Document:

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                        HYDROGEN BURNER TECHNOLOGY, INC.

                            REORGANIZATION AGREEMENT

                  THIS REORGANIZATION AGREEMENT (this "AGREEMENT") is entered
into as of the 7th day of September, 2000, by and among HYDROGEN BURNER
TECHNOLOGY, INC., a California corporation ("HBT"), with an address at 19300
Susana Road, Rancho Dominguez, California 90221, SOFINOV SOCIETE FINANCIERE
D'INNOVATION INC., a Quebec corporation ("SOFINOV"), with an address at 1981,
Avenue McGill College, Montreal, Quebec H3A 3C7, SOFICAL INVESTMENT CORP. I, a
California corporation ("SOFICAL"), with an address c/o Hughes Hubbard & Reed
LLP, 350 South Grand Avenue, 36th Floor, Los Angeles, California 90071-3442,
PHOENIX GAS SYSTEMS LLC, a California limited liability company ("PGS"), with an
address at 3925 Vernon Street, Long Beach, California 90815, PHOENIX HYDROGEN
SYSTEMS LLC, a California limited liability company ("PHS"), with an address at
3925 Vernon Street, Long Beach, California 90815, and the individuals whose
names and addresses are listed on SCHEDULE A attached hereto and incorporated
herein by this reference (the "INDIVIDUALS").

                                    RECITALS

                  WHEREAS, as of the 7th day of August, 1996, HBT and Sofinov
entered into that certain Formation Agreement (the "FORMATION AGREEMENT") and
that certain First Refusal Agreement (the "FIRST REFUSAL AGREEMENT") in order to
provide for the terms and conditions upon which Sofinov made certain investments
in PHS and PGS, certain rights of first refusal granted to Sofinov relating to
HBT and other entities, and the governance of PHS, PGS and HBT;

                  WHEREAS, the parties hereto desire to (i) form a holding
company for the purpose of consolidating the holdings in PHS, PGS and Sofical
(the "REORGANIZATION") and (ii) subsequently merge such holding company with and
into HBT (the "MERGER"), all upon the terms and conditions set forth herein;

                  WHEREAS, on the 10th day of August, 2000, HBT and Sofinov
entered into a letter of intent (the "LOI") which set forth the basic terms and
conditions upon which they agreed to restructure HBT, Sofical, PHS and PGS; and

                  WHEREAS, upon review of the available options, the parties
hereto desire to effect the basic terms and conditions set forth in the LOI and
the Term Sheet attached thereto, as set forth herein.

                  NOW THEREFORE, in consideration of the mutual covenants herein
contained and for other good and valuable consideration, the parties hereto
agree as follows:

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                       ARTICLE I. ISSUANCE OF SECURITIES.

                  1.1      REORGANIZATION.

                  (a)      On or before the Reorganization Closing Date (as
defined in SECTION 1.4 below), each of the parties hereto shall take the
following actions:

                           (i)      HBT shall, as the incorporator, form a new
           California corporation to be named Phoenix Hydrogen Systems, Inc.
           ("NEWCO"), by filing with the California Secretary of State the
           Articles of Incorporation in the form attached hereto as EXHIBIT A.

                           (ii)     HBT shall, as the incorporator, adopt
           by-laws on behalf of Newco substantially incorporating the terms and
           conditions set forth in that certain Operating Agreement of PHS,
           dated as of August 23, 1996 (the "PHS OPERATING AGREEMENT"), in
           the form attached hereto as EXHIBIT B.

                           (iii)    HBT shall, as the incorporator, appoint the
           following persons as the directors and officers of Newco and shall
           resign as the incorporator:

                                    The following persons shall be appointed by
           the incorporator as the initial directors of Newco:

                                    David Moard;
                                    Roger Saillant;
                                    Jean-Luis Exbrayat;
                                    Dr. James N. Goffi;
                                    Dr. Larry L. Berg;
                                    Ivan Roch;
                                    Henry Wedaa;
                                    Fred R. Seddiqui;
                                    David Freeman.

The following persons shall be appointed by the incorporator as the officers of
Newco:

                                    David Moard     -   President
                                    Michael Burke   -   Chief Financial Officer
                                    Larry Frost     -   Secretary

                           (iv)     Upon completion of the foregoing actions in
           CLAUSES (I) THROUGH (III) above, the following parties shall take
           the following actions:

                                    (A)      Each of PGS, PHS, Sofical and
Newco, and each entity's respective members or shareholders shall approve,
execute and deliver to HBT for filing, the Agreement of Reorganization to effect
the Reorganization (as defined below), in the form attached hereto as EXHIBIT C
(the "AGREEMENT OF REORGANIZATION") and the Certificates of

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Approval of the Agreement of Reorganization, substantially in the form of
EXHIBIT D attached hereto (the "APPROVAL CERTIFICATES"); and

                                    (B)      On the Reorganization Closing Date,
PGS, PHS and Sofical shall be merged with and into Newco (the "REORGANIZATION"),
in which Newco shall be the surviving corporation in the Reorganization, upon
the filing of the Agreement of Reorganization and the Approval Certificates with
the California Secretary of State by HBT.

                  (b)      Subject to the terms and conditions and in reliance
upon the representations, warranties, covenants and agreements contained herein,
each of PHS, PGS and Sofical will merge with and into Newco at the
Reorganization Effective Time (as defined in this CLAUSE (b)). The terms and
conditions of the Reorganization and the mode of carrying the same into effect
will be as set forth in this Agreement and the applicable provisions of the
California General Corporation Law (the "CGCL"). As a result of the
Reorganization, the separate existence of each of PHS, PGS and Sofical will
cease and Newco will continue as the surviving corporation and shall succeed to
and assume all of the rights and obligations of each of PHS, PGS and Sofical in
accordance with the CGCL. The Reorganization shall have the effect set forth in
the CGCL. The Reorganization shall become effective at the time at which the
Agreement of Reorganization has been duly filed with the California Secretary of
State (for purposes of this SECTION 1.1 the time the Reorganization becomes
effective in accordance with the foregoing being referred to as the
"REORGANIZATION EFFECTIVE TIME").

                  (c)      At the Reorganization Effective Time, by virtue of
the Reorganization and without any action on the part of the holders of any of
the following securities:

                           (i)      All shares of capital stock of Sofical
         issued and outstanding immediately prior to the Reorganization
         Effective Time will be automatically converted into the right to
         receive the number of shares of Newco Common Stock set forth in
         Footnote 2 to SCHEDULE 1.1 hereto;

                           (ii)     All membership interests in PGS outstanding
         immediately prior to the Reorganization Effective Time and held by the
         Individuals, HBT and Sofical will be automatically converted into the
         right to receive the number of shares of Newco Common Stock referenced
         on SCHEDULE 1.1 hereto;

                           (iii)    All membership interests in PHS outstanding
         immediately prior to the Reorganization Effective Time and held by HBT
         and Sofinov will be automatically converted into the right to receive
         the number of shares of Newco Common Stock referenced on SCHEDULE 1.1
         hereto.

                           (iv)     All shares of capital stock of Sofical and
         all membership interests in PGS and PHS will, upon conversion thereof
         into shares of Newco Common Stock at the Reorganization Effective Time,
         cease to be outstanding and will automatically be canceled and retired,
         and each certificate previously evidencing any such capital stock or
         membership interest outstanding immediately prior to the Reorganization
         Effective Time will thereafter represent only the right to receive the
         shares of Newco Common Stock into

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         which such shares of Sofical capital stock or membership interests of
         PGS and PHS represented by such certificate have been converted
         pursuant to this Section. The holders of certificates previously
         evidencing Sofical capital stock or membership interests of PGS and PHS
         will cease to have any rights with respect to such stock or interests
         except as otherwise provided herein or by the CGCL.

                           (v)      On the day of the Reorganization Effective
         Time, Newco will issue and provide for delivery to the former holders
         of Sofical capital stock or membership interests of PGS and PHS
         certificates representing shares of Newco Common Stock issuable
         pursuant to this Section.

                  1.2      IPO.

                  (a)      In the event that HBT notifies each of the parties
hereto, upon not less than 3 days' prior written or facsimile notice (the "IPO
NOTICE"), that HBT intends to consummate an initial public offering of its
common stock on or before December 31, 2000, which has received the unanimous
approval of the IPO Pricing Committee of HBT's Board of Directors (the "IPO"),
the parties hereby agree to take such actions as may be reasonable and necessary
to effect a merger of Newco with and into HBT on the terms and subject to the
conditions set forth herein (the "MERGER").

                  (b)      Upon the receipt of the IPO Notice, each of the
parties hereby agrees to take, and shall take, the following actions:

                           (i)      Each of the parties hereto, as the
         shareholders of Newco, shall, if and to the extent deemed necessary,
         approve the Merger and the Agreement of Merger in the form of EXHIBIT E
         attached hereto (the "AGREEMENT OF MERGER");

                           (ii)     HBT shall approve the Merger and the
         Agreement of Merger and shall have obtained, prior to the IPO Notice,
         the approval of the Merger by HBT's shareholders;

                           (iii)    The appropriate officers of Newco and HBT
         shall execute and deliver and cause to be filed with the California
         Secretary of State, the Agreement of Merger and such certificates of
         approval and other documents, in such form as required by, and executed
         in accordance with the relevant provisions of, the CGCL, to effect the
         Merger;

                           (iv)     On the Merger Closing Date, Newco and HBT
         shall effect the Merger by filing the Agreement of Merger with the
         California Secretary of State pursuant to which Newco shall be merged
         with and into HBT and HBT shall be the surviving corporation in the
         Merger.

                  (c)      Subject to the terms and conditions and in reliance
upon the representations, warranties, covenants and agreements contained herein,
Newco will merge with and into HBT at the Effective Time (as defined in this
CLAUSE (c)). The terms and conditions of

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the Merger and the mode of carrying the same into effect will be as set forth in
this Agreement and the applicable provisions of the CGCL. As a result of the
Merger, the separate existence of Newco will cease and HBT will continue as the
surviving corporation and shall succeed to and assume all of the rights and
obligations of Newco in accordance with the CGCL. The Merger shall have the
effect set forth in the CGCL. The Merger shall become effective at the time at
which the Agreement of Merger has been duly filed with the California Secretary
of State (for purposes of this SECTION 1.2, the time the Merger becomes
effective in accordance with the foregoing being referred to as the "EFFECTIVE
TIME"). The parties hereto agree that the Agreement of Merger shall be filed and
the Effective Date of the Merger shall be the business day before the scheduled
closing of the IPO as determined by written or facsimile notice from the
managing underwriter of the IPO to HBT.

                  (d)      At the Effective Time, by virtue of the Merger and
without any action on the part of the holders of any of the following
securities:

                           (i)      Each share of Newco Common Stock issued and
         outstanding immediately prior to the Effective Time (other than shares
         of Newco Common Stock held by HBT) will be automatically converted into
         the right to receive one share of HBT Common Stock;

                           (ii)     Each share of Newco Common Stock held by HBT
         immediately prior the Effective Time will be canceled;

                           (iii)    All shares of Newco Common Stock will, upon
         conversion thereof into shares of HBT Common Stock at the Effective
         Time, cease to be outstanding and will automatically be canceled and
         retired, and each certificate previously evidencing any such Newco
         Common Stock immediately prior to the Effective Time (other than Newco
         Common Stock held by HBT) will thereafter represent only the right to
         receive the shares of HBT Common Stock into which such shares of Newco
         Common Stock represented by such certificate have been converted
         pursuant to this Section. The holders of certificates previously
         evidencing Newco Common Stock will cease to have any rights with
         respect to such stock or interests except as otherwise provided herein
         or by the CGCL.

                           (iv)     On the day of the Effective Time, HBT will
         issue and provide for delivery to the former holders of Newco Common
         Stock certificates representing shares of HBT Common Stock issuable
         pursuant to this Section in the amounts set forth on SCHEDULE 1.2
         attached hereto.

                  (e)      Upon receipt of the IPO Notice and simultaneous with
the Merger, Sofinov shall purchase and HBT shall sell to Sofinov 2,178,000
additional shares of HBT Common Stock at a price of $5.00 per share, for a total
purchase price of $10,890,000.

                  (f)      Sofinov hereby approves the IPO, PROVIDED that (i) it
shall be consummated on or before the 31st day of December, 2000 (after which
date any initial public offering of the securities of HBT shall require the
approval of Sofinov), (ii) a director of HBT designated by Sofinov shall be a
member of the IPO Pricing Committee of HBT appointed in

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connection with the IPO, and (iii) approval of the pricing of the IPO shall
require the unanimous vote of all members of the IPO Pricing Committee.

                  1.3      ALTERNATIVE MERGER.

                  (a)      In the event that HBT does not deliver the IPO Notice
and consummate an IPO by the 31st day of December, 2000, the parties hereby
agree to take such actions as may be reasonable and necessary to effect an
Alternative Merger of Newco with and into HBT on the following terms and
conditions (the "ALTERNATIVE MERGER"):

                           (i)      Within five business days following December
         31, 2000, the Board of Directors of HBT shall approve and cause the
         appropriate officers of HBT to amend HBT's Articles of Incorporation to
         authorize or designate shares of a class of Preferred Stock with the
         rights, preferences and privileges substantially in the form of EXHIBIT
         F attached hereto;

                           (ii)     Each of the parties hereto, as the
         shareholders of Newco, shall, if and to the extent deemed necessary,
         approve the Alternative Merger and the alternative Agreement of Merger
         in the form of EXHIBIT G attached hereto (the "ALTERNATIVE AGREEMENT OF
         MERGER");

                           (iii)    HBT shall approve the Alternative Merger and
         the Alternative Agreement of Merger and shall have obtained, prior to
         the action described in (i) above, the approval of the Alternative
         Merger and the amendment to the HBT's Articles of Incorporation
         described in (i) above by HBT's shareholders.

                           (iv)     The appropriate officers of Newco and HBT
         shall execute and deliver and cause to be filed with the California
         Secretary of State, the Alternative Agreement of Merger and such
         certificates of approval and other documents, in such form as required
         by, and executed in accordance with the relevant provisions of, the
         CGCL, to effect the Alternative Merger;

                           (v)      Within 15 business days of December 31,
         2000, Newco and HBT shall effect the Alternative Merger by filing the
         Alternative Agreement of Merger with the California Secretary of State
         pursuant to which Newco shall be merged with and into HBT and HBT shall
         be the surviving corporation in the Alternative Merger.

                  (b)      Subject to the terms and conditions and in reliance
upon the representations, warranties, covenants and agreements contained herein,
Newco will merge with and into HBT at the Alternative Effective Time (as defined
in this CLAUSE (b)). The terms and conditions of the Alternative Merger and the
mode of carrying the same into effect will be as set forth in this Agreement and
the applicable provisions of the CGCL. As a result of the Alternative Merger,
the separate existence of Newco will cease and HBT will continue as the
surviving corporation and shall succeed to and assume all of the rights and
obligations of Newco in accordance with the CGCL. The Alternative Merger shall
have the effect set forth in the CGCL. The Alternative Merger shall become
effective at the time at which the Alternative

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Agreement of Merger has been duly filed with the California Secretary of State
(for purposes of this SECTION 1.3, the time the Alternative Merger becomes
effective in accordance with the foregoing being referred to as the "ALTERNATIVE
EFFECTIVE TIME").

                  (c)      At the Alternative Effective Time, by virtue of the
Alternative Merger and without any action on the part of the holders of any of
the following securities:

                           (i)      All shares of Newco Common Stock issued and
         outstanding immediately prior to the Alternative Effective Time (other
         than shares of Newco Common Stock held by HBT) held by Sofinov or its
         assigns will be automatically converted into the right to receive one
         share of HBT Preferred Stock and each share of Newco Common Stock
         issued and outstanding and held by the Individuals will be
         automatically converted into the right to receive one share of HBT
         Common Stock, as set forth on SCHEDULE 1.3 hereto;

                           (ii)     Each share of Newco Common Stock held by HBT
         immediately prior the Alternative Effective Time will be canceled;

                           (iii)    All shares of Newco Common Stock will, upon
         conversion thereof into shares of HBT Common Stock and HBT Preferred
         Stock at the Alternative Effective Time, cease to be outstanding and
         will automatically be canceled and retired, and each certificate
         previously evidencing any such Newco Common Stock and HBT Preferred
         Stock immediately prior to the Alternative Effective Time (other than
         Newco Common Stock held by HBT) will thereafter represent only the
         right to receive the shares of HBT Common Stock and HBT Preferred
         Stock, as the case may be, into which such shares of Newco Common Stock
         represented by such certificate have been converted pursuant to this
         Section. The holders of certificates previously evidencing Newco Common
         Stock will cease to have any rights with respect to such stock or
         interests except as otherwise provided herein or by the CGCL.

                           (iv)     On the day of the Alternative Effective
         Time, HBT will issue and provide for delivery to the former holders of
         Newco Common Stock certificates representing shares of HBT Common Stock
         and HBT Preferred Stock issuable pursuant to this Section.

                  (d)      Upon consummation of the Alternative Merger, Sofinov
shall have the option granted pursuant to SECTION 1.8(e) hereof to purchase
2,178,000 additional shares of Preferred Stock at a price per share of $5.00,
such option to be exercised on or before August 15, 2001.

                  1.4      CLOSING.

                  (a)      Subject to the terms and conditions set forth in this
Agreement, the closing (the "REORGANIZATION CLOSING") of the Reorganization
shall be held on the 29th day of September, 2000, or on such later date as
Sofinov and HBT may agree to (the "REORGANIZATION CLOSING DATE"), at the offices
of Hughes Hubbard & Reed LLP, 350 South Grand Avenue, 36th

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Floor, Los Angeles, California 90071.

                  (b)      Subject to the terms and conditions set forth in this
Agreement, the closing (the "MERGER CLOSING") of the Merger or the Alternative
Merger, as the case may be, shall be held as provided herein, or such other
closing date as Sofinov and HBT may agree to (the "MERGER CLOSING DATE"), at the
offices of Hughes Hubbard & Reed LLP, 350 South Grand Avenue, 36th Floor, Los
Angeles, California 90071.

                  1.5      PRE-MERGER PRE-IPO RIGHTS OF SOFINOV. Until the
Effective Time of the Merger or the Alternative Effective Time of the
Alternative Merger, as the case may be, the parties hereto hereby make the
following covenants and grant the following rights and preferences to and for
the benefit of Sofinov:

                  (a)      SALE OR ISSUANCE OF SHARES. Neither Newco nor HBT
shall, after the date hereof, issue or sell any shares of their capital stock or
any options, warrants or other rights to purchase any of their capital stock, or
any other security convertible into capital stock, except as follows:

                           (i)      the issuance of Newco Common Stock as
         provided herein with respect to the Reorganization;

                           (ii)     the grant of options or the issuance of HBT
         Common Stock with respect to the exercise or conversion of outstanding
         employee stock options, pursuant to employment agreements, the 2000
         Equity Incentive Plan or outstanding warrants;

                           (iii)    the issuance of up to 10,691,350 shares of
         HBT Common Stock to Visteon Corporation ("VISTEON") pursuant to the
         terms of the Letter of Intent between HBT and Visteon, dated as of June
         20, 2000;

                           (iv)     the issuance, as provided herein, of HBT
         Common Stock in the Merger or HBT Common Stock and Preferred Stock in
         the Alternative Merger, as the case may be;

                           (v)      the sale of 2,178,000 shares of HBT Common
         Stock or HBT Preferred Stock, as the case may be, to Sofinov as
         provided in this Agreement; and

                           (vi)     the issuance of HBT Common Stock pursuant to
         the IPO.

                  (b)      ACTION BY NEWCO AND HBT. Neither Newco nor HBT shall,
after the date hereof, take the following actions without the prior written
approval of Sofinov:

                           (i)      Amend the Articles of Incorporation or
         Bylaws of either Newco or HBT in any manner that would alter or change
         Sofinov's rights or the rights of the directors designated by Sofinov
         as set forth in SECTION 1.5(c) below, except that the Articles of
         Incorporation and Bylaws of HBT shall be amended and restated, upon the

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         approval by HBT's shareholders, to carry out the resolutions adopted by
         HBT's board of directors on August 25, 2000 and as summarized in the
         September 2, 2000 draft of the HBT Form S-1, delivered to Sofinov;

                           (ii)     Reclassify any outstanding shares into
         shares having rights senior to or on parity with the shares of stock
         owned by Sofinov; or

                           (iii)    Liquidate or dissolve either Newco (except
         as provided herein with respect to the Merger or Alternative Merger) or
         HBT.

                  (c)      BOARD OF DIRECTORS. Each of Newco and HBT will have a
board of directors (the "Board") consisting of nine (9) members. As to both
companies, Sofinov shall have the right to designate two (2) Board members, who
shall initially be Ivan Roch and Fred R. Seddiqui. All decisions by the Board of
Newco and HBT shall require a majority vote of the members of the Board, except
that neither Newco nor HBT will, without the approval by vote or written consent
of 66 2/3% of the members of the Board of the applicable company:

                           (i)      Merge or consolidate with or into any
         business entity (except with respect to the Reorganization, the Merger
         or the Alternative Merger as provided in this Agreement);

                           (ii)     Acquire or dispose of a majority interest in
         any other business entity (except the acquisition by HBT of a majority
         interest in SAJIM, a French company for approximately $250,000 in
         value);

                           (iii)    Make any changes in the fundamental nature
         of such company, or the business carried out by it;

                           (iv)     Except with respect to the Reorganization,
         the Merger or the Alternative Merger as provided in this Agreement,
         sell, transfer, pledge or exclusively license (or agree to do any of
         the foregoing) (y) any patent or related intellectual property rights
         relating to the fuel cell technology or that is inconsistent with the
         annual business plan of such company or (z) all or substantially all of
         the assets of such company, whether in a single transaction or a series
         of related transactions;

                           (v)      Adopt the annual business plan for such
         company;

                           (vi)     Enter into any agreement between such
         company, and any party affiliated with such company (director, officer,
         management level employee or shareholder other than Sofinov, Gaz de
         France or GDF International, or Visteon) other than in connection with
         employment matters;

                           (vii)    Enter into any agreement between such
         company, and any third party for the purpose of forming a strategic
         alliance or a joint venture of any kind except marketing (agent and
         distributor agreements) and any agreements that do not involve

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         technology transfer (except pursuant to the terms of the June 20, 2000
         Letter of Intent with Visteon Corporation).

                           (viii)   Adopt the annual operating and capital
         expenditure budget of such company; or

                           (ix)     Acquire or dispose of a minority interest in
         any other business entity (except in connection with the
         Reorganization, the Merger or the Alternative Merger, as provided
         herein).

                  (d)      INVESTOR RIGHTS. Each of Newco and HBT shall provide
Sofinov with each of the following:

                           (i)      FINANCIAL INFORMATION AND INSPECTION RIGHTS.
         Sofinov will receive the same financial information about Newco or HBT,
         as the case may be, as was provided in SECTION 8.8 of the Formation
         Agreement with respect to PHS and PGS.

                           (ii)     RIGHT OF FIRST REFUSAL. Sofinov will have a
         pro rata right, based on percentage interest of common stock of the
         applicable company (on an as-converted, fully-diluted basis), to
         participate in subsequent financings of Newco or HBT, as the case may
         be, excluding however the issuance and sales of Newco Common Stock and
         HBT Common Stock or Preferred Stock as described in SECTION 1.5(a)
         above.

                           (iii)    CO-SALE RIGHTS. Each of the parties hereto
         will have the right to participate on a pro rata basis in any transfers
         of stock by any other party hereto, except transfers of stock described
         in SECTION 1.5(a) above.

                           (iv)     NEW OPERATING COMPANIES. The formation of
         any new operating companies by Newco or HBT to exploit the Licensed UOB
         Patents and UOB Technology shall be governed by the provisions of
         ARTICLE VIII of the Formation Agreement.

                           (v)      PUBLIC STOCK OFFERING RIGHTS.

                                             (A)      Between January 1, 2001
and August 23, 2006, the timing, terms and pricing of any initial public
offering of common stock (a "PUBLIC STOCK OFFERING") for interests in HBT (or
any successor entity) and any new operating company of HBT shall be subject to
the consent of Sofinov, which consent shall not be unreasonably withheld. HBT
shall use its best efforts to accommodate Sofinov's structuring needs and
preferences.

                                             (B)      HBT acknowledges that it
has been advised that (x) Sofinov intends to ultimately dispose of any interest
it holds in HBT and any other interest it may acquire in any new operating
company of HBT, such disposal to be effectuated by means of a sale of stock in
HBT or such new operating company, as the case may be, (y) Sofinov will make its
investments in any such new operating company through one or more entities
controlled by Sofinov and (z) each such separate entity may be merged or
otherwise consolidated with such

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new operating company concurrently with or following the incorporation of such
operating company in anticipation of an Public Stock Offering or otherwise. Each
party shall use its best efforts to accommodate the others' structuring needs
and preferences.

                  1.6      POST-MERGER POST-IPO RIGHTS OF SOFINOV. In the event
the Merger is consummated, HBT hereby makes the following covenants and grants
the following rights and preferences to and for the benefit of Sofinov:

                  (a)      BOARD OF DIRECTORS. So long as Sofinov shall own any
unregistered securities in HBT, Sofinov shall have the right to nominate no less
than one (1) nominee on the HBT Board so long as it has an interest in HBT of 5%
or more of its outstanding securities on a fully diluted basis.

                  (b)      INVESTOR RIGHTS. HBT shall enter into an Investor
Rights Agreement with Sofinov in the form attached hereto as EXHIBIT H.

                  1.7      PRE-ALTERNATIVE MERGER RIGHTS OF SOFINOV. In the
event HBT does not consummate the IPO prior to December 31, 2000, from January
1, 2001 until the consummation of the Alternative Merger, the parties hereto
agree and covenant for the benefit of Sofinov to take, or cause to be taken, the
following actions by HBT:

                  (a)      All of the actions set forth in SECTION 1.3(b) hereof
to the extent necessary to effect the substance of the Alternative Merger;

                  (b)      HBT shall not take any of the actions that would have
been prohibited prior to the Merger under SECTIONS 1.5(a) AND (b) hereof;

                  (c)      HBT grants to Sofinov the rights and preferences set
forth in SECTIONS 1.5(c) AND (d) hereof.

                  1.8      POST-ALTERNATIVE MERGER RIGHTS OF SOFINOV. In the
event HBT does not consummate the IPO prior to December 31, 2000, subsequent to
the consummation of the Alternative Merger, HBT and Sofinov agree as follows:

                  (a)      PUBLIC OFFERING RIGHTS. Between January 1, 2001 and
August 23, 2006, the timing, terms and pricing of any Public Stock Offering of
any securities of HBT (or any successor entity) and any new operating company
shall be subject to the consent of Sofinov, which consent shall not be
unreasonably withheld. HBT shall use its best efforts to accommodate Sofinov's
structuring needs and preferences.

                  (b)      HBT acknowledges that it has been advised that (x)
Sofinov intends to ultimately dispose of any interest it holds in HBT and any
other interest it may acquire in any new operating company of HBT, such disposal
to be effectuated by means of a sale of stock in HBT or such new operating
company, as the case may be, (y) Sofinov will make its investments in any such
new operating company through one or more entities controlled by Sofinov and (z)
each such separate entity may be merged or otherwise consolidated with such new
operating

                                      -11-

<PAGE>

company concurrently with or following the incorporation of such operating
company in anticipation of an Public Stock Offering or otherwise. Each party
shall use its best efforts to accommodate the others' structuring needs and
preferences.

                  (c)      INDEMNIFICATION RIGHTS. HBT shall grant to Sofinov
indemnification rights substantially on the same terms and conditions as are
contained in the PHS Operating Agreement.

                  (d)      PUT OPTION. HBT shall provide to Sofinov upon
written notice to HBT the option (a "PUT OPTION") that will become effective
on or after August 23, 2002. Upon the exercise by Sofinov of its Put Option,
HBT shall be required to repurchase (subject to the provisions of CLAUSE (9)
below) all shares then held by Sofinov (the "SECURITIES") at their then fair
market value.

                           (1)      The Put Option shall terminate upon the
         occurrence of a Public Stock Offering by HBT of its Common Stock.

                           (2)      For a period of no less than thirty (30)
         days after Sofinov gives the written notice of exercise (the "NOTICE"),
         Sofinov and HBT shall attempt to agree upon a price for the Securities.
         If they are unable to agree, then, on any date which is more than
         thirty (30) days after the Notice, Sofinov may notify HBT (the
         "APPRAISAL NOTICE") that it intends to determine the fair market value
         of the applicable Securities through an appraisal mechanism. The
         Appraisal Notice shall be accompanied by the name of the Appraiser
         ("SOFINOV'S APPRAISER") selected by Sofinov to appraise the applicable
         Securities. Within thirty (30) days after the Appraisal Notice, HBT
         shall notify (the "COUNTER-APPRAISAL NOTICE") Sofinov's Appraiser of
         the name of the appraiser selected (the "HBT APPRAISER") to appraise
         the applicable Securities. During the ninety (90) day period following
         the date of the Counter Appraisal Notice the two appraisers (the
         "APPRAISERS") shall separately determine the fair market value of the
         applicable Securities. HBT shall provide the Appraisers with an
         in-house financial statement as close as possible to the "EXERCISE
         DATE." The ninety (90) day period shall be extended by the time it
         takes to provide the in-house financial statement, which shall include
         at a minimum a Profit and Loss statement and a Balance Sheet.

                           (3)      If HBT fails or refuses to select an
         appraiser within the thirty (30) day period, then the value of the
         applicable Securities as determined by Sofinov's Appraiser shall be
         deemed to be its fair market value.

                           (4)      If the fair market value of the applicable
         Securities, as determined by one of the Appraisers, is within ten
         percent (10%) of the value as determined by the second Appraiser, then
         the fair market value shall be deemed to be the average of the two
         appraisals. If the difference in the valuations of the two Appraisers
         is more than ten percent (10%), then the two Appraisers shall select a
         third appraiser (the "THIRD APPRAISER") who shall, within ninety (90)
         days after his appointment, determine the fair market value of the
         applicable Securities, which may not, in any event, be lower than the

                                      -12-

<PAGE>

         lowest nor higher than the highest of the values as determined by
         Sofinov's Appraiser and HBT's Appraiser.

                           (5)      Each appraiser selected must be experienced
         in appraising businesses of the type HBT is engaged in.

                           (6)      The fair market value of the applicable
         Securities shall be determined without reference to a minority discount
         or a control premium.

                           (7)      Sofinov shall pay the fees for Sofinov's
         Appraiser; HBT shall pay the fees for the HBT's Appraiser; and Sofinov
         and HBT shall each pay one half (1/2) of the fees for the Third
         Appraiser.

                           (8)      Subject to the provisions of CLAUSE (9)
         below, within one hundred twenty (120) days after determination of the
         fair market value of the applicable Securities (a) Sofinov shall
         transfer the applicable Securities to HBT and (b) HBT will pay Sofinov,
         in cash, the fair market value for the applicable Securities. The
         transfer by Sofinov shall be without any representations or warranties
         except that Sofinov (1) owns the applicable Securities free and clear
         of any liens or encumbrances and (2) is lawfully empowered to transfer
         the applicable Securities to HBT.

                           (9)      In the event of failure of HBT to purchase
         the applicable Securities as described in this CLAUSE (9), HBT and
         Sofinov shall work together, in good faith, to sell HBT. If HBT fails
         to actively and aggressively market its sale in good faith (with the
         active assistance of Sofinov), and/or if the joint efforts of HBT and
         Sofinov do not result in the sale of HBT at the best available price
         for a period of one year following the 120 days referred to in CLAUSE
         (8), then Sofinov shall have the right to (a) elect a committee of the
         Board of Directors that will be fully authorized to bind the Board of
         Directors to pursue a sale of HBT and (b) approve a sale of HBT at a
         price and on terms that are reasonably acceptable to Sofinov. The
         proceeds of the sale of the HBT pursuant to this CLAUSE (9) shall be
         allocated among the shareholders in accordance with their respective
         equity interests. Alternatively, Sofinov may offer to purchase, for
         cash, all the shares of Common Stock in HBT held by other shareholders
         at the then current fair market value, determined in accordance with
         the appraisal procedures described in this Section. Sofinov shall give
         the shareholders written notice of its offer to purchase, which offer
         the shareholders shall accept, and the closing of the sale shall be
         consummated within thirty (30) days of the delivery to the shareholders
         of Sofinov's offer to purchase.

                  (e)      OPTION GRANT. HBT hereby grants an option to Sofinov,
in further consideration of its covenants, to purchase 2,178,000 shares of
Preferred Stock, at a purchase price of $5.00 per share (for a total purchase
price of $10,890,000), such option to be exercised on or before August 15, 2001.
If prior to the expiration of such option HBT completes a Public Stock Offering,
provided that such a Public Stock Offering shall have a minimum offering of no
less than $50,000,000 (which condition may be waived by Sofinov in its sole
discretion), immediately prior to such a Public Stock Offering becoming
effective Sofinov shall be obligated to purchase, and HBT shall sell, such
2,178,000 shares of Preferred Stock (or, at Sofinov's

                                      -13-

<PAGE>

option, Common Stock) at a purchase price of $5.00 per share.

                  (f)      INVESTOR RIGHTS. Until a Public Stock Offering, HBT
grants to Sofinov the rights and preferences set forth in SECTION 1.5(d) hereof.

                  (g)      BOARD OF DIRECTORS. Until a Public Stock Offering,
HBT grants to Sofinov the rights and preferences set forth in SECTION 1.5(c)
hereof.

                   ARTICLE II. REPRESENTATIONS AND WARRANTIES.

                  HBT hereby represents and warrants, with respect to itself and
each of PGS and PHS (unless the context clearly requires otherwise, for purposes
of this ARTICLE II only, any reference to "HBT" shall be deemed a reference to
"EACH OF HBT, PGS AND PHS, JOINTLY AND SEVERALLY"), to the other parties hereto,
subject to the exceptions set forth in their respective Disclosure Schedules, as
follows. For purposes of this ARTICLE II, an effect or event will be deemed
"material" to the extent that, with respect to HBT, such effect or event results
in a loss, liability or transfer in excess of $100,000.

                  2.1      ORGANIZATION AND QUALIFICATION; SUBSIDIARIES. HBT is
duly organized, validly existing and in good standing under the laws of its
jurisdiction of incorporation or organization, has all requisite power and
authority to own, lease and operate its properties and to carry on its business
as it is now being conducted and is duly qualified and in good standing to do
business in each jurisdiction in which the nature of the business conducted by
it or the ownership or leasing of its properties makes such qualification
necessary, except where its failure to so qualify would not have a material
adverse effect on HBT. HBT's Disclosure Schedule sets forth, as of the date of
this Agreement, a true and complete list of all HBT's directly or indirectly
owned subsidiaries, or any equity interest owned by HBT, directly or indirectly,
in any limited liability company, partnership or joint venture arrangement or
other business entity, together with the jurisdiction of incorporation or
organization of each such subsidiary or entity and the percentage of capital
stock or other equity, profit or participation interests owned by HBT, directly
or indirectly, in any such entities.

                  2.2      ARTICLES OF INCORPORATION; BYLAWS. HBT has furnished
to the other parties complete and correct copies of the articles of
incorporation and the bylaws or the equivalent organizational documents, in each
case as amended or restated to the date hereof, of HBT and each of its
subsidiaries or affiliates. Neither HBT nor any of its subsidiaries or
affiliates is in violation of any of the provisions of their certificate of
incorporation or bylaws or equivalent organizational documents.

                  2.3      CAPITALIZATION.

                  (a)      The authorized capital stock of HBT consists of
30,000,000 shares of Common Stock of which, as of the date hereof, 12,377,352
shares were issued and outstanding (other than treasury stock), all of which are
duly authorized, validly issued, fully paid and nonassessable and were not
issued in violation of any preemptive or similar rights of any person. SECTION
2.3(a) of HBT's Disclosure Schedule hereto lists the name and number of shares
held by

                                      -14-

<PAGE>

each recordholder of all of the issued and outstanding shares of the
HBT's Common Stock and all holders of options to purchase Common Stock of HBT as
of the date hereof.

                  (b)      The minute books of HBT provided to the other parties
contain a complete summary of all meetings of directors and stockholders since
the time of incorporation and reflect all transactions referred to in such
minutes accurately in all material respects.

                  (c)      The Common Stock and Preferred Stock, in each case,
when, and if, issued, sold and delivered in accordance with the terms of this
Agreement, will be duly and validly issued, fully paid, and nonassessable, and
will be free of restrictions on transfer other than restrictions on transfer
under this Agreement and the Investor Rights Agreement as set forth in EXHIBIT H
and under applicable state and federal securities laws. The shares of common
stock, into which the Preferred Stock may be converted (the "CONVERSION
SHARES"), shall be duly and validly reserved for issuance and, upon issuance in
accordance with the terms of the Restated Articles, as set forth in EXHIBIT F,
will be duly and validly issued, fully paid, and nonassessable and will be free
of restrictions on transfer other than restrictions on transfer under this
Agreement and the Investor Rights Agreement and under applicable state and
federal securities laws.

                  (d)      Except for (i) the conversion privileges of the
Preferred Stock which may be issued under this Agreement (ii) the options,
warrants and rights to purchase or acquire HBT's common stock described in
SECTION 1.5(a) hereof, and (iii) currently outstanding options to purchase
shares of Common Stock granted to employees and other service providers and
pursuant to HBT's 2000 Equity Incentive Plan (collectively, the "OPTION PLANS")
as set forth on SCHEDULE 2.3(d) attached hereto, there are not outstanding any
options, warrants, rights (including conversion or preemptive rights) or
agreements for the purchase or acquisition from HBT of any shares of its capital
stock. In addition to the aforementioned options, HBT has reserved or will
reserve an additional approximately 4,200,000 shares of its Common Stock for
purchase upon exercise of options to be granted in the future under the Option
Plans. Other than as set forth herein, HBT is not a party or subject to any
agreement or understanding, and, to the best of HBT's knowledge, there is no
agreement or understanding between any persons and/or entities, which affects or
relates to the voting or giving of written consents with respect to any security
or by a director of HBT. HBT is not a party or subject to any agreement or
understanding that provides for the acceleration of vesting on any shares of its
capital stock.

                  2.4      REGISTRATION RIGHTS. Except as provided in this
Agreement and the Investor Rights Agreement, HBT has not granted or agreed to
grant any registration rights, including piggyback rights, to any person or
entity, except with respect to the Formation Agreement.

                  2.5      AUTHORIZATION OF AGREEMENT. HBT has all requisite
corporate power and authority to execute and deliver this Agreement and each
instrument required hereby to be executed and delivered by it at any closing
hereunder, to perform its obligations hereunder and to consummate the
transactions contemplated hereby. The execution and delivery by HBT of this
Agreement and each instrument required hereby to be executed and delivered by it
at any closing

                                      -15-

<PAGE>

hereunder and the performance of its obligations hereunder have been duly and
validly authorized by all requisite corporate action on the part of HBT other
than, with respect to the Merger, the approval and adoption of this Agreement by
the shareholders of HBT, which approval and adoption in accordance with the CGCL
and HBT's articles of incorporation shall require the affirmative vote of the
holders of at least a majority of the outstanding shares of HBT's Common Stock.
This Agreement has been duly executed and delivered by HBT and, assuming due
authorization, execution and delivery hereof by the other parties, this
Agreement constitutes the valid and binding obligation of HBT, enforceable
against HBT in accordance with its terms, subject to bankruptcy, insolvency,
reorganization, moratorium or similar laws now or hereafter in effect relating
to creditors' rights generally or to general principles of equity.

                  2.6      APPROVALS. Except for the applicable requirements, if
any, of (a) the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended
(the "HSR ACT"), (b) the filing and recordation of appropriate merger documents
as required by the CGCL and (c) those laws, regulations and orders noncompliance
with which would not in the aggregate materially impair the ability of HBT to
perform its obligations under this Agreement or be material in any respect to
HBT, no filing or registration with, no waiting period imposed by and no permit,
order, authorization, consent or approval of, any court or governmental
authority is required under any law, regulation or order applicable to HBT to
permit HBT to execute, deliver or perform this Agreement or any instrument
required hereby to be executed and delivered by it at any closing hereunder.

                  2.7      NO VIOLATION. Assuming effectuation of all filings
and registrations with, termination or expiration of any applicable waiting
periods imposed by and receipt of all permits or orders of, courts and/or
governmental authorities indicated as required in SECTION 2.6 and receipt of the
approval of this Agreement by the shareholders of HBT as required by the CGCL,
neither the execution and delivery by HBT of this Agreement or any instrument
required hereby to be executed and delivered by it at any closing hereunder, nor
the performance by HBT of its obligations hereunder, will (a) violate or breach
the terms of or cause a default, or accelerate the performance of any obligation
of HBT or give rise to any payment obligation of any such person, or give rise
to any right of termination, or require any consent, approval or waiver of any
third party that is not a governmental authority, under any law, regulation or
order applicable to HBT or the articles of incorporation or bylaws of HBT or (b)
with the passage of time or the giving of notice have any of the effects set
forth in this SECTION 2.7, except effects that would not, individually or in the
aggregate, have a material adverse effect upon HBT.

                  2.8      REPORTS; FINANCIAL STATEMENTS. The audited statements
of financial position, balance sheets and the related statements of operations
and stockholders' equity (including any related notes thereto) of HBT for its
fiscal years ending December 31, 1998 and 1999 and for the period ending June
30, 2000, attached hereto (the "HBT FINANCIALS") have been prepared on a basis
consistent throughout and with prior periods in accordance with GAAP (except as
otherwise noted therein), and present fairly the financial position of HBT as at
their respective dates, and the results of its operations for the periods
presented therein subject, in the case of the interim financial statements, to
normal year-end adjustments that have not been and are not expected to be
material in amount.

                                      -16-

<PAGE>

                  2.9      NO UNDISCLOSED LIABILITIES. HBT has no liabilities or
obligations of any nature, whether or not accrued, contingent or otherwise,
except (a) liabilities or obligations reflected in HBT Financials through the
fiscal quarter ending June 30, 2000, (b) liabilities or obligations incurred in
the ordinary course of business consistent with past practice since June 30,
2000 which are not, and will not have, individually or in the aggregate, a
material adverse effect on the business, operation or financial condition of HBT
and (c) liabilities or obligations which are not and will not have, individually
or in the aggregate, a material adverse effect on the business, operation or
financial condition of HBT.

                  2.10     ABSENCE OF CERTAIN CHANGES OR EVENTS. Since June 30,
2000, there is not and has not been any change or event that would have a
material adverse effect on the business, operation or financial condition of
HBT.

                  2.11     TITLE TO PROPERTIES. HBT has good, valid and
marketable title to or a valid leasehold in, all of the properties and assets
(real, personal and mixed, tangible and intangible) that are necessary to the
conduct of the business of HBT as it is currently being conducted, including all
of the properties and assets reflected in HBT's consolidated balance sheet as at
June 30, 2000, other than any such properties or assets that have been sold or
otherwise disposed of in the ordinary course of business since June 30, 2000.
HBT holds under valid lease agreements all real and personal properties being
held by HBT under capitalized leases, and all real and personal property held by
HBT that is subject to operating leases, and enjoys peaceful and undisturbed
possession of such properties under such leases, other than any immaterial
properties. HBT has not received any written notice or has knowledge of any
adverse claim to the title to any properties owned by it or with respect to any
lease under which any properties are held by it, other than any claims that,
individually or in the aggregate, are immaterial to HBT. Notwithstanding
anything to the contrary, nothing in this SECTION 2.11 shall be construed to
relate to intellectual property (it being understood that SECTION 2.19 contains
representations and warranties relating to intellectual property).

                  2.12     MATERIAL CONTRACTS. Each Material Contract (as
defined herein) is in full force and effect, and is a valid and binding
obligation of HBT and, to the knowledge of HBT, each of the other parties
thereto, enforceable in accordance with its terms, except (a) that the
enforcement thereof may be limited by (i) bankruptcy, insolvency,
reorganization, moratorium or other similar laws now or hereafter in effect
relating to creditors' rights generally and (ii) general principles of equity
(regardless of whether enforceability is considered in a proceeding in equity or
at law) and (b) as would not have a material adverse effect on HBT. No condition
exists or event has occurred which (whether with or without notice or lapse of
time or both, or the happening or occurrence of any other event) would
constitute a default by HBT, to the knowledge of HBT, any other party thereto
under, or result in a right of termination of, any Material Contract, except as
would not have a material adverse effect on HBT. The term "MATERIAL CONTRACT"
shall mean any contract which is material to HBT and its subsidiaries taken as a
whole or to the business, properties, prospects or financial condition of HBT.

                                      -17-

<PAGE>

                  2.13     INSURANCE. HBT maintains with third parties policies
of fire and casualty, liability and other forms of insurance in such amounts,
with such deductibles and retained amounts, and against such risks and losses,
as it deems reasonable.

                  2.14     PERMITS; COMPLIANCE. HBT has obtained all material
permits that are necessary to carry on its businesses as currently conducted.
Such permits are in full force and effect in all material respects. Such permits
have not been violated, except for such violations as would not have a material
adverse effect on HBT. To the knowledge of HBT, no suspension, revocation or
cancellation of any of such permits has been threatened. There is no litigation
pending or, to the knowledge of HBT, threatened regarding suspension, revocation
or cancellation of any of such permits.

                  2.15     LITIGATION. There is no action, suit, proceeding or
investigation pending or, to HBT's knowledge, currently threatened against HBT
that questions, or would question, directly or indirectly, the validity of this
Agreement or the Investor Rights Agreement or the right of HBT to enter into
such agreements, or to consummate the transactions contemplated hereby or
thereby, or that might result, either individually or in the aggregate, in any
material adverse changes in the assets, condition, affairs or prospects of HBT,
financially or otherwise, or any change in the current equity ownership of HBT,
nor is HBT aware that there is any basis for the foregoing. The foregoing
includes, without limitation, actions, suits, proceedings or investigations
pending or threatened (or any basis therefor known to HBT) involving the prior
employment of any of HBT's employees, their use in connection with HBT's
business of any information or techniques allegedly proprietary to any of their
former employers, to their obligations under any agreements with prior
employers. HBT is not a party or subject to the provisions of any order, writ,
injunction, judgment or decree of any court of government agency or
instrumentality. There is no action, suit, proceeding or investigation by HBT
currently pending or that HBT intends to initiate.

