Document:

Exhibit 10.89

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    Coast

                               Security Agreement

Debtor:           GREENMAN TECHNOLOGIES, INC.,
                  a Delaware corporation

Address:          7 Kimball Lane, Bldg. A
                  Lynnfield, MA  01940

Date:             January 31, 2001

This Security Agreement ("Agreement") is entered into as of the above date at
Los Angeles, California, between the above-named debtor (the "Debtor"), whose
chief executive office is set forth above ("Debtor's Address"), and Coast
Business Credit, a division of Southern Pacific Bank ("Coast"), whose address is
12121 Wilshire Boulevard, Suite 1400, Los Angeles, California 90025.

1. DEFINITIONS OF OBLIGATIONS AND COLLATERAL; GRANT OF SECURITY INTEREST.

      1.1 Obligations. The term "Obligations" as used in this Agreement shall
mean and include each and all of the following: the obligation to pay and
perform when due all indebtedness, liabilities, obligations, guarantees,
covenants, agreements, warranties and representations of Debtor to Coast,
whether heretofore, now or hereafter existing, owing or arising; whether
primary, secondary, direct, absolute, contingent, fixed, secured or unsecured;
joint or several, monetary or non-monetary; and whether created pursuant to, or
caused by Debtor's breach of, this Agreement, or any other present or future
agreement or instrument, or created by operation of law or otherwise. The
Obligations include without limitation the obligations of Debtor under that
certain Continuing Guaranty in favor of Coast (the "Continuing Guaranty") with
respect to the Indebtedness, as defined in Section 1 of the Continuing Guaranty,
of GreenMan Technologies of Minnesota, Inc. and GreenMan Technologies, Inc. of
Georgia, and all extensions and renewals thereof.

      1.2 Collateral. As security and collateral for all Obligations, Debtor
hereby grants to Coast a continuing security interest in, and assigns to Coast,
all of Debtor's interest in the types of property described below, whether now
owned or hereafter acquired and wherever located, together with all proceeds
(including insurance proceeds), substitutions, accessions and products thereof
(collectively referred to as "Collateral"): All accounts, contract rights,
chattel paper, and instruments, and all other obligations now or hereafter owing
to Debtor (hereinafter sometimes collectively referred to as "Accounts") and all
right, title and interest of Debtor in, and all of Debtor's rights and remedies
with respect to, all goods, the sale or other disposition of which gives rise to
any Account, including, without limitation, all returned, reclaimed and
repossessed goods and all rights of stoppage in transit, replevin, reclamation,
and all rights as an unpaid vendor and all inventory, goods, merchandise,
materials, raw materials, work in process, finished goods, advertising,
packaging and shipping materials, supplies, and all other tangible personal
property which is held for sale or lease or furnished under contracts of service
or consumed in Debtor's business, including, without limitation, any and all of
the foregoing which are returned, repossessed, reclaimed or stopped in transit,
and all warehouse receipts and other documents or instruments now or hereafter
issued with respect to any of the foregoing; and all equipment, goods,
machinery, fixtures, trade fixtures, vehicles, furnishings, furniture, supplies,
materials, tools, machine tools, office equipment, appliances, apparatus, parts,
dies, jigs, and chattels; and all deposit accounts and general intangibles
(including, but not limited to, tax refunds, goodwill, name, drawings,
trademarks, blueprints. trade names, trade secrets, customer lists, patents,
patent applications, copyrights, security deposits, loan commitment fees,
royalties, licenses, processes, and all other rights, privileges and
franchises); and all investment property of Debtor; and all personal property of
Debtor which comes into Coast's possession, custody or control; and all tangible
and intangible personal property in which Coast now has or hereafter acquires a
security interest to secure any or all of the Obligations; and all
substitutions, additions and accessions to any or all of the foregoing items of

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Collateral; and all guaranties of and security for any and all of the foregoing;
and all books and records relating to any and all of the foregoing and the
equipment containing said books and records. Payment and performance of the
Obligations are collateralized by the Collateral and by any security interest
created in any other agreement now or hereafter existing between Coast and
Debtor unless such other agreement is a deed of trust or other security
instrument having real property or rents from real property as its subject
matter and expressly provides to the contrary.

2. REPRESENTATIONS, WARRANTIES AND COVENANTS OF DEBTOR.

      Debtor represents and warrants that each of the following representations
and warranties now is and hereafter will continue to be true and correct in all
respects and Debtor has and will timely perform each of the following covenants:

      2.1 Corporate Existence and Power. Debtor is and will continue to be, duly
authorized, validly existing and in good standing under the laws of the
jurisdiction of its incorporation. Debtor is and will continue to be qualified
and licensed to do business in all jurisdictions in which the nature of the
business transacted by it, or the ownership or leasing of its property, makes
such qualification or licensing necessary, and Debtor has and will continue to
have all requisite power and authority to carry on its business as it is now, or
may hereafter be, conducted.

      2.2 Authority. Debtor is, and will continue to be, authorized to enter
into, to grant security interests in its property pursuant to, and to perform
its obligations under, this Agreement, and all other instruments and
transactions contemplated herein. The execution, delivery and performance by
Debtor of this Agreement, and all other instruments and transactions
contemplated herein have been validly authorized, are enforceable against the
Debtor in accordance with their terms, and do not violate any law or any
provision of, and are not grounds for acceleration under, any agreement,
indenture, note or instrument which is binding upon Debtor, or any of its
property, including, without limitation, Debtor's Certificate of Incorporation,
ByLaws and any Shareholder Agreements.

      2.3 Name; Trade Names and Styles. Debtor has set forth above its correct
name. All prior names of Debtor and all fictitious names, trade names and trade
styles by which Debtor has been, or is now, known are set forth on the Schedule
2.3 attached hereto. Debtor shall provide Coast with fifteen (15) days' advance
written notice prior to doing business under any other name, fictitious name,
trade name or trade style. Debtor has complied, and will hereafter comply, with
all laws relating to the conduct of business under, the ownership of property
in, and the renewal or continuation of the right to use, a corporate, fictitious
or trade name or trade style.

      2.4 Place of Business; Location of Collateral. Debtor's chief executive
office is, and will continue to be, located at Debtor's Address and all of
Debtor's books and records, including, but not limited to, the books and records
relating to Debtor's Accounts, are and will be maintained at Debtor's Address
unless and until Coast shall otherwise consent in writing. In addition to
Debtor's Address, Debtor has places of business and Collateral is located only
at the locations set forth on the Schedule 2.4 attached hereto. Debtor will
provide Coast with at least fifteen (15) days advance written notice if Debtor
moves any of the Collateral, or obtains any additional sites for the conduct of
Debtor's business or the location of any Collateral.

      2.5 Title to Collateral; Liens. Debtor is now, and will at all times
hereafter be, the lawful and sole owner of all the Collateral. With the
exception of the security interest granted Coast, the Collateral now is and will
remain free and clear of any and all liens, charges, security interests,
encumbrances and adverse claims. Coast now has, and will have, a perfected and
enforceable first priority security interest in all of the Collateral, and
Debtor will at all times defend Coast and the Collateral against all claims of
others. None of the Collateral now is or will be affixed to any real property in
such a manner, or with such intent, as to constitute a fixture thereto. Debtor
is not and will not become a lessee under any real property lease pursuant to
which the lessor may obtain any rights in any of the Collateral and no such
lease now prohibits, restrains, impairs or will prohibit, restrain or impair
Debtor's right to remove any Collateral from the leased premises. Whenever any
Collateral is located upon premises in which any third party has an interest
(whether as owner, mortgagee. beneficiary under a deed of trust, lien or
otherwise), Debtor shall, whenever requested by Coast, use its best efforts to
cause such third party to execute and deliver to Coast, in form acceptable to
Coast, whatever waivers and subordinations that Coast specifies, so as to ensure
that Coast's rights in the Collateral are, and will continue to be, superior to
the rights of any such third party. Debtor will keep in full force and effect,
and will comply with all the terms of, any lease of real property where any of
the Collateral now or in the future may be located.

      2.6 Maintenance of Collateral. Debtor has maintained and will maintain the
Collateral and all of its assets in good working condition, at Debtor's expense.
Debtor will not use the Collateral or any of its other properties for any
unlawful purpose and will not secrete or abandon the Collateral. Debtor will
immediately advise Coast in writing of any material loss or depreciation of the
Collateral.

      2.7 Books and Records. Debtor has maintained and will maintain at Debtor's
Address complete and accurate books and records comprising an accounting system
in accordance with generally accepted accounting principles.

