "By-
laws") or (ii) conflict with, or constitute a default (or an event which with
notice or lapse of time or both would become a default) under, or give to others
any rights of termination, amendment, acceleration or cancellation of, any
material agreement, indenture or instrument to which the Company or any of its
Subsidiaries is a party, or result in a violation of any law, rule, regulation,
order, judgment or decree (including federal and state securities laws and
regulations and the rules and regulations of the Principal Market (as defined
below)) applicable to the Company or any of its Subsidiaries or by which any
property or asset of the Company or any of its Subsidiaries is bound or
affected; provided that the issuance of the Common Shares at a discount from the
current market price will result in typical anti-dilution adjustments to
outstanding warrants. Neither the Company nor its Subsidiaries is in violation
of any term of or in default under its Articles of Incorporation, or By-laws or
their organizational charter or by-laws, respectively. Neither the Company or
any of its Subsidiaries is in violation of any term of or in default under any
contract, agreement, mortgage, indebtedness, indenture, instrument, judgment,
decree or order or any statute, rule or regulation applicable to the Company or
its Subsidiaries, except for possible conflicts, defaults, terminations,
amendments which would not reasonably be expected to have a Material Adverse
Effect. The business of the Company and its Subsidiaries is not being conducted,
and shall not be conducted, in violation of any law, ordinance, regulation of
any governmental entity, except for possible violations the sanctions for which
either individually or in the aggregate would not reasonably be expected to have
a Material Adverse Effect. Except as specifically contemplated by the
Transaction Documents and as required under the 1933 Act, the Company is not
required to obtain any consent, authorization or order of, or make any filing or
registration with, any court or governmental agency or any regulatory or self-
regulatory agency in order for it to execute, deliver or perform any of its
obligations under or contemplated by the Transaction Documents in accordance
with the terms hereof or thereof. All consents, authorizations, orders, filings
and registrations which the Company is required to obtain prior to Closing
pursuant to the preceding sentence have been obtained or effected on or prior to
the date hereof. The Company and its Subsidiaries are unaware of any facts or
circumstances which might give rise to any of the foregoing. The Company is not
in violation of the listing requirements of the Principal Market (as defined
below).

          e.  SEC Documents; Financial Statements.  As of the Closing, the
              -----------------------------------
Company has filed all reports, schedules, forms, statements and other documents
required to be filed by it with the SEC pursuant to the reporting requirements
of the Securities Exchange Act of 1934, as amended (the "1934 Act") (all of the
foregoing filed since June 30, 1999 and all exhibits included therein and
financial statements and schedules thereto and documents incorporated by
reference therein being hereinafter referred to as the "SEC Documents"). As of
their respective dates, the SEC Documents complied in all material respects with
the requirements of the 1934 Act and the rules and regulations of the SEC
promulgated thereunder applicable to the SEC Documents, and none of the SEC
Documents, at the time they were filed with the SEC, contained any untrue
statement of a material fact or omitted to state a material fact required to be
stated therein or necessary in order to make the statements therein, in light of
the circumstances under which they were made, not misleading. As of their
respective dates, the financial statements of the Company included in the SEC
Documents complied as to form in all material respects with applicable
accounting requirements and the

                                       6
<PAGE>

published rules and regulations of the SEC with respect thereto. Such financial
statements have been prepared in accordance with generally accepted accounting
principles, consistently applied, during the periods involved (except (i) as may
be otherwise indicated in such financial statements or the notes thereto, or
(ii) in the case of unaudited interim statements, to the extent they may exclude
footnotes or may be condensed or summary statements) and fairly present in all
material respects the financial position of the Company as of the dates thereof
and the results of its operations and cash flows for the periods then ended
(subject, in the case of unaudited statements, to normal year-end audit
adjustments). No other information provided by or on behalf of the Company to
the Buyers which is not included in the SEC Documents contains any untrue
statement of a material fact or omits to state any material fact necessary in
order to make the statements therein, in the light of the circumstance under
which they are or were made, not misleading. Neither the Company nor any of its
Subsidiaries or any of their officers, directors, employees or agents have
provided the Buyers with any material, nonpublic information. The
representations herein are subject to Schedule 3(e).
                                      -------------

          f.  Absence of Certain Changes.  Since the most recent 1934 Act filing
              --------------------------
by the Company with the SEC, there has been no material adverse change and no
material adverse development in the business, properties, operations, financial
condition or results of operations of the Company or its Subsidiaries. The
Company has not taken any steps, and does not currently expect to take any
steps, to seek protection pursuant to any bankruptcy law nor does the Company or
any of its Subsidiaries have any knowledge or reason to believe that its
creditors intend to initiate involuntary bankruptcy proceedings.

          g.  Absence of Litigation.  Except as set forth in the SEC Documents,
              ---------------------
there is no action, suit, proceeding, inquiry or investigation before or by any
court, public board, government agency, self-regulatory organization or body
pending or, to the knowledge of the Company or any of its Subsidiaries,
threatened against or materially adversely affecting the Company, the Company's
common stock, the Common Shares or any of the Company's Subsidiaries or any of
the Company's or the Company's Subsidiaries' officers or directors in their
capacities as such.

          h.  [Reserved].