                  2.16     COMPLIANCE WITH LAWS. HBT is not subject to any
written agreement, written directive, memorandum of understanding or order with
or by any court or governmental authority restricting in any material respect
its operation or requiring any materially adverse actions by HBT. HBT is in
compliance with all applicable laws and regulations and is not in default with
respect to any order applicable to HBT, except for such failure to comply or
defaults which would not have a material adverse effect on HBT.

                  2.17     TAXES. Except as set forth in HBT's Disclosure
Schedule, HBT represents and warrants as follows:

                  (a)      All federal, state, local and foreign tax returns
required to be filed (taking into account extensions) by or on behalf of HBT,
and each affiliated, combined, consolidated or unitary group of which HBT is or
has been a member have been timely filed, and all such tax returns are true,
complete and correct in all material respects.

                  (b)      All Taxes payable by or with respect to HBT have been
timely paid, or adequately reserved for and shown on HBT's Financials. No
deficiencies for any taxes have been proposed, asserted or assessed in writing
against HBT that are not adequately reserved for

                                      -18-

<PAGE>

and shown on HBT's Financials. All assessments for taxes due and owing by or
with respect to HBT with respect to completed and settled examinations or
concluded litigation have been paid.

                  (c)      HBT has complied in all material respects with all
rules and Regulations relating to the payment and withholding of taxes
(including, without limitation, withholding of taxes pursuant to Sections 1441
and 1442 of the Internal Revenue Code or similar provisions under any foreign
laws) and have, within the time and in the manner required by law, withheld from
employee wages and paid over to the proper governmental authorities all amounts
required to be so withheld and paid over under all applicable laws.

                  (d)      HBT (i) has not waived any statutory period of
limitations in respect of its or their taxes or tax returns, which waiver
remains in effect, nor (ii) is it a party to, bound by, or have any obligation
under any tax sharing, allocation, indemnity, or similar contract or
arrangement.

                  2.18     ENVIRONMENTAL LAWS AND REGULATIONS. Except as would
not be or result in a material adverse effect on HBT: (a) HBT has been in
compliance with all applicable environmental laws; (b) HBT has obtained all
permits required by any applicable environmental law and all such permits are in
full force and effect; (c) HBT has not, and HBT has no knowledge of any other
person who has, caused any release, threatened release or disposal of any
hazardous material at any properties or facilities previously or currently
owned, leased or occupied by HBT; (d) HBT has no knowledge that any of its
properties or facilities are adversely affected by any release, threatened
release or disposal of a hazardous material originating or emanating from any
other property; (e) HBT (i) has no liability for response or corrective action,
natural resources damage, or any other harm pursuant to any environmental law,
(ii) is not subject to, has notice or knowledge of, or is required to give any
notice of any environmental claim or (iii) has knowledge of any condition or
occurrence which could form the basis of an environmental claim against HBT, or
any of its properties or facilities; (f) HBT properties and facilities are not
subject to any, and HBT has no knowledge of any, imminent restriction on the
ownership, occupancy, use or transferability of their properties and facilities
arising from any (i) environmental law or (ii) release, threatened release or
disposal of any hazardous material; and (g) there is no environmental claim
pending, or, to HBT's knowledge, threatened, against HBT or, to HBT's knowledge,
against any person whose liability for any environmental claim HBT has or may
have retained or assumed either contractually or by operation of law.

                  2.19     INTELLECTUAL PROPERTY.

                  (a)      HBT's Disclosure Schedule sets forth, for the
Intellectual Property owned by HBT, a complete and accurate list of all United
States and foreign (i) patents and patent applications; (ii) trademark
registrations (including material Internet domain registrations) and
applications and material unregistered trademarks; (iii) copyright registrations
and applications, indicating for each, the applicable jurisdiction, registration
number (or application number), and date issued (or date filed).

                  (b)      Except as would not have a material adverse effect on
HBT;

                                      -19-

<PAGE>

                           (i)      HBT owns, free and clear of liens, orders
         and arbitration awards, all owned intellectual property currently used
         in HBT's business, and has a valid and enforceable right to use all of
         the intellectual property licensed to HBT and currently used in HBT's
         business;

                           (ii)     to the knowledge of HBT, HBT has taken
         reasonable steps to protect the intellectual property of HBT;

                           (iii)    to the knowledge of HBT, the conduct of
         HBT's businesses as currently conducted does not infringe upon any
         rights owned or controlled by any third party;

                           (iv)     there is no litigation pending or to HBT's
         knowledge threatened or any written claim from any person (A) alleging
         that HBT's activities or the conduct of its businesses infringes upon,
         violates, or constitutes the unauthorized use of the intellectual
         property rights of any third party or (B) challenging the ownership,
         use, validity or enforceability of any HBT intellectual property;

                           (v)      no legal action has been brought against any
         third party by HBT for misappropriating, infringing, diluting, or
         violating any intellectual property owned by HBT; and

                           (vi)     the execution, delivery and performance by
         HBT of this Agreement, and the consummation of the transactions
         contemplated hereby, will not result in the loss or impairment of, or
         give rise to any right of any third party to terminate, any of HBT's
         rights to own any of its intellectual property or their respective
         rights under license agreements, nor require the consent of any
         governmental authority or third party in respect of any such
         intellectual property.

                  (c)      Each employee, officer and consultant of HBT has
executed a Proprietary Information and Inventions Agreement in the form provided
to the parties hereto. HBT is not aware that any of its employees, officers or
consultants are in violation thereof, and HBT will use its best efforts to
prevent any such violation.

                  2.20     BROKERS. No broker, finder, investment banker or
other person is entitled to any brokerage, finder's or other fee or commission
in connection with the transactions contemplated by this Agreement based upon
arrangements made by or on behalf of HBT.

                  2.21     RELATED-PARTY TRANSACTIONS. No employee, officer, or
director of HBT or member of his or her immediate family is indebted to HBT, nor
is HBT indebted (or committed to make loans or extend or guarantee credit) to
any of them. To the best of HBT's knowledge, none of such persons has any direct
or indirect ownership interest in any firm or corporation with which HBT is
affiliated or with which HBT has a business relationship, or any firm or
corporation that competes with HBT, except that employees, officers, or
directors of HBT and members of their immediate families may own stock in
publicly traded companies that may

                                      -20-

<PAGE>

compete with HBT. No member of the immediate family of any officer or director
of HBT is directly or indirectly interested in any material contract with HBT.

                  2.22     LABOR AGREEMENTS AND ACTIONS; EMPLOYEE COMPENSATION.
HBT is not bound by or subject to (and none of its assets or properties is bound
by or subject to) any written or oral, express or implied, contract, commitment
or arrangement with any labor union, and no labor union has requested or, to the
best of HBT's knowledge, has sought to represent any of the employees,
representatives or agents of HBT. There is no strike or other labor dispute
involving HBT pending, or to the best of HBT's knowledge, threatened, that could
have a material adverse effect on the assets, properties, financial condition,
operating results, or business of HBT (as such business is presently conducted
and as it is proposed to be conducted), nor is HBT aware of any labor
organization activity involving its employees. HBT is not aware that any officer
or key employee, or that any group of key employees, intends to terminate their
employment with HBT, nor does HBT have a present intention to terminate the
employment of any of the foregoing. The employment of each officer and employee
of HBT is terminable at the will of HBT. To the best of its knowledge, HBT has
complied in all material respects with all applicable state and federal equal
employment opportunity and other laws related to employment. HBT is not a party
to or bound by any currently effective employment contract, deferred
compensation agreement, bonus plan, incentive plan, profit sharing plan,
retirement agreement, or other employee compensation agreement.

                  2.23     EMPLOYEE BENEFIT PLANS.

                  (a)      Each of the Benefit Plans has been operated and
administered in all material respects in accordance with its governing documents
and applicable federal and state laws (including, but not limited to, ERISA and
the IRC). For purposes of this Agreement, "BENEFIT PLANS" shall mean all
employee retirement, welfare, stock option stock ownership, deferred
compensation, bonus or other benefit plans, agreements, practices, policies,
programs, or arrangements that are applicable to any employee, director or
consultant of HBT or its Subsidiaries or maintained by or contributed to by HBT
or its Subsidiaries.

                  (b)      As to any Benefit Plan subject to Title IV of ERISA,
there is no event or condition which presents the material risk of plan
termination, no accumulated funding deficiency, whether or not waived, within
the meaning of Section 302 of ERISA or Section 412 of the IRC has been incurred
for which any liability is outstanding, no reportable event within the meaning
of Section 4043 of ERISA (for which the notice requirements of Regulation
Section 4043 promulgated by the Pension Benefit Guaranty Corporation ("PBGC")
have not been waived) has occurred within the last six years, no notice of
intent to terminate the Benefit Plan has been given under Section 4041 of ERISA,
no proceeding has been instituted under Section 4042 of ERISA to terminate the
Benefit Plan, there has been no termination or partial termination of the
Benefit Plan within the meaning of Section 411(d)(3) of the IRC within the last
six years, except with respect to the conversion of the retirement income plan
to a cash balance plan for which full vesting was granted with respect to
affected employees, no event described in Sections 4062 or 4063 of ERISA has
occurred, all PBGC premiums have been timely paid and no liability to the PBGC
has been incurred, except for PBGC premiums not yet due.

                                      -21-

<PAGE>

                  (c)      Each trust funding a Benefit Plan, which trust is
intended to be exempt from federal income taxation pursuant to Section 501(c)(9)
of the IRC, satisfies the requirements of such section and has, whenever
required by law, received a favorable determination letter from the IRS
regarding such exempt status, and to the knowledge of HBT has not, since receipt
of the most recent favorable determination letter, been amended or operated in
any way which would adversely affect such exempt status.

                  (d)      With respect to any Benefit Plan or any other
"EMPLOYEE BENEFIT PLAN" as defined in Section 3(3) of ERISA which is
established, sponsored, maintained or contributed to, or has been established,
sponsored, maintained or contributed to or, to the knowledge of HBT, with
respect to any such plan which has been established, sponsored, maintained or
contributed to within six years prior to the applicable closing, by HBT or its
Subsidiaries or any corporation, trade, business or entity under common control
or being a part of an affiliated service group with HBT, within the meaning of
Section 414(b), (c) or (m) of the IRC or Section 4001 of ERISA ("HBT COMMONLY
CONTROLLED-ENTITY"), (i) no withdrawal liability, within the meaning of Section
4201 of ERISA, has been incurred, which withdrawal liability has not been
satisfied and no such withdrawal liability is reasonably expected to incurred,
(ii) no liability under Title IV of ERISA (including, but not limited to,
liability to the PBGC) has been incurred by HBT or any HBT Commonly Controlled
Entity, which liability has not been satisfied (other than for PBGC premiums not
yet due), (iii) no accumulated funding deficiency, whether or not waived, within
the meaning of Section 302 of ERISA or Section 412 of the IRC has been incurred
for which any liability is outstanding, (iv) there has been no failure to make
any contribution (including installments) to such plan required by Section 302
of ERISA and Section 412 of the IRC and for which any liability is currently
outstanding, (v) to the knowledge of HBT, no action, omission or transaction has
occurred with respect to any such plan or any other Benefit Plan which could
subject HBT or the plan or trust forming a part thereof to a material civil
liability or penalty under ERISA or other applicable laws, or a material Tax
under the IRC, (vi) any such plan which is a Group Health Plan has complied in
all material respects with the provisions of Sections 601-608 of ERISA and
Section 4980B of the IRC, (vii) there are no pending or, to the knowledge of
HBT, threatened claims by or on behalf of any such plan or any other Benefit
Plan, by any employees, former employees or plan beneficiaries covered by such
plan or otherwise by or on behalf of any person involving any such plan (other
than routine non-contested claims for benefits) which could result in a material
liability to HBT and its Subsidiaries, taken as a whole, and (viii) neither HBT
nor any HBT Commonly Controlled Entity has engaged in, or is a successor or
parent corporation to any entity or person that has engaged in, a transaction
described in Section 4069 of ERISA.

                  (e)      The execution and delivery of this Agreement and the
consummation of the transactions contemplated hereby will not (i) increase the
amount of benefits otherwise payable under any Benefit Plan, (ii) result in the
acceleration of the time of eligibility to participate in any Benefit Plan, or
of any payment, exercisability, funding or vesting of any benefit under any
Benefit Plan, (iii) result in payment becoming due or with respect to any
current or former employee, director or consultant, or (iv) result in any
payment becoming due in the event of a termination of employment or service of
any employee, director or consultant.

                                      -22-

<PAGE>

                  (f)      HBT is not a party to any contract nor has it
established any policy or practice, which would require HBT to make a payment or
provide any other form of compensation or benefit to any person performing (or
who within the past twelve months performed) services for HBT during or upon
termination of such services which would not be payable or provided in the
absence of the consummation of the transactions contemplated by this Agreement.

                  (g)      Except as would affect unionized employees and/or
retirees who are covered by bargaining agreements, if any, each Benefit Plan,
which is an "EMPLOYEE WELFARE BENEFIT PLAN," as such term is defined in Section
3(1) of ERISA, may be unilaterally amended or terminated in its entirety without
any liability being incurred by HBT or any affiliate of HBT, except as to
benefits accrued thereunder prior to such amendment or termination.

                  (h)      As of the date of this Agreement, HBT has not
contributed nor been obligated to contribute to any "MULTI-EMPLOYER PLAN" within
the meaning of Section 3(37) of ERISA within the last six years and has no
outstanding liability with respect to any such plan.

                                   ARTICLE III
              REPRESENTATIONS AND WARRANTIES OF SOFINOV AND SOFICAL

                  Sofinov hereby represents and warrants, with respect to itself
and Sofical to the other parties hereto, subject to the exceptions set forth in
the Sofinov's Disclosure Schedule that:

                  3.1      ORGANIZATION AND QUALIFICATION; SUBSIDIARIES. Sofinov
and Sofical are legal entities duly organized, validly existing and in good
standing, or will be in good standing on the date of any filing with the
Secretary of State of the State of California, under the laws of their
respective jurisdictions of incorporation or organization, have all requisite
power and authority to own, lease and operate their respective properties and to
carry on their business as it is now being conducted and are duly qualified and
in good standing to do business in each jurisdiction in which the nature of the
business conducted by them or the ownership or leasing of their respective
properties makes such qualification necessary.

                  3.2      CERTIFICATE OF INCORPORATION; BYLAWS. Sofinov and
Sofical have furnished or made available to HBT complete and correct copies of
the articles of incorporation and the bylaws in each case as amended or restated
to the date hereof, of Sofinov and Sofical. Neither Sofinov nor Sofical are in
violation of any of the provisions of their charters or bylaws.

                  3.3      CAPITALIZATION. As of the date hereof, the authorized
capital stock of Sofical consists of 10,000 shares of Common Stock, of which, as
of the date hereof, 10,000 shares were issued and outstanding and held by
Sofinov.

                  3.4      AUTHORIZATION OF AGREEMENT. Each of Sofinov and
Sofical has all requisite corporate power and authority to execute and deliver
this Agreement, and each instrument required hereby to be executed and delivered
by Sofinov and Sofical at the applicable closing, and to perform its obligations
hereunder and to consummate the transactions contemplated hereby and thereby;
the execution and delivery by Sofinov and Sofical of this Agreement, and

                                      -23-

<PAGE>

each instrument required hereby to be executed and delivered by Sofinov and
Sofical at the closing, and the performance of their respective obligations
hereunder have been duly and validly authorized by the Board of Directors of
each of Sofinov and Sofical; and this Agreement has been duly executed and
delivered by each of Sofinov and Sofical and, assuming due authorization,
execution and delivery hereof by the other parties, constitutes a valid and
binding obligation of each of Sofinov and Sofical, enforceable against each of
Sofinov and Sofical in accordance with its terms, subject to bankruptcy,
insolvency, reorganization, moratorium or similar laws now or hereafter in
effect relating to creditors' rights generally or to general principles of
equity.

                  3.5      APPROVALS. Except for the applicable requirements, if
any, of (a) the HSR Act, (b) the filing and recordation of appropriate merger
documents as required by the CGCL and (c) those laws, regulations and orders
noncompliance with which would not in the aggregate materially impair the
ability of Sofinov and Sofical to perform their obligations under this Agreement
or be material in any respect to Sofinov and Sofical, no notices to, consents or
approvals of, or filings or registrations with any court or governmental
authority is required under any law, regulation or order applicable to Sofinov
and Sofical to permit Sofinov and Sofical to execute, deliver or perform this
Agreement or any instrument required hereby to be executed and delivered by them
at the closing.

                  3.6      NO VIOLATION. Assuming effectuation of all filings
and registrations with, termination or expiration of any applicable waiting
periods imposed by and receipt of all permits or orders of, courts and/or
governmental authorities indicated as required in SECTION 3.5, neither the
execution and delivery by Sofinov and Sofical of this Agreement, or any
instrument required hereby to be executed and delivered by Sofinov and Sofical
at the closing nor the performance by Sofinov and Sofical of their respective
obligations hereunder or thereunder will (a) violate or breach the terms of or
cause a default under any law, regulation or order applicable to Sofinov and
Sofical, the charter or by-laws of Sofinov and Sofical or any contract, note,
bond, mortgage, indenture, license, agreement or other instrument to which
Sofinov and Sofical is a party or by which it or any of its properties or assets
is bound, or (b) with the passage of time, the giving of notice or the taking of
any action by a third person, have any of the effects set forth in this Section,
except in any such case for any matters described in this SECTION 3.6 that would
not in the aggregate have a material adverse effect upon the ability of Sofinov
and Sofical to perform their obligations under this Agreement.

                                   ARTICLE IV
               REPRESENTATIONS AND WARRANTIES OF THE INDIVIDUALS.

                  The Individuals hereby separately and not jointly represent
and warrant to the other parties hereto, subject to the exceptions set forth in
such Individual's Disclosure Schedule that:

                  4.1      OWNERSHIP OF MEMBERSHIP INTEREST. Each Individual is
the owner of the membership interest in PGS set forth opposite such Individuals
name as shown on SCHEDULE A

                                      -24-

<PAGE>

hereto, free and clear of all liens, encumbrances and other charges with respect
to such membership interests.

                  4.2      REQUISITE POWER AND AUTHORITY. Each Individual has
all necessary power and authority under all applicable provisions of law to
execute and deliver this Agreement and to carry out its provisions. All action
on each Individual's part required for the lawful execution and delivery of this
Agreement has been or will be effectively taken prior to the Closing. Upon their
execution and delivery, this Agreement will be valid and binding obligations of
each Individual, enforceable in accordance with its terms, except (a) as limited
by applicable bankruptcy, insolvency, reorganization, moratorium or other laws
of general application affecting enforcement of creditors' rights, and (b) as
limited by general principles of equity that restrict the availability of
equitable remedies.

                  4.3      INVESTMENT REPRESENTATIONS. Each Individual
understands that neither the common stock of Newco and of HBT (the "SHARES")
have been registered under the Securities Act. Each Individual also understands
that the shares of Newco or of HBT are being offered and sold pursuant to an
exemption from registration contained in the Securities Act based in part upon
each Individual's representations contained in the Agreement. Each Individual
hereby represents and warrants as follows:

                  (a)      ECONOMIC RISK. Each Individual has substantial
experience in evaluating and investing in private placement transactions of
securities in companies similar to HBT so that it is capable of evaluating the
merits and risks of its investment in HBT and has the capacity to protect its
own interests. Each Individual must bear the economic risk of this investment
indefinitely unless the shares are registered pursuant to the Securities Act, or
an exemption from registration is available. Each Individual understands that
HBT has no present intention of registering the securities. Each Individual also
understands that there is no assurance that any exemption from registration
under the Securities Act will be available and that, even if available, such
exemption may not allow each Individual to transfer all or any portion of the
Shares under the circumstances, in the amounts or at the times each Individual
might propose.

                  (b)      ACQUISITION FOR OWN ACCOUNT. Each Individual is
acquiring the Shares for each Individual's own account for investment only, and
not with a view towards their distribution.

                  (c)      PROTECT ITS INTEREST. Each Individual represents that
by reason of its, or of its management's, business or financial experience, each
Individual has the capacity to protect its own interests in connection with the
transactions contemplated in this Agreement.

                  (d)      ACCREDITED INVESTOR. Each Individual represents that
it is an accredited investor within the meaning of Regulation D under the
Securities Act.

                  (e)      COMPANY INFORMATION. Each Individual has received and
read the Financial Statements and has had an opportunity to discuss HBT's
business, management and financial affairs with directors, officers and
management of HBT and has had the opportunity to review HBT's operations and
facilities. Each Individual has also had the opportunity to ask

                                      -25-

<PAGE>

questions of and receive answers from, HBT and its management regarding the
terms and conditions of this investment.

                  (f)      RULE 144. Each Individual acknowledges and agrees
that the Shares must be held indefinitely unless they are subsequently
registered under the Securities Act or an exemption from such registration is
available. Each Individual has been advised or is aware of the provisions of
Rule 144 promulgated under the Securities Act as in effect from time to time,
which permits limited resale of shares purchased in a private placement subject
to the satisfaction of certain conditions, including, among other things: the
availability of certain current public information about HBT, the resale
occurring following the required holding period under Rule 144 and the number of
shares being sold during any three-month period not exceeding specified
limitations.

                        ARTICLE V. CONDITIONS TO CLOSING.

                  5.1      CONDITIONS TO OBLIGATIONS OF EACH PARTY UNDER THIS
AGREEMENT. The respective obligations of each party to effect the transactions
contemplated hereby will be subject to the satisfaction at or prior to the
Effective Time with respect to each transaction of the following conditions, any
or all of which may be waived by the party entitled to the benefit thereof, in
whole or in part, to the extent permitted by applicable law:

                  (a)      SOFINOV AND HBT APPROVALS. This Agreement, the
Reorganization and the Merger (or the Alternative Merger, as the case may be)
shall have been approved, adopted and not withdrawn by the Boards of Directors
and by the requisite vote of the shareholders of Sofinov and HBT, if and to the
extent such approvals are necessary to consummate the transactions contemplated
herein, in accordance with the CGCL, and the articles of incorporation and
bylaws of Sofinov and HBT.

                  (b)      REGULATORY APPROVALS. All approvals and consents of
applicable courts and/or governmental authorities required to consummate the
transaction shall have been received, and all applicable waiting periods under
the HSR Act, if any, shall have expired or been terminated.

                  5.2      ADDITIONAL CONDITIONS TO OBLIGATIONS OF SOFINOV. The
obligations of the Sofinov and Sofical to effect the Merger (or the Alternative
Merger, as the case may be) and the other transactions contemplated herein shall
be subject to the satisfaction at or prior to the applicable Effective Time of
the following additional conditions, any or all of which may be waived by
Sofinov, in whole or in part, to the extent permitted by applicable law:

                  (a)      REPRESENTATIONS AND WARRANTIES. Each of the
representations and warranties of the other parties hereto contained in this
Agreement shall be true and correct as of the date hereof and at and as of the
applicable Closing Date as if made at and as of such time, except that, to the
extent such representations and warranties address matters only as of a
particular date, such representations and warranties shall, to such extent, be
true and correct at and as of such particular date as if made at and as of such
particular date. Sofinov shall have received a certificate of an executive
officer of HBT, dated the date of the applicable Effective

                                      -26-

<PAGE>

Time, to such effect with respect to HBT.

                  (b)      AGREEMENTS AND COVENANTS. HBT and the Individuals
shall have performed or complied in all material respects with all agreements
and covenants required by this Agreement to be performed or complied with by it
at or prior to the Closing. Sofinov shall have received a certificate of an
executive officer of HBT, dated the Closing Date, to such effect.

                  (c)      OFFICER'S CERTIFICATE. HBT shall deliver to Sofinov
the certificate of the president, vice-president, secretary or treasurer of HBT
that all representations and warranties of HBT, PHS and PGS contained in this
Agreement were true and correct in all material respects on and as of the date
of this Agreement and are true and correct in all material respects as of the
applicable Closing Date with the same force and effect as though made on and as
of such dates, except as may be affected by the transactions contemplated
hereby.

                  (d)      THIRD PARTY CONSENTS. All consents of third parties
required under any contract, note, bond, mortgage, indenture, license, agreement
or other instrument to which HBT is a party or by which it is bound and which is
material to HBT shall have been obtained, except where the failure to obtain
such consents, either individually or in the aggregate, shall not have or be a
material adverse effect on HBT.

                  (e)      OPINION OF COUNSEL. Sofinov shall have received the
opinion of HBT's counsel in form and substance reasonably satisfactory to it.

                  (f)      ATTORNEYS FEES. The fees and disbursements of
Sofinov's attorneys shall be paid by HBT. On or before the Reorganization
Closing Date, HBT shall have reimbursed Sofinov for the amounts paid and/or
owing to its attorneys incurred in connection with the LOI, this Agreement and
the Reorganization; and, on or before the Merger Closing Date, HBT shall have
reimbursed Sofinov for the amounts paid and/or owing to its attorneys in
connection with the Merger or the Alternative Merger, as the case may be.

                  (g)      LOAN CONVERSIONS. On or before the Reorganization
Closing Date, HBT will provide to Sofinov a certificate signed by an authorized
officer of HBT certifying that all existing loans (except for the $100,000 loan
from Joe Stell) from the shareholders to HBT have been converted into Common
Stock of HBT at no less than $1 per share.

                  (h)      LICENSES/LOANS BETWEEN PHS, PGS AND HBT. On the
Reorganization Closing Date, HBT shall provide to Sofinov a certificate signed
by an authorized officer of HBT certifying that the PGS license is terminated,
and all moneys and royalties owed pursuant to such license are canceled. On the
Merger Closing Date, HBT shall provide to Sofinov a certificate signed by an
authorized officer of HBT certifying that the PHS license is terminated, and all
moneys and royalties owed pursuant to such license are canceled.

                  5.3      ADDITIONAL CONDITIONS TO OBLIGATIONS OF HBT. The
obligations of HBT to effect the Merger and the other transactions contemplated
hereby shall be subject to the satisfaction at or prior to the applicable
Effective Time of the following additional conditions,

                                      -27-

<PAGE>

any or all of which may be waived by HBT, in whole or in part, to the extent
permitted by applicable Law:

                  (a)      REPRESENTATIONS AND WARRANTIES. Each of the
representations and warranties of the other parties contained in this Agreement
shall be true and correct as of the date hereof and at and as of the Closing
Date as if made at and as of such time, except that to the extent such
representations and warranties address matters only as of a particular date,
such representations and warranties shall, to such extent, be true and correct
as of the date hereof and at and as of such particular date as if made at and as
of such particular date. HBT shall have received a certificate of an executive
officer of each of the Sofinov and Sofical, dated the date of the Effective
Time, to such effect with respect to them.

                  (b)      AGREEMENTS AND COVENANTS. Each of the other parties
hereto shall have performed or complied in all material respects with all
agreements and covenants required by this Agreement to be performed or complied
with by them at or prior to the Closing. HBT shall have received a certificate
of an executive officer of each of Sofinov and Sofical, dated the Closing Date,
to such effect with respect to them.

                  (c)      PURCHASE PRICE FOR SHARES. Sofinov shall have
provided for payment of the purchase of any additional shares of HBT Common
Stock or HBT Preferred Stock, as applicable, to the satisfaction of HBT.

                         ARTICLE VI. FURTHER ASSURANCES.

                  6.1      GOOD FAITH NEGOTIATIONS. The parties hereto agree
that each shall negotiate in good faith and use its, his or her best efforts to
consummate the transactions as provided herein at the earliest practicable time,
it being understood and agreed that time is of the essence in completing the
transactions contemplated herein .

                  6.2      ACCESS TO INFORMATION. Until the Merger or the
Alternative Merger is completed, Sofinov and its attorneys, accountants and
other representatives and agents shall have reasonable access during normal
business hours and upon reasonable notice, to the books, records, contracts and
other documents and information regarding the businesses, finances and assets of
HBT, PGS, PHS and Newco. Such persons shall also have reasonable access during
normal business hours and upon reasonable notice, to legal, financial,
accounting and other consultants to HBT, PGS, PHS and Newco with knowledge of
their respective businesses, finances and assets.

                  6.3      PUBLIC DISCLOSURE. HBT and Sofinov shall consult each
other and shall agree as to the timing, content and form before issuing any
press release or other public disclosure related to this Agreement and the
Reorganization and the Merger contemplated hereby. However, this does not
prohibit either party from making a public disclosure related to this Agreement
or the Reorganization and the Merger if, and to the extent that, in the opinion
of its or their counsel, such a disclosure is required by law.

                                      -28-

<PAGE>

                  6.4      SPECIAL POWER OF ATTORNEY. To the fullest extent
permitted by law each Individual hereby makes, constitutes and appoints David
Moard and Michael Burke, and each of them, with full power of substitution, the
true and lawful representative and attorney-in-fact of, and in the name, place
and stead of, such Individual, with the power from time to time to make,
execute, sign, acknowledge, swear to, verify, deliver, record, file or publish
all such instruments, documents and certificates which, in the opinion of legal
counsel to HBT may be necessary or appropriate to effectuate, implement and
consummate the Reorganization, the Merger, and/or the IPO.

                  6.5      WRITTEN CONSENT. The execution of this Agreement by
each of the parties hereto shall constitute (A) the unanimous written consent of
all the members of PHS and PGS and the sole shareholder of Sofical to (i) waive
any right to notice of meeting to vote for approval of this Agreement and the
transactions contemplated herein; (ii) approve all of the terms and conditions
of this Agreement and the transactions contemplated herein; and (iii) approve
the actions of HBT and the other parties hereto in connection with the
Reorganization; and (B) the unanimous written consent of the shareholders of
Newco to (i) waive any right to notice of meeting to vote for the approval of
this Agreement and all the transactions contemplated herein; (ii) approve all of
the terms and conditions of this Agreement and the transactions contemplated
herein, including the election of directors and officers of Newco and the Merger
or the Alternative Merger, as the case may be, and (iii) approve the actions of
HBT and the other parties hereto in connection with the Merger or the
Alternative Merger.

                     ARTICLE VII. SURVIVAL; INDEMNIFICATION.

                  7.1      SURVIVAL. The representations and warranties of the
parties contained in this Agreement, or in any Schedule or Exhibit hereto or any
certificate delivered pursuant hereto, shall survive until the first anniversary
of the consummation of an IPO; PROVIDED, that, the representations and
warranties contained in ARTICLE VII shall survive for the applicable statute of
limitations periods. No claim for indemnification for breach of a representation
or warranty may be asserted after the expiration of the Indemnity Period;
PROVIDED, that, the written assertion of any claim by a party against the other
hereunder with respect to the breach or alleged breach of any representation or
warranty (or a series of facts which would support such breach) shall extend the
Indemnity Period with respect to such claim through the date such claim is
conclusively resolved. No investigation by either party shall relieve the other
party from any liability for any misrepresentation or breach of warranty made by
such other party in this Agreement, or in any Schedule or Exhibit hereto or any
certificate delivered pursuant hereto. With respect to any matters covered by
the indemnity provisions set forth in this ARTICLE VII, the indemnification
provisions set forth herein shall be the sole remedy available to any party
hereunder with respect to such matter, other than any claim of fraud or
intentional misrepresentation in connection with this Agreement; PROVIDED, that,
notwithstanding any other provision herein to the contrary, each party
acknowledges and agrees that each party shall be entitled to a decree of
specific performance or any other appropriate equitable remedy to enforce the
terms and conditions of this Agreement prior to the Closing Date.

                  7.2      INDEMNIFICATION.

                                      -29-

<PAGE>

                  (a)      HBT hereby agrees to indemnify, defend and hold
harmless the other parties hereto (and their successors and assigns) from and
against any losses, liabilities, damages, expenses, claims, fines, penalties,
interest, costs of investigation, assessments, judgments, actions, proceedings
and suits of whatever kind and nature and all costs and expenses relating
thereto (including without limitation, in-house and outside attorneys' fees and
expenses) incurred in connection with the investigation or defense thereof or in
asserting rights hereunder (collectively, "LOSSES") based upon, arising out of
or otherwise resulting from (i) any inaccuracy in any representation or breach
of any warranty of, PGS or PHS contained in this Agreement or in any schedule or
certificate delivered pursuant hereto or thereto or (ii) the breach or
nonfulfillment of any covenant, agreement or other obligation of HBT, PGS, or
PHS under this Agreement.

                  (b)      Promptly after the receipt by Sofinov of any notice
of any third party claim or the commencement of any third party action, suit or
proceeding subject to indemnification hereunder (a "THIRD PARTY CLAIM"), Sofinov
(the "INDEMNIFIED PARTY") will, if a claim in respect thereto is to be made
against HBT (the "INDEMNIFYING PARTY"), give such Indemnifying Party reasonable
written notice of such Third Party Claim; PROVIDED, that, the failure to provide
such notice will not relieve the Indemnifying Party of any of its obligations,
or impair the right of the Indemnified Party to indemnification, pursuant to
this SECTION 7.2 unless, and only to the extent that, such failure materially
prejudices the Indemnifying Party's opportunity to defend or compromise the
Third Party Claim. Such Indemnifying Party shall have the right, at its option,
to defend at its own expense and by its own counsel any Third Party Claim,
provided that (i) the Indemnifying Party acknowledges in writing (at the time
such Indemnifying Party elects to assume such defense) its obligation under this
SECTION 7.2 to indemnify the Indemnified Party with respect to such Third Party
Claim, (ii) such counsel is reasonably satisfactory to the Indemnified Party,
(iii) the Indemnified Party is kept fully informed of all developments, and is
furnished with copies of all documents and papers, related thereto and is given
the right to participate in the defense and investigation thereof as provided
below, and (iv) such counsel proceeds with diligence and in good faith with
respect thereto. If the Indemnifying Party shall undertake to defend any Third
Party Claim, the Indemnifying Party shall notify the Indemnified Party of its
intention to do so promptly (and in any event no later than twenty (20) days)
after receipt of notice of the Third Party Claim, and the Indemnified Party
agrees to cooperate in good faith with the Indemnifying Party and its counsel in
the defense of such Third Party Claim. Notwithstanding the foregoing, the
Indemnified Party shall have the right to participate in the defense and
investigation of any Third Party Claim with its own counsel at its own expense,
except that the Indemnifying Party shall bear the expense of such separate
counsel if (A) in the view of counsel to the Indemnified Party reasonably
acceptable to the Indemnifying Party, use of counsel of the Indemnifying Party's
choice would be expected to give rise to a conflict of interest, (B) there are
or may be legal defense available to the Indemnified Party that are difference
from or additional to those available to the Indemnifying Party, (C) the
Indemnifying Party shall not have employed counsel to represent the Indemnified
Party within a reasonable time after notice of the Third Party Claim is given to
the Indemnified Party or (D) the Indemnifying Party shall authorize the
Indemnified Party to employ separate counsel at the expense of the Indemnifying
Party. The Indemnifying Party shall not settle any Third Party Claim without
prior written consent of the Indemnified Party, which shall not be

                                      -30-

<PAGE>

unreasonably withheld; PROVIDED, that, an Indemnified Party shall not be
required to consent to any settlement involving the imposition of equitable
remedies; and, PROVIDED, FURTHER, that, in no circumstances shall the
Indemnifying Party consent to the entry of a judgment with respect to any Third
Party Claim or enter into any settlement which does not include a provision
whereby the plaintiff or claimant in such matter releases the Indemnified Party
from all liability with respect thereto.

                        ARTICLE VIII. OMNIBUS PROVISION.

                  8.1      COUNTERPARTS. This Agreement may be executed in one
or more counterparts and by facsimile, each of which shall be an original, but
all of which together shall constitute one and the same instrument.

                  8.2      AMENDMENTS. This Agreement may be amended only by an
instrument in writing signed by the parties hereto.

                  8.3      GOVERNING LAW. This Agreement shall be governed by
and construed in accordance with the laws of the State of California, excluding
any conflicts or choice of law rule or principle that might otherwise refer
construction or interpretation of this Agreement to the substantive law of
another jurisdiction.

                  8.4      VENUE. The parties agree that any action or
proceeding arising out of or relating to this Agreement shall be commenced in a
state or federal court situated in the City and County of Los Angeles,
California, which the parties agree shall be the sole and exclusive venue.

                  8.5      NOTICE. All notices, requests and other
communications hereunder shall be in writing and shall be deemed given upon
receipt if either (a) personally delivered, (b) sent by prepaid first class
mail, and registered or certified and a return receipt requested or (c) by
facsimile telecopier with completed transmission acknowledged:

                                    IF TO HBT:

                                    Hydrogen Burner Technology, Inc.
                                    19300 Susana Road
                                    Rancho Dominguez, California 90221
                                    Fax: 310-900-0410
                                    Attention: David Moard and Michael Burke

                                    With a copy to:

                                    Manatt, Phelps & Phillips, LLP
                                    11355 West Olympic Boulevard.
                                    Los Angeles, California 90664
                                    Fax: 310-312-4224
                                    Attention: John Sarafopoulos

                                      -31-

<PAGE>

                                    IF TO SOFINOV:

                                    Sofinov Societe Financiere d'Innovation Inc.
                                    1981, Avenue McGill College
                                    Montreal, Quebec H3A 3C7
                                    Fax: 514-847-2628

                                    With a copy to:

                                    Hughes Hubbard & Reed LLP
                                    350 South Grand Avenue, 36th Floor
                                    Los Angeles, California 90071-3442
                                    Attention: Eric van Ginkel, Esq.
                                    Fax: 213-613-2950

                                    IF TO THE OTHER PARTIES:

                                    at their respective addresses indicated in
                                    the first paragraph of this Agreement and
                                    SCHEDULE A.

                  8.6      ENTIRE AGREEMENT. This Agreement is intended to
supersede all prior agreements between the parties hereto relating to the
subject matter hereof other than as set forth herein. Notwithstanding any
provision herein to the contrary, each of the parties hereto acknowledges and
agrees that the terms and conditions set forth in Article VIII of the Formation
Agreement and the First Refusal Agreement shall survive the execution and
delivery of this Agreement, except to the extent of the sales and issuances of
HBT Common Stock and HBT Preferred Stock as contemplated herein and in the IPO
and, in the event the IPO is closed by December 31, 2000 the Formation Agreement
and the First Refusal Agreement shall be null and void.

                  8.7      TERMINATION. Except as otherwise provided in SECTION
7.1 hereto, this Agreement shall terminate upon the earlier of the closing of
the IPO or the closing of the Alternative Merger; PROVIDED, that, the following
provisions shall survive the Termination of this Agreement: 1.6, 1.8, 6.1, 6.5,
7.1, 7.2, 8.1-8.9.

                  8.8      NO WAIVER. Except as otherwise expressly provided in
this Agreement, neither the failure nor any delay on the part of any party to
exercise any right, power or privilege hereunder or under the Formation
Agreement or the First Refusal Agreement shall operate as a waiver thereof, nor
shall any single or partial exercise or waiver of any such right, power or
privilege preclude any other or further exercise thereof, or the exercise of any
other right, power or privilege available to each party at law or in equity.

                  8.9      SECTION AND PARAGRAPH HEADINGS. The section and
paragraph headings in this Agreement are for reference purposes only and shall
not affect in any way the meaning or interpretation of this Agreement.

                                      -32-

<PAGE>

                  IN WITNESS WHEREOF, the parties hereto have executed this
Agreement as of the date first set forth above.

<TABLE>

<S>                                                  <C>
                                                     HYDROGEN BURNER TECHNOLOGY, INC.

                                                     By    /s/ David Moard
                                                           ------------------------------
                                                           Name: David Moard
                                                           Title: President

         SOFINOV SOCIETE FINANCIERE D'INNOVATION     SOFINOV SOCIETE FINANCIERE D'INNOVATION
         INC.                                        INC.

         By: /s/ [ILLEGIBLE]                         By: /s/ Denis Dionne
             -----------------------------------         ------------------------------
         Name:[ILLEGIBLE]                            Name: Denis Dionne
         Title: Vice President                       Title: President

                                                     SOFICAL INVESTMENT CORP. I

                                                     By    /s/ Denis Dionne
                                                           ------------------------------
                                                           Name: Denis Dionne
                                                           Title: President

                                                     PHOENIX GAS SYSTEMS LLC

                                                     By    /s/ David Moard
                                                           ------------------------------
                                                           Name: David Moard
                                                           Title: President

                                                     PHOENIX HYDROGEN SYSTEMS LLC

                                                     By    /s/ David Moard
                                                           ------------------------------
                                                           Name: David Moard
                                                           Title: President
</TABLE>

                                      -33-

<PAGE>

                  IN WITNESS WHEREOF, each of the Individuals (i) has executed
this Agreement as of the date first set forth above and (ii) acknowledges and
agrees to the Special Power of Attorney set forth in SECTION 6.4 hereof and such
Individual's written consent to the actions described in SECTION 6.5 hereof.

                                                     /s/ Peter Susi
                                                     ---------------------------
                                                     PETER SUSI

STATE OF CALIFORNIA        )
                           ) ss.
COUNTY OF SANTA BARBARA    )

                  On Sept. 7, 2000, before me, Katherine A. Wagemann-Cordero, a
Notary Public in and for the State of California, personally appeared Peter
Susi, personally known to me (or proved to me on the basis of satisfactory
evidence) to be the person whose name is subscribed to the within instrument,
and acknowledged to me that he executed the within instrument in his/her
authorized capacity and that, by his signature on the within instrument, the
person or entity upon behalf of which he acted executed the within instrument.

                  WITNESS my hand and official seal.

                  /s/ Katherine A. Wagemann-Cordero           (Seal)
                  ---------------------------------

                                      -34-

<PAGE>

                  IN WITNESS WHEREOF, each of the Individuals (i) has executed
this Agreement as of the date first set forth above and (ii) acknowledges and
agrees to the Special Power of Attorney set forth in SECTION 6.4 hereof and such
Individual's written consent to the actions described in SECTION 6.5 hereof.

                                                     /s/ Kishor D. Popat
                                                     ---------------------------
                                                     KISHOR D. POPAT

STATE OF CALIFORNIA        )
                           ) ss.
COUNTY OF LOS ANGELES      )

                  On Sept. 15, 2000, before me, Marcel Bloomer, a Notary Public
in and for the State of California, personally appeared Kishor D. Popat,
personally known to me (or proved to me on the basis of satisfactory evidence)
to be the person whose name is subscribed to the within instrument, and
acknowledged to me that he/she executed the within instrument in his/her
authorized capacity and that, by his/her signature on the within instrument, the
person or entity upon behalf of which he/she acted executed the within
instrument.

                  WITNESS my hand and official seal.

                  /s/ Marcel Bloomer            (Seal)
                  ---------------------------

                                                     /s/ Shafali Popat
                                                     ---------------------------
                                                     SHAFALI POPAT

STATE OF CALIFORNIA        )
                           ) ss.
COUNTY OF LOS ANGELES      )

                  On Sept. 12, 2000, before me, R.J. Sainz, a Notary Public in
and for the State of California, personally appeared Shafali Popat, personally
known to me (or proved to me on the basis of satisfactory evidence) to be the
person whose name is subscribed to the within instrument, and acknowledged to me
that he/she executed the within instrument in his/her authorized capacity and
that, by his/her signature on the within instrument, the person or entity upon
behalf of which he/she acted executed the within instrument.

                  WITNESS my hand and official seal.

                  /s/ R.J. Sainz                (Seal)
                  ---------------------------

                                      -35-

<PAGE>

                  IN WITNESS WHEREOF, each of the Individuals (i) has executed
this Agreement as of the date first set forth above and (ii) acknowledges and
agrees to the Special Power of Attorney set forth in SECTION 6.4 hereof and such
Individual's written consent to the actions described in SECTION 6.5 hereof.

                                                     /s/ Robert Okerbloom
                                                     ---------------------------
                                                     ROBERT OKERBLOM

STATE OF CALIFORNIA        )
                           ) ss.
COUNTY OF SANTA BARBARA    )

                  On September 14, 2000, before me, Greg Maxson, a Notary Public
in and for the State of California, personally appeared Robert Okerblom,
personally known to me (or proved to me on the basis of satisfactory evidence)
to be the person whose name is subscribed to the within instrument, and
acknowledged to me that he executed the within instrument in his/her authorized
capacity and that, by his signature on the within instrument, the person or
entity upon behalf of which he acted executed the within instrument.

                  WITNESS my hand and official seal.

                  /s/ Greg Maxson               (Seal)
                  ---------------------------

                                                     /s/ Eileen Okerbloom
                                                     ---------------------------
                                                     EILEEN OKERBLOM

STATE OF CALIFORNIA        )
                           ) ss.
COUNTY OF SANTA BARBARA    )

                  On September 14, 2000, before me, Greg Maxson, a Notary Public
in and for the State of California, personally appeared Eileen Okerblom,
personally known to me (or proved to me on the basis of satisfactory evidence)
to be the person whose name is subscribed to the within instrument, and
acknowledged to me that he executed the within instrument in his/her authorized
capacity and that, by his signature on the within instrument, the person or
entity upon behalf of which he acted executed the within instrument.

                  WITNESS my hand and official seal.

                  /s/ Greg Maxson               (Seal)
                  ---------------------------

                                      -36-

<PAGE>

                  IN WITNESS WHEREOF, each of the Individuals (i) has executed
this Agreement as of the date first set forth above and (ii) acknowledges and
agrees to the Special Power of Attorney set forth in SECTION 6.4 hereof and such
Individual's written consent to the actions described in SECTION 6.5 hereof.

