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                                                                  Exhibit 4.3

                                  H POWER CORP.

                         JUNE 6, 1989 STOCK OPTION PLAN

1.       PURPOSE

         The purpose of the H POWER CORP. June 6, 1989 Stock Option Plan ("The
Plan") is to advance the interests of H Power Corp. ("The Corporation"), its
shareholders and its subsidiaries by encouraging and enabling selected officers,
directors, key employees and consultants upon whose judgment, initiative and
effort the Corporation is largely dependent upon for the successful conduct of
its business, to acquire and retain proprietary interests in the Corporation by
ownership of its stock. Options granted under the Plan are intended to be
nonqualified stock options.

2.       DEFINITIONS

         Whenever used herein, the following terms shall have the following
meanings, respectively:

         (a)  "Board" shall mean the Board of Directors of the Corporation.

         (b)  "Committee" shall mean the Stock Option Committee appointed by
the Board of Directors of the Corporation or, if no committee has been
appointed, reference to "Committee" shall be deemed to refer to the Board of
Directors of the Corporation.

         (c)  "Common Stock" shall mean the Corporation's Common Stock, par
value $.,001 per share as described in the Corporation's Certificate of
Incorporation.

         (d)  "Corporation" Shall mean H Power Corp.

         (e)  "Employee" shall mean any director, officer, employee or
consultant of the Corporation or any Subsidiary of the Corporation, it being
understood that the Committee may, in its discretion, also grant Options to
induce individuals to become and remain as Employees and that such persons,
for purposes of receiving options hereunder, shall be deemed "Employees."

         (f)  "Date of Grant" means the date on which an option is granted under
the Plan.

         (g)  "Option" mean an option granted under the Plan.

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         (h) "Optionee" means a person to whom an option, which has not expired,
has been granted under the Plan.

         (i) "Subsidiary" shall mean any corporation, the majority of the
outstanding capital of which is owned, directly or indirectly, by the
Corporation.

3.       ADMINISTRATION

         (a) The Plan shall be administered either by the Board or, in the
discretion of the Board, by a Committee of at least three persons appointed by
the Board. The Board may from time to time appoint members of the Committee in
substitution for or in addition to members previously appointed and may fill
vacancies.

         (b) Any action of the Committee with respect to the administration of
the Plan shall be taken by majority vote or by written consent of a majority of
its members.

         (c) Subject to the provisions of the Plan, the Committee or the Board
shall have the authority to construe and interpret the Plan, to define the terms
used therein, to determine the time or times an Option may be exercised and the
number of shares which may be exercised at any one time to prescribe, amend and
rescind rules and regulations relating to the Plan, and to make all other
determinations necessary or advisable for the administration of the Plan. All
determinations and interpretations made by the Committee shall be conclusive and
binding on all Employees and on their guardians, legal representatives and
beneficiaries.

         (d) The Corporation will indemnify and hold harmless the members of the
Board of Directors and the Committee from and against any and all liabilities,
costs and expenses incurred by such persons as a result of any act, or omission
to act, in connection with the performance of such persons' duties,
responsibilities and obligations under the Plan, other than such liabilities,
costs and expenses as may result from the negligence, gross negligence, bad
faith, willful misconduct and/or criminal acts of such persons.

4.       NUMBERS OF SHARES SUBJECT TO PLAN

         The stock to be offered under the Plan shall consist of up to 500,000
shares of the Corporation's Common Stock. If any option granted hereunder shall
expire or terminate for any reason without having been exercised in full, the
unpurchased shares subject thereto shall again be available for purposes of this
Plan.

5.       ELIGIBILITY AND PARTICIPATION

         The Committee shall determine the Employees to whom Options shall be
granted, the time or times at which such Options shall be granted and the number
of shares to be subject to each Option. An Employee who has been granted an
Option may, if he or she is otherwise eligible, be granted an additional Option
or Options if the Committee shall so determine.

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6.       OPTION GRANT AND AGREEMENT

         Each Option granted hereunder shall be evidenced by an agreement
executed by the Corporation and the Optionee and shall contain such terms and
conditions as may be determined by the Committee consistent with the Plan.

