EXHIBIT A                    Exhibit 10.18


                      LIMITED LIABILITY COMPANY AGREEMENT

                                       OF

                                PLUG POWER, LLC

                     A DELAWARE LIMITED LIABILITY COMPANY


    THIS LIMITED LIABILITY COMPANY AGREEMENT is made as of this 27th day of
June, 1997, by those parties signing this Agreement on the signature page and
all other persons who become members of Plug Power, LLC ("Company") pursuant
to the terms of this Limited Liability Company Agreement.  

                                    RECITALS

    WHEREAS, Edison Development Corporation, a Michigan corporation ("EDC"),
as the sole Member, formed Plug Power, LLC, a limited liability company, by
filing a certificate of formation ("Certificate") pursuant to the Delaware
Limited Liability Company Act (the "Act") with the Office of the Secretary of
State of the State of Delaware in accordance with the Act on June 11, 1997.

    WHEREAS, the purpose of the Company is to develop, manufacture, market and
distribute fuel cell systems capable of delivering electricity or waste heat 
and engage in related activities.
 
    WHEREAS, EDC wishes to admit Mechanical Technology Inc., a New York
corporation ("MTI") as a Member of the Company. 

     WHEREAS, EDC and MTI have agreed to enter into this Limited Liability
Company Agreement to govern the operations and procedures of the Company. 

     NOW, THEREFORE, in consideration of the mutual covenants, conditions and
agreements set forth in this Limited Liability Company Agreement each Member
agrees as follows:






















                                   ARTICLE I

                                  DEFINITIONS

   1.   Definitions.  For purposes of this Agreement, unless the language or
context clearly indicates that a different meaning is intended, the words,
terms and phrases defined in this section have the following meanings:

   1.1  "Act" means the Delaware Limited Liability Company Act, 6 Del. C.
18-101, et seq., as amended from time to time.

   1.2  "Adjusted Basis" means the basis of the Company's Property as determined
for federal income tax purposes pursuant to Code Section 1011.

   1.3  "Adjusted Capital Account Deficit" means, with respect to any Member,
the deficit balance, if any, in such Member's Capital Account as of the end of
the relevant Taxable Year after giving effect to the following adjustments:

      (a) Credit the Capital Account with any amounts such Member is
     obligated to restore pursuant to any provisions of this Agreement or is
     deemed obligated to restore pursuant to the penultimate sentences of
     Regulations Sections 1.704-2(g)(1) and 1.704-2(i)(5); and

      (b) Debit the Capital Account with the items described in Regulations
     Sections 1.704-1(b)(2)(ii)(d)(4)-(6). 

This definition of Adjusted Capital Account Deficit is intended to comply with
the provisions of Regulations Section 1.704-1(b)(2)(ii)(d) and shall be
interpreted consistently therewith.

   1.4  "Affiliate" means, with respect to any Member, (i) any Person directly
or indirectly controlling, controlled by, or under common control with the
Member, (ii) any Person owning or controlling ten percent (10%) or more of the
outstanding voting interests of the Member, (iii) any officer, director, member
or general partner of the Member, or (iv) any Person who is an officer,director,
member, general partner, trustee, or holder of ten percent (10%) or more of the
voting interests of any Person described in clauses (i) through (iii) of this
sentence.  For purposes of this definition, the term "controls," "is controlled
by," or "is under common control with" shall mean the possession, direct or
indirect, of the power to direct or cause the direction of the management and
policies of a person or entity, whether through the ownership or voting
securities by contract or otherwise.  

   1.5  "Agreement" means this Limited Liability Company Agreement, as it may
be amended from time to time under Article XVI.















   1.6  "Applicable Federal Rate" means the applicable federal rate as defined
in Code Section 1274. 

   1.7  "Awarded Contracts" means the Contract Proposals for which the Company
has received written confirmation from the other party to the Contract Proposal
by not later than April 1, 1999 that the Contract Proposal has been awarded to
the Company.

   1.8  "Awarded Funds" means the funds received by the Company under the
Awarded Contracts as of April 1, 2001.

   1.9  "Capital Account" means the account maintained for each Member in
accordance with Section 4.6.    

   1.10 "Capital Contributions" means, with respect to any Member, the amount
of money and the initial Gross Asset Value of any Property (other than money)
contributed to the Company under Section 4.1, 4.2, or 4.3, with respect to the
Membership Interest in the Company held by such Member.
                    
   1.11 "Certificate" means the Certificate of Formation of the Company to be
filed with the Office of the Secretary of State of the State of Delaware in
accordance with the Act.  

   1.12 "Class A Member" means any Person listed in Exhibit A, as it may be
amended from time to time.

   1.13 "Class A Membership Interest" means all of the interest of a Class A
Member in the Company, including a Class A Member's: (a) right to a share of the
Profits and Losses of, and to receive distributions from, the Company; (b) right
to inspect the Company's books and records; and (c) Voting Rights and right to
participate in the management and affairs of the Company.

   1.14 "Class B Member" means any Key Employee to whom the Management
Committee has issued a Class B Membership Interest and is listed in Exhibit B,
as it may be amended from time to time.

   1.15 "Class B Membership Interest" means all of the interest of a Class B
Member in the Company, including a Class B Member's right to a share of the
Profits and Losses, and to receive distributions from, the Company, subject to
any vesting schedule which the Management Committee may establish in connection
with the issuance of a Class B Membership Interest to a Key Employee.  No Class
B Member shall have any Voting Rights or right to participate in the management
or affairs of the Company.  Class B Members shall have only such rights as
prescribed by the Act or this Agreement to inspect the Required Records.  All
















Class B Membership Interests will be converted to Class A Membership Interests
on the earlier of the date on which the Company (or its successor) files a
registration statement for the public sale of interests in the Company (or
shares of a successor), under the Securities Act of 1933, upon approval by a
majority of the Class A Shares Issued of (a) a sale, lease, assignment,
transfer, or other conveyance of all or substantially all of the assets of the
Company, or (b) a merger, combination, or dissolution of the Company. The
conversion shall be reflected by amending Exhibit A to reflect the admission of
the Class B Members as Class A Members of the Company and holding the same
number of Class A Shares as the number of Class B Shares previously held by
such Class B. Members.

   1.16 "Code" means the Internal Revenue Code of 1986, as amended.

   1.17 "Contract Proposals" means the contract proposals set forth on Exhibit
D and which Contract Proposals are subject to the approval of the Management
Committee pursuant to Section 7.3(g).  Contract Proposals shall not include
the contracts or contract proposals set forth in Exhibit E.

   1.18 "Contribution Agreements" means the EDC Contribution Agreement and the
MTI Contribution Agreement.

   1.19 "Company" means Plug Power, LLC, a Delaware limited liability company.
   
   1.20 "Company Liability" means any enforceable debt or obligation for which
the Company is liable or which is secured by any Company Property.

   1.21 "Company Minimum Gain" has the meaning set forth in Regulations Sections
1.704-2(b)(2) and 1.704-2(d) for "partnership minimum gain".

   1.22 "Company Property" means any Property owned by the Company.
   
   1.23 "Default Rule" means a rule stated in the Act:

         (a) which structures, defines, or regulates the finances, governance,
   operations, or other aspects of a limited liability company organized under
   the Act; and
       
         (b) which applies except to the extent it is modified or overridden
   through the provisions of a limited liability company's certificate of
   formation or limited liability company.



















   1.24 "Depreciation" means (a) an amount equal to the depreciation,
amortization, or other cost recovery deduction allowable with respect to an
item of Company Property for each Taxable Year, or (b), if the Gross Asset
Value of an item of Company Property differs from its Adjusted Basis at the
beginning of a Taxable Year, Depreciation shall equal the amount of the
depreciation, amortization, or other cost recovery deduction for such Taxable
Year determined as if such Property's Adjusted Basis equalled its Gross Asset
Value.  

   1.25 "Disassociation" means the occurrence of any event which causes a Key
Employee Member to become a Disqualified Person.

   1.26 "Disqualified Person" means a Key Employee Member who:
   
         (a) terminates his/her employment with the Company for any reason
   prior to age sixty (60);

         (b) whose employment is terminated by the Company for any or no
   reason at any time; or
   
         (c) who makes an assignment for the benefit of creditors, files a
   voluntary petition of bankruptcy, is adjudicated bankrupt or insolvent,  or
   an order for relief in any bankruptcy or insolvency proceeding is entered
   against the Key Employee Member; files a petition seeking any reorganization,
   arrangement, composition, readjustment, liquidation, or similar relief under
   any statute, law or regulation; seeks, consents to, or acquiesces in the
   appointment of a trustee for the Key Employee Member or all or any
   substantial part of the Key Employee Member's properties; files an answer
   or other pleading admitting or failing to contest the material allegations of
   a petition filed against the Key Employee Member in any proceeding described
   above; any proceeding filed against the Key Employee Member seeking
   reorganization, arrangement, composition, a readjustment, liquidation,
   dissolution, or similar relief under any statute, law, or regulation,
   continues for one hundred twenty (120) days after the commencement thereof;
   or the appointment of a trustee for the Key Employee Member or all or any
   substantial part of the Member's properties without the Member's agreement
   or acquiescence, which appointment is not vacated or stayed within one
   hundred twenty (120) days or, if the appointment is stayed, continues for
   one hundred twenty (120) days after the expiration of the stay during which
   period the appointment is not vacated.
   
   1.27 "EDC" means Edison Development Corporation, a Michigan corporation.


















   1.28 "EDC Contribution Agreement" means the Contribution Agreement dated as
of the date of this Agreement between the Company and EDC.

   1.29 "Gross Asset Value" means, with respect to any Property, the Property's
Adjusted Basis, except as follows: 

         (a) The initial Gross Asset Value of any Property contributed by a
   Member shall be the gross fair market value of such Property, as determined
   by the contributing Member and the Management Committee;
   
         (b) The Gross Asset Value of all Company Property shall be adjusted to
   equal its gross fair market value, as determined by the Management Committee,
   at the following times:  (i) the acquisition of an additional Membership
   Interest by any new or existing Member in exchange for more than a de minimis
   Capital Contribution; (ii) the distribution by the Company to a Member of
   more than a de minimis amount of the Company Property as consideration for a
   Membership Interest in the Company; and (iii) the liquidation of the Company
   within the meaning of Regulations Section 1.704-1(b)(2)(ii)(g); provided,that
   adjustments under clauses (i) and (ii) above shall be made at the sole
   election of the Management Committee;

         (c) The Gross Asset Value of Company Property distributed to a Member
   shall be adjusted to equal its gross fair market value on the date of
   distribution; and

         (d) The Gross Asset Value of Company Property shall be adjusted to
   reflect any adjustments pursuant to Code Section 734(b) or Code Section 743
   (b), but only as required under Regulation Section 1.704-1(b)(2)(iv)(m) and
   Section 5.2(g) of this Agreement.


If the Gross Asset Value of any Company Property has been determined or adjusted
pursuant to subsections (a), (b) or (d) of this definition, such Gross Asset
Value shall thereafter be adjusted by the Depreciation computed as provided in
Section  1.24(b).

   1.30 "Involuntary Withdrawal" means, with respect to any Class A Member, the
occurrence of any of the following events: 

         (a) The Member: makes an assignment for the benefit of creditors,
   files a voluntary petition of bankruptcy, is adjudicated bankrupt or
   insolvent, or an order for relief in any bankruptcy or insolvency proceeding
   is entered against the Member; files a petition seeking for the Member any
   reorganization, arrangement, composition, readjustment, liquidation,
   dissolution, or similar relief under any statute, law or regulation; seeks,
   consents to, or acquiesces in the appointment of a trustee for, receiver for,
   or liquidation of the Member, or of all or any substantial part of the













   Member's properties; or the Member files an answer or other pleading
   admitting or failing to contest the material allegations of a petition filed
   against the Member in any proceeding described above;

         (b) Any proceeding against the Member seeking reorganization,
   arrangement, composition, a readjustment, liquidation, dissolution, or
   similar relief under any statute, law, or regulation, continues for one
   hundred twenty (120) days after the commencement thereof, or the appointment
   of a trustee, receiver, or liquidator for the Member or all or any
   substantial part of the Member's properties without the Member's agreement or
   acquiescence, which appointment is not vacated or stayed within one hundred
   twenty (120) days or, if the appointment is stayed, continues for one hundred
   twenty (120) days after the expiration of the stay during which period the
   appointment is not vacated;

         (c) If the Member is acting as a Member by virtue of being a trustee
   of a trust, the termination of the trust;

         (d) If the Member is a partnership or limited liability company, the
   dissolution and commencement of winding up of the partnership or limited
   liability company;
   
         (e) If the Member is a corporation, the dissolution of the corporation
   or the revocation of its charter; or
   
         (f) If the Member is an estate, the distribution by the fiduciary of
   the estate's entire interest in the Company.

   1.31 "Key Employee" means any person designated by the Management Committee
   as a Key Employee and as eligible to become a Class B Member.
   