      2.8 Financial Condition and Statements. All financial statements now or
hereafter delivered to Coast have been, and will be, prepared in conformity with
generally accepted accounting principles and now and hereafter will completely
and accurately reflect the financial condition of

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Debtor, at the times and for the periods therein stated. Since the last date
covered by any such statement, there has been no material adverse change in the
financial condition, operations or any other status of the Debtor. Debtor is now
and will continue to be solvent in both the "equity" and "bankruptcy" sense.
Debtor will deliver to Coast a copy of all financial statements prepared with
respect to Debtor no later than five (5) days after the preparation or receipt
thereof by Debtor. Debtor will cause to be prepared, and will provide Coast (i)
within forty-five (45) days following the end of each fiscal quarter, complete
quarterly financial statements, and (ii) within ninety (90) days following the
end of Debtor's fiscal year, complete annual financial statements, certified by
independent certified public accountants acceptable to Coast.

      2.9 Tax Returns and Payments; Pension Contributions. Debtor has timely
filed, and will timely file, all tax returns and reports required by foreign,
federal, state or local law. Debtor has timely paid, and will timely pay, all
foreign, federal, state and local taxes, assessments, deposits and contributions
now or hereafter owed by Debtor. Debtor may defer payment of any contested taxes
provided that Debtor (i) in good faith contests Debtor's obligation to pay such
taxes by appropriate proceedings promptly and diligently instituted and
conducted, (ii) notifies Coast in writing of the commencement of and any
material development in such proceedings, and (iii) posts bonds or takes any
other steps required to keep such contested taxes from becoming a lien against
or charge upon any of the Collateral or other properties of Debtor. Debtor
shall, at all times, utilize the services of an outside payroll service
providing for the automatic deposit of all payroll taxes payable by Debtor.
Debtor is unaware of any claims or adjustments proposed for any of Debtor's
prior tax years which could result in additional taxes becoming due and payable
by Debtor. Debtor has paid, and shall continue to pay all amounts necessary to
fund all present and future pension, profit sharing and deferred compensation
plans in accordance with their terms, and Debtor has not and will not withdraw
from participation in, permit partial or complete termination of, or permit the
occurrence of any other event with respect to, any such plan which could result
in any liability of Debtor, including, without limitation, any liability to the
Pension Benefit Guaranty Corporation or its successors or any other governmental
agency. When requested, Debtor will furnish Coast with proof satisfactory to
Coast of Debtor's making the payment or deposit of all such taxes and
contributions, such proof to be delivered within five (5) days after the due
date established by law for each such payment or deposit. If Debtor fails or is
unable to pay or deposit such taxes or contributions, Coast may, but is not
obligated to, pay the same and treat all such advances as additional Obligations
of Debtor. Such advances shall bear interest at the highest interest rate
applicable to any of the Obligations.

      2.10 Compliance with Law. Debtor has complied, and will comply, with all
provisions of all foreign, federal, state and local laws and regulations
relating to Debtor, including, but not limited to, those relating to Debtor's
ownership of real or personal property, conduct and licensing of Debtor's
business and employment of Debtor's personnel.

      2.11 Litigation. There is no claim, suit, litigation, proceeding or
investigation pending or threatened by or against or affecting Debtor in any
court or before any regulatory commission, board or other governmental agency
(or any basis therefor known to Debtor) which might result, either separately or
in the aggregate, in any adverse change in the business or condition of Debtor,
or in any impairment in the ability of Debtor to carry on its business in
substantially the same manner as it is now being conducted. Debtor will
immediately inform Coast in writing of any claim, proceeding, litigation or
investigation hereafter threatened or instituted by or against Debtor.

      2.12 Continuing Effect. All representations, warranties and covenants of
Debtor contained in this Agreement and any other agreement with Coast shall be
true and correct at the time of the effective date of each such agreement and
shall be deemed continuing and shall remain true, correct and in full force and
effect until payment and satisfaction in full of all of the Obligations, and
Debtor acknowledges that Coast is and will be expressly relying on such
representations, warranties and covenants.

3. ADDITIONAL DUTIES OF DEBTOR.

      3.1 Insurance. Debtor shall, at all times, at Debtor's expense, insure all
of the Collateral and carry such other business insurance with insurers
acceptable to Coast. in such form and amounts as Coast may require. All such
insurance policies shall name Coast as an additional loss payee, shall provide
that proceeds payable thereunder be payable directly to Coast unless written
authority to the contrary is obtained. and shall also provide that no act or
default of Debtor or any other person shall affect the right of Coast to recover
thereunder and shall contain a lenders loss payee endorsement in form acceptable
to Coast. Upon receipt of the proceeds of any such insurance, Coast shall apply
such proceeds in reduction of the Obligations as Coast shall determine in its
sole and absolute discretion. If Debtor fails to provide or pay for any such
insurance, Coast may, but is not obligated to, procure the same at Debtor's
expense. Debtor agrees to deliver to Coast, promptly as rendered, copies of all
reports made to all insurance companies.

      3.2 Reports. At its expense, Debtor shall report, in form satisfactory to
Coast, such information as Coast may from time to time specify regarding Debtor
or the Collateral: such reports shall be rendered with such frequency as Coast
may specify. All reports furnished Coast shall be complete and accurate in all
respects.

      3.3 Access to Collateral, Books and Records. At any time Coast, or its
agents, shall have immediate access to the Collateral and any other property of
Debtor, wherever located. Coast shall have the right to audit and copy Debtor's

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books and records and accounts including accountants' reports wherever located
(hereinafter collectively the "Records"). Debtor hereby irrevocably authorizes
and directs any of the officers, agents, accountants and attorneys having
possession or control of any of the Records (including computer records) to
physically deliver or make same available to Coast upon Coast's request. Debtor
waives the benefit of any accountant-client privilege or other evidentiary
privilege precluding or limiting the disclosure, divulgence or delivery of any
of the Records. Coast shall have the right to possession of, or to move to the
premises of Coast or any agent of Coast, for so long as Coast may desire, all or
any part of the Records.

      3.4 Negative Covenants. Debtor shall not, without Coast's prior written
consent, do any of the following:

            (i) merge or consolidate with another corporation or entity, except
in a transaction in which (A) the shareholders of the Debtor hold at least 50%
of the common stock and all other capital stock of the surviving corporation
immediately after such merger or consolidation, and (B) the Debtor is the
surviving corporation;

            (ii) acquire any assets, except in a transaction or a series of
transactions not involving the payment of an aggregate amount in excess of
$100,000 each fiscal year;

            (iii) enter into any other transaction outside the ordinary course
of business;

            (iv) sell or transfer any Collateral, except for the sale of
obsolete or unneeded Equipment in the ordinary course of business;

            (v) store any Inventory or other Collateral with any warehouseman or
other third party;

            (vi) make any loans of any money or other assets, except (A)
advances to customers or suppliers in the ordinary course of business, (B)
travel advances, employee relocation loans and other employee loans and advances
in the ordinary course of business, and (C) loans to employees, officers and
directors for the purpose of purchasing equity securities of the Debtor;

            (vii) incur or permit to exist any debts or liability resulting in
monthly expenses in excess of $100,000 per month in the aggregate;

            (viii) except for the Continuing Guaranty, guarantee or otherwise
become liable with respect to the obligations of another party or entity;

            (ix) pay or declare any dividends on Debtor's stock (except for
dividends payable solely in stock of Debtor);

            (x) redeem, retire, purchase or otherwise acquire, directly or
indirectly, any of Debtor's stock, except that Debtor may repurchase stock owned
by employees, directors and consultants of Debtor pursuant to employment,
consulting or other stock restriction agreements at such time as any such
employee, director or consultant terminates his or her affiliation with the
Debtor, for an aggregate purchase price not to exceed $100,000 in any fiscal
year;

            (xi) make any change in Debtor's capital structure which would have
a material adverse effect on Debtor or on the prospect of repayment of the
Obligations; provided, however, that Debtor may convert 320,000 shares of its
Series B Preferred Stock currently owned by Republic Services of Georgia, LP, a
Georgia limited partnership (as successor to United Waste Service, Inc.)
("Republic") for shares of its Common Stock pursuant to the terms of that
certain Asset Purchase Agreement, dated September 4, 1998, between United Waste
Service, Inc., on the one hand, and Debtor and Greenman Acquisition Corporation,
a Delaware corporation, on the other hand, as amended by that certain Amendment
to the Asset Purchase Agreement, dated August 21, 2000 (the "Amendment"),
between Debtor and Republic (collectively, the "Purchase Agreement").
Notwithstanding the foregoing, Debtor agrees not to exercise, without Coast's
prior written consent, its option pursuant to the Amendment to pay Republic
$1,5000,000 cash as part of the conversion price as set forth in Section 1.2 of
the Amendment; or

            (xii) dissolve or elect to dissolve.

      Transactions permitted by the foregoing provisions of this Section are
only permitted if no Default or Event of Default would occur as a result of such
transaction.

      3.5 Notification of Changes. Debtor will promptly notify Coast in writing
of any change of its officers. directors, or key employees, the death of any
partner or joint venturer, any purchase out of the regular course of Debtor's
business and any adverse or material change in the business or financial affairs
of Debtor.