                                                     /s/ James Goffi
                                                     ---------------------------
                                                     JIM GOFFI

STATE OF MISSIPPI          )
                           ) ss.
COUNTY OF WAYNE            )

                  On Sept. 7, 2000, before me, Franki Evans a Notary Public in
and for the State of Missippi, personally appeared Jim Goffi, personally known
to me (or proved to me on the basis of satisfactory evidence) to be the person
whose name is subscribed to the within instrument, and acknowledged to me that
he executed the within instrument in his/her authorized capacity and that, by
his signature on the within instrument, the person or entity upon behalf of
which he acted executed the within instrument.

                  WITNESS my hand and official seal.

                  /s/ Franki Evans              (Seal)
                  ---------------------------

                                                     /s/ Dawn S. Goffi
                                                     ---------------------------
                                                     DAWN GOFFI

STATE OF MISSIPPI          )
                           ) ss.
COUNTY OF WAYNE            )

                  On 8th Sept., 2000, before me, Frankie Evans, a Notary Public
in and for the State of Missippi, personally appeared Dawn Goffi, personally
known to me (or proved to me on the basis of satisfactory evidence) to be the
person whose name is subscribed to the within instrument, and acknowledged to me
that he executed the within instrument in his/her authorized capacity and that,
by his signature on the within instrument, the person or entity upon behalf of
which he acted executed the within instrument.

                  WITNESS my hand and official seal.

                  /s/ Frankie Evans             (Seal)

                                      -37-

<PAGE>

                  IN WITNESS WHEREOF, each of the Individuals (i) has executed
this Agreement as of the date first set forth above and (ii) acknowledges and
agrees to the Special Power of Attorney set forth in SECTION 6.4 hereof and such
Individual's written consent to the actions described in SECTION 6.5 hereof.

                                                     /s/ Frederick Green
                                                     ---------------------------
                                                     FREDERICK GREEN

STATE OF OREGON            )
                           ) ss.
COUNTY OF LOS ANGELES      )

                  On Sept. 7, 2000, before me, Evelyn Taylor, a Notary Public in
and for the State of Oregon, personally appeared Frederick Green, personally
known to me (or proved to me on the basis of satisfactory evidence) to be the
person whose name is subscribed to the within instrument, and acknowledged to me
that he executed the within instrument in his/her authorized capacity and that,
by his signature on the within instrument, the person or entity upon behalf of
which he acted executed the within instrument.

                  WITNESS my hand and official seal.

                  /s/ Evelyn Taylor             (Seal)
                  ---------------------------

                                      -38-

<PAGE>

                  IN WITNESS WHEREOF, each of the Individuals (i) has executed
this Agreement as of the date first set forth above and (ii) acknowledges and
agrees to the Special Power of Attorney set forth in SECTION 6.4 hereof and such
Individual's written consent to the actions described in SECTION 6.5 hereof.

                                                     /s/ Bruce Hogan
                                                     ---------------------------
                                                     BRUCE HOGAN

STATE OF CALIFORNIA        )
                           ) ss.
COUNTY OF SANTA BARBARA    )

                  On Sept. 8, 2000, before me, Ginny Good, a Notary Public in
and for the State of California, personally appeared Bruce Hogan, personally
known to me (or proved to me on the basis of satisfactory evidence) to be the
person whose name is subscribed to the within instrument, and acknowledged to me
that he executed the within instrument in his/her authorized capacity and that,
by his signature on the within instrument, the person or entity upon behalf of
which he acted executed the within instrument.

                  WITNESS my hand and official seal.

                  /s/ Ginny Good                (Seal)
                  ---------------------------

                                      -39-

<PAGE>

                  IN WITNESS WHEREOF, each of the Individuals (i) has executed
this Agreement as of the date first set forth above and (ii) acknowledges and
agrees to the Special Power of Attorney set forth in SECTION 6.4 hereof and such
Individual's written consent to the actions described in SECTION 6.5 hereof.

                                                     /s/ Edwin Moore
                                                     ---------------------------
                                                     EDWIN MOORE

STATE OF CALIFORNIA        )
                           ) ss.
COUNTY OF SANTA BARBARA    )

                  On Sept. 11, 2000, before me, Susan Anderson Yates, a Notary
Public in and for the State of California, personally appeared Edwin Moore,
personally known to me (or proved to me on the basis of satisfactory evidence)
to be the person whose name is subscribed to the within instrument, and
acknowledged to me that he executed the within instrument in his/her authorized
capacity and that, by his signature on the within instrument, the person or
entity upon behalf of which he acted executed the within instrument.

                  WITNESS my hand and official seal.

                  /s/ Susan Anderson Yates      (Seal)
                  ---------------------------

                                      -40-

<PAGE>

                 HYDROGEN BURNER TECHNOLOGY, INC. REORGANIZATION

                                INDEX OF EXHIBITS

EXHIBIT A                  Articles of Incorporation

EXHIBIT B                  By-Laws

EXHIBIT C                  Reorganization Agreement

EXHIBIT D                  Approval Certificates

EXHIBIT E                  Agreement of Merger

EXHIBIT F                  Rights and Preferences

EXHIBIT G                  Alternative Agreement of Merger

EXHIBIT H                  Investor Rights Agreement

<PAGE>

                                    EXHIBIT A

                            ARTICLES OF INCORPORATION

                                   [ATTACHED]

<PAGE>

                            ARTICLES OF INCORPORATION
                                       OF
                         PHOENIX HYDROGEN SYSTEMS, INC.

                                       I.

                  The name of the Corporation shall be:

                         Phoenix Hydrogen Systems, Inc.

                                       II.

                  The purpose of the Corporation is to engage in any lawful act
or activity for which a corporation may be organized under the General
Corporation Law of California other than the banking business, the trust company
business or the practice of a profession permitted to be incorporated by the
California Corporations Code.

                                      III.

                  The name in this state of the Corporation's initial agent for
service of process in accordance with subdivision (b) of Section 1502 of the
General Corporation Law is:

                        National Registered Agents, Inc.

                                       IV.

                  The Corporation is authorized to issue only one class of
shares, which shall be common stock without par value, and the total number of
shares of common stock which the Corporation is authorized to issue is fourteen
million, two hundred fifteen thousand, three hundred twenty-seven (14,215,327).

                                       V.

                  SECTION 1. ELIMINATION OF DIRECTORS' LIABILITY. The liability
of the directors of the Corporation for monetary damages shall be eliminated to
the fullest extent permissible under California law.

                  SECTION 2. INDEMNIFICATION OF CORPORATE AGENTS. The
Corporation is authorized to provide indemnification of agents (as defined in
Section 317 of the California General Corporation Law) through bylaw provisions,
agreements with agents, vote of shareholders or disinterested directors or
otherwise, in excess of the indemnification otherwise permitted by Section 317
of the California General Corporation Law, subject only to the applicable limits
set forth in Section 204 of the California General Corporation Law with respect
to actions for breach of duty to the Corporation and its shareholders.

                  SECTION 3. REPEAL OR MODIFICATION. Any repeal or modification
of the foregoing provisions of this Article V by the shareholders of the
Corporation shall not adversely affect any

                                      -2-

<PAGE>

right or protection of an agent of the Corporation existing at the time of that
repeal or modification.

                  IN WITNESS WHEREOF, the undersigned Incorporator has executed
the foregoing Articles of Incorporation on September 20, 2000.

                                      By:
                                         ---------------------------------------
                                         Kevin F. Donnelly, Incorporator

                                    EXHIBIT B

                                    BY-LAWS

                                   [ATTACHED]

                                      -3-

<PAGE>

                                     BYLAWS

                                       OF

                         PHOENIX HYDROGEN SYSTEMS, INC.

                           (A CALIFORNIA CORPORATION)

                                       1

<PAGE>

                                     BYLAWS

                                       OF

                         PHOENIX HYDROGEN SYSTEMS, INC.
                           (A CALIFORNIA CORPORATION)

                                    ARTICLE I

                                  APPLICABILITY

                  SECTION 1. APPLICABILITY OF BYLAWS. These Bylaws govern,
except as otherwise provided by statute or its Articles of Incorporation, the
management of the business and the conduct of the affairs of Phoenix Hydrogen
Systems, Inc. (the "Corporation").

                                   ARTICLE II

                                     OFFICES

                  SECTION 1. PRINCIPAL OFFICES. The principal executive office
of the Corporation shall be at 19300 Susana Road, Rancho Dominguez, California
90221 (Los Angeles County), or such other place or places as may be determined
by the shareholders from time to time.

                  SECTION 2. CHANGE IN LOCATION OR NUMBER OF OFFICES. The board
of directors may change any office from one location to another or eliminate any
office or offices.

                                   ARTICLE III

                            MEETINGS OF SHAREHOLDERS

                  SECTION 1. PLACE OF MEETINGS. Meetings of the shareholders
shall be held at any place within or without the State of California designated
by the board of directors.

                  SECTION 2. ANNUAL MEETINGS. An annual meeting of the
shareholders shall be held each year on a date and at a time designated by the
board of directors.

                  SECTION 3. SPECIAL MEETINGS.

                           (a)      Special meetings of the shareholders may be
called by the board of directors, the Chief Executive Officer or by the
shareholders upon the request of the holders of shares entitled to cast not less
than 10 percent of the votes at such meeting.

                                       1

<PAGE>

                           (b)      Any request for the calling of a special
meeting of the shareholders shall (1) be in writing, (2) specify the date and
time thereof, which date shall be not less than 30 nor more than 60 days after
receipt of the request, (3) specify the general nature of the business to be
transacted thereat and (4) be given either personally or by first class mail,
postage prepaid, or other means of written communication to the Chief Executive
Officer or Secretary of the Corporation. The officer receiving a proper request
to call a special meeting of the shareholders shall cause notice to be given
pursuant to the provisions of Section 4 of this Article II to the shareholders
entitled to vote thereat that a meeting will be held at the date and time
specified by the person or persons calling the meeting. If notice is not given
within 20 days of the receipt of the request, the shareholders making the
request may give notice of such meeting so long as the notice given complies
with the other provisions of this subsection.

                           (c)      No business may be transacted at a special
meeting unless the general nature thereof was stated in the notice of such
meeting.

                  SECTION 4. NOTICE OF ANNUAL, SPECIAL OR ADJOURNED MEETINGS.

                           (a)      Whenever any meeting of the shareholders is
to be held, a written notice of such meeting shall be given in the manner
described in subdivision (d) of this section not less than 10 nor more than 60
days before the date thereof to each shareholder entitled to vote thereat. The
notice shall state the place, date and hour of the meeting and (1) in the case
of a special meeting, the general nature of the business to be transacted or (2)
in the case of the annual meeting, those matters which the board of directors,
at the time of the giving of the notice, intends to present for action by the
shareholders. The notice of any meeting at which directors are to be elected
shall include the name of any nominee or nominees who, at the time of the
notice, management intends to present for election.

                           (b)      Any proper matter may be presented at an
annual meeting for action. However, any action to approve (1) a contract or
transaction in which a director has a direct or indirect financial interest
under Section 310 of the California Corporations Code, (2) an amendment of the
articles of incorporation under Section 902 of that code, (3) a reorganization
of the corporation, under Section 1201 of that code, (4) a voluntary dissolution
of the corporation under Section 1900 of that code, or (5) a distribution in
dissolution other than in accordance with the rights of outstanding preferred
shares under Section 2007 of that code may be taken only if the notice of the
meeting states the general nature of the matter to be approved.

                           (c)      Notice need not be given of an adjourned
meeting if the time and place thereof are announced at the meeting at which the
adjournment is taken, except that if the adjournment is for more than 45 days or
if after the adjournment a new record date is provided for the adjourned
meeting, a notice of the adjourned meeting shall be given to each shareholder of
record entitled to vote at that meeting.

                                       2

<PAGE>

                           (d)      Notice of any meeting of the shareholders
shall be given personally, by first class mail, or by telegraph, facsimile
transmission or other written communication, addressed to the shareholder at his
address appearing on the books of the Corporation or given by him to the
Corporation for the purpose of notice; or if no such address appears or is
given, at the place where the principal executive office of the Corporation is
located or by publication at least once in a newspaper of general circulation in
the county in which the principal executive office is located. Notice shall be
deemed to have been given at the time when delivered personally to the
recipient, deposited in the mail, delivered to a common carrier for transmission
to the recipient or sent by other means of written communication. An affidavit
of the mailing or other means of giving notice may be executed by the Secretary,
assistant secretary or any transfer agent of the Corporation giving the notice
and shall be PRIMA FACIE evidence of the giving of the notice. Such affidavits
shall be filed and maintained in the minute books of the Corporation.

                           (e)      If any notice or report addressed to the
shareholder at his address appearing on the books of the Corporation is returned
to the Corporation by the United States Postal Service marked to indicate that
the United States Postal Service is unable to deliver the notice or report to
the shareholder at such address, all future notices or reports shall be deemed
to have been duly given without further mailing if the same shall be available
for the shareholder upon his written demand at the principal executive office of
the Corporation for a period of one year from the date of the giving of the
notice or report to all other shareholders.

                  SECTION 5. RECORD DATE. The record date for determining the
shareholders entitled to notice of any meeting, to vote, to receive payment of
any dividend or other distribution or allotment of any rights or to exercise any
rights in respect of any other lawful action, shall be the date set by the board
of directors, provided that such record date shall not be more than 60, nor less
than 10, days prior to the date of the meeting, nor more than 60 days prior to
any other action. In the absence of any action setting a record date, the record
date shall be determined in accordance with California General Corporations Law.

                  SECTION 6. QUORUM.

                           (a)      A majority of the shares entitled to vote at
a meeting of the shareholders, represented in person or by proxy, shall
constitute a quorum for the transaction of business thereat.

                           (b)      The shareholders present at a duly called or
held meeting at which a quorum is present may continue to transact business
until adjournment notwithstanding the withdrawal of enough shareholders to leave
less than a quorum, if any action taken (other than adjournment) is approved by
at least a majority of the shares required to constitute a quorum.

                                       3

<PAGE>

                  SECTION 7. PROCEDURE FOR VOTING GENERALLY. At all shareholder
meetings, a shareholder may vote in person or by proxy. Such proxy shall be
filed by any shareholder with the Secretary of the Corporation or with any
director, other than the representative of such shareholders, before or at the
time of the meeting, and may be filed by facsimile transmission to a director at
the principal executive office of the Corporation or at such other address as
the board of directors may select from time to time.

                  SECTION 8. VOTING FOR ELECTION OF DIRECTORS.

                           (a)      At the initiative of a majority of the
shareholders, the directors then in office shall resign effective upon the date
of the election of the new board of directors, and new directors shall be
elected by the shareholders, who shall vote on a cumulative basis (as described
in section 708 of the California General Corporations Law), proportionate to
each shareholder's share ownership, provided, however that so long as Sofinov
owns any shares of the Corporation's common stock, Sofinov shall be permitted to
designate no less than one (1) director. In calculating the representation of
Sofinov on the board, if the number of directors elected by Sofinov alone
exceeds 1.5 on a cumulative basis, then such fraction shall be rounded up to the
next highest whole number.

                           (b)      Nominations of new directors by the
shareholders shall be made at least 20 days prior to the annual meeting of the
shareholders. A notice sent to each of the other shareholders at least 15 days
before the annual meeting shall identify the name, address and telephone number
of the person or persons nominated by a shareholder to act as director(s), and
the percentage of voting shares owned by such shareholder. At the annual
meeting, in voting for directors on the basis of such nomination, each
shareholder shall exercise its cumulative voting rights, discussed in
subdivision (e) of this section.

                           (c)      Except as provided in subdivision (e) of
this section, the affirmative vote of the majority of the shares represented and
voting at a duly held meeting at which a quorum is present (which shares voting
affirmatively also constitute at least a majority of the required quorum) shall
be the act of the shareholders, unless the vote of a greater number is required
by law or the Articles of Incorporation.

                           (d)      Every shareholder complying with subdivision
(e) of this section and entitled to vote at any election of directors may
cumulate his votes and give one candidate a number of votes equal to the number
of directors to be elected multiplied by the number of votes to which his shares
are normally entitled, or distribute his votes on the same principle among as
many candidates as he thinks fit.

                           (e)      No shareholder shall be entitled to cumulate
his votes (i.e., cast for any candidate a number of votes greater than the
number of votes which such shareholder normally is entitled to cast) unless the
candidate's or candidates' names for which he desires to

                                       4

<PAGE>

cumulate his votes have been placed in nomination prior to the voting and the
shareholder has given notice at the meeting prior to the voting of his intention
to cumulate his votes. If any one shareholder has given such notice, all
shareholders may cumulate their votes for candidates in nomination.

                           (f)      Elections for directors may be by voice vote
or by ballot unless any shareholder entitled to vote demands election by ballot
at the meeting prior to the voting, in which case the vote shall be by ballot.

                           (g)      In any election of directors, the candidates
receiving the highest number of affirmative votes of the shares entitled to be
voted for them up to the number of directors to be elected by such shares are
elected as directors.

                  SECTION 9. ADJOURNMENT. Any meeting of the shareholders may be
adjourned from time to time whether or not a quorum is present by the vote of a
majority of the shares represented thereat either in person or by proxy. At the
adjourned meeting the Corporation may transact any business which might have
been transacted at the original meeting.

                  SECTION 10. VALIDATION OF ACTIONS TAKEN AT DEFECTIVELY CALLED,
NOTICED OR HELD MEETINGS.

                           (a)      The transactions of any meeting of the
shareholders, however called and noticed, and wherever held, are as valid as
though had at a meeting duly held after regular call and notice, if a quorum is
present either in person or by proxy, and if, either before or after the
meeting, each of the persons entitled to vote thereat, not present in person or
by proxy, signs a written waiver of notice or a consent to the holding of the
meeting or an approval of the minutes thereof. Any written waiver of notice
shall comply with subdivision (f) of Section 601 of the California General
Corporations Law. All such waivers, consents and approvals shall be filed with
the corporate records or made a part of the minutes of the meeting.

                           (b)      Attendance of a person at a meeting shall
constitute a waiver of notice of and presence at such meeting, except (1) when
the person objects, at the beginning of the meeting, to the transaction of any
business because the meeting is not lawfully called or convened and (2) that
attendance at a meeting is not a waiver of any right to object to the
consideration of any matter required by the California General Corporations Law
to be included in the notice but not so included, if such objection is expressly
made at the meeting.

                  SECTION 11. INSPECTORS OF ELECTION.

                           (a)      In advance of any meeting of the
shareholders, the board of directors may appoint either one or three persons
(other than nominees for the office of director) as inspectors of election to
act at such meeting or any adjournments thereof. If inspectors of election are
not so appointed, or if any person so appointed fails to appear or refuses to
act, the

                                       5

<PAGE>

chairman of any such meeting may, and on the request of any shareholder or his
proxy shall, appoint inspectors of election (or persons to replace those who so
fail or refuse to act) at the meeting. If appointed at a meeting on the request
of one or more shareholders or the proxies thereof, the majority of shares
represented in person or by proxy shall determine whether one or three
inspectors are to be appointed.

                           (b)      The duties of inspectors of election and the
manner of performance thereof shall be as prescribed in subdivisions (b) and (c)
of Section 707 of the California Corporations Code.

                  SECTION 12. ACTION BY WRITTEN CONSENT. Any action that may be
taken at a meeting of the shareholders may be taken without a meeting, if a
consent in writing setting forth the action so taken, is signed and delivered to
the Corporation within sixty (60) days after the date of that action by the
holders of outstanding shares having not less than the minimum number of votes
which would be necessary to authorize or take such action at a meeting at which
all shares entitled to vote thereon were present and voted. All such consents
shall be filed with the Secretary of the Corporation and maintained with the
corporate records. Any shareholder giving a written consent may revoke the
consent by a writing receive by the board or the Secretary of the Corporation
before the vote is counted.

                                   ARTICLE IV

                                    DIRECTORS

                  SECTION 1. BOARD COMPOSITION AND POWER. The Corporation shall
have nine (9) directors (the "Directors"), who shall collectively constitute the
board of directors ("Board"). Except for the day-to-day operations of the
business of the Corporation, the business, property and affairs of the
Corporation shall be managed exclusively by the Board. Except for situations in
which the approval of the shareholders is expressly required by other provisions
of these bylaws, the Board shall have full, complete and exclusive authority,
power and discretion to manage and control the business, property and affairs of
the Corporation, to make all decisions regarding those matters and to perform
any and all other acts or activities customary or incident to the management of
the Corporation's business, property and affairs.

                  SECTION 2. ELECTION OF DIRECTORS. Directors shall be elected
at each annual meeting of the shareholders; provided that, so long as Sofinov
holds shares of common stock in the Coporation, Sofinov shall have the right to
designate two (2) members of the Board.

                  SECTION 3. TERM OF OFFICE. Each Director, including a Director
elected to fill a vacancy, shall hold office until the expiration of the term
for which he is elected and until a successor has been elected, and qualified.

                                       6

<PAGE>

                  SECTION 4. VACANCIES.

                           (a)      A vacancy in the Board exists whenever any
authorized position of Director is not then filled by a duly elected Director,
whether caused by death, resignation, removal, change in the authorized number
of Directors or otherwise.

                           (b)      In the event of a vacancy, a new Director
shall be elected by the shareholder(s) whose cumulative votes elected the
vacating Director. Such election shall take place at the next meeting of
shareholders or by consent in writing by the electing shareholder(s).

                  SECTION 5. REMOVAL. Subject the rights, if any, of a Director
under contract of employment, any Director may be removed, either with or
without cause, by the Board at any time.

                  SECTION 6. RESIGNATION. Any Director may resign effective upon
giving written notice to the Board. Any resignation shall take effect at the
date of the receipt of that notice or at any later time specified in that
notice' and, unless otherwise specified in that notice, and the acceptance of
the resignation shall not be necessary to make it effective. Any resignation is
without prejudice to the rights, if any, of the Corporation under any contract
to which the Director is a party.

                  SECTION 7. FEES AND COMPENSATION. The Directors, as such,
shall not be entitled to compensation for their services. Notwithstanding the
foregoing, the Corporation shall reimburse the reasonable travel expenses (but
not first class airfares) incurred by each Director who is not also involved in
the day-to-day management of the Corporation in connection with attending one
(1) meeting of the board every three (3) months. The Corporation shall not
reimburse any travel expenses incurred in connection with attending meetings
other than as herein provided.

                                    ARTICLE V

                      COMMITTEES OF THE BOARD OF DIRECTORS

                  SECTION 1. DESIGNATION OF COMMITTEES. The Board may, by
resolution adopted by a majority of the authorized number of Directors,
designate (1) one or more committees, each consisting of two or more Directors
and (2) one or more Directors as alternate members of any committee, who may
replace any absent member at any meeting thereof. Any member or alternate member
of a committee shall serve at the pleasure of the Board.

                  SECTION 2. POWERS OF COMMITTEES. Any committee, to the extent
provided in the resolution of the Board designating such committee, shall have
all the authority of the Board, except with respect to:

                                       7

<PAGE>

                           (a)      The approval of any action for which the
California General Corporations Law also requires any action by the
shareholders;

                           (b)      The filling of vacancies on the Board or in
any committee thereof;

                           (c)      The fixing of compensation of the Directors
for serving on the Board or on any committee thereof;

                           (d)      The amendment or repeal of these bylaws or
the adoption of new bylaws;

                           (e)      The amendment or repeal of any resolution of
the Board which by its express terms is not so amendable or repealable;

                           (f)      A distribution to the shareholders of the
Corporation, except at a rate or in a periodic amount or within a price range
determined by the Board of Directors; or

                           (g)      The designation of other committees of the
Board or the appointment of members or alternate members thereof.

                                   ARTICLE VI

            MEETINGS OF THE BOARD OF DIRECTORS AND COMMITTEES THEREOF

                  SECTION 1. MEETINGS.

                  (a)      Regular meetings of the Board shall be held at any
place within or without the State of California which has been designated from
time to time by the Board or, in the absence of such designation, at the
principal executive office of the Corporation. Special meetings of the Board
shall be held either at any place within or without the State of California
which has been designated in the notice of meeting or, if not stated in the
notice or if there is no notice, at the principal executive office of the
Corporation.

                  (b)      Other than in connection with the formal meetings
described in the last sentence of this subdivision (b), the Board is not
required to physically meet, and decision may be reached after notice to all
Directors through one or more telephonic meetings, as permitted by the
California General Corporations Law, which shall be documented in the minutes of
such meetings, followed by written approval by a majority of the Directors
(subject to the provisions section 2 hereof), provided that all Directors are
consulted (although all Directors need not be present during a particular
discussion), or by a written consent signed by a majority of the Directors
(subject to the provisions of section 2 hereof). Notwithstanding the foregoing,
the

                                       8

<PAGE>

board shall hold no less than two (2) meetings in any calendar year for which
the following procedures shall apply:

                  (c)      The Chief Executive Officer or any Director may call
a meeting of the board by giving notice by mail, delivered personally, by
telephone, or facsimile, of the time to all Directors at least 5 days prior to
the time of the holding of the meeting. The notice should specify the nature of
the purpose of the meeting.

                  (d)      The physical presence of a majority of Directors
shall constitute a quorum for the transaction of business at any meeting of the
board, provided that at least one Director selected by Sofinov shall be
physically present (unless this requirement has been waived by Sofinov by prior
notice to the Chief Executive Officer). In the absence of a quorum in accordance
with the preceding sentence, the majority of the Directors present may vote to
adjourn the meeting, but no other business may be transacted. Upon due notice of
the adjourned meeting, the physical presence of a majority of Directors shall
constitute a quorum for the transaction of business without the physical
presence of a Sofinov representative being required. If a quorum is present in
accordance with the preceding sentences, a majority of those present in person
or by telephone may, subject to section 2 hereof, authorize or approve actions
of the Corporation, either before or after action is taken.

                  (e)      Notwithstanding anything to the contrary provided
herein, but subject to section 2 hereof, transactions of the Directors at any
meeting, however called or noticed, or wherever held, shall be as valid as
though transacted at a meeting duly held after call and notice of a majority of
the Directors are present and if, either before or after the meeting, each
manager not present and having received no notice signs a written waiver of
notice, a consent to the holding of the meeting, or an approval of the meeting.

                  (f)      Subject to section 2 hereof, any action required or
permitted to be taken by the board hereunder may be taken without a meeting if
all Directors are advised of the action taken or to be taken and if a majority
of the Directors, individually or collectively, consent in writing to such
action, either before or after the action is taken.

                  (g)      Subject to subdivision (b) hereof, Directors may
participate in the meeting through the use of a conference telephone or similar
communications equipment, provided that all Directors participating in the
meeting can hear one another.

                  (f)      The Secretary shall keep or cause to be kept with the
books and records of the Corporation full and accurate minutes of all meetings,
notices and waivers of notices of meetings, and all written consents or
approvals in lieu of meetings.

                  SECTION 2. WEIGHTED MAJORITY PROVISIONS. The affirmative vote
of more than 50% of the board, and the affirmative vote of more than 50% of the
shareholders shall be required to

                                       9

<PAGE>

approve each of the following actions (provided, however, that so long as
Sofinov holds at least 30% of the outstanding common stock of the Corporation,
Sofinov, as a shareholder, and the representative(s) of Sofinov in his/her
position(s) on the board, must approve each of the following actions):

                  (a)      Any changes to the fundamental nature of the
Corporation or the business carried on by it;

                  (b)      The transfer or other disposition of all or any
substantial portion of the assets of the Corporation or any portion of its
interests in another company;

                  (c)      The acquisition of an interest in any other
corporation, partnership, firm or business;

                  (d)      Any agreement, or modification of an existing
agreement, relating to dealings between the Corporation and any of its
shareholders or Directors, or affiliates of such shareholders or Directors;

                  (e)      The issuance of any shares of capital stock, or any
debt obligations or other instruments convertible into capital stock of the
Corporation, or the redemption of any outstanding capital stock of the
Corporation;

                  (f)      Any changes in the charter documents of the
Corporation;

                  (g)      Any assignment by the Corporation for the benefit of
its creditors or the voluntary filing by the Corporation of any plan of
reorganization;

                  (h)      The annual operating and capital expenditure budget
for the Corporation;

                  (i)      The annual business plan for the Corporation;

                  (j)      The borrowing of any money or other incurrence of
debt by the Corporation in excess of $100,000; and

                  (k)      The voluntary creation of any lien against any of the
assets of the Corporation.

                                   ARTICLE VII

                                    OFFICERS

                  SECTION 1. OFFICERS. Immediately after the meeting of
shareholders called to elect the directors, the Board shall appoint a Chief
Executive Officer ("CEO") to manage the day-to-day operations of the business of
the Corporation. The Board shall also appoint a Chief

                                       10

<PAGE>

Financial Officer ("CFO"), and a Secretary, each of whom shall hold office at
the discretion of the Board. A person may hold tow or more offices, provided
that the CEO and Secretary may not be the same person. The Board shall determine
the duties and responsibilities of the officers other than the CEO.

                  SECTION 2. POWERS AND DUTIES OF CEO. Subject to the
supervisory powers, if any, as may given by the Board to its chairperson, if
there be such, and also subject to the provision of Article VI, Section 2
hereof, the CEO shall, subject to the control of the Board, have general and
active management of the business of the Corporation and shall see that all
orders and resolutions of the shareholders (to the extent that the shareholders
are authorized to vote on issues, make resolutions and orders) and the Board are
carried into effect. He or she shall have the general powers and duties of
management usually vested in the officer of president of a corporation and shall
have such other powers and duties as may be prescribed by the Board or these
bylaws.

                  Subject to the provisions of Article VI, Section 2 hereof, the
CEO shall have authority to (i) execute and enter into all contract involving
the ordinary course of business of the Corporation, including bonds, mortgages,
and similar contracts, except where the signing and execution thereof shall be
expressly delegated by the Board to some other officer or agent of the
Corporation; an d(ii) to set salaries or any other emoluments to be paid to any
of the officer and other employees of the Corporation; provided that, the CEO
shall, in good faith, advise, consult with and request the non-binding
recommendation of Sofinov and thereafter obtain the approval of the Board, with
respect to the following actions:

                  (a)      The granting of any exclusive territories,
applications or other rights with respect to all or any portion of the UOB-TM-
Technology or any field of use;

                  (b)      The contract terms on which key employees of the
Corporation are hired, including, without limitation, salary range and length of
contract.

                  SECTION 3. POWERS AND DUTIES OF SECRETARY.

                           (a)      The Secretary shall keep or cause to be kept
(i) the minute book; (ii) the share register and (iii) the seal, if any, of the
Corporation.

                           (b)      The Secretary, an assistant secretary, or,
if they are absent or unable to act, any other officer shall give, or cause to
be given, notice of all meetings of the shareholders and of the Board required
by these bylaws or by law to be given, and shall have such other powers and
perform such other duties as may be prescribed from time to time by the Board or
any committee of the Board.

                  SECTION 4. POWERS AND DUTIES OF CFO.

                                       11

<PAGE>

                           (a)      The CFO shall keep, or cause to be kept, the
books and records of account of the Corporation.

                           (b)      The CFO shall deposit all monies and other
valuables in the name and to the credit of the Corporation with such
depositories as may be designated from time to time by resolution of the Board.
He shall disburse the funds of the Corporation as may be ordered by the Board,
shall render to the President and the Board, whenever they request it, an
account of all of his transactions as CFO and of the financial condition of the
Corporation, and shall have such other powers and perform such other duties as
may be prescribed from time to time by the Board or as the President may from
time to time delegate.

                  SECTION 5. REMOVAL, RESIGNATION AND VACANCY OF OFFICES.
Subject to Article VI, Section 2 hereof, and the rights, if any, of an officer
under contract of employment, any officer may be removed, either with or without
cause, by the Board at any time.

                           Any officer may resign effective upon giving written
notice to the Board. Any resignation shall take effect at the date of the
receipt of that notice or at any later time specified in that notice' and,
unless otherwise specified in that notice, and the acceptance of the resignation
shall not be necessary to make it effective. Any resignation is without
prejudice to the rights, if any, of the Corporation under any contract to which
the officer is a party.

                  A vacancy in any office because of death, resignation,
removal, disqualification or any other cause shall be filled in the manner
prescribed in these bylaws for regular appointments to that office.

                                  ARTICLE VIII

                               RECORDS AND REPORTS

                  SECTION 1. MINUTE BOOK. The Corporation shall keep or cause to
be kept in written form at its principal executive office or such other place as
the Board of Directors may order, a minute book which shall contain a record of
all actions by its shareholders, Board or committees of the Board including the
time, date and place of each meeting; whether a meeting is regular or special
and, if special, how called; the manner of giving notice of each meeting and a
copy thereof; the names of those present at each meeting of the Board or
committees thereof; the number of shares present or represented at each meeting
of the shareholders; the proceedings of all meetings; any written waivers of
notice, consents to the holding of a meeting or approvals of the minutes
thereof; and written consents for action without a meeting.

                  SECTION 2. SHARE REGISTER. The Corporation shall keep or cause
to be kept at its principal executive office or, if so provided by resolution of
the Board of Directors, at the Corporation's transfer agent or registrar, a
share register, or a duplicate share register, which

                                       12

<PAGE>

shall contain the names of the shareholders and their addresses, the number and
classes of shares held by each, the number and date of certificates issued for
the same and the number and date of cancellation of every certificate
surrendered for cancellation.

                  SECTION 3. BOOKS AND RECORDS OF ACCOUNT. Complete books of
account of the Corporation's business, in which each corporate transaction shall
be fully and accurately entered, shall be kept at the Corporation's principal
executive office or such other place as the Board of Directors may order and
shall be open to inspection and copying by each shareholder or the shareholder's
authorized representative for purposes reasonably related to the interest of
such shareholder on reasonable notice during normal business hours. The costs of
such inspection and copying shall be borne by the shareholder. Such records
shall be confidential and shall not be disclosed to any third party.

                  SECTION 4. MAINTENANCE OF BOOKS. (a) Financial books and
records of the Corporation shall be kept on the accrual or cash method of
accounting (as the Board shall determine, in its sole discretion, based on which
method is in the best interests of the Corporation), in accordance with
generally accepted accounting principles in the United States, consistently
applied, which shall be the method of accounting followed by the Corporation for
federal and state reporting and income tax purposes. A balance sheet and profit
and loss statement of the Corporation shall be prepared promptly following the
close of each fiscal year in a manner appropriate to and adequate for the
Corporation's business and for the carrying out on the provisions of these
bylaws. The fiscal year of the Corporation shall be the calendar year from
January 1 through December 31. The Corporation's financial records shall be
audited each year by a nationally recognized accounting firm acceptable to a
majority of the shareholders.

                  (b)      The Corporation shall:

                           (1)      Ninety (90) days following the end of its
fiscal year, provide, without cost, to each shareholder, consolidated and
non-consolidated financial statements which shall have been audited (unless,
with respect to any subsidiary, the Directors have not required that its annual
financial statements be audited) by the auditors of the Corporation;

                           (2)      Sixty (60) days following the end of each of
the quarters in its fiscal year, provide, without cost, to each shareholder,
unaudited quarterly financial statements, consolidated and non-consolidated,
certified to be true and correct by the CFO or most senior officer of the
Corporation, as well as management reports signed by the CEO of the Corporation;

                           (3)      Thirty (30) days preceding the end of any
fiscal year, provide, without cost, to each shareholder, a detailed capital
expenditure, operating and research and development budget for the Corporation
and any subsidiary (unless, with respect to any subsidiary, the Directors have
not required it to prepare any one or more of such budgets) covering all of the
next fiscal year;

                                       13

<PAGE>

                           (4)      Without cost, provide, upon demand, to each
shareholder any other information which the latter may, from time to time,
reasonably require;

                  (c)      The same obligations as those provided for in
subdivision (b) hereof shall apply to any subsidiary of the Corporation
(except to the extent that the Board has waived any such requirement pursuant
to subdivisions (b)(1) and/or (b)(3) hereof);

                  SECTION 5. RETENTION OF RECORDS. The Board shall keep or cause
to be kept the books of account referred to above, and the following:

                  (a)      A current list of the full name and last known
business or residence address and telephone number of each shareholder;

                  (b)      A copy of the Articles of Incorporation, and any
amendments thereto, together with executed copies of any powers of attorney
pursuant to which the Articles or any amendments thereto have been executed;

                  (c)      Copies of the Corporation's federal, state and
local income tax or information returns and reports, if any, for the four
most recent taxable years;

                  (d)      Financial statements of the Corporation for the
four most recent fiscal years; and

                  (e)      The books and records of the Corporation as they
relate to the Corporation's internal affairs for the current and past four
fiscal years.

                  SECTION 6. INCOME TAX FILINGS. The Board, at company expense,
shall cause the income tax returns for the Corporation to be prepared and timely
filed with the appropriate authorities.

                  SECTION 7. ACCOUNTING DECISIONS AND RELIANCE ON OTHERS. All
decisions as to accounting matters, except as otherwise specifically set forth
herein, shall be made by the Board. The Board may rely upon the advice of its
accountants as to whether such decisions are in accordance with accounting
methods followed for federal income tax purposes.

                  SECTION 8. TITLE TO CORPORATION ASSETS. All of the assets of
the Corporation, whether real or personal, shall be held in the Corporation.

                  SECTION 9. BANK ACCOUNTS. All funds of the Corporation shall
be deposited in one or more accounts with one or more recognized financial
institutions in the name of the Corporation, at such locations as shall be
determined by the Board. Withdrawal from such accounts shall require the
signature of such person or persons as the Board may designate.

                                       14

<PAGE>

                  SECTION 10. INSURANCE. The Board shall obtain for the
Corporation insurance against such risks and in such amounts deemed appropriate
by the Board. In all events the Board shall cause the Corporation to maintain in
force an insurance policy issuing against standard liability risks in an amount
of not less than $1,000,000.

                  SECTION 11. COMPLIANCE WITH CORPORATIONS CODE. Nothing in this
Article X is intended to negate the obligations of the Corporation to comply
with the requirements of the California General Corporations Law concerning the
books and records of the Corporation.

                                   ARTICLE IX

                     INDEMNIFICATION OF DIRECTORS, OFFICERS,
                           EMPLOYEES AND OTHER AGENTS

                  SECTION 1. MANDATORY INDEMNIFICATION. The Corporation shall,
to the extent and in the manner permitted by the Code, indemnify each of its
Directors and officers against expenses (as defined in Section 317(a) of the
Code), judgments, fines, settlements, and other amounts actually and reasonably
incurred in connection with any proceeding (as defined in Section 317(a) of the
Code), arising by reason of the fact that such person is or was an agent of the
Corporation. For purposes of this Article IX, a "director" or "officer" of the
Corporation includes any person (i) who is or was a director or officer of the
Corporation, (ii) who is or was serving at the request of the Corporation as a
director or officer of another corporation, partnership, joint venture, trust or
other enterprise, or (iii) who was a director or officer of the Corporation
which was a predecessor corporation of the Corporation or of another enterprise
at the request of such predecessor corporation.

                  SECTION 2. PAYMENT OF EXPENSES IN ADVANCE. Expenses incurred
in defending any civil or criminal action or proceeding for which
indemnification is permitted pursuant to Section 1 may be paid by the
Corporation in advance of the final disposition of such action or proceeding
upon receipt of an undertaking by or on behalf of the indemnified party to repay
such amount if it shall ultimately be determined that the indemnified party is
not entitled to be indemnified as authorized in this Article IX.

                  SECTION 3. INDEMNITY NOT EXCLUSIVE. The indemnification
provided by this Article IX shall not be deemed exclusive of any other rights to
which those seeking indemnification may be entitled under any bylaw, agreement,
vote of shareholders or disinterested directors or otherwise, both as to action
in an official capacity and as to action in another capacity while holding such
office, to the extent that such additional rights to indemnification are
authorized in the Articles of Incorporation.

                  SECTION 4. INSURANCE INDEMNIFICATION. The Corporation shall
purchase and maintain insurance on behalf of any person who is or was an agent
of the Corporation against

                                       15

<PAGE>

any liability asserted against or incurred by such person in such capacity or
arising out of such person's status as such, whether or not the Corporation
would have the power to indemnify him against such liability under the
provisions of this Article IX.

                                    ARTICLE X

                                  MISCELLANEOUS

                  SECTION 1. CHECKS, DRAFTS, ETC. All checks, drafts or other
orders for payment of money, notes or other evidences of indebtedness, and any
assignment or endorsement thereof, issued in the name of or payable to the
Corporation, shall be signed or endorsed by such person or persons and in such
manner as, from time to time, shall be determined by resolution of the Board of
Directors.

                  SECTION 2. CERTIFICATES OF STOCK. A certificate or
certificates for shares of the capital stock of the Corporation shall be issued
to each shareholder when the shares are fully paid or the Board of Directors may
authorize the issuance of certificates for shares as partly paid provided that
these certificates shall conspicuously state the amount of the consideration to
be paid for them and the amount already paid. All certificates shall be signed
in the name of the Corporation by the CEO and by the CFO or an assistant
treasurer or the Secretary or an assistant secretary, certifying the number of
shares and the class or series thereof owned by the shareholder. Any or all of
the signatures on a certificate may be by facsimile signature. In case any
officer, transfer agent or registrar who has signed or whose facsimile signature
has been placed upon a certificate shall have ceased to be such officer,
transfer agent or registrar before such certificate is issued, it may be issued
by the Corporation with the same effect as if such person were an officer,
transfer agent or registrar at the date of issue.

                  SECTION 3. REPLACEMENT OF LOST, STOLEN OR DESTROYED
CERTIFICATES. Any shareholder claiming that his, her, its or their stock
certificate is lost, stolen or destroyed may make an affidavit or affirmation of
that fact and request a new certificate. Upon the giving of a satisfactory
indemnity to the Corporation as reasonably required by the Board, a new
certificate may be issued of the same tenor and representing the same number of
shares of capital stock as was represented by the certificate alleged to be
lost, stolen or destroyed.

                  SECTION 4. NO PRIORITY. No shareholder shall have priority
over any other shareholder with respect to payments of dividends, or other
distributions from the Corporation.

                  SECTION 5. REPRESENTATION OF SHARES OF OTHER CORPORATIONS. Any
person designated by resolution of the Board of Directors or, in the absence of
such designation, the CEO or the Secretary, or any other person authorized by
any of the foregoing, is authorized to vote on behalf of the Corporation any and
all shares of any other corporation or corporations,

                                       16

<PAGE>

foreign or domestic, and any and all partnership or joint venture interests
owned by the Corporation.

                  SECTION 6. LOANS TO THE CORPORATION. A shareholder may lend
money to the Corporation provided that the shareholder does so in the good faith
belief that such loan is reasonably necessary for the operation of the
Corporation. Such shareholder shall be entitled to interest on the principal
amount of the loan as a rate of six percent (6%) per annum. Subject to other
applicable law, the shareholder has the same rights and obligations with respect
to making the loan as a person who is not a shareholder.

                  SECTION 7. REMUNERATION TO SHAREHOLDERS. Except as otherwise
explicitly stated in these bylaws, no shareholder is entitled to remuneration
for acting on behalf of the Corporation.

                  SECTION 8. CONSTRUCTION AND DEFINITIONS. Unless the context
otherwise requires, the general provisions, rules of construction and
definitions contained in the California Corporations Code shall govern the
construction of these Bylaws.

                  SECTION 9. REFERENCES TO CODE SECTIONS. Section designations
of three (3) digits or more references herein refer to the General Corporation
Law of California as effective January 1, 1977, as amended.

                  SECTION 10. EFFECT OF SHAREHOLDERS AGREEMENT. Any Shareholders
agreement authorized by Section 300(b), shall only be effective to modify the
terms of these Bylaws if this corporation elects to become a close corporation
with appropriate filing of or amendment to its Articles as required by
California Corporations Code Section 202 and shall terminate when this
corporation ceases to be a close corporation. Such an agreement cannot waive or
alter Sections 158, (defining close corporations), 202 (requirements of Articles
of Incorporation), 500 and 501 (relative to distribution), 1111 (merger),
1201(e) (reorganization) or Chapter 15 (records and reports), Chapter 16 (rights
of inspection), Chapter 18 (involuntary dissolution), or Chapter 22 (crimes and
penalties). Any other provisions of the Code or these Bylaws may be altered or
waived thereby, but to the extent they are not so altered or waived these Bylaws
shall be applicable.

                                   ARTICLE XI

                                   AMENDMENTS

                  SECTION 1. AMENDMENTS. New bylaws may be adopted or these
Bylaws may be amended or repealed by the affirmative vote or written consent of
a majority of the outstanding shares entitled to vote. Subject to the preceding
sentence, bylaws (other than a bylaw or amendment thereof specifying or changing
a fixed number of Directors or the maximum or

                                       17

<PAGE>

minimum number, or changing from fixed to a variable board or vice versa) may be
adopted, amended or repealed by the Board of Directors.

                                       18

<PAGE>

                            CERTIFICATE OF SECRETARY

                  I, the undersigned, do hereby certify:

                  1. That I am the duly elected and acting Secretary of Phoenix
Hydrogen Systems, Inc.., a California corporation; and

                  2. That the foregoing bylaws, comprising 16 pages, constitute
the bylaws of said corporation as duly adopted by action of the Incorporator and
ratified by the Board of Directors of the Corporation on September __, 2000.

                  IN WITNESS WHEREOF, I have hereunto subscribed my name and
affixed the seal of said corporation this __ day of September, 2000.

                                               ------------------------------
                                               LARRY FROST, SECRETARY

                                       19

<PAGE>

                                    EXHIBIT C

                            REORGANIZATION AGREEMENT

                                   [ATTACHED]

<PAGE>

                                   [EXHIBIT C]

                           AGREEMENT OF REORGANIZATION

         This Agreement of Reorganization is entered into as of September __,
2000, by and among Phoenix Hydrogen Systems, LLC, a California limited liability
company ("PHS"), Phoenix Gas Systems, LLC, a California limited liability
company ("PGS"), Sofical Investment Corp. I, a California corporation
("Sofical") and Phoenix Hydrogen Systems, Inc., a California corporation
("Newco").