   1.32 "Management Committee" means the committee appointed under Section 7.1.

   1.33 "Manager" means any Person appointed to the Management Committee by
a Class A Member. A Manager may sit on the board of directors or management
committee of another Person, even if the business of such Person, or that of any
Affiliate of such Person, is in direct or indirect competition with the fuel
cell business of the Company, provided such Manager refrains from taking any
action that would be in violation of the Manager's duties and obligations to
the Company and Members set forth in the Act or this Agreement, including,
without limitation, the duties and obligations set forth in Section 7.5.



















   1.34 "Member" means any Person that is a Class A Member or a Class B
Member.  

   1.35 "Member Nonrecourse Deductions" has the meaning set forth in
Regulations Sections 1.704-2(i)(1) and (2).

   1.36 "Member Nonrecourse Liability" has the meaning set forth in Regulations
Section 1.704-2(b)(4).   

   1.37 "Member Nonrecourse Liability Minimum Gain" means an amount, with
respect to each Member Nonrecourse Liability, equal to the Company Minimum Gain
that would result if such Member Nonrecourse Liability were treated as a
Nonrecourse Liability, determined in accordance with Regulations Section
1.704-2(i)(3).

   1.38 "Membership Interest" means a Class A Membership Interest or a Class B
Membership Interest.

   1.39 "MTI" means Mechanical Technology Incorporated, a New York corporation.
  
   1.40 "MTI Contribution Agreement" means the Contribution Agreement dated as
of the date of this Agreement between the Company and MTI.
     
   1.41 "Net Awarded Funds" means the Awarded Funds less any amounts the
Company is required under the terms of the Awarded Contracts to expend under
subcontracts with third parties for the performance of the Company's obligations
under the Awarded Contracts.

   1.42 "Net Income" means the net income (or loss) of the Company, for any
applicable period of determination, determined in accordance with generally
accepted accounting principals, but excluding therefrom any gains or losses on
the sale or other disposition, not in the ordinary course of business, of
investments or fixed or capital asset.

   1.43 "Net Operating Income"  means the Net Income of the Company, for any
applicable period of determination, less the amount used to pay or establish
reserves for all Company expenses, debts, payments, capital improvements,
reinvestments, replacements and contingencies, all as determined by the
Management Committee.

   1.45 "Nonrecourse Deductions" has the meaning set forth in Regulations
Section 1.704-2(b)(1).

   1.46 "Nonrecourse Liabilities" has the meaning set forth in Regulations
Section 1.704-2(b)(3).   















   1.47 "Person" includes a natural person, limited liability company,
corporation, partnership, limited partnership, joint venture, association,
business trust, estate, trust, enterprise, and any other legal entity.

   1.48 "Profits and Losses" means an amount equal to the Company's taxable
income or loss for each Taxable Year, determined in accordance with Code Section
703(a) (for this purpose, all items of income, gain, loss, or deduction required
to be stated separately pursuant to Code Section 703(a)(1) shall be included in
taxable income or loss) adjusted as follows: 

         (a) Income exempt from federal income tax shall be added to such
   taxable income or loss;

         (b) Expenditures described in or treated as Code Section 705(a)(2)(B)
   expenditures (pursuant to Regulations Section 1.704-1(b)(2)(iv)(i)) shall be
   subtracted from such taxable income or loss;
   
         (c) Adjustments to the Gross Asset Value of any Company Property
   pursuant to subsection (b) or (c) of the "Gross Asset Value" definition shall
   be taken into account as gain or loss from the disposition of such Property
   for purposes of computing Profits and Losses;
   
         (d) Gain or loss which is recognized for federal income tax purposes as
   a result of any disposition of Property shall be computed by reference to the
   Gross Asset Value of such Property, notwithstanding that its Adjusted Basis
   differs from its Gross Asset Value; 

         (e) In lieu of the depreciation, amortization, and other cost recovery
   deductions taken into account in computing such taxable income or loss, there
   shall be taken into account Depreciation computed in accordance with the
   provisions of Section 1.24; and 

         (f) Notwithstanding any other provision of this definition, any items
   which are specially allocated pursuant to Section 5.2 or Section 5.3 shall
   not be taken into account in computing Profits or Losses.
   
   1.49 "Projected Net Awarded Funds" has the meaning set forth in Section 4.7.

   1.50 "Property" means all property whether real or personal, tangible or
   intangible (including goodwill), but excluding services and promises to
   perform services in the future.



















   1.51 "Regulations" means the permanent, temporary, proposed, or proposed and
temporary regulations promulgated under the Code, as such regulations may be
amended from time to time (including corresponding provisions of succeeding
regulations).

   1.52 "Required Records" means those records that the Company is required to
maintain under Section 10.1 and under the Act.

   1.53 "Share" means a single unit of either a Class A Membership Interest or
Class B Membership Interest.

   1.54 "Shares Authorized" means the total number of Shares which may be issued
by the Management Committee or as otherwise provided in this Agreement with the
total number of authorized Shares for a Class A Membership Interest to equal
18,000,000 and the total number of Shares for a Class B Membership Interest to
equal 3,000,000.

   1.55 "Shares Issued" means the number of Shares of Class A Membership
Interest issued to a Member as reflected on Exhibit A under the column "Shares"
or the number of Shares of Class B Membership Interest issued to a Member as
reflected on Exhibit B under the column "Shares".

   1.56 "Taxable Year" means the taxable year of the Company as determined
pursuant to Code Section 706.  

   1.57 "Transfer" means, when used as a noun, any voluntary sale,hypothecation,
pledge, assignment, or other transfer, and, when used as a verb, means
voluntarily to sell, hypothecate, pledge, assign or otherwise transfer.

   1.58 "Voluntary Withdrawal" means a Class A Member's disassociation with the
Company by means other than by ceasing to be a Member as a result of an
Involuntary Withdrawal.
  
   1.59 "Voting Rights" means each Class A Member's right under the Act, the
Certificate, or this Agreement to cast the number of votes on any matter subject
to a vote or to the consent of Class A Members equal to the number of Shares
owned by the Class A Member. 

   1.60 "Withdrawn Member" means any Class A Member that is the subject of a
Voluntary or Involuntary Withdrawal. 




















                                   ARTICLE II

                     ORGANIZATION OF LIMITED LIABILITY COMPANY

   2.1  Formation.  The parties hereby organize a limited liability company
pursuant to the Act and the terms of this Agreement and, for that purpose, will
cause a Certificate of Formation to be filed with the Office of the Secretary
of State of Delaware.

   2.2  Name.  The name of the Company is Plug Power, LLC  The Company may
also conduct its business under one or more assumed names duly approved by a
resolution of the Management Committee.

   2.3  Term.  The term of the Company will begin upon the acceptance of the
Certificate by the Office of the Secretary of State of Delaware and shall
continue in existence in perpetuity or until the Company shall be sooner
dissolved and its affairs wound up in accordance with the Act or this Agreement.

   2.4  Purpose.  The purpose of the Company is to plan, develop, finance,
patent, manufacture, market and distribute fuel cell systems capable of
delivering electricity or waste heat and related and ancillary services.  The
Company shall have all the powers necessary or convenient to effect any such
purpose, including all powers given to a limited liability company under the
Act.

   2.5  Initial Date.  This Agreement is made on this 27th day of June, 1997.
   
   2.6  Registered Office and Resident Agent.  The registered office and
resident agent of the Company shall be as designated in the Certificate, as it
may be amended from time to time.

   2.7  Principal Office.  The principal office of the Company shall be located
at 968 Albany - Shaker Road, Latham, New York  12110 or such other location as
determined by the Management Committee. 

   2.8  Representations, Warranties, and Covenants of Members.   

        (a) Each non-individual Member represents, warrants and covenants that:

          (i)  It is validly organized and existing and in good standing
        according to the laws of the state of its incorporation or organization,
        and it is qualified to do business in every jurisdiction where the
        failure to be so qualified would have a material adverse effect on its
        ability to perform its obligations under this Agreement;
















         (ii)  This Agreement is duly authorized, executed and delivered on
        behalf of such Member and constitutes the valid and binding obligations
        of such Member enforceable in accordance with the terms of such
        Agreement;

        (iii)  Neither the formation of the Company, the execution and delivery
        of this Agreement (including all contracts or other agreements necessary
        to carry out the purposes of this Agreement), nor the performance of the
        obligations undertaken pursuant to this Agreement will contravene any
        provision of, or constitute a default under, any indenture, mortgage,
        debenture, or other agreement of such Member, any order of any court,
        commission, or governmental agency having jurisdiction, or violate any
        law or regulation affecting or governing the Member or the business
        conducted by the Member; and 

         (iv)  It will not willfully or knowingly violate any law or regulation
        regarding the Company or its business.
        
        (b) Each individual member represents , warrants and covenants that: 

          (i)  This Agreement is the valid and binding obligation of such
        Member; 

         (ii)  Neither the entering into nor the performance of this Agreement
        will violate the terms or conditions of any agreement or order binding
        on the Member; and 

        (iii)  He or she will not violate any law or regulation regarding the
        Company or its business.  


                                   ARTICLE III

                          BACKGROUND OF THIS AGREEMENT

   3.1  Intent of this Agreement.  The parties to this Agreement have reached an
understanding concerning: (i) their business relationship with each other in
connection with the purpose of the Company; and (ii) the organization and
operation of the Company and its business.  The parties intend this Agreement
to control the business and affairs of the Company, including the Company's
governance structure, the Company's dissolution, winding up, liquidation and
termination, and the relations between the Company's Members.


















   3.2  Relationship of Agreement to Default Rules.  Whether or not this
Agreement specifically refers to a Default Rule, if any provision of this
Agreement conflicts with a Default Rule, the provision of this Agreement shall
control and the Default Rule shall be modified or overridden accordingly.   

   3.3  Advice of Counsel.  Each person signing this Agreement understands
that this Agreement contains legally binding provisions, has had the opportunity
to and has either consulted a lawyer or purposefully chosen not to consult a
lawyer.

                                   ARTICLE IV

                       CONTRIBUTIONS AND CAPITAL ACCOUNTS

   4.1  Initial Contributions.  

        (a)  The initial Members, EDC and MTI, have entered into their
   respective Contribution Agreements and made such Capital Contributions to
   the Company as required thereunder each in exchange for the number of Shares
   of Class A Membership Interest as set forth on Exhibit A; provided, however,
   MTI's Membership Interest is subject to reduction as set forth in Section
   4.7.  The fair market value of EDC's and MTI's Capital Contributions and the
   Adjusted Basis of each Capital Contribution are as set forth on Exhibit A.
   
        (b) Admission of Class A Members.  In the event that the Management
   Committee decides to admit additional Class A Members, each new Class A
   Member shall make as its Capital Contribution the contribution required by
   the Management Committee in its written offer to such Person (as required
   under Section 11.1) in exchange for the issuance of the number of Shares of
   Class A Membership Interest set forth in such offer.
   
        (c) Admission of Class B Members.  In the event that the Management
   Committee decides to admit Class B Members, each new Class B Member shall
   make as its Capital Contribution the contribution required by the Management
   Committee in its written offer to such Person (as required under Section
   11.2) in exchange for the issuance of the number of Shares of Class B
   Membership set forth in such offer.  

   4.2  Additional Capital Contributions. 

        (a) Except as provided in this Section 4.2, the Company has no right to
   require any Member to make additional capital contributions.  This section


















   does not release any Member from any obligation or promise of future
   performance that the Company has accepted as a Capital Contribution.  

        (b) EDC agrees that, subject to subsection 4.2(f), the Company may
   call upon EDC, from time to time and as required, for additional cash
   contributions from EDC in an amount not to exceed, in the aggregate,
   $4,250,000.00 (each additional EDC capital contribution is an "EDC
   Contribution"); provided, however, EDC shall not be required to make
   additional capital contributions under this subsection during the twelve
   (12) month period after the date of this Agreement. For each $1.00 of
   additional capital contributions made by EDC, EDC shall receive one (1)
   Share of Class A Membership Interest.

        (c) Upon receipt of each EDC Contribution, the Company shall notify
   MTI in writing of such contribution.  Such notice shall include the amount
   of the EDC Contribution, the date of the EDC Contribution, and the number
   of Shares of Class A Membership interest issued to EDC in exchange for the
   EDC Contribution. MTI shall have five (5) days after receipt of such notice
   to request in writing an option to purchase ("Option") additional Shares of
   Class A Membership Interest in an amount not to exceed the number of Shares
   of Class A Membership Interest issued to EDC as set forth in the notice for
   the option price set forth in the notice. Within five (5) days after receipt
   of such request, the Company shall execute and deliver to MTI an option to
   purchase Shares of Class A Membership Interest in the form attached as
   Exhibit F ("Option Agreement - Contribution Match").  MTI's written request
   for the Option shall constitute MTI's agreement to terms and conditions of
   the Option Agreement - Contribution Match.