      3.6 Litigation Cooperation. Should any suit or proceeding be instituted by
or against Coast with respect to any Collateral or for the collection or
enforcement of any Account, or in any manner relating to Debtor, Debtor shall,
without expense to Coast, and wherever and whenever designated by Coast, make
available Debtor and its officers, employees and agents and Debtor's Records to
the extent that Coast may deem necessary in order to prosecute or defend any
such suit or proceeding.

      3.7 Execute Additional Documentation. Debtor agrees, at its expense, on
demand by Coast, to execute all documents in form satisfactory to Coast, as
Coast, in its sole discretion, may deem necessary or useful in order to perfect
and maintain Coast's perfected first-priority or any other security interest in
the Collateral, and in order to fully

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consummate all of the transactions contemplated under this Agreement.

4. EVENTS OF DEFAULT AND REMEDIES.

      4.1 Events of Default. If any of the following events shall occur, such an
occurrence shall constitute an "Event of Default" and Debtor shall provide Coast
with immediate written notice thereof: (a) Any warranty, representation,
statement, report or certificate made or delivered to Coast by Debtor or any of
Debtor's officers, employees or agents now or hereafter shall be incorrect,
false, untrue or misleading in any material respect; or (b) Debtor shall fail to
perform when due any term or condition contained in this Agreement or any other
agreement between Coast and Debtor; or (c) Debtor shall fail to pay or perform
any other Obligation when due; or (d) Any loss, theft, or substantial damage to,
or destruction of, any or all of the Collateral (unless within five (5) days
after the occurrence of any such event, Debtor furnishes Coast with evidence
satisfactory to Coast that the amount of any such loss, theft, damage to or
destruction of the Collateral is fully insured under policies designating Coast
as the exclusive additional named insured); or (e) A material impairment of the
prospect of payment or performance of the Obligations or a material impairment
of the value of the Collateral or any impairment in the priority of Coast's
security interest; or (f) Any event shall arise which may result or actually
results in the acceleration of the maturity of the indebtedness of Debtor to
others under any loan or other agreement or undertaking; or (g) Any levy,
assessment, attachment, seizure, lien or encumbrance for any cause or reason
whatsoever, upon all or any part of the Collateral or any other asset of Debtor
(unless discharged by payment, release or fully bonded against not more than ten
(10) days after such event has occurred); or (h) Dissolution, termination of
existence, insolvency or business failure of Debtor; or appointment of a
receiver, trustee or custodian, for all or any part of the property of,
assignment for the benefit of creditors by, or the commencement of any
proceeding by or against, Debtor under any reorganization, bankruptcy,
insolvency, arrangement, readjustment of debt, dissolution or liquidation law or
statute of any jurisdiction, now or hereafter in effect; or entry of a court or
governmental order which enjoins, restrains or in any way prevents Debtor from
conducting all or any part of its business; or (i) A notice of lien, levy or
assessment is filed of record with respect to any of Debtor's assets by the
United States or any department, agency or instrumentality thereof, or by any
state, county, municipal or other governmental agency, or if any taxes or debts
now or hereafter owing to any one or more of them becomes a lien upon all or any
of the Collateral or any other assets of Debtor (other than a lien for real
property taxes which are not yet due and payable); or (j) Death, insolvency or
incompetency of any guarantor of the Obligations; appointment of a conservator
or guardian of the person of any such guarantor; appointment of a conservator,
guardian, trustee, custodian or receiver of all or any part of the assets,
property or estate of, any such guarantor; revocation or termination of, or
limitation of liability upon, any guaranty of the Obligations; or commencement
of proceedings by or against any guarantor or surety for Debtor under any
bankruptcy or insolvency law; or (k) Debtor makes any payment on account of any
indebtedness or obligation which has been subordinated to the Obligations or if
any person who has subordinated such indebtedness or obligations terminates or
in any way limits his subordination agreement; or (l) Debtor shall generally not
pay its debts as they become due or shall enter into any agreement (whether
written or oral), or offer to enter into any such agreement, with all or a
significant number of its creditors regarding any moratorium or other indulgence
with respect to its debts or the participation of such creditors or their
representatives in the supervision, management or control of the business of
Debtor; or Debtor shall conceal, remove or transfer any part of its property,
with intent to hinder, delay or defraud its creditors, or make or suffer any
transfer of any of its property which may be fraudulent under any bankruptcy,
fraudulent conveyance or similar law, or shall make any transfer of its property
to or for the benefit of any creditor at a time when other creditors similarly
situated have not been paid; or (m) Coast at any time, acting in good faith and
in a commercially reasonable manner, deems itself insecure because of (i) the
occurrence of an event prior to the effective date hereof of which Coast had no
knowledge on the effective date or (ii) the occurrence of an event on or
subsequent to the effective date.

      4.2 Remedies. Upon the occurrence of any Event of Default, and at any time
thereafter, Coast, at its option, and without notice or demand of any kind (all
of which are hereby expressly waived by Debtor), may do any one or more of the
following: (a) Accelerate and declare all or any part of the Obligations to be
immediately due, payable, and performable notwithstanding any deferred or
installment payments allowed by any instrument evidencing or relating to any
Obligation; (b) Take possession of any or all of the Collateral wherever it may
be found, and for that purpose Debtor hereby authorizes Coast without judicial
process to enter onto any of the Debtor's premises without hindrance to search
for, take possession of, keep, store, or remove any of the Collateral and remain
on such premises or cause a custodian to remain thereon in exclusive control
thereof without charge for so long as Coast deems necessary in order to complete
the enforcement of its rights under this Agreement or any other agreement;
provided, however, that should Coast seek to take possession of any or all of
the Collateral by Court process, Debtor hereby irrevocably waives: (i) any bond
and any surety or security relating thereto required by any statute, court rule
or otherwise as an incident to such possession; (ii) any demand for possession
prior to the commencement of any suit or action to recover possession thereof;
and (iii) any requirement that Coast retain possession of and not dispose of any
such Collateral until after trial or final judgment; (c) Require Debtor to
assemble any or all of the Collateral and make it available to Coast at a place
or places to be designated by Coast which are reasonably convenient to Coast and
Debtor, and to remove the Collateral to such locations as Coast may deem
advisable; (d) Complete processing, manufacturing or repair of all or any
portion of the Collateral prior to a disposition thereof and, for such purpose
and for the purpose of removal, Coast shall have the right to use Debtor's
premises, vehicles, hoists, lifts, cranes, equipment

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and all other property without charge. Without limiting any security interest
granted Coast in other provisions of this Agreement or any other agreement, for
the purpose of completing manufacturing, processing or repair of Collateral and
the disposition thereof, Coast is hereby granted a security interest in, and
Coast and any purchaser from Coast may use without charge, all of the Debtor's
plant, machinery, equipment, labels, licenses, processes, patents, patent
applications, copyrights, names, trade names, trademarks, trade secrets, logos,
advertising material and all other assets, and may also utilize all of Debtor's
rights under any license or franchise agreement; (d) Sell, ship, reclaim, lease
or otherwise dispose of all or any portion of the Collateral in its condition at
the time Coast obtains possession or after further manufacturing, processing or
repair, at any one or more public and/or private sales (including execution
sales), in lots or in bulk, for cash, exchange or other property or on credit
and to adjourn any such sale from time to time without notice other than oral
announcement at the time scheduled for sale. Coast shall have the right to
conduct such disposition on Debtor's premises without charge for such time or
times as Coast deems fit, or on Coast's premises, or elsewhere and the
Collateral need not be located at the place of disposition. Coast may directly
or through any affiliated company purchase or lease any Collateral at any such
public disposition and if permissible under applicable law, at any private
disposition. Any sale or other disposition of Collateral shall not relieve
Debtor of any liability Debtor may have if any Collateral is defective as to
title or physical condition or otherwise at the time of sale; (f) Demand payment
of, and collect any Accounts and general intangibles comprising part or all of
the Collateral and, in connection therewith, Debtor irrevocably authorizes Coast
to endorse or sign Debtor's name on all collections, receipts, instruments and
other documents, to take possession of and open mail addressed to Debtor and
remove therefrom payments made with respect to any item of the Collateral or
proceeds thereof, and, in Coast's sole discretion, to grant extensions of time
to pay, compromise claims and settle Accounts and the like for less than face
value; (g) Demand and receive possession of any of Debtor's federal and state
income tax returns and the Records utilized in the preparation thereof or
referring thereto. All attorneys' fees, expenses, costs, liabilities and
obligations incurred by Coast with respect to the foregoing shall be added to
and become part of the Obligations, shall be due on demand, and shall bear
interest at a rate equal to the highest interest rate applicable to any of the
Obligations.