                                    RECITALS

         WHEREAS, the persons listed on Schedule A hereto own all of the
interests in PGS in the respective percentage shown opposite their name;

         WHEREAS, Hydrogen Burner Technology, Inc., a California corporation
("HBT") and Sofinov Societe Financiere d'Innovation Inc., a Quebec corporation
("Sofinov") own, respectively, a 70% and a 30% interest in PHS;

         WHEREAS, the officers and the boards of directors of Newco and Sofical
and the shareholder of Sofical believe the Reorganization (as defined below) and
the mergers contemplated by the Reorganization (the "Mergers") to be in the best
interests of the respective business entities;

         WHEREAS, the members and managers of PHS and PGS, the boards of
directors of Newco, Sofical, and the shareholder of Sofical desire to merge PHS,
PGS and Sofical with and into Newco (the "Reorganization").

         NOW, THEREFORE, in consideration of the premises and of the mutual
covenants and agreements herein set forth and for the purpose of prescribing the
terms and conditions of such Reorganization, the parties hereto agree as
follows:

         1.       Pursuant to that certain Reorganization Agreement, dated as of
September __, 2000, by and among HBT, Sofinov, Sofical, PHS, PGS and certain
other parties (the "Reorganization Agreement") each of Sofical, PGS and PHS
shall be merged with and into Newco and Newco will be the surviving corporation
in the Reorganization (the "Surviving Corporation").

         2.       Upon the effectiveness of the Reorganization, all the
membership interests in PHS held by Sofinov immediately prior to the
Reorganization will be automatically converted into the right to receive a total
of 2,549,359 shares of Newco common stock and all membership interests in PHS
held by HBT immediately prior to the Reorganization will be automatically
converted into the right to receive a total of 5,948,505 shares of Newco common
stock. Upon conversion

                                       -2-

<PAGE>

thereof into shares of Newco common stock at the Reorganization Effective Time
(as such term is defined in the Reorganization Agreement), all membership
interests in PHS will cease to be outstanding and will automatically be canceled
and retired.

         3.       Upon the effectiveness of the Reorganization, all the
membership interests in PGS held by Sofical immediately prior to the
Reorganization will be automatically converted into the right to receive a total
of 1,638,099 shares of Newco common stock; all membership interests in PGS held
by HBT immediately prior to the Reorganization will be automatically converted
into the right to receive a total of 3,404,664 shares of Newco common stock; and
all membership interests held by each of the individuals listed on Schedule A
attached hereto immediately prior to the Reorganization will be automatically
converted into shares of Newco common stock equal to the number of shares set
forth opposite their names on Schedule A attached thereto. Upon conversion
thereof into shares of Newco common stock at the effective time of the
Reorganization, all membership interests in PGS will cease to be outstanding and
will automatically be canceled and retired.

         4.       Upon the effectiveness of the Reorganization, all shares of
Sofical common stock issued and outstanding immediately prior thereto will be
automatically converted into the right to receive the shares of Newco common
stock held by Sofical upon the conversion of its interests in PGS. Upon such
conversion thereof at the effective time of the Reorganization, all shares of
Sofical common stock will cease to be outstanding and will automatically be
canceled and retired.

         5.       Upon the effectiveness of the Reorganization, Newco shall
issue shares of Newco common stock to HBT and Sofinov in the respective amounts
set forth opposite their names on Schedule B.

         6.       The effects of the Reorganization and the Reorganization
Effective Date shall be as prescribed by law.

         7.       This Agreement has been approved by the boards of directors
and the shareholders of Newco and of Sofical.

         8.       This Agreement has been approved by all the members and the
managers of PHS and PGS.

                     [SIGNATURES APPEAR ON FOLLOWING PAGES]

                                       -3-

<PAGE>

         IN WITNESS WHEREOF, the parties hereto, pursuant to the approval and
authority duly given by resolution of their respective governing bodies, have
caused this Agreement of Reorganization to be signed by their respective
member/managers and officers on the day and year first above written.

                                       ("Newco")
                                       PHOENIX HYDROGEN SYSTEMS, INC.,
                                       a California corporation

                                       By:
                                          --------------------------------------
                                          Name: David Moard
                                          Title:  President

                                       By:
                                          --------------------------------------
                                          Name:  Larry Frost
                                          Title:  Secretary

                                       ("PHS")
                                       PHOENIX HYDROGEN SYSTEMS, LLC,
                                       a California limited liability company

                                       By:
                                          --------------------------------------
                                          Name:
                                          Title:

                                       ("PGS")
                                       PHOENIX GAS SYSTEMS, LLC,
                                       a California limited liability company

                                       By:
                                          --------------------------------------
                                          Name:
                                          Title:

                                      -4-

<PAGE>

                                       ("Sofical")
                                       SOFICAL INVESTMENT CORP. I,
                                       a California corporation

                                       By:
                                          --------------------------------------

                                            Name:
                                                 -------------------------------
                                            Title:  President

                                       By:
                                          --------------------------------------
                                            Name:
                                                 -------------------------------
                                            Title:  Secretary

                                      -5-

<PAGE>

SCHEDULE A

PHOENIX GAS SYSTEMS, LLC

<TABLE>
<CAPTION>

                                                                                  SHARES OF PHOENIX
                                                                                HYDROGEN SYSTEMS, INC.
              MEMBERS                         MEMBERSHIP INTERESTS                  TO BE RECEIVED
---------------------------------------    --------------------------       ---------------------------
<S>                                        <C>                              <C>
Peter Susi                                              2.3658%                        135,264

Kishor D. and Shafali Popat                             1.1758%                         67,227

Robert and Eileen Okerblom                              1.1758%                         67,227

Edwin Moore                                             1.1758%                         67,227

Bruce Hogan                                             1.1758%                         67,227

Jim and Dawn Goffi                                      2.3658%                        135,264

Frederick Green                                         2.3658%                        135,264

Sofical Investment Corp. I                             28.6508%                      1,638,099

Hydrogen Burner Technology, Inc.                       59.5485%                      3,404,664
                                               ===========================================================
APPROXIMATE TOTALS:                                   100%                           5,717,463

</TABLE>

<PAGE>

SCHEDULE B

PHOENIX HYDROGEN SYSTEMS, INC.

<TABLE>
<CAPTION>

                                                             SHARES OF                        PERCENTAGE OF
            SHAREHOLDERS                                   COMMON STOCK                        SHARES OWNED
-----------------------------------                -----------------------------           ---------------------
<S>                                                         <C>                                 <C>
HBT                                                          9,353,169                           65.7964%

Sofinov                                                      4,187,458                           29.4573%

Peter Susi                                                     135,264                             .9515%

Kishor D. & Shafali Popat                                       67,227                             .4729%

Robert and Eileen Okerblom                                      67,227                             .4729%

Jim and Dawn Goffi                                             135,264                             .9515%

Frederick Green                                                135,264                             .9515%

Bruce Hogan                                                     67,227                             .4729%

Edwin Moore                                                     67,227                             .4729%
                                               ================================== =====================================
APPROXIMATE TOTALS:                                         14,215,327                           100%
</TABLE>

                                      -2-

<PAGE>

                                    EXHIBIT D

                              APPROVAL CERTIFICATES

                                   [ATTACHED]

<PAGE>

                                  [EXHIBIT D-1]

                             CERTIFICATE OF APPROVAL

                                       OF

                           AGREEMENT OF REORGANIZATION

David Moard and Larry Frost certify that:

1.       They are the president and the secretary, respectively, of PHOENIX
         HYDROGEN SYSTEMS, INC., a California corporation.

2.       The Agreement of Reorganization in the form attached was duly approved
         by the board of directors and the shareholders of the corporation.

3.       The shareholder approval was by the holders of 100% of the outstanding
         shares of the corporation.

4.       There is only one class of shares and the number of shares outstanding
         is _______.

         We further declare under penalty of perjury under the laws of the State
of California that the matters set forth in this certificate are true and
correct of our own knowledge.

DATE:  September __, 2000
                                       ------------------------------
                                       David Moard, President

                                       ------------------------------
                                       Larry Frost, Secretary

                                      -2-

<PAGE>

                                  [EXHIBIT D-2]

                             CERTIFICATE OF APPROVAL

                                       OF

                           AGREEMENT OF REORGANIZATION

_____________ and _____________ certify that:

1.       They are the president and the secretary, respectively, of SOFICAL
         INVESTMENT CORP. I, a California corporation.

2.       The Agreement of Reorganization in the form attached was duly approved
         by the board of directors and the shareholders of the corporation.

3.       The shareholder approval was by the holders of 100% of the outstanding
         shares of the corporation.

4.       There is only one class of shares and the number of shares outstanding
         is _______.

         We further declare under penalty of perjury under the laws of the State
of California that the matters set forth in this certificate are true and
correct of our own knowledge.

DATE:  September __, 2000
                                               --------------------------,
                                                         President

                                               --------------------------,
                                                         Secretary

                                      -3-

<PAGE>

                                    EXHIBIT E

                               AGREEMENT OF MERGER

                                   [ATTACHED]

<PAGE>

                                   [EXHIBIT E]

                               AGREEMENT OF MERGER

         This AGREEMENT OF MERGER (this "Agreement") is entered into as of
September ___, 2000, by and between HYDROGEN BURNER TECHNOLOGY, INC., a
California corporation ("HBT"), and PHOENIX HYDROGEN SYSTEMS, INC., a California
corporation ("Newco"), with reference to that certain Reorganization Agreement
entered into as of the ____ day of September, 2000, by and among HBT, Sofinov
Societe Financiere d'Innovation Inc., a Quebec corporation, and certain other
parties (the "Reorganization Agreement"). Capitalized terms used herein and not
otherwise defined shall have the meanings ascribed thereto in the Reorganization
Agreement.

         HBT and Newco do hereby agree as follows:

         1.       Pursuant to that certain Agreement, dated as of September __,
2000, by and among HBT, Newco, and certain other parties, Newco shall be merged
(the "Merger") with and into HBT, and HBT will be the surviving corporation in
the Merger.

         2.       Upon the effectiveness of the Merger, each share of Newco
common stock issued and outstanding immediately prior thereto (excluding any
common stock held by HBT) will be automatically converted into the right to
receive one (1) share of HBT common stock, as set forth on Schedule A attached
hereto. Upon conversion thereof into shares of HBT common stock at the effective
time of the Merger, all shares of Newco common stock will cease to be
outstanding and will automatically be canceled and retired.

         3.       Each share of Newco common stock held by HBT immediately prior
to the effective time of the Merger will be canceled.

         4.       The effects of the Merger and the effective date of the Merger
shall be as prescribed by law.

         5.       This Agreement has been approved by the board of directors and
the shareholders of Newco and HBT.

              [THE REMAINDER OF THIS PAGE INTENTIONALLY LEFT BLANK]

                                      -2-

<PAGE>

         IN WITNESS WHEREOF, each of the parties hereto has caused this
Agreement to be executed by its duly authorized representatives as of the day
and year first above written.

                                       HYDROGEN BURNER TECHNOLOGY, INC.,
                                       a California corporation

                                       By:
                                          ----------------------------------

                                            Name:  David Moard
                                            Title:  President

                                       By:
                                          ----------------------------------
                                            Name:  Larry Frost
                                            Title:  Assistant Secretary

                                       PHOENIX HYDROGEN SYSTEMS, INC.,
                                       a California corporation

                                       By:
                                          ----------------------------------
                                            Name: David Moard
                                            Title:  President

                                       By:
                                          ----------------------------------
                                            Name:  Larry Frost
                                            Title:  Assistant Secretary

                                      -3-

<PAGE>

                                  [EXHIBIT E-1]

                             CERTIFICATE OF APPROVAL

                                       OF

                               AGREEMENT OF MERGER

David Moard and Larry Frost certify that:

1.       They are the president and the secretary, respectively, of PHOENIX
         HYDROGEN SYSTEMS, INC., a California corporation.

2.       The Agreement of Merger in the form attached was duly approved by the
         board of directors and the shareholders of the corporation.

3.       The shareholder approval was by the holders of 100% of the outstanding
         shares of the corporation.

4.       There is only one class of shares and the number of shares outstanding
         is _______.

         We further declare under penalty of perjury under the laws of the State
of California that the matters set forth in this certificate are true and
correct of our own knowledge.

DATE:  September __, 2000
                                                  ---------------------------
                                                  David Moard, President

                                                  ---------------------------
                                                  Larry Frost, Secretary

                                      -4-

<PAGE>

                                  [EXHIBIT E-2]

                             CERTIFICATE OF APPROVAL

                                       OF

                               AGREEMENT OF MERGER

David Moard and Larry Frost certify that:

1.       They are the president and the assistant secretary, respectively, of
         HYDROGEN BURNER TECHNOLOGY, INC., a California corporation.

2.       The Agreement of Merger in the form attached was duly approved by the
         board of directors and the shareholders of the corporation.

3.       The shareholder approval was by the holders of _______ shares, which
         constitute a majority of the outstanding shares of the corporation.

4.       There is only one class of shares and the number of shares outstanding
         is _______.

         We further declare under penalty of perjury under the laws of the State
of California that the matters set forth in this certificate are true and
correct of our own knowledge.

DATE:  September __, 2000
                                       ------------------------------------
                                       David Moard, President

                                       ------------------------------------
                                       Larry Frost, Assistant Secretary

                                      -5-

<PAGE>

                                    EXHIBIT F

                             RIGHTS AND PREFERENCES

                                   [ATTACHED]

<PAGE>

                                    EXHIBIT F

         The rights, preferences, privileges, restrictions and other matters
relating to the Preferred Stock are as follows:

         1.       DIVIDEND RIGHTS.

                  (a)      Holders of Preferred Stock, in preference to the
holders of any other stock of HBT ("JUNIOR STOCK"), shall be entitled to
receive, when and as declared by the Board of Directors, but only out of funds
that are legally available therefor, cash dividends on each outstanding share of
Preferred Stock. Such dividends shall be payable only when, as and if declared
by the Board of Directors and shall be non-cumulative.

                  (b)      So long as any shares of Preferred Stock shall be
outstanding, no dividend, whether in cash or property, shall be paid or
declared, nor shall any other distribution be made, on any Junior Stock, nor
shall any shares of any Junior Stock of HBT be purchased, redeemed, or otherwise
acquired for value by HBT (except for acquisitions of Common Stock by HBT
pursuant to agreements which permit HBT to repurchase such shares upon
termination of services to HBT or in exercise of HBT's right of first refusal
upon a proposed transfer) until all dividends (set forth in Section 1(a) above)
on the Preferred Stock shall have been paid or declared and set apart. In the
event dividends are paid on any share of Common Stock, an additional dividend
shall be paid with respect to all outstanding shares of Preferred Stock in an
amount equal per share (on an as-if-converted to Common Stock basis) to the
amount paid or set aside for each share of Common Stock. The provisions of this
Section 1(b) shall not, however, apply to (i) a dividend payable solely in
Common Stock, or (ii) any repurchase of any outstanding securities of HBT or the
acquisition of shares of any Junior Stock in exchange for shares of any other
Junior Stock that, in each instance, is approved by HBT's Board of Directors
(including all the representatives of the Preferred Stock).

         2.       VOTING RIGHTS.

                  (a)      GENERAL RIGHTS. Except as otherwise provided herein
or as required by law, the Preferred Stock shall be voted equally with the
shares of the Common Stock of HBT and not as a separate class, at any annual or
special meeting of stockholders of HBT, and may act by written consent in the
same manner as the Common Stock, in either case upon the following basis: each
holder of shares of Preferred Stock shall be entitled to such number of votes as
shall be equal to the whole number of shares of Common Stock into which such
holder's aggregate number of shares of Preferred Stock are convertible (pursuant
to Section 4 hereof), immediately after the close of business on the record date
fixed for such meeting or the effective date of such written consent. Fractional
votes shall not be permitted. Any fractional shares to which such holder may be
entitled upon conversion of such holder's Preferred Stock, in the aggregate,
shall be rounded to the nearest whole number solely for voting purposes of such
holder's Preferred Stock, with a fractional interest of 0.5 or more being
rounded up to 1 vote and a fractional interest of 0.49 or less being disregarded
for voting purposes. Each holder of Common Stock shall be entitled to one (1)
vote for each share of Common Stock held.

                                      -2-

<PAGE>

                  (b)      BOARD OF DIRECTORS.

                           (i)      So long as any shares of Preferred Stock are
outstanding, HBT will have a board of directors (the "BOARD") consisting of nine
(9) members. Each of the Preferred Shareholders shall have the right to
designate a number of Board members in proportion to its aggregate shareholding
in HBT as calculated annually as a percentage of the total number of HBT shares
outstanding on the date of the Annual Meeting of Shareholders. Notwithstanding
any provision herein to the contrary, to the extent Sofinov holds 5% or more of
the aggregate equity of HBT, Sofinov shall have the right to designate no less
than one (1) member of the HBT Board.

                           (ii)     In any event, so long as any shares of
Preferred Stock are outstanding, or, upon conversion into Common Stock, so long
as a Preferred Shareholder has an interest in HBT of 5% or more, such Preferred
Shareholder shall have the right to designate no less than one (1) member on the
Board.

                           (iii)    So long as any shares of Preferred Stock are
outstanding, HBT will not, without the approval by vote or written consent of
66 2/3% of the members of the Board:

                                    (A)      Merge or consolidate with or into
any business entity;

                                    (B)      Acquire or dispose of a majority
interest in any other business entity;

                                    (C)      Make any changes in the fundamental
nature of HBT, or the business carried out by it;

                                    (D)      Sell, transfer, pledge or
exclusively license (or agree to do any of the foregoing) (i) any patent or
related intellectual property rights relating to the fuel cell technology or
that is inconsistent with HBT's annual business plan or (ii) all or
substantially all of HBT's assets, whether in a single transaction or a series
of related transactions;

                                    (E)      Adopt the annual business plan for
HBT;

                                    (F)      Enter into any agreement between
HBT and any party affiliated with HBT (director, officer, shareholder,
management level employee) other than in connection with employment matters;

                                    (G)      Enter into any agreement between
HBT and any third party for the purpose of forming a strategic alliance or a
joint venture of any kind except marketing (agent and distributor agreements)
and any agreements that do not involve technology transfer;

                                    (H)      Adopt HBT's annual operating and
capital expenditure budget; or

                                      -3-

<PAGE>

                                    (I)      Acquire or dispose of a minority
interest in any other business entity.

                  (c)      SEPARATE CLASS VOTE OF SERIES A PREFERRED. For so
long as shares of Series A Preferred remain outstanding, in addition to any
other vote or consent required herein or by law, the vote or written consent of
the holders of at least a majority of the outstanding Series A Preferred shall
be necessary for effecting or validating the following actions:

                           (i)      Any amendment, alteration, or repeal of any
provision of the Articles of Incorporation or the Bylaws of HBT (including any
filing of a Certificate of Designation), that alters or changes the voting or
other powers, preferences, or other special rights or privileges, or
restrictions of the Series A Preferred so as to affect them adversely;

                           (ii)     Any increase or decrease (other then by
redemption or conversion) in the number of authorized shares of any class or
series of stock of HBT;

                           (iii)    Any issuance, authorization, designation, or
obligation to issue, whether by reclassification, recapitalization or otherwise,
of any new class or series of stock or any other securities convertible into, or
exchangeable or exercisable for, equity securities of HBT ranking on a PARITY
with or senior to the Series A Preferred in right of redemption, liquidation
preference, voting or dividends or any increase in the authorized or designated
number of any such new class or series;

                           (iv)     Any redemption, repurchase, or other
acquisition (or any payment or set aside for a sinking fund for such purpose)
with respect to any shares of capital stock of HBT (except for acquisitions of
Common Stock by HBT pursuant to agreements which permit HBT to repurchase such
shares upon termination of services to HBT or in exercise of HBT's right of
first refusal upon a proposed transfer and except as provided with respect to
mandatory redemptions of Preferred Stock as set forth in Section 5 below);

                           (v)      Incur any indebtedness which has equity
participation rights or is issued in conjunction with any equity securities,
including any security exercisable, exchangeable, or convertible into an equity
security, representing in excess of 5% of HBT's outstanding capital stock;

                           (vi)     Any agreement by HBT or its stockholders
regarding an Asset Transfer or Acquisition (each as defined in Section 3(d));

                           (vii)    Any action that results in the payment or
declaration of a dividend on any shares of Junior Stock;

                           (viii)   Any voluntary dissolution, winding-up or
liquidation of HBT;

                           (ix)     Any increase in the authorized number of
shares of Common Stock reserved for issuance pursuant to stock purchase or stock
option plans to employees, officers or directors of, or consultants to, HBT; or

                                      -4-

<PAGE>

                           (x)      Any borrowings (excluding payables incurred
in the ordinary course of business) by HBT in the aggregate in excess of four
million dollars ($4,000,000); or

                           (xi)     Any increase or decrease in the authorized
number of members constituting the Board of Directors of HBT from nine (9)
members.

         3.       LIQUIDATION RIGHTS.

                  (a)      Upon any liquidation, dissolution, or winding up of
HBT, whether voluntary or involuntary, before any distribution or payment shall
be made to the holders of any Junior Stock, the holders of Preferred Stock shall
be entitled to be paid out of the assets of HBT an amount per share of Preferred
Stock equal to the Series A Issue Price for such series of Preferred Stock (as
defined below) plus all declared and unpaid dividends on the Preferred Stock (as
adjusted for any stock dividends, combinations, splits, recapitalizations and
the like with respect to such shares) for each share of Preferred Stock held by
them. The "Series A Issue Price" shall be $2.16. If, upon any such liquidation,
distribution, or winding up, the assets of HBT shall be insufficient to make
payment in full to all holders of Preferred Stock of the liquidation preference
set forth in this Section 3(a), then such assets shall be distributed among the
holders of Preferred Stock at the time outstanding, ratably in proportion to the
full amounts to which they would otherwise be respectively entitled.

                  (b)      Upon the completion of the distribution required by
subparagraph (a) of this Section 3, the entire remaining assets and funds of HBT
legally available for distribution, if any, shall be distributed among the
holders of Common Stock and Preferred Stock ratably in proportion to the shares
of Common Stock then held by them and the shares of Common Stock which they then
have the right to acquire on conversion of Preferred Stock, until the holders of
Series A Preferred receive an amount per share equal to the Series A Issue
Price.

                  (c)      Upon the completion of the distribution required by
subparagraphs (a) and (b) of this Section 3, the entire remaining assets and
funds of HBT legally available for distribution, if any, shall be distributed
among the holders of Common Stock.

                  (d)      The following events shall be considered a
liquidation under this Section:

                           (i)      any consolidation or merger of HBT with or
into any other corporation or other entity or person, or any other corporate
reorganization, in which the

                           stockholders of HBT immediately prior to such
consolidation, merger or reorganization, own less than fifty percent (50%) of
HBT's voting power immediately after such consolidation, merger or
reorganization, or any transaction or series of related transactions to which
HBT is a party in which in excess of fifty percent (50%) of HBT's voting power
is transferred, excluding any consolidation or merger effected exclusively to
change the domicile of HBT (an "ACQUISITION"); or

                                      -5-

<PAGE>

                           (ii)     a sale, transfer, lease or other disposition
of all or substantially all of the assets of HBT (an "ASSET TRANSFER").

                           (iii)    In any Acquisition or Asset Transfer, if the
consideration received by HBT is other than cash or securities, its value, as
determined in good faith by the Board of Directors, will be deemed its fair
market value. Any securities shall be valued as follows:

                                    (A)      Securities not subject to
investment letter or other similar restrictions on free marketability covered by
(B) below:

                                             (1)      If traded on a national
securities exchange or through the Nasdaq National Market, the value shall be
deemed to be the average of the closing prices of the securities on such
quotation system over the thirty (30) day period ending three (3) days prior to
the closing;

                                             (2)      If  actively  traded
over-the-counter, the value shall be deemed to be the average of the closing bid
or sale prices (whichever is applicable) over the thirty (30) day period ending
three (3) days prior to the closing; and

                                             (3)      If there is no active
public market, the value shall be the fair market value thereof, as mutually
determined by the Board of Directors and the holders of at least a majority of
the voting power of all then outstanding shares of Preferred Stock.

                                    (B)      The method of valuation of
securities subject to investment letter or other restrictions on free
marketability (other than restrictions arising solely by virtue of a
shareholder's status as an affiliate or former affiliate) shall be to make an
appropriate discount from the market value determined as above in (A) (1), (2)
or (3) to reflect the approximate fair market value thereof, as mutually
determined by the Board of Directors and the holders of at least a majority of
the voting power of all then outstanding shares of Preferred Stock.

         4.       CONVERSION RIGHTS.

                  The holders of the Preferred Stock shall have the following
rights with respect to the conversion of the Preferred Stock into shares of
Common Stock (the "CONVERSION RIGHTS"):

                  (a)      OPTIONAL CONVERSION. Subject to and in compliance
with the provisions of this Section 4, any shares of Preferred Stock may, at the
option of the holder, be converted at any time into fully-paid and nonassessable
shares of Common Stock. The number of shares of Common Stock to which a holder
of Preferred Stock shall be entitled upon conversion shall be the product
obtained by multiplying the "CONVERSION RATE" for such series of Preferred
Stock, then in effect (determined as provided in Section 4(b)), by the number of
shares of Preferred Stock being converted.

                  (b)      CONVERSION RATES. The conversion rate in effect at
any time for conversion of the Series A Preferred (the "SERIES A CONVERSION
RATE") shall be the quotient

                                      -6-

<PAGE>

obtained by dividing the Series A Issue Price by the "SERIES A CONVERSION
PRICE," calculated as provided in Section 4(c).

                  (c)      CONVERSION PRICE. The conversion price for the Series
A Preferred (the "SERIES A CONVERSION PRICE") shall initially be the Series A
Issue Price. Such initial Series A Conversion Price shall be adjusted from time
to time in accordance with this Section 4. All references to the Series A
Conversion Price herein shall mean the Series A Conversion Price as so adjusted.

                  (d)      MECHANICS OF CONVERSION.

                           (i)      Each holder of Preferred Stock who desires
to convert the same into shares of Common Stock pursuant to this Section 4 shall
surrender the certificate or certificates therefor, duly endorsed, at the office
of HBT or any transfer agent for the Preferred Stock, and shall give written
notice to HBT at such office that such holder elects to convert the same. Such
notice shall state the number of shares of Preferred Stock being converted.
Thereupon, HBT shall promptly issue and deliver at such office to such holder a
certificate or certificates for the number of shares of Common Stock to which
such holder is entitled and shall promptly pay (x) in cash or, to the extent
sufficient funds are not then legally available therefor, in Common Stock (at
the Common Stock's fair market value determined in good faith by the Board of
Directors as of the date of such conversion), any declared and unpaid dividends
on the shares of Preferred Stock being converted and (y) in cash (at the Common
Stock's fair market value determined in good faith by the Board of Directors as
of the date of conversion) the value of any fractional share of Common Stock
otherwise issuable to any holder of Preferred Stock. Such conversion shall be
deemed to have been made at the close of business on the date of such surrender
of the certificates representing the shares of Preferred Stock to be converted,
and the person entitled to receive the shares of Common Stock issuable upon such
conversion shall be treated for all purposes as the record holder of such shares
of Common Stock on such date.

                           (ii)     If the conversion is in connection with an
underwritten offering of securities pursuant to the Securities Act of 1933, as
amended, the conversion may, at the option of the holder, be conditioned upon
the closing of such sale of securities.

                  (e)      ADJUSTMENT FOR STOCK SPLITS AND COMBINATIONS. If HBT
shall at any time or from time to time after the date that the first share of
Preferred Stock is issued (the "ISSUE DATE") effect a subdivision of the
outstanding Common Stock (by stock split, reclassification or otherwise than by
payment of a dividend in Common Stock, or in any right to acquire Common Stock)
without a corresponding subdivision of a series of Preferred Stock, the
Conversion Price for such series of Preferred Stock in effect immediately before
that subdivision shall be proportionately decreased. Conversely, if HBT shall at
any time or from time to time after the Issue Date combine the outstanding
shares of Common Stock into a smaller number of shares without a corresponding
combination of a series of Preferred Stock, the Conversion Price for such series
of Preferred Stock in effect immediately before the combination shall be
proportionately increased. Any adjustment under this Section 4(e) shall become
effective at the close of business on the date the subdivision or combination
becomes effective.

                                      -7-

<PAGE>

                  (f)      ADJUSTMENT FOR COMMON STOCK DIVIDENDS AND
DISTRIBUTIONS. If HBT at any time or from time to time after the Issue Date
makes, or fixes a record date for the determination of holders of Common Stock
entitled to receive, a dividend or other distribution payable in additional
shares of Common Stock, in each such event the Conversion Price for each series
of Preferred Stock that is then in effect shall be decreased as of the time of
such issuance or, in the event such record date is fixed, as of the close of
business on such record date, by multiplying the Conversion Price for each
series of Preferred Stock then in effect by a fraction (i) the numerator of
which is the total number of shares of Common Stock issued and outstanding
immediately prior to the time of such issuance or the close of business on such
record date, and (ii) the denominator of which is the total number of shares of
Common Stock issued and outstanding immediately prior to the time of such
issuance or the close of business on such record date plus the number of shares
of Common Stock issuable in payment of such dividend or distribution; PROVIDED,
HOWEVER, that if each record date is fixed and such dividend is not fully paid
or if such distribution is not fully made on the date fixed therefor, the
Conversion Price for each series of Preferred Stock shall be recomputed
accordingly as of the close of business on such record date and thereafter the
Conversion Price for each series of Preferred Stock shall be adjusted pursuant
to this Section 4(f) to reflect the actual payment of such dividend or
distribution.

                  (g)      ADJUSTMENT FOR RECLASSIFICATION, EXCHANGE AND
SUBSTITUTION. If at any time or from time to time after the Issue Date, the
Common Stock issuable upon the conversion of the Preferred Stock is changed into
the same or a different number of shares of any class or classes of stock,
whether by recapitalization, reclassification or otherwise (other than an
Acquisition or Asset Transfer as defined in Section 3(d) or a subdivision or
combination of shares or stock dividend or a reorganization, merger,
consolidation or sale of assets provided for elsewhere in Section 4(h)), in any
such event each holder of Preferred Stock shall have the right thereafter to
convert such stock into the kind and amount of stock and other securities and
property receivable upon such recapitalization, reclassification or other change
by holders of the maximum number of shares of Common Stock into which such
shares of Preferred Stock could have been converted immediately prior to such
recapitalization, reclassification or change, all subject to further adjustment
as provided herein or with respect to such other securities or property by the
terms thereof.

                  (h)      REORGANIZATIONS, MERGERS OR CONSOLIDATIONS. If at any
time or from time to time after the Issue Date, there is a capital
reorganization of the Common Stock or the merger or consolidation of HBT with or
into another corporation or another entity or person (other than an Acquisition
or Asset Transfer as defined in Section 3(d) or a recapitalization, subdivision,
combination, reclassification, exchange or substitution of shares provided for
elsewhere in Section 4(e) or (g)), as a part of such capital reorganization,
provision shall be made so that the holders of the Preferred Stock shall
thereafter be entitled to receive upon conversion of the Preferred Stock the
number of shares of stock or other securities or property of HBT to which a
holder of the number of shares of Common Stock deliverable upon conversion would
have been entitled on such capital reorganization, subject to adjustment in
respect of such stock or securities by the terms thereof. In any such case,
appropriate adjustment shall be made in the

                                      -8-

<PAGE>

application of the provisions of this Section 4 with respect to the rights of
the holders of Preferred Stock after the capital reorganization to the end that
the provisions of this Section 4 (including adjustment of the Conversion Price
for each series of Preferred Stock then in effect and the number of shares
issuable upon conversion of each series of Preferred Stock) shall be applicable
after that event and be as nearly equivalent as practicable.

                  (i)      SALE OF SHARES BELOW CONVERSION PRICE.

                           (i)      If at any time or from time to time after
the Issue Date, HBT issues or sells, or is deemed by the express provisions of
this subsection (i) to have issued or sold, Additional Shares of Common Stock
(as defined in subsection (iv) below), other than as a dividend or other
distribution on any class of stock as provided in Section 4(f) above, and other
than a subdivision or combination of shares of Common Stock as provided in
Section 4(e) above, for an Effective Price (as defined in subsection (iv) below)
less than the then effective Conversion Price for a series of Preferred Stock,
then and in each such case the then existing Conversion Price for such series of
Preferred Stock shall be reduced, as of the opening of business on the date of
such issue or sale, to a price determined by multiplying the Conversion Price
for such series of Preferred Stock by a fraction (i) the numerator of which
shall be (A) the number of shares of Common Stock deemed outstanding (as defined
below) immediately prior to such issue or sale, plus (B) the number of shares of
Common Stock which the aggregate consideration received (as defined in
subsection (ii) below) by HBT for the total number of Additional Shares of
Common Stock so issued would purchase at such Conversion Price in effect
immediately prior to such issue or sale, and (ii) the denominator of which shall
be the number of shares of Common Stock deemed outstanding (as defined below)
immediately prior to such issue or sale plus the total number of Additional
Shares of Common Stock so issued. For the purposes of the preceding sentence,
the number of shares of Common Stock deemed to be outstanding as of a given date
shall be the sum of (A) the number of shares of Common Stock actually
outstanding, (B) the number of shares of Common Stock into which the then
outstanding shares of Preferred Stock could be converted if fully converted on
the day immediately preceding the given date, and (C) the number of shares of
Common Stock which could be obtained through the exercise or conversion of all
other rights, options, warrants and convertible securities outstanding on the
day immediately preceding the given date.

                           (ii)     For the purpose of making any adjustment
required under this Section 4(i), the consideration received by HBT for any
issue or sale of securities shall (A) to the extent it consists of cash, be
computed at the net amount of cash received by HBT after deduction of any
underwriting or similar commissions, compensation or concessions paid or allowed
by HBT in connection with such issue or sale but without deduction of any
expenses payable by HBT, (B) to the extent it consists of property other than
cash, be computed at the fair value of that property as determined in good faith
by the Board of Directors, and (C) if Additional Shares of Common Stock,
Convertible Securities (as defined in subsection (iii) below) or rights or
options to purchase either Additional Shares of Common Stock or Convertible
Securities are issued or sold together with other stock or securities or other
assets of HBT for a consideration which covers both, be computed as the portion
of the consideration so

                                      -9-

<PAGE>

received that may be determined in good faith by the Board of Directors to be
allocable to such Additional Shares of Common Stock, Convertible Securities or
rights or options.

                           (iii)    For the purpose of the adjustment required
under this Section 4(i), if HBT issues or sells (i) stock or other securities
convertible into, Additional Shares of Common Stock (such convertible stock or
securities being herein referred to as "CONVERTIBLE SECURITIES") or (ii) rights
or options for the purchase of Additional Shares of Common Stock or Convertible
Securities and if the Effective Price of such Additional Shares of Common Stock
is less than the Conversion Price for a series of Preferred Stock, in each case
HBT shall be deemed to have issued at the time of the issuance of such rights or
options or Convertible Securities the maximum number of Additional Shares of
Common Stock issuable upon exercise or conversion thereof and to have received
as consideration for the issuance of such shares an amount equal to the total
amount of the consideration, if any, received by HBT for the issuance of such
rights or options or Convertible Securities, plus, in the case of such rights or
options, the minimum amounts of consideration, if any, payable to HBT upon the
exercise of such rights or options, plus, in the case of Convertible Securities,
the minimum amounts of consideration, if any, payable to HBT (other than by
cancellation of liabilities or obligations evidenced by such Convertible
Securities) upon the conversion thereof; PROVIDED that if in the case of
Convertible Securities the minimum amounts of such consideration cannot be
ascertained, but are a function of antidilution or similar protective clauses,
HBT shall be deemed to have received the minimum amounts of consideration
without reference to such clauses; PROVIDED FURTHER that if the minimum amount
of consideration payable to HBT upon the exercise or conversion of rights,
options or Convertible Securities is reduced over time or on the occurrence or
non-occurrence of specified events other than by reason of antidilution
adjustments, the Effective Price shall be recalculated using the figure to which
such minimum amount of consideration is reduced; PROVIDED FURTHER, that if the
minimum amount of consideration payable to HBT upon the exercise or conversion
of such rights, options or Convertible Securities is subsequently increased, the
Effective Price shall be again recalculated using the increased minimum amount
of consideration payable to HBT upon the exercise or conversion of such rights,
options or Convertible Securities. No further adjustment of the Conversion
Price, as adjusted upon the issuance of such rights, options or Convertible
Securities, shall be made as a result of the actual issuance of Additional
Shares of Common Stock on the exercise of any such rights or options or the
conversion of any such Convertible Securities. If any such rights or options or
the conversion privilege represented by any such Convertible Securities shall
expire without having been exercised, the Conversion Price for each series of
Preferred Stock as adjusted upon the issuance of such rights, options or
Convertible Securities shall be readjusted to the Conversion Price which would
have been in effect had an adjustment been made on the basis that the only
Additional Shares of Common Stock so issued were the Additional Shares of Common
Stock, if any, actually issued or sold on the exercise of such rights or options
or rights of conversion of such Convertible Securities, and such Additional
Shares of Common Stock, if any, were issued or sold for the consideration
actually received by HBT upon such exercise, plus the consideration, if any,
actually received by HBT for the granting of all such rights or options, whether
or not exercised, plus the consideration received for issuing or selling the
Convertible Securities actually converted, plus the consideration, if any,
actually received by HBT (other than by cancellation of liabilities or

                                      -10-

<PAGE>

obligations evidenced by such Convertible Securities) on the conversion of such
Convertible Securities; PROVIDED that such readjustment shall not apply to prior
conversions of Preferred Stock.

                           (iv)     "ADDITIONAL SHARES OF COMMON STOCK" shall
mean all shares of Common Stock issued by HBT or deemed to be issued pursuant to
this Section 4(i), other than (A) shares of Common Stock issued upon conversion
of the Preferred Stock; (B) up to Four Million, Nine Hundred Seventy-Six
Thousand, Two Hundred Sixty-Eight (4,976,268) shares of Common Stock issued or
issuable pursuant to the exercise of options, warrants or other Common Stock
purchase rights (as adjusted for any stock dividends, combinations, splits,
recapitalizations and the like) before or after the Issue Date to employees,
officers or directors of, or consultants or advisors to HBT or any subsidiary
pursuant to stock purchase or stock option plans or other arrangements that are
approved by the Board (including all the representatives of the Preferred
Stock); (C) shares of Common Stock and/or options, warrants or other Common
Stock purchase rights, and the Common Stock issued pursuant to such options,
warrants or other rights issued for consideration other than cash pursuant to a
merger, consolidation, acquisition or similar business combination, or strategic
partnership, joint venture or similar business affiliation approved by the Board
(including all the representatives of the Preferred Stock) and (D) shares of
Common Stock issued pursuant to any equipment leasing arrangement, or debt
financing from a bank or similar financial institution or other commercial
financing transaction, approved by the Board (including all the representatives
of the Preferred Stock). References to Common Stock in the subsections of this
clause (iv) above shall mean all shares of Common Stock issued by HBT or deemed
to be issued pursuant to this Section 4(i). The "EFFECTIVE PRICE" of Additional
Shares of Common Stock shall mean the quotient determined by dividing the total
number of Additional Shares of Common Stock issued or sold, or deemed to have
been issued or sold by HBT under this Section 4(i), into the aggregate
consideration received, or deemed to have been received by HBT for such issue
under this Section 4(i), for such Additional Shares of Common Stock.

                  (j)      CERTIFICATE OF ADJUSTMENT. In each case of an
adjustment or readjustment of the Conversion Price for any series of Preferred
Stock for the number of shares of Common Stock or other securities issuable upon
conversion of the Preferred Stock, if the Preferred Stock is then convertible
pursuant to this Section 4, HBT, at its expense, shall compute such adjustment
or readjustment in accordance with the provisions hereof and prepare a
certificate showing such adjustment or readjustment, and shall mail such
certificate, by first class mail, postage prepaid, to each registered holder of
Preferred Stock subject to the adjustment at the holder's address as shown in
HBT's books. The certificate shall set forth such adjustment or readjustment,
showing in detail the facts upon which such adjustment or readjustment is based,
including a statement of (i) the consideration received or deemed to be received
by HBT for any Additional Shares of Common Stock issued or sold or deemed to
have been issued or sold, (ii) the Conversion Price at the time in effect, (iii)
the number of Additional Shares of Common Stock and (iv) the type and amount, if
any, of other property which at the time would be received upon conversion of
the Preferred Stock.

                                      -11-

<PAGE>

                  (k)      NOTICES OF RECORD DATE. Upon (i) any taking by HBT of
a record of the holders of any class of securities for the purpose of
determining the holders thereof who are entitled to receive any dividend or
other distribution, or (ii) any Acquisition (as defined in Section 3(d)) or
other capital reorganization of HBT, any reclassification or recapitalization of
the capital stock of HBT, any merger or consolidation of HBT with or into any
other corporation, or any Asset Transfer (as defined in Section 3(d)), or any
voluntary or involuntary dissolution, liquidation or winding up of HBT, HBT
shall mail to each holder of Preferred Stock at least ten (10) days prior to the
record date specified therein (or such shorter period approved by a majority of
the outstanding Preferred Stock) a notice specifying (A) the date on which any
such record is to be taken for the purpose of such dividend or distribution and
a description of such dividend or distribution, (B) the date on which any such
Acquisition, reorganization, reclassification, transfer, consolidation, merger,
Asset Transfer, dissolution, liquidation or winding up is expected to become
effective, and (C) the date, if any, that is to be fixed as to when the holders
of record of Common Stock (or other securities) shall be entitled to exchange
their shares of Common Stock (or other securities) for securities or other
property deliverable upon such Acquisition, reorganization, reclassification,
transfer, consolidation, merger, Asset Transfer, dissolution, liquidation or
winding up.

                  (l)      AUTOMATIC CONVERSION.

                           (i)      Each share of Preferred Stock shall
automatically be converted into shares of Common Stock, based on the
then-effective Conversion Price for such Preferred Stock, immediately upon the
closing of a firmly underwritten public offering pursuant to an effective
registration statement under the Securities Act of 1933, as amended, covering
the offer and sale of Common Stock for the account of HBT in which (i) the per
share price is at least Five Dollars ($5.00) (as adjusted for stock splits,
dividends, recapitalizations and the like), and (ii) the gross cash proceeds to
HBT (net of underwriting discounts, commissions and fees) are at least fifty
million dollars ($50,000,000). Upon such automatic conversion, any declared and
unpaid dividends shall be paid in accordance with the provisions of Section
4(d).

                           (ii)     Each outstanding share of a series of
Preferred Stock shall automatically be converted into shares of Common Stock,
based on the then-effective Conversion Price for such series of Preferred Stock
upon the majority vote of all outstanding shares of such series of Preferred
Stock, voting as a separate class. Upon such automatic conversion any declared
and unpaid dividends shall be paid in accordance with the provisions of Section
4(d).

                           (iii)    Upon the occurrence of either event
specified in Section 4(l)(i) or (ii) above, the outstanding shares of Preferred
Stock (or a series of Preferred Stock, as the case may be) shall be converted
automatically without any further action by the holders of such shares and
whether or not the certificates representing such shares are surrendered to HBT
or its transfer agent; PROVIDED, HOWEVER, that HBT shall not be obligated to
issue certificates evidencing the shares of Common Stock issuable upon such
conversion unless the certificates evidencing such shares of Preferred Stock are
either delivered to HBT or its transfer agent as provided below, or the holder
notifies HBT or its transfer agent that such certificates have been lost, stolen
or

                                      -12-

<PAGE>

destroyed and executes an agreement reasonably satisfactory to HBT to indemnify
HBT from any loss incurred by it in connection with such certificates. Upon the
occurrence of such automatic conversion of the Preferred Stock (or a series of
Preferred Stock, as the case may be), the holders of Preferred Stock subject to
such automatic conversion shall surrender the certificates representing such
shares at the office of HBT or any transfer agent for the Preferred Stock.
Thereupon, there shall be issued and delivered to such holder promptly at such
office and in its name as shown on such surrendered certificate or certificates,
a certificate or certificates for the number of shares of Common Stock into
which the shares of Preferred Stock surrendered were convertible on the date on
which such automatic conversion occurred, and any declared and unpaid dividends
shall be paid in accordance with the provisions of Section 4(d).

                  (m)      FRACTIONAL SHARES. No fractional shares of Common
Stock shall be issued upon conversion of Preferred Stock. All shares of Common
Stock (including fractions thereof) issuable upon conversion of more than one
share of Preferred Stock by a holder thereof shall be aggregated for purposes of
determining whether the conversion would result in the issuance of any
fractional share. If, after the aforementioned aggregation, the conversion would
result in the issuance of any fractional share, HBT shall, in lieu of issuing
any fractional share, pay cash equal to the product of such fraction multiplied
by the Common Stock's fair market value (as determined in good faith by the
Board of Directors, including all the representatives of the Preferred Stock) on
the date of conversion.

                  (n)      RESERVATION OF STOCK ISSUABLE UPON CONVERSION. The
Company shall at all times reserve and keep available out of its authorized but
unissued shares of Common Stock, solely for the purpose of effecting the
conversion of the shares of the Preferred Stock, such number of its shares of
Common Stock as shall from time to time be sufficient to effect the conversion
of all outstanding shares of the Preferred Stock. If at any time the number of
authorized but unissued shares of Common Stock shall not be sufficient to effect
the conversion of all then outstanding shares of the Preferred Stock, HBT will
take such corporate action as may, in the opinion of its counsel, be necessary
to increase its authorized but unissued shares of Common Stock to such number of
shares as shall be sufficient for such purpose.

                  (o)      NOTICES. Any notice required by the provisions of
this Section 4 shall be in writing and shall be deemed effectively given: (i)
upon personal delivery to the party to be notified, (ii) when sent by confirmed
electronic mail or facsimile if sent during normal business hours of the
recipient; if not, then on the next business day, (iii) five (5) days after
having been sent by registered or certified mail, return receipt requested,
postage prepaid, or (iv) one (1) day after deposit with a nationally recognized
overnight courier, specifying next day delivery, with verification of receipt.
All notices shall be addressed to each holder of record at the address of such
holder appearing on the books of HBT.