        (d) If the Net Awarded Funds exceed $8,000,000.00, MTI shall receive
   a credit equal to 18.75% of the amount of Net Awarded Funds in excess of
   $8,000,000.00.  Such credit shall be applied toward the purchase price
   payable for any additional Shares purchased by MTI under any of the Option
   Agreements - Contribution Match delivered to MTI under subsection 4.2(c).
   If such credit is earned prior to expiration of the term of any such Option
   Agreement, MTI may request the return of any cash payments made by MTI under
   any such Option Agreement and prior to such expiration date up to the amount
   of the credit in accordance with and subject to the terms and conditions of
   any such Option Agreement.  

        (e) In the event MTI's Membership Interest is reduced pursuant to
   subsection 4.7(b), MTI shall have until October 6, 1999 to request an option
   to repurchase the Returned MTI Shares.  Within five (5) days after receipt of
   such written request, the Company shall issue to MTI an Option Agreement in
   the form attached as Exhibit G ("Option Agreement - Returned Shares").  MTI's
















   request for such option shall constitute MTI's agreement to the terms and
   conditions of the Option Agreement - Returned Shares.

        (f) The obligations of EDC to make additional capital contributions
   under this Section 4.2 shall at all times be conditioned upon the Company
   achieving the Milestones by the Milestone Dates, as such terms are defined
   in and in accordance with the schedule set forth in Exhibit C.
   
   4.3  Additional Capital Financing.

        (a)  In the event the Management Committee determines that the Company
   needs additional financing to meet its working capital or capital investment
   requirements, the Management Committee shall determine the structure and the
   pricing of the debt and/or equity offering necessary to raise such additional
   financing.  If the Management Committee cannot agree on the structure and
   pricing of such financing, such determination shall be made by a reputable,
   nationally recognized investment banking firm, experienced in structuring
   and pricing debt and/or equity offerings in similar industries, selected by
   the Management Committee.

        (b) If equity and/or debt financing is determined to be necessary
   pursuant to (a) above and the nature of such transaction is predominantly to
   raise capital in the form of cash, such equity and/or debt financing shall
   be offered first to the Class A Members as voluntary additional Capital
   Contributions.  All such calls on the Class A Members for additional Capital
   Contributions made pursuant to this Section 4.3 shall be in writing and
   shall contain the following information:

          (1)  The total amount of the additional financing to be raised by the
        Company and a description of the debt and/or equity structure and
        pricing of such financing, including, but not limited to, the number of
        Shares of Class A Membership Interest offered and the price for each
        Share so offered;

          (2)  The amount of such additional financing that the Company
        requests each Class A Member provide to the Company, including the
        amount requested from the Class A Member to whom the request is
        addressed, which amounts shall be in proportion to each Class A Members'
        ownership of Shares of Class A Membership Interest;
        
          (3)  The purpose for which the funds are to be applied set forth in
        reasonable detail; and


















          (4)  The date, not less than thirty (30) days after the written call,
        on which funding of the additional financing shall be made by the Class
        A Member, if such Class A Member elects to participate in the additional
        financing.  

   All calls for additional financing made pursuant to this Section 4.3 shall
   be voluntary and none of the Class A Members shall be obligated to
   participate in any additional financing under this Section 4.3.  In the event
   a Class A Member elects not to participate in additional financing pursuant
   to this Section 4.3, the Management Committee shall notify the remaining
   Class A Members within fifteen (15) days after the expiration of the 30-day
   period provided in Section 4.3(b)(4), and the remaining Class A Members shall
   have the option to provide such non-participating Class A Member's additional
   financing, pro rata in proportion to their ownership of Shares of Class A
   Membership Interest, within thirty (30) days after receipt of notice from the
   Management Committee.

        (c) Any such equity and/or debt financing not raised through additional
   financing from the Class A Members pursuant to Section 4.3(b) may be offered
   to Class B Members or non-Members in accordance with the structure and
   pricing determined pursuant to Section 4.3(a).

        (d) The preemptive rights of the Class A Members pursuant to Section
   4.3(b) shall not prohibit the Management Committee from issuing Shares of
   Class A Membership Interest to non-Class A Members (i) in exchange for
   services rendered in connection with any debt and/or equity financing
   pursuant to this Section 4.3, or (ii) in connection with any transaction
   the predominate purpose of which is to acquire all or any part of a Person
   or any of its business or assets, whether structured as an asset purchase
   or a purchase of stock or other equity.

   4.4  No Right to Return of Capital Contributions.  Except as otherwise
provided in this Agreement, no Member shall demand or receive a return of its
Capital Contributions or withdraw from the Company without the consent of all
Members.  No Member shall be entitled to receive interest on its Capital
Contributions.  Under any circumstance that requires a return of all or part
of any Capital Contribution, no Member shall have the right to receive any
Property other than money, except as otherwise provided in this Agreement.

   4.5  Loans and Advances by Members.

        (a) Interest Bearing Loans.  If at any time or times the Company needs
   additional funds which, for any reason, the Company does not raise through
   an increase in the Company capital or through advances, the funds may be
   borrowed from any one or more of the Members, at a rate of interest equal















   to the Applicable Federal Rate and on such payment terms as may be agreed
   upon by the lending Member(s) and the Management Committee.  These loans
   shall be evidenced by promissory notes signed on behalf of the Company.
   
        (b) Non-Interest Bearing Advances.  Any Member may advance money
   to the Company in excess of the Member's Capital Contribution.  The amount
   of the advance shall not increase the Member's Membership Interest, Capital
   Account, or Shares, but rather the amount of the advance will be a demand
   obligation of the Company to that Member and will be fully repaid, without
   interest, before distributions, or any withdrawals of capital, are made with
   respect to any Member.

   4.6  Capital Accounts.  The Company shall establish and maintain for each
Member, a Capital Account in accordance with the following provisions:

        (a) To each Member's Capital Account there shall be credited such
   Member's Capital Contributions, such Member's distributive share of Profits
   and any items in the nature of gain which are specially allocated pursuant
   to Section 5.2 or Section 5.3, and the amount of any Company Liabilities
   assumed by such Member or which are secured by any Property distributed to
   such Member;

        (b) To each Member's Capital Account there shall be debited the amount
   of cash and the Gross Asset Value of any Property distributed to such Member
   pursuant to any provision of this Agreement, such Member's distributive
   share of Losses and any items in the nature of expenses or losses which are
   specifically allocated pursuant to Section 5.2 of Section 5.3, and the amount
   of any liabilities of such Member assumed by the Company or which are secured
   by any Property contributed by such Member to the Company; and
   
        (c) In the event all or a portion of a Member's Shares are transferred
   in accordance with the terms of this Agreement, the assignee shall succeed to
   the Capital Account of the transferor to the extent it relates to the
   transferred Shares.

   The Capital Accounts shall be maintained in accordance with Section 1.704-1b
of the Regulations, and shall be interpreted and applied in a manner consistent
with such Regulations, notwithstanding any provision of this Agreement to the
contrary.  In the event the Management Committee shall determine that it is
prudent to modify the manner in which the Capital Accounts, or any debits or
credits thereto are computed in order to comply with such Regulations, the
Management Committee may make such modification, provided that it is not likely
to have a material effect on the amounts distributed to any Member pursuant to
Article XIII hereof upon the dissolution of the Company.
















   4.7  Reduction in MTI's Capital Contribution.  It is anticipated that the Net
Awarded Funds from the Contract Proposals will be Eight Million Dollars
($8,000,000.00) ("Projected Net Awarded Funds").  If the Net Awarded Funds from
the Contract Proposals are less than the Projected Net Awarded Funds, MTI's
Capital Account shall be reduced by an amount equal to $1,750,000 multiplied by
the percentage determined by dividing the difference between the Projected Net
Awarded Funds and the Net Awarded Funds by the Projected Net Awarded Funds
("Research Debit").  The number of Shares of Class A Membership Interest held
by MTI shall be reduced by one Share for each $1.00 of the Research Debit
("Returned MTI Shares").  Adjustments will be made to MTI's Capital Account and
Shares at the close of business on October 1, 1999 to reflect the Net Awarded
Funds.  If greater  than one hundred percent (100%) of the Projected Net Awarded
Funds are received by the Company, no adjustments will be made to MTI's Capital
Account or Shares except as provided in subsection 4.2(d).

   4.8  Requested Registration.  At any time following five (5) years after the
date of this Agreement, upon the request of Class A Members holding not less
than twenty-five (25%) of the Shares of Class A Membership Interest entitled to
vote ("Initiating Members"), the Company shall retain an independent reputable
and nationally recognized investment banking firm ("Advisor") experienced in
advising on the registration of Shares of businesses similar to the Company and
acceptable to the Company and the Initiating Member, to propose to the Company
the optimal time to effect registration of the Shares held by the Company and
the offering price for such Company Shares. The Advisor shall make such proposal
in a writing ("Proposal") delivered to the Company within sixty (60) days after
the Advisor is retained by the Company.  The Company shall provide the Class A
Members with copies of the Advisor's Proposal within thirty (30) days after
receipt of the Proposal.  If the Advisor's Proposal recommends pursuing
registration at that time, the Initiating Members may require the Company to
effect registration of the Company Shares in accordance with the Advisor's
Proposal.  If necessary in order to effect registration of the Company Shares
in accordance with the Advisor's Proposal, the Members authorize the Company to
increase the number of Shares Authorized to an amount sufficient to effect the
registration, and authorize the Company to merge the Company into a Delaware
corporation and exchange their Shares in the Company for an equal number of
Shares in the surviving Delaware corporation.

   In the event the advisor's proposal recommends against effecting registration
at that time, the Company shall not be obligated to pursue such registration,
and the Member shall not be entitled request the Company to retain an advisor
again for the purpose set forth above for a period of twelve (12) months after
the date of the advisor's proposal recommending against effecting a registration
at that time.

















                                   ARTICLE V 

                        ALLOCATIONS AND DISTRIBUTIONS

   5.1  Allocations of Profits and Losses from Operations.  

        (a) Profits.  After giving effect to the special allocations in Sections
   5.2 and 5.3, Profits shall be allocated among the Members in proportion to
   the number of Shares owned by each Member and the number of Shares Issued.

        (b) Losses.  After giving effect to the special allocations in Sections
   5.2 and 5.3, Losses shall be allocated among the Members in proportion to the
   number of Shares owned by each Member and the number of Shares Issued.
   
   5.2  Special Allocations.  The following special allocations shall be made in
the following order: 

        (a) Minimum Gain Chargeback.  To the extent and in the manner provided
   in Section 1.704-2(f) of the Regulations, if there is a net decrease in
   Company Minimum Gain during any Taxable Year, each Member shall be specially
   allocated items of Company income and gain for such fiscal year (and, if
   necessary, subsequent fiscal years) in an amount equal to such Member's share
   of the net decrease in Company Minimum Gain, determined in accordance with
   Section 1.704-2(g) of the Regulations.  Allocations pursuant to the previous
   sentence shall be made in proportion to the respective amounts required to be
   allocated to each Member pursuant thereto.  This Section 5.2(a) is intended
   to comply with the minimum gain chargeback requirement in Section 1.704-2(f)
   of the Regulations and shall be interpreted consistently therewith.


        (b) Member Minimum Gain Chargeback.  To the extent and in the manner
   provided in Section 1.704-2(i)(4) of the Regulations, if there is a net
   decrease in Member Minimum Gain attributable to a Member Nonrecourse
   Liability during any fiscal year, each Member who has a share of the Member
   Minimum Gain attributable to such Member Nonrecourse Liability shall be
   specially allocated items of Company income and gain for such fiscal year
   (and, if necessary, subsequent fiscal years) in an amount equal to such
   Member's share of the net decrease in Member Minimum Gain attributable to
   such Member Nonrecourse Liability, determined in accordance with Regulations
   Section 1.704-2(i)(4).  Allocations pursuant to the previous sentence shall
   be made in proportion to the respective amounts required to be allocated to
   each Member pursuant thereto.  The items to be so allocated shall be
   determined in accordance with Sections 1.704-2(i)(4) an 1.704-2(j)(2) of the
   Regulations.  This Section 5.2(b) is intended to comply with the minimum gain
   chargeback requirement in Section 1.704-2(i)(4) of the Regulations and shall
   be interpreted consistently therewith.














        (c) Qualified Income Offset.  In the event any Member unexpectedly
   receives any adjustments, allocations, or distributions described in Treasury
   Regulation Sections 1.704(b)(2)(ii)(d)(4), 1.704-1(b)(2)(ii)(d)(5), or 1.704-
   1(b)(2)(ii)(d)(6), items of Company income and gain shall be specifically
   allocated to each such Member in an amount and manner sufficient to
   eliminate, to the extent required by the Treasury Regulations, the Adjusted
   Capital Account Deficit of such Member as quickly as possible, provided that
   an allocation pursuant to this Section 5.2(c) shall be made only if and to
   the extent that such Member would have an Adjusted Capital Account Deficit
   after all other allocations provided for in this Section 5 have been
   tentatively made as if this Section 5.2(c) were not in this Agreement.