7.       OPTION PRICE

         The option price per share with respect to each option shall be
determined by the Committee but shall in no instance be less than 80% of the
fair market value of a share of the Common Stock on the Date of Grant. For the
purposes hereof, fair market value shall be as determined by the Committee and
such determination shall be binding upon the Corporation and upon the Optionee.
In the event the Common Stock of the Corporation is publicly traded, the
Committee may, but shall not be required to, make such determination (i) in case
the Common Stock shall not then be listed and traded upon a recognized
securities exchange, upon the basis of the mean between the bid and asked
quotations for such stock on the Date of Grant (as reported by a recognized
stock quotation service) or, in the event that there shall be no bid or asked
quotations on the Date of Grant, then upon the basis of the mean between the bid
and asked quotations on the date nearest preceding the Date of Grant or (ii) in
case the Common Stock shall then be listed and traded upon a recognized
securities exchange, upon the basis of the mean between the highest and lowest
selling prices at which shares of the Common Stock were traded on such
recognized securities exchange on the Date of Grant or, if the Common Stock was
not traded on said Date, upon the basis of the mean of such prices on the date
nearest preceding the Date of Grant, and upon any other factors which the
Committee shall deem appropriate.

8.       PERIOD OF OPTION

         The expiration date of such option shall be fixed by the Committee,
but, notwithstanding any provision of the Plan to the contrary, such expiration
date shall not be more than five years from the Date of Grant.

9.       VESTING OF SHAREHOLDER RIGHTS

         Neither any Optionee nor his or her successor shall have any of the
rights of a shareholder of the Corporation until the certificates evidencing the
shares purchased are properly delivered to such Optionee or his or her
successor.

10.      EXERCISE OF OPTIONS

  Options may be exercised in whole or in part at any time within the period
permitted for the exercise thereof, and shall be exercised by written notice
of intent to exercise the Option with respect to a specified number of
shares, delivered to the

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Corporation at its principal office and payment in full to the Corporation at
said office of the amount of the option price for the number of shares with
respect to which the option is then being exercised. The exercise of an Option
shall not include any fractional shares. In addition to and at the time of
payment of the Option price, Optionee shall pay to the Corporation in cash the
full amount of all federal and state withholding or other employment taxes
applicable to the taxable income of such Optionee resulting from such exercise,
if any be due.

11.      NONTRANSFERABILITY OF OPTION

         No option shall be transferable or assignable by an Optionee,
otherwise than by will or the laws of descent and distribution and each option
shall be exercisable, during the Optionee's lifetime, only by him or her. No
option shall be pledged or hypothecated in any way and no option shall be
subject to execution, attachment or similar process except with the express
consent of the Committee.

12.      TERMINATION OF EMPLOYMENT OTHER THAN BY DEATH

         I any Optionee ceases to be an Employee for any reason other than his
or her death, any Options granted to him or her under the Plan shall terminate
90 days from the date on which the Optionee ceases to be an Employee. During
such 90-day period, the Optionee may exercise any Option granted to him or her
but only to the extent such Option was exercisable on the date he or she ceases
to be an Employee and provided that such Option has not expired or otherwise
terminated as provided herein.

13.      DEATH OF OPTIONEE

         If any Optionee shall die at a time when he or she is an Employee of
the Corporation or any Subsidiary of the Corporation, any Options granted to him
or her under this Plan shall terminate one year after the date of his or her
death unless by its terms it shall expire before such date or otherwise
terminate as provided herein, and shall only be exercisable to the extent that
it would have been exercisable on the date of his or her death. In the event of
death, the Option may be exercised by the persons or persons to whom the
Optionee's rights under the Option shall pass by will or by the laws of descent
and distribution.

14.      STOCK PURCHASE NOT FOR DISTRIBUTION

         Each Optionee shall, by accepting the grant of an Option under the
Plan, represent and agree, for himself or herself and his or her transferees by
will or the laws of descent and distribution, that all shares of stock purchased
upon exercise of the Option will be received and held without a view to
distribution except as may be permitted by the Securities Act of 1933, as
amended, and the rules and regulations promulgated thereunder. After each notice
of exercise of any portion of an Option, if requested by the Committee, the
person entitled to exercise the Option

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must agree in writing that the shares of stock are being acquired in good faith
without a view to distribution.

15.      ADJUSTMENTS

         (a) In the event that the outstanding shares of Common Stock hereafter
are changed into or exchanged for a different number or kind of shares or other
securities of the Corporation or of another corporation by reason of merger,
consolidation, other reorganization, recapitalization, reclassification,
combination of shares, stock split up or stock dividend:

         (i)    The aggregate number and kind of shares subject to Options
which may be granted hereunder shall be adjusted appropriately;

         (ii)   Rights under outstanding Options granted hereunder, both as
to the number of subject shares and the Option price, shall be adjusted
appropriately;

         (iii)  Where any merger or combination in which the Corporation is
not a surviving corporation is involved, each outstanding Option granted
hereunder shall terminate, but the Optionee shall have the right, immediately
prior to such merger or consolidation, to exercise his or her Option, in
whole or in part, to the extent that it shall not have been exercised
previously.