      4.3 Standards for Determining Commercial Reasonableness. Debtor and Coast
agree that the following conduct by Coast with respect to any disposition of
Collateral shall conclusively be deemed commercially reasonable (but other
conduct by Coast, including, but not limited to, Coast's use in its sole
discretion of other or different times, places and manners of noticing and
conducting any disposition of Collateral shall not be deemed unreasonable): Any
public or private disposition as to which on no later than the fifth calendar
day prior thereto written notice thereof is mailed or personally delivered to
Debtor and, with respect to any public disposition, on no later than the fifth
calendar day prior thereto notice thereof describing in general non-specific
terms, the Collateral to be disposed of is published once in a newspaper of
general circulation in the county where the sale is to be conducted, at any
place designated by Coast, with or without the Collateral being present, and
which commences at any time between 8:00 a.m. and 5:00 p.m. Without limiting the
generality of the foregoing, Debtor expressly agrees that, with respect to any
disposition of Accounts, instruments and general intangibles (collectively
"Receivables"), it shall be commercially reasonable for Coast to direct any
prospective acquirer thereof to ascertain directly from Debtor any and all
information (and Coast shall not be required to maintain records of, or answer
any inquiries) concerning the Receivables offered for disposition, including,
but not limited to, the terms of payment, aging and delinquency, if any, of the
Receivables, the financial condition of any obligor or account debtor thereon or
guarantor thereof, any collateral therefor and the condition and location of the
goods, if any, that are the subject of any of the Receivables.

      4.4 Application of Proceeds. All proceeds realized as the result of any
disposition of the Collateral shall be applied by Coast first to the costs,
expenses, liabilities, obligations and attorneys' fees incurred by Coast in the
exercise of its rights under this Agreement, second to the interest due upon any
of the Obligations and third to the principal of the Obligations in any order
determined by Coast in its sole discretion. The surplus, if any, shall be paid
to Debtor; if any deficiency shall arise, Debtor shall remain liable to Coast
therefor. If, as a result of the disposition of any of the Collateral, Coast
directly or indirectly enters into a credit transaction with any third party,
Coast shall have the option, exercisable at any time, in its sole discretion, of
either reducing the Obligations by the principal amount of such credit
transaction or deferring the reduction thereof until the actual receipt by Coast
of cash therefor from such third party.

      4.5 Remedies Cumulative. In addition to the rights and remedies set forth
in this Agreement, Coast shall have all the other rights and remedies accorded a
secured party under the California Uniform Commercial Code and under any and all
other applicable laws and in any other instrument or agreement now or hereafter
entered into between Coast and Debtor and all of such rights and remedies are
cumulative and none is exclusive. Exercise or partial exercise by Coast of one
or more of its rights or remedies shall not be deemed an election, nor bar Coast
from subsequent exercise or partial exercise of any other rights or remedies.
The failure or delay of Coast to exercise any rights or remedies shall not
operate as a waiver thereof, but all rights and remedies shall continue in full
force and effect until all of the Obligations have been fully paid and
performed.

5. POWER OF ATTORNEY.

      Debtor grants to Coast an irrevocable power of attorney coupled with an
interest, authorizing and permitting Coast (acting through any of its employees,
attorneys or agents) at any time after the occurrence of an Event of Default, at
its

                                       6
<PAGE>

Coast Business Credit Security Agreement                      Security Agreement
--------------------------------------------------------------------------------

option, but without obligation, with or without notice to Debtor, and at
Debtor's expense, to do any or all of the following, in Debtor's name or
otherwise: (a) Execute on behalf of Debtor any documents that Coast may, in its
sole and absolute discretion, deem advisable in order to perfect, maintain or
improve Coast's security interest in the Collateral or other real or personal
property intended to constitute Collateral, or in order to exercise a right of
Debtor or Coast, or in order to fully consummate all the transactions
contemplated under this Agreement, and all other present and future agreements;
(b) Execute on behalf of Debtor any document exercising, transferring or
assigning any option to purchase, sell or otherwise dispose of or to lease (as
lessor or lessee) any real or personal property which is part of Coast's
Collateral or in which Coast has an interest; (c) Execute on behalf of Debtor,
any invoices relating to any Account, any draft against any Account debtor and
any notice to any Account debtor, any proof of claim in bankruptcy, any Notice
of Lien, claim of mechanic's, materialman's or other lien, or assignment or
satisfaction of mechanic's, materialman's or other lien; (d) Take control in any
manner of any cash or non-cash items of payment or proceeds of Collateral;
endorse the name of Debtor upon any instruments, or documents, evidence of
payment or Collateral that may come into Coast's possession: (e) To receive and
open all mail addressed to Debtor; and to notify the Post Office authorities to
change the address for the delivery of mail addressed to Debtor to such other
address as Coast may designate, including, but not limited to, Coast's own
address; Coast shall turn over to Debtor all of such mail not relating to the
Collateral; (f) Endorse all checks and other forms of remittances received by
Coast "Pay to the Order of Coast Business Credit Corporation," or in such other
manner as Coast may designate; (g) Pay, contest or settle any lien, charge,
encumbrance, security interest and adverse claim In or to any of the Collateral,
or any judgment based thereon, or otherwise take any action to terminate or
discharge the same; (h) Grant extensions of time to pay, compromise claims and
settle Accounts and the like for less than face value and execute all releases
and other documents in connection therewith; (i) Pay any sums required on
account of Debtor's taxes or to secure the release of any liens therefor, or
both; (j) Settle and adjust, and give releases of, any insurance claim that
relates to any of the Collateral and obtain payment therefor; (k) Take any
action or pay any sum required of Debtor pursuant to this Agreement and any
other present or future agreements. Any and all sums paid and any and all costs,
expenses, liabilities, obligations and attorneys' fees incurred by Coast with
respect to the foregoing shall be added to and become part of the Obligations,
shall be payable on demand, and shall bear interest at a rate equal to the
highest interest rate applicable to any of the Obligations. In no event shall
Coast's rights under the foregoing power of attorney or any of Coast's other
rights under this Agreement be deemed to indicate that Coast is in control of
the business, management or properties of Debtor.

6. TERM.

      This Agreement shall continue in effect until all of the Obligations have
been paid and performed in full and all agreements between Coast and Debtor have
been terminated.

7. NOTICES.

      7.1 All notices to be given hereunder shall be in writing and shall be
served either personally or by depositing the same in the United States mail,
postage prepaid, by regular first class mail, or by certified mail, return
receipt requested, addressed to Coast or Debtor at the addresses shown above, or
at any other address as shall be designated by one party in a written notice to
the other party. Any such notice shall be deemed to have been given upon
delivery in the case of notices personally delivered to Debtor or to an officer
of Coast, or at the expiration of two (2) business days following the deposit
thereof in the United States mail, with postage prepaid. If Debtor is a
corporation, the service upon any member of the Board of Directors, of finer,
employee or agent shall constitute service upon the corporation.

8. GENERAL WAIVERS.

      The failure of Coast at any time or times hereafter to require Debtor to
strictly comply with any of the provisions of this Agreement or any other
present or future agreement between Debtor and Coast shall not waive or diminish
any right of Coast thereafter to demand and receive strict compliance therewith.
Any waiver of any default shall not waive or affect any other default, whether
prior or subsequent thereto. None of the provisions of this Agreement or other
agreement now or hereafter executed by Debtor and delivered to Coast shall be
deemed to have been waived by any act or knowledge of Coast or its agents or
employees, but only by a specific written waiver signed by an officer of Coast
and delivered to Debtor. Debtor waives the benefit of all statute(s) of
limitations in any action or proceeding based upon or arising out of this
Agreement or any other present or future instrument or agreement between Coast
and Debtor. Debtor waives any and all notices or demands which Debtor might be
entitled to receive with respect to this Agreement, or any other agreement by
virtue of any applicable law. Debtor hereby waives demand, protest, notice of
protest and notice of default or dishonor, notice of payment and nonpayment,
release, compromise, settlement, extension or renewal of any commercial paper,
instrument, Account, general intangible, document or guaranty at any time held
by Coast on which Debtor is or may in any way be liable, and notice of any
action taken by Coast unless expressly required by this Agreement. Debtor hereby
ratifies and confirms whatever Coast may do pursuant to this Agreement and
agrees that Coast shall not be liable for (a) the safekeeping of the Collateral
or any loss or damage thereto, or diminution in value thereof, from any cause
whatsoever, or (b) any act or omission of any carrier, warehouseman, bailee,
forwarding agent or other person, or (c) any act of commission or any omission
by Coast or its officers,

                                       7
<PAGE>

Coast Business Credit Security Agreement                      Security Agreement
--------------------------------------------------------------------------------

employees, agents, or attorneys, or any of its or their errors of judgment or
mistakes of fact or law.