          i.  No Undisclosed Events, Liabilities, Developments or Circumstances.
              -----------------------------------------------------------------
No event, liability, development or circumstance has occurred or exists, or is
contemplated to occur, with respect to the Company or its Subsidiaries or their
respective business, properties, prospects, operations or financial condition,
that would be required to be disclosed by the Company under applicable
securities laws on a registration statement filed with the SEC relating to an
issuance and sale by the Company of its common stock and which has not been
publicly announced.

          j.  No General Solicitation.  Neither the Company, nor any of its
              -----------------------
affiliates, nor any person acting on its or their behalf, has engaged in any
form of general solicitation or general advertising (within the meaning of
Regulation D under the 1933 Act) in connection with the offer or sale of the
Securities.

          k.  No Integrated Offering.  Neither the Company, nor any of its
              ----------------------
affiliates, nor any person acting on its or their behalf has, directly or
indirectly, made any offers or sales of any

                                       7
<PAGE>

security or solicited any offers to buy any security, under circumstances that
would require registration of any of the Securities under the 1933 Act or cause
this offering of the Securities to be integrated with prior offerings by the
Company for purposes of the 1933 Act or any applicable stockholder approval
provisions, including, without limitation, under the rules and regulations of
any exchange or automated quotation system on which any of the securities of the
Company are listed or designated, nor will the Company or any of its
Subsidiaries take any action or steps that would require registration of any of
the Securities under the 1933 Act or cause the offering of the Securities to be
integrated with other offerings.

          l.  Employee Relations.  Neither the Company nor any of its
              ------------------
Subsidiaries is involved in any union labor dispute nor, to the knowledge of the
Company or any of its Subsidiaries, is any such dispute threatened.

          m.  Intellectual Property Rights. To the best of their knowledge, the
              ----------------------------
Company and its Subsidiaries own or possess adequate rights or licenses to use
all trademarks, trade names, service marks, service mark registrations, service
names, patents, patent rights, copyrights, inventions, licenses, approvals,
governmental authorizations, trade secrets and rights necessary to conduct their
respective businesses as now conducted.  To the best of their knowledge, none of
the Company's trademarks, trade names, service marks, service mark
registrations, service names, patents, patent rights, copyrights, inventions,
licenses, approvals, government authorizations, trade secrets or other
intellectual property rights necessary to conduct its business have expired or
terminated, or are expected to expire or terminate within two years from the
date of this Agreement.  The Company and its Subsidiaries do not have any
knowledge of any infringement by the Company or its Subsidiaries of trademark,
trade name rights, patents, patent rights, copyrights, inventions, licenses,
service names, service marks, service mark registrations, trade secret or other
similar rights of others, or of any such development of similar or identical
trade secrets or technical information by others and the Company and its
Subsidiaries are unaware of any facts or circumstances which might give rise to
any of the foregoing.  The Company and its Subsidiaries have taken reasonable
security measures to protect the secrecy, confidentiality and value of all of
their intellectual properties.

          n.  Environmental Laws.  The Company and its Subsidiaries (i) are in
              ------------------
compliance with any and all applicable foreign, federal, state and local laws
and regulations relating to the protection of human health and safety, the
environment or hazardous or toxic substances or wastes, pollutants or
contaminants ("Environmental Laws"), (ii) have received all permits, licenses or
other approvals required of them under applicable Environmental Laws to conduct
their respective businesses and (iii) are in compliance with all terms and
conditions of any such permit, license or approval; except for, in each of the
foregoing cases, the failure to so comply would not reasonably be expected to
have a Material Adverse Effect.

          o.  Title.  The Company and its Subsidiaries have good and marketable
              -----
title in fee simple to all real property and good and marketable title to all
personal property owned by them which is material to the business of the Company
and its Subsidiaries, in each case free and clear of all liens, encumbrances and
defects except such as are described in the SEC Documents or such as do not
materially affect the value of such property and do not interfere with the use
made and

                                       8
<PAGE>

proposed to be made of such property by the Company and any of its Subsidiaries.
Any real property and facilities held under lease by the Company and any of its
Subsidiaries are held by them under valid, subsisting and enforceable leases
with such exceptions as are not material and do not interfere with the use made
and proposed to be made of such property and buildings by the Company and its
Subsidiaries.

          p.  Insurance.  The Company and each of its Subsidiaries are insured
              ---------
by insurers of recognized financial responsibility against such losses and risks
and in such amounts as management of the Company believes to be prudent and
customary in the businesses in which the Company and its Subsidiaries are
engaged and the Company does not have any reason to believe it will not be able
to renew its existing insurance coverage under substantially similar terms for
the next two (2) years.

          q.  Regulatory Permits.  The Company and its Subsidiaries possess all
              ------------------
certificates, authorizations and permits issued by the appropriate federal,
state or foreign regulatory authorities necessary to conduct their respective
businesses (except where the failure to so comply would not reasonably be
expected to have a Material Adverse Effect), and neither the Company nor any
such Subsidiary has received any notice of proceedings relating to the
revocation or modification of any such certificate, authorization or permit.

          r.  Tax Status.  The Company and each of its Subsidiaries has made or
              ----------
filed all federal and state income and all other tax returns, reports and
declarations required by any jurisdiction to which it is subject (unless and
only to the extent that the Company and each of its Subsidiaries has set aside
on its books provisions reasonably adequate for the payment of all unpaid and
unreported taxes) and has paid all taxes and other governmental assessments and
charges that are material in amount, shown or determined to be due on such
returns, reports and declarations, except those being contested in good faith
and has set aside on its books provision reasonably adequate for the payment of
all taxes for periods subsequent to the periods to which such returns, reports
or declarations apply. There are no unpaid taxes in any material amount claimed
to be due by the taxing authority of any jurisdiction, and the officers of the
Company know of no basis for any such claim.