         (b) In the event of the dissolution or liquidation of the Corporation,
any option granted under the Plan shall terminate as of a date to be fixed by
the Committee, provided that not less than 30 days written notice of the date so
fixed shall be given to exercise his or her option as to all or any part of the
shares covered hereby including shares as to which such Option would not
otherwise be exercisable by reason of an insufficient lapse of time.

         (c) Adjustments under this Section shall be made by the Committee,
whose determination as to what adjustment shall be made, and the extent thereof,
shall be final, binding and conclusive. No fractional shares of stock shall be
issued under the Plan or in connection with any such adjustment.

16.      AMENDMENT AND TERMINATION OF PLAN

         (a) The Board of Directors of the Corporation may from time to time,
with respect to any shares at the time not subject to Options, suspend or
terminate the Plan or amend or revise the terms of the Plan; provided that any
amendment to the Plan shall be approved by a majority of the shareholders of the
Corporation if the amendment would (i) materially increase the benefits accruing
to participants under the Plan; (ii) increase the number of shares of Common
Stock which may be issued under the Plan, except as permitted under the
provisions of Section 15 hereof; or (iii) materially modify the requirements as
to eligibility for participation in the Plan.

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         (b) No amendment, suspension or termination of the Plan shall, without
the consent of the Optionee, alter or impair any rights or obligations under any
Option theretofore granted to such options under the Plan.

         (c) The terms and conditions of any Option granted to an Optionee under
the Plan may be modified or amended only by a written agreement executed by the
Optionee and the Corporation.

17.      EFFECTIVE DATE OF PLAN

         This Plan shall become effective immediately.

18.      TERM, OF PLAN

         No Option shall be granted pursuant to the Plan after June 6, 1994.

Adopted by the Stockholders
on June 6, 1989

/s/ Frederick Entman
------------------------
        Secretary

H Power Stock Option Plan                                       Page 6 of 6 page<PAGE>

                                 H. Power Corp. Employee Stock Option Agreement

                                                                    EXHIBIT 4.4

                                  H POWER CORP.

                      NON-QUALIFIED STOCK OPTION AGREEMENT

Date Option Granted:

                                                                       Option #

Name of Optionee:

Residence Address:

City and State:

        THIS AGREEMENT made as of the date set forth above, between H POWER
CORP., a Delaware corporation (the "Company"), and __________________ (the
"Optionee").

        The Board of Directors of the Company, or a duly appointed Stock Option
Committee (collectively the "Committee") thereof, has determined that it is to
the advantage and interest of the Company and its stockholders to grant the
option provided for herein to the Optionee as an inducement to remain in the
service of the Company and as an incentive for increased effort during such
service, and in consideration of the mutual covenants herein contained, the
parties hereto agree as follows:

        Pursuant to and subject to the terms and conditions of the H Power Corp.
June 6, 1989 Stock Option Plan (the "Plan"), the Company grants to the Optionee
the right and option (the "Option") to purchase on the terms and conditions
hereinafter set forth all or any part of an aggregate of _____ shares (the
"Shares") of the presently authorized and unissued common stock, $.001 par
value, of the Company ("Stock") at the purchase price of $____ per share. The
Option shall be exercisable as follows:

(a) From ______ to _______, _______ of the Shares;
(b) From ______ to _______, _______ of the Shares;
(c) From ______ to _______, _______ of the Shares;
(d) From ______ to _______, _______ of the Shares;

         Nothing contained herein shall be construed to limit or restrict the
right of the Company to terminate the Optionee's employment at any time, with or
without cause, or to increase or decrease the Optionee's compensation from the
rate in existence at the time the Option is granted.

         Without limiting the generality of the foregoing, the Option is subject
to the following terms and conditions:

1.       EXERCISE.

         The right to exercise the Option granted hereunder shall be cumulative
         to the extent that the right to exercise has accrued and has not been
         exercised.