9. ATTACHMENT WAIVERS.

      To the extent that Coast, in its sole and absolute discretion. determines,
prior to the disposition of all of the Collateral, that the amount to be
realized by Coast from the disposition of all of the Collateral may be less than
the amount of the Obligations, and to the full extent of any such anticipated
deficiency, Debtor waives the benefit of Section 483.010 (b) of the California
Code of Civil Procedure and of any and all other statutes requiring Coast to
first resort to and exhaust all of the Collateral before seeking or obtaining
any attachment remedy against Debtor, and Debtor expressly agrees that, to the
extent of such anticipated deficiency, Coast shall have all of the rights of an
unsecured creditor, including, but not limited to, the right of Coast, prior to
the disposition of all of the Collateral, to obtain a temporary protective order
and writ of attachment or other available remedy. Coast shall have no liability
to Debtor if the actual deficiency realized by Coast is less than the
anticipated deficiency on the basis of which Coast obtained a temporary
protective order or writ of attachment. In the event Coast should seek a
temporary protective order, or writ of attachment, or both, Debtor hereby
irrevocably waives any bond and any surety or security relating thereto required
by any statute, court rule or otherwise as an incident or condition precedent to
the issuance of any temporary protective order or writ of attachment.

10. ATTORNEYS' FEES AND COSTS.

      Debtor shall forthwith pay to Coast the amount of all attorneys' fees and
all filing, recording, publication, search and other costs incurred by Coast
pursuant to this Agreement, or any other present or future agreement or in
connection with any transaction contemplated hereby, or with respect to the
Collateral or the defense or enforcement of its interests (whether or not Coast
files a lawsuit against Debtor). Without limiting the generality of the
foregoing, Debtor shall, with respect to each and all of the foregoing, pay all
attorneys' fees and costs Coast incurs in order to: obtain legal advice;
enforce, or seek to enforce, any of its rights; prosecute actions against, or
defend actions by, Account debtors; commence, intervene in, respond to, or
defend any action or proceeding; initiate any complaint to be relieved of the
effect of the automatic stay in bankruptcy in order to commence or continue any
foreclosure or other disposition of the Collateral or to commence, defend or
continue any action or other proceeding in or out of bankruptcy against Debtor
or relating to the Collateral; file or prosecute a claim or right in any action
or proceeding, including, but not limited to, any probate claim, bankruptcy
claim, third-party claim, secured creditor claim or reclamation complaint;
examine, audit, count, test, copy, or otherwise inspect any of the Collateral or
any of Debtor's books and records; or protect, obtain possession of, lease,
dispose of, or otherwise enforce any security interest in or lien on, the
Collateral or represent Coast in any litigation with respect to Debtor's
affairs. If either Coast or Debtor files any lawsuit against the other
predicated on a breach of this Agreement, the prevailing party in such action
shall be entitled to recover its costs and attorneys' fees, including, but not
limited to, attorneys' fees and costs incurred in the enforcement of, execution
upon or defense of any order, decree, award or judgment. All attorneys' fees and
costs to which Coast may be entitled pursuant to this Paragraph shall
immediately become part of Debtor's Obligations, shall be due on demand, and
shall bear interest at a rate equal to the highest interest rate applicable to
any of the Obligations.

11. LIMITATION OF ACTIONS.

      Debtor agrees that any claim or cause of action by Debtor against Coast,
its directors, officers, employees, agents, accountants or attorneys, based
upon, arising from, or relating to this Agreement, or any other present or
future agreement, or any other transaction contemplated hereby or thereby or
relating hereto or thereto, or any other matter, cause or thing whatsoever,
occurred, done, omitted or suffered to be done by Coast, its directors,
officers, employees, agents, accountants or attorneys, relating in any way to
Debtor, shall be barred unless asserted by Debtor by the commencement of an
action or proceeding in a court of competent jurisdiction by the filing of a
complaint within six (6) months after the first act, occurrence or omission upon
which such claim or cause of action, or any part thereof, is based, and the
service of a summons and complaint on an officer of Coast, or on any other
person authorized to accept service on behalf of Coast, within thirty (30) days
thereafter. Debtor agrees that such six month period of time is a reasonable and
sufficient time for Debtor to investigate and act upon any such claim or cause
of action. The six month period provided herein shall not be waived, tolled, or
extended except by the written consent of Coast in its sole and absolute
discretion. This provision shall survive any termination, however arising, of
this Agreement, and any other present or future agreement.

12. GENERAL PROVISIONS.

      12.1 Severability. Should any provision, clause or condition of this
Agreement be held by any court of competent jurisdiction to be void or
unenforceable, such defect shall not affect the remainder of this Agreement.

      12.2 Integration. This Agreement and such other written agreements,
documents and instruments as may be executed in connection herewith shall be
construed as the entire and complete agreement between Debtor and Coast and
shall supersede all prior negotiations, all of which are merged and integrated
herein.

      12.3 Amendment. The terms and provisions of this Agreement may not be
waived or amended except in a writing executed by Debtor and a duly authorized
officer of Coast.

                                       8
<PAGE>

Coast Business Credit Security Agreement                      Security Agreement
--------------------------------------------------------------------------------

      12.4 Time of Essence. Time is of the essence in the performance by Debtor
of each and every obligation under this Agreement.

      12.5 Mutual Waiver of Jury Trial. Debtor and Coast each hereby waive the
right to trial by jury in any action or proceeding based upon, arising out of,
or in any way relating to, this Agreement or any other present or future
instrument or agreement between Coast and Debtor, or any conduct, acts or
omissions of Coast or Debtor any of their directors, officers, employees,
agents, attorneys or any other persons affiliated with Coast or Debtor.

      12.6 Benefit of Agreement. The provisions of this Agreement shall be
binding upon and inure to the benefit of the respective successors, assigns,
heirs, beneficiaries and representatives of the parties hereto; provided,
however, that Debtor may not assign or transfer any of its rights under this
Agreement without the prior written consent of Coast, and any prohibited
assignment shall be void. No consent by Coast to any assignment shall relieve
Debtor or any guarantor from its liability for the Obligations.

      12.7 Joint and Several Liability. The liability of each Debtor shall be
joint and several and the compromise of any claim with, or the release of, any
Debtor shall not constitute a compromise with, or a release of, any other
Debtor.

      12.8 Paragraph Headings; Construction. Paragraph headings are used herein
for convenience only. Debtor acknowledges that the same may not describe
completely the subject matter of the applicable paragraph, and the same shall
not be used in any manner to construe, limit, define or interpret any term or
provision hereof. This Agreement have been fully reviewed and negotiated between
the parties and no uncertainty or ambiguity in any term or provision of this
Agreement shall be construed strictly against Coast or Debtor under any rule of
construction or otherwise.

      12.9 Governing Law; Jurisdiction; Venue. This Agreement and all acts and
transactions hereunder and all rights and obligations of Coast and Debtor shall
be governed by and in accordance with the laws of the State of California. Any
undefined term used in this Agreement that is defined in the California Uniform
Commercial Code shall have the meaning therein assigned to that term. As a
material part of the consideration to Coast to enter into this Agreement, Debtor
(i) agrees that all actions and proceedings relating directly or indirectly
hereto shall, at Coast's option, be litigated in courts located within
California. and that the exclusive venue therefor shall be Los Angeles County;
(ii) consents to the jurisdiction and venue of any such court and consents to
service of process in any such action or proceeding by personal delivery or any
other method permitted by law; and (iii) waives any and all rights Debtor may
have to object to the jurisdiction of any such court, or to transfer or change
the venue of any such action or proceeding.

Debtor:  GREENMAN TECHNOLOGIES, INC.,
         a Delaware corporation

      By /s/ Robert H. Davis
        ---------------------------------------------
      Title: President
             ----------------------------------------

      By /s/ Charles E. Coppa
        ---------------------------------------------
      Title: President
             ----------------------------------------

Coast:   COAST BUSINESS CREDIT,
         a division of Southern Pacific Bank

      By Richard Banovitz
        ---------------------------------------------
      Title VP - Underwriting
           ------------------------------------------

                                       9
<PAGE>

                                                                    Schedule 2.3

Prior Names of Debtor

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

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

Fictitious Names, Trade Names, and Trade Styles of Debtor

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

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

                                       10
<PAGE>

                    Coast Business Credit Security Agreement

                                  Schedule 2.4

Other Addresses and Other Locations of Collateral

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

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

                                      -11-Exhibit 10.90

                                 LOAN AGREEMENT

THIS AGREEMENT, is made as of the 29th day of March, 2001, by and among GreenMan
Technologies of Minnesota, Inc., a Minnesota corporation (the "Borrower"), and
Bremer Business Finance Corporation, a Minnesota corporation (the "Lender").

                                   WITNESSETH:

WHEREAS, the Borrower has requested the Lender to extend a real estate loan in
the original principal amount of Nine Hundred Fifty Thousand and 00/100 Dollars
($950,000.00) to provide financing in connection with property located at 12498
Wyoming Avenue South, Savage, Minnesota 55378 (the "Project"); and

WHEREAS, the Lender is willing and prepared to extend such a real estate loan to
the Borrower upon the terms and subject to the conditions hereinafter set forth.

