Document:

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 3in; text-align: right; text-indent: 0.5in"><B>Exhibit 10.19</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>GREENMAN TECHNOLOGIES, INC.</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B><U>Subscription Agreement</U></B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">GreenMan Technologies, Inc.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">7 Kimball Lane</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Lynnfield, Massachusetts 01940</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Ladies and Gentlemen:</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in">1.&#9;<U>Subscription</U>.<B>
</B>The undersigned (the &ldquo;<U>Purchaser</U>&rdquo;), intending to be legally bound, hereby agrees to purchase from GreenMan
Technologies, Inc., a Delaware corporation (the &ldquo;<U>Company</U>&rdquo;), the Company&rsquo;s Unsecured Promissory Note (in
the form attached hereto as <U>Exhibit A)</U> in the original principal amount set forth on the signature page hereof (the &ldquo;<U>Note</U>&rdquo;),
and hereby agrees to subscribe for that number of shares of the Company&rsquo;s common stock, par value $.01 per share (the &ldquo;<U>Shares</U>&rdquo;
and, collectively with the Note, the &ldquo;<U>Securities</U>&rdquo;), which is equal to (x) the principal amount of the Note subscribed
for, divided by (y) two, all upon the terms and conditions set forth in this agreement (the &ldquo;<U>Subscription Agreement</U>&rdquo;).</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in">2.&#9;<U>Payment</U>. The
Purchaser encloses herewith a check payable to, or will immediately make a wire transfer payment to, &ldquo;GreenMan Technology,
Inc.&rdquo; in the amount set forth on the signature page to this Subscription Agreement, representing the full amount of the purchase
price of the Securities being subscribed for. Such funds will be held for the Purchaser&rsquo;s benefit, and will be returned promptly,
without interest, penalty, expense or deduction if this Subscription Agreement is not accepted by the Company. Together with the
check for, or wire transfer of, the full purchase price, the Purchaser is delivering (i) a completed and executed counterpart signature
page to this Subscription Agreement and (ii) a completed and executed counterpart signature page to the Stock Transfer Agreement.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in">3.&#9;<U>Acceptance of
Subscription</U>. The Purchaser understands and agrees that the Company reserves the right to accept or reject this or any other
subscription for the Securities, in whole or in part. The Company shall have no obligation hereunder until the Company shall execute
and deliver to the Purchaser an executed copy of this Subscription Agreement. If this subscription is rejected in whole, all funds
received from the Purchaser will be returned without interest, penalty, expense or deduction, and this Subscription Agreement shall
thereafter be of no further force or effect. If this subscription is rejected in part, the funds for the rejected portion of this
subscription will be returned without interest, penalty, expense or deduction, and this Subscription Agreement will continue in
full force and effect to the extent this subscription was accepted.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in">4.&#9;<U>Representations
and Warranties of the Purchaser</U>. The Purchaser hereby represents, warrants, acknowledges and agrees as follows:</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1.5in">&nbsp;</P>