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                                 H. Power Corp. Employee Stock Option Agreement

2.       METHOD OF EXERCISE

         To the extent that the right to purchase shares has accrued hereunder,
the Option may be exercised from time to time by written notice to the Company
stating the number of Shares with respect to which the Option is being
exercised, and the time of the delivery thereof, which shall be at least fifteen
(15) days after the giving of such notice unless an earlier date shall have been
mutually agreed upon. If requested by the Committee, prior to the delivery of
any Shares, the Optionee, or any other person entitled to exercise the Option,
shall supply the Committee with a representation that the Shares are not being
acquired with a view to distribution and will be sold or otherwise disposed of
only in accordance with the applicable Federal and state statutes, rules and
regulations. As a condition to the exercise of the Option, in whole or in part,
the Committee may in its sole discretion require the Optionee to pay, in
addition to the purchase price of the Shares covered by the Option, an amount
equal to any Federal, state or local taxes that may be required to be withheld
in connection with the exercise of the Option. At the time specified in such
notice, or as soon thereafter as the Company is reasonably able to comply, the
Company shall, without transfer or issue tax to the Optionee or other person
entitled to exercise the Option, deliver to the Optionee or such other person,
at the main office of the Company or such other place that shall be mutually
acceptable, a certificate or certificates for such Shares of Common Stock, as
the Company may elect, against payment in full, in United States currency, by
cash or by certified or cashier's check payable to the order of the Company, of
the purchase price for the number of Shares to be delivered and of any Federal,
state or local taxes that the Committee has determined are required to be
withheld.

         Notwithstanding the foregoing, the Company shall have the right to
postpone the time of delivery of the Shares for such period as may be required
for it with reasonable diligence to comply with any applicable listing
requirements of any national securities exchange or any Federal, state or local
law. In the event the Company is unable to comply with any regulatory
requirements deemed necessary by counsel of the Company for the lawful issuance
and sale of Stock hereunder, the Company shall be relieved of any obligation and
liability to issue said Stock, notwithstanding the attempted exercise of the
Option. If the Optionee, or other person entitled to exercise the Option, fails
to accept delivery of and pay for all or any portion of the Shares specified in
such notice upon tender of delivery thereof, the Committee shall have the right
to terminate the Option for less than the total number of Shares for which the
Option is exercisable, provided that a partial exercise may not be for less than
one hundred (100) Shares, except during the final year of the Option, and shall
not include any fractional Shares.

3.       TERMINATION OF OPTION

         The Option shall terminate and expire upon the earlier of:

         (a)  The last date for exercise of the Option specified on page one
              of this Agreement;

         (b)  The expiration of three months from the date of the Optionee's
              termination of employment or directorship with the Company
              other than by reason of termination for death;

         (c)  The expiration of one year from the date of the Optionee's
              termination of employment or directorship with the Company or
              one of its Subsidiaries by reason of death;

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                                 H. Power Corp. Employee Stock Option Agreement

         (d)  The termination of the Option pursuant to Section 5 hereof; or

         (e)  The expiration of five years from the date hereof.

         A termination of employment or directorship by reason of the death,
retirement or permanent disability of the Optionee or otherwise shall not
accelerate or otherwise affect the number of Shares with respect to which the
Option may be exercised, and the Option may only be exercised with respect to
the number of Shares for which it was exercisable at the date of such
termination of employment. In the event of the Optionee's death, the Option may
be exercised prior to its expiration or termination by his personal
representative, or if there is no personal representative, by his heir or
legatee.

         Termination of employment or directorship (other than by reason of
death) for purposes hereof shall be the date of the Optionee's retirement under
the normal retirement policies of the Company or the Optionee's retirement with
the approval of the Committee because of disability other than permanent
disability; the date the Optionee receives notice or advice that his employment
or directorship is terminated; or the date the Optionee ceases to render his
services to the Company (absences for temporary illness and emergencies, and
vacations or leaves of absence approved in writing by the Committee excepted).
The fact that the Optionee may receive payment from the Company after
termination for vacation pay, for services rendered prior to termination, for
salary in lieu of notice, or for other benefits shall not affect the termination
date.

4.       ADJUSTMENTS

         If there are any changes in the capitalization of the Company affecting
in any manner the number or kind of outstanding shares of Stock of the Company,
whether such changes have been occasioned by reorganization, combination of
shares, declaration of stock dividends, stock splits, reclassifications or
recapitalizations of such stock, the merger or consolidation of the Company with
some other corporation (and provided the Option does not thereby terminate
pursuant to Section 5 hereof) or other similar transaction, then the number and
kind of Shares then subject to the Option and the price to be paid therefor
shall be appropriately adjusted by the Committee, provided, however, that in no
event shall any such adjustment result in the Company being required to sell or
issue a fractional share of stock.