          s.  Transactions With Affiliates.  Except as set forth in the SEC
              ----------------------------
Documents filed at least ten days prior to the date hereof, and except for
transactions which are entered into on arm's length terms pursuant to which the
Company makes payments in the ordinary course of business upon terms no less
favorable than the Company could obtain from third parties unaffiliated with the
Company, and except for grants and payments pursuant to employee benefit plans
approved by the Company's board of directors, none of the officers, directors,
or employees or controlling shareholders of the Company is presently a party to
any transaction with the Company or any of its Subsidiaries (other than for
services as employees, officers and directors), including any contract,
agreement or other arrangement providing for the furnishing of services to or
by, providing for rental of real or personal property to or from, or otherwise
requiring payments to or from any officer, director or such employee or, to the
knowledge of the Company, any corporation, partnership, trust

                                       9
<PAGE>

or other entity in which any officer, director, or any such employee has a
substantial interest or is an officer, director, trustee or partner.

          t.  Eligibility.  The Company is currently eligible to register the
              -----------
resale of the Common Shares on a registration statement on Form S-3 under the
1933 Act.

     4.   COVENANTS.
          ---------

          a.  Best Efforts.  Each party shall use its best efforts timely to
              ------------
satisfy each of the conditions to be satisfied by it as provided in Sections 6
and 7 of this Agreement.

          b.  Form D and Blue Sky.  The Company agrees to file a Form D with
              -------------------
respect to the Securities as required under Regulation D and to provide a copy
thereof to each Buyer promptly after such filing. The Company shall, on or
before the Closing Date, take such action as the Company shall reasonably
determine is necessary in order to obtain an exemption for or to qualify the
Securities for sale to the Buyers at the Closing pursuant to this Agreement
under applicable securities or "Blue Sky" laws of the states of the United
States, and shall provide evidence of any such action so taken to the Buyers on
or prior to the Closing Date. The Company shall make all filings and reports
relating the offer and sale of the Securities required under applicable
securities or "Blue Sky" laws of the states of the United States following the
Closing Date.

          c.  Reporting Status.  Until the earlier of (i) the date which is one
              ----------------
year after the date as of which the Investors (as that term is defined in the
Registration Rights Agreement) may sell all of the Common Shares without
restriction pursuant to Rule 144(k) promulgated under the 1933 Act (or successor
thereto), or (ii) the date on which the Investors shall have sold all the Common
Shares and Warrant Shares (the "Registration Period"), the Company shall file
all reports required to be filed with the SEC pursuant to the 1934 Act, and the
Company shall not terminate its status as an issuer required to file reports
under the 1934 Act even if the 1934 Act or the rules and regulations thereunder
would otherwise permit such termination.

          d.  [Reserved].

          e.  Right of First Refusal.  Subject to the exceptions described
              ----------------------
below, the Company and its Subsidiaries shall not negotiate or contract with any
party for any equity financing (including any debt financing with an equity
component) or issue any equity securities of the Company or any Subsidiary or
securities convertible or exchangeable into or for equity securities of the
Company or any Subsidiary (including debt securities with an equity component)
in any form ("Future Offerings") during the period beginning on the date hereof
and ending on, and including, the date which is 180 days after the Closing Date,
unless it shall have first delivered to each Buyer or a designee appointed by
such Buyer written notice (the "Future Offering Notice") describing the proposed
Future Offering, including the terms and conditions thereof, and providing each
Buyer an option to purchase up to its Aggregate Percentage (as defined below) of
the securities to be issued in such Future Offering, as of the date of delivery
of the Future Offering Notice, in the Future Offering (the limitations referred
to in this sentence are referred to as the "Capital Raising

                                       10
<PAGE>

Limitations"). For purposes of this Section 4(e), "Aggregate Percentage" at any
time with respect to any Buyer shall mean the percentage obtained by dividing
(i) the aggregate number of the Common Shares initially issued at the Closing to
such Buyer by (ii) the aggregate number of the Common Shares sold to the Buyers
by the Company at the Closing in connection with the Offering. A Buyer can
exercise its option to participate in a Future Offering by delivering written
notice thereof to participate to the Company within five (5) business days after
receipt of a Future Offering Notice, which notice shall state the quantity of
securities being offered in the Future Offering that such Buyer will purchase,
up to its Aggregate Percentage, and that number of securities it is willing to
purchase in excess of its Aggregate Percentage. In the event that one or more
Buyers fail to elect to purchase up to each such Buyer's Aggregate Percentage,
then each Buyer which has indicated that it is willing to purchase a number of
securities in such Future Offering in excess of its Aggregate Percentage shall
be entitled to purchase its pro rata portion (determined in the same manner as
described in the preceding sentence) of the securities in the Future Offering
which one or more of the Buyers have not elected to purchase. In the event the
Buyers fail to elect to fully participate in the Future Offering within the
period described in this Section 4(e), the Company shall have 90 days thereafter
to sell the securities of the Future Offering that the Buyers did not elect to
purchase, upon terms and conditions, no more favorable to the purchasers thereof
than specified in the Future Offering Notice. In the event the Company has not
sold such securities of the Future Offering within such 90 day period, the
Company shall not thereafter issue or sell such securities without first
offering such securities to the Buyers in the manner provided in this Section
4(e). The Capital Raising Limitations shall not apply to (i) a loan from a
commercial bank which has only an incidental equity feature, (ii) any
transaction involving the Company's issuances of securities (A) as consideration
in a merger or consolidation, (B) in connection with a strategic partnership or
joint venture (the primary purpose of which is not to raise equity capital), or
(C) as consideration for the acquisition of a business, product, license or
other assets by the Company, (iii) the issuance of common stock in a firm
commitment, underwritten public offering, (iv) the issuance of securities upon
exercise or conversion of the Company's options, warrants or other convertible
securities outstanding as of the date hereof, (v) the grant of additional
options or warrants, or the issuance of additional securities, under any Company
stock option plan, restricted stock plan, stock purchase plan or other plan or
written compensation agreement for the benefit of the Company's employees,
directors, consultants or advisors, or (vi) the issuance of securities pursuant
to any shareholder rights plan adopted by the Company prior to the Closing ((i)
through (vi) collectively, the "Exempt Issuances"). The Buyers shall not be
required to participate or exercise their right of first refusal with respect to
a particular Future Offering in order to exercise their right of first refusal
with respect to later Future Offerings.