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<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">(a)&#9;Neither the Note nor
the Shares are registered under the Securities Act of 1933, as amended (the &ldquo;<U>Securities Act</U>&rdquo;), or any state
securities laws. The Purchaser understands that the offering and sale of the Securities is intended to be exempt from registration
under the Securities Act, by virtue of Section 4(2) thereof and the provisions of Regulation D promulgated thereunder, based, in
part, upon the representations, warranties and agreements of the Purchaser contained in this Subscription Agreement.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">(b)&#9;The Purchaser has
received this Subscription Agreement (and the form of Note attached as <U>Exhibit A</U>) and all other documents requested by the
Purchaser, has carefully reviewed them and understands the information contained therein, and the Purchaser, prior to the execution
of this Subscription Agreement, has had access to the same kind of information which would be available in a registration statement
filed by the Company under the Securities Act, including without limitation the Company&rsquo;s Commission Reports (as defined
below).</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">(c)&#9;Neither the Securities
and Exchange Commission (the &ldquo;<U>Commission</U>&rdquo;) nor any state securities commission has approved the Securities.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">(d)&#9;All documents, records
and books pertaining to the investment in the Securities have been made available for inspection by the Purchaser.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">(e)&#9;The Purchaser has
had a reasonable opportunity to ask questions of and receive answers from a person or persons acting on behalf of the Company concerning
the offering of the Securities and the business, financial condition, results of operations and prospects of the Company, and all
such questions have been answered to the full satisfaction of the Purchaser.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">(f)&#9;In evaluating the
suitability of an investment in the Company, the Purchaser has not relied upon any representation or other information (oral or
written) other than as stated in the Commission Reports.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">(g)&#9;The Purchaser is unaware
of, is in no way relying on, and did not become aware of this offering of Securities through or as a result of, any form of general
solicitation or general advertising including, without limitation, any article, notice, advertisement or other communication published
in any newspaper, magazine or similar media or broadcast over television or radio, in connection with this offering of Securities
and is not subscribing for the Securities and did not become aware of this offering of the Securities through or as a result of
any seminar or meeting to which the Purchaser was invited by, or any solicitation of a subscription by, a person not previously
known to the Purchaser in connection with investments in securities generally.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">(h)&#9;The Purchaser has
taken no action which would give rise to any claim by any person, corporation, general partnership, limited partnership, proprietorship,
entity, other business organization, trust, union or association (any of the foregoing, a &ldquo;<U>Person</U>&rdquo;) for brokerage
commissions, finders&rsquo; fees or the like relating to this Subscription Agreement or the transactions contemplated hereby.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">&nbsp;</P>

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<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">(i)&#9;The Purchaser has
such knowledge and experience in financial, tax and business matters, and, in particular, investments in securities, so as to enable
Purchaser to utilize the information made available to Purchaser in connection with this offering of Securities to evaluate the
merits and risks of an investment in the Company and to make an informed investment decision with respect thereto.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">(j)&#9;The Purchaser is not
relying on the Company or any of its employees or agents with respect to the legal, tax, economic and related considerations as
to the purchase of the Securities, and the Purchaser has relied on the advice of, or has consulted with, only his own advisors.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">(k)&#9;The Purchaser is acquiring
the Securities solely for the Purchaser&rsquo;s own account for investment and not with a view to resale, assignment or distribution
thereof, in whole or in part. The Purchaser has no agreement or arrangement, formal or informal, with any Person to sell or transfer
all or any part of the Securities and the Purchaser has no plans to enter into any such agreement or arrangement.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">(l)&#9;The Purchaser must
bear the substantial economic risks of the purchase of the Securities indefinitely because neither the Note nor the Shares may
be sold, hypothecated or otherwise disposed of unless subsequently registered under the Securities Act and applicable state securities
laws or an exemption from such registration is available. Legends shall be placed on the Note and on any certificates representing
the Shares to the effect that they have not been registered under the Securities Act or applicable state securities laws and appropriate
notations thereof will be made in the Company&rsquo;s records.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">(m)&#9;The Purchaser has
adequate means of providing for such Purchaser&rsquo;s current financial needs and foreseeable contingencies and has no need for
liquidity in the Note or the Shares for an indefinite period of time.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">(n)&#9;The Purchaser is aware
that the purchase of the Securities involves a number of very significant risks and has carefully read and considered the matters
set forth under the caption &ldquo;Risk Factors&rdquo; in the Commission Filings.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">(o)&#9;The Purchaser meets
the requirements of at least one of the suitability standards for an &ldquo;accredited investor&rdquo; as set forth on the signature
page to this Subscription Agreement.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">(p)&#9;The Purchaser: (i)
if a natural person, represents that the Purchaser has reached the age of 21 and has full power and authority to execute and deliver
this Subscription Agreement and all other related agreements or certificates and to carry out the provisions hereof and thereof;
and (ii) if a corporation, partnership, limited liability company or partnership, association, joint stock company, trust, unincorporated
organization or other entity, (1) such entity was not formed for the specific purpose of acquiring the Securities, (2) such entity
is duly organized, validly existing and in good standing under the laws of the state of its organization, (3) the consummation
of the transactions contemplated hereby is authorized by, and will not result in a violation of state law or its charter or other
organizational documents, (4) such entity has full power</P>