                  (p)      PAYMENT OF TAXES. The Company will pay all taxes
(other than taxes based upon income) and other governmental charges that may be
imposed with respect to the issue or delivery of shares of Common Stock upon
conversion of shares of Preferred Stock, excluding any tax or other charge
imposed in connection with any transfer involved in the issue

                                      -13-

<PAGE>

and delivery of shares of Common Stock in a name other than that in which the
shares of Preferred Stock so converted were registered.

                  (q)      NO DILUTION OR IMPAIRMENT. Without the consent of the
holders of then outstanding Preferred Stock as required under Sections 2(c) and
(d), HBT shall not amend its Restated Articles of Incorporation or participate
in any reorganization, transfer of assets, consolidation, merger, dissolution,
issue or sale of securities or take any other voluntary action, for the purpose
of avoiding or seeking to avoid the observance or performance of any of the
terms to be observed or performed hereunder by HBT, but shall at all times in
good faith assist in carrying out all such action as may be reasonably necessary
or appropriate in order to protect the conversion rights of the holders of the
Preferred Stock against dilution or other impairment.

                                      -14-

<PAGE>

                                    EXHIBIT G

                         ALTERNATIVE AGREEMENT OF MERGER

                                   [ATTACHED]

<PAGE>

                                   [EXHIBIT G]

                         ALTERNATIVE AGREEMENT OF MERGER

         This ALTERNATIVE AGREEMENT OF MERGER (this "Agreement") is entered into
as of September ___, 2000, by and between HYDROGEN BURNER TECHNOLOGY, INC., a
California corporation ("HBT"), and PHOENIX HYDROGEN SYSTEMS, INC., a California
corporation ("Newco"), with reference to that certain Reorganization Agreement
entered into as of the ____ day of September, 2000, by and among HBT, Sofinov
Societe Financiere d'Innovation Inc., a Quebec corporation ("Sofinov"), and
certain other parties (the "Reorganization Agreement"). Capitalized terms used
herein and not otherwise defined shall have the meanings ascribed thereto in the
Reorganization Agreement.

         HBT and Newco do hereby agree as follows:

         1.       Pursuant to that certain Agreement, dated as of September __,
2000, by and among HBT, Newco, and certain other parties, Newco shall be merged
(the "Alternative Merger") with and into HBT, and HBT will be the surviving
corporation in the Alternative Merger.

         2.       Upon the effectiveness of the Alternative Merger, each share
of Newco common stock issued and outstanding immediately prior thereto
(excluding any common stock held by HBT) will be automatically converted into
the right to receive one (1) share of HBT common stock or, in the case of
Sofinov, preferred stock, as set forth on Schedule A attached hereto. Upon
conversion thereof into shares of HBT common or preferred stock at the effective
time of the Alternative Merger, all shares of Newco common stock will cease to
be outstanding and will automatically be canceled and retired.

         3.       Each share of Newco common stock held by HBT immediately prior
to the effective time of the Alternative Merger will be canceled.

         4.       The effects of the Alternative Merger and the effective date
of the Alternative Merger shall be as prescribed by law.

         5.       This Agreement has been approved by the board of directors and
the shareholders of Newco and HBT.

              [THE REMAINDER OF THIS PAGE INTENTIONALLY LEFT BLANK]

                                      -2-

<PAGE>

         IN WITNESS WHEREOF, each of the parties hereto has caused this
Agreement to be executed by its duly authorized representatives as of the day
and year first above written.

                                       HYDROGEN BURNER TECHNOLOGY, INC.,
                                       a California corporation

                                       By:
                                          -----------------------------------

                                            Name:  David Moard
                                            Title:  President

                                       By:
                                          -----------------------------------
                                            Name:  Larry Frost
                                            Title:  Assistant Secretary

                                       PHOENIX HYDROGEN SYSTEMS, INC.,
                                       a California corporation

                                       By:
                                          -----------------------------------
                                            Name: David Moard
                                            Title:  President

                                       By:
                                          -----------------------------------
                                            Name:  Larry Frost
                                            Title:  Assistant Secretary

                                      -3-

<PAGE>

                                  [EXHIBIT G-1]

                             CERTIFICATE OF APPROVAL

                                       OF

                         ALTERNATIVE AGREEMENT OF MERGER

David Moard and Larry Frost certify that:

1.       They are the president and the secretary, respectively, of PHOENIX
         HYDROGEN SYSTEMS, INC., a California corporation.

2.       The Alternative Agreement of Merger in the form attached was duly
         approved by the board of directors and the shareholders of the
         corporation.

3.       The shareholder approval was by the holders of 100% of the outstanding
         shares of the corporation.

4.       There is only one class of shares and the number of shares outstanding
         is _______.

         We further declare under penalty of perjury under the laws of the State
of California that the matters set forth in this certificate are true and
correct of our own knowledge.

DATE:  September __, 2000
                                       -------------------------------
                                       David Moard, President

                                       -------------------------------
                                       Larry Frost, Secretary

<PAGE>

                                  [EXHIBIT G-2]

                             CERTIFICATE OF APPROVAL

                                       OF

                         ALTERNATIVE AGREEMENT OF MERGER

David Moard and Larry Frost certify that:

1.       They are the president and the assistant secretary, respectively, of
         HYDROGEN BURNER TECHNOLOGY, INC., a California corporation.

2.       The Alternative Agreement of Merger in the form attached was duly
         approved by the board of directors and the shareholders of the
         corporation.

3.       The shareholder approval was by the holders of _______ shares, which
         constitute a majority of the outstanding shares of the corporation.

4.       There is only one class of shares and the number of shares outstanding
         is _______.

         We further declare under penalty of perjury under the laws of the State
of California that the matters set forth in this certificate are true and
correct of our own knowledge.

DATE:  September __, 2000
                                       -----------------------------------
                                       David Moard, President

                                       -----------------------------------
                                       Larry Frost, Assistant Secretary

<PAGE>

                                    EXHIBIT H

                            INVESTOR RIGHTS AGREEMENT

                                   [ATTACHED]

<PAGE>

                                   [EXHIBIT H]

                        HYDROGEN BURNER TECHNOLOGY, INC.

                            INVESTOR RIGHTS AGREEMENT

                  THIS INVESTOR RIGHTS AGREEMENT (this "AGREEMENT") is entered
into as of the _____ day of September, 2000, between Hydrogen Burner Technology,
Inc., a California corporation (the "COMPANY"), and Sofinov Societe Financiere
d'Innovation Inc., a Quebec corporation (the "INVESTOR").

                                    RECITALS

                  WHEREAS, the Company and the Investor are parties to that
certain Reorganization Agreement of even date herewith (the "REORGANIZATION
AGREEMENT") pursuant to which upon the Effective Date of the Merger the Investor
shall receive shares of the Company's common stock (the "COMMON STOCK"), or upon
the Effective Date of the Alternative Merger the Investor shall receive shares
of the Company's preferred stock (the "PREFERRED STOCK") (unless otherwise
defined herein, the terms used in this preamble shall have the meanings ascribed
to such term in the Reorganization Agreement); and

                  WHEREAS, in order to induce the Investor to enter into the
Reorganization Agreement, the Investor and the Company hereby agree that this
Agreement shall govern the rights of the Investor to cause the Company to
register the Common Stock, issued or issuable to the Investor, and certain other
matters, all on the terms and conditions set forth herein.

                  NOW, THEREFORE, the parties hereto, intending legally to be
bound, agree as follows:

                               TERMS OF AGREEMENT

                  1.       REGISTRATION RIGHTS. The Company covenants and agrees
as follows:

                  1.1      DEFINITIONS. For purposes of this SECTION 1:

                  (a)      The term "ACT" means the Securities Act of 1933, as
amended.

                  (b)      The term "INITIAL OFFERING" means the Company's first
firm commitment underwritten public offering of its Common Stock under the Act.

                  (c)      The term "1934 ACT" means the Securities Exchange Act
of 1934, as amended.

                  (d)      The terms "REGISTER", "REGISTERED", AND
"REGISTRATION" refer to a registration effected by preparing and filing a
registration statement or similar document in

                                      -2-

<PAGE>

compliance with the Act, and the declaration or ordering of effectiveness of
such registration statement or document.

                  (e)      The term "REGISTRABLE SECURITIES" means all Common
Stock held by the Investor, including, without limitation, (i) the Common Stock
issuable or issued to the Investor upon conversion of the Preferred Stock, (ii)
any Common Stock issued to the Investor as (or issuable upon the conversion or
exercise of any warrant, right or other security that is issued as) a dividend
or other distribution with respect to, or in exchange for, or in replacement of,
the shares referenced in CLAUSE (i) above, and (iii) all Common Stock held by
the Investor or issued to the Investor pursuant to a merger of the Company or
any similar transaction.

                  (f)      The number of shares of "REGISTRABLE SECURITIES"
outstanding shall be determined by the number of shares of Common Stock
outstanding that are, and the number of shares of Common Stock issuable pursuant
to then exercisable or convertible securities that are, Registrable Securities.

                  (g)      The term "SEC" shall mean the Securities and Exchange
Commission.

                  1.2      REQUEST FOR REGISTRATION.

                  (a)      Subject to the conditions of this SECTION 1.2, if the
Company shall receive at any time after one hundred eighty (180) days following
the date of the Initial Offering, a written request (the "REQUEST") from the
Investor that the Company file a registration statement under the Act covering
the registration of Registrable Securities then the Company shall, within thirty
(30) days of the receipt thereof and subject to the limitations of this SECTION
1.2, use its best efforts to effect the registration under the Act of all
Registrable Securities that the Investor requests to be registered, subject to
clause (d) below.

                  (b)      The Registrable Securities covered by the Request
shall be distributed by means of an underwriting, and the underwriter or
underwriters selected by the Investor shall be reasonably acceptable to the
Company. The right of the Investor to request the registration of its
Registrable Securities shall be conditioned upon the Investor's participation in
such underwriting and the inclusion of such Registrable Securities in the
underwriting to the extent provided herein.

                  (c)      The Company shall not be required to effect a
registration pursuant to this SECTION 1.2:

                  (i)      after the Investor has submitted five (5) Requests
for registration pursuant to this SECTION 1.2, and such registrations have been
declared or ordered effective; or

                  (ii)     if the Company shall furnish to the Investor a
certificate signed by the Chairman of the Board of the Company stating that in
the good faith judgment of the Board of Directors of the Company, it would be
seriously detrimental to the Company and its shareholders for such registration
statement to be effected at such time, including, without limitation, because
the Company is planning a financing for the Company or is in the process of
negotiating a

                                      -3-

<PAGE>

material transaction which cannot or should not be disclosed to the public at
such time, in which event the Company shall have the right to defer such filing
for an aggregate period of not more than sixty (60) days during any 12 month
period after receipt of a Request; PROVIDED, that any shareholder of the Company
making a Request, whether pursuant to this Agreement or otherwise, shall be
treated equally; or

                  (iii)    if the applicable underwriter (if any) determines, in
its good faith judgment, that due to market conditions generally (in the nature
of force majeure events), it would be seriously detrimental to the Company and
its shareholders for a registration statement to be effected at such time, in
which event the Company shall have the right to defer such filing for an
aggregate period of thirty (30) days during any 12 month period after receipt of
a Request; PROVIDED, that any shareholder of the Company making a Request,
whether pursuant to this Agreement or otherwise, shall be treated equally.

                  (d)      Pursuant to any registration statement filed pursuant
to this SECTION 1.2, the Investor may sell up to an aggregate amount equal to
(i) 25% of the aggregate Registrable Securities held by the Investor after the
effective date of the first such registration statement and (ii) 100% of the
aggregate Registrable Securities held by the Investor after the anniversary of
the Initial Offering.

                  1.3      COMPANY REGISTRATION.

                  (a)      Subsequent to the Initial Offering, if the Company
proposes to register (including for this purpose a registration effected by the
Company for shareholders other than the Investor) any of its stock or other
securities under the Act in connection with an underwritten public offering of
such securities (other than a registration relating solely to the sale of
securities to participants in a Company stock plan, a registration on any form
that does not include substantially the same information as would be required to
be included in a registration statement covering the sale of the Registrable
Securities, or a registration in which the only Common Stock being registered is
Common Stock issuable upon conversion of debt securities that are also being
registered), the Company shall, at such time, promptly give the Investor written
notice of such registration. If the registration statement under which the
Company gives notice to Investor under this Section 1.3 is for an underwritten
offering, the Company shall so advise Investor and the right of Investor to be
included in a registration pursuant to this Section 1.3 shall be conditioned
upon Investor's participation in such underwriting and the inclusion of
Investor's Registerable Securities in such underwriting to the extent provided
herein. Upon the written request of the Investor given within twenty (20) days
after mailing of such notice by the Company in accordance with SECTION 3.5
hereof, the Company shall, subject to the provisions of SECTION 1.3(c) hereof,
cause to be registered under the Act all of the Registrable Securities that the
Investor has requested to be registered.

                  (b)      RIGHT TO TERMINATE REGISTRATION. The Company shall
have the right to terminate or withdraw any registration initiated by it under
this SECTION 1.3 prior to the effectiveness of such registration whether or not
the Investor has elected to include securities in

                                      -4-

<PAGE>

such registration. The expenses of such withdrawn registration shall be borne by
the Company in accordance with SECTION 1.7 hereof.

                  (c)      UNDERWRITING REQUIREMENTS. In connection with any
offering involving an underwriting of shares of the Company's capital stock, the
Company shall not be required under this SECTION 1.3 to include all of the
Investor's securities in such underwriting unless the underwriters determine in
good faith that the quantity of such securities will not jeopardize the success
of the offering by the Company. The Company shall be required to include in the
offering only that number of securities, including Registrable Securities, that
the underwriters determine in good faith will not jeopardize the success of the
offering and shall allocate such amount (i) first to the Company, (ii) second to
the Investor and (iii) to any other selling shareholder.

                  1.4      OBLIGATIONS OF THE COMPANY. Whenever required under
this SECTION 1 to effect the registration of any Registrable Securities, the
Company shall, as expeditiously as reasonably possible:

                  (a)      prepare and reasonably file with the SEC a
registration statement with respect to such Registrable Securities and use its
reasonable best efforts to cause such registration statement to become
effective, and keep such registration statement effective for a period of up to
three (3) years or, if earlier, until the distribution contemplated in the
Registration Statement has been completed;

                  (b)      prepare and file with the SEC such amendments and
supplements to such registration statement and the prospectus used in connection
with such registration statement as may be necessary to comply with the
provisions of the Act with respect to the disposition of all securities covered
by such registration statement;

                  (c)      furnish to the Investor such numbers of copies of a
prospectus, including a preliminary prospectus, in conformity with the
requirements of the Act, and such other documents as the Investor may reasonably
request in order to facilitate the disposition of Registrable Securities owned
by the Investor;

                  (d)      use its reasonable best efforts to register and
qualify the securities covered by such registration statement under such other
securities or Blue Sky laws of such jurisdictions as shall be reasonably
requested by the Investor; PROVIDED, that the Company shall not be required in
connection therewith or as a condition thereto to qualify to do business or to
file a general consent to service of process in any such states or
jurisdictions;

                  (e)      in the event of any underwritten public offering,
enter into and perform its obligations under an underwriting agreement, in usual
and customary form, with the managing underwriter of such offering;

                  (f)      notify the Investor at any time when a prospectus
relating thereto is required to be delivered under the Act or the happening of
any event as a result of which the

                                      -5-

<PAGE>

prospectus included in such registration statement, as then in effect, includes
an untrue statement of a material fact or omits to state a material fact
required to be stated therein or necessary to make the statements therein not
misleading in the light of the circumstances then existing;

                  (g)      cause all such Registrable Securities registered
pursuant to such registration statement hereunder to be listed on each
securities exchange on which similar securities issued by the Company are then
listed; and

                  (h) provide a transfer agent and registrar for all Registrable
Securities registered pursuant to the registration statement hereunder and a
CUSIP number for all such Registrable Securities, in each case not later than
the effective date of such registration.

                  1.5      INFORMATION FROM INVESTOR. It shall be a condition
precedent to the obligations of the Company to take any action pursuant to this
SECTION 1 with respect to the Registrable Securities of the Investor that the
Investor shall furnish to the Company such information regarding itself, the
Registrable Securities held by it, and the intended method of disposition of
such securities as shall be required to effect the registration of the Investor
such the Investor's Registrable Securities.

                  1.6      EXPENSES OF REGISTRATION. All expenses other than
underwriting discounts and commissions incurred in connection with
registrations, filings or qualifications pursuant to SECTIONS 1.2 AND 1.3
hereof, including (without limitation) all registration, filing and
qualification fees, printers' and accounting fees, fees and disbursements of
counsel for the Company and fees and disbursements of counsel for the Investor
(with respect to such Counsel, up to a maximum aggregate amount equal to
$25,000) shall be borne by the Company. Notwithstanding the foregoing, the
Company shall not be required to pay for any expenses of any registration
proceeding begun pursuant to SECTION 1.2 hereof, if the registration request is
subsequently withdrawn at the request of the Investor (in which case the
Investor shall bear such expenses) unless, in the case of a registration
requested under SECTION 1.2 hereof, the Investor agrees to forfeit its right to
one (1) demand registration pursuant to SECTION 1.2 hereof, PROVIDED, that if at
the time of such withdrawal, the Investor has learned of a material adverse
change in the condition, business, or prospects of the Company from that known
to the Investor at the time of its request and has withdrawn the request with
reasonable promptness following disclosure by the Company of such material
adverse change, then the Investor shall not be required to pay any of such
expenses and shall retain its rights pursuant to SECTION 1.2.

                  1.7      INDEMNIFICATION. To the extent that the Investor's
Registrable Securities are included in a registration statement under this
SECTION 1:

                  (a)      To the extent permitted by law, the Company will
indemnify and hold harmless the Investor, the partners or officers, directors
and shareholders of the Investor, legal counsel and accountants for the
Investor, any underwriter (as defined in the Act) for the Investor and each
person, if any, who controls the Investor or underwriter within the meaning of
the Act or the 1934 Act, against any losses, claims, damages or liabilities
(joint or several) to which they may become subject under the Act, the 1934 Act
or any state securities laws, insofar as such

                                      -6-

<PAGE>

losses, claims, damages, or liabilities (or actions in respect thereof) arise
out of or are based upon any of the following statements, omissions or
violations (collectively a "VIOLATION"): (i) any untrue statement or alleged
untrue statement of a material fact contained in such registration statement,
including any preliminary prospectus or final prospectus contained therein or
any amendments or supplements thereto, (ii) the omission or alleged omission to
state therein a material fact required to be stated therein, or necessary to
make the statements therein not misleading, or (iii) any violation or alleged
violation by the Company of the Act, the 1934 Act, any state securities laws or
any rule or regulation promulgated under the Act, the 1934 Act or any state
securities laws; and the Company will reimburse the Investor and each such
underwriter or controlling person for any legal or other expenses reasonably
incurred by them in connection with investigating or defending any such loss,
claim, damage, liability or action; PROVIDED, however, that the indemnity
agreement contained in this SUBSECTION 1.7(a) shall not apply to amounts paid in
settlement of any such loss, claim, damage, liability or action if such
settlement is effected without the consent of the Company (which consent shall
not be unreasonably withheld), nor shall the Company be liable in any such case
for any such loss, claim, damage, liability or action to the extent that it
arises out of or is based upon a Violation that occurs in reliance upon and in
conformity with written information furnished expressly for use in connection
with such registration by the Investor or any such underwriter or controlling
person; PROVIDED FURTHER, however, that the foregoing indemnity agreement with
respect to any preliminary prospectus shall not inure to the benefit of the
Investor or any underwriter, or any person controlling the Investor or such
underwriter, from whom the person asserting any such losses, claims, damages or
liabilities purchased shares in the offering, if a copy of the prospectus (as
then amended or supplemented if the Company shall have furnished any amendments
or supplements thereto) was not sent or given by or on behalf of the Investor or
such underwriter to such person, if required by law so to have been delivered,
at or prior to the written confirmation of the sale of the shares to such
person, and if the prospectus (as so amended or supplemented) would have cured
the defect giving rise to such loss, claim, damage or liability.

                  (b)      To the extent permitted by law, the Investor will
indemnify and hold harmless the Company, each of its directors, each of its
officers who has signed the registration statement, each person, if any, who
controls the Company within the meaning of the Act, legal counsel and
accountants for the Company, any underwriter, and any controlling person of any
such underwriter against any losses, claims, damages or liabilities (joint or
several) to which any of the foregoing persons may become subject, under the
Act, the 1934 Act or any state securities laws, insofar as such losses, claims,
damages or liabilities (or actions in respect thereto) arise out of or are based
upon any Violation, in each case to the extent (and only to the extent) that
such Violation occurs in reliance upon and in conformity with written
information furnished by the Investor expressly for use in connection with such
registration; and the Investor will reimburse any person intended to be
indemnified pursuant to this SUBSECTION 1.7(b), for any legal or other expenses
reasonably incurred by such person in connection with investigating or defending
any such loss, claim, damage, liability or action; PROVIDED, however, that the
indemnity agreement contained in this SUBSECTION 1.7(b) shall not apply to
amounts paid in settlement of any such loss, claim, damage, liability or action
if such settlement is effected without the consent of the Investor (which
consent shall not be unreasonably withheld), provided that in no event shall any

                                      -7-

<PAGE>

indemnity under this SUBSECTION 1.7(b) exceed the gross proceeds from the
offering received by the Investor.

                  (c)      Promptly after receipt by an indemnified party under
this SECTION 1.7 of notice of the commencement of any action (including any
governmental action), such indemnified party will, if a claim in respect thereof
is to be made against any indemnifying party under this SECTION 1.7, deliver to
the indemnifying party a written notice of the commencement/hereof and the
indemnifying party shall have the right to participate in, and, to the extent
the indemnifying party so desires, jointly with any other indemnifying party
similarly noticed, to assume the defense thereof with counsel mutually
satisfactory to the parties; PROVIDED, however, that an indemnified party
(together with all other indemnified parties that may be represented without
conflict by one counsel) shall have the right to retain one separate counsel,
with the fees and expenses to be paid by the indemnifying party, if
representation of such indemnified party by the counsel retained by the
indemnifying party would be inappropriate due to actual or potential differing
interests between such indemnified party and any other party represented by such
counsel in such proceeding. The failure to deliver written notice to the
indemnifying party within a reasonable time of the commencement of any such
action, if prejudicial to its ability to defend such action, shall relieve such
indemnifying party of any liability to the indemnified party under this SECTION
1.7, but the omission so to deliver written notice to the indemnifying party
will not relieve it of any liability that it may have to any indemnified party
otherwise than under this SECTION 1.7.

                  (d)      If the indemnification provided for in this SECTION
1.7 is held by a court of competent jurisdiction to be unavailable to an
indemnified party with respect to any loss, liability, claim, damage or expense
referred to herein, then the indemnifying party, in lieu of indemnifying such
indemnified party hereunder, shall contribute to the amount paid or payable by
such indemnified party as a result of such loss, liability, claim, damage or
expense in such proportion as is appropriate to reflect the relative fault of
the indemnifying party on the one hand and of the indemnified party on the other
in connection with the statements or omissions that resulted in such loss,
liability, claim, damage or expense, as well as any other relevant equitable
considerations. The relative fault of the indemnifying party and of the
indemnified party shall be determined by reference to, among other things,
whether the untrue or alleged untrue statement of a material fact or the
omission to state a material fact relates to information supplied by the
indemnifying party or by the indemnified party and the parties' relative intent,
knowledge, access to information, and opportunity to correct or prevent such
statement or omission.

                  (e)      Notwithstanding the foregoing, to the extent that the
provisions on indemnification and contribution contained in the underwriting
agreement entered into in connection with the underwritten public offering are
in conflict with the foregoing provisions, the provisions in the underwriting
agreement shall control.

                  (f)      The obligations of the Company and the Investor under
this SECTION 1.7 shall survive the completion of any offering of Registrable
Securities in a registration statement under this SECTION 1, and otherwise.

                                      -8-

<PAGE>

                  1.8      REPORTS UNDER SECURITIES EXCHANGE ACT OF 1934. With a
view to making available to the Investor the benefits of Rule 144 promulgated
under the Act and any other rule or regulation of the SEC that may at any time
permit the Investor to sell securities of the Company to the public without
registration or pursuant to a registration on Form S-3, the Company agrees to:

                  (a)      make and keep public information available, as those
terms are understood and defined in SEC Rule 144, at all times after the
effective date of the Initial Offering;

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

                  (c)      furnish to the Investor, so long as the Investor owns
any Registrable Securities, forthwith upon request (i) a written statement by
the Company that it has complied with the reporting requirements of SEC Rule 144
(at any time after ninety (90) days after the effective date of the first
registration statement filed by the Company), the Act and the 1934 Act (at any
time after it has become subject to such reporting requirements), or that it
qualifies as a registrant whose securities may be resold pursuant to Form S-3
(at any time after it so qualifies), (ii) a copy of the most recent annual or
quarterly report of the Company and such other reports and documents so filed by
the Company, and (iii) such other information as may be reasonably requested in
availing the Investor of any rule or regulation of the SEC that permits the
selling of any such securities without registration or pursuant to such form.

                  1.9      ASSIGNMENT OF REGISTRATION RIGHTS. The rights to
cause the Company to register Registrable Securities pursuant to this SECTION 1
may be assigned (but only with all related obligations) by the Investor to a
transferee or assignee of such securities that after such assignment or
transfer, holds at least Twenty (20%) Percent of the shares of Registrable
Securities originally held by Sofinov (subject to appropriate adjustment for
stock splits, stock dividends, combinations and other recapitalizations);
PROVIDED, that, such transferee or assignee agrees in writing to be bound by and
subject to the terms and conditions of this Agreement, including without
limitation the provisions of SECTION 2(d) hereof.

                  1.10 LIMITATIONS ON SUBSEQUENT REGISTRATION RIGHTS. From and
after the date of this Agreement, the Company shall not, without the prior
written consent of the Investor, enter into any agreement with any holder or
prospective holder of any securities of the Company that would allow such holder
or prospective holder (a) to include such securities in any registration filed
under SECTION 1.3 hereof, unless under the terms of such agreement, such holder
or prospective holder may include such securities in any such registration only
to the extent that the inclusion of such securities will not reduce the amount
of the Registrable Securities of the Investor that are included or (b) to demand
registration of their securities.

                  2.       COVENANTS OF THE COMPANY.

                  2.1      DELIVERY OF FINANCIAL STATEMENTS. The Company shall
deliver to the Investor:

                                      -9-

<PAGE>

                  (a)      as soon as practicable, but in any event within
ninety (90) days after the end of each fiscal year of the Company, an income
statement for such fiscal year, a balance sheet of the Company and statement of
shareholder's equity as of the end of such year, and a statement of cash flows
for such year, such year-end financial reports to be in reasonable detail,
prepared in accordance with generally accepted accounting principles ("GAAP"),
and audited and certified by independent public accountants of nationally
recognized standing selected by the Company;

                  (b)      as soon as practicable, but in any event within
forty-five (45) days after the end of each of the first three (3) quarters of
each fiscal year of the Company, an unaudited income statement, statement of
cash flows for such fiscal quarter and an unaudited balance sheet as of the end
of such fiscal quarter.

                  (c)      as soon as practicable, but in any event within
forty-five (45) days after the end of each calendar month, an unaudited income
statement, statement of cash flows for such calendar month and an unaudited
balance sheet as of the end of such calendar month.

                  (d)      with respect to the financial statements called for
IN SUBSECTIONS (b) AND (c) of this SECTION 2.1, an instrument executed by the
Chief Financial Officer or President of the Company certifying that such
financials were prepared in accordance with GAAP consistently applied with prior
practice for earlier periods (with the exception of footnotes that may be
required by GAAP) and fairly present the financial condition of the Company and
its results of operation for the period specified, subject to year-end audit
adjustment; and

                  (e)      such other information relating to the financial
condition, business, prospects or corporate affairs of the Company as the
Investor or any assignee of the Investor may from time to time request,
PROVIDED, however, that the Company shall not be obligated under this SUBSECTION
(e) OR ANY other subsection of SECTION 2.1 to provide information that it deems
in good faith to be a trade secret or similar confidential information.

                  2.2      INSPECTION. The Company shall permit the Investor, at
the Investor's expense, to visit and inspect the Company's properties, to
examine its books of account and records and to discuss the Company's affairs,
finances and accounts with its officers, all at such reasonable times as may be
requested by the Investor; PROVIDED, however, that the Company shall not be
obligated pursuant to this SECTION 2.2 to provide access to any information that
it reasonably considers to be a trade secret or similar confidential
information.

                  3.       MISCELLANEOUS.

                  3.1      SUCCESSORS AND ASSIGNS. Except as otherwise provided
herein, including, without limitation, in SECTION 1.9 hereof, the terms and
conditions of this Agreement shall inure to the benefit of and be binding upon
the respective successors and assigns of the parties hereto (including
transferees of any shares of Registrable Securities pursuant to SECTION 1.9
hereof). Nothing in this Agreement is intended to confer upon any party other
than the parties hereto or their respective successors and assigns any rights,
remedies, obligations or liabilities under or by

                                      -10-

<PAGE>

reason of this Agreement, except as expressly provided in this Agreement,
including, without limitation.

                  3.2      GOVERNING LAW. This Agreement shall be governed by
and construed under the laws of the State of California as applied to agreements
among California residents entered into and to be performed entirely within
California.

                  3.3      COUNTERPARTS. This Agreement may be executed in two
or more counterparts and by facsimile, each of which shall be deemed an
original, but all of which together shall constitute one and the same
instrument.

                  3.4      TITLES AND SUBTITLES. The titles and subtitles used
in this Agreement are used for convenience only and are not to be considered in
construing or interpreting this Agreement.

                  3.5      NOTICES. Unless otherwise provided, any notice
required or permitted under this Agreement shall be given in writing and shall
be deemed effectively given upon personal delivery to the party to be notified
or upon delivery by confirmed facsimile transmission, nationally recognized
overnight courier service, or upon deposit with the United States Post Office,
by registered or certified mail, postage prepaid and addressed to the party to
be notified at the address indicated for such party on the signature page
hereof, or at such other address as such party may designate by ten (10) days'
advance written notice to the other parties.

                  3.6      EXPENSES. If any action at law or in equity is
necessary to enforce or interpret the terms of this Agreement, the prevailing
party shall be entitled to reasonable attorneys' fees, costs and necessary
disbursements in addition to any other relief to which such party may be
entitled.

                  3.7      ENTIRE AGREEMENT; AMENDMENTS AND WAIVERS. This
Agreement constitutes the full and entire understanding and agreement among the
parties with regard to the subjects hereof and thereof. Any term of this
Agreement may be amended and the observance of any term of this Agreement may be
waived (either generally or in a particular instance and either retroactively or
prospectively), only with the written consent of the Company and the Investor.
Any amendment or waiver effected in accordance with this paragraph shall be
binding upon each holder of any Registrable Securities each future holder of all
such Registrable Securities, and the Company.

                  3.8      SEVERABILITY. If one or more provisions of this
Agreement are held to be unenforceable under applicable law, such provision
shall be excluded from this Agreement and the balance of the Agreement shall be
interpreted as if such provision were so excluded and shall be enforceable in
accordance with its terms.

                  IN WITNESS WHEREOF, the parties hereto have executed this
Agreement as of the date first written above.

                                      -11-

<PAGE>

                          Hydrogen Burner Technology, Inc.

                          By:
                                 --------------------------------------------
                          Name:
                                 --------------------------------------------
                          Title:
                                 --------------------------------------------

                          Address for Notices:

                          Manatt, Phelps & Phillips, LLP
                          11355 West Olympic Boulevard.
                          Los Angeles, California 90664
                          Fax: 310-312-4224
                          Attention: John Sarafopoulos

                         Sofinov Societe Financiere d'Innovation Inc.

                         By:
                                 --------------------------------------------
                         Name:
                                 --------------------------------------------
                         Title:
                                 --------------------------------------------

                         Address for Notices:

                         Hughes Hubbard & Reed LLP
                         350 South Grand Avenue, 36th Floor
                         Los Angeles, California 90071-3442
                         Attention: Eric van Ginkel, Esq.
                         Fax: 213-613-2950

                                      -12-<PAGE>

                                  EXHIBIT 10.25
                               FORMATION AGREEMENT
                                      WITH
                                     SOFINOV

<PAGE>

                               FORMATION AGREEMENT

                  This Agreement to Form (the "Formation Agreement") is
entered into as of the 7th day of August, 1996 by and between Hydrogen Burner
Technology, Inc., a California Corporation ("HBT") and Sofinov Societe
Financiere d'Innovation Inc., a Quebec Corporation ("Sofinov") with reference
to the following facts:

         A.       HBT is the sole owner of certain rights in and to the patents
and pending patents described in the PHS License (as defined in Section 2.2B
below) (the "Licensed UOB-TM Patents"). Generally, the Licensed UOB-TM- Patents
relate to what is referred to as "Underoxidized Burner Technology" (the "UOB-TM-
Technology"). The terms "UOB-TM- Technology", "Licensed UOB-TM- Patents",
"UOB-TM-Systems", and "Tradenames" and "Trademarks", shall have the
respective meanings assigned to them in the PHS License.

         B.       HBT formed Phoenix Gas Systems LLC ("PGS") as a California
limited liability company, and currently has a ninety-seven percent (97%)
membership interest in the profits and losses of PGS. Two parties now have the
right to acquire from PGS an additional 2% membership interest, which would
reduce HBT's interest to 95%. It is possible that a strategic partner may
acquire from PGS an additional 5% membership interest for no less than
$1,250,000 before or after Sofinov has made its contribution, which would
decrease the Membership Interests of HBT and the Sofinov Affiliate referred to
below.

         C.       To partially exploit the UOB-TM- Technology, HBT granted a
license (the "PGS License") to PGS with respect to the field of use described
therein.

         D.       HBT requires additional capital to exploit the UOB-TM-
Technology, which Sofinov has agreed to provide by acquiring a membership
interest in PHS (as defined in Paragraph E below) and PGS subject to the terms
and conditions herein set forth.

         E.       HBT and Sofinov have agreed to form a California limited
liability company, which will be known as Phoenix Hydrogen Systems LLC ("PHS"),
for exploitation of the UOB-TM- Technology. To that end, HBT will license to PHS
the Licensed UOB-TM- Patents, the UOB-TM- Technology, the Tradenames and
Trademarks in contemplation of PHS being a sublicensor to PGS and one or more
other operating companies.

                  NOW, THEREFORE, FOR GOOD AND VALUABLE CONSIDERATION, HBT AND
SOFINOV AGREE AS FOLLOWS:

                  1.       FORMATION OF PHS. On or before the Closing Date (as
defined in Section 2.1 below) HBT and one of the "Sofinov Affiliates" (as
described below), shall file Articles of Organization for PHS and execute an
Operating Agreement for PHS substantially in the form attached hereto as Exhibit
A. Appropriate provisions of this Formation Agreement will be incorporated in
said Operating Agreement for PHS.

                                       1
<PAGE>

                  2.       INVESTMENT BY SOFINOV AND HBT IN PHS.

                           2.1      AMOUNT AND TIMING OF INVESTMENT BY SOFINOV.
Subject to the conditions precedent set forth in Section 2.2 below, Sofinov,
through two affiliates (each a "Sofinov Affiliate" and both, the "Sofinov
Affiliates") shall contribute Four Million Dollars ($4,000,000) (the "Sofinov
Contribution") in the aggregate to the capital of PHS and PGS and acquire a
30% membership interest in PHS (the "PHS Interest") and a membership interest
in PGS equal to 30% of HBT's membership interest in PGS immediately preceding
this transaction subject to the provisions of Paragraph B on page 1 hereof (the
PGS Interest," and together with the PHS Interest, the "Interests"). The
Sofinov Contribution shall be made on August 23, 1996 or such other date as the
parties may reasonably agree upon (the "Closing Date"), at a closing (the
"Closing") to be held at the offices of Alschuler Grossman & Pines LLP, 2049
Century Park East, 39th Floor, Los Angeles, California 90067.

                           2.2      CONDITIONS TO CLOSING. Sofinov's obligation
to make the Sofinov Contribution is conditioned upon the occurrence of each of
the following, each, any or all of which may be waived by Sofinov.

                                    A.       The PGS License shall have been
assigned by HBT to PHS and shall have been modified to conform to the
requirements of the PHS License (including its conversion into a sublicense) and
this Formation Agreement. The form of the PGS License, as so amended, is
attached hereto as Exhibit B.

                                    B.       HBT and PHS shall have executed a
license (the "PHS License") (in the form attached hereto as Exhibit C), whereby
HBT grants to PHS, in perpetuity (but in the event this is not permitted then
for the longest period permitted by law), subject only to the provisions of the
PGS License (as amended) as to a certain field of use, an exclusive,
irrevocable worldwide license for the use, exploitation, and sublicense of the
Licensed UOB-TM- Patents, the UOB-TM- Technology and the Tradenames and
Trademarks.

                                    C.       The members of PGS shall have
executed a revised Operating Agreement for PGS to conform to the requirements
of this Formation Agreement substantially in the form attached hereto as
Exhibit D.

                                    D.       Each of the agreements referred to
in Schedule A hereto (collectively, along with this Formation Agreement,
referred to as the "Documents") shall have been duly executed and delivered; and
each act required by the Documents shall have been performed.

                                    E.       RIGHT OF FIRST REFUSAL GRANTED BY
HBT SHAREHOLDERS. HBT shall have delivered to Sofinov an agreement (the "First
Refusal Agreement") executed by each of the current shareholders of HBT (in the
form attached hereto as Exhibit E) granting to Sofinov a right of first refusal
to purchase the HBT shares owned by them. HBT shall require that any new
shareholder of HBT execute the First Refusal Agreement as a condition to
acquiring any shares of HBT, and HBT shall amend its Articles of Incorporation,
if required,

                                       2
<PAGE>

and legend each of its share certificates to provide notice that the shares of
HBT are subject to the terms and conditions of a First Refusal Agreement dated
as of August 23, 1996, a copy of which is available for examination in HBT's
office.

                                    F.       All corporate and other proceedings
to be taken and all waivers and consents, approvals, qualifications and/or
registrations required to be obtained or effected in connection with the
issuance, execution, delivery and performance of the Documents and transactions
contemplated thereby shall have been taken, obtained or effected and all
documents incident thereto shall be satisfactory in form and substance to both
parties. Any filings required to be made to the State of California in
connection with the formation of PHS shall have been made.

                                    G.       Sofinov shall have received from
counsel for HBT its attorney's opinion letter addressed to Sofinov, dated as
of the Closing Date, substantially in the form attached hereto as Exhibit F.

                                    H.       The benefits of each
UOB-TM- Technology Contract (as defined in Section 7.12) covered by the PGS
License shall have been assigned to PGS.

                                    I.       HBT and PGS shall not, between the
date of this Formation Agreement and the Closing Date, have (i) suffered any
material adverse change; or (ii) entered into any material contract, including
the sale of shares or issuance of membership interest, except as contemplated by
Paragraph B of the Preamble and Sections 2.1 and 2.3 hereof. HBT and PGS shall,
between the date of this Formation Agreement and the Closing Date, have operated
their businesses in the ordinary course.

                                    J.       Each representation and warranty
made by each party hereto shall be true, complete and correct in all material
respects on and as of the Closing Date.

                           2.3      INVESTMENT BY HBT. On or before the Closing
Date, HBT shall contribute to PHS the PHS License which the parties agree has a
fair market value of Nine Million Three Hundred Thirty Three Thousand Three
Hundred Thirty Three Dollars ($9,333,333). In consideration thereof, HBT will
receive a 70% membership interest in PHS.

                           2.4      STRUCTURING. HBT acknowledges that it has
been advised that (a) Sofinov intends to ultimately dispose of the interests and
any other interest it may acquire in any other operating company yet to be
created to exploit the Licensed UOB-TM- Patents and the UOB-TM- Technology, such
disposal to be effectuated by means of a sale of stock in a corporation, (b)
Sofinov will make its investments in PHS, PGS and all other operating companies
through one or more entities controlled by Sofinov, and (c) each such separate
entity may be merged or otherwise consolidated with PGS or another operating
company, as the case may be, concurrently with or following the incorporation of
such operating company in anticipation of an Initial Public Offering or
otherwise. Each party shall use its best efforts to accommodate the others'
structuring needs and preferences.

                                       3
<PAGE>

                           2.5      USE OF SOFINOV CONTRIBUTION. The parties
agree that the Sofinov Contribution will be used consistent with the uses
described in Schedule B hereto.

                  3.       RESTRICTION ON TRANSFERS AND HYPOTHECATION. HBT
agrees that it will not voluntarily or by operation of law, assign, hypothecate,
give, transfer, mortgage, sublet, license, or otherwise transfer or encumber, or
allow a lien to be placed upon all or any part of the Licensed UOB-TM- Patents
or the UOB-TM- Technology.

                  4.       PARTICIPATION IN HBT BOARD MEETING. At all times
while Sofinov has any interest of no less than ten percent (10%) in PHS, PGS or
any affiliate of either of them (including the operating companies to be formed
pursuant to Section 8) HBT shall give written notice (the "Meeting Notice") to
Sofinov prior to each meeting or action in lieu of a meeting by HBT's Board of
Directors (the "HBT Board"). The form, substance and date of delivery of each
Meeting Notice shall be identical to the notices given to each member of the HBT
Board. Sofinov shall be permitted to designate one or more nominees (but only
one at a time) who shall be permitted to attend and participate in, but not vote
at, each meeting of the HBT Board. The action taken by the HBT Board in
approving the execution of this Formation Agreement and the consummation of the
transactions contemplated hereby shall be deemed to be the approval of the HBT
Board of this Section 4. If requested by Sofinov, HBT shall amend its By-Laws or
other organizational documents to reflect and evidence the obligations described
hereunder.

                  5.       REIMBURSEMENT FOR CERTAIN FEES AND COSTS. PHS shall,
(a) upon demand by Sofinov (which demand may only be made if and after the
Sofinov Affiliate has made the Sofinov Contribution) reimburse Sofinov for legal
fees and expenses incurred by Sofinov, and (b) upon demand by HBT reimburse HBT
for reasonable legal fees and expenses incurred by HBT; in the case of each of
Sofinov and HBT, up to a maximum of Fifty Thousand Dollars ($50,000), in
connection with the negotiation and preparation of the Documents and
transactions referred to herein.

                  6.       REPRESENTATIONS AND WARRANTIES BY SOFINOV. Sofinov
represents and warrants to HBT as follows:

                           6.1      ORGANIZATION; POWER AND AUTHORITY OF
SOFINOV. Sofinov is a corporation duly organized, validly existing and in good
standing under the laws of the Province of Quebec, Canada with the requisite
corporate power and authority to own, lease and operate its properties, to carry
on its business as presently conducted and as proposed to be conducted and to
carry out the transactions contemplated by this Formation Agreement and the
other Documents executed by it.

                           6.2      ORGANIZATION; POWER AND AUTHORITY OF THE
SOFINOV AFFILIATES. On or prior to the Closing Date, each of the Sofinov
Affiliates will be a corporation and/or limited liability company (as the case
may be) duly organized, validly existing and in good standing under the laws of
the State of California, each with the requisite power and authority to own,
lease and operate its properties, to carry on its business as presently
conducted and as

                                       4
<PAGE>

proposed to be conducted and to carry out the transactions contemplated by
this Formation Agreement and the other Documents executed in connection with
any of the foregoing.

                           6.3      INVESTMENT INTENT.

                                    A.       Sofinov and the Sofinov
Affiliates will be acquiring the Interests for their own account, for
investment and not with a view to the distribution thereof within the meaning
of the Securities Act of 1933.

                                    B.       Sofinov understands that (i) the
Interests have not been registered under the Securities Act of 1933 and (ii)
the Interests must be held by the Sofinov Affiliates unless a subsequent
disposition thereof is registered under the Securities Act of 1933 or is
exempt from registration thereunder.

                                    C.       Sofinov represents that it has
not employed any broker or finder in connection with the transactions
contemplated by this Formation Agreement.

                                    D.       Sofinov further represents that
it and the Sofinov Affiliates are (or, as applicable, will be) each an
"accredited investor" within the meaning of Rule 501 under the Securities Act
of 1933.

                           6.4      AUTHORIZATION. The execution and delivery
of this Formation Agreement and the other Documents to which Sofinov or any
Sofinov Affiliate, as each appears as a party to each of these agreements, is
or will be a party have been duly authorized by each (as applicable) and this
Formation Agreement and the other Documents are valid and legally binding
obligations of Sofinov or any such Sofinov Affiliate, as the case may be,
enforceable against it in accordance with their respective terms.

                           6.5      CONFLICT. The execution, delivery and
performance by Sofinov or any Sofinov Affiliate, as the case may be, of this
Formation Agreement and the other Documents to which each is a party do not
violate, conflict with or constitute a breach or default in any material
respect under any material contract, agreement or instrument to which Sofinov
or any such Sofinov Affiliate is a party or by which either is bound.

                           6.6      CONTINUING EFFECT OF REPRESENTATIONS.
Each representation made in this Section 6 and elsewhere in the Formation
Agreement shall be true, correct and complete in all material respects as of
the Closing Date.

                  7.       REPRESENTATIONS AND WARRANTIES BY HBT. HBT
represents and warrants to Sofinov as follows:

                           7.1      ORGANIZATION; POWER AND AUTHORITY. HBT is
a corporation duly organized, validly existing and in good standing under the
laws of the State of California with the requisite corporate power and
authority to own, lease and operate its properties, to carry

                                       5
<PAGE>

on its business as presently conducted and as proposed to be conducted and to
carry out the transactions contemplated by this Formation Agreement and the
other Documents.