          f.  Listing.  The Company shall promptly secure the listing of all of
              -------
the Registrable Securities (as that term is defined in the Registration Rights
Agreement) upon each national securities exchange, automated quotation system or
bulletin board system, if any, upon which shares of the Company's common stock
are then listed (subject to official notice of issuance) and shall maintain, so
long as any other shares of common stock shall be so listed, such listing of all
Registrable Securities from time to time issuable under the terms of the
Transaction Documents.  The Company shall use its bests efforts to maintain the
Common Stock's authorization for quotation on the Nasdaq National Market, Nasdaq
Small-Cap Market, The New York Stock Exchange, Inc.

                                       11
<PAGE>

or The American Stock Exchange, Inc., (as applicable, the "Principal Market").
Neither the Company nor any of its Subsidiaries shall take any action which
would be reasonably expected to result in the delisting or suspension of Company
common stock on the Principal Market. The Company shall promptly, but in no
event later than the public disclosure of such information, provide to each
Buyer copies of any notices it receives from the Principal Market regarding the
continued eligibility of Company common stock for listing on such automated
quotation system or securities exchange. The Company shall pay all fees and
expenses in connection with satisfying its obligations under this Section 4(f).

          g.  Reservation of Shares.  The Company shall take all action
              ---------------------
necessary to at all times have authorized, and reserved for the purpose of
issuance, no less than 100% of the number of shares of Common Stock needed to
provide for the issuance of the shares of Common Stock upon exercise of all
outstanding Warrants.

          h.  [Reserved].

          i.  Limitation on Filing Registration Statements.  The Company shall
              --------------------------------------------
not file a registration statement (other than the Registration Statement (as
defined in the Registration Rights Agreement) or a registration statement on
Form S-8) covering the sale or resale of shares of Company common stock with the
SEC during the period beginning on the date hereof and ending on the date which
is 90 days after the Registration Statement has been declared effective by the
SEC.

          j.  Independent Auditors.  The Company shall, until at least three (3)
              --------------------
years after the Closing Date, maintain as its independent auditors an accounting
firm authorized to practice before the SEC.

                                       12
<PAGE>

     5.   TRANSFER AGENT INSTRUCTIONS.
          ---------------------------

          The Company shall issue irrevocable instructions to the Transfer
Agent, and any subsequent transfer agent, substantially in the form of Exhibit B
                                                                       ---------
hereto (the "Transfer Agent Instructions") and use its best efforts, without
incurring additional fees, to obtain the Transfer Agent's agreement thereto.
Prior to registration of the Common Shares and Warrant Shares under the 1933
Act, all such certificates shall bear the restrictive legend specified in
Section 2(g) of this Agreement. The Company warrants that no instruction other
than the Transfer Agent Instructions referred to in this Section 5, and stop
transfer instructions to give effect to Section 2(f) hereof will be given by the
Company to its Transfer Agent and that the Securities shall otherwise be freely
transferable on the books and records of the Company as and to the extent
provided in this Agreement and the Registration Rights Agreement. Nothing in
this Section 5 shall affect in any way each Buyer's obligations and agreements
set forth in Section 2(g) to comply with all applicable prospectus delivery
requirements, if any, upon resale of the Securities. If a Buyer provides the
Company with an opinion of counsel, in a generally acceptable form, to the
effect that a public sale, assignment or transfer of the Securities may be made
without registration under the 1933 Act or the Buyer provides the Company with
reasonable assurances that the Securities can be sold pursuant to Rule 144
without any restriction as to the number of securities acquired as of a
particular date that can then be immediately sold, the Company shall permit the
transfer, and, promptly instruct its Transfer Agent to issue one or more
certificates in such name and in such denominations as specified by such Buyer
and without any restrictive legend. The Company acknowledges that a breach by it
of its obligations hereunder will cause irreparable harm to the Buyers by
vitiating the intent and purpose of the transaction contemplated hereby.
Accordingly, the Company acknowledges that the remedy at law for a breach of its
obligations under this Section 5 will be inadequate and agrees, in the event of
a breach or threatened breach by the Company of the provisions of this Section
5, that the Buyers shall be entitled, in addition to all other available
remedies, to an order and/or injunction restraining any breach and requiring
immediate issuance and transfer, without the necessity of showing economic loss
and without any bond or other security being required.