        (d) Gross Income Allocation.  In the event any Member has an Adjusted
   Capital Account Deficit at the end of any fiscal year, each such Member shall
   be specially allocated items of Company income and gain in the amount of such
   excess as quickly as possible, provided that an allocation pursuant to this
   Section 5.2(d) shall be made only if and to the extent that such Member would
   have Adjusted Capital Account Deficit after all other allocations provided
   for in this Section 5 have been made as if Section 5.2(c) and this Section
   5.2(d) were not in the Agreement.

        (e) Nonrecourse Deductions.  Nonrecourse Deductions shall be allocated
   among the Members in proportion to the number of Shares owned by each Member
   to the number of Shares Issued.
   
        (f) Member Nonrecourse Deductions.  Any Member Nonrecourse Deductions
   for any fiscal year shall be specially allocated to the Member who bears the
   economic risk of loss with respect to the Member Nonrecourse Liability to
   which such Nonrecourse Deductions are attributable in accordance with
   Regulations Section 1.704-2(i)(1).
   
        (g) Section 754 Adjustments.  If an adjustment to the Adjusted Basis of
   any Company Property pursuant to Code Section 734(b) or Code Section 743(b)
   is required, pursuant to Regulations Section 1.704-1(b)(2)(iv)(m)(2) or
   Regulations Section 1.704-1(b)(2)(iv)(m)(4), to be taken into account in
   determining Capital Accounts as the result of a distribution to a Member in
   complete liquidation of his or her Membership Interest in the Company, the
   amount of such adjustment shall be treated as an item of gain or loss and
   shall be specially allocated to the Members in proportion to the number of
   Shares owned by each Member and the number of Shares Interest in the event
   that Regulations Section 1.704-1(b)(2)(iv)(m)(2) applies, or to the Member
   to whom such distribution was made in the event that Regulations Section
   1.704-1(b)(2)(iv)(m)(4) applies.

   5.3  Curative Allocations.  The allocations set forth in Sections 5.2(a)-5.2
(g) hereof (the "Regulatory Allocations") are intended to comply with certain
requirements of the Regulations.  It is the intent of the Members that, to the













extent possible, all Regulatory Allocations shall be offset either with other
Regulatory Allocations or with special allocations of other items of Profits or
Losses pursuant to this Section 5.3.  Therefore, notwithstanding any other
provision of this Section 5 (other than the Regulatory Allocations), the
Management Committee shall make such offsetting special allocations of items of
Profit or Loss in whatever manner it determine(s) appropriate so that, after
such offsetting allocations are made, each Member's Capital Account balances,
to the extent possible, are equal to the Capital Account balance such Member
would have had if the Regulatory Allocations were not part of the Agreement
and all items of Profit and Loss were allocated pursuant to Section 5.1.

   5.4  Tax Allocations:  Code Section 704(c).  In accordance with Code Section
704(c) and the Regulations thereunder, Profits and Losses which relate to any
Property contributed by a Member to the Company shall, solely for tax purposes,
be allocated among Members so as to take account of any variation between the
Property's Adjusted Basis and its initial Gross Asset Value.


                                   ARTICLE VI

                                 DISTRIBUTIONS

   6.1  Distributions of Net Operating Income.  Subject to the limitations of
Section 6.3 and the Act, the Management Committee shall distribute (within
seventy-five (75) days after the end of each fiscal year of the Company) to the
Members in proportion to the number of Shares owned by each Member and the
number of Shares Issued, the lesser of (a) Net Operating Income for the
preceding fiscal year of the Company, or (b) an amount equal to the total
expected federal and Michigan income tax liability (determined at the highest
individual federal and Michigan marginal income tax rates) of all Members on
account of their Membership Interest in the Company during the preceding fiscal
year.  If the Net Operating Income for the preceding fiscal year of the Company
exceeds the required distribution amount under this Section 6.1, then, in the
sole discretion of the Management Committee and subject to the limitations of
Section 6.3 and the Act,the Management Committee may make additional
distributions of Net Operating Income to the Members in proportion to the number
of Shares owned by each Member to the number of Shares Issued.  

   6.2  Amounts Withheld. All amounts required to be withheld pursuant to the
Code or any provision of any state or local tax law with respect to any payment,
distribution, or allocation to the Members, shall be treated as amounts
distributed to the Members pursuant to this Article VI.  The Management
Committee is authorized to withhold from distributions, or with respect to
allocations, to the Members and to pay over to any federal, state or local
government any amounts required to be so withheld pursuant to the Code or any
provision of any other federal, state, or local law. 














   6.3  Limitation on Distributions.  No Member shall be entitled to a
distribution pursuant to this Article VI, if, after giving effect to the
distribution, the Company would not be able to pay its debts as they become
due in the usual course of business, or if the Company's total assets would be
less than the sum of its total liabilities.  A determination that a
distribution is not prohibited under this subsection or the Act may be based
either on financial statements prepared on the basis of accounting practices
and principles that are reasonable under the circumstances or on a fair
valuation or other method that is reasonable under the circumstances.  Unless
otherwise agreed by the Members, a Member shall only be entitled to the
distributions provided in this Agreement.


                                   ARTICLE VII

                  POWERS, DUTIES, LIABILITIES, REIMBURSEMENT
                     AND DECISIONS OF MANAGEMENT COMMITTEE

   7.1  Management of Business. 

        (a)  The Company shall be managed by a Management Committee.  Except
   as provided in subsection 7.1(b), the Management Committee shall be comprised
   of six Managers, three (3) Managers appointed by EDC and three (3) Managers
   appointed by MTI.   

        (b) In the event the number of Shares of Class A Membership Interest
   held by EDC is greater than (i) the number of Shares of Class A Membership
   Interest held by MTI and the MTI Affiliates, in the aggregate, plus (ii) the
   number of Shares of Class A Membership Interest for which MTI and the MTI
   Affiliates, in the aggregate, hold unexpired options to purchase pursuant to
   Section 4.2(c) or (e) ("Option Shares"), EDC shall be entitled to appoint two
   (2) additional Managers to the Management Committee.  Thereafter, the
   Management Committee shall be comprised of eight (8) Managers, five (5)
   Managers appointed by EDC and three (3) Managers appointed by MTI.  If the
   number of Shares and Option Shares of Class A Membership Interest held by
   MTI and the MTI Affiliates, in the aggregate, subsequently become equal to
   the number of Shares of Class A Membership Interest held by EDC, EDC shall
   cause two (2) of the Managers appointed by EDC to resign or be removed, and
   thereafter the Management Committee shall be comprised of six (6) Managers,
   three (3) appointed by EDC and three (3) appointed by MTI.

        (c) The Managers shall serve for a term of three (3) years, unless a
   Manager is sooner removed or resigns pursuant to either this Section 7.1 or
   Section 7.9. The duties, compensation and benefits, if any, of the Managers
   shall be determined by reference to the provisions of this Agreement, the
   Act, and, if applicable, resolutions adopted by the Management Committee.
   
    7.2  Authority of Management Committee.  












        (a) Subject to the limitations imposed by the Act and this Agreement,
   the Management Committee shall have full and exclusive authority to conduct,
   manage and control all of the business affairs of the Company and to make
   all decisions regarding the business of the Company.  In furtherance of such
   authority, the Management Committee shall have all of the rights and powers
   provided in this Section 7.2, as amended from time to time, and, except as
   otherwise provided by law or this Agreement, any action taken by the
   Management Committee shall constitute the act of and serve to bind the
   Company.

        (b) The Management Committee is hereby granted the exclusive right,
   power and authority to:

          (1)  Manage, operate, maintain and develop the business of the
        Company; 

          (2)  Approve any loan agreements or instruments evidencing debt
        incurred by the Company; the selection of a bank in which Company funds
        shall be deposited; the selection of legal counsel; the approval of
        Company tax returns; and any other matters which the Management
        Committee shall deem to be of fundamental importance to the Company;
        
          (3)  Execute any and all agreements, contracts, documents,
        certifications, instruments, notes, mortgages, assignments and security
        agreements necessary or convenient in connection with the operation of
        the business of the Company;
        
          (4)  Borrow money and issue evidences of indebtedness in furtherance
        of any or all of the purposes of the Company, and to secure the same by
        mortgage, pledge or other lien on any Company Property;
        
          (5)  Protect and preserve the title and interest of the Company with
        respect to the assets at any time owned or acquired by the Company;
        
          (6)  Collect all amounts due to the Company, and otherwise to
        enforce all rights of the Company, including all of such rights inuring
        to the benefit of the Company under any agreement for the management of
        its assets, and, in that connection, to retain counsel and institute
        such suits or proceedings, in the name and on behalf of the Company, or,
        if the Management Committee shall so determine, in the name of the
        Members; provided, however, that the Members reserve the right to retain
        separate counsel to defend against any lawsuits which name the Members
        as separate parties to such proceedings;


          (7)  Enter into contracts with and pay fees or cause others to pay
        fees to any person or entity;













          (8)  Enter into agreements for the performance of legal, accounting,
        bookkeeping, tax, administrative reporting, receiving and paying of
        funds and other management services necessary or appropriate for the
        administration of the Company with any Person;
        
          (9)  Defend and hold harmless any Members against any claim in
        connection with the Company business other than a claim by another
        Member for breach of an obligation under this Agreement;

         (10)  Designate and appoint one or more employees of or agents for
        the Company who shall have such authority as may be conferred upon
        them by the Management Committee, and who may perform any of the duties
        and exercise any of the powers and authority conferred upon the
        Management Committee hereunder, including, without being limited to,
        the designation of an agent for service of process on the Company and
        one or more agents as authorized signatories on any bank accounts
        maintained by the Company;

         (11)  Invest and reinvest Company funds to the extent not currently
        required, in its sole discretion, for Company operating capital;
        
         (12)  To the extent that funds of the Company are available and the
        Management Committee deems it appropriate, make distribution to the
        Members in accordance with the provisions of this Agreement;
        
         (13)  Perform all normal business functions, and otherwise operate
        and manage the business and affairs of the Company, in accordance with
        this Agreement;
        
         (14)  Engage in any kind of activity and perform and carry out
        contracts of any kind necessary to, or in connection with or convenient
        or incidental to, the accomplishment of the purposes of the Company, so
        long as said activities and contracts may be lawfully carried on or
        performed by a limited liability company under the laws of the State of
        Delaware;

         (15)  Offer Shares that are Shares Authorized but unissued for sale
        for not less than fair market value to Persons that are identified by
        the Management Committee as prospective Members or as Key Employees, to
        enter into capital contribution agreements with such Persons in the
        name of and on behalf of the Company, to admit such Persons as Members
        upon receipt of the agreed upon capital contribution and to amend
        Exhibit A or B as applicable, to reflect the admission of such Persons
        as Members and the issuance of Shares to such Persons; and
        
         (16) Request additional capital contributions consistent with Section
        4.2.













   7.3  Limitations on Management Committee and Managers.  Notwithstanding the
foregoing and any other provision contained in this Limited Liability Company
Agreement to the contrary, no act shall be taken, sum expended, decision made,
obligation incurred or power exercised by the Management Committee or any
Manager on behalf of the Company, unless approved by the Class A Members holding
at least seventy percent (70%) of the Shares of Class A Membership Interest
entitled to vote with respect to those decisions set forth below:

        (a) Any sale, lease, assignment, transfer, or other conveyance of all or
   substantially all of the assets of the Company or any merger,consolidation,
   dissolution, divestiture or winding-up of the Company;
     
        (b) Any amendment or restatement of the Certificate or this Limited
   Liability Company Agreement; 

        (c) Any material change in the character of the business and affairs of
   the Company; 
 
        (d) Any change in the number of Shares Authorized for a Class A
   Membership Interest;

        (e) The commission of any act which would make it impossible for the
   Company to carry on its ordinary business and affairs; 

        (f) The commission of any act that would contravene any provision of the
   Certificate or this Limited Liability Company Agreement or the Act; or
     
        (g) The approval of any Contract Proposal.

   7.4  Compensation; Expenses.

        (a) Except as otherwise provided in this Section 7.4, no Manager shall
   receive any salary, fee, or draw for services rendered to or on behalf of the
   Company, nor shall any Manager be reimbursed for any expenses incurred by
   such Manager on behalf of the Company.
   
        (b) Each Manager may charge the Company, and  shall be reimbursed,
   for any reasonable direct expenses incurred in connection with the Company's
   business and in compliance with any procedures and requirements of the
   Company relating to such reimbursement.