NOW, THEREFORE, in consideration of the foregoing premises and the mutual
covenants herein contained and for other good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged, the parties hereto
hereby agree as follows:

1.    REAL ESTATE LOAN. On the date hereof, the Lender has made a real estate
      loan to the Borrower in the original principal amount of Nine Hundred
      Fifty Thousand and 00/100 Dollars ($950,000.00) (the "Loan").

2.    REAL ESTATE NOTE. The obligation of the Borrower to repay the Loan is
      evidenced by that certain Real Estate Note of even date herewith executed
      by the Borrower in the original principal amount of Nine Hundred Fifty
      Thousand and 00/100 Dollars ($950,000.00) and payable to the order of the
      Lender (the "Note").

3.    MORTGAGE. As a condition precedent to the making by the Lender of the
      Loan, the Borrower has executed and delivered to the Lender that certain
      Mortgage, Security Agreement, Fixture Financing Statement and Assignment
      of Leases and Rents of even date herewith (the "Mortgage") pursuant to
      which the Borrower has granted a first mortgage lien and first security
      interest in and to, and a first assignment of leases and rents with
      respect to, the Project.

4.    ENVIRONMENTAL AND ADA INDEMNIFICATION. Also as a condition precedent to
      the making by the Lender of the Loan, the Borrower has executed and
      delivered to the Lender that certain Environmental and ADA Indemnification
      Agreement (the "Indemnification") of even date herewith.

5.    GUARANTY. Also as a condition precedent to the making by the Lender of the
      Loan, GreenMan Technologies, Inc., a Delaware corporation ("Guarantor"),
      has executed and delivered to the Lender that certain Corporate Guaranty
      (the "Guaranty") of even date herewith.
<PAGE>

6.    ADDITIONAL CONDITIONS TO LENDING. In addition to the preconditions set
      forth in Paragraphs 3, 4 and 5 of this Agreement, the obligation of the
      Lender to make the Loan is subject to the following:

            A. The Borrower Documents, shall be duly executed and delivered by
            the Borrower.

            B. Borrower and Guarantor shall provide the Lender with copies of
            their organizational documents including Certificates of Good
            Standing of the Borrower and the Guarantor, duly issued by the
            Secretary of State of the State of Minnesota, and the State of
            Delaware, respectively, copies of the Borrower's and Guarantor's
            Articles of Incorporation, bylaws and any buy-sell agreements,
            copies of the resolutions of both the Borrower and Guarantor,
            authorizing the execution, delivery and performance of the Borrower
            Documents, and the Guaranty, duly certified by an officer thereof.

            C. an Opinion of Counsel for the Borrower and the Guarantor dated as
            of the date of this Agreement and acceptable in form and substance
            to the Lender.

            D. The title documents, each of which shall be acceptable to the
            Lender including (i) a fully paid mortgage's title insurance policy
            issued by American Land Title Insurance Company in the amount equal
            to the Loan insuring the Mortgage as a first lien on a good and
            marketable fee simple title to the Project, subject only to
            "Permitted Encumbrances" (as that term is defined in the Mortgage)
            and, without limiting the generality of the foregoing, insuring the
            mortgage against claims for mechanic liens, right of parties in
            possession and matters which would be disclosed by comprehensive
            survey and containing judgment, tax lien, assessment and bankruptcy
            searches, a zoning endorsement, comprehensive endorsement and such
            other endorsements as shall be requested by Lender, along with
            written evidence of payment of all real estate taxes relating to the
            land upon which the Project is situated, and all levied and pending
            assessments relating to the Project (the "Title Documents").

            E. Borrower shall have delivered to a Lender an appraisal reflecting
            the value of the Project in the amount $1,265,000, which shall be
            certified to Lender prior to disbursement of the loan proceeds.

7.    REPRESENTATIONS. In order to induce the Lender to make the Loan, the
      Borrower hereby warrants and represents to the Lender as follows:

      A. Authority of Borrower. The Borrower has full power and authority to
      execute and deliver this Agreement, the Note, the Mortgage, the Security
      Agreement and the Indemnification, financing statements, along with all
      other documents and agreements to be executed in connection therewith
      (collectively, the "Borrower Documents") and to

                                      -2-
<PAGE>

      incur and perform its obligations thereunder; the execution, delivery and
      performance by the Borrower of the Borrower Documents will not violate any
      provision of any law, rule, regulation or court order or result in the
      breach of, constitute a default under, or create or give rise to any lien
      under, any indenture or other agreement or instrument to which the
      Borrower is a party or by which the Borrower or its property may be bound
      or affected.

      B. Enforceability Against the Borrower. Each of the Borrower Documents
      constitutes the legal, valid and binding obligation of the Borrower
      enforceable in accordance with its respective terms (subject, as to
      enforceability, to limitations resulting from bankruptcy, insolvency and
      other similar laws affecting creditors' rights generally).

      C. Financial Condition. The financial statements of the Borrower
      heretofore furnished to the Lender are complete and correct in all
      material respects and fairly present the financial condition of the
      Borrower at the date of such statements. Since the most recent set of
      financial statements delivered by the Borrower to the Lender, there have
      been no material adverse changes in the financial condition of the
      Borrower.

      D. Litigation. There is no action, suit or proceeding pending or, to the
      knowledge of the Borrower, threatened against or affecting either of the
      Borrower which, if adversely determined, would have a material adverse
      effect on the condition (financial or otherwise), business, properties or
      assets of either of the Borrower or which would question the validity of
      the Borrower Documents or any instrument, document or other agreement
      related hereto or required hereby, or impair the ability of the Borrower
      to perform their obligations under the foregoing agreements.

      E. Licenses. The Borrower possess adequate licenses, permits, franchises,
      patents, copyrights, trademarks and trade names, or rights thereto, to
      conduct their business substantially as now conducted and as presently
      proposed to be conducted.

      F. Default. The Borrower is not in default of a material provision under
      any agreement, instrument, decree or order to which it is a party or by
      which it or its property is bound or affected.

      G. Consents. No consent, approval, order or authorization of, or
      registration, declaration or filing with, or notice to, any governmental
      authority or any third party is required in connection with the execution
      and delivery of the Borrower Documents or any of the agreements or
      instruments herein mentioned relating to the Loan to which the Borrower is
      a party or the carrying out or performance of any of the transactions
      required or contemplated hereby or thereby or, if required, such consent,
      approval, order or authorization has been obtained or such registration,
      declaration or filing has been accomplished or such notice has been given
      prior to the date hereof.

      H. Taxes. The Borrower has filed all tax returns required to be filed and
      either paid all taxes shown thereon to be due, including interest and
      penalties, which are not being contested in good faith and by appropriate
      proceedings, or provided adequate reserves for

                                      -3-
<PAGE>

      payment thereof, and the Borrower has no information or knowledge of any
      objections to or claims for additional taxes in respect of federal income
      or excess profits tax returns for prior years.

      I. Titles, Etc. Borrower has good title to the Project, free and clear of
      all mortgages, liens and encumbrances, except the Permitted Encumbrances
      (as described in the Mortgage). The Mortgage constitutes a valid and
      perfected first mortgage lien on the Project.

      J. Judgments. There are no judgments outstanding or docketed against the
      Borrower.

      K. Project. The Project and the intended use thereof for the purpose and
      in the manner contemplated by this Agreement are permitted by and will
      comply in all material respects with all presently applicable use or other
      restrictions and requirements in prior conveyances, zoning ordinances and
      all development, pollution control, water conservation and other laws,
      regulations, rules and ordinances of the United States and the State of
      Minnesota and the respective agencies thereof, and the political
      subdivision in which the Project is located.

      L. Environmental. Except as disclosed in that certain Phase I
      Environmental Report dated June 2, 1997, and Phase II Assessment dated
      February, 1998 prepared by Rust Environment & Infrastructure as updated
      and certified to Lender on March 24, 2001 (collectively, the
      "Environmental Report") and small amounts of hazardous waste (i.e.,
      batteries, fluorescent bulbs, parts washing solutions, etc) generated and
      stored pursuant to a Very Small Quantity Generator Hazardous Waste License
      ("VSQG License"), to the best of its knowledge after due inquiry, no
      pollutants or other toxic or hazardous waste or substances, including any
      solid, liquid, gaseous, or thermal irritant or contaminant, such as smoke,
      vapor, soot, fumes, acids, alkalis, chemicals or waste (including
      materials to be recycled, reconditioned or reclaimed) (collectively
      "substances") which is regulated by law, regulation, ordinance or code
      have existed in, on or under any property of the Borrower, or have been
      discharged, dispersed, released, stored, treated, generated, disposed of,
      or allowed to escape (collectively referred to as an "incident") on any
      property of the Borrower. The Borrower shall not nor shall it permit third
      parties to cause an incident, shall take reasonable steps to ensure that
      an incident does not occur, and shall promptly take all appropriate steps
      to remedy an incident, in compliance with all local, state and federal
      laws and regulations should an incident occur;

            1.    except as disclosed in the Environmental Report, no asbestos
                  or asbestos-containing materials have been installed, used,
                  incorporated into, or disposed of on any of the Borrower's
                  property;