5.       CESSATION OF CORPORATE EXISTENCE

         Upon the dissolution or liquidation of the Company, or upon a
reorganization, merger or consolidation of the Company with one or more
corporations as a result of which the Company is not the surviving corporation,
or upon a sale of substantially all the assets of the Company or of more than
80% of the then outstanding stock of the Company to another corporation or
entity, the Option granted hereunder shall terminate on the day before the
consummation of such transaction and the Committee shall have the right, but
shall not be obligated, to accelerate the time in which the Option may be
exercised, unless provision be made in writing in connection with such
transaction for the assumption of the Option or for the substitution for the
Option of a new option to purchase the stock of a successor employer
corporation, or a parent or subsidiary thereof, with appropriate adjustments as
to number and kind of shares and the option price thereof, in which event the
option granted herein shall continue in the manner and under the terms so
provided.

                               Page 3 of 5 pages

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                                 H. Power Corp. Employee Stock Option Agreement

6.       NON-TRANSFERABILITY

         The Option is not assignable or transferable, either voluntarily or by
operation of law, otherwise than by will or by the laws of descent and
distribution, and is exercisable, during the Optionee's lifetime, only by the
Optionee.

7.       WAIVER OF SHAREHOLDER RIGHTS

         The Optionee or other person entitled to exercise the Option shall have
no rights as a stockholder with respect to any shares subject hereto until the
Optionee or such person has become the holder of record of such shares and no
adjustment (except such adjustments as may be effected pursuant to the
provisions of Section 4 hereof) shall be made for dividends or distributions of
rights in respect of such shares for which the record date is prior to the date
on which the Optionee or such person becomes the holder of record.

8.       PLAN CONTROLS

         The Option shall be subject to and governed by the provisions of the
Plan (a copy of which is attached hereto as Exhibit A) which only the Committee
shall have the authority to interpret and construe. All determinations and
interpretations thereof made by the Committee shall be conclusive and binding on
all parties hereto and upon their successors and assigns. Any defined terms used
herein shall have the same meaning as set forth in the Plan.

9.       REPRESENTATIONS BY OPTIONEE

         As a condition to exercise of any Option, the Optionee hereby
represents, warrants and agrees with the Company as follows:

         (a)  He is purchasing the Stock with respect to which such Option
              is being exercised for his own account for investment purposes
              and not with any present intention to resell or distribute the
              same.

         (b)  He will not make any sale, transfer or other disposition of
              said Stock except in compliance with the Securities Act of
              1933, as amended (hereinafter referred to as the "Act") and
              Rules and Regulations thereunder.

         (c)  He is familiar with all of the provisions of Rule 144
              including (without limitation) the two (2) year holding period
              thereunder.

         (d)  He understands that the Company is under no obligation to register
              the sale, transfer or other disposition of said Stock by him or on
              his behalf or to take any other action necessary in order to make
              compliance with an exemption from registration available.

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                                 H. Power Corp. Employee Stock Option Agreement

         (e)  He understands that stop transfer instructions will be given
              to the Company transfer agent with respect to said Stock and
              that there will be a restrictive legend placed on the
              certificates for said Stock stating in substance:

              "The shares represented by this certificate have not been
              registered under the Securities Act of 1933 and may not be
              sold, pledged, or otherwise transferred except pursuant to an
              effective registration statement under said Act, or an opinion
              of counsel acceptable to the Company that some other exemption
              from registration is available."

10.      CONDITIONS TO THIS OPTION

         The Company's obligation to issue Shares of its Common Stock upon
exercise of the Option is expressly conditioned upon the completion by the
Company of any registration or other qualification of such Shares under any
State and/or Federal law or rulings or regulations of any Government
regulatory body or the making of such investment representations or other
representations and undertakings by the Optionee or any other person entitled
to exercise the option in order to comply with the requirements of any
exemption from any such registration or other qualification of such Shares
which the Committee shall, in its sole direction, deem necessary or
advisable. Such required representations and undertakings include all
representations and agreements as set out in Section 14 of the Plan,
including, but not limited to, representations and agreements that the
Optionee or any person entitled to exercise the Option (a) is not purchasing
such Shares for distribution and (b) agrees to have placed upon the face and
reverse of any certificates a legend setting forth any representations and
undertakings which have been given to the Committee, or a reference thereto,
and that prior to making any sale or other disposition of any such Shares,
the Optionee or any person entitled to exercise the Option will give the
Company a notice of intention to sell or dispose of the Shares Not less than
five days prior to such sale or disposition.

11.      METHOD OF ACCEPTANCE

         This Agreement is addressed to the Optionee in duplicate and shall not
be effective until the Optionee executes the acceptance set out below and
returns one copy to the Company, thereby acknowledging that he has read and
agreed to all the terms and conditions of the Option and the Plan.

EXECUTED this __ day of __________________

H POWER CORP

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

ACCEPTED:

-------------
Optionee

                               Page 5 of 5 pages

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