                           7.2      CORPORATE POWER; AUTHORIZATION OF THE
DOCUMENTS; NO CONFLICTS. HBT has the corporate power to execute, deliver and
perform its obligations under this Formation Agreement and the other
Documents to which it is a party. The execution, delivery and performance by
HBT of the Documents to which it is a party have been duly authorized by all
requisite corporate and shareholder action by HBT and each such Document
constitutes a legal, valid and binding obligation of HBT, enforceable against
it in accordance with its terms. The execution, delivery and performance of
the Documents to which HBT is a party and the consummation of the
transactions contemplated thereby and compliance with the provisions thereof
by HBT, the acquisition by Sofinov of the Interests and the contribution of
the PHS License will not (a) violate or conflict with any provision of any
applicable law, or any ruling, writ, injunction, order, judgment or decree of
any governmental authority (a "Judgment") applicable to HBT, PHS or PGS or
any of their respective properties or assets, (b) conflict with or result in
any breach of any of the terms, conditions or provisions of, or constitute
(with due notice or lapse of time, or both) a default (or give rise to any
right of termination, cancellation or acceleration) under any note,
indenture, guaranty or mortgage or any material lease, license, franchise,
contract, agreement, commitment, arrangement, understanding or instrument,
oral or written, to which HBT, PHS or PGS is a party or by which any of
their respective properties or assets is bound or affected or (c) result in
the creation or imposition of any encumbrance upon any of the material
properties or assets of HBT, PHS or PGS.

                           7.3      AUTHORIZATION. The authorization,
issuance, and delivery of the Interests has been duly authorized by all
requisite corporate and shareholder action of HBT and manager and member
action of PHS and PGS and, when issued and delivered in accordance with the
terms of the Documents, the Interests will be validly issued and outstanding,
fully paid and nonassessable with no personal liability attaching to the
ownership thereof, and not subject to preemptive or any other, similar
rights. The terms, designations, powers, preferences and relative
participating, optional and other special rights, and the qualifications,
limitations, and restrictions, of the Interests are as stated in the
respective Operating Agreements for PHS and PGS.

                           7.4      NO CONSENT OR APPROVAL REQUIRED. No
consent of any natural person, company, partnership, joint venture,
corporation, business trust, unincorporated organization or other entity (a
"Person") and no consent, approval or authorization of, or declaration to or
filing with, any federal, state, municipal or other government department,
commission, board, bureau, agency or instrumentality, or any court, arbitral
tribunal or arbitrator, and any nongovernmental regulating body, to the
extent that the rules and regulations or orders of such body have the force
of law, in each case whether of the United States of America or any foreign
country (a "Governmental Authority"), is or will be required for the valid
authorization, execution and delivery of any Document to which HBT, PHS or
PGS is a party or for the consummation of the transactions contemplated
thereby, or for the valid authorization, issuance and delivery of the
Interests, other than those consents,

                                       6
<PAGE>

approvals, authorizations, declarations or filings which have been obtained
or made, as the case may be.

                           7.5      PROPRIETARY RIGHTS.

                                    A.       HBT is the sole owner of, and
has the sole right to use, the Licensed UOB-TM- Patents, the UOB-TM-
Technology, the Tradenames and the Trademarks, free and clear of any liens,
claims, encumbrances or other rights, subject only to the PHS, License and
the PGS License.

                                    B.       The Licensed UOB-TM- Patents and
the UOB-TM- Technology (as of the Closing Date) represent all of HBT's rights
in or relating to all inventions, technology and information acquired by or
licensed to HBT relating to the UOB-TM-.

                                    C.       Following its due execution and
delivery, the PHS License will be a valid and legally enforceable agreement.

                                    D.       Except as set forth in the PHS
License and the PGS License, no royalties, percentages, honoraria, fees or
payments of any kind are or will be payable by PHS and PGS, respectively, to
any other Person by reason of their respective exploitation and use of the
Licensed UOB-TM- Patents and the UOB-TM- Technology.

                                    E.       HBT has no knowledge, and has no
reason to believe that (a) any of the rights associated with the PHS License
and the PGS License violate, or will violate any contract of HBT with any
Person, or infringes, or will infringe, any intellectual property rights of
any Person, and (b) there exists any prior art that is more pertinent to the
patentability of the UOB-TM- Technology than the references cited by the U.S.
Patent and Trademark Office in connection with prosecution of the Licensed
UOB-TM- Patents (as of the Closing Date). There is no pending nor threatened
claim nor litigation contesting the validity of or HBT's exploitation rights
in and to the UOB-TM- Technology nor has HBT received any notice that any of
the UOB-TM- Technology conflicts, or will conflict, with the asserted rights
of others.

                                    F.       Following modification of the
PGS License, as provided above, neither PGS (except under the PHS/PGS
License) nor any other Person (other than PGS, Southern California Gas
(pursuant to the agreement described in Section 7.5G below), and Unitel
(pursuant to the agreement described in Section 7.5G below), will have any
exploitation rights or any other rights in and to the Licensed UOB-TM-
Patents or the UOB-TM- Technology.

                                    G.       Except for (i) the PHS License,
(ii) the PGS License, (iii) the Agreement for Hydrogen Producing
Underoxidized Burners dated June 15, 1993, between HBT and the Southern
California Gas Company, and (iv) the Agreement dated March 28, 1996 between
HBT and Unitel Technologies, Inc. for distribution of UOB-TM- Systems in
India, HBT on behalf of itself, PGS, PHS or any other Person, has not granted
or transferred,

                                       7
<PAGE>

or agreed to grant or transfer, any exploitation rights or other right or
interest in and to the Licensed UOB-TM- Patents or the UOB-TM- Technology,
except that PGS has entered into a loan and security agreement with
Peter/Mat Partners and others dated July 1, 1996, pursuant to which PGS has
granted to Peter/Mat a security interest in all of PGS, equipment and
inventory.

                           7.6      LITIGATION. There is no action, suit,
claim, arbitration, proceeding or investigation at law or in equity or by or
before any Governmental Authority now pending or threatened against or
affecting HBT, PGS, PHS, the Licensed UOB-TM- Patents, the UOB-TM-
Technology, the Tradenames or the Trademarks. There are no judgments to which
HBT or PGS is a party or by which any of its properties or assets are bound.

                           7.7      NO DEFAULTS. Neither HBT nor PGS is in
default under its Articles of Incorporation or By-Laws or its Articles of
Organization, as applicable, or any Contract (as defined in Section 7.12).
There exists no condition, event or act which constitutes, or which after
notice, lapse of time or both, would constitute, a default under any of the
foregoing.

                           7.8      EQUITY INVESTMENTS. Except for its
interest in PHS (when formed), PGS and its former interest in PGS, Inc., a
California corporation that was dissolved in December 1995, HBT has never
had, nor does it presently have, any subsidiaries, nor has it owned, nor does
it presently own, any capital stock or other proprietary interest, directly
or indirectly, in any Person.

                           7.9      CAPITALIZATION. The authorized and issued
capital stock of HBT and the owners thereof are as set forth in Schedule C
hereto.

                           7.10     PGS INTEREST. The membership interests
in, and the capital contributions to, PIGS are as reflected in Schedule D
attached hereto. Prior to the Closing Date, HBT will not transfer or issue,
or cause or allow PGS to transfer or issue, any other interest in the
profits and losses of PGS, except that HBT shall, at any time prior to the
Closing Date be permitted (after notice to Sofinov) to cause PGS to issue to
a strategic partner a five percent (5%) interest in the profits and losses of
PGS for a capital contribution, in cash, of no less than One Million Two
Hundred Fifty Thousand Dollars ($1,250,000).

                           7.11     TRUE AND CORRECT COPIES. From the
inception of the relationship between HBT and Sofinov until the date of
execution of this Formation Agreement each party has delivered, or caused to
be delivered, to the other copies of agreements, correspondence and other
documents (collectively, the "Due Diligence Documents"). Each of the Due
Diligence Documents is (and will be) a true and correct copy of its original,
unless a copy of a copy, in which event it is (and will be) a true and
correct copy of such copy.

                           7.12     MATERIAL CONTRACTS. Attached hereto as
Schedule E is a complete and accurate list of all material contracts,
indentures, mortgages, agreements, leases, licenses, purchase orders, sales
orders, and other instruments to which either HBT or PGS is a party or by
which either of them is bound (the "Contracts"). All of the Contracts listed
on Schedule E

                                       8
<PAGE>

are in full force and effect and are valid and binding obligations of the
parties thereto. To the knowledge of HBT, no party to a Contract has given
notice of termination of, or taken any action inconsistent with the
continuation of, the Contract. HBT has provided to Sofinov complete and
accurate copies of each Contract listed on Schedule E. Each contract and
sales order entered into by HBT or PGS in connection with the exploitation of
the UOB-TM- Technology is listed on Schedule E, and is so identified (the
"UOB-TM- Technology Contracts").

                           7.13     COMPLIANCE WITH LAW. To the best of HBT's
knowledge and belief, the UOB-TM- Technology and each product produced as a
result of the exploitation of the UOB-TM- Technology complies with all United
States laws which govern the development, use, or sale of the UOB-TM-
Technology.

                           7.14     CONTINUING EFFECT OF REPRESENTATIONS.
Each representation made in this Section 7 and elsewhere in this Formation
Agreement shall be true, correct and complete in all material respects as of
the Closing Date.

                  8.       FORMATION OF OPERATING COMPANIES.

                           8.1      OPERATING COMPANIES. Sofinov and HBT
intend to create and own a variety of operating companies. Each operating
company shall sublicense from PHS the right to use the Licensed UOB-TM- Patents,
the UOB-TM- Technology, the Tradenames and the Trademarks in the exploitation of
a specified field of use for the UOB-TM- Technology. All of the terms,
conditions, rights, obligations, and requirements described in this Section 8
shall apply to each of the operating companies so formed, including PGS, and
shall be set forth in the operating agreement and/or other appropriate
operational or organizational document for each of the operating companies as
required.

                           8.2      OWNERSHIP INTERESTS.

                                    A.       Except for PGS, each operating
company shall be owned as to (a) 70% by HBT; and (b) 30% by one or more newly
formed California corporations (or limited liability companies), each of
which shall be 100% owned by one or more companies designated by Sofinov (the
"Sofinov Subsidiary"); provided, however, that each operating company's
ownership shall be subject to dilution as described below.

                                    B.       Upon the agreement of Sofinov
and HBT to form a new operating company to exploit a new field of use of the
UOB-TM- Technology, Sofinov (through the Sofinov Subsidiary) shall have the
first right to make the full amount of the required capital investment, or a
lesser contribution. If the Sofinov Subsidiary elects to make the full
investment, the new operating company shall be owned 70% by HBT and 30% by
the Sofinov Subsidiary. If Sofinov declines to make the full investment, or
Sofinov and HBT do not agree on the ownership interest that the Sofinov
Subsidiary would receive in exchange for its capital contribution, the
parties may seek a third party investor. If a third party agrees to make the
investment (the "Investment"), HBT's 70% interest and the Sofinov
Subsidiary's 30% interest will be equally diluted (i.e., if the third party
makes the investment for 20% of the company,

                                       9

<PAGE>

both HBT's interest and the Sofinov Subsidiary's, interest will be diluted by
20%, leaving the third party with 20%, HBT with 56%, and the Sofinov
Subsidiary with 24%).

                                    C.       After a third party offer is
made, Sofinov and HBT shall first have a joint right of first refusal, to be
exercised by written notice to be delivered to each other within thirty (30)
days of receipt by both parties of any bona fide third party offer, which the
parties intend to accept, to match the third party offer, Sofinov and HBT
contributing 30% and 70% of the Investment, respectively. In the event that
Sofinov and HBT both elect to exercise their joint right of first refusal,
and make a capital contribution of 30% and 70% respectively of the
Investment, then the percentage ownerships of the Sofinov Subsidiary and HBT
remain at 30% and 70% respectively.

                                    D.       In the event HBT shall not have
accepted, or not timely have accepted, its (joint) right of first refusal in
accordance with Section 8.2C, then Sofinov shall have a right of first
refusal to match the third party offer for such portion of the Investment as
will cause Sofinov to have a percentage interest in the Company which
together with its diluted interest will add up to a maximum of 30%. Such
right of first refusal shall be exercised by written notice to be delivered
to HBT within sixty (60) days of Sofinov's original receipt of the bona fide
third party offer. In that event, the Sofinov Subsidiary will receive a
proportionate ownership in the Company that the third party was to receive,
and it will retain its diluted interest in the Company. (In the case that the
third party was to receive a 20% interest for the entire Investment, the
Sofinov Subsidiary would receive 6% for contributing 30% of the Investment,
plus retaining its 24%, HBT would retain its 56%, and the third party would
receive a 14% interest for contributing 70% of the Investment.)

                                    E.       The number of days within which
the rights of first refusal provided for in Sections 8.2C and 8.2D are to be
exercised shall be proportionally reduced when the third party offer is valid
for a number of days less than sixty-five (65) days.

                           8.3      ROYALTY PAYMENTS FOR RIGHT TO USE THE
UOB-TM- TECHNOLOGY. At the time of the formation of each operating company,
HBT and Sofinov shall mutually agree to the amount of the royalty payment due
from the operating company to PHS in consideration of PHS' sublicensing the
Licensed UOB-TM- Patents, the UOB-TM Technology, the Tradenames and the
Trademarks to the operating company with respect to certain field of use.
Subject to paragraph 7.2 of the PHS License attached hereto as Exhibit C, to
the extent the royalty payments from the operating companies are greater than
the payment due from PHS to HBT, PHS shall retain the difference.

                           8.4      INITIAL PUBLIC OFFERING, REPURCHASE OF
STOCK.

                                    A.       HBT and Sofinov shall use their
reasonable efforts to complete an IPO for each operating company (not HBT),
as soon as market and business conditions warrant.

                                       10
<PAGE>

                                    B.       During the ten (10) year period
following the formation of the operating company (except that for PGS, the
ten (10) year period commences on the Closing Date), the timing, terms and
pricing of any IPO shall be subject to Sofinov's consent, which consent shall
not be unreasonably withheld.

                           8.5      RIGHT OF FIRST REFUSAL; COME ALONG RIGHTS.

                                    A.       The Sofinov Subsidiary and the
Co-Owner(s) of the operating company (as defined in Section 8.7) shall grant
to each other a right of first refusal to match any third party offer
received by either of them for the sale of all or any portion of such party's
interest or stock in the operating company, provided, however, that the
remaining party shall not be required to match any unique terms offered by
the third party but shall instead have the right to offer cash to the selling
party in an amount equivalent to such unique terms.

                                    B.       The Sofinov Subsidiary and the
Co-Owner(s) of the operating company shall grant to each other "come along"
rights, whereby if either of them receives a third party offer for the sale
of all or any portion of such party's interest or stock in the operating
company, the other party shall be permitted to participate, pro rata, in such
sale.

                           8.6      PUT OPTION. Each investment by a Sofinov
Subsidiary in a new operating company (other than PGS) is hereinafter
referred to in this Section 8.6 as an "Investment" or the "Investments" and
the interest (such as, but not limited to membership interests and shares of
stock) evidencing the investment is hereinafter referred to as "Sofinov's
Interest." HBT shall provide to Sofinov and each Sofinov Subsidiary an exit
strategy for each of its Investments by granting to each Sofinov Subsidiary
the options (each, a "Put Option") described in this Section 8.6.

                  Upon a Sofinov Subsidiary's exercise of its Put Option with
respect to its specific Investment, the "Co-Owner(s)" (as that term is
defined below) shall be jointly and severally required to repurchase (subject
to the provisions of Section 8.6K) Sofinov's Interest at its then fair market
value. As used herein, the word "Co-Owner" refers to each person or entity
who is the co-owner, directly or indirectly, of not less than six percent
(6%) of the entity in which the Sofinov Subsidiary has made the Investment.

                  The terms of each Put Option shall be:

                                    A.       For each Investment, each
Sofinov Subsidiary shall have a separate Put Option.

                                    B.       Each Put Option shall terminate
upon the occurrence of an IPO for the company in which the Sofinov Subsidiary
has made the Investment.

                                       11
<PAGE>

                                    C.       The Sofinov Subsidiary may
exercise its Put Option only by giving written notice (the "Exercise Notice")
to the Co-Owner(s) of its intent to so exercise such Put Option.

                                    D.       Each Put Option may be exercised
only on a date that is not earlier than six (6) years after the date that the
Sofinov Subsidiary first made its Investment.

                                    E.       For a period of no less than
thirty (30) days after the Sofinov Subsidiary gives the Exercise Notice, the
Sofinov Subsidiary and the Co-Owners shall attempt to agree upon a price for
Sofinov's Interest. If they are unable to agree, then, on any date which is
more than thirty (30) days after the Exercise Notice, the Sofinov Subsidiary
may notify the Co-Owner(s) (the "Appraisal Notice") that it intends to
determine the fair market value of Sofinov's Interest through an appraisal
mechanism. The Appraisal Notice shall be accompanied by the name of the
Appraiser ("Sofinov's Appraiser") selected by the Sofinov Subsidiary to
appraise Sofinov's Interest. Within thirty (30) days after the Appraisal
Notice, the Co-Owner(s) shall notify (the "Counter-Appraisal Notice") the
Sofinov Subsidiary of the name of the appraiser the Co-Owner(s) has selected
to appraise Sofinov's Interest. During the ninety (90) day period following
the date of the Counter Appraisal Notice the two appraisers shall separately
determine the fair market value of Sofinov's Interest. The operating company
shall provide the Appraisers with an in-house financial statement as close as
possible to the "Exercise Date". The ninety (90) day period shall be extended
by the time it takes to provide the in-house financial statements, including
both Profit and Loss and Balance sheet.

                                    F.       If the Co-Owner(s) fails or
refuses to select an appraiser within the thirty (30) day period, then the
value of Sofinov's Interest as determined by Sofinov's Appraiser shall be
deemed to be its fair market value.

                                    G.       If the fair market value of
Sofinov's Interest, as determined by one of the appraisers, is within ten
percent (10%) of the value as determined by the second appraiser, then the
fair market value shall be deemed to be the average of the two appraisals. If
the difference in the valuations of the two appraisers is more than ten
percent (10%), then the two appraisers shall select a third appraiser (the
"Third Appraiser") who shall, within ninety (90) days after his appointment,
determine the fair market value of Sofinov's Interest, which may not, in any
event, be lower than the lowest nor higher than the highest of the values as
determined by Sofinov's Appraiser and the Co-Owner's appraiser.

                                    H.       Each appraiser selected must be
experienced in appraising businesses of the type being appraised.

                                    I.       The fair market value of
Sofinov's Interest shall be determined without reference to a minority
discount or a control premium.

                                    J.       The Sofinov Subsidiary shall pay
the fees for Sofinov's Appraiser; the Co-owner(s) shall pay the fees for the
Co-Owner's appraiser; and the Sofinov

                                       12
<PAGE>

Subsidiary and the Co-owner(s) shall each pay one half (1/2) of the fees for
the Third Appraiser.

                                    K.       Subject to the provisions of
Section 8.6L, within one hundred twenty (120) days after determination of the
fair market value of Sofinov's Interest (a) the Sofinov Subsidiary shall
transfer the Sofinov Interest to the Co-Owner(s) and (b) the Co-Owner(s) will
pay the Sofinov Subsidiary, in cash, the fair market value for the Sofinov
Interest. The transfer by the Sofinov Subsidiary shall be without any
representations or warranties except that the Sofinov Subsidiary (1) owns the
Sofinov Interest free and clear of any liens or encumbrances and (2) is
lawfully empowered to transfer the Sofinov interest to the Co-Owner(s).

                                    L.       In the event of failure of the
Co-Owner(s) to purchase the Sofinov Interest as described in this Section
8.6, the Co-Owner(s) and Sofinov shall work together, in good faith, to sell
the operating company (or its assets). If the Co-Owner(s) fail to actively
and aggressively market the operating company in good faith (with the active
assistance of Sofinov), and/or if the joint efforts of the Co-Owner(s) and
Sofinov do not result in the sale of such company at the best available price
for a period of one year following the 120 days referred to in Section 8.6K,
then Sofinov (or the Sofinov Subsidiary, as applicable) shall have the right
to vote the shares or ownership interests of the Co-Owner(s) for the sole
purpose of (a) electing a committee of the Board of Directors or Managers
that will be fully authorized to bind such Board of Directors or managers to
pursue a sale of the operating company, and (b) voting as shareholders or
members to approve a sale of the company at a price and on terms that are
reasonably acceptable to Sofinov. The proceeds of the sale of the operating
company pursuant to this Section 8.6L shall be allocated among the
shareholders or members (as the case may be) in accordance with their
respective equity interests in the operating company. Alternatively, the
Sofinov Subsidiary may offer to purchase, for cash, all of the direct or
indirectly held interest of HBT in the operating company at its then current
fair market value, determined in accordance with the appraisal procedures
described in this Section 8.6. The Sofinov Subsidiary shall give HBT written
notice of its offer to purchase, which offer HBT shall accept, and the
closing of the sale shall be consummated within thirty (30) days of the
delivery to HBT of the Sofinov Subsidiary's offer to purchase.

                           8.7      CERTAIN GOVERNANCE ISSUES.

                                    A.       Each operating company
("Company") shall have a board (the "Board") consisting of seven managers (if
an LLC) or seven directors (if a corporation). The members (if an LLC) or the
shareholders (if a corporation) of each Company shall meet at least once per
year. The managers (if an LLC) or the directors (if a corporation) of each
Company shall meet at least once every three (3) months at a meeting of the
Board where the physical presence of four (4) directors or managers including
one (1) Sofinov representative shall constitute a quorum. In the absence of a
quorum in accordance with the preceding sentence, the majority of the
directors or managers present may vote to adjourn the meeting, but no other
business may be transacted. Upon due notice of the adjourned meeting, the

                                       13
<PAGE>

physical presence of four (4) directors or managers shall constitute a quorum
without the physical presence of a Sofinov representative being required.

                  Representation on the Board shall be proportionate to each
member's or shareholder's profit interest in the entity; provided, however,
that so long as Sofinov or a Sofinov Subsidiary is a member or shareholder of
the entity, it will have at least one manager or one director on the Board.
In calculating the representation of Sofinov (or a Sofinov Subsidiary) on the
Board, if there is a fractional interest of 1.5 or more, that interest will
be deemed to be the next highest whole number.

                  The Company shall reimburse the reasonable travel expenses
(not to include first class air travel) incurred by (a) one representative of
each shareholder (if a corporation) or member (if an LLC) in connection with
attending one meeting of the shareholders or members per year, and (b) each
director (if a corporation) or manager (if an LLC) who is not also involved
in the day-to-day management of the Company in connection with attending one
meeting of the Board every three (3) months, it being understood and agreed
that the Company shall not reimburse any travel expenses incurred in
connection with attending meetings other than as herein provided.

                                    B.       More than 50% of the Board, and
more than 50% of the shareholders or members, of each Company shall be
required to approve each of the following actions; provided, however, that so
long as Sofinov or a Sofinov Subsidiary holds any shares of or a membership
interest in the Company, Sofinov or the Sofinov Subsidiary, as a shareholder
or member, and the representative(s) of Sofinov or the Sofinov subsidiary in
his/her position on the Board, must approve each of the following actions):

                                             (a)      Any changes to the
fundamental nature of the Company or the business carried on by it;

                                             (b)      The transfer or other
disposition of all or any substantial portion of the assets of the Company or
any portion of its interest in another company;

                                             (c)      The acquisition of an
interest in any other LLC, corporation, partnership, firm or business,
subject to the provisions of Section 8.9;

                                             (d)      Any agreement, or
modification of an existing agreement, relating to dealings between the
Company and any of its members or shareholders, or affiliates of such members
or shareholders;

                                             (e)      The issuance of any
membership interests, shares of stock whether common or preferred, or any
debt obligations or other instruments convertible into shares, common or
preferred, or membership interests of the Company;

                                       14

<PAGE>

                                             (f)      Any changes in the charter
documents of the Company;

                                             (g)      The liquidation,
dissolution or winding up of the Company;

                                             (h)      Any assignment by the
Company for the benefit of its creditors or the voluntary filing by the Company
of any voluntary plan of reorganization;

                                             (i)      The annual operating and
capital expenditure budget for the Company;

                                             (j)      The annual business plan
for the Company;

                                             (k)      The borrowing of any money
or other incurrence of debt by the Company in excess of $100,000;

                                             (l)      The voluntary creation of
any lien against any of the assets of the Company;

                                             (m)      Any "Distribution" (as
that term is defined in the California Corporations Code) or any loan to any
officer, director, manager, employee, shareholder, member (or any affiliate of
any of them); provided, however, that, (i) payments received by PHS pursuant to
paragraph 8.2 of the PGS License shall not be subject to the requirement of
this Section 8.7B, and (ii) so long as the Distribution does not violate any
insolvency test or other applicable provision of the law of the jurisdiction is
which the Company was formed or incorporated, the Board of the Company shall for
each fiscal year approve a cash distribution in an amount no less than 40% of
the net income allocated to each member or shareholder of the Company; and

                                             (n)      Subject to Section 8.7D
hereof, any transaction (a) between the Company and any director, shareholder,
manager, or member (collectively, a "Related Party") or any Affiliate (as
defined below) of a Related Party; or (b) between the Company and any other
person or other entity in which a Related Party or an Affiliate of a Related
Party has a material financial interest. For purposes of this Formation
Agreement, "Affiliate" shall mean any individual, partnership, corporation,
trust, limited liability company, or entity or association, directly or
indirectly, through one or more intermediaries, controlling, controlled by or
under common control with any Related Party.

                                    C.       So long as Sofinov or a Sofinov
Subsidiary holds any shares of or a membership interest in the Company, the
Company will first, in good faith, advise, consult with, and request the non-
binding recommendation of the Sofinov Subsidiary, and thereafter obtain the
approval of more than 50% of the Board, and of more than 50% of the Shareholders
or Members, with respect to the following actions:

                                       15
<PAGE>

                                             (1)      The granting of any
exclusive territories, applications or other rights with respect to all or any
portion of the UOB-TM- Technology or any field of use;

                                             (2)      The contract terms on
which key employees of the Company are hired, including, without limitation,
salary range and length of contract.

                                    D.       Notwithstanding Section 8.7B(n)
hereof, the CEO of the Company shall be permitted to cause the Company to enter
into any agreement with HBT for continued research and development work and
improvements of the UOB-TM- Technology that shall have been included in the
Company's annual business plan so long as (i) any such agreement does not create
obligations for the Company in excess of $50,000, (ii) all such agreements
together do not create obligations for the Company in an aggregate amount
exceeding $300,000 during any fiscal year, and (iii) in each instance that the
CEO causes the Company to enter into such agreement he shall report such event
at the next meeting of the Board of Managers.

                           8.8      FINANCIAL STATEMENTS. Each operating company
shall maintain its books and records in accordance with generally accepted
accounting principles in the United States, consistently applied, and shall have
its financial records audited on an annual basis by a nationally recognized
accounting firm that is mutually acceptable to HBT and Sofinov. Each operating
company shall:

                                    A.       Ninety (90) days following the end
of its fiscal year provide, without cost, to each member (if an LLC) or
shareholder (if a corporation) financial statements which shall have been
audited (unless with respect to any subsidiary, the Board of the operating
company has not required that its annual financial statements be audited) by the
auditors of the operating company.

                                    B.       Sixty (60) days following the end
of each of the quarters in its fiscal year, provide, without cost, to each
member (if an LLC) or shareholder (if a corporation) unaudited quarterly
financial statements, certified to be true and correct by the Chief Financial
Officer or most senior officer of the operating company, as well as management
reports signed by the CEO of the operating company.

                                    C.       Thirty (30) days preceding the end
of any fiscal year, provide, without cost, to each member (if an LLC) or
shareholder (if a corporation) a detailed capital expenditure, operating and
research and development budget for the operating company and any subsidiary
(unless, with respect to any subsidiary, the Board of the operating company has
not required it to prepare any one or more of such budgets) covering all of the
next fiscal year.

                                    D.       Without cost, provide, upon demand,
to each member (if an LLC) or shareholder (if a corporation) any other
information which the latter may, from time to time, reasonably require.

                                       16
<PAGE>

                                    E.       The same obligations as those
provided for in Sections 8.8A through 8.8D above shall apply to any subsidiary
of the operating company (except to the extent that the Board of its parent
operating company has waived such requirement pursuant to Sections 8.8A and/or
8.8C).

                           8.9      LIMITATIONS ON RESTRICTIONS. Without
negating any of the foregoing rights set forth in this Section 8, which shall
apply to the formation and operation of each operating company, Sofinov shall
not prevent the formation of a new operating company for the exploitation of
UOB-TM- Technology for a new field of use. The restrictions described in this
Section 8 shall terminate as to each operating company for which there is an IPO
concurrently with the IPO for such Company, or when Sofinov, one of the Sofinov
Affiliates or a Sofinov Subsidiary no longer owns stock or a membership interest
in the Company.

                           8.10     INJUNCTIVE RELIEF. HBT acknowledges that the
rights, obligations, and limitations in this Section 8 are of unique importance
to Sofinov, and that breach by HBT of any of the terms of this Section 8 will
result in irreparable harm to Sofinov that cannot be compensated by monetary
damages. Therefore, in the event of a breach or threatened breach of this
Section 8, Sofinov shall have the right to seek temporary and permanent
injunctive relief, (including for, but not limited to, the purpose of seeking or
obtaining interim injunctive relief in order to preserve the status quo pending
conclusion of an arbitration proceeding pursuant to Section 9.10) in the
Superior Court of Los Angeles County, Central District without being required
to post a bond or other security, provided, however, that Sofinov shall not seek
to stop the day-to-day operations of any Company which are carried out in the
ordinary course of its business. If appropriate, Sofinov will promptly proceed
to commence an arbitration proceeding in accordance with Section 9.10.

                  9.       MISCELLANEOUS.

                           9.1      INTEGRATION. This Formation Agreement
constitutes the entire agreement and understanding of the parties with respect
to the transaction contemplated hereby. Except for that certain confidentiality
agreement by and between HBT and Sofinov dated October, 1995, all of the terms
of which remain in full force and effect, this Formation Agreement supersedes
all prior agreements, arrangements and understandings related to the subject
matter hereof. No representation, promise, inducement or statement of intention
has been made by any of the parties hereto not embodied in this Formation
Agreement or in the documents referred to herein, and no party shall be bound
by, or liable for, any alleged representation, promise, inducement or statements
of intention not set forth or referred to herein.

                           9.2      GOVERNING LAW, JURISDICTION AND VENUE. This
Formation Agreement shall be governed by, and construed and enforced in
accordance with, the laws of the State of California.

                                       17
<PAGE>

                           9.3      BINDING EFFECT. All of the terms, covenants,
representations, warranties and conditions herein shall be binding upon, and
inure to the benefit of, and be enforceable by, the parties hereto, and their
respective successors, assignees and delegates, including, but not limited to,
successor corporations.

                           9.4      WAIVER. This Formation Agreement may not be
amended, modified, superseded or cancelled, nor may any of the terms, covenants,
representations, warranties or conditions hereof be waived, except by a written
instrument executed by the party against whom such amendment, modification,
supersedure, cancellation or waiver is charged. The failure of any party at any
time or times to require performance of any provision hereof shall in no manner
affect the right at a later time to enforce the same. No waiver by any party of
any condition, or of any breach of any term, covenant, representation, or
warranty contained herein, in any one or more instances, shall be deemed to be
or construed as a further or continuing waiver of any such condition or breach
or waiver of any other condition or of any breach of any other term, covenant,
representation or warranty.

                           9.5      CONSTRUCTION. The captions and headings
contained herein are for convenient reference only, and shall not in any way
affect the meaning or interpretation of this Formation Agreement. All references
in this Formation Agreement to a "person" mean and refer to natural persons,
partnerships, corporations, trusts, associations, governmental agencies and any
other entity of any kind whatsoever. Notwithstanding any rule or maxim of
construction to the contrary, any ambiguity or uncertainty in this Formation
Agreement shall not be construed against either party based upon authorship of
any of the provisions hereof.

                           9.6      COUNTERPARTS AND FACSIMILE SIGNATURES. This
Formation Agreement may be executed by facsimile signature and executed in two
or more counterparts, each of which shall be deemed an original, and all of
which together shall constitute one and the same instrument.

                           9.7      ATTORNEYS' FEES. In the event that any party
shall bring an action in connection with the performance, breach or
interpretation of this Formation Agreement, or in any action related to the
transaction contemplated hereby, the prevailing party in such action, as may be
determined by the court or other tribunal (such as the Arbitrator) having
jurisdiction, shall be entitled to recover from the losing party in such action,
also as determined by the court or other tribunal having jurisdiction, all
actual costs and expenses of such litigation, including attorneys' fees, court
costs, costs of investigation, accounting, and other costs reasonably related to
such litigation, in such amount as may be determined in the discretion of the
court or other tribunal having jurisdiction of such action.

                           9.8      SEVERABILITY. In the event that any
provision hereof is determined to be illegal or unenforceable, such
determination shall not affect the validity or enforceability of the remaining
provisions hereof, all of which shall remain in full force and effect.

                                       18
<PAGE>

                           9.9      FURTHER DOCUMENTS. The parties each hereby
covenant and agree that, from time to time, after the date hereof, at the
reasonable request of any party, and without further consideration, they will
execute and deliver such other documents and take such other action as may be
reasonably required to carry out in all respects the transactions contemplated
and intended by this Formation Agreement.

                           9.10     ARBITRATION. Any controversy or claim,
whether based on contract, tort, statute, indemnity, or other legal theory
(including but not limited to any claim of fraud or misrepresentation,) arising
out of or related to this Formation Agreement, or any subsequent agreement
between the Parties, shall be settled by arbitration before a retired Judge or
Justice chosen by the parties through the Judicial Arbitration and Mediation
Service ("JAMS") of Los Angeles County. The parties agree that JAMS will provide
a list of five available Judges or Justices from which the parties will choose a
single Judge or Justice to arbitrate their dispute. If the parties cannot agree
on a single Judge or Justice, each party will have the right to reject or strike
up to two (2) Judges or Justices from the list of five. The arbitrator will then
be chosen from the remaining Judge(s) or Justice(s) by blind draw supervised by
JAMS. In rendering his or her award, the retired Judge or Justice ("Arbitrator")
shall have no authority or jurisdiction to modify or change any provision of
this Formation Agreement or to award punitive damages. The Arbitrator shall have
the authority to determine the arbitrability of any dispute between the parties
and shall also have the authority to establish procedural rules to govern the
arbitration of any dispute between the parties. Any judgment upon the award
rendered by the Arbitrator shall be final and binding and may be entered in any
court having jurisdiction thereof.

                           It is agreed that prompt handling and disposition of
any dispute is important to the parties, and the Arbitrator is hereby instructed
to assume adequate managerial initiative and control over discovery and other
aspects of the arbitration proceeding, to schedule prompt and expedited
discovery to be taken by either party, and to expedite the proceeding as much
as he or she deems reasonable, but in all events to try to effect within 180
days of filing, and a final award within 20 days of the close of evidence.

                           9.11     NOTICES. All notices, requests, demands and
other communications required or permitted to be given under this Formation
Agreement shall be in writing and shall be conclusively deemed to have been duly
given (1) when hand delivered to the other party; or (2) when received when sent
by facsimile at the address and number set forth below (provided, however, that
notices given by facsimile shall not be effective unless either (a) a duplicate
copy of such facsimile notice is promptly given by depositing same with
first-class postage prepaid and addressed to the parties as set forth below, or
(b) the receiving party delivers a written confirmation of receipt for such
notice either by facsimile or any other method permitted under this Section 9.
11 additionally, any notice given by facsimile shall be deemed received on the
next business day if such notice is received after 5:00 p.m. (recipient's time)
or on a nonbusiness day; or (3) five (5) business days after the same have been
deposited in a post office with first-class or certified mail, return receipt
requested, postage prepaid and addressed to the parties as set forth below; or
(4) the next business day after the same have been deposited with a national
overnight or next business day delivery

                                       19
<PAGE>

service reasonably approved by the parties (Federal Express, DHL Worldwide
Express and US Express Mail being deemed approved by the parties), postage
prepaid, addressed to the parties as set forth below provided that the sending
party receives a confirmation of delivery from the delivery service provider.

             SOFINOV:      Sofinov Societe Financiere d'Innovation Inc.
                           1981, avenue McGill College
                           Montreal (Quebec) H3A 3C7
                           Canada

                           Attention: President
                           Telephone: (514) 847-2613
                           FAX:              (514) 847-2628

             HBT:          Hydrogen Burner Technology, Inc.
                           3925 East Vernon Street
                           Long Beach, CA 90815
                           Attention:    President
                           Telephone:    (310) 597-2442
                           Fax:          (310) 597-8780

                           9.12     GENDER AND TENSE. As used in this Formation
Agreement, the masculine, feminine and neuter gender, and the singular or plural
number, shall each be deemed to include the other or others whenever the context
so indicates.

                           9.13     TIME. Time is of the essence in this
Formation Agreement.

                           9.14     EXHIBITS. Any exhibit or schedule referred
to in this Formation Agreement shall be attached to this Formation Agreement and
be incorporated into this Formation Agreement by the reference to same.

                           9.15     PARTIES IN INTEREST. Nothing in this
Formation Agreement, whether express or implied, is intended to confer any
rights or remedies under or by reason of this Formation Agreement on any persons
other than the parties to it and their respective successors and assigns, nor is
anything in this Formation Agreement intended to relieve or discharge the
obligation or liability of any third persons to any party to this Formation
Agreement, nor shall any provision give any third persons a right of subrogation
or action over or against any party to this Formation Agreement.

                           9.16     DATE AND DELIVERY OF FORMATION AGREEMENT.
Notwithstanding anything to the contrary contained in this Formation Agreement,
the parties intend that this Formation Agreement shall be deemed effective,
executed and delivered for all purposes under this Formation Agreement, and for
the calculation of any statutory time periods based on the date and agreement
between parties is effective, executed, and/or delivered, as of the date set
forth on the first page of this Formation Agreement.

                                       20
<PAGE>

                           9.17     ASSIGNMENT. Neither party shall voluntarily
or by operation of law assign, hypothecate, give, transfer, mortgage, sublet,
license or otherwise transfer or encumber all or any part of its rights, duties
or other interest in this Formation Agreement or the proceeds thereof,
(collectively "Transfer"), other than the royalties payable to HBT, without the
other party's prior written consent, which consent shall not be unreasonably
withheld or delayed. Any attempt to make a Transfer in violation of this
provision shall be a material default under this Formation Agreement, and any
Transfer in violation of this provision shall be null and void. This Section
9.17 is subject to the provisions of Section 9.10.

                           9.18     COUNTING OF DAYS. If a party is required to
complete the performance of an obligation under this Formation Agreement by a
date certain and such date is a Saturday, Sunday or Federal bank holiday,
collectively, a "Nonbusiness Day," then the date for the completion of such
performance will be the next succeeding day that is not a Nonbusiness Day.

                  10.      EXECUTION OF FORMATION AGREEMENT. Each party has been
represented by counsel in the negotiation and execution of this Formation
Agreement. This Formation Agreement was executed voluntarily without any duress
or undue influence on the part of, or on behalf of, the parties hereto. The
parties acknowledge that they have read and understood this Formation Agreement
and its legal effect.

         IN WITNESS HEREOF, this Agreement is executed in duplicate by the
respective, duly authorized officers of the parties as of the day and year first
above written.

                                  Hydrogen Burner Technology, Inc., a California
                                  Corporation

Attest:                           By:                [ILLEGIBLE]
                                     -------------------------------------------

                                  Its:      President                     8/9/96
                                      ------------------------------------------

                                  Sofinov Societe Financiere d'Innovation Inc.,
                                  a Quebec Corporation

                                  By:                [ILLEGIBLE]
                                     -------------------------------------------

                                  Its:             Attorney-in-fact
                                      ------------------------------------------

                                       21
<PAGE>

                                                                      SCHEDULE A

                         LIST OF SCHEDULES AND EXHIBITS
                         ------------------------------

Schedule A            List of documents (this schedule)

Schedule B            Use of Proceeds of Sofinov Contribution.

Schedule C            HBT authorized and issued stock and the owners.

Schedule D            PGS Membership Interests and Capital Contributions.

Schedule E            Material contracts to which HBT or PGS is a party,
                      including UOB-TM- Technology contracts.

Exhibit A             PHS Operating Agreement

Exhibit B             PGS License

Exhibit C             PHS License

Exhibit D             PGS Operating Agreement

Exhibit E             First Refusal Agreement

Exhibit F             Form of Stell Opinion Letter

                                       22
<PAGE>

                                   SCHEDULE B
                               FORMATION AGREEMENT

                              INITIAL FLOW OF FUNDS
                             FROM SOFINOV TO PGS/PHS

                        HYDROGEN BURNER TECHNOLOGY, INC.

                From PHS        License Fee                  $250,000
                From PHS        Reimburse Due Diligence        50,000
                Net Received                                 $300,000

<TABLE>
<CAPTION>
PHOENIX HYDROGEN SYSTEMS                             PHOENIX GAS SYSTEMS
<S>           <C>            <C>                  <C>           <C>              <C>
From Sofinov  Funding         2,000,000           From Others   Funding          $1,250,000
To HBT        License Fee      (250,000)          From Sofinov  Funding           2,000,000
To HBT        Due Diligence     (50,000)          Balance       Business Plan    $3,250,000
To Sofinov    Due Diligence     (50,000)          Note: The funds are to be used as follows:
Balance       Reserves       $1,650,000                         R&D                $500,000
                                                                Marketing           650,000
                                                                Capital Equip.      400,000
                                                                Working Capital   1,700,000
                                                                                 ----------
                                                                Total            $3,250,000
                                                                                 ==========

Note: The $1,650,000 reserves are to be
used to lend to PGS (if needed), to pay
HBT the remaining License Fee when
conditions are met, and to use as the
Board of Managers may direct.

</TABLE>

<TABLE>
<CAPTION>

          SOFINOV                                 PHOENIX FUEL CELL SYSTEMS      PHOENIX COMBUSTION SYSTEMS
<S>       <C>                     <C>             <S>        <C>      <C>        <C>        <C>      <C>
To PHS    Funding                 ($2,000,000)    Future     R&D      $0         Future     R&D      $0
To PGS    Funding                  (2,000,000)
To PFCS   Future                            0
To PCS    Future                            0
From PHS  Reimburse Due Diligence      50,000
Net Paid                          ($3,950,000)
</TABLE>

                                      23

<PAGE>

                                                                      SCHEDULE C

                 HBT AUTHORIZED AND ISSUED STOCK AND THE OWNERS

AUTHORIZED STOCK:    Ten million shares (10,000,000)

<TABLE>
<CAPTION>
ISSUED SHARES: TO WHOM                                           NO. OF SHARES
-----------------------------------------                        -------------
<S>                                                            <C>
        David and Susan Moard                                    = 1,000,000
        Leonard and Rosalind Greiner                             = 1,000,000
        Joseph and Maxine Stell                                  =    35,555
        Ronald and Maryann Stell                                 =    44,444
        Eric and Nancy Stell                                     =     8,889
        Albert M and Thelma S Herzig                             =    44,444
               Co-Trustees of the Herzig
               Family Trust As Amended
        DV and Harriet Wedeman                                   =    44,444
        Thom and Brenda McMahon                                  =    44,444
        John and Linda Okerblom                                  =    24,000
        Barry Bhatt                                              =    44,444
                                                                   ---------
                             TOTAL SHARES ISSUED                 = 2,290,664
</TABLE>

                                       24

<PAGE>

                                   SCHEDULE D
                               FORMATION AGREEMENT

Schedule of Phoenix Gas Systems LLC Membership Interests:

<TABLE>
<CAPTION>
<S>                               <C>                         <C>
Peter Susi                        One Percent (1%)            $250,000
Mathewson Green                   One Percent (1%)            $250,000
Robert Okerblom/Kishor Popat      One Percent (1%)            $250,000
Hydrogen Burner Technology, Inc.  Ninety-Seven Percent (97%)  Value of HBT's
                                                              contribution, by
                                                              mutual agreement, is
                                                              $24,250,000

Options:

Peter Susi                        One Percent (1%)            $250,000
Mathewson Green                   One Percent (1%)            $250,000
</TABLE>

<PAGE>

                                   SCHEDULE E
                              FORMATION AGREEMENT

Schedule of Phoenix Gas Systems LLC existing material contracts:

                  MG Industries contract dated April 21, 1995
                  BOC Gases contract dated November 21, 1995
                  Unitel Technologies contract dated March 28, 1996

Schedule of Hydrogen Burner Technology, Inc.'s existing material contracts:

                  H Power contract dated November 3, 1995
                  Ontario Hydro Technologies contract dated April 12, 1996

<PAGE>

                                                                       EXHIBIT C

                               LICENSE AGREEMENT

                  This License Agreement is entered into between Hydrogen Burner
Technology, Inc., a California corporation (hereinafter "HBT") and Phoenix
Hydrogen Systems LLC, a California limited liability company (hereinafter "PHS")
this 7th day of August, 1996.

                  HBT at this time is primarily a Research and Development
(hereafter "R&D") company. Its present principal product is known as the
Under Oxidized Burner (hereinafter "UOB-TM-"), also known as Partial
Oxidation Reformer. UOB-TM-, as referred to herein, will include all HBT's
patented and patent pending technology, including, but not limited to, the
Under Oxidized Burner, Water Vaporization System, Water and/or Gas Shift
Reactor, Air and Fuel Injectors and Control System Software, all of which is
included within numerous issued and pending patents (or being prepared for
filing), a list of which is attached hereto as Appendix A. In the development
of UOB-TM-, HBT has likewise accumulated considerable know-how, trade
secrets, computer programs, designs, drawings, plans and specifications,
marketing, sales, good will and other information, hereinafter collectively
referred to as "Other Assets." The R&D being performed at HBT is anticipated
to produce alternative sizes, improvements and variations to the issued and
pending patents and the creation of additional inventions which may likely
result in additional patents, know how and trade secrets, all of which are
and will be included within this License.