            2.    except as disclosed in the Environmental Report, or as
                  contained in electrical transformers owned by Northern States
                  Power or as generated and stored pursuant to the VSQG License,
                  no polychlorinated biphenyls

                                      -4-
<PAGE>

                  ("PCBs") are located on or in any of the Borrower's property,
                  in the form of electrical transformers, fluorescent light
                  fixtures with ballasts, cooling oils, or any other device or
                  form;

            3.    except as disclosed in the Environmental Report, to the best
                  of its knowledge after due inquiry, no underground storage
                  tanks are located on any of the Borrower's property or were
                  located on the Borrower's property and subsequently removed or
                  filled, except those tanks that have been identified (by size,
                  location, age, substance contained therein, and whether in
                  existence, removed or filled) in writing to the Lender;

            4.    except as disclosed in the Environmental Report, no dump,
                  sanitary landfill or gasoline service station are or were
                  located on any of the Borrower's property;

            5.    except as disclosed in the Environmental Report, no
                  investigation, administrative order, consent order and
                  agreement, litigation, or settlement (collectively referred to
                  as the "action") including, but not limited to, proceedings or
                  actions commenced by any person (including, but not limited to
                  any federal, state, or local government or agency or entity
                  before any court or administrative agency) with respect to the
                  foregoing hazardous wastes or substances is proposed,
                  threatened, anticipated or in existence with respect to any of
                  the Borrower's property; and

            6.    except as disclosed in the Environmental Report, to the best
                  of its knowledge after due inquiry, the Project and the
                  Borrower's operations at the Project always have been and now
                  are in compliance with all applicable federal, state and local
                  statutes, laws and regulations. Except as disclosed in the
                  Environmental Report, no notice has been served on the
                  Borrower from any entity, governmental body, or individual
                  claiming any violation of any law, regulation, ordinance or
                  code, or requiring compliance with any law, regulation,
                  ordinance or code, or demanding payment or contribution for
                  environmental damage or injury to natural resources, or any
                  injury to human health

8.    COVENANTS OF THE BORROWER. On and after the date hereof and until the
      payment in full of the Note, and the performance of all other obligations
      of the Borrower hereunder, the Borrower agree that, unless the Lender
      shall otherwise consent in writing:

      A. to keep, perform, enforce and maintain in full force and effect all of
      the terms, covenants, conditions and requirements of the Borrower
      Documents, and the Title Documents, not to amend, modify, supplement,
      terminate, cancel or waive any of the terms, covenants, conditions or
      requirements of any of said documents without the prior written consent of
      the Lender;

                                      -5-
<PAGE>

      B. to create, permit to be created or to allow to exist, no liens, charges
      or encumbrances on the Project (other than "Permitted Encumbrances" (as
      defined in the Mortgage) and the lien of general real estate taxes and
      pending and special assessments not yet due and payable) except for such
      liens, charges and encumbrances which are being diligently contested in
      good faith by appropriate proceedings and provided that, if requested by
      the Lender, the Borrower shall have provided to the Lender security
      satisfactory to the Lender as set forth in Section 1.3 of the Mortgage;

      C. to obtain and maintain, or cause to be obtained and maintained, at all
      times during the term of the Loan, if applicable (and, from time to time
      at the request of the Lender, furnish the Lender with proof of payment of
      premiums on):

            1. comprehensive general liability insurance (including operations,
            contingent liability, operations of subcontractors, complete
            operations and contractual liability insurance) in such amount as
            the Lender may require from time to time (but with coverage of not
            less than $2,000,000/$1,000,000) and naming the Lender as an
            additional insured;

            2. hazard insurance, insuring against loss by fire, lightning,
            vandalism, malicious mischief and other risks customarily covered by
            a standard extended coverage endorsement, in an amount not less than
            the Loan Amount or the full insurable value of the Project,
            whichever is greater, and naming the Lender as mortgagee and loss
            payee; and

            3. flood insurance, if any of the Land is located in a "flood plain"
            as defined by the Federal Insurance Administration, in the maximum
            obtainable amount up to the Loan Amount, naming the Lender as loss
            payee (unless an appropriate official of the city in which the Land
            is located states in writing that all of the Land is not located in
            a "flood plain" as defined by the Federal Insurance Administration);

            such policies of insurance to be in form and content satisfactory to
            the Lender and to be placed with insurers acceptable to the Lender
            licensed to transact business in the State of Minnesota and to
            contain an agreement of the insurer to give not less than thirty
            (30) days' prior written notice to the Lender in the event of
            cancellation, termination, amendment change or non-renewal of such
            policy affecting the coverage thereunder; acceptance of such
            insurance policies not to bar the Lender from requiring additional
            insurance (either in type or amount) at a later date which it
            reasonably deems necessary;

      D. to give immediate notice to the Lender after the Borrower has knowledge
      of the occurrence of an Event of Default, or an event which with the
      giving of notice or lapse of time or both would constitute an Event of
      Default, a statement signed by the Borrower setting forth details of such
      Event of Default or event and the action which the Borrower has taken, is
      taking or proposes to take to correct the same;

                                      -6-
<PAGE>

      E. to pay and discharge all real estate taxes prior to the attachment of
      penalties with respect thereto and installments of special assessments
      payable therewith, and insurance premiums with respect to the insurance
      required to be maintained by the Borrower under the terms of any of the
      Borrower Documents, and utility charges incurred by the Borrower prior to
      or during the term of this Agreement, except if such taxes, assessments or
      premiums are being contested in good faith by appropriate proceedings and
      provided that, if requested by the Lender, the Borrower shall have
      deposited into escrow with the Lender an amount equal to such taxes,
      assessments or premiums plus penalties accrued thereon;

      F. to cause to be prepared financial statements of the Borrower and the
      Guarantor as follows:

            1.    as soon as available and in any event within one hundred
                  twenty (120) days after the end of each fiscal year of the
                  Borrower annual financial statements of the Borrower (balance
                  sheet, statement of income, and statement of changes in
                  financial position) for such year, all in reasonable detail
                  and audited by independent certified public accountants
                  selected by the Borrower and acceptable to the Lender in
                  accordance with generally accepted accounting principles,
                  consistently applied, which statement shall also be
                  accompanied by a certificate signed by an officer of the
                  Borrower in the form attached hereto as Exhibit A;

            2.    as soon as available and in any event within one-hundred
                  twenty (120) days after the end of each fiscal year, annual
                  financial statements of the Guarantor (balance sheet,
                  statement of income, and statement of cash flow) on a combined
                  and combining basis, all in reasonable detail and prepared and
                  audited by independent certified public accountants of
                  recognized standing selected by the Borrower and acceptable to
                  the Lender to the effect that the same have been prepared in
                  accordance with generally accepted accounting principles,
                  consistently applied, which statement shall also be
                  accompanied by a certificate signed by an officer of such
                  entity;

            3.    on or before December 15 of each year or within thirty (30)
                  days after the filing of their tax returns, financial
                  statements and copies of the tax returns of the Borrower and
                  the Guarantor;

            4.    monthly internally prepared financial statements as soon as
                  available, and in any event within thirty (30) days after the
                  end of each month;

            5.    from time to time, with reasonable promptness, such further
                  information regarding the business, operations, affairs and
                  financial and other condition of the Borrower as the Lender
                  may request.

                                      -7-
<PAGE>

      G. to promptly give notice in writing to the Lender of any and all
      litigation involving the Borrower where the amount in dispute exceeds
      $50,000 and is not covered by insurance, and of any and all litigation if
      the aggregate amount in dispute in connection with such litigation exceeds
      $50,000 and is not covered by insurance, and of any and all material
      proceedings commenced against the Borrower by or before any court or
      governmental or regulatory agency;

      H. to comply with the requirements of all applicable laws, rules,
      regulations and orders of any governmental authority, a breach of which
      would materially and adversely affect the business or credit of the
      Borrower, except where diligently contested in good faith and by proper
      proceedings;

      I. that the Borrower shall not enter into any tenant leases for leased
      space within the Project without the prior written consent of the Lender;

      J. to preserve and maintain all of the Borrower's rights, privileges and
      permits or licenses necessary or desirable in the normal conduct of the
      Borrower's business; and not to suspend business operations or convey,
      transfer, encumber or pledge any of the property or assets that are
      secured by the Mortgage;

      K. to keep all of the assets and properties necessary in the Borrower's
      business, in good working order and condition, ordinary wear and tear
      excepted;

      L. to obtain all necessary and convenient state, federal, local and
      private clearances, authorizations, permits and licenses with respect to
      the business operations of the Borrower, including, without limitation,
      any export and other trade licenses or permits required by law for the
      present or future business operations of the Borrower; and

      M. except for those guaranties and obligations existing as of the date
      hereof and disclosed on the attached Schedule 9.M, or otherwise in the
      ordinary course of Borrower's business, the Borrower shall not assume,
      guarantee, endorse, contingently agree to purchase or otherwise become
      liable (directly or indirectly, absolutely or contingently) in connection
      with the obligations of any other person, firm or corporation, nor shall
      the Borrower make or permit to exist any loans or advances by the Borrower
      to, or purchase or otherwise acquire all or any substantial part of the
      assets of, or any shares of stock or similar interest in, any other
      person, corporation or entity; provided, however, loans or advances by and
      between the Borrower and the Guarantor shall be permitted and shall not
      require advance consent of the Lender;

      N. not to undertake or permit without prior written approval of the Lender
      any other or additional construction on the Project site that is the
      subject of the Mortgage;

      O. the Borrower shall immediately notify the Lender of any termination of
      its license and permits issued by any governmental or regulatory
      authorities that are necessary to run its business operation.