     6.   CONDITIONS TO THE COMPANY'S OBLIGATION TO SELL.
          ----------------------------------------------

          The obligation of the Company hereunder to issue and sell the Common
Shares and Warrants to each Buyer at the Closing is subject to the satisfaction,
at or before the Closing Date, of each of the following conditions, provided
that these conditions are for the Company's sole benefit and may be waived by
the Company at any time in its sole discretion by providing each Buyer with
prior written notice thereof:

          a.  Such Buyer shall have executed each of the Transaction Documents
to which it is a party and delivered the same to the Escrow Agent for the
transactions contemplated by this Agreement;

          b.  The representations and warranties of such Buyer shall be true and
correct in all material respects as of the date when made and as of the Closing
Date as though made at that time (except for representations and warranties that
speak as of a specific date), and such Buyer shall have

                                       13
<PAGE>

performed, satisfied and complied in all material respects with the covenants,
agreements and conditions required by this Agreement to be performed, satisfied
or complied with by such Buyer at or prior to the Closing Date; and

          c.  Such Buyer shall have delivered to the Escrow Agent such other
documents relating to the transactions contemplated by this Agreement as the
Escrow Agent may reasonably request.

     7.   CONDITIONS TO EACH BUYER'S OBLIGATION TO PURCHASE.
          -------------------------------------------------

          The obligation of each Buyer hereunder to purchase the Common Shares
and Warrants at the Closing is subject to the satisfaction, at or before the
Closing Date, of each of the following conditions, provided that these
conditions are for each Buyer's sole benefit and may be waived by such Buyer at
any time in its sole discretion by providing the Company with prior written
notice thereof:

          a.  The Company shall have executed each of the Transaction Documents
and delivered the same to the Escrow Agent;

          b.  The Company's common stock shall be authorized for quotation on
the Principal Market and trading in Company common stock shall not have been
suspended by the SEC or the Principal Market;

          c.  The representations and warranties of the Company shall be true
and correct as of the date when made and as of the Closing Date as though made
at that time (except for representations and warranties that speak as of a
specific date) and the Company shall have performed, satisfied and complied with
the covenants, agreements and conditions required by the Transaction Documents
to be performed, satisfied or complied with by the Company at or prior to the
Closing Date;

          d.  The Company shall have delivered to the Escrow Agent the opinion
of the Company's counsel dated as of the Closing Date, in form, scope and
substance reasonably satisfactory to such Buyer and in substantially the form of
Exhibit C attached hereto;
---------

          e.  The Company shall have executed and delivered to the Escrow Agent
the Warrants and the certificates representing Common Shares (in such
denominations as such Buyer shall request) for the Common Shares being purchased
by such Buyer at the Closing;

          f.  The Transfer Agent Instructions, in the form of Exhibit B attached
                                                              ---------
hereto, shall have been executed by the Company and delivered to the Company's
transfer agent and a copy of the Company executed Transfer Agent Instructions
shall have been delivered to the Escrow Agent;

          g.  The Company shall have made all filings, other than those
contemplated by the Registration Rights Agreement, under all applicable federal
and state securities laws necessary

                                       14
<PAGE>

to consummate the issuance of the Securities pursuant to this Agreement in
compliance with such laws;

          h.  The Company shall have delivered to the Escrow Agent such other
documents relating to the transactions contemplated by this Agreement as the
Escrow Agent may reasonably request; and

          i.  Subject to Section 11(l) below, at Closing, the Company shall
reimburse the Buyers for the Buyers' attorneys' fees and expenses (in an amount
not to exceed $10,000.00) incurred by the Buyers concerning the due diligence
review of the contemplated transactions and the Company, and the negotiation and
preparation of the Transaction Documents and the consummation of the
transactions contemplated thereby.

     8.   INDEMNIFICATION.
          ---------------

          In consideration of each Buyer's execution and delivery of the
Transaction Documents and acquiring the Securities thereunder and in addition to
all of the Company's other obligations under the Transaction Documents, the
Company shall defend, protect, indemnify and hold harmless each Buyer and each
other holder of the Securities and all of their stockholders, officers,
directors, employees and direct or indirect investors and any of the foregoing
person's agents or other representatives (including, without limitation, those
retained in connection with the transactions contemplated by this Agreement)
(collectively, the "Indemnitees") from and against any and all actions, causes
of action, suits, claims, losses, costs, penalties, fees, liabilities and
damages, and expenses in connection therewith (irrespective of whether any such
Indemnitee is a party to the action for which indemnification hereunder is
sought), and including reasonable attorneys' fees and disbursements (the
"Indemnified Liabilities"), incurred by any Indemnitee as a result of, or
arising out of, or relating to (a) any misrepresentation or breach of any
representation or warranty made by the Company in the Transaction Documents or
any other certificate, instrument or document contemplated hereby or thereby,
(b) any breach of any covenant, agreement or obligation of the Company contained
in the Transaction Documents or any other certificate, instrument or document
contemplated hereby or thereby, or (c) any transaction financed or to be
financed in whole or in part, directly or indirectly, with the proceeds of the
issuance of the Securities. To the extent that the foregoing undertaking by the
Company may be unenforceable for any reason, the Company shall make the maximum
contribution to the payment and satisfaction of each of the Indemnified
Liabilities which is permissible under applicable law.