                  HBT has caused, or will cause, the formation of a Limited
Liability Company under the laws of the State of California using the name
Phoenix Hydrogen Systems LLC (hereinafter "PHS") and intends to own a major
share of PHS' total capital accounts. The other Member of PHS will be an
affiliate (hereinafter "Sofinov Affiliate") of Sofinov-Societe Financiere
d'Innovation Inc., a company incorporated under the Company Act of Quebec
(hereinafter "Sofinov"), which will make one or more contributions, aggregating
Four Million Dollars ($4,000,000) (referred to collectively as the "Sofinov
Contribution"), to PHS and/or Phoenix Gas Systems LLC, the latter being a
California limited liability company (hereinafter "PGS"). One of the purposes of
forming PHS as a separate entity is to commercialize the UOB-TM- in the major
markets of the world, to finance the manufacturing, sales and service of UOB-TM-
throughout the world, and to finance R&D where appropriate to produce
alternatives, different sizes, improvements and additional inventions. PHS will
have two or more members who will contribute property or cash to the LLC.

                  PHS will acquire from HBT a worldwide exclusive license (the
"License") to make, use and sell in perpetuity (but in the event such term is
not permitted, then for the longest period permitted by law), the UOB-TM-
Technology (as hereinafter defined) and service the same in the United States
and appropriate foreign Hydrogen markets, which constitutes substantially all of
the value of the UOB-TM- Technology, subject to the terms and provisions
hereinafter set forth. The license being granted herein is limited only by the
provisions of the license heretofore granted to PGS, as such license is amended
as of the date hereof and converted into a sublicense between PHS and PGS, as to
a limited field of use. A major

<PAGE>

reason for acquiring the License is to permit PHS to sublicense others to make,
use and sell the products made possible with the use of the UOB-TM- Technology.

NOW THEREFORE, in consideration of the above recitals and each and all of the
terms and provisions hereinafter contained it is agreed as follows:

         1.       DEFINITIONS

                  The following words and phrases will have the meanings set
forth below, unless the context requires a different meaning:

                  1.1      "UOB-TM- Technology" shall mean all inventions
technology and information presently known of hereafter developed or acquired by
or licensed to HBT relating to the UOB-TM-, including, but not limited to, the
UOB-TM- Reactor, Water Vaporization System, Water and/or Gas Shift Reactor, Air
and Fuel Injectors, Control System Software, all technology where hydrogen is
used as a fuel for fuel cell systems and combustion systems, or where hydrogen
is used as a feed stock, and any other fields of use (whether known or unknown)
for the U0B-TM- Technology, and all know-how, trade secrets, computer programs,
designs, drawings, plans, specifications, goodwill, and marketing, sales, and
other information of HBT relating to the U0B-TM-, limited only by the terms and
provisions of the license heretofore granted to PGS, as such license is amended
as of the date hereof and converted into a sublicense between PHS and PGS as to
a limited field of use.

                  1.2      "Licensed UOB-TM- Patents" shall mean all patents
relating to the UOB-TM- Technology and including all U.S. patents issued and
issuing from any pending application or from a continuation, continuation in
part, or divisional application which is based, in whole or in part on an
application for one or more of such U.S. patents; all reissues of the foregoing
patents, all foreign counterpart patents which are based, in whole or in part,
on, any of the foregoing applications for U.S. patent; and any other future
patent rights that may be included herein under the provisions of this License
Agreement.

                  1.3      "UOB-TM- System" shall mean the UOB-TM- together with
all ancillary components, or devices, which are especially made or especially
adapted for the construction of systems and which are used along with or are
attached to the U0B-TM- and covered by the License to PHS. The cost of each such
ancillary component or device shall be added to the price of the U0B-TM- to form
the price of a "UOB-TM- System" which will bear the trademark UOB-TM-, which
trademark shall be placed on all equipment components and devices sold by PHS
and/or by any sub-licensee. All patented devices and such ancillary components
and/or devices bearing the trademark UOB-TM- will result in a UOB-TM- System
which will be the basis upon which the total royalty owed to HBT will be
computed.

                  1.4      "Net Selling Price" shall mean invoiced selling
price, f.o.b. PHS' or its sublicensee's facility, after deduction of all regular
and customary trade and quantity discounts, freight allowances, and cash
discounts, but before deduction of agent's commissions.

                                       2
<PAGE>

                  1.5      "Tradenames" and "Trademarks" shall mean the name and
mark UOB-TM-, and any other names or marks now or later adopted, used or
acquired by HBT that refer or relate to the UOB-TM- Technology.

         2.       EXCLUSIVE LICENSE

                  2.1      HBT hereby grants to PHS a world-wide, exclusive and
irrevocable license to make, use, offer for sale, sell, sublicense and otherwise
exploit, in perpetuity (but in the event such term is not permitted, then for
the longest period permitted by law), the Licensed UOB-TM- Patents, the UOB-TM-
Technology and the Tradenames and Trademarks (collectively, the "Licensed
Property"). The license includes all uses, and is subject only to the license to
PGS as such license is amended as of the date hereof and converted into a
sublicense between PHS and PGS.

                  2.2      HBT will promptly disclose to PHS, free of charge, at
HBT's facility in Long Beach, California or its then headquarters, all UOB-TM-
Technology presently known or hereafter developed or acquired by or licensed to
HBT.

                  2.3      HBT's OBLIGATION TO ASSIST PHS

                  HBT agrees, in each instance for the first 24 months that
any new field of use has been developed under this License Agreement and upon
reasonable request by PHS, to cooperate fully to assist PHS (and/or its
sublicensee), free of charge, in the testing, engineering and manufacturing
of UOB-TM- Systems in such new field of use and to consult with and provide
technical assistance and problem solving for UOB-TM- Systems to enable PHS
(and/or its sublicensee) to make, have made, use or sell UOB-TM- Systems in
such new field of use and to generally exercise its rights under the License
granted hereunder. To accomplish such assistance after the first 24 months
with respect to each such new field of use, HBT shall provide free of charge
fifty (50) man-days per calendar year, not including travel time. In each
instance, after said first 24 months, (a) PHS shall reimburse HBT for the
reasonable travel and living expenses incurred by HBT's personnel in
providing such assistance away from HBT's principal office/plant, and (b) HBT
shall, upon request by PHS provide assistance in excess of fifty (50)
man-days, in which event PHS shall pay HBT in accordance with paragraph 2.4.

                  2.4      PHS shall reimburse HBT for training and assistance
in excess of the man-days specified in paragraph 2.3 above at HBT's standard
rate at the time of the request. All such reimbursements shall be made in U.S.
Dollars within thirty (30) days of receipt by PHS of HBT's invoice. A man-day
shall be an eight hour day. The rate for overtime and work over weekends and
holidays shall be negotiated as it is required.

                  2.5      HBT and PHS shall confer, in good faith, on the
inventions and countries for which additional patent protection will continue to
be sought in pending applications, or for which applications for patents will be
prepared, filed and prosecuted on such additional inventions as are presently
known or hereafter developed or acquired by HBT relating to the UOB-TM-
Technology. HBT shall bear all costs associated with any such patent

                                       3
<PAGE>

applications. If HBT fails to pursue such patent protection on an invention or
in a country desired by PHS, then PHS may pursue such patent protection in HBT's
name and if a patent issues, HBT shall reimburse PHS for all reasonable costs
associated therewith.

                  2.6      OBLIGATION TO MARKET AND SELL

                  PHS will in good faith pursue the marketing, manufacture and
sale of the UOB-TM- throughout the world by PGS and its other public.

                  2.7      RELATIONSHIP OF THE PARTIES

                  The relationship of the parties shall be that of independent
contractors, and nothing contained herein shall be deemed to create any
relationship of agency, joint venture, partnership or employment. Neither party
hereto shall have any power to commit, contract for or otherwise obligate the
other to any third person.

                  2.8      HBT will pay all maintenance fees, taxes and
annuities which are necessary to maintain the Licensed Property in full force
and effect for the maximum period provided by law in each country where they
exist. If HBT fails to do so, it will give notice and opportunity to PHS to pay
such maintenance fees, taxes and annuities, and HBT shall reimburse PHS for the
cost thereof, unless it has determined and convinces PHS that it is not
economically productive to spend the money to maintain the patent in any
particular country.

         3.       RESERVED RIGHTS

                  In recognition of the fact that HBT is primarily a research
and development company and that PHS will be primarily depending on HBT for the
development of future inventions, technology, know-how, trade secrets and other
uses for the Licensed Property, HBT will be using the Licensed Property, but
only in connection with research and development work. HBT shall be entitled to
retain all revenue earned directly from this research and development work, but
shall not be permitted to otherwise exploit the Licensed Property on such
research and development work, products and results.

         4.       FURTHER CONCEPTIONS, INVENTION, IMPROVEMENTS

                  4.1      In the event PHS or any of its employees or
sublicensees should conceive of any inventions or improvements to the UOB-TM-,
whether or not PHS or any of its employees, licensees or public shall
apply for a patent thereon and whether or not said inventions or improvements
shall have been reduced to practice, any rights therein or patents resulting
therefrom shall belong to HBT and any patents resulting therefrom shall be
assigned to HBT and, insofar as such rights and/or patents are used or applied
in connection with the UOB-TM- Technology, shall be a part of the License to PHS
without additional cost to PHS. Any agreement of sub-license between PHS and any
proposed sub-licensee shall contain the substance of this paragraph 4.1 as a
part of the agreement.

                                       4
<PAGE>

                  4.2      In consideration of the foregoing, HBT shall grant to
PHS a royalty-free, worldwide, exclusive and irrevocable license with respect to
each such right and/or patent assigned to HBT to make, use, offer for sale,
sell, sublicense and otherwise exploit such right and/or patent. Each such
license shall include all uses and applications other than those which relate to
the UOB-TM- Technology.

                  4.3      PHS shall promptly advise HBT in writing of any such
improvements or inventions referred to in paragraph 4.1 above and disclose to
HBT all information needed by HBT to utilize such improvements or inventions to
the fullest extent possible.

                  4.4      In the event HBT shall receive from any third party a
license or right to make, use or sell any invention, technology, know-how, trade
secret or copyrightable matter which is usable with the UOB-TM- Technology or by
PHS to improve its performance or to broaden its usefulness, HBT shall disclose
the same to PHS, unless prohibited by said third party. HBT shall use its best
efforts to negotiate that such disclosure to PHS shall be permitted subject only
to the same restrictions as those to which HBT shall be submitted. Whenever
reasonably practicable, HBT shall invite PHS to participate in the negotiation
of any such third party license or right. In the event HBT is obligated to pay
any royalty for the use or sublicense of any such third party license or right,
PHS shall, in addition to its royalty payments as provided in this Agreement,
pay to HBT the amount of royalties so paid by HBT plus the reasonable cost of
administrating said use or sublicense. No payments are due by PHS, however, in
the event that such use or sublicense of such third party license permits PHS to
increase the selling price of its product in such amount that the increase in
the royalty to HBT under this License is sufficient to satisfy the obligation of
HBT to such third person plus the reasonable cost of administering said use or
sublicense. In the event the increase is not sufficient for that purpose, then
PHS shall pay to HBT such further sum as shall be necessary to offset that
obligation to such third party plus the reasonable cost of administering said
use or sublicense.

         5.       CONFIDENTIALITY

                  5.1      Each party hereto agrees (i) to use all reasonable
precautions to maintain confidential Information (as hereinafter defined) it has
received from the other party and to limit disclosure of Information to those of
its employees or agents as is reasonably required to carry out the purposes of
this Agreement; and (ii) not to disclose, nor permit its agents and employees to
disclose, Information to any third party, except as required to effect sales of
products or as required-by any sub-license it may enter into.

                  The term "Information" shall mean any and all information
relating to the Licensed Property, as well as the operations of the parties
hereto and of any sublicensee, but shall not include:

                  (i)      Information which, at the time of disclosure, was in
the possession of the non-disclosing party as shown by its written records;

                                       5
<PAGE>

                  (ii)     Information which, at the time of disclosure by the
disclosing party, has been previously published and is in the public domain;

                  (iii)    Information which subsequently comes into the public
domain without breach of an obligation hereunder by the non-disclosing party; or

                  (iv)     Information which comes into the non-disclosing
party's possession from a third party having no obligation to the disclosing
party to keep such information confidential.

                           Notwithstanding the exceptions enumerated in the
above subparagraphs (i)-(iv), no documents, prints, drawings, computer discs,
parts, equipment or other materials or property of a party hereto provided to
the other hereunder or generated by either party from information provided to it
hereunder shall be disclosed to third parties without the prior written
permission of the party who first provided the information.

                  5.2      Each party shall cause all Information to be
conspicuously labeled to indicate the secret and confidential nature thereof,
and to take all reasonable steps to prevent unauthorized access, reproduction or
use thereof.

         6.       OBLIGATION TO PAY

                  The obligation to pay royalties to HBT shall continue until
the expiration of the last patent included within the Licensed UOB-TM- Patents,
provided, however, that the following shall apply:

                  6.1      The royalty as described in Section 7.1 below, shall
end upon the termination of the last of the nine (9) U.S. patents (together with
the international patents associated therewith) and patents pending (or being
prepared for filing) set forth in Appendix A on the date hereof. If, following
such termination, there are any Licensed UOB-TM- Patents in force, then the
royalty shall be equitably adjusted to reflect the value of the remaining patent
rights, but in no event shall the adjusted royalty rates be in excess of the
original royalty rates.

                  6.2      If any of the Licensed UOB-TM- Patents are
invalidated or the benefits conferred by the License no longer justify the
royalties then in effect, HBT agrees that the royalties shall be equitably
adjusted downward.

                  6.3      No payment shall be effective until received by the
party to whom it is owed.

         7.       PAYMENT OF ROYALTIES

                  During the term of this License, PHS shall pay to HBT the
following royalties and other monies in U.S. Dollars:

                                       6
<PAGE>

                  7.1      Royalties equivalent to two percent (2%) of the Net
Selling Price of any U0B-TM- System sold by PGS or any other sublicensee of PHS
under this License which is covered in whole or in part by one or more claims of
valid Licensed UOB-TM- Patents where manufactured or sold by PGS or any such
sublicensee. In the event that at any time in the future PHS shall manufacture
and sell any UOB-TM- System, the foregoing sentence will also apply to the Net
Selling Price of any such UOB-TM- System sold by PHS.

                  7.2      If at any time, (a) PHS requires additional funds
(hereinafter "Additional Funds") to exploit the Licensed Property for a use for
which it has not previously been exploited (hereinafter "New Use") through a
"New Affiliate" (as that term is defined in paragraph 7.5 below), and (b)
Sofical Investment Company LLC or any affiliate thereof (referred to
collectively as "Sofinov") either declines to provide all or a portion of the
Additional Funds, or Sofinov and PHS cannot agree on terms upon which Sofinov
will provide all or a portion of the Additional Funds, and (c) an entity
unrelated to Sofinov provides all the Additional Funds (i.e., Sofinov provides
none of the Additional Funds) by acquiring an interest in a New Affiliate, then
the royalty fee payable by PHS to HBT, relating to the New Use only, shall be
increased from two percent (2%) to four and one-half (4 1/2%), provided,
however, that such increased royalty fee payable by PHS to HBT shall in no
event exceed the royalty received by PHS from the New Affiliate.

                  7.3      Notwithstanding anything herein provided to the
contrary, PHS shall not be obligated to pay any royalties to HBT under paragraph
7.1 unless and until it has received the required royalty payment from the
sublicensee in question.

                  7.4      PAYMENT FOR LICENSE

                  As part of the consideration to acquire this exclusive License
and the use of the Other Assets, PHS shall pay to HBT One Million Dollars
($1,000,000) payable as follows:

                  (1)      Two Hundred Fifty Thousand Dollars ($250,000)
concurrent with the execution of the PHS Operating Agreement by all Members;

                  (2)      Seven Hundred Fifty Thousand Dollars ($750,000) upon
the earliest to occur of:

                  a.       (i)  The aggregate sales of UOB-TM- Systems made by
                                PGS amount to Twenty Two Million Dollars
                                ($22,000,000) and

                           (ii) In any one fiscal year, PGS has net profits of
                                $3,500,000 using generally accepted accounting
                                principles; or

                  b.            At such time as a strategic third party in one
                                or a series of transactions is or becomes a
                                Member in PGS and his or its cash contributions
                                taken together with the cash contributions of
                                the existing members (other than HBT and the
                                Sofinov Affiliate)

                                       7
<PAGE>

                                amount to $2,500,000, in exchange for an
                                aggregate membership percentage interest in PGS
                                of no more than ten percent (10%).

                  7.5      As used herein, the term "New Affiliate" means and
refers to each new entity created to exploit a new use for the UOB-TM-
Technology.

         8.       STATEMENT AND PAYMENTS

                  8.1      Within thirty (30) days after the end of each
calendar quarter during the term of this License Agreement, PHS shall advise HBT
in writing (hereinafter "Royalty Statement") of the revenues upon which the
royalty is based, including the names, addresses and telephone numbers of each
such purchaser and the amount sold to each purchaser, and shall pay the royalty
due based on such revenues, less credits, returns and allowances during the
reporting period.

                  8.2      Upon reasonable, advance written request by HBT to
PHS, HBT shall be permitted to audit those books and records of PHS that are
relevant to the information provided in the Royalty Statement. Such audit shall
be conducted during normal business hours at the location PHS regularly
maintains its books and records. (HBT shall not be permitted to conduct more
than two audits during each calendar year.) If it is determined that PHS made
any mistake in its Royalty Statement, which mistake resulted in an underpayment
to HBT, then PHS shall immediately pay HBT the additional amount owed; or, if
PHS overpaid HBT, HBT shall immediately refund such overpayment. HBT shall pay
all of the costs of its audits, unless it is determined that PHS underpaid the
amount due to HBT by an amount in excess of the greater of (a) ten percent (10%)
of the amount then due or (b) Ten Thousand Dollars ($10,000), in which event PHS
shall immediately reimburse HBT for all of HBT's reasonable and necessary costs
in connection with the audit. Any Royalty Statement which is not challenged
within two (2) years after its delivery shall be conclusively deemed to be final
and binding.

                  8.3      In the event payment is not made timely, and there is
no dispute as to the amount and after a fifteen (15) days' notice to cure it is
still not paid, HBT may commence legal action to collect the same. Any payment
or judgment thereafter shall bear interest at ten percent (10%) per annum from
due date as further provided by paragraph 16.7 herein.

         9.       OBLIGATION TO OBSERVE TRADEMARK REQUIREMENTS

                  All products manufactured by PHS, PGS, or any New Affiliate
involving the UOB-TM- or in any manner under the Licensed UOB-TM- Patents must
clearly bear the trademark UOB-TM- and any copyright notice or interim mark of
HBT.

         10.      RETENTION OF RECORDS

                  PHS agrees that at all times during the term of this
Agreement, it shall keep accurate books of account and other records that shall
contain all details relating to the

                                       8

<PAGE>

manufacture and sale of products made using the Licensed UOB-TM- Patents, and
including all the information required for the Royalty Statement to accompany
such royalty payment as described in Article 8 above. PHS shall keep these
books of account and other records carefully preserved available for
inspection by HBT for a period of at least four (4) years.

         11.      WITHHOLDING OF ROYALTIES

                  PHS may withhold from the royalty payments required to be
remitted to HBT the proper amount of income tax applicable thereto as
required by any Government to be withheld at the time of payment of the
royalty, and other monies actually owed by HBT to PHS. Upon payment of such
tax, PHS shall provide HBT with a tax receipt which documents the payment
thereof.

         12.      PATENT WARRANTY; INFRINGEMENTS

                  12.1     HBT represents and warrants that it has no
knowledge, and has no reason to believe, as of the date of execution of this
License Agreement (a) that there exist any patent rights held by others that
would be infringed by the making, using and selling of U0B-TM- Systems or use
of the Licensed U0B-TM- Patents or the U0B-TM- Technology, (b) that there
exists any prior art that is more pertinent to the patentability for the
UOB-TM- Technology than the references cited by the U.S. Patent and Trademark
Office in connection with prosecution and/or issue of the patents listed in
Appendix A, and (c) that there are no third party claims against HBT, its
affiliates or other licensees, for infringement or misappropriation of any of
the know-how, inventions, improvements, patent rights or other intellectual
property or trade secrets which constitutes or is part of the Licensed
UOB-TM- Patents or the UOB-TM-Technology.

                  12.2     If a claim is made or proceedings are commenced
against PHS or any of its sublicensees, or any customer or user of PHS or any
sublicensee, for the alleged infringement of patent rights allegedly owned by
others by reason of any products which are based upon the Licensed UOB-TM-
Patents or the UOB-TM- Technology, PHS shall advise HBT promptly, and having
been so advised, or HBT becoming otherwise aware of such claim or proceeding,
HBT shall defend, indemnify and hold PHS and its sublicensees harmless
therefrom. In such event, HBT shall pay for and provide a defense against any
such claims by utilizing counsel which is acceptable to PHS and who is
experienced in such matters. If PHS fails to promptly notify HBT of the
existence of a claim as to which HBT is obligated to indemnify, defend and
hold harmless, such lack of prompt notification shall not invalidate HBT's
obligations hereunder, other than to the extent HBT has been damaged by such
failure.

                  12.3     HBT and PHS shall be obligated to notify each
other promptly of any infringements of the Licensed U0B-TM- Patents or other
rights in the UOB-TM- Technology. In the event that any such infringement
occurs at a commercial level and affects, or is likely to affect, the
profitability of PHS or any sublicensee, HBT agrees that it will vigorously
pursue any and all available steps to end the infringement, including the
institution of legal proceedings, if appropriate, at its sole expense.
However, PHS and any affected sublicensee shall assist to the extent of their
ability to provide witnesses and documents and any other information without
cost to HBT.

                                       9
<PAGE>

                  12.4     In the event that (a) HBT lacks the necessary
funds to meet any of its obligations set forth in paragraphs 12.2 and 12.3
and (b) PHS has such funds available, PHS will advance such reasonable amount
of money (the "Advanced Funds") to HBT as will cause HBT to have the
necessary funds to meet such obligation(s). PHS shall then have the right to
repay to itself the Advanced Funds out of royalties due and payable by it to
HBT, as well as out of net profits which would otherwise have been
distributed to HBT as a member of PHS, until it shall have been fully repaid.
If HBT nonetheless fails to carry out any of its obligations set forth in
paragraphs 12.2 and 12.3, PHS may suspend royalty payments to HBT under this
License Agreement while the infringement continues, and PHS shall have the
right, but not the obligation to take steps, including legal action in HBT's
name, to end the infringement.

         13.      BREACH, ARBITRATION, INJUNCTIVE RELIEF

                  13.1     CURE PERIOD. If either party (hereinafter
"Claiming Party") believes that the other party (hereinafter "Breaching
Party") has breached all or any of its obligations under the License
Agreement, then, subject to paragraph 13.3 below, before the Claiming Party
may take any action (including the institution of arbitration proceedings) in
connection with the alleged breach, the parties agree that:

                           (a)      The Claiming Party must advise the
Breaching Party, in writing, of the precise nature of the alleged breach, the
provision(s) of the License Agreement which the Claiming Party alleges have
been breached and the period (hereinafter "Cure Period") of time that the
Breaching Party has in which to cure the alleged breach, which period of time
may not be less than thirty (30) days;

                           (b)      During the Cure Period, the Breaching
Party may attempt to cure the alleged breach. The Cure Period will be
automatically extended for up to an additional ninety (90) days if (1) the
Breaching Party begins to cure the alleged breach during the Cure Period, (2)
the Breaching Party acts diligently to complete the cure and (3) the alleged
breach is of a type that cannot reasonably be cured within the term of the
initial Cure Period;

                           (c)      If, following the expiration of the Cure
Period (extended, if applicable) the Claiming Party still believes the
Breaching Party is in breach of any of its obligations under the License
Agreement, then the parties shall, during the next succeeding thirty (30) day
period (hereinafter "Negotiation Period") attempt to negotiate a resolution
of their differences;

                           (d)      If the parties are unable to resolve
their differences during the Negotiation Period, then the parties shall
invoke the arbitration provisions set forth hereinbelow.

                  13.2     ARBITRATION. Any controversy or claim, whether
based on contract, tort, statute, indemnity, or other legal theory, arising
out of or related to this License Agreement, or any subsequent agreement
between the parties or any breach thereof shall be settled by arbitration
before a retired Judge or Justice chosen by the parties through the Judicial

                                       10
<PAGE>

Arbitration and Mediation Service ("JAMS") of Los Angeles County. The parties
agree that JAMS will provide a list of five available Judges or Justices from
which the parties will choose a single Judge or Justice to arbitrate the
dispute. If the parties cannot agree on a single Judge or Justice, each party
will have the right to reject or strike two (2) Judges or Justices from the
list of five. The arbitrator will then be chosen from the remaining Judge(s)
or Justice(s) by blind draw supervised by JAMS. In rendering his or her award
the retired Judge or Justice ("Arbitrator") shall have no authority or
jurisdiction to modify or change any provision of this License Agreement or
to award punitive damages. The Arbitrator shall have the authority to
determine the arbitrability of any dispute between the parties and shall also
have the authority to establish procedural rules to govern the arbitration of
any dispute between the parties. Any judgment upon the award rendered by the
Arbitrator shall be final and binding and may be entered in any court having
jurisdiction thereof.

                  It is agreed that prompt handling and disposition of any
dispute is important to the parties and the Arbitrator is hereby instructed
to assume adequate managerial initiative and control over discovery and other
aspects of the arbitration proceeding, to schedule prompt and expedited
discovery to be taken by either party, to manage and control discovery and
provide for substantially continuous work, whereby expediting the proceeding
as much as he or she deems reasonable, but in all events to try to effect a
final award within 180 days of filing, and within 20 days of the close of
evidence.

                  13.3     INJUNCTIVE RELIEF.   Notwithstanding paragraphs
13.1 and 13.2 above, a Claiming Party may at any time seek appropriate
injunctive relief (including for, but not limited to, the purpose of seeking
or obtaining interim injunctive relief in order to preserve the status quo
pending conclusion of an arbitration proceeding pursuant to paragraph 13.2)
without following the procedures in paragraphs 13.1 and 13.2 above if (1) it
reasonably believes that there is insufficient time to follow these
procedures and (2) its interests will be substantially at risk if it is
unable to obtain immediate injunctive relief, provided, however, that the
Claiming Party shall not seek to stop the day-to-day operations of the
Breaching Party which are carried out in the ordinary course of business. If
appropriate, the Claiming Party will promptly proceed to commence an
arbitration proceeding in accordance with paragraph 13.2.

         14.      TRADENAME AND TRADEMARK

                  14.1     HBT hereby grants to PHS the right and license to
use the Tradename and Trademark " UOB-TM- in connection with the use and
exploitation of the licensed UOB-TM- Patents and the UOBT-TM- Technology and
on and in connection with the manufacture, advertising, distribution and sale
of UOB-TM- Systems. The Trademark shall at all times be used in the same form
as registered in the US Patent and Trademark Office. Advertising using the
Tradename or Trademark shall be in good taste and similar in quality to the
advertising activities in which PHS uses its own tradename and trademarks.

                  14.2     Use of the Tradename and Trademark by PHS and its
sublicensees is limited to the Licensed UOB-TM- Patents, the UOB-TM-
Technology and UOB-TM- Systems, unless otherwise approved in writing by HBT.

                                       11
<PAGE>

                  14.3     PHS agrees that all goodwill generated by use of a
Trademark or Tradename hereunder shall inure to the benefit of HBT.

         15.      TERMINATION OF AGREEMENT

                  The parties acknowledge that the License granted hereunder
is irrevocable. However, in the event it is determined that all or a portion
of the License is, nonetheless, revocable under certain circumstances, then
in no event shall the License granted hereunder be terminated, nor shall any
party attempt or purport to terminate it before there is a final and binding
adjudication by a court of competent jurisdiction or the Arbitrator pursuant
to paragraph 13.1 (if applicable) and 13.2 that the License granted hereunder
is terminated.

         16.      MISCELLANEOUS

                  16.1     INTEGRATION. This Agreement constitutes the entire
agreement and understanding of the parties with respect to the transaction
contemplated hereby. This Agreement supersedes all prior agreements,
arrangements and understandings related to the subject matter hereof. No
representation, promise, inducement or statement of intention has been made
by any of the parties hereto not embodied in this Agreement or in the
documents referred to herein, and no party shall be bound by, or liable for,
any alleged representation, promise, inducement or statements of intention
not set forth or referred to herein.

                  16.2     GOVERNING LAW JURISDICTION AND VENUE. This
Agreement shall be governed by, and construed and enforced in accordance
with, the laws of the State of California.

                  16.3     BINDING EFFECT. All of the terms, covenants,
representations, warranties and conditions herein shall be binding upon, and
inure to the benefit of, and be enforceable by, the parties hereto, and their
respective successors, assignees and delegates, including, but not limited
to, successor corporations.

                  16.4     WAIVER. This Agreement may not be amended,
modified, superseded or cancelled, nor may any of the terms, covenants,
representations, warranties or conditions hereof be waived, except by a
written instrument executed by the party against whom such amendment,
modification, supersedure, cancellation or waiver is charged. The failure of
any party at any time or times to require performance of any provision hereof
shall in no manner affect the right at a later time to enforce the same. No
waiver by any party of any condition, or of any breach of any term, covenant,
representation, or warranty contained herein, in any one or more instances,
shall be deemed to be or construed as a further or continuing waiver of any
such condition or breach or waiver of any other condition or of any breach of
any other term, covenant, representation or warranty.

                  16.5     CONSTRUCTION. The captions and headings contained
herein are for convenient reference only, and shall not in any way affect the
meaning or interpretation of this Agreement. All references in this Agreement
to a "person" mean and refer to natural persons, partnerships, corporations,
trusts, associations, governmental agencies and any other

                                      12
<PAGE>

entity of any kind whatsoever. Notwithstanding any rule or maxim of
construction to the contrary, any ambiguity or uncertainty in this Agreement
shall not be construed against either party based upon authorship of any of
the provisions hereof.

                  16.6     COUNTERPARTS AND FACSIMILE SIGNATURES. This
Agreement may be executed by facsimile signature and executed in two or more
counterparts, each of which shall be deemed an original, and all of which
together shall constitute one and the same instrument.

                  16.7     ATTORNEYS' FEES. In the event that any party shall
bring an action in connection with the performance, breach or interpretation
of this Agreement, or in any action related to the transaction contemplated
hereby, the prevailing party in any such action, as may be determined by the
court or other tribunal (such as the Arbitrator) having jurisdiction, shall
be entitled to recover from the losing party in such action, also as
determined by the court or other tribunal having jurisdiction, all actual
costs and expenses of such litigation, including attorneys' fees, court
costs, costs of investigation, accounting, and other costs reasonably related
to such litigation, in such amount as may be determined in the discretion of
the court or other tribunal having jurisdiction of such action.

                  16.8     SEVERABILITY. In the event that any provision
hereof is determined to be illegal or unenforceable, such determination shall
not affect the validity or enforceability of the remaining provisions hereof,
all of which shall remain in full force and effect.

                  16.9     FURTHER DOCUMENTS. The parties each hereby
covenant and agree that, from time to time, after the date hereof, at the
reasonable request of any party, and without further consideration, they will
execute and deliver such other documents and take such other action as may be
reasonably required to carry out in all respects the transactions
contemplated and intended by this Agreement.

                  16.10    NOTICES. All notices, requests, demands and other
communications required or permitted to be given under this Agreement shall
be in writing and shall be conclusively deemed to have been duly given (1)
when hand delivered to the other party; or (2) when received when sent by
facsimile at the address and number set forth below (provided, however, that
notices given by facsimile shall not be effective unless either (a) a
duplicate copy of such facsimile notice is promptly given by depositing same
in a post office with first-class postage prepaid and addressed to the
parties as set forth below, or (b) the receiving party delivers a written
confirmation of receipt for such notice either by facsimile or any other
method permitted under this paragraph 16.10; additionally, any notice given
by facsimile shall be deemed received on the next business day if such notice
is received after 5:00 p.m. (recipient's time) or on a nonbusiness day; or
(3) five (5) business days after the same have been deposited in a post
office with first-class or certified mail, return receipt requested, postage
prepaid and addressed to the parties as set forth below; or (4) the next
business day after the same have been deposited with a national overnight or
next business day delivery service reasonably approved by the parties
(Federal Express, DHL WorldWide Express and US Express Mail being deemed
approved by the parties), postage prepaid,

                                       13

<PAGE>

addressed to the parties as set forth below, provided that the sending party
receives a confirmation of delivery from the delivery service provider.

     PHS:                  Phoenix Hydrogen Systems, LLC
                           3925 East Vernon Street
                           Long Beach, California 90815
                           Attention: CEO
                           Telephone: (310) 597-2442
                           Fax: (310) 597-8780

     With a copy to:       Sofinov Societe Financiere d'Innovation Inc.
                           1981, avenue McGill College
                           Montreal (Quebec)
                           H3A 3C7
                           Attention: President
                           Telephone: (514) 847-2613
                           Fax: (514) 847-2628

     HBT:                  Hydrogen Burner Technology, Inc.
                           3925 East Vernon Street,
                           Long Beach, California 90815
                           Attention: President
                           Telephone: (310) 597-2442
                           Fax: (310) 597-8780

                  16.11    GENDER AND TENSE. As used in this Agreement, the
masculine, feminine and neuter gender, and the singular or plural number,
shall each be deemed to include the other or others whenever the context so
indicates.

                  16.12    TIME. Time is of the essence in this Agreement.

                  16.13    EXHIBITS. Any exhibit or appendix referred to in
this Agreement shall be attached to this Agreement and be incorporated into
this Agreement by the reference to same.

                  16.14    PARTIES IN INTEREST. Nothing in this Agreement,
whether express or implied, is intended to confer any rights or remedies
under or by reason of this Agreement on any persons other than the parties to
it and their respective successors and assigns, nor is anything in this
Agreement intended to relieve or discharge the obligation or liability of any
third persons to any party to this Agreement, nor shall any provision give
any third persons a right of subrogation or action over or against any party
to this Agreement.

                  16.15    DATE AND DELIVERY OF AGREEMENT. Notwithstanding
anything to the contrary contained in this Agreement, the parties intend that
this Agreement shall be deemed effective, executed and delivered for all
purposes under this Agreement, and for the

                                       14
<PAGE>

calculation of any statutory time periods based on the date an agreement
between parties is effective, executed, and/or delivered, as of the date set
forth on the first page of this Agreement.

                  16.16    ASSIGNMENT. HBT shall not, voluntarily or by
operation of law, assign, hypothecate, give, transfer, mortgage, sublet,
license or otherwise transfer or encumber all or any part of its rights,
duties or other interest in this Agreement other than its royalties or the
proceeds thereof (collectively "Transfer"), without the prior written consent
of PHS. Any attempt to make a Transfer in violation of this provision shall
be a material default under this Agreement, and any Transfer in violation of
this provision shall be null and void.

                  16.17    COUNTING OF DAYS. If a party is required to
complete the performance of an obligation under this Agreement by a date
certain and such date is a Saturday, Sunday, religious holiday or Federal
holiday (collectively, a "Nonbusiness Day"), then the date for the completion
of such performance will be the next succeeding day that is not a Nonbusiness
Day.

                  16.18    CUMULATIVE OF REMEDIES. No remedy or election
hereunder shall be deemed exclusive but shall, wherever possible, be
cumulative with all other remedies at law or in equity, subject to the
provisions of paragraphs 13.2 and 13.3.

                  16.19    EXECUTION OF AGREEMENT. Each party has been
represented by counsel in the negotiation and execution of this Agreement.
This Agreement was executed voluntarily without any duress or undue influence
on the part of, or on behalf of, the parties hereto. The parties acknowledge
that they have read and understood this Agreement and its legal effect. Each
party acknowledges that it has had a reasonable opportunity to obtain
independent legal counsel for advice and representation in connection with
this Agreement. Each party further acknowledges that it is not relying on,
and it is not for the purposes of, the negotiation, execution, and delivery
of this Agreement, a client of the legal counsel employed by the other party
to this Agreement.

                                       15
<PAGE>

         IN WITNESS HEREOF, this Agreement is executed in duplicate by the
respective, duly authorized officers of the parties as of the day and year
first above written.

                                 HYDROGEN BURNER TECHNOLOGY, INC.
                                 "HBT"

Attest:                          By:
                                    --------------------------------------------
                                        Name (Printed):
                                                       -------------------------
                                        Title:
                                              ----------------------------------

                                 PHOENIX HYDROGEN SYSTEMS, LLC
                                 "PHS"

Attest:                          By:
                                    --------------------------------------------
                                        Name (Printed):
                                                       -------------------------
                                        Title:
                                              ----------------------------------

                                       16
<PAGE>

                                    APPENDIX A

         U.S. Patent No. 5,207,185 - dated May 4, 1993
         U.S. Patent No. 5,299,536 - dated April 5, 1994
         U.S. Patent No. 5,441,546 - dated August 15, 1995
         U.S. Patent No. 5,437,123 - dated August 1, 1995
         U.S. Patent No. 5,529,484 - dated June 25, 1996
         U.S. Patent No. 5,546,701 - dated August 20, 1996

                  A patent application was filed June 6, 1996 and is presently
         pending.

                  Two additional patents are in the process of preparation for
         filing and should be filed before the end of 1996.

<PAGE>

                                                                       EXHIBIT B

                             SUB-LICENSE AGREEMENT

                  This Sub-license Agreement is entered into between Phoenix
Hydrogen Systems LLC (hereinafter "PHS" and Phoenix Gas Systems, LLC
hereinafter "PGS") this 7th day of August, 1996.

                  Hydrogen Burner Technology, Inc. (hereinafter "HBT") and
PGS entered into a license agreement on March 28, 1996 (the "Original PGS
License"), pursuant to which HBT granted to PGS a world-wide exclusive
license to make, use and sell the UOB-TM- Technology with respect to a
specific field of use described therein and herein.

                  HBT entered into a license agreement with PHS as of the
date hereof (the "PHS License") pursuant to which HBT has granted to PHS, in
perpetuity (but in the event this is not permitted then for the longest
period permitted by law) an exclusive irrevocable worldwide license to make,
use, offer for sale, sell, sub-license and otherwise exploit the Licensed
UOB-TM- Patents, the UOB-TM- Technology, the Trade Names and Trademarks (all
as defined herein and in the PHS License) for all uses.

                  HBT has assigned the Original PGS License to PHS. The
parties hereto desire to restate and amend the terms and conditions of the
original PGS License in this Sub-license Agreement.

                  NOW THEREFORE in consideration of the above recitals and
each and all of the terms and provisions hereinafter contained it is agreed
as follows:

         1.       DEFINITIONS

                  The following words and phrases will have the meanings set
forth below, unless the context requires a different meaning:

                  1.1      "UOB-TM- Technology" shall mean all inventions,
technology and information presently known or hereafter developed or acquired
by or licensed to HBT relating to the UOB-TM-, including, but not limited to,
the UOB-TM- Reactor, Water Vaporization System, Water and/or Gas Shift
Reactor, Air and Fuel Injectors, Control System Software, all technology
where hydrogen is used as a fuel for fuel cell systems and combustion
systems, or where hydrogen is used as a feed stock, and any other fields of
use (whether known or unknown) for the UOB-TM- Technology, and all know-how,
trade secrets, computer programs, designs, drawings, plans, specifications,
goodwill, and marketing, sales, and other information of HBT relating to the
UOB-TM-, limited only by the terms and provisions of the license heretofore
granted to PGS, as such license is amended as of the date hereof and
converted into a sublicense between PHS and PGS as to a limited field of use.

<PAGE>

                  1.2      "Licensed UOB-TM- Patents" shall mean all patents
relating to the UOB-TM- Technology and including all U.S. patents issued and
issuing from any pending application or from a continuation, continuation in
part, or divisional application which is based, in whole or in part on an
application for one or more of such U.S. patents; all reissues of the foregoing
patents, all foreign counterpart patents which are based, in whole or in part,
on, any of the foregoing applications for U.S. patent; and any other future
patent rights that may be included herein under the provisions of this License
Agreement.

                  1.3      "UOB-TM- System" shall mean the UOB-TM- together with
all ancillary components, or devices, which are especially made or especially
adapted for the construction of systems and which are used along with or are
attached to the UOB-TM- and covered by the License to PHS. The cost of each such
ancillary component or device shall be added to the price of the UOB-TM- to form
the price of a "UOB-TM- System" which will bear the trademark UOB-TM- , which
trademark shall be placed on all equipment components and devices sold by PHS
and/or by any sub-licensee. All patented devices and such ancillary components
and/or devices bearing the trademark UOB-TM- will result in a UOB-TM- System
which will be the basis upon which the total royalty owed to HBT will be
computed.

                  1.4      "Net Selling Price" shall mean invoiced selling
price, f.o.b. PHS' or its sublicensee's facility, after deduction of all regular
and customary trade and quantity discounts, freight allowances, and cash
discounts, but before deduction of agent's commissions.

                  1.5      "Tradenames" and "Trademarks" shall mean the name and
mark UOB-TM-, and any other names or marks now or later adopted, used or
acquired by HBT that refer or relate to the UOB-TM- Technology.

         2.       EXCLUSIVE SUB-LICENSE

                  2.1      PHS HEREBY GRANTS TO PGS (sometimes hereafter
referred as "Sublicensee") a world-wide exclusive sub-license to make, use,
market and sell and otherwise exploit, in perpetuity (but in the event such term
is not permitted, then for the longest period permitted by law), the UOB-TM-
Technology, and the Tradenames and Trademarks (collectively the "Licensed
Property"), provided, however, that this Sub-License is limited to the "Field of
Use" defined in paragraphs 3 and 4 hereof.

                  2.2      PHS' OBLIGATION TO ASSIST SUB-LICENSEE

                  PHS agrees, during the 24 months from the date of this
Agreement upon reasonable request by Sub-licensee, that it will request HBT to
cooperate fully to assist Sublicensee, free of charge, in the testing,
engineering and manufacturing of UOB-TM- Systems and to consult with and
provide technical assistance and problem solving for UOB-TM- Systems to enable
Sub-licensee to make, have made, use or sell UOB-TM- Systems in the Field of Use
described in paragraph 3 below, and to exercise its rights under the Sub-License
granted hereunder. To accomplish such assistance, after the first 24 months, PHS
shall request HBT

                                       2
<PAGE>

to provide free of charge fifty (50) man/days per calendar year, not including
travel time. In each instance, after said first 24 months, (a) Sub-licensee
shall reimburse HBT directly for the reasonable travel and living expenses
incurred by HBT's personnel in providing such assistance away from HBT's
principal office/plant, and (b) PHS shall request HBT, upon request of
Sub-licensee to provide assistance in excess of fifty (50) man-days, in which
event Sub-licensee shall pay HBT directly in accordance with paragraph 2.3.

                  2.3      Sub-licensee shall reimburse HBT directly for
training and assistance in excess of the man-days specified in Section 2.2
above at HBT's standard rate at the time of the request. All such reimbursements
shall be made in U.S. Dollars within thirty (30) days of receipt by Sub-licensee
of HBT's invoice. A man-day shall be an eight hour day. The rate for overtime
and work over weekends and holidays shall be negotiated as it is required.

                  2.4      RELATIONSHIP OF THE PARTIES

                  The relationship of the parties shall be that of independent
contractors, and nothing contained herein shall be deemed to create any
relationship of agency, joint venture, partnership or employment. Neither party
hereto shall have any power to commit, contract for or otherwise obligate the
other to any third person.

                  2.5      SUB-LICENSEE'S RIGHT TO SUB-LICENSE

                  PGS shall have the right to grant sublicenses only after
having obtained the prior written approval of PHS in relation to the identity of
the proposed sub-licensee and the terms and conditions of the proposed
sub-license.

         3.       FIELD OF USE

                           The Sub-License granted pursuant to this Agreement
shall be limited and confined to a "Field of Use" identified as all conventional
hydrogen markets, including but not limited to chemical, refinery, metals, food,
hydrogen peroxide, glass, electronics, and all other uses where Hydrogen is not
used as a fuel but instead as a feed stock to industrial products and processes.

         4.       LIMITATION OF LICENSE

                           The Sub-license granted pursuant to this Agreement
does not include uses in other fields of use which directly use Hydrogen as a
fuel, including fuel cells and internal combustion engines (both transportation
and stationary), turbines, boilers, burners, process heaters and other uses not
within Sub-licensee's "Field of Use". If future technology provides an overlap
in the Field of Use, PHS will include the same in the sub-license.

                                       3
<PAGE>

         5.       FURTHER CONCEPTIONS, INVENTION, IMPROVEMENTS

                  5.1      In the event PGS or any of its employees or
sublicensees should conceive of any inventions or improvements to the
UOB-TM-, whether or not PGS or any of its employees, licensees or sublicensees
shall apply for a patent thereon and whether or not said inventions or
improvements shall have been reduced to practice, PHS and PGS agree that any
rights therein or patents resulting therefrom shall belong to HBT and any
patents resulting therefrom shall be assigned to HBT and, insofar as such
rights and/or patents are used or applied in connection with the UOB-TM-
Technology within the Field of Use, shall be a part of the Sub-License to PGS
without additional cost to PGS.

                  5.2      PGS shall promptly advise PHS and HBT in writing of
any such improvements or inventions referred to Section 5.1 and disclose to PHS
and HBT all information needed by PHS and HBT to utilize such improvements or
inventions and shall assist in any way possible to allow PHS and HBT to use such
improvements or inventions to the fullest extent possible.