   7.5  Manager Duties.  

        (a) Except as provided in subsection 7.5(b)  and Section 7.6, each
   Manager shall devote such time to the Company business as may be necessary















   to adequately and properly manage and supervise the Company business and
   affairs in an efficient and workmanlike manner and discharge his or her
   duties as a Manager in good faith, with the care an ordinarily prudent
   person would exercise in similar circumstances, and in a manner he or she
   believes to be in the best interest of the Company.  Notwithstanding the
   foregoing, the failure of any Manager appointed by EDC to approve a Contract
   Proposal pursuant to Section 7.3(g) shall not constitute a breach of any duty
   imposed upon such Manager under this Agreement or the Act, and MTI and its
   affiliates are forever barred from bringing, and hereby waive any right to
   bring, any action or suit against such Manager for failure to approve a
   Contract Proposal.

        (b) Nothing in this Agreement shall be deemed to restrict in any way the
   rights of a Manager, or of any Affiliate of a Manager, to conduct any other
   business or activity whatsoever, and no Manager shall be accountable to the
   Company or to any Member with respect to that business or activity even if
   the business or activity competes with the Company's business.  The
   organization of the Company shall be without prejudice to their respective
   rights (or the rights of their respective Affiliates) to maintain, expand,
   or diversify such other interests and activities and to receive and enjoy
   profits or compensation therefrom.

        (c) (1)  Each Manager shall deal in confidence with all matters
   involving the Company until such time as there has been a general public
   disclosure. Subject to subsection 7.5(c)(2), no Manager shall disclose or
   use any Confidential Information, Inventions or Confidential Documents of
   the Company (as such terms are defined below) except for the direct or
   indirect benefit of the Company.

            (2)  In the event a Manager receives a discovery request (including,
   without limitation, document requests, subpoenas, notices of deposition,
   orders to produce documents, information or individuals) in a judicial action
   or an arbitration (referred to hereinafter as "Discovery Requests"), each
   Manager agrees that:
     
                 (A)  The Manager will notify the Company of the Manager's
            receipt of the Discovery Request within a reasonable time following
            such receipt to allow the Company to seek an order preventing or
            limiting the disclosure by the Manager of the Confidential
            Information from a tribunal having jurisdiction over the Discovery
            Request.

                 (B)  The Manager will not take any action, including responding
            to the Discovery Requests before the response time, that would
            interfere with any efforts by the Company to pursue such legal
            remedies preventing or limiting disclosure of the Confidential
            Information.

                      (i)  In the event of a Discovery Request other than a
                 deposition request, this means that the Manager will not










                 respond until the date set forth in the Discovery Request,
                 thus giving the Company full opportunity to obtain an order
                 modifying the Manager's obligation to respond or to obtain
                 an agreement from the party making the Discovery Request that
                 the Manager is not obligated to respond at that time.

                     (ii) In the event of a deposition in which a question
                 is posed requiring the disclosure of Confidential Information,
                 this means that the Manager will not disclose the Confidential
                 Information as long as the Company immediately requests an
                 adjournment of the deposition in order to obtain direction
                 from a tribunal having jurisdiction over the Discovery Request
                 as to whether and under what circumstances the Manager can
                 disclose the Confidential Information.  If the parties to the
                 action in which the deposition is taken do not permit the
                 Company to attend the deposition of the Manager, and a
                 question requiring the disclosure of Confidential Information
                 is asked, the Manager agrees that prior to disclosing the
                 Confidential Information it will request an adjournment of the
                 deposition in order to inform the Company of the question and
                 to give the Company an opportunity to seek direction from
                 such a tribunal.

                 (C)  To the extent the Company fails to request or is unable
            to obtain an order from a tribunal having jurisdiction over the
            Discovery Request, nothing shall prevent the Manager from
            responding to a Discovery Request in the manner it considers
            appropriate.

            (3)  Each Manager acknowledges the disclosure of Confidential
   Information by the Managers or a breach of the provisions contained in this
   subsection 7.5(c) will give rise to irreparable injury to the Company or to
   the Company's clients and customers, which injury could not be adequately
   compensated for in damages.  Accordingly, the Company or such other party
   may seek and obtain injunctive relief against the breach or threatened breach
   of the Manager's agreements and undertakings contained in this subsection
   7.5(c), in addition to any other legal remedies which may be available to the
   Company or such other party.
                                 
             (4)  For purposes of this subsection 7.5(c),the terms defined below
   shall have the following meanings:

                 (A)  "Confidential Documents" shall mean any papers,
             blueprints, records, notebooks, computer disks, computer tapes, or
             other similar repositories containing Confidential Information,















             including copies thereof which have been prepared for the benefit
             of the Company or its employees or independent contractors, whether
             prepared by, its employees, independent contractors, or outside
             parties.

                 (B)  "Confidential Information" shall mean information or
             knowledge not readily ascertainable by the general public or the
             industry in which the Company is or may become engaged regarding
             the Company's products, systems, processes,  Inventions, designs,
             research, development, manufacture, purchasing, accounting,
             engineering, marketing, client or customer lists and information,
             merchandising and selling, and Confidential Documents.

                 (C)  "Inventions" shall mean discoveries, concepts, and ideas,
             whether patentable or not, including but not limited to the design,
             specification and technology of systems, processes, methods,
             formulas, and techniques, as well as improvements or modifications
             of processes, systems, methods, formulas and techniques which are
             not readily ascertainable by the general public or the industry in
             which the Company is or may become engaged.

        (d) When a Manager, directly or indirectly, has a financial or personal
   interest in a contract or transaction to which the Company is to be a party,
   the Manager is considered to be "interested" in the matter.  An interested
   Manager shall disclose that interest and describe to the Management Committee
   all material facts concerning the matter with complete accuracy and
   inclusiveness.  Provided such full and accurate disclosure is made, the
   interested Manager shall be allowed to discuss and vote on the matter and any
   such contract or transaction authorized by the Management Committee shall not
   be later subject to revocation on the basis that the terms of such contract
   or transactions were not fair and commercially reasonable.

   7.6  Additional Duties and Obligations of Management Committee

        (a) The Management Committee shall take all actions which may be
   necessary or appropriate for the continuation of the Company's valid
   existence as a limited liability company under the laws of the State of
   Delaware.

        (b) The Management Committee shall use its best efforts to meet all
   current and future federal income tax requirements to assure that the
   Company will not fail to be classified for federal income tax purposes as a
   partnership rather than as an association taxable as a corporation.

        (c) The Management Committee shall direct the affairs of the Company
   in the best interest of the Company, including the safekeeping and use of
   all Company funds and assets and the use thereof for the benefit of the
   Company.












        (d) The Management Committee shall, from time to time, prepare and file
   any amendment to the Company's Certificate and any other similar documents
   which are required by law to be filed and recorded for any reason in such
   office or offices as are required under the laws of the State of Delaware.
    
   7.7  Management Committee Meetings and Decisions.  

        (a) A meeting of the Management Committee shall be held every month,
   on the 15th day of each month or on such other day of the month as
   determined by the Management Committee.

        (b) All decisions made by the Management Committee shall require a vote
   of not less than fifty-one percent (51%) of all of the Managers. All actions
   shall be taken only at a meeting called at least five (5) days in advance of
   the meeting attended by not less than fifty-one percent (51%) of all of the
   Managers.

        (c) Actions of the Management Committee may also be taken by written
   consent of all of the Managers.

        (d) A Manager may participate in a meeting with the same effect as being
   present in person by a conference telephone or by other similar
   communications equipment through which all persons participating in the
   meeting may communicate with the other participants.

   7.8  Removal or Resignation of Manager.

        (a) The Class A Members, by a vote of at least seventy percent (70%),
   may remove a Manager for cause.  For purposes of this Agreement, "cause"
   shall mean the Manager's gross negligence, willful misconduct, or bad faith
   in the performance of the material duties and obligations of the Manager
   under this Agreement, or the knowing violation of statutory obligations or
   fraud by the Manager.  

        (b) A Manager may be removed only at a meeting called by the Class A
   Members in accordance with the procedures required under Article VIII.
   Notice of the meeting shall be given to all Class A Members and the Manager.
   Further, the notice shall include notice of the specific allegations against
   the Manager which form the basis for the proposed removal.  At the meeting
   called for the removal of the Manager, the Manager shall be given a full
   opportunity to be heard and to address the specific allegations against the
   Manager.

        (c) A Manager may be removed at any time, with or without cause, by
   the Class A Member that appointed the Manager under Section 7.1.  The Class
   A Member taking such action shall provide prompt written notice of such
   action to all other Class A Members.  













        (d) Except as provided under Section 7.9(a) or 7.9(c), a Manager may not
   be removed. 

        (e) A Manager may resign by providing written notice to all Class A
   Members not less than forty-five (45) days prior to the effective date of
   such resignation.  The resignation shall take effect forty-five (45) days
   after the date the Manager gives notice to all Class A Members, or at such
   later date stated in the notice of resignation. 

   7.9  Replacement Manager.  A replacement Manager for any Manager that has
been removed or has resigned shall be appointed by the Class A Member that had
appointed the removed or resigning Manager within ten (10) business days of the
date of removal or the effective date of resignation.  The Class A Member
appointing the replacement Manager shall provide prompt written notice to all
other Class A Members of the name and address of the replacement Manager.
Once appointed, the replacement Manager will serve the unexpired term of and
will have all of the powers and duties of the Manager that resigned or was
removed.

   7.10 Officers of the Company.

        (a) Power to Elect Officers.  The Management Committee shall select a
   president, treasurer, and a secretary, and may select a chairman, one or more
   vice presidents, one or more assistant treasurers, and one or more assistant
   secretaries, and any other officers that the Management Committee deems in
   the best interest of the Company which may be appointed and their duties
   prescribed by resolution of the Management Committee. 

        (b) Removal of Officers and Agents.  Any officer or agent may be
   removed by the Management Committee whenever, in the judgment of the
   Management Committee, the business interests of the Company will be served
   thereby. 

        (c) Delegation of Powers.  For any reason deemed sufficient by the
   Management Committee, whether occasioned by absence or otherwise, the
   Management Committee may delegate all or any of the powers and duties of any
   officer to any other officer or Manager.  

        (d) Powers and Duties of Officers.  

            (1)  Chairman.  The Chairman shall be selected by and from the
        membership of the Management Committee.  He or she shall conduct all
        meetings of the Management Committee and shall perform all duties
        incident thereto. 
















            (2)  President. The President shall have general and active
        management of the business of the Company and shall see that all orders
        and resolutions of the Management Committee are carried into effect.  He
        or she shall be ex-officio, a member of all standing committees, and
        shall have the general powers and duties of supervision and management
        usually vested in the office of president of a corporation.  During the
        prolonged absence or disability of the President, or the vacancy of his
        or her office, the below listed individuals shall perform the duties and
        exercise the power of President, until a successor is appointed, as
        follows:  Vice President, and if he or she be not available, then
        whosoever shall be appointed by the Management Committee. 

            (3)  Vice President.  The duties which the Vice Presidents are to
        perform shall be designated by the Management Committee. 

            (4)  Secretary.  The Secretary shall attend all meetings of the
        Members and shall preserve in the books of the Company true minutes of
        the proceedings of all such meetings.  He or shall safely keep in his or
        her custody the seal of the Corporation, and shall have authority to
        affix the same to all instruments where its use is required.  He or she
        shall give all notices required by statute, by-law or resolution.  He or
        she shall perform such other duties as may be delegated to him or her
        by the Management Committee. 

            (5)  Treasurer.  The Treasurer shall have custody of all Company
        funds and securities, and shall keep in books belonging to the Company
        full and accurate accounts of all receipts and disbursements; he or she
        shall deposit all monies, securities and other valuable effects in the
        name of the Company in such depositories as may be designated for that
        purpose by the Management Committee.  He or she shall disburse the funds
        of the Company as may be ordered by the Management Committee, taking
        proper vouchers for such disbursements and shall render to the President
        and directors at regular meetings of the Management Committee, and
        whenever requested by them, an account of all his or her transactions as
        Treasurer, and of the financial condition of the Management Committee.
        If required by the Management Committee, he or she shall deliver to the
        President of the Company, an shall keep in force, a bond in form,
        amount, and with a surety or sureties satisfactory to the Management
        Committee, conditioned for faithful performance of the duties of his or
        her office, and for restoration to the Company in case of his or her
        death, resignation, retirement or removal from office, of all books,
        papers, vouchers, money and property of whatever kind in his or her
        possession or under his or her control belonging to the Company.

















            (6)  Assistant Secretary and Assistant Treasurer.  The Assistant
        Secretary, in the absence or disability of the Secretary, shall perform
        the duties and exercise the powers of the Secretary.  The Assistant
        Treasurer, in the absence or disability of the Treasurer, shall perform
        the duties and exercise the powers of the Treasurer. 

        (e) Each officer of the Company shall discharge his or her duties as an
   officer in good faith, with the care an ordinarily prudent person in a like
   position would exercise in similar circumstances and in a manner he or she
   reasonably believes to be in the best interests of the Company.  In
   discharging his or her duties, an officer is entitled to rely in good faith
   upon the records of the Company and such information, opinions, reports or
   statements provided to any such officer by any other person as to matters
   the officer reasonably believes are within such other person's professional
   or expert competence and who has been selected with reasonable care by or
   on behalf of the Company.