                                       15
<PAGE>

     9.   ANTI-DILUTION ADJUSTMENTS.
          -------------------------

          a.  Dividend, Subdivision, Combination or Reclassification of Company
              -----------------------------------------------------------------
Common Stock.   If the Corporation shall, at any time or from time to time, (a)
------------
declare a dividend on the Company common stock payable in shares of its capital
stock (including Company common stock) or, (b) subdivide the outstanding Company
common stock or, (c) combine the outstanding Company common stock into a smaller
number of shares, or (d) issue any shares of its capital stock in a
reclassification of the Company common stock (excluding any such
reclassification in connection with a consolidation or merger in which the
Corporation is the continuing corporation), then in each such case, the number
of shares of Company common stock constituting the Common Shares at the time of
the record date for such dividend or of the effective date of such subdivision,
combination or reclassification and the number and kind of Common Shares on such
date shall be  proportionately adjusted by virtue of such dividend, subdivision,
combination or reclassification.  Any such adjustment to the Common Shares shall
become effective immediately after the record date of such dividend or the
effective date of such subdivision, combination or reclassification.  Such
adjustment to the Common Shares shall be made successively whenever any event
listed above shall occur.

          b.  Issuance of Common Stock or Rights to Purchase Company Common
              -------------------------------------------------------------
Stock Below Offering Price. Prior to the earlier of 150 days after the Closing
--------------------------
Date or the effective date of the Registration Statement (as described in the
Registration Rights Agreement) covering the resale of the Common Shares, if the
Company shall, at any time or from time to time, issue Company common stock or
instruments convertible or exercisable into Company common stock (other than an
Exempt Issuance (as defined in Section 4(e) above)) at a price per common stock
share, a  conversion price per common stock share or an exercise price per
common stock share less than $5.45 per common stock share (such lesser price
shall be deemed the "Differential Price"), then the Company shall issue
additional shares of Company common stock to the Buyers equal to the Share
Differential Amount.  The Share Differential Amount shall equal the sum of (i)
the amount determined by dividing the Differential Price into the Buyers'
aggregate Purchase Price, less (ii) the number of Common Shares purchased by the
Buyer at the Closing.  Any such additional shares of common stock after issuance
shall be deemed to be Common Shares for purposes of this Agreement and shall
have the registration rights set forth in the Registration Rights Agreement.

     10.  [Reserved.]

                                       16
<PAGE>

     11.  GOVERNING LAW; MISCELLANEOUS.
          ----------------------------

          a.  Governing Law; Jurisdiction; Jury Trial.  This Agreement shall be
              ---------------------------------------
governed by and construed in all respects by the internal laws of the State of
Illinois (except for the proper application of the United States federal
securities laws), without giving effect to any choice of law or conflict of law
provision or rule (whether of the State of Illinois or any other jurisdictions)
that would cause the application of the laws of any jurisdictions other than the
State of Illinois.  Each party hereby irrevocably submits to the non-exclusive
jurisdiction of the state and federal courts sitting in the City of Chicago.
EACH PARTY HEREBY IRREVOCABLY WAIVES ANY RIGHT IT MAY HAVE, AND AGREES NOT TO
REQUEST, A JURY TRIAL FOR THE ADJUDICATION OF ANY DISPUTE HEREUNDER OR IN
CONNECTION HEREWITH OR ARISING OUT OF THIS AGREEMENT OR ANY TRANSACTION
CONTEMPLATED HEREBY.

          b.  Counterparts.  This Agreement may be executed in two or more
              ------------
identical counterparts, all of which shall be considered one and the same
agreement and shall become effective when counterparts have been signed by each
party and delivered to the other party; provided that a facsimile signature
shall be considered due execution and shall be binding upon the signatory
thereto with the same force and effect as if the signature were an original, not
a facsimile signature.

          c.  Headings.  The headings of this Agreement are for convenience of
              --------
reference and shall not form part of, or affect the interpretation of, this
Agreement.

          d.  Severability.  If any provision of this Agreement shall be
              ------------
invalid or unenforceable in any jurisdiction, such invalidity or
unenforceability shall not affect the validity or enforceability of the
remainder of this Agreement in that jurisdiction or the validity or
enforceability of any provision of this Agreement in any other jurisdiction.

          e.  Entire Agreement; Amendments.  This Agreement supersedes all other
              ----------------------------
prior oral or written agreements between the Buyers, the Company, their
affiliates and persons acting on their behalf with respect to the matters
discussed herein, and this Agreement and the instruments referenced herein
contain the entire understanding of the parties with respect to the matters
covered herein and therein and, except as specifically set forth herein or
therein, neither the Company nor any Buyer makes any representation, warranty,
covenant or undertaking with respect to such matters.  No provision of this
Agreement may be amended other than by an instrument in writing signed by the
Company and the Buyers owning at such time two-thirds of the Common Shares
purchased pursuant to this Agreement, and no provision hereof may be waived
other than by an instrument in writing signed by the party against whom
enforcement is sought.

          f.  Notices.  Any notices, consents, waivers or other communications
              -------
required or permitted to be given under the terms of this Agreement must be in
writing and will be deemed to have been delivered:  (i) upon receipt, when
delivered personally; (ii) upon receipt, when sent by facsimile (provided
confirmation of transmission is mechanically  or electronically generated and

                                       17
<PAGE>

kept on file by the sending party); or (iii) one business day after deposit with
a nationally recognized overnight delivery service, in each case properly
addressed to the party to receive the same.  The addresses and facsimile numbers
for such communications shall be:

     If to the Company:

          Data Race Inc.
          12400 Network Blvd.
          San Antonio, TX 78249-3341
          Telephone: (210) 263-2000
          Facsimile: (210) 558-0356
          Attention: Jim Scogin

     With a copy to:

          Akin, Gump, Strauss, Hauer & Feld, L.L.P.
          300 Convent Street, Suite 1500
          San Antonio, Texas 78205
          Telephone: (210) 281-7000
          Facsimile: (210) 224-2035
          Attention: Pat Ryan, Esq.