                  5.3      In the event PHS shall receive from HBT a sub-license
of a license or right received by HBT from any third party to make, use or sell
any invention, know-how or trade secret which is usable with the UOB-TM-
Technology or by PGS to improve its performance or to broaden its usefulness
within the Field of Use, PHS shall disclose the same to PGS unless prohibited by
said third party. In the event PHS is obligated to pay any royalty for the use
or sub-license of any such sub-license or right, PGS shall pay to PHS that
amount plus 15% of that amount for administrative costs in order to use the
same. No payments are due by PGS, however, in the event that such use or
sub-license of such third party license permits PGS to increase the selling
price of its product in such amount that the increase in the royalty to PHS
under this Sub-License is sufficient to satisfy the obligation of PHS to HBT
plus 15% of said obligation, then no further royalty shall be due by PGS to PHS.
In the event the increase is not sufficient for that purpose, then PGS shall pay
to PHS such further sum as shall be necessary to offset that obligation to HBT
plus 15% of such obligation.

         6.       CONFIDENTIALITY

                  6.1      Each party hereto agrees (i) to use all reasonable
precautions to maintain confidential, Information (as hereinafter defined) it
has received from the other party and to limit disclosure of Information to
those of its employees or agents as is reasonably required to carry out the
purposes of this Agreement; and (ii) not to disclose, nor permit its agents and
employees to disclose, Information to any third party, except as required to
effect sales of products.

                           The term "Information" shall mean any and all
information relating to the Licensed Property , as well as the operations of the
parties hereto and of any sublicensee, but shall not include:

                                       4
<PAGE>

                           (i)      Information which, at the time of
disclosure, by the disclosing party has been previously published and is in the
public domain;

                           (ii)     Information which, at the time of disclosure
by the disclosing party, has been previously published and is in the public
domain;

                           (iii)    Information which subsequently comes into
the public domain without breach of an obligation hereunder by the
non-disclosing party; or

                           (iv)     Information which comes into the
non-disclosing party's possession from a third party having no obligation to the
disclosing party to keep such information confidential.

                           Notwithstanding the exceptions enumerated in the
above subparagraphs (i)-(iv), no documents, prints, drawings, computer discs,
parts, equipment or other materials or property of a party hereto provided to
the other hereunder or generated by either party from information provided to it
hereunder shall be disclosed to third parties without the prior written
permission of the disclosing party.

                  6.2      Each party shall cause all Information to be
conspicuously labeled to indicate the secret and confidential nature thereof,
and to take all reasonable steps to prevent unauthorized access, reproduction or
use thereof.

         7.       OBLIGATION TO PAY

                  7.1      The obligation to pay royalties to PHS shall continue
until the expiration of the last patent included within the Licensed UOB-TM-
Patents, provided, however, that the following shall apply:

                  7.2      The royalty as described in section 8.1 below, shall
end upon termination of the last of the nine (9) U.S. patents (together with the
international patents associated therewith) and patents pending (or being
prepared for filing) set forth in Appendix A on the date hereof. If, following
such termination, there are any Licensed UOB-TM- Patents in force, then the
royalty shall be equitably adjusted to reflect the value of the remaining patent
rights, but in no event shall the adjusted royalty rates be in excess of the
original royalty rates.

                  7.3      If any of the Licensed UOB-TM- Patents are
invalidated or the benefits conferred by the License no longer justify the
royalties then in effect, PHS agrees that the royalties shall be equitably
adjusted downward.

                  7.4      No payment shall be effective until received by the
party to whom it is owed.

                                       5
<PAGE>

         8.       PAYMENT OF ROYALTIES

                  8.1      During the term of this Sub-License, PGS shall pay to
PHS in U.S. Dollars royalties equivalent to five percent (5%) of the Net Selling
Price of any UOB-TM- System sold by PGS which is covered in whole or in part by
one or more claims of valid Licensed UOB-TM- Patents where manufactured or sold
by PGS.

                  8.2      As part of the consideration to acquire this
exclusive Sub-License, PGS shall pay to PHS One Million Dollars ($1,000,000.00),
provided, however, that this amount shall be payable only out of 25% of PGS'
annual net profits commencing December 31, 1996 until the amount shall have been
paid in full. Said amounts shall be paid within thirty (30) days after receipt
of financial statements.

         9.       REPORT AND PAYMENT OF STATEMENTS

                  9.1      Within fifteen (15) days after the end of each
calendar quarter during the term of this Sub-License, PGS shall advise PHS in
writing (hereinafter "Royalty Statement") of the revenues upon which the royalty
is based, including the names, addresses and telephone numbers of each such
purchaser and the amount sold to each purchaser, and shall pay the royalty due
based on such revenues, less credits, returns and allowances during such
reporting period. If not paid timely, the amount due shall bear interest at ten
percent (10%) per annum from date due until paid.

                  9.2      Upon reasonable, advance written request by PHS to
PGS, PHS shall be permitted to audit those books and records of PGS that are
relevant to the information provided in the Royalty Statement. Such inspection
shall be conducted during normal business hours at the location PGS regularly
maintains its books and records. (PHS shall not be permitted to conduct more
than two audits during each calendar year.) It is determined that PGS made any
mistake in its Royalty Statement, which mistake resulted in an underpayment to
PHS, then PGS shall immediately pay PHS the additional amount owed; or, if PGS
overpaid PHS, PHS shall immediately refund such overpayment. PHS shall pay all
of the costs of its audits, unless it is determined that PGS underpaid the
amount due to PHS by an amount in excess of the greater of (a) ten percent (10%)
of the amount then due or (b) Ten Thousand Dollars ($10,000), in which event PGS
shall immediately reimburse PHS for all of PHS' reasonable and necessary costs
in connection with the inspection. Any Royalty Statement which is not challenged
within two (2) years after its delivery shall be conclusively deemed to be final
and binding.

                  9.3      In the event payment is not made timely, and there is
no dispute as to the amount and after a fifteen (15) days' notice to cure it is
still not paid, PHS may commence legal action to collect the same. Any payment
or judgment thereafter shall bear interest at ten percent (10%) per annum from
due date as further provided by paragraph 17.7 herein.

                                       6
<PAGE>

         10.      OBLIGATION TO MARKET AND SELL

                  PGS will use all due diligence to aggressively market and sell
the UOB-TM- throughout the world.

         11.      OBLIGATION TO OBSERVE TRADEMARK REQUIREMENTS

                           All products manufactured by PGS involving the
UOB-TM- or in any manner under the Licensed UOB-TM- Patents must clearly bear
the trademark UOB-TM- and any copyright or interim mark of HBT.

         12.      RETENTION OF RECORDS

                           PGS agrees that at all times during the term of this
Agreement, it shall keep accurate books of account and other records that shall
contain all details relating to the manufacture and sale of products made using
Licensed UOB-TM- Patents and including all the information required for the
Royalty Statement to accompany such royalty payment as described in Section 9
above. PGS shall keep these books of account and other records carefully
preserved available for inspection by the PHS for a period of at least four (4)
years.

         13.      WITHHOLDING OF ROYALTIES WHERE REQUIRED

                           PGS may withhold from the royalty payments required
to be remitted to PHS the proper amount of income tax applicable thereto as
required by any Government to be withheld at the time of payment of the royalty,
and other monies actually owed by PHS to PGS. Upon payment of such tax, PGS
shall provide PHS with a tax receipt which documents the payment thereof.

         14.      PATENT WARRANTY

                  14.1     PHS represents and warrants that it has no knowledge,
and has no reason to believe, as of the date of execution of this Sub-License
Agreement (a) of the existence of any patent rights held by others that would be
infringed by the making, using and selling of UOB-TM- Systems or use of the
Licensed UOB-TM- Patents or the UOB-TM- Technology and (b) that there are no
third party claims against HBT or PHS, HBT's affiliates or other licensees, for
infringement or misappropriation of any of the know-how, inventions,
improvements, patent rights or other intellectual property or trade secrets
which constitutes or is part of the Licensed UOB-TM- Patents or the UOB-TM-
Technology.

                  14.2     If a claim is made or proceedings are commenced
against PGS, or any customer or user of PGS, for the alleged infringement of
patent rights allegedly owned by others by reason of any products which are
based upon the Licensed UOB-TM- Patents or the UOB-TM- Technology, PGS shall
advise PHS and HBT promptly, and having been so advised, or PHS or HBT becoming
otherwise aware of such claim or proceeding, PHS shall cause HBT to defend,
indemnify and hold PGS harmless therefrom. In such event, PHS will cause HBT to

                                       7
<PAGE>

pay for and provide a defense against any such claims. If PGS fails to promptly
notify PHS of the existence of a claim as to which PHS is obligated to cause
HBT to indemnify, defend and hold harmless, such lack of proper notification
shall not invalidate PHS' obligations hereunder, other than to the extent PHS
and/or HBT have been damaged by such failure.

                  14.3     PGS and PHS shall be obligated to notify each other
promptly of any infringements of the Licensed UOB-TM- Patents or other rights
in the UOB-TM- Technology. In the event that any such infringement occurs at a
commercial level and affects, or is likely to affect, the profitability of PGS,
PHS undertakes that it will cause HBT to vigorously pursue any and all available
steps to end the infringement, including, if appropriate, the institution of
legal proceedings at its sole expense. However, PGS shall assist to the extent
of its ability to provide witnesses and documents and any other information
without cost to PHS and HBT.

                  14.4     If for any reason HBT fails to indemnify, defend and
hold harmless as referred to in paragraph 14.2 hereof, or to pursue steps to end
an infringement as referred to in paragraph 14.3 hereof, PGS shall notify PHS of
its dissatisfaction, upon which if PHS agrees, PHS may take the appropriate
steps, including legal action in HBT's name, to end the infringement. In the
event that PHS fails to take such steps within ninety (90) days from the date of
PGS' notice, PGS may suspend royalty payments to PHS until such time as PHS
takes such steps.

         15.      TRADENAME AND TRADEMARK

                  15.1     PHS hereby grants to PGS by sub-license the right to
use the Tradename and Trademark UOB-TM- on and in connection with the
manufacture, advertising, distribution and sale of UOB-TM- Systems. The
Trademark shall at all times be used in the same form as registered in the U.S.
Patent and Trademark Office. Advertising using the Tradename or Trademark shall
be in good taste and similar in quality to the advertising activities in which
PGS uses its own tradename and trademarks.

                  15.2     Use of the Tradename and Trademark by Sub-licensee is
limited to the Licensed UOB-TM- Patents, the UOB-TM- Technology and UOB-TM-
Systems within the Field of Use, unless otherwise approved in writing by PHS.

                  15.3     PGS and PHS agree that all goodwill generated by use
of a Trademark or Tradename hereunder shall inure to the benefit of HBT as the
owner thereof.

         16.      BREACH, ARBITRATION, INJUNCTIVE RELIEF

                  16.1     CURE, PERIOD. If either party (hereinafter "Claiming
Party") believes that the other party (hereinafter "Breaching Party") has
breached all or any of its obligations under the License Agreement, then,
subject to paragraph 13.3 below, before the Claiming Party may take any action
(including the institution of arbitration proceedings) in connection with the
alleged breach, the parties agree that:

                                       8
<PAGE>

                           (a)      The Claiming Party must advise the Breaching
Party, in writing, of the precise nature of the alleged breach, the provision(s)
of the Sub-License Agreement which the Claiming Party alleges have been breached
and the period (hereinafter "Cure Period") of time that the Breaching Party has
in which to cure the alleged breach, which period of time may not be less than
thirty (30) days;

                           (b)      During the Cure Period, the Breaching Party
may attempt to cure the alleged breach. The Cure Period will be automatically
extended for up to an additional ninety (90) days if (1) the Breaching Party
begins to cure the alleged breach during the Cure Period, (2) the Breaching
Party acts diligently to complete the cure and (3) the alleged breach is of a
type that cannot reasonably be cured within the term of the initial Cure Period;

                           (c)      If, following the expiration of the Cure
Period (extended, if applicable) the Claiming Party still believes the Breaching
Party is in breach of any of its obligations under the Sub-License Agreement,
then the parties shall, during the next succeeding thirty (30) day period
(hereinafter "Negotiation Period") attempt to negotiate a resolution of their
differences;

                           (d)      If the parties are unable to resolve their
differences during the Negotiation Period, then the parties shall invoke the
arbitration provisions set forth hereinbelow.

                  16.2     ARBITRATION. Except as provided in paragraph 9.3, any
controversy or claim, whether based on contract, tort, statute, indemnity, or
other legal theory, arising out of or related to this Sub-License Agreement, or
any subsequent agreement between the parties or any breach thereof shall be
settled by arbitration before a retired Judge or Justice chosen by the parties
through the judicial Arbitration and Mediation Service ("JAMS") of Los Angeles
County. The parties agree that JAMS will provide a list of five available Judges
or Justices from which the parties will choose a single Judge or Justice to
arbitrate the dispute. If the parties cannot agree on a single Judge or Justice,
each party will have the right to reject or strike two (2) Judges or Justices
from the list of five. The arbitrator will then be chosen from the remaining
Judge(s) or Justice(s) by blind draw supervised by JAMS. In rendering his or her
award the retired Judge or Justice ("Arbitrator") shall have no authority or
jurisdiction to modify or change any provision of this Sub-License Agreement or
to award punitive damages. The Arbitrator shall have the authority to determine
the arbitrability of any dispute between the parties and shall also have the
authority to establish procedural rules to govern the arbitration of any dispute
between the parties. Any judgment upon the award rendered by the Arbitrator
shall be final and binding and may be entered in any court having jurisdiction
thereof.

                  It is agreed that prompt handling and disposition of any
dispute is important to the parties and the Arbitrator is hereby instructed to
assume adequate managerial initiative and control over discovery and other
aspects of the arbitration proceeding, to schedule prompt and expedited
discovery to be taken by either party, to manage and control discovery and
provide for substantially continuous work, whereby expediting the proceeding

                                       9
<PAGE>

as much as he or she deems reasonable, but in all events to try to effect a
final award within 180 days of filing, and within 20 days of the close of
evidence.

                  16.3     INJUNCTIVE RELIEF. Notwithstanding paragraphs 16.1
and 16.2 above, a Claiming Party may at any time seek appropriate injunctive
relief (including for, but not limited to, the purpose of seeking or obtaining
interim injunctive relief in order to preserve the status quo pending conclusion
of an arbitration proceeding pursuant to paragraph 16.2 herein) without
following the procedures in paragraphs 16.1 and 16.2 above if (1) it reasonably
believes that there is insufficient time to follow these procedures and (2) its
interests will be substantially at risk if it is unable to obtain immediate
injunctive relief, provided, however, that the Claiming Party shall not seek to
stop the day-to-day operations of the Breaching Party which are carried out in
the ordinary course of business. If appropriate, the Claiming Party will
promptly proceed to commence an arbitration proceeding in accordance with
paragraph 16.2.

         17.      MISCELLANEOUS

                  17.1     INTEGRATION. This Agreement constitutes the entire
agreement and understanding of the parties with respect to the transaction
contemplated hereby. This Agreement supersedes all prior agreements,
arrangements and understandings related to the subject matter hereof. No
representation, promise, inducement or statement of intention has been made by
any of the parties hereto not embodied in this Agreement or in the documents
referred to herein, and no party shall be bound by, or liable for, any alleged
representation, promise, inducement or statements of intention not set forth or
referred to herein.

                  17.2     GOVERNING LAW JURISDICTION AND VENUE. This Agreement
shall be governed by, and construed and enforced in accordance with, the laws of
the State of California.

                  17.3     BINDING EFFECT. All of the terms, covenants,
representations, warranties and conditions herein shall be binding upon, and
inure to the benefit of, and be enforceable by, the parties hereto, and their
respective successors, assignees and delegates, including, but not limited to,
successor corporations.

                  17.4     WAIVER. This Agreement may not be amended, modified,
superseded or cancelled, nor may any of the terms, covenants, representations,
warranties or conditions hereof be waived, except by a written instrument
executed by the party against whom such amendment, modification, supersedure,
cancellation or waiver is charged. The failure of any party at any time or times
to require performance of any provision hereof shall in no manner affect the
right at a later time to enforce the same. No waiver by any party of any
condition, or of any breach of any term, covenant, representation, or warranty
contained herein, in any one or more instances, shall be deemed to be or
construed as a further or continuing waiver of any such condition or breach or
waiver of any other condition or of any breach of any other term, covenant,
representation or warranty.

                                       10
<PAGE>

                  17.5     CONSTRUCTION. The captions and headings contained
herein are for convenient reference only, and shall not in any way affect the
meaning or interpretation of this Agreement. All references in this Agreement to
a "person" mean and refer to natural persons, partnerships, corporations,
trusts, associations, governmental agencies and any other entity of any kind
whatsoever. Notwithstanding any rule or maxim of construction to the contrary,
any ambiguity or Uncertainty in this Agreement shall not be construed against
either party based upon authorship of any of the provisions hereof.

                  17.6     COUNTERPARTS AND FACSIMILE SIGNATURES. This Agreement
may be executed by facsimile signature and executed in two or more counterparts,
each of which shall be deemed an original, and all of which together shall
constitute one and the same instrument.

                  17.7     ATTORNEYS' FEES. In the event that any party shall
bring an action in connection with the performance, breach or interpretation of
this Agreement, or in any action related to the transaction contemplated hereby,
the prevailing party in any such action, as may be determined by the court or
other tribunal (such as the Arbitrator) having jurisdiction, shall be entitled
to recover from the losing party in such action, also as determined by the court
or other tribunal having jurisdiction, all actual costs and expenses of such
litigation, including attorneys' fees, court costs, costs of investigation,
accounting, and other costs reasonably related to such litigation, in such
amount as may be determined in the discretion of the court or other tribunal
having jurisdiction of such action.

                  17.8     SEVERABILITY. In the event that any provision hereof
is determined to be illegal or unenforceable, such determination shall not
affect the validity or enforceability of the remaining provisions hereof, all of
which shall remain in full force and effect.

                  17.9     FURTHER DOCUMENTS. The parties each hereby covenant
and agree that, from time to time, after the date hereof, at the reasonable
request of any party, and without further consideration, they will execute and
deliver such other documents and take such other action as may be reasonably
required to carry out in all respects the transactions contemplated and intended
by this Agreement.

                  17.10    NOTICES. All notices, requests, demands and other
communications required or permitted to be given under this Agreement shall be
in writing and shall be conclusively deemed to have been duly given (1) when
hand delivered to the other party; or (2) when received when sent by facsimile
at the address and number set forth below (provided, however, that notices given
by facsimile shall not be effective unless either (a) a duplicate copy of such
facsimile notice is promptly given by depositing same in a post office with
first-class postage prepaid and addressed to the parties as set forth below, or
(b) the receiving party delivers a written confirmation of receipt for such
notice either by facsimile or any other method permitted under this paragraph
16.10; additionally, any notice given by facsimile shall be deemed received on
the next business day if such notice is received after 5:00 p.m. (recipient's
time) or on a nonbusiness day; or (3) five (5) business days after the same have
been deposited in a post office with first-class or certified mail, return
receipt

                                       11

<PAGE>

requested, postage prepaid and addressed to the parties as set forth below;
or (4) the next business day after the same have been deposited with a
national overnight or next business day delivery service reasonably approved
by the parties (Federal Express, DHL WorldWide Express and US Express Mail
being deemed approved by the parties), postage prepaid, addressed to the
parties as set forth below, provided that the sending party receives a
confirmation of delivery from the delivery service provider.

     PHS:                  Phoenix Hydrogen Systems LLC
                           3925 East Vernon Street
                           Long Beach, California 90815
                           Attention: President
                           Telephone: (310) 597-2442
                           Fax: (310) 597-8780

     PGS:                  Phoenix Gas Systems LLC
                           3925 East Vernon Street
                           Long Beach, California 90815
                           Attention: President
                           Telephone: (310) 597-2442
                           Fax: (310) 597-8780

     With a copy to:       Sofinov Societe Financiere d'Innovation Inc.
                           1981, avenue McGill College
                           Montreal (Quebec)
                           H3A 3C7
                           Attention: President
                           Telephone: (514) 847-2613
                           Fax: (514) 847-2628
     and to

     HBT:                  Hydrogen Burner Technology, Inc.
                           3925 East Vernon Street
                           Long Beach, California 90815
                           Attention: President
                           Telephone: (310) 597-2442
                           Fax: (310) 597-8780

                                       12
<PAGE>

                  17.11    GENDER AND TENSE. As used in this Agreement, the
masculine, feminine and neuter gender, and the singular or plural number,
shall each be deemed to include the other or others whenever the context so
indicates.

                  17.12    TIME. Time is of the essence in this Agreement.

                  17.13    EXHIBITS.  Any exhibit or appendix referred to in
this Agreement shall be attached to this Agreement and be incorporated into
this Agreement by the reference to same.

                  17.14    PARTIES IN INTEREST.  Nothing in this Agreement,
whether express or implied, is intended to confer any rights or remedies
under or by reason of this Agreement on any persons other than the parties to
it and their respective successors and assigns, nor is anything in this
Agreement intended to relieve or discharge the obligation or liability of any
third persons to any party to this Agreement, nor shall any provision give
any third persons a right of subrogation or action over or against any party
to this Agreement.

                  17.15    DATE AND DELIVERY OF AGREEMENT. Notwithstanding
anything to the contrary contained in this Agreement, the parties intend that
this Agreement shall be deemed effective, executed and delivered for all
purposes under this Agreement, and for the calculation of any statutory time
periods based on the date and agreement between parties is effective,
executed, and/or delivered, as of the date set forth on the first page of
this Agreement.

                  17.16    ASSIGNMENT. Neither party shall voluntarily or by
operation of law, assign, hypothecate, give, transfer, mortgage, sublet,
license or otherwise transfer or encumber all or any part of its rights,
duties or other interest in this Agreement other than as to PHS the royalties
or the proceeds thereof (collectively "Transfer"), without the prior written
consent of the other party. Any attempt to make a Transfer in violation of
this provision shall be a material default under this Agreement, and any
Transfer in violation of this provision shall be null and void.

                  17.17    COUNTING OF DAYS. If a party is required to
complete the performance of an obligation under this Agreement by a date
certain and such date is a Saturday, Sunday, religious holiday or Federal
holiday (collectively, a "Nonbusiness Day"), then the date for the completion
of such performance will be the next succeeding day that is not a Nonbusiness
Day.

                  17.18    CUMULATIVE OF REMEDIES. No remedy or election
hereunder shall be deemed exclusive but shall, wherever possible, be
cumulative with all other remedies at law or in equity, subject to the
provisions of paragraphs 13.2 and 13.3.

                  17.19    EXECUTION OF AGREEMENT. Each party has been
represented by counsel in the negotiation and execution of this Agreement.
This Agreement was executed voluntarily without any duress or undue influence
on the part of, or on behalf of, the parties hereto. The parties acknowledge
that they have read and understood this Agreement and its legal effect.

                                       13
<PAGE>

Each party acknowledges that it has had a reasonable opportunity to obtain
independent legal counsel for advice and representation in connection with
this Agreement. Each party further acknowledges that it is not relying on,
and it is not for the purposes of, the negotiation, execution, and delivery
of this Agreement, a client of the legal counsel employed by the other party
to this Agreement.

         IN WITNESS HEREOF, this Agreement is executed in duplicate by the
respective, duly authorized officers of the parties as of the day and year
first above written.

                                 PHOENIX HYDROGEN SYSTEMS LLC
                                 "PHS"

Attest:                          By:
                                    --------------------------------------------
                                        Name (Printed):
                                                       -------------------------
                                        Title:
                                              ----------------------------------

                                 PHOENIX GAS SYSTEMS LLC
                                 "PGS"

Attest:                          By:
                                    --------------------------------------------
                                        Name (Printed):
                                                       -------------------------
                                        Title:
                                              ----------------------------------

                                       14
<PAGE>

                                   APPENDIX A

         U.S. Patent No. 5,207,185 - dated May 4, 1993
         U.S. Patent No. 5,299,536 - dated April 5, 1994
         U.S. Patent No. 5,441,546 - dated August 15, 1995
         U.S. Patent No. 5,437,123 - dated August 1, 1995
         U.S. Patent No. 5,529,484 - dated June 25, 1996
         U.S. Patent No. 5,546,701 - dated August 20, 1996

                  A patent application was filed June 6, 1996 and is presently
         pending.

                  Two additional patents are in the process of preparation for
         filing and should be filed before the end of 1996.

                                       15
<PAGE>

                                                                       EXHIBIT E

                            FIRST REFUSAL AGREEMENT

         This First Refusal Agreement ("First Refusal Agreement") is entered
into by, between and among Sofinov Societe financiere d'innovation Inc.
("Sofinov"), David M. Moard ("Shareholder"), and Hydrogen Burner Technology,
Inc., a California corporation ("HBT"), as of the 7th day of August, 1996,
with reference to the following facts:

         A.       Shareholder is one of the shareholders of HBT.

         B.       Sofinov, through one or more affiliates (collectively, the
"Sofinov Affiliate"), has agreed to contribute the total sum of Four Million
Dollars ($4,000,000) (the "Sofinov Contribution") to the capital of Phoenix
Gas Systems, LLC, a California Limited Liability Company ("PGS") and Phoenix
Hydrogen Systems, LLC, a California Limited Liability Company ("PHS").

         C.       As partial consideration for the Sofinov Contribution,
Shareholder and each of the other shareholders of HBT have agreed to grant to
Sofinov a right of first refusal with respect to the HBT shares owned by
them, and HBT has agreed that it will not issue new shares without first
offering such new shares to Sofinov, and all newly issued shares shall be
subject to the restrictions set forth in this First Refusal Agreement.

         NOW, THEREFORE, FOR GOOD AND VALUABLE CONSIDERATION, THE PARTIES
AGREE AS FOLLOWS:

         1.       ENFORCEMENT PROVISIONS.

                  1.1      RESTRICTION ON TRANSFERS BY SHAREHOLDER. Except as
provided herein, Shareholder shall not sell, give, will, transfer, devise,
assign, hypothecate, encumber, or otherwise deal in, with or without
consideration, any of its HBT stock (referred to as the "HBT Stock"), whether
now owned or later acquired, or any part of it. This provision does not apply
to transfers described in clauses (a), (b), (c), (d) or (e) of this Section
1.1, if (i) the party to whom the HBT Stock is so transferred executes a
counterpart to this First Refusal Agreement evidencing his agreement to be
bound hereby and (2) following the transfer David Moard and/or Leonard
Greiner hold(s) no less than 50.1% of the voting control of HBT. Under the
circumstances described in the above sentence, Shareholder may transfer the
HBT Stock as follows: (a) a disposition of HBT stock without consideration;
(b) a disposition of HBT Stock as a direct result of an Involuntary Transfer,
as defined in Section 2.2 below; (c) a transfer to HBT and/or any person who
is an existing shareholder of HBT as of the date of this First Refusal
Agreement, all of whom are identified on Exhibit "A" attached hereto; (d) a
transfer to a person or entity listed on Exhibit "A" as an approved
transferee; and (e) a transfer to an employee of HBT in connection with a
general compensation plan, so long as

<PAGE>

the aggregate of all transfers and any new issuances by HBT to the employee
group does not exceed 5% of the outstanding shares of stock of HBT.

                  1.2      LEGEND ON SHARES. Each certificate representing
HBT Stock now owned or hereafter issued by HBT to Shareholder and each
certificate representing newly issued shares of stock in HBT issued by HBT to
any new or existing shareholder of HBT shall have the following legend
clearly imprinted on it:

         "The transfer, sale, assignment, hypothecation, encumbrance, or
         alienation of the shares represented by this Certificate is
         restricted by a First Refusal Agreement dated August __, 1996."

                  1.3      STAMPING OF CERTIFICATES. Shareholder agrees that,
on the "Closing Date" (as described below), he will present his Certificate
to the Secretary of HBT to have the legend referenced in the foregoing
Section 1.2 imprinted thereon.

                  1.4      RESTRICTIONS ON AFTER-ACQUIRED SHARES. The terms
of this First Refusal Agreement shall apply to all HBT Stock owned by
Shareholder as of the Closing Date, to any HBT Stock transferred in any
manner by Shareholder, and to any additional HBT Stock that HBT may issue to
Shareholder as a recapitalization, reorganization, stock dividend, stock
split, or reverse stock split, or that Shareholder purchases or otherwise
acquires. HBT agrees that any new shares issued by HBT shall be subject to
the legend conditions set forth in Section 1.2 of this First Refusal
Agreement, and that any new shareholder of HBT will be required, as a
condition of acquiring shares of HBT, to execute a counterpart to this First
Refusal Agreement evidencing his agreement to be bound hereunder.

         2.       CERTAIN DEFINITION5.

                  2.1      VOLUNTARY TRANSFER. A "Voluntary Transfer" is the
sale, transfer, assignment, hypothecation, encumbrance or other disposal,
with consideration, by Shareholder not under compulsion to do so, of all or
any part of his HBT Stock. A transfer of the HBT Stock to a revocable inter
vivos trust shall not be deemed a Voluntary Transfer within the terms of this
First Refusal Agreement; provided, however, that the distribution of that
stock to beneficiary(ies) other than the Shareholder-grantor of such a trust
shall be considered a Voluntary Transfer.

                  2.2      INVOLUNTARY TRANSFER. The following shall be
deemed to be "Involuntary Transfers":

                           (a)      The beginning by Shareholder of any
voluntary proceeding under the bankruptcy laws of the United States or any
foreign, state, local or municipal laws for the benefit of creditors;

                                       2
<PAGE>

                           (b)      The failure of Shareholder to terminate
any involuntary proceedings under said bankruptcy laws or state, local or
municipal laws within thirty (30) days of the commencement thereof;

                           (c)      A general assignment for the benefit of
creditors of Shareholder;

                           (d)      The appointment of a receiver,
conservator, trustee in bankruptcy, trustee in a dispute, or the like, to
take charge of any of the HBT Stock owned by Shareholder, which appointment
is not discharged within thirty (30) days;

                           (e)      Any attachment or other lien imposed by a
creditor of Shareholder on any of his HBT Stock, or other assets, not
released within thirty (30) days of imposition;

                            (f)     Any transfer of HBT Stock by Shareholder
to his spouse, whether pursuant to (i) a decree of divorce or dissolution,
(ii) a property settlement agreement, (iii) a separation agreement or (iv)
other marital transfer or division of property, including, but not limited
to, a transfer of all or a part of the HBT Stock in recognition of his
spouse's interest therein or in the event of any other Involuntary Transfer
of all or a part of the HBT Stock;

                           (g)      Any transfer of HBT Stock following, and
as a result of, the death of Shareholder.

         3.       SOFINOV'S OPTION TO PURCHASE THE HBT STOCK IN THE EVENT OF
                  A VOLUNTARY TRANSFER OR NEW ISSUANCE.

                  3.1      SHAREHOLDER'S OFFER. Prior to making a Voluntary
Transfer of all or any portion of his HBT Stock, Shareholder shall first
deliver a written offer (the "Offer") to Sofinov, in accordance with this
Section 3, for all of the HBT Stock that he desires to so transfer. The
effective date of the Offer shall be the date of its delivery to Sofinov.

                  3.2      ACCEPTANCE OF OFFER. Sofinov shall have thirty
(30) days following the date of an Offer to purchase all or any portion of
the HBT Stock which is offered. To accept the Offer, Sofinov must deliver
notice of its acceptance to Shareholder within the thirty (30) day period.
The purchase price and terms for a Voluntary Transfer shall be the purchase
price and terms as offered by Shareholder, prorated, if applicable, to
reflect a purchase of less than all of the HBT Stock offered. Shareholder
shall be required to represent and warrant that (i) he owns the HBT Stock,
free and clear of any liens or encumbrances, and (ii) he is lawfully
empowered to transfer the HBT Stock without the necessity of acquiring the
consent or approval of any other person. If Sofinov fails to timely accept or
reject an Offer, it shall be deemed that Sofinov has rejected it.

                                       3
<PAGE>

                  3.3      NON-ACCEPTANCE OF OFFER AND RIGHT OF FIRST REFUSAL.

                           (a)      If Sofinov does not timely accept the
Offer, Shareholder has the right to offer to sell all of his offered HBT
Stock to any other person upon such terms and conditions as he deems
advisable, but shall not sell them without giving Sofinov a right of first
refusal (the "Right of First Refusal") to purchase the offered HBT Stock at
the price and upon the terms of a bona fide written offer by such other
person.

                           (b)      To implement this Right of First Refusal,
Shareholder shall deliver to Sofinov, within ten (10) days after Shareholder
receives a bona fide written offer from a third party to purchase
Shareholder's HBT Stock, which offer Shareholder intends to accept, written
notice of the name and address of the proposed purchaser and the terms and
conditions of the proposed purchase. This notice shall be deemed an offer to
Sofinov. Sofinov shall have thirty (30) days after its receipt of the notice
to accept that offer by giving written notice to Shareholder.

                           (c)      So long as HBT is an S-corporation for
Federal income tax purposes, Sofinov's ability to exercise the Right of First
Refusal may be restricted as set forth in this paragraph 3.3(c) if and only
if the proposed purchaser referred to in paragraph 3.3(b) above is a BONA
FIDE purchaser and is a person who would be a shareholder of HBT without
adversely affecting HBT's status as a "small business corporation" for
purposes of Code Section 1361(b) or any other or successor provision
governing HBT's status as an S-corporation for Federal income tax purposes.
If the condition set forth in the preceding sentence is satisfied, then
Sofinov may exercise its Right of First Refusal only if, concurrently with
such exercise, it offers to indemnify each of the active Shareholders (not
including the selling Shareholder) for any adverse Federal or state income
tax consequences suffered by such Shareholder as a consequence of HBT's loss
of its status as an S-corporation.

                           (d)      If neither Sofinov nor a Sofinov
Affiliate purchases all of Shareholder's HBT Stock that was the subject of
the notice, Shareholder may dispose of the remaining HBT Stock that was the
subject of the notice to the transferee identified in the notice, but at no
lower price and on no more favorable terms than those specified in the
notice, and provided further that the sale or transfer to the prospective
transferee is completed within ninety (90) days of the date of the notice.
After such 90-day period, if Shareholder's HBT Stock has not been sold to the
prospective transferee, the HBT Stock shall once again be subject to the
restrictions of this First Refusal Agreement.

                           (e)      Each transferee or any subsequent
transferee of the HBT Stock shall (i) hold the HBT Stock subject to all of
the provisions of this First Refusal Agreement; (ii) make no further transfer
except as provided in this First Refusal Agreement; and (iii) concurrently
with the transfer of the HBT Stock, execute this First Refusal Agreement.

                                       4
<PAGE>

                  3.4      RIGHT OF FIRST REFUSAL UPON ISSUANCE BY HBT.

                           (a)      Except as provided herein, HBT shall not
grant, award or issue any new or additional shares of common or preferred
stock of HBT, or grant, award or issue any rights, warrants or options for
the purchase of common or preferred stock of HBT or stock or other securities
convertible into common or preferred stock of HBT, including but not limited
to rights or options to purchase such convertible stock or other securities
(collectively, "Newly Issued Stock"), without first offering to sell the
Newly Issued Stock to Sofinov as set forth in Section 3.4(b) below. This
provision does not apply to the issuance of Newly Issued Stock to an employee
of HBT in connection with a general compensation plan, so long as the
aggregate of all transfers by HBT shareholders and any new issuances by HBT
to the employee group does not exceed 5% of the outstanding shares, and the
employee executes a counterpart of this First Refusal Agreement evidencing
his agreement to be bound hereunder ("Permitted Employee").

                           (b)      HBT shall deliver to Sofinov, within ten
(10) days after HBT receives a bona fide written offer from a third party who
is not a Permitted Employee to purchase Newly Issued Stock, which offer HBT
intends to accept, written notice of the name and address of the proposed
purchaser and the terms and conditions of the proposed purchase. This notice
shall be deemed an offer to Sofinov. Sofinov shall have thirty (30) days
after its receipt of the notice to accept that offer by giving written notice
to the Secretary of HBT. If Sofinov does not purchase all of the Newly Issued
Stock, HBT may sell the Newly Issued Stock, subject to the limitations
described in clauses (c) and (d) of Section 3.3 of this Agreement. HBT shall
amend its Articles of Incorporation to set forth the provisions of this
Section 3.4 on or prior to the Closing Date, as defined in Section 4.

         4.       FIRST REFUSAL AGREEMENT CONTINGENT UPON SOFINOV
CONTRIBUTION. This First Refusal Agreement is expressly contingent upon, and
shall not be effective unless and until, the Sofinov Affiliate makes the
Sofinov Contribution (the date it is made being referred to as the "Closing
Date").

         5.       MISCELLANEOUS PROVISIONS.

                  5.1      INTEGRATION. This First Refusal Agreement
constitutes the entire agreement and understanding of the parties with
respect to the transactions contemplated hereby, and supersedes all prior
agreements, arrangements and understandings related to the subject matter
hereof. No representation, promise, inducement or statement of intention has
been made by any of the parties hereto not embodied in this First Refusal
Agreement or in the documents referred to herein, and no party shall be bound
by, or liable for, any alleged representation, promise, inducement or
statements of intention not Set forth or referred to herein.

                  5.2      GOVERNING LAW, JURISDICTION AND VENUE. This First
Refusal Agreement shall be governed by and construed and enforced in
accordance with the laws of the State of California.

                                       5
<PAGE>

                  5.3      BINDING EFFECT. All of the terms, covenants,
representations, warranties and conditions herein shall be binding upon, and
inure to the benefit of, and be enforceable by, the parties hereto, and their
respective successors, assignees and delegatees, including, but not limited
to, successor corporations.

                  5.4      WAIVER. This First Refusal Agreement may not be
amended, modified, superseded or cancelled, nor may any of the terms,
covenants, representations, warranties or conditions hereof be waived, except
by a written instrument executed by the party against whom such amendment,
modification, supersedure, cancellation or waiver is charged. The failure of
any party at any time or times to require performance of any provision hereof
shall in no manner affect the right at a later time to enforce the same. No
waiver by any party of any condition, or of any breach of any term, covenant,
representation, or warranty contained herein, in any one or more instances,
shall be deemed to be or construed as a further or continuing waiver of any
such condition or breach or waiver of any other condition or of any breach of
any other term, covenant, representation or warranty.

                  5.5      CONSTRUCTION. The captions and headings contained
herein are for convenient reference only, and shall not in any way affect the
meaning or interpretation of this First Refusal Agreement. All references in
this First Refusal Agreement to a "person" mean and refer to natural persons,
partnerships, corporations, trusts, associations, governmental agencies and
any other entity of any kind whatsoever. Notwithstanding any rule or maxim of
construction to the contrary, any ambiguity or uncertainty in this First
Refusal Agreement shall not be construed against either party based upon
authorship of any of the provisions hereof.

                  5.6      COUNTERPARTS AND FACSIMILE SIGNATURES. This First
Refusal Agreement may be executed by facsimile signature and executed in two
or more counterparts, each of which shall be deemed an original, and all of
which together shall constitute one and the same instrument.

                  5.7      ATTORNEYS' FEES. In the event that any party shall
bring an action in connection with the performance, breach or interpretation
of this First Refusal Agreement, or in any action related to the transaction
contemplated hereby, the prevailing party in such action, as may be
determined by the court or other tribunal having jurisdiction, shall be
entitled to recover from the losing party in such action, also as determined
by the court or other tribunal having jurisdiction, all actual costs and
expenses of such litigation, including attorneys' fees, court costs, costs of
investigation, accounting, and other costs reasonably related to such
litigation, in such amount as may be determined in the discretion of the
court or other tribunal having jurisdiction of such action.

                  5.8      SEVERABILITY. In the event that any provision
hereof is determined to be illegal or unenforceable, such determination shall
not affect the validity or enforceability of the remaining provisions hereof,
all of which shall remain in full force and effect.

                                       6

<PAGE>

                  5.9      FURTHER DOCUMENTS. The parties each hereby
covenant and agree that, from time to time, after the date hereof, at the
reasonable request of any party, and without further consideration, they will
execute and deliver such other documents and take such other action as may be
reasonably required to carry out in all respects the transactions
contemplated and intended by this First Refusal Agreement.

                  5.10     NOTICES. All notices, requests, demands and other
communications required or permitted to be given under this First Refusal
Agreement shall be in writing and shall be conclusively deemed to have been
duty given (1) when hand delivered to the other party; or (2) when received
when sent by facsimile at the address and number set forth below (provided,
however, that notices given by facsimile shall not be effective unless either
(a) a duplicate copy of such facsimile notice is promptly given by depositing
same with first-class postage prepaid and addressed to the parties as set
forth below, or (b) the receiving party delivers a written confirmation of
receipt for such notice either by facsimile or any other method permitted
under this subparagraph; additionally, any notice given by telex or facsimile
shall be deemed received on the next business day if such notice is received
after 5:00 p.m. (recipient's time) or on a nonbusiness day; or (3) five (5)
business days after the same have been deposited in a post office with
first-class or certified mail, return receipt requested, postage prepaid and
addressed to the parties as set forth below; or (4) the next business day
after same have been deposited with a national overnight or next business day
delivery service reasonably approved by the parties (Federal Express, DHL
WorldWide Express and US Express Mail being deemed approved by the parties),
postage prepaid, addressed to the parties as set forth below with
next-business-day delivery guaranteed, provided that the sending party
receives a confirmation of delivery from the delivery service provider.

               TO SOFINOV:       Societe financiere d'innovation Inc.
                                 1981, avenue McGill College
                                 Montreal (Quebec)
                                 H3A 3C7
                                 Attention:    President
                                 Telephone:    (514) 847-2613
                                 Telecopy:     (514) 847-2628

               TO SHAREHOLDER:
                              ---------------------------------------
                              Address:
                                      -------------------------------

                              ---------------------------------------
                              Attention:
                                        -----------------------------
                              Telephone: (   )
                                         ----------------------------
                              Telecopy:  (   )
                                         ----------------------------

                                       7
<PAGE>

     TO HBT:               Hydrogen Burner Technology, Inc.
                           3925 Vernon Street
                           Long Beach, California 90815
                           Attention:    President
                           Telephone:    (310) 597-2442
                           Telecopy:     (310) 597-8780

                  5.11     GENDER AND TENSE. As used in this First Refusal
Agreement, the masculine, feminine and neuter gender, and the singular or
plural number, shall each be deemed to include the other or others whenever
the context so indicates.

                  5.12     TIME. Time is of the essence in this First Refusal
Agreement.

                  5.13     PARTIES IN INTEREST. Nothing in this First Refusal
Agreement, whether express or implied, is intended to confer any rights or
remedies under or by reason of this First Refusal Agreement on any persons
other than the parties to it and their respective successors and assigns, nor
is anything in this First Refusal Agreement intended to relieve or discharge
the obligation or liability of any third persons to any party to this First
Refusal Agreement, nor shall any provision give any third persons a right of
subrogation or action over or against any party to this First Refusal
Agreement.

                  5.14     DATE AND DELIVERY OF FIRST REFUSAL AGREEMENT.
Notwithstanding anything to the contrary contained in this First Refusal
Agreement, the parties intend that this First Refusal Agreement shall be
deemed effective, executed and delivered for all purposes under this First
Refusal Agreement, and for the calculation of any statutory time periods
based on the date an agreement between parties is effective, executed, and/or
delivered, as of the date set forth on the first page of this First Refusal
Agreement.

                  5.15     ASSIGNMENT. Neither party shall, voluntarily or
by operation of law assign, hypothecate, give, transfer, mortgage, sublet,
license or otherwise transfer or encumber all or any part of its rights,
duties or other interest in this First Refusal Agreement, or the proceeds
thereof (collectively, Assignment), without the other party's prior written
consent, which consent shall not be unreasonably withheld or delayed. Any
attempt to make an Assignment in violation of this provision shall be a
material default under this First Refusal Agreement, and any Assignment in
violation of this provision shall be null and void.

                  5.16     COUNTING OF DAYS. If a party is required to
complete the performance of an obligation under this First Refusal Agreement
by a date certain and such date is a Saturday, Sunday or Federal bank holiday
(collectively, a "Nonbusiness Day"), then the date for the completion of such
performance will be the next succeeding day that is not a Nonbusiness Day.

                                       8
<PAGE>

                  5.17     CUMULATION OF REMEDIES. No remedy or election
hereunder shall be deemed exclusive but shall, wherever possible, be
cumulative with all other remedies at law or in equity.

                  5.18     EXECUTION OF FIRST REFUSAL AGREEMENT. This First
Refusal Agreement was executed voluntarily without any duress or undue
influence on the part of, or on behalf of, the parties hereto. The parties
acknowledge that they have read and understood this First Refusal Agreement
and its legal effect. Each party acknowledges that it has had a reasonable
opportunity to obtain independent legal counsel for advice and representation
in connection with this First Refusal Agreement. Each party further
acknowledges that it is not relying on, and it is not for the purposes of,
the negotiation, execution, and delivery of this First Refusal Agreement, a
client of the legal counsel employed by any of the other parties to this
First Refusal Agreement,

         IN WITNESS HEREOF, this Agreement is executed in duplicate by the
respective, duly authorized officers of the parties as of the day and year
first above written.

                                 "SOFINOV"

                                 SOFINOV SOCIETE FINANCIERE
                                 D'INNOVATION INC.,

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

Attest:                          By:
                                    ------------------------------------------

                                 Its:
                                     -----------------------------------------

                                 "SHAREHOLDER"

Attest:                          David M. Moard
                                 ---------------------------------------------

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

                                 "HBT"

                                 HYDROGEN BURNER TECHNOLOGY, INC.,
                                 a California corporation

Attest:                          By:
                                    ------------------------------------------

                                 Its:
                                     -----------------------------------------

                                       9
<PAGE>

                                    EXHIBIT A
                             FIRST REFUSAL AGREEMENT

     Existing HBT shareholders (Paragraph 1.1 (c), Page 1):
             David & Susan Moard
             Leonard & Rosalind Greiner
             Joseph & Maxine Stell
             Ronald & Maryann Stell
             Eric & Nancy Stell
             Albert & Thelma Family Trust
             D.V. & Harriet Wedeman
             Thomas & Brenda McMahon
             John & Linda Okerblom
             Bharat & Varsha Bhatt

     Approved transferees (Paragraph 1.1 (d), Page 1):
             Hydrogen Burner Technology, Inc.
             Larry Frost
             Richard Woods
             Hazen Burford

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