   7.11 No Authority of Members.  No Member is an agent of the Company or has
the authority to make any contracts, enter into any transactions, or make any
commitments on behalf of the Company, except that, prior to the first meeting
of the Management Committee, either Member may execute any agreement, document
or instrument required to be executed by the Company under this Agreement, the
EDC Contribution Agreement or the MTI Contribution Agreement.  

     7.12 Actions Against Members for Breach of Contract.  In the event that
any Manager or Officer of the Company brings to the attention of the Management
Committee any allegation of a breach of a contract between a Member and the
Company, the Management Committee shall evaluate the validity of the allegations
and vote on whether or not to take action against the subject Member.  No
Manager appointed by the subject Member shall be entitled to vote on any
resolution to pursue any claim or take any action against the subject Member.
The vote taken at the meeting shall be preliminary and subject to the obligation
of the Management Committee to provide the Company's independent public
accountants with a written report of their evaluation and assessment of the
allegation of a breach by the subject Member of a contract with the Company.
Such report shall be delivered by the Management Committee to such accountants
within five (5) business days of such meeting.  The Company's independent public
accountants shall provide the Management Committee with a written report
expressing their views and opinions with respect to the Management Committee's
evaluation and assessment.  Such report shall be provided to the Management
Committee within ten (10) business days following such accountants' receipt of
the Management Committee's written report and for the purpose of reviewing the
Company's independent public accountant's written report.  The Management
Committee shall then convene a meeting for the specific purpose of determining
what action to take with regard to the alleged breach of contract between the
subject Member and the Company.  At such meeting, no Manager appointed by the
subject Member shall be entitled to vote on any resolution regarding whether or
not to pursue a claim or other action against the subject Member.












                                    ARTICLE VIII

                      ACTION OF MEMBERS AND MEMBER MEETINGS

   8.1  Action of Members.  Except to the extent that the Act, the Certificate,
or this Agreement require otherwise, all actions of the Class A Members shall
be taken either (a) by a majority vote of the votes entitled to be cast by all
of the Class A Members at a properly called meeting of the Class A Members,
when a quorum is present; or (b) by written action without a meeting, complying
with Section 8.8.

   8.2  Tri-Annual and Special Meetings.

        (a) A tri-annual meeting of the Class A Members shall be held every
   third year, on the third Tuesday of January of such year, for the appointment
   of Managers to the Management Committee.

        (b) A special meeting of the Class A Members may be called for any
   purpose or purposes at any time by the Management Committee or by one or more
   Class A Members having at least fifty-one percent (51%) of all of the votes
   entitled to be cast by Class A Members.  

        (c) For any special meeting not called by the Management Committee, the
   Class A Member or Class A Members who are calling the special meeting must
   give written notice to the Management Committee specifying the purpose of the
   meeting. Within thirty (30) days after the Management Committee receives a
   demand under this paragraph, the Management Committee shall call a special
   meeting of the Class A Members.  If the Management Committee fails to call
   the special meeting, the Class A Member or Class A Members calling the
   meeting may, at the expense of the Company, call the meeting by giving the
   notice described in Section 8.3.
      
   8.3  Notice of Meetings.  Written notice of each meeting of the Class A
Members, stating the date, time, place, and the purposes or purposes, must be
given to every Class A Member at least ten (10) days and not more than sixty
(60) days prior to the meeting. The business transacted at any meeting of
Class A Members is limited to the purposes stated in the notice of the meeting.

   8.4  Location and Conduct of the Meetings; Adjournments.

        (a) The location of each of the meetings of the Class A Members will
   alternate each meeting between 2000 Second Avenue, 644 WCB, Detroit, Michigan
   and 968 Albany - Shaker Road, Latham, New York, with the first meeting being
   held at the Detroit, Michigan location, or at some other suitable location
   within the same city, as designated by the Management Committee or the Class
   A Member or Class A Members calling the meeting, as applicable.  














        (b) A Manager designated by the Management Committee shall preside
   at each meeting of the Class A Members.

        (c) At each tri-annual and special meeting of the Members, the
   Management Committee shall designate a Manager to act as secretary at the
   meeting, who shall record the discussions had and actions taken at such
   meeting and prepare minutes summarizing such discussions and actions.  A
   copy of such minutes, certified by the secretary, shall be maintained at
   the Company's principal place of business with the records of the Company,
   and a copy shall be sent to each of the Members within thirty (30) days
   after the date of such meeting.

        (d) The Management Committee shall have the power and authority to
   establish the rules of order to be followed at the tri-annual and special
   meetings of the Members.

        (e) Any meeting of the Class A Members may be adjourned from time to
   time to another date and time and, subject to Section 8.4(a), to another
   place.  If at the time of adjournment, the person presiding over the meeting
   announces the date, time, and place at which the meeting will be reconvened,
   no further notice of the reconvened meeting shall be required.

   8.5  Waiver of Notice.

        (a) A Class A Member may waive notice of the date, time, place, and
   purpose or purposes of a meeting of Class A Members.  A waiver may be made
   before, at, or after the meeting, in writing, orally, or by attendance.
   
        (b) Attendance by a Class A Member at a meeting is a waiver of notice
   of that meeting, unless the Class A Member objects at the beginning of the
   meeting to the meeting or the transaction of business at the meeting because
   the meeting is not properly called or convened, or objects before a vote on
   an item of business because the item may not properly be considered at that
   meeting and does not participate in the consideration of the item at that
   meeting.

   8.6  Proxies.

        (a) A Class A Member may cast or authorize the casting of a vote by
   filing a written appointment of a revocable proxy given to any other Class
   A Member with the Management Committee at or before the meeting at which the
   appointment is to be effective. The Class A Member may sign or authorize the
   written appointment by telegram, telecopy, cablegram, or other means of
   electronic transmission stating, or submitted with information sufficient to
   determine, that the Class A Member authorized the transmission.  Any copy,
   facsimile, telecommunication, or other reproduction of the original of either














   the writing or the transmission may be used in lieu of the original, if it is
   a complete and legible reproduction of the entire original.

        (b) A Class A Member may not grant or appoint an irrevocable proxy.
        
   8.7  Quorum.  For any meeting of the Class A Members, a quorum consists of
Class A Members holding a majority of all of the votes entitled to be cast at
a meeting of the Class A Members.  If a quorum is present when a properly
called meeting is convened, the Class A Members present may continue to
transact business until adjournment, even though the departure of Class A
Members originally present leaves less than the number of Class A Members
otherwise required for a quorum.

   8.8  Action Without a Meeting.  Any action required or permitted to be taken
at a meeting of the Class A Members may be taken without a meeting by written
consent signed by all of the Class A Members who are entitled to vote at a
meeting of the Class A Members.  The action taken by unanimous written consent
shall be effective when signed by all Class A Members entitled to vote, unless
a different effective date is provided in the written consent.  

   8.9  Attendance by Conference Telephone.  A Class A Member may participate
in a meeting with the same effect as being present in person by a conference
telephone or by other similar communications equipment through which all persons
participating in the meeting may communicate with the other participants. 


                                   ARTICLE IX     

                       MEMBERSHIP OBLIGATIONS AND CONDUCT

   9.1  Compliance with Policies.  It shall be the duty of each Member to act
at all times consistently with and in compliance with all and each of the
provisions of this Agreement and with all policies, rules, and decisions of the
Company adopted in accordance with any of the provisions of this Agreement.

   9.2  Authority to Bind. Only the Manager and agents of the Company authorized
by the Management Committee shall have the authority to bind the Company.  No
Member who is not authorized as an agent of the Company by the Management
Committee shall take any action to bind the Company, and each Member shall
indemnify the Company for any costs or damages incurred by the Company as a
result of any such unauthorized action by such Member.  Provided, however, that,
prior to the first meeting of the Management Committee, either Member may
execute any agreement, document or instrument required to be executed by the
Company under this Agreement, the EDC Contribution Agreement or the MTI
Contribution Agreement.

   9.3  Confidentiality.  













        (a) (1)  Each Member shall deal in confidence with all matters involving
   the Company until such time as there has been a general public disclosure.
   Subject to subsection 9.3(a)(2), no Member shall disclose or use any
   Confidential Information, Inventions or Confidential Documents of the Company
   (as such terms are defined below) except for the direct or indirect benefit
   of the Company.

            (2)  In the event a Member receives a discovery request (including,
   without limitation, document requests, subpoenas, notices of deposition,
   orders to produce documents, information or individuals) in a judicial action
   or an arbitration (referred to hereinafter as "Discovery Requests"), each
   Member agrees that:
     
                 (A)  The Member will notify the Company of the Member's
            receipt of the Discovery Request within a reasonable time following
            such receipt to allow the Company to seek an order preventing or
            limiting the disclosure by the Member of the Confidential
            Information from a tribunal having jurisdiction over the Discovery
            Request.

                 (B)  The Member will not take any action, including
            responding to the Discovery Requests before the response time, that
            would interfere with any efforts by the Company to pursue such legal
            remedies preventing or limiting disclosure of the Confidential
            Information.

                      (i)  In the event of a Discovery Request other than a
                 deposition request, this means that the Member will not
                 respond until the date set forth in the Discovery Request, thus
                 giving the Company full opportunity to obtain an order
                 modifying the Member's obligation to respond or to obtain an
                 agreement from the party making the Discovery Request that
                 the Member is not obligated to respond at that time.

                      (ii) In the event of a deposition in which a question
                 is posed requiring the disclosure of Confidential Information,
                 this means that the Member will not disclose the Confidential
                 Information as long as the Company immediately requests an
                 adjournment of the deposition in order to obtain direction from
                 a tribunal having jurisdiction over the Discovery Request as to
                 whether and under what circumstances the Member can
                 disclose the Confidential Information.  If the parties to the
                 action in which the deposition is taken do not permit the
                 Company to attend the deposition of the Member, and a question
                 requiring the disclosure of Confidential Information is asked,
                 the Member agrees that prior to disclosing the Confidential
                 Information it will request an adjournment of the deposition
                 in order to inform the Company of the question and to give the












                 Company an opportunity to seek direction from such a tribunal.


   9.4  Business Opportunities

        (a) Except as otherwise expressly provided in Section 9.4(b), nothing
   in this Agreement shall be deemed to restrict in any way the rights of any
   Member, or of any Affiliate of any Member, to conduct any other business or
   activity whatsoever, and no Member shall be accountable to the Company or to
   any other Member with respect to that business or activity even if the
   business or activity competes with the Company's business.  The organization
   of the Company shall be without prejudice to their respective rights (or to
   the rights of their respective Affiliates) to maintain, expand, or diversify
   such other interests and activities and to receive and enjoy profits or
   compensation therefrom.  Each Member waives any rights the Member might
   otherwise have to share or participate in such other interests or activities
   of any other Member or the Member's Affiliates.

        (b) Each Member understands and acknowledges that the conduct of the
   Company's business may involve business dealings and undertakings with
   Members and their Affiliates.  In any of those cases, those dealings and
   undertakings shall be at arm's length and on commercially reasonable terms
   as determined by the Management Committee.  

                                   ARTICLE X 

                         REQUIRED RECORDS; ACCOUNTING

   10.1 Contents and Location of Required Records.  The Company will maintain at
its principal place of business the following records:

        (a) A current list of the full name and last known address of each
   Member and Manager;  

        (b) A copy of the Certificate, together with any amendments to the
   Certificate;
  
        (c) A copy of this Agreement as executed by the Members, together with
   all amendments to this Agreement; 

        (d) Copies of the Company's federal, state, and local income tax returns
   and reports, if any, for the three (3) most recent calendar years; 

        (e) Copies of any financial statements of the Company for the three (3)
   most recent calendar years; 















        (f) Records (including minutes and written consents) evidencing
   authorization of Company action; 

        (g) Copies of records that would enable a Member to determine the
   Member's relative Membership Interest, Voting Rights, and Shares, and, in
   the case of Class B Members, any vesting schedule to which their Class B
   Membership Interest is subject; and 

        (h) Such other records as the Company is required to maintain pursuant
   to the Act.  

   10.2 Access to Required Records.

        (a) After giving reasonable advance notice to the Company, any Member
   may inspect and review the Required Records and may, at the Member's sole
   cost and expense, have the Company make copies of any portion or all of the
   records.

        (b) Unless the Company agrees otherwise, all Member access to the
   Required Records must take place during the Company's regular business hours.
   The Company may impose additional reasonable conditions and restrictions on
   Members' access to the Required Records, including specifying the amount of
   advance notice a Member must give and the charges imposed for copying.
   
   10.3 Tax Characterization and Returns.  

        (a) The Members acknowledge the intention that the Company be treated
   as a "partnership" for federal and state tax purposes. All provisions of this
   Agreement and the Certificate are to be construed so as to preserve that
   tax status.
     
        (b) Within ninety (90) days after the end of each Taxable Year, the
   Management Committee will cause to be delivered to each person who was a
   Member at any time during such Taxable Year a Form K-1 and such other
   information, if any, with respect to the Company as may be necessary for
   the preparation of each Member's federal, state or local income tax (or
   information) returns. 