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<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify">and authority to execute and deliver this Subscription
Agreement and all other related agreements or certificates and to carry out the provisions hereof and thereof and to purchase and
hold the Securities, (5) the execution and delivery of this Subscription Agreement has been duly authorized by all necessary corporate
action on behalf of such entity, and (6) this Subscription Agreement has been duly executed and delivered on behalf of such entity
and is a legal, valid and binding obligation of such entity. The execution and delivery of this Subscription Agreement will not
violate or be in conflict with any order, judgment, injunction, agreement or controlling document to which the Purchaser is a party
or by which it is bound.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">(q)&#9;The Purchaser had
the opportunity to obtain any additional information, to the extent the Company had such information in its possession or could
acquire it without unreasonable effort or expense, necessary to verify the accuracy of the information contained in all documents
received or reviewed in connection with the purchase of the Securities and the opportunity to have representatives of the Company
provide Purchaser with such additional information regarding the terms and conditions of this particular investment and the financial
condition, results of operations, business and prospects of the Company deemed relevant by the Purchaser and all such requested
information, to the extent the Company had such information in its possession or could acquire it without unreasonable effort or
expense, has been provided to Purchaser&rsquo;s full satisfaction.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">(r)&#9;The Purchaser has
a sufficient net worth to sustain a loss of its entire investment in the Company in the event such a loss should occur. The Purchaser&rsquo;s
overall commitment to investments which are not readily marketable is not excessive in view of its net worth and financial circumstances
and the purchase of the Securities will not cause such commitment to become excessive. The investment is a suitable one for the
Purchaser.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">(s)&#9;The Purchaser acknowledges
and agrees that the Company does not make and has not made any representations or warranties with respect to the Company or this
offering of Securities other than those specifically set forth in this Subscription Agreement.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in">5.&#9;<U>Representations
and Warranties of the Company</U>. The Company hereby represents, warrants, acknowledges and agrees as follows:</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify">&nbsp;</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">(a)&#9;<U>Organization</U>.
The Company is a corporation duly organized, validly existing and in good standing under the laws of the State of Delaware, with
the requisite power and authority to own and use its properties and assets and to carry on its business as currently conducted.
The Company is not in violation of any material provision of its certificate of incorporation or by-laws. </B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in; text-align: justify; text-indent: 1in">&nbsp;</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">(b)&#9;<U>Authorization;
Enforcement</U>. The Company has the requisite corporate power and authority to enter into and to consummate this offering of Securities.
The execution and delivery of this Subscription Agreement by the Company and the consummation by it of the transactions contemplated
hereby have been duly authorized by all necessary action on the part of the Company and no further consent or action is required
by the Company. This Subscription Agreement, when executed and delivered in accordance with the terms hereof, will constitute the
valid and binding obligation of the Company enforceable against the Company in accordance with its terms, subject to applicable
bankruptcy, insolvency, fraudulent conveyance, reorganization, moratorium and similar laws affecting creditors&rsquo; rights and
remedies generally and general principles of equity.</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in; text-align: justify; text-indent: 1in">&nbsp;</B></P>