                                      -8-
<PAGE>

      P. Borrower shall not permit, as at the end of each fiscal quarter, the
      Debt Service Coverage Ratio to be less than 1.25 to 1.00. For purposes of
      this provision "Debt Service Coverage Ratio" means, as at the end of any
      fiscal quarter for the three month fiscal quarter ending on such date
      (i.e. the last day of September, December, March and June) for Borrower,
      the ratio whose numerator is EBITDA, minus non-financed capital
      expenditures, minus cash taxes, and whose denominator is interest
      payments, plus the current maturities of long-term debt, plus the current
      portion of capital leases. "EBITDA" means, in any fiscal period,
      Borrower's net income for net loss (other than extraordinary or
      non-recurring gains of Borrower for such period), plus (i) the amount of
      all interest expense, income tax expense, depreciation expense and
      amortization expense of Borrower for such period, and plus or minis (as
      the case may be) (ii) any other non-cash charges which have been added or
      subtracted, as the case may be, in calculating Borrower's net income for
      such period.

9.    Event of Default Defined. As used herein, the term "Event of Default"
      shall mean and include each or all of the following events:

      A. the Borrower or Guarantor shall fail to pay, when due, any amounts
      required to be paid by the Borrower under the Note, or any other
      indebtedness of the Borrower or Guarantor to the Lender, or the Borrower
      or the Guarantor shall otherwise be in default under the terms of any or
      indebtedness to any third party lender and such default is not cured
      within the applicable cure period or the third party lender has not
      otherwise waived the default;

      B. the Borrower or Guarantor shall fail to observe or perform any of their
      respective covenants, conditions or agreements to be observed or performed
      by either of them under the Borrower Documents, the Guaranty or any other
      credit or similar agreement between the Borrower and the Lender or the
      Guaranty for a period of five (5) days after written notice, specifying
      such default and requesting that it be remedied, given to such party by
      the Lender, unless the Lender shall agree in writing to an extension of
      such time prior to its expiration, or for such longer period as may be
      reasonably necessary to remedy such default (other than defaults which can
      be cured by a money payment) provided that such party is proceeding with
      reasonable diligence to remedy the same;

      C. the Borrower or Guarantor shall file a petition in bankruptcy or for
      reorganization or for an arrangement pursuant to any present or future
      state or federal bankruptcy act or under any similar federal or state law,
      or shall be adjudicated a bankrupt or insolvent, or shall make a general
      assignment for the benefit of its or his creditors, or shall be unable to
      pay its debts generally as they become due; or if a petition or answer
      proposing the adjudication of the Borrower or Guarantor as a bankrupt or
      its reorganization under any present or future state or federal bankruptcy
      act or any similar federal or state law shall be filed in any court and
      such petition or answer shall not be discharged or denied within
      forty-five (45) days after the filing thereof; or if a receiver, trustee
      or liquidator of the Borrower or any Guarantor or of all or substantially
      all of the assets of the Borrower or

                                      -9-
<PAGE>

      Guarantor or of the Project shall be appointed in any proceeding brought
      against the Borrower or Guarantor and shall not be discharged within
      ninety (90) days of such appointment; or if the Borrower or Guarantor
      shall consent to or acquiesce in such appointment; or if any property of
      the Borrower or Guarantor (including, without limitation, the estate or
      interest of the Borrower in the Project or any part thereof) shall be
      levied upon or attached in any proceeding;

      D. final judgment(s) for the payment of money in excess of $100,000,
      individually or in the aggregate, shall be rendered against the Borrower
      or the Guarantor and shall remain undischarged for a period of thirty (30)
      days during which execution shall not be effectively stayed;

      E. the Borrower or Guarantor shall be or become insolvent (whether in the
      equity or bankruptcy sense);

      F. any representation or warranty made by the Borrower or Guarantor in the
      Borrower Documents or by any Guarantor in the Guaranty shall prove to be
      untrue or misleading in any material respect, or any statement,
      certificate or report furnished hereunder or under any of the foregoing
      documents by or on behalf of the Borrower or Guarantor shall prove to be
      untrue or misleading in any material respect on the date when the facts
      set forth and recited therein are stated or certified;

      G. any material adverse change in the financial condition of the Borrower
      or Guarantor which, in the reasonable opinion of the Lender, increases its
      risk with respect to the Note;

      H. the Borrower or Guarantor shall liquidate, dissolve, terminate or
      suspend its business operations or otherwise fail to operate its business
      in the ordinary course, or sell all or substantially all of its assets,
      without the prior written consent of the Lender;

      I. except as otherwise provided in the Mortgage, the Borrower or the
      Guarantor shall fail to pay, withhold, collect or omit any tax or tax
      deficiency when assessed or due (other than any tax or tax deficiency
      which is being contested in good faith and by proper proceedings and for
      which it shall have set aside on its books adequate reserves therefor) or
      notice of any state or federal tax liens shall be filed or issued;

      J. any property of the Borrower or of the Guarantor shall be garnished,
      levied upon or attached in any proceeding and such garnishment or
      attachment shall remain undischarged for a period of thirty (30) days
      during which execution has not been effectively stayed;

      K. the Project is condemned, destroyed or damaged to any material extent,
      whether or not the same is covered by insurance and the Lender has the
      right to apply the proceeds of such insurance or condemnation award as a
      prepayment of the Note pursuant to Section 2.02 or 2.03 of the Mortgage;
      or

                                      -10-
<PAGE>

      L. the Borrower sells, leases, assigns, transfers or otherwise disposes of
      the Project.

10.   NOTICES. All notices, consents, requests, demands and other communications
      hereunder shall be given to or made upon the respective parties hereto at
      their respective addresses specified below or, as to any party, at such
      other address as may be designated by it in a written notice to the other
      party. All notices, requests, consents and demands hereunder shall be
      effective when personally delivered or duly deposited in the United States
      mails, certified or registered, postage prepaid, or delivered to the
      telegraph company, addressed as aforesaid.

      IF TO THE LENDER:
      Bremer Business Finance Corporation
      445 Minnesota Street, 21st Floor
      St. Paul, MN 55101
      Attn:  Jennifer L. Senecal

      IF TO THE BORROWER:
      GreenMan Technologies of Minnesota, Inc.
      12498 Wyoming Avenue South
      Savage, MN 55378
      Attn: Charles Coppa, Treasurer

      WITH A COPY TO:
      Beth Gerstein Timm, Esq.
      Winthrop & Weinstine, P.A.
      3000 Dain Rauscher Plaza
      60 South Sixth Street
      Minneapolis, MN 55402

11.   MISCELLANEOUS.

      A. Waivers, etc. No failure on the part of the Lender to exercise, and no
      delay in exercising, any right or remedy hereunder or under applicable law
      or any document or agreement related hereto shall operate as a waiver
      thereof; nor shall any single or partial exercise of any such right or
      remedy preclude any other or further exercise thereof or the exercise of
      any other right or remedy. The remedies herein provided are cumulative and
      not exclusive of any remedies provided by law.

      B. Expenses. The Borrower shall reimburse the Lender for any and all costs
      and expenses, including without limitation reasonable attorneys' fees,
      paid or incurred by the Lender in connection with (i) the preparation of
      this Agreement, the Note, the Mortgage, the Guaranty, the Indemnification,
      the Security Agreement and any other document or agreement related hereto
      or thereto, and the transactions contemplated hereby, which amount shall
      be paid prior to the making of any advance hereunder; (ii) the negotiation
      of

                                      -11-
<PAGE>

      any amendments, modifications or extensions to any of the foregoing
      documents, instruments or agreements and the preparation of any and all
      documents necessary or desirable to effect such amendments, modifications
      or extensions; and (iii) the enforcement by the Lender during the term
      hereof or thereafter of any of the rights or remedies of the Lender under
      any of the foregoing documents, instruments or agreements under applicable
      law, whether or not suit is filed with respect thereto.

      C. Amendments, etc. This Agreement and the Note may not be amended or
      modified, nor may any of their terms (including without limitation, terms
      affecting the maturity of or rate of interest on the Note) be modified or
      waived, except by written instruments signed by the Lender and the