   10.4 Accounting Decisions.

        (a) The Management Committee will make all decisions as to accounting
   matters; and

        (b) The Management Committee may cause the Company to make
   whatever elections the Company may make under the Code or the tax laws of
   the State of Michigan or any other jurisdiction having taxing authority over
   the Company.  













   10.5 "Tax Matters Member".  EDC is designated to act on behalf of the Company
as the initial "tax matters partner" within the meaning of Section 6231(a)(7)
of the Code. Any subsequent tax matters partner will be designated by EDC.

                                   ARTICLE XI

                        ADMISSION OF ADDITIONAL MEMBERS

   11.1 Admission of Additional Class A Members.  Subject to any preemptive
rights of the Class A Members pursuant to Section 4.3 (b), Additional Persons
may be admitted as Class A Members pursuant to a written offer made to a Person
by the Management Committee in connection with an offering of Shares in
accordance with Section 4.3.  The offer will establish all of the conditions
for admission of a Person as an additional Class A Member, including the amount
required as a Capital Contribution for such additional Class A Member.  

   11.2 Admission of Class B Members.  The Management Committee may, from
time to time, offer in writing Shares of Class B Membership Interests to Key
Employees under such terms and conditions as the Management Committee shall
determine in its sole discretion. The Management Committee may establish vesting
schedules for individual Key Employees that defer such Key Employee's rights
to full ownership of their respective Shares of Class B Membership Interests.
Exhibit B shall be amended from time to time to reflect the admission of Key
Employees as Class B Members, to reflect the granting of unvested and vested
rights to Key Employees to become or as Class B Members, the vested number of
Shares of Class B Membership of each Class B Member, and the unvested interest
granted to each Key Employee, whether or not admitted as a Class B Member.

   11.3 Admission of Substitute Class B Members.  Upon the Disassociation of a
Class B Member, the legal successor in interested of the Disassociated Class B
Member shall be admitted as a Substitute Class B Member (as defined below).
The Substitute Class B Member shall have all the rights and powers and shall be
subject to all the restrictions and liabilities of the Disassociated Class B
Member.  The admission of a Substitute Class B Member will not release the
Disassociated Class B Member from any liability of the Company that may have
existed prior to the admission of the Substitute Class B Member. For purposes
of this Article XI, "Substitute Class B Member" means the transferee of a Class
B Membership Interest who has been admitted to all rights of Class B Membership
pursuant to this Agreement.

   11.4 Conditions to Admission.  Notwithstanding the other provisions of this
Agreement, a proposed additional Member or Substitute Class B Member will not be
admitted as a Member until the proposed additional Member or Substitute Class
B Member agrees in writing to be bound by the terms and provisions of the
Certificate and this Agreement.  















                                   ARTICLE XII

                    TRANSFERS; WITHDRAWAL; DISASSOCIATION

   12.1 Restrictions on Transfers.  

        (a)  Except as provided in subsection 12.1(b) and Section 12.6, no
   Member shall Transfer all or any portion of his/her/its Membership Interest
   or any rights therein without the written consent of all Class A Members
   during the first three (3) years after the date of this Agreement and without
   the written consent of the Class A Members holding a majority of the
   outstanding Shares of Class A Membership Interest which consents may be in
   each case withheld by any Class A Member for any or no reason.  Any Transfer
   or attempted Transfer by any Member in violation of the preceding sentences
   shall be null and void ab initio. Each Member acknowledges the reasonableness
   of the restrictions on Transfer imposed by this Agreement in view of the
   Company's purposes and the relationship of the Members. Accordingly, these
   restrictions on Transfer shall be specifically enforceable.  Each  Member
   further agrees to hold the Company wholly and completely harmless from any
   cost, liability, or damage (including, without limitation, liabilities for
   income taxes and costs of enforcing this indemnity) incurred by the Company
   as a result of a Transfer or an attempted Transfer in violation of this
   Agreement.

        (b) Subject to compliance with all of the provisions of subsection
   12.1(d) a Disassociated Class B Member's financial rights under his or her
   Class B Membership Interest will transfer to his or her legal successor in
   interest as provided under Section 12.5 and such legal successor in interest
   shall be admitted as a Substitute Class B Member upon compliance and in
   accordance with Sections 11.3 and 11.4.

        (c) Any transferee of all or part of a Class B Membership Interest
   derives its rights exclusively through the Class B Member/transferor.  Any
   such transferee takes the transferred Class B Membership Interest subject
   to any claims or offsets the Company has or may in the future have against
   the Class B Member/transferor.

        (d) Notwithstanding anything else contained in this Article XI or
   Article XII to the contrary, Class B Membership Interests may not be
   transferred, in whole or in part:

            (i) If the transfer, alone or taken together with other
        transactions, would result in a termination of the Company within the
        meaning of Code Section 708;

           (ii) If the transferee is a Disqualified Person;














          (iii) Without an opinion of counsel satisfactory to the Company that
        the transfer is subject to an effective registration under, or exempt
        from the registration requirements of, applicable state and federal
        securities laws; and

           (iv) Unless and until the Company receives from the assignee the
        information and agreements that the Company may reasonably require,
        e.g., any taxpayer identification number, the transferee's initial tax
        basis in the transferred rights or interest, instruments of transfer,
        assignment, and assumption.

   12.2 Voluntary Withdrawal.  No Class A Member shall have the right to
voluntarily withdraw from the Company.  A Voluntary Withdrawal is a violation
of this Agreement, and upon a Voluntary Withdrawal a Class A Member shall cease
to be a Class A Member with no further right to participate in the Company's
business, Profits and Losses, or distributions, and will not be entitled to
receive any distribution pursuant to Section 18-604 of the Act.  If the Company
is continued as provided in Section 13.1(c), the Withdrawn Member shall have
the right to receive the distribution provided for under Section 12.4, but
shall not be entitled to receive in liquidation of the Withdrawn Member's
Membership Interest the fair market value of the Withdrawn Member's Membership
Interest, or any other amount on withdrawal pursuant to Section 18-604 of the
Act.

   12.3 Involuntary Withdrawal. Immediately upon the occurrence of an
Involuntary Withdrawal, the successor of the Withdrawn Member (if any) shall
become an assignee of the Withdrawn Member that holds all of its Membership
Interest subject to all of the restrictions and limitations that would be
applicable to that Membership Interest if it were still held by the Withdrawn
Member, but shall not become a Member and/or shall cease to be a Member with
no further right to participate in the Company's business, Profits and Losses,
or distributions, and will not be entitled to receive any distribution pursuant
to Section 18-604 of the Act.  If the Company is continued as provided in
Section 13.1(c), the Withdrawn Member or the assignee shall have the right to
receive the distribution provided for under Section 12.4, but shall not be
entitled to receive in liquidation of the Withdrawn Member's Membership
Interest the fair market value of the Withdrawn Member's Membership Interest
as of the date of the Involuntary Withdrawal or the date the assignee's
interest is terminated, or any other amount on withdrawal pursuant to Section
18-604 of the Act.  

   12.4 Distribution on Withdrawal or Attempted Transfer.  Upon any attempted
Transfer by a Member of all or part of a Membership Interest or Voluntary
Withdrawal of a Member, the Company may recover by offset or otherwise from
such Member damages for such Member's breach of this Agreement.

   Subject to the Act, Section 6.3, and the Company's right of offset under the
preceding paragraph, upon a Member's attempted Transfer of all or part of his/
her/its Membership Interest, a Member's Voluntary Withdrawal, or a Member's
Involuntary Withdrawal, the Company shall, in complete liquidation of such
Member's Membership Interest, make as a liquidating distribution for such









Membership Interest a Company note in an amount equal to fifty percent (50%) of
the "Net Book Value" (as defined in Section 12.7) of such  Member's Membership
Interest calling for payment of the principal amount of the note in ten (10)
equal annual installments, without interest, with the first annual installment
being due on the later of one (1) year after the date of such note or five
years after the date of this Agreement. 

   12.5 Disassociation. Upon the Disassociation of a Class B Member, the Company
will continue without dissolution, and  the Disassociated Class B Member shall
be deemed to have transferred all of the financial rights associated with his/
her/its financial rights to such Class B Member's legal successor in interest
as set forth in Section 10.2(b).

   12.6 Redemption of Class B Membership Interest.  A Class B Member may at any
time offer his/her vested Shares of Class B Membership Interest for sale to the
Company and the Company shall be obligated to purchase such Shares upon the
following terms:

        (a) The price ("Purchase Price") to be paid for such interest shall be
   an amount equal to the "Net Book Value" (as defined in Section 12.7) of such
   Class B Member's Membership Interest;

        (b) The closing shall occur at the Company's registered office on the
   thirtieth (30th) day following the date of the offer to sell; and


        (c) At the closing, the selling Class B Member shall assign its Shares
   of Class B Membership Interest to the Company and the Company shall deliver
   to the selling Class B Member a Company note in an amount equal to the
   Purchase Price calling for payment of the principal amount of the note in
   five (5) equal annual installments, together with quarterly payments of
   interest accruing on the unpaid principal amount of the note at the
   Applicable Federal Rate and permitting the Company to prepay such note at
   any time without penalty or premium.

   12.7 "Net Book Value". For purposes of this Section 12.7 the "Net Book Value"
of a Member's Membership Interest shall be determined as of the last day of the
calendar month immediately preceding the occurrence of the Member's attempted
Transfer, Voluntary or Involuntary Withdrawal, or Disassociation and shall
equal the amount that would be distributed to such Member in liquidation of
the Company pursuant to Article XIII, if (a) the Gross Asset Values of the
Company Property were adjusted as set forth in Section 1.29(b) hereof, (b) all
of the Company's assets were sold for their Gross Asset Values, as so adjusted,
(c) the Company paid its accrued, but unpaid, liabilities and established
reserves pursuant to Article XIII for the payment of reasonably anticipated
contingent or unknown liabilities, and (d) the Company distributed the
remaining proceeds to the Members in liquidation, as of such day.

   The Net Book Value of a Member's Membership Interest shall be determined,
without audit or certification, from the books and records of the Company by the










accounting firm regularly employed by the Company, and the amount of such Net
Book Value shall be disclosed to the Company and each of the Members by written
notice.  The Net Book Value determination of such accountants shall be final
and binding in the absence of a showing of gross negligence or willful
misconduct.


                                   ARTICLE XIII

               DISSOLUTION, WINDING UP, LIQUIDATING DISTRIBUTIONS 
                                  AND TERMINATION

   13.1 Events Causing Dissolution.  The Company shall dissolve and its business
be wound up upon the occurrence of the first of any of the following events:

        (a) By the unanimous written consent of all the Class A Members; or
        
        (b) Disposition of all of or substantially all of the assets of the
   Company; or 

        (c) Upon the occurrence of a Voluntary or Involuntary Withdrawal of a
   Class A Member unless within ninety (90) days after the date of such
   occurrence, the remaining Class A Members by a majority vote of the Class A
   Shares held by the remaining Class A Members consent in writing to continue
   the business of the Company.

   13.2 Certificate of Dissolution.  As soon as practicable following the
occurrence of any of the events specified in Section 13.1 that cause the
dissolution of the Company, the Company shall execute and file a Certificate
of Dissolution, as prescribed by the Act.

   13.3 Dissolution Procedure.  The Company shall be terminated after the
dissolution described in Section 13.1, in which event the Management Committee
shall promptly wind up the affairs of the Company, liquidate and discharge all
debts and liabilities of the Company and distribute all assets in accordance
with this Agreement and the Act.

   13.4 Tax Obligations.  Before the assets of the Company are distributed
pursuant to Section 13.5 below, the Company shall file tax returns and pay
tax obligations as required by applicable state tax laws.  

   13.5 Distributions at Liquidation.  Subject to Section 13.10 and subject to
the right of the Management Committee to establish cash reserves as may be
deemed reasonably necessary for any contingent or unforeseen liabilities or
obligations of the Company, the proceeds of the liquidation and any other funds
of the Company shall be distributed as follows:














        (a) First, to the payment and discharge of all Company Liabilities to
   creditors other than the Managers or Members;   

        (b) Second, to the payment and discharge of all Company Liabilities to
   the Managers and Members; 

        (c) Third, to the Members in accordance with their Capital Accounts,
   after giving effect to all contributions, distributions, and allocations for
   all periods; and

        (d) The balance, if any, to the Members in proportion to the number of
   Shares held by each Member to the number of Shares Issued.  

        If any Member has a deficit balance in his/her/its Capital Account
   (after giving effect to all contributions, distributions, and allocations
   for all Taxable Years, including the Taxable Year during which such
   liquidation occurs), such Member shall have no obligation to make any
   contribution to the capital of the Company with respect to such deficit,
   and such deficit shall not be considered a debt owed to the Company or
   to any other Person for any purpose whatsoever.