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<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">(c)&#9;<U>No Conflicts</U>.
The execution, delivery and performance of this Subscription Agreement by the Company and the consummation by the Company of this
offering of Securities do not and will not: (i) conflict with or violate any provision of the Company&rsquo;s certificate of incorporation
or by-laws, or (ii) conflict with, or constitute a default (or an event that with notice or lapse of time or both would become
a default) under, or give to others any rights of termination, amendment, acceleration or cancellation (with or without notice,
lapse of time or both) of, any agreement, credit facility, debt or other instrument to which the Company is a party or by which
any property or asset of the Company is bound or affected, or (iii) result in a violation of any law, rule, regulation, order,
judgment, injunction, decree or other restriction of any court or governmental authority as currently in effect to which the Company
is subject (including federal and state securities laws and regulations), or by which any property or asset of the Company is bound
or affected; except in the case of each of clauses (ii) and (iii), such as would not, individually or in the aggregate (x) adversely
affect the legality, validity or enforceability of this offering of Securities, (y) have or result in or be reasonably likely to
have or result in a material adverse effect on the results of operations, assets, prospects, business or condition (financial or
otherwise) of the Company, or (z) adversely impair the Company&rsquo;s ability to perform fully on a timely basis its obligations
under this Subscription Agreement (any of (x), (y) or (z), a &ldquo;<U>Material Adverse Effect</U>&rdquo;).</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in; text-align: justify; text-indent: 1in">&nbsp;</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">(d)&#9;<U>Filings, Consents
and Approvals</U>. The Company is not required to obtain any consent, waiver, authorization or order of, give any notice to, or
make any filing or registration with, any court or other federal, state, local or other governmental authority or Person in connection
with the execution, delivery and performance by the Company of this Subscription Agreement, other than (i) the filing with the
Commission of a Form D pursuant to Regulation D under the Securities Act, and (ii) applicable Blue Sky filings.</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in; text-align: justify; text-indent: 1in"><SUP>&nbsp;</SUP></B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">(e)&#9;<U>Issuance of the
Securities</U>. The issuance of the Securities has been duly authorized. Assuming the accuracy of the Purchaser&rsquo;s representations
and warranties set forth in Section 4, no registration under the Securities Act is required for the offer and sale of the Securities
by the Company to the Purchaser as contemplated hereby. The issuance and sale of the Securities pursuant to this Subscription Agreement
does not contravene the rules and regulations of the trading market for the Common Stock of the Company.</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">&nbsp;</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">(f)&#9;<U>Commission Reports</U>.
The Company has filed all reports required to be filed by it under the Securities Act and the Securities Exchange Act of 1934,
as amended (the &ldquo;<U>Exchange Act</U>&rdquo;), for the two years preceding the date hereof (the foregoing materials being
collectively referred to herein as the &ldquo;<U>Commission Reports</U>&rdquo;). As of their respective dates, the Commission Reports
complied in all material respects with the requirements of the Securities Act and the Exchange Act and the rules and regulations
promulgated thereunder, and none of the Commission Reports, when filed, contained any untrue statement of a material fact or omitted
to state a material fact required to be stated therein or necessary in order to make the statements therein, in light of the circumstances
under which they were made, not misleading. </B></P>

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<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">(g)&#9;<U>Material Changes</U>.
Except for this offering of Securities, since the date of the latest Commission Report, there has been no event, occurrence or
development that has had a Material Adverse Effect.</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in; text-align: justify; text-indent: 1in">&nbsp;</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">(h)&#9;<U>Disclosure</U>.
The disclosure provided to the Purchaser regarding the Company, its business and the transactions contemplated hereby, furnished
by or on behalf of the Company, including all of the Commission Reports, when taken together as a whole, does not contain any untrue
statement of a material fact or omit to state any material fact necessary in order to make the statements made therein, in light
of the circumstances under which they were made, not misleading.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in">6.&#9;<FONT STYLE="color: black"><U>Lock-Up<B>
</B></FONT>Agreement</U><FONT STYLE="color: black">. The Purchaser agrees not to sell, pledge, hypothecate, transfer or otherwise
dispose of, by operation of law or otherwise, or grant any option or purchase right with respect to, any Shares or engage in any
short sale, hedging transaction or other derivative security transaction involving the Shares for a period of six (6) months after
the issuance of the Shares. Any sale or other transfer in violation of this Section 6 shall be null and void. The Company shall
not be required (i) to transfer on its books any of the Shares which shall have been sold or transferred in violation of this Section
6 or (ii) to treat as owner of such Shares or to pay dividends to any transferee to whom any such Shares shall have been so sold
or transferred. The Purchaser understands and agrees that all certificates evidencing any of the Shares shall bear a legend, prominently
stamped or printed thereon, reading substantially as follows:</FONT></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in; color: blue">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in; text-align: justify">These securities may not sold, pledged,
hypothecated, transferred or otherwise disposed of, by operation of law or otherwise (and no option or purchase right may be granted
with respect thereto) prior to March 17, 2011.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in">7.&#9;<U>Irrevocability;
Binding Effect</U>. The Purchaser hereby acknowledges and agrees that the subscription hereunder is irrevocable by the Purchaser,
except as required by applicable law, and that this Subscription Agreement shall survive the death or disability of the Purchaser
and shall be binding upon and inure to the benefit of the parties and their heirs, executors, administrators, successors, legal
representatives and permitted assigns.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in">8.&#9;<U>Modification</U>.
This Subscription Agreement shall not be modified or waived except by an instrument in writing signed by the party against whom
any such modification or waiver is sought.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in">9.&#9;<U>Notices</U>. Any
notice or other communication required or permitted to be given hereunder shall be in writing and shall be mailed by certified
mail, return receipt requested, sent by nationwide overnight courier or delivered against receipt to the party to whom it is to
be given (a) if to the Company, at the address set forth above, or (b) if to the Purchaser, at the address set forth on the signature
page hereof (or, in either case, to such other address as the party shall have furnished in writing in accordance with the provisions
of this Section). Any notice or other communication given by certified mail shall be deemed given at the time that it is signed
for by the recipient except for a notice changing a party&rsquo;s address which shall be deemed given at the time of receipt thereof.
Any notice or other communication given by nationwide overnight courier shall be deemed given the next business day following being
deposited with such courier.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

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<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in">10.&#9;<U>Assignability</U>.
This Subscription Agreement and the rights, interests and obligations hereunder are not transferable or assignable by the Purchaser
and the transfer or assignment of the Securities shall be made only in accordance with all applicable laws.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in">11.&#9;<U>Applicable Law</U>.
This Agreement shall be governed by and construed in accordance with the laws of the Commonwealth of Massachusetts, without reference
to choice of law principles.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in">12.&#9;<U>Waiver of Jury
Trial</U>. THE COMPANY AND THE PURCHASER EACH HEREBY WAIVES ANY RIGHT TO TRIAL BY JURY OF ANY CLAIM, DEMAND, ACTION OR CAUSE OF
ACTION ARISING UNDER THIS AGREEMENT OR IN ANY WAY CONNECTED WITH OR RELATED OR INCIDENTAL TO THIS OFFERING OF SECURITIES, IN EACH
CASE WHETHER NOW EXISTING OR HEREAFTER ARISING, AND WHETHER IN CONTRACT, TORT, EQUITY OR OTHERWISE. THE COMPANY AND THE PURCHASER
EACH HEREBY AGREES AND CONSENTS THAT ANY SUCH CLAIM, DEMAND, ACTION OR CAUSE OF ACTION SHALL BE DECIDED BY COURT TRIAL WITHOUT
A JURY AND THAT THE COMPANY AND THE PURCHASER MAY FILE AN ORIGINAL COUNTERPART OF A COPY OF THIS AGREEMENT WITH ANY COURT AS WRITTEN
EVIDENCE OF THE CONSENT OF THE PARTIES HERETO TO THE WAIVER OF THEIR RIGHT TO TRIAL BY JURY.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in">13.&#9;<U>Use of Pronouns</U>.
All pronouns and any variations thereof used herein shall be deemed to refer to the masculine, feminine, neuter, singular or plural
as the identity of the person or persons referred to may require.</P>

<P STYLE="font: normal 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: normal 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in">14.&#9;<U>Miscellaneous</U>.</P>

<P STYLE="font: bold 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1.5in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">(a)&#9;This Agreement and
its exhibits and schedules constitutes the entire agreement between the Purchaser and the Company with respect to the subject matter
hereof and supersedes all prior oral or written agreements and understandings, if any, relating to the subject matter hereof.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">(b)&#9;The Purchaser&rsquo;s
and Company&rsquo;s covenants, agreements, representations and warranties made in this Agreement shall survive the execution and
delivery hereof and delivery of the Securities.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">(c)&#9;Each of the parties
hereto shall pay its own fees and expenses (including the fees of any attorneys, accountants, appraisers or others engaged by such
party) in connection with this Agreement and the transactions contemplated hereby whether or not the transactions contemplated
hereby are consummated.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">(d)&#9;This Agreement may
be executed in one or more counterparts, each of which shall be deemed an original, but all of which shall together constitute
one and the same instrument.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">&nbsp;</P>

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<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">(e)&#9;Each provision of
this Subscription Agreement shall be considered separable and, if for any reason any provision or provisions hereof are determined
to be invalid or contrary to applicable law, such invalidity or illegality shall not impair the operation of or affect the remaining
portions of this Subscription Agreement.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">(f)&#9;Paragraph titles are
for descriptive purposes only and shall not control or alter the meaning of this Subscription Agreement as set forth in the text.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: center"><I>[Remainder of Page Intentionally Left Blank]</I></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

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<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 12pt 0.5in; text-align: center; text-indent: -0.5in"><B>GREENMAN
TECHNOLOGIES, INC.</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B><U>Counterpart Signature Page to</U></B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B><U>Subscription Agreement</U></B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: center">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify">I.&#9;<U>Subscription</U>. Purchaser hereby
elects to subscribe for (i) a Note under the Subscription Agreement in the aggregate principal amount of $273,500.00 and (ii) 136,750
shares of the Company&rsquo;s common stock. (The number of Shares subscribed for must equal to (x) the principal amount of the
Note subscribed for divided by (y) two.)</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify">II.&#9;<U>Accredited Investor Confirmation</U>.
The Purchaser represents and warrants to the Company that the Purchaser is an &ldquo;Accredited Investor&rdquo;, as that term is
defined under Regulation D of the Securities Act of 1933 by reason of the qualifications described opposite the checked box:</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in; text-align: justify; text-indent: 0.5in">A. &#9;<U>Individual
Investors</U>.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0.5in 0 1.5in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font: 14pt Wingdings">&uml;</FONT>&#9;Any
natural person whose net worth, or joint net worth with that person&rsquo;s spouse at the time of the purchase,<I> excluding</I>
the value of the undersigned&rsquo;s primary residence, exceeds $1,000,000.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0.5in 0 1.5in; text-align: justify; text-indent: -0.5in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0.5in 0 1.5in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font: 14pt Wingdings">&uml;</FONT>&#9;Any
natural person who had an individual income in excess of $200,000 in each of the two most recent years or joint income with that
person&rsquo;s spouse in excess of $300,000 in each of those years and has a reasonable expectation of reaching the same income
level in the current year.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0.5in 0 1.5in; text-align: justify; text-indent: -0.5in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0.5in 0 1.5in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font: 14pt Wingdings">&uml;</FONT>&#9;Any
executive officer of the Company.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0.5in 0 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0.5in 0 0; text-align: justify; text-indent: 1in">B.&#9;<U>Investor
Entities</U>.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0.5in 0 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0.5in 0 1.5in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font: 14pt Wingdings">&uml;</FONT>&#9;Any
trust with total assets in excess of $5,000,000, not formed for the specific purpose of acquiring the Securities, whose purchase
of the Securities is directed by a person who has such knowledge and experience in financial and business matters that such person
is capable of evaluating the merits and risks of the prospective investment in the Securities. <B>Note: If this qualification is
selected, the representative of the trust must deliver to the Company a written summary of his or her knowledge and experience
in financial and business matters on a separate form to be provided by the Company.</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0.5in 0 1.5in; text-align: justify; text-indent: -0.5in"><B>&nbsp;</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0.5in 0 1.5in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font: 14pt Wingdings">&uml;</FONT><B>&#9;</B>Any
private business development company as defined in section 202(a)(22) of the Investment Advisers Act of 1940.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0.5in 0 0; text-align: justify">&nbsp;</P>

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<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0.5in 0 1.5in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font: 14pt Wingdings">&uml;</FONT>&#9;Any
organization described in Section 501(c)(3) of the Internal Revenue Code, corporation, Massachusetts or similar business trust,
or partnership, not formed for the specific purpose of acquiring the Securities, with total assets in excess of $5,000,000.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0.5in 0 1.5in; text-align: justify; text-indent: -0.5in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0.5in 0 1.5in; text-align: justify">The undersigned is a ___________________________
meeting the foregoing description.<FONT STYLE="font-size: 10pt"> (<I>Insert Type of Entity</I>)</FONT></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0.5in 0 1.5in; text-align: justify; text-indent: -0.5in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0.5in 0 1.5in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font: 14pt Wingdings">&uml;</FONT>&#9;</FONT>Any
entity in which all of the equity owners are Accredited Investors.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0.5in 0 1.5in; text-align: justify; text-indent: -0.5in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0.5in 0 1.5in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font: 14pt Wingdings">&uml;</FONT>&#9;Any
bank as defined in section 3(a)(2) of the Securities Act of 1933, as amended (the &ldquo;<U>Act</U>&rdquo;), or any savings and
loan association or other institution as defined in section 3(a)(5)(A) of the Act whether acting in its individual or fiduciary
capacity; any broker or dealer registered pursuant to section 15 of the Securities Exchange Act of 1934; any insurance company
as defined in section 2(13) of the Act; any investment company registered under the Investment Company Act of 1940 or a business
development company as defined in section 2(a)(48) of that Act; Small Business Investment Company licensed by the U.S. Small Business
Administration under section 301(c) or (d) of the Small Business Investment Act of 1958; any plan established and maintained by
a state, its political subdivisions or any agency or instrumentality of a state or its political subdivisions for the benefit of
its employees, if such plan has total assets in excess of $5,000,000; employee benefit plan within the meaning of the Employee
Retirement Income Security Act of 1974 if the investment decision is made by a plan fiduciary, as defined in section 3(21) of such
Act, which is either a bank, savings and loan association, insurance company or registered investment adviser, or if the employee
benefit plan has total assets in excess of $5,000,000 or, if a self-directed plan, with investment decisions made solely by persons
that are accredited investors<FONT STYLE="font-size: 10pt">.</FONT></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0.5in 0 1.5in; text-align: justify; text-indent: -0.5in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0.5in 0 1.5in; text-align: center; text-indent: -0.5in"><B><I>The
remainder of this page is intentionally left blank</I></B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

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<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><I>If the Purchaser is an INDIVIDUAL, or if
the Purchasers are INDIVIDUALS who have purchased as JOINT TENANTS, as JOINT TENANTS with RIGHT OF SURVIVORSHIP, as TENANTS IN
COMMON, or as COMMUNITY PROPERTY:</I></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 264px; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><U>Dr. Allen Kahn</U></P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Print Names(s)</P></TD>
    <TD STYLE="width: 252px; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">___________________________</P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Social Security Number(s)</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">/s/ Dr. Allen Kahn</P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Signature(s) of Investor(s)</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">___________________________</P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Joint Signature</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</FONT></P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Address</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><U>September 17, 2010</U></P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Date</P></TD></TR>
</TABLE>
<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><I>If the Purchaser is a PARTNERSHIP, CORPORATION,
TRUST, LIMITED LIABILITY COMPANY or LIMITED LIABILITY PARTNERSHIP:</I></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 263px; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">___________________________</P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Name of Partnership, Corporation,</P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Trust, Limited Liability Company</P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">or Limited Liability Partnership</P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Address:</P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P></TD>
    <TD STYLE="width: 253px; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">___________________________</P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Federal Taxpayer</P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Identification Number</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">By:___________________________</P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">___________________________</P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Name: ________________________</P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">State of Organization</P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-autospace: none">Title: ________________________</TD>
    <TD STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-autospace: none">&nbsp;</TD></TR>
</TABLE>
<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

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    <DIV STYLE="page-break-before: always; margin-top: 6pt">&nbsp;</DIV>
    <!-- Field: /Page -->

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">SUBSCRIPTION FOR A NOTE IN THE PRINCIPAL AMOUNT OF $273,500.00 AND
136,750 SHARES OF COMMON STOCK OF THE COMPANY ACCEPTED AND AGREED TO THIS 17<SUP>th</SUP> DAY OF SEPTEMBER , 2010.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">GREENMAN TECHNOLOGIES, INC.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">By: /s/ Charles E. Coppa</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-indent: 0.5in">Charles E. Coppa</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-indent: 0.5in">Chief Financial Officer</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: center">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: center">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: center">&nbsp;</P>

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    <!-- Field: /Page -->

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>EXHIBIT A</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>UNSECURED PROMISSORY NOTE</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>&nbsp;</B></P>

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    <DIV STYLE="margin-bottom: 6pt">&nbsp;</DIV>
    <!-- Field: /Page -->

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: center">&nbsp;</P>EXHIBIT 10.20

 

 

THIS NOTE HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE
“ACT”), OR APPLICABLE STATE SECURITIES LAWS. THIS NOTE HAS BEEN ACQUIRED FOR INVESTMENT AND NOT WITH A VIEW
TO ITS DISTRIBUTION OR RESALE, AND MAY NOT BE SOLD, PLEDGED, OR OTHERWISE TRANSFERRED WITHOUT AN EFFECTIVE REGISTRATION STATEMENT
UNDER THE ACT AND APPLICABLE STATE SECURITIES LAWS, OR AN OPINION OF COUNSEL SATISFACTORY TO THE DEBTOR TO THE EFFECT THAT SUCH
REGISTRATION IS NOT REQUIRED.

 

 

UNSECURED PROMISSORY NOTE

 

	$273,500.00	September 17, 2010

 

FOR VALUE RECEIVED,
the undersigned, GreenMan Technologies, Inc., 7 Kimball Lane, Lynnfield, MA 01940, a Delaware corporation (the “Debtor”),
hereby promises to pay to Dr. Allen Kahn, Apt. 7808, 175 East Delaware Place, Chicago, IL 60611 (the “Holder”),
the principal sum of Two Hundred and Seventy Three Thousand and Five Hundred Dollars ($273,500.00) or such lesser principal amount
then outstanding, together with all accrued and unpaid interest thereon, by no later March 17, 2011. Interest on the principal
amount of this Note will accrue from and including the date hereof until and including the date such principal amount is paid,
at a rate equal to twelve percent (12%) per annum. Interest only shall be payable, in monthly installments commencing on October
1, 2010 in lawful money of the United States of America, in immediately available funds. Interest shall be computed on the basis
of a 360-day year and a 30-day month.

The outstanding balance
of this Note shall be rendered immediately due and payable, without the necessity of a Demand Notice, in case of any of the following
acts (individually, an “Event of Default”): (a) entry of any judgment or order against the Debtor for the payment of
money, if the same is not satisfied or enforcement proceedings are not stayed within sixty (60) days or if, within sixty (60) days
after the expiration of any such stay, the judgment or order is not dismissed, discharged or satisfied; (b) appointment of a receiver,
trustee, custodian or similar official, for the Debtor or any property or assets of the Debtor; (c) conveyance of any or all assets
to a trustee, mortgagee or liquidating agent or assignment for the benefit of creditors by the Debtor; or (d) commencement of any
proceeding under any law or any jurisdiction, now or hereafter in force, relating to bankruptcy, insolvency, renegotiation of outstanding
indebtedness, arrangement or otherwise to the relief of debtors or the readjustment of indebtedness, by or against the Debtor.
Notwithstanding anything contained herein to the contrary, upon the occurrence of an Event of Default, the entire outstanding amount
of principal and interest of this Note shall become immediately due and payable, without presentment, demand, protest or other
notice of any kind, all of which are hereby expressly waived.

The Debtor may prepay
this Note, in whole or in part, at any time prior to demand or acceleration, and without discount, premium or penalty. Any permitted
payment of principal by the Debtor will be accompanied by payment of all accrued and unpaid interest on the principal sum being
repaid.

     

     

    

The Debtor agrees
to pay all costs, charges and expenses incurred by the Holder and its assigns (including, without limitation, costs of collection,
court costs, and reasonable attorneys' fees and disbursements) in connection with the successful enforcement of the Holder's rights
under this Note (all such costs, charges and expenses being herein referred to as “Costs”). Presentment for
payment, demand, protest, notice of protest and notice of nonpayment are hereby waived. The Debtor agrees that any delay on the
part of the Holder in exercising any rights hereunder will not operate as a waiver of such rights, and further agrees that any
payments received hereunder will be applied first to Costs, then to interest, and the balance to principal. The Holder shall not
by any act, delay, omission, or otherwise be deemed to waive any of its rights or remedies, and no waiver of any kind to enforce
this Note shall be valid unless in writing and signed by the Holder. This Note is payable in any event and is not subject to offset
or reduction because of any other claims of Debtor against the Holder.

 

This Note applies to, inures
to the benefit of, and binds the successors and assigns of the parties hereto. This Note is not negotiable or transferable to any
other holder without the written consent of the Debtor. This Note is made under and shall be governed by the internal laws of the
Commonwealth of Massachusetts.

 

IN WITNESS WHEREOF, the
Debtor has executed this Note as an instrument under seal as of the date first written above.

 

DEBTOR

 

GREENMAN TECHNOLOGIES, INC.

 

By:  /s/ Charles E. Coppa

Charles E. Coppa

Chief Financial Officer

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