     If to the Transfer Agent:

          Chase Mellon Shareholder Services, L.L.P.
          2323 Bryan St., Suite 2300
          Dallas, TX 75201
          Telephone: (214) 965-2236
          Facsimile: (214) 965-2233
          Attention: Mona Vorhees

If to a Buyer, to it at the address and facsimile number set forth on Schedule 1
                                                                      ----------
with copies to such Buyer's representatives as set forth on Schedule 1, or at
                                                            ----------
such other address and/or facsimile number and/or to the attention of such other
person as the recipient party has specified by written notice given to each
other party five days prior to the effectiveness of such change.

          g.   Successors and Assigns.  This Agreement shall be binding upon and
               ----------------------
inure to the benefit of the parties and their respective successors and assigns,
including any purchasers of the Common Shares from Buyers in a transaction not
involving a public offering.  The Company shall not assign this Agreement or any
rights or obligations hereunder without the prior written consent of the Buyers
owning at such time two-thirds of the Common Shares purchased pursuant to this
Agreement.  A Buyer may assign some or all of its rights hereunder without the
consent of the Company, provided, however, that any such assignment shall not
release such Buyer from its

                                       18
<PAGE>

obligations hereunder unless such obligations are assumed by such assignee and
the Company has consented to such assignment and assumption.

          h.   No Third Party Beneficiaries.  This Agreement is intended for the
               ----------------------------
benefit of the parties hereto and their respective permitted successors and
assigns, and is not for the benefit of, nor may any provision hereof be enforced
by, any other person.

          i.   Survival.  Unless this Agreement is terminated under Section
               --------
11(l), the agreements and covenants set forth in Sections 4, 5 and 11, the
indemnification provisions set forth in Section 8, the anti-dilution adjustments
and provisions set forth in Section 9 and the liquidated damage provisions set
forth in Section 10 shall survive the Closing.  Each Buyer shall be responsible
only for its own representations, warranties, agreements and covenants
hereunder.

          j.   [Reserved].

          k.   Further Assurances.  Each party shall do and perform, or cause to
               ------------------
be done and performed, all such further acts and things, and shall execute and
deliver all such other agreements, certificates, instruments and documents, as
the other party may reasonably request in order to carry out the intent and
accomplish the purposes of this Agreement and the consummation of the
transactions contemplated hereby.

          l.   Termination.  In the event that the Closing shall not have
               -----------
occurred with respect to a Buyer on or before three (3) business days from the
date hereof due to the Company's or such Buyer's failure to satisfy the
conditions set forth in Sections 6 and 7 above (and the nonbreaching party's
failure to waive such unsatisfied condition(s)), the nonbreaching party shall
have the option to terminate this Agreement with respect to such breaching party
at the close of business on such date without liability of any party to any
other party; provided, however, that if this Agreement is terminated pursuant to
this Section 11(l), the Company shall remain obligated to reimburse the
nonbreaching Buyers for the expenses described in Section 7(i) above.

          m.   Placement Agent.  The Company acknowledges that it has engaged
               ---------------
PGN Capital Solutions, L.L.C. as placement agent in connection with the sale of
the Common Shares and Warrants, which placement agents may have formally or
informally engaged other agents on their behalf.  The Company shall be
responsible for the payment of any placement agent's fees or broker's
commissions relating to or arising out of the transactions contemplated hereby.
The Company shall pay, and hold each Buyer harmless against, any liability, loss
or expense (including, without limitation, attorneys' fees and out of pocket
expenses) arising in connection with any such claim.

          n.   No Strict Construction.  The language used in this Agreement will
               ----------------------
be deemed to be the language chosen by the parties to express their mutual
intent, and no rules of strict construction will be applied against any party.

          o.   Remedies.  Each Buyer and each holder of the Securities shall
               --------
have all rights and remedies set forth in the Transaction Documents and all
rights and remedies which such holders

                                      19
<PAGE>

have been granted at any time under any other agreement or contract and all of
the rights which such holders have under any law. Any Person having any rights
under any provision of this Agreement shall be entitled to enforce such rights
specifically (without posting a bond or other security), to recover damages by
reason of any breach of any provision of this Agreement and to exercise all
other rights granted by law.

          p.   Payment Set Aside.  To the extent that the Company makes a
               -----------------
payment or payments to the Buyers hereunder or pursuant to the Transaction
Documents or the Buyers enforce or exercise their rights hereunder or
thereunder, and such payment or payments or the proceeds of such enforcement or
exercise or any part thereof are subsequently invalidated, declared to be
fraudulent or preferential, set aside, recovered from, disgorged by or are
required to be refunded, repaid or otherwise restored to the Company, a trustee,
receiver or any other person under any law (including, without limitation, any
bankruptcy law, state or federal law, common law or equitable cause of action),
then to the extent of any such restoration the obligation or part thereof
originally intended to be satisfied shall be revived and continued in full force
and effect as if such payment had not been made or such enforcement or setoff
had not occurred.

                           [Signature Page Follows]

                                       20
<PAGE>

     IN WITNESS WHEREOF, the Buyers and the Company have caused this Securities
Purchase Agreement to be duly executed as of the date first written above.

COMPANY:                                BUYERS:

DATA RACE INC.                          CRANSHIRE CAPITAL, L.P.

                                        By:     Downsview Capital, Incorporated,
                                                the General Partner

By: /s/ James G. Scogin
Name: James G. Scogin                   By: /s/ Mitchell Kopin
Title: SVP - Chief Financial Officer    Name:   Mitchell Kopin
                                        Title:  President

                                        KEYWAY INVESTMENTS, LTD.

                                        By: /s/ Dave Moore
                                        Name:   Dave Moore
                                        Title:  Director

                                        LIONHART INVESTMENTS LTD.

                                        By: /s/ Terrence P. Duffy
                                        Name:   Terrence P. Duffy
                                        Title:  Director

                                        EURAM CAP STRAT. "A" FUND LIMITED

                                        By:     JMJ Capital, Inc., the
                                                Investment Manager

                                        By: /s/ Mitchell P. Kopin
                                        Name:   Mitchell P. Kopin
                                        Title:  President

                          *Signature Page Continues*
<PAGE>

                                        ICN CAPITAL LTD.

                                        By: /s/ Dave Moore
                                        Name:   Dave Moore
                                        Title:  Director

                                        G-BAR LIMITED PARTNERSHIP

                                        By: /s/ Matthew Gray
                                        Name:   Matthew Gray
                                        Title:  Vice President

<PAGE>

                         SCHEDULE 1: LIST OF INVESTORS
                         -----------------------------

<TABLE>
<CAPTION>
------------------------------------------------------------------------------------------------------------------------------------
         Investor               Contact Information       Purchase Price    Number of      Number of        Legal Representative
                                                                          Common Shares  Warrant Shares
------------------------------------------------------------------------------------------------------------------------------------
<S>                         <C>                           <C>             <C>            <C>             <C>
Cranshire Capital, L.P.     c/o JMJ Capital, Inc.           $3,250,000        851,900        255,570     Strategic Investment
                            666 Dundee Rd., Ste. 1901                                                    Counsel, LLC
                            Northbrook, IL 60062                                                         666 Dundee Rd., Ste. 1901
                            Attn: Mitchell P. Kopin                                                      Northbrook, IL 60062
                            (p)847/562-9030                                                              Attn: Anthony J. Ribaudo,
                            (f)847/562-9031                                                              Esq.
                                                                                                         (p)847/564-9293
                                                                                                         (f)847/564-5497
------------------------------------------------------------------------------------------------------------------------------------
Keyway Investments Ltd.     19 Mount Havelock               $1,000,000        262,123         78,637
                            Douglas, Isle of Man
                            United Kingdom
                            1M1 2QG
                            Attn: Martin Peters
                            (p)011-44-171-323-2131
                            (f)011-44-171-323-0773
------------------------------------------------------------------------------------------------------------------------------------
Lionhart Investments Ltd.   19 Camp Rd.                     $  500,000        131,062         39,319
                            Heston Court
                            Wimbeldon, London
                            SW194UW
                            United Kingdom
                            Attn: Terry Duffy
                            (p) 011-44-181-947-6934
                            (f) 011-44-181-971-0212
------------------------------------------------------------------------------------------------------------------------------------
EURAM Cap Strat. "A" Fund   C/o JMJ Capital, Inc.           $1,000,000        262,123         78,637
Limited                     666 Dundee Rd., Ste. 1901
                            Northbrook, IL 60062
                            Attn: Mitchell P. Kopin
                            (p)847/562-9030
                            (f)847/562-9031
------------------------------------------------------------------------------------------------------------------------------------
ICN Capital Ltd.            19 Mount Havelock               $  100,000         26,212          7,864
                            Douglas, Isle of Man
                            United Kingdom
                            1M1 2QG
                            Attn: Ann Nicholson
                            (p)011-44-1624-623911
                            (f)011-44-1624-677313
------------------------------------------------------------------------------------------------------------------------------------
G-Bar Limited Partnership   440 S. LaSalle St., Ste. 650    $  150,000         39,318         11,795
                            Chicago, IL 60605
                            Attn: Av Gray
                            (p)312/362-4211
                            (f)312/362-4208
------------------------------------------------------------------------------------------------------------------------------------
TOTAL                                                       $6,000,000      1,572,738        471,822
------------------------------------------------------------------------------------------------------------------------------------
</TABLE>
<PAGE>

                                 Schedule 3(e)
                                 -------------

     The Company covenants that the Company shall file, within seven business
days after the Closing Date of this Offering, a Form 8-K which describes the
material terms of the Offering and, as exhibits to such 8-K, will include
descriptions and/or copies of the foregoing plans.  The representations and
warranties of the Company made pursuant to the Securities Purchase Agreement
shall be qualified by the disclosure contained in this Schedule 3(e).
<PAGE>

                                   EXHIBITS
                                   --------

Exhibit A      Form of Registration Rights Agreement
Exhibit B      Form of Transfer Agent Instructions
Exhibit C      Form of Company Counsel Opinion
Exhibit D      Form of Warrant

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