   13.6 Final Report.  Within a reasonable time following the completion of the
liquidation of the Company, the Management Committee shall supply to each Member
a statement that states the assets and liabilities of the Company as of the date
of complete liquidation and each Member's portion of payments and distributions
pursuant to Section 13.5. 

   13.7 Rights of Members. Each Member shall look solely to the Company Property
for all distributions with respect to the Company, to its Capital Contribution,
and to its share of Profits and Losses, and no Member shall have recourse (upon
dissolution or otherwise) against any other Member.  No Member shall be entitled
to receive Company Property other than cash upon the dissolution and termination
of the Company.

     13.8 Termination.  Upon the completion of the liquidation of the Company
and the distribution of all Company Property, the Company shall terminate. The
Management Committee shall have the authority to execute and record a
Certificate of Dissolution as well as any and all other documents required to
effect the dissolution and termination of the Company. 

   13.9 Deemed Distribution and Recontribution.  Notwithstanding any other
provisions of this Article XIII, in the event the Company is liquidated within
the meaning of Regulations Section 1.704-1(b)(2)(ii)(g), but the Class A Members
holding a majority of the Class A Shares entitled to vote have elected to
continue the business of the Company under Section 13.1, the Company Property
shall not be liquidated, the Company's Liabilities shall not be paid or
discharged, and the Company's affairs shall not be wound up. 













  13.10 Hire Company Employees.  At any time following the dissolution of the
Company, any Member, any Affiliate of any Member, any Manager or any Affiliate
of any Manager shall have the right to solicit for hire, and hire, any Person
who as an employee of the Company at any time.


                                   ARTICLE XIV

              INDEMNIFICATION; INSURANCE AND LIABILITY OF MEMBERS

   14.1 Indemnity.  The Company shall defend, indemnify and hold harmless each
Manager from and against any cost, expense, damage or injury suffered or
sustained by it by reason of any acts, omissions or alleged acts or omissions
arising out of any of its activities on behalf of the Company or in furtherance
of the interests of the Company, including without being limited to any
judgment, award, settlement, reasonable attorneys' fees and other costs or
expenses incurred in connection with the defense of any actual or threatened
action, proceeding or claim, if the acts, omissions or alleged acts or
omission upon which such actual or threatened actions, proceedings or claims
are based did not involve gross negligence, willful misconduct, bad faith, the
knowing violation of statutory obligations or fraud by such Manager.  Any such
indemnifications shall only be made from Company Property.  

   14.2 Disclosure.  The amount of any indemnification or advance paid pursuant
to this Article XIV and to whom and on whose behalf it was paid will be
included in the Required Records.

   14.3 Discretionary Indemnification.  Nothing in this Article XIV limits the
ability of the Management Committee to cause the Company to indemnify any Person
that is not a Manager pursuant to, and to the extent described in, an
agreement authorized by the Management Committee.

   14.4 Insurance.  The Company may purchase and maintain insurance on behalf
of a Person in that Person's official capacity against any liability asserted
against and incurred by the Person in or arising from that capacity, whether
or not the Company would have been required to indemnify the Person against
the liability under the provisions of this Article XIV.

   14.5 Other Insurance.  The Management Committee shall use its best efforts
to obtain and maintain in force such insurance as it deems necessary to protect
the Company Property and to protect the Company against liability for claims
of third persons.  The Company shall be a named insured on the policies
obtained.  Each Member shall be provided with a certificate disclosing the
issuance of the policy and its basic terms.  No such policy shall be canceled
by the Management Committee except after it shall have given at least thirty
(30) days prior written notice to the Members to that effect.  Except as














assumed by the Company, each Member shall be responsible for insuring itself
against damages, losses and liabilities relative to its Membership Interest
in the Company.

   14.6 Limited Liability of Members.  Pursuant to the Act, the Members shall
have no personal liability whatsoever, whether to the Company, to any of the
Members, or to the creditors of the Company, for the debts of the Company or
any of its losses beyond the amounts contributed or committed to be contributed
by that Member to the capital of the Company pursuant to this Agreement; nor
shall the Members have any other obligations or liabilities under this
Agreement other than those specifically set forth in this Agreement.


                                   ARTICLE XV

                              REMEDIES FOR BREACH

   15.1 Specific Enforcement.  All breaches of this Agreement are subject to
specific enforcement, without prejudice to the right to seek damages or other
remedies.

   15.2 Attorney Fees and Other Litigation Expenses. If the Company resorts to
litigation to remedy a breach of this Agreement by a Member or former Member
and the Company prevails in the litigation, in addition to any other remedies
available to the Company under this Agreement or by law the Company may
collect its actual attorney fees and other costs and expenses of litigation.

                                   ARTICLE XVI

                                    AMENDMENTS

   16.1 Amendment of Agreement.  This Agreement may only be amended at a
special meeting of Members called for the purpose of amending this Agreement
or by the written consent of Members to a proposed written amendment to this
Agreement.

   16.2 Required Vote.  Any proposed amendment to this Agreement shall only
become effective upon the vote or written consent of more than fifty (50%) of
all the votes entitled to be cast by the Class A Members; provided, however,
that without the unanimous consent of all Class A Members, this Agreement
shall not be amended to:

       (a) Cause the Company to effect any registration of the Shares, except
   as provided in Section 4.8;

       (b) Except as otherwise provided in Section 4.8, cause the Company to
   lose its status as a limited liability company, taxable as a partnership for
   federal income tax purposes; 












       (c) Amend this Section 16.2 or Sections 4.2, 4.3(b), 4.8, 5.1(a), 5.1(b),
   7.1, 7.2, 7.2(b)(15), 7.3, 7.5, 7.6, 7.8, 7.9, 12.1 or 13.1 of this
   Agreement; or

       (d) Affect any rights of the Class B Members in their Class B Membership
   Interests, including, but not limited to, amending any part of the definition
   in Section 1.13.


                                   ARTICLE XVII

                                  MISCELLANEOUS

   17.1 Governing Law.  All questions pertaining to this Agreement shall be
governed by and construed in accordance with the laws of the State of Delaware.
It is further agreed that any and all litigation relating to this Agreement or
the Company shall be brought in a state or federal court located within the
State of Michigan; and each party, for the purpose of all such litigation,
hereby submits to the exclusive jurisdiction and venue of such courts.

   17.2 Notices.  

       (a) Any notice, request, consent, offer or demand required or permitted
   to be given under this Agreement shall be in writing and shall either be
   delivered in person or mailed by first class mail, postage prepaid, or sent
   by telex, telecopy or telegram, addressed to the Party intended as the
   recipient as follows:

          If to the Company:          With a copy to:

          Plug Power, LLC             DTE Energy, Inc.
          968 Albany - Shaker Road    2000 Second Avenue, 644 WCB
          Latham, New York  12110     Detroit, Michigan  48226
          Attn:  Gary Mittleman       Attn:  Chris C. Nern
          Fax No.:(518) 785-2127      Fax No.:(313) 235-8500


        If to any Member:  at the address shown on Exhibit A and B, unless a
   Member shall have requested the Company in writing at least thirty (30) days
   before the date of a notice to use a different address.

        (b) Any notice, request, consent, offer or demand shall be deemed
   received, given or served, if mailed by first class mail, on the 3rd day
   after the day of mailing, and, if sent by telex, telecopy or telegram, 24
   hours after the time of dispatch.















   17.3 Agreement for Further Execution.  As soon as practicable after being
requested by the Management Committee to do so, the Members agree to sign,
swear to or acknowledge the Certificate required by the Act; to sign, swear to,
or acknowledge any amendment or cancellation as required by law; to sign,
swear to or acknowledge similar certificates or affidavits or certificates of
assumed firm name, trade name or the like (and any amendments or cancellations
thereof) required by the laws of Delaware; and to cause the filing of any of
the same for record wherever such filing shall be required by law.

   17.4 Entire Agreement.  This Agreement contains the entire understanding
between the Members and the Company and supersedes any prior understanding and
agreements between them respecting the subject matter herein.  There are no
representations, agreements, arrangements or understandings, oral or written,
between the parties hereto relating to the subject matter of this Agreement
which are not fully expressed or described herein.

   17.5 Severability.  This Agreement is intended to be performed in accordance
with, and only to the extent permitted by, all applicable laws, ordinances,
rules and regulations of the jurisdictions in which the Company does business.
If any provision of this Agreement or the application thereto to any person or
circumstance shall, for any reason and to any extent, be invalid or
unenforceable, the remainder of this Agreement and the application of such
provision to any other Person or circumstances shall not be affected thereby,
but rather shall be enforced to the greatest extent permitted by law.

   17.6 Captions.  All Section titles and captions contained in this Agreement
are for convenience only and shall not be deemed part of the context of this
Agreement.

   17.7 Number and Gender.  All the terms and words used in this Agreement,
regardless of the number and gender in which they are used, shall be deemed
and construed to include any other number, singular or plural, and any other
gender, masculine, feminine or neuter, as the context or sense of this
Agreement or any Section, paragraph or clause herein may require, the same as
if such word had been fully and properly written in such number and gender.

   17.8 Binding Effect.  Subject to the provisions of this Agreement relating
to transferability, this Agreement will be binding upon and shall inure to the
benefit of the parties, and their respective distributees, heirs, successors
and assigns.




















   17.9 Counterparts.  This Agreement may be executed in several counterparts,
each of which will be deemed an original but all of which will constitute one
and the same.

                        EDISON DEVELOPMENT CORPORATION 
                        (a Michigan corporation)

                         By:  /s/ Larry Garberding
                            ______________________________________

                         Its: Executive Vice-President
                             _____________________________________



                        MECHANICAL TECHNOLOGY INCORPORATED
                        (a New York corporation)

                         By:  /s/ Martin Mastroianni
                            ______________________________________

                         Its: President
                             _____________________________________





































                                   EXHIBIT A

             CLASS A MEMBERS, CAPITAL CONTRIBUTIONS, AND SHARES





Class A                 FMV of Capital    Adjusted           
Members                 Contributions      Basis         Shares
- -------                 -------------     --------       ------

Edison Development       $4,750,000       $4,750,000     4,750,000
  Corporation           



Mechanical Technology    $4,750,000       $  300,000     4,750,000
  Incorporated          









































                                   EXHIBIT B

               CLASS B MEMBERS, CAPITAL CONTRIBUTIONS, AND SHARES


Class B                 FMV of Capital     Adjusted        
Members                 Contribution         Basis          Shares
- -------                 ------------       --------         ------




















































                                   EXHIBIT C
                         Major Milestones for Plug Power

          The following pages describe milestones, mainly technical, that Plug
Power is expected to meet or exceed over the next three years.  Milestones have
been broadly defined for each six month period.

          I.        Six Month Milestones

                    Plug Power is expected to meet or exceed the following
                    milestones by December 31, 1997 (within about six months
                    of Plug Power formation).

                    Plug Power shall have:

                    CONFIDENTIAL TREATMENT REQUESTED.

          II.       Twelve Month Milestones

                    Plug Power is expected to meet or exceed the following
                    milestones by June 30, 1998 (within about 12 months of
                    Plug Power formation).

                    Plug Power shall have:

                    CONFIDENTIAL TREATMENT REQUESTED.

          III.      Eighteen Month Milestones

                    Plug Power is expected to meet or exceed the following
                    milestones by December 31, 1998 (within about 18 months
                    of Plug Power formation).

                    Plug Power shall have:

                    CONFIDENTIAL TREATMENT REQUESTED.

          IV.       Twenty-four Month Period

                    Plug Power is expected to meet or exceed the following
                    milestones by June 30, 1999 (within about 24 months of
                    Plug Power formation).

                    Plug Power shall have:

                    CONFIDENTIAL TREATMENT REQUESTED.

          V.        Thirty Month Period

                    Plug Power is expected to meet or exceed the following
                    milestones by December 30, 1999 (within about 30 months
                    of Plug Power formation).

                    Plug Power shall have:

                    CONFIDENTIAL TREATMENT REQUESTED.

          VI.       Thirty-six Month Plan

                    Plug Power is expected to meet or exceed the following
                    milestones by June 30, 2000 (within about 36 months of
                    Plug Power formation).

                    Plug Power shall have:

                    CONFIDENTIAL TREATMENT REQUESTED.






















































                                   EXHIBIT D

                             CONTRACT PROPOSALS

          1.)  The attached list of active proposals.

          2.)  Any contracts that Plug Power, LLC agrees are attributable or
were presented to Plug Power, LLC by MTI.

SCHEDULE OF ACTIVE PROPOSALS

No.    Title     Customer    Value    Quote Date    Est. Award Date    Comments

                        CONFIDENTIAL TREATMENT REQUESTED.














































                                   EXHIBIT E

                       EXCLUDED CONTRACTS AND PROPOSALS

                                      None























































                                   EXHIBIT F

                     OPTION AGREEMENT - CONTRIBUTION MATCH

























































                                   EXHIBIT G
                               
                     OPTION AGREEMENT - RETURNED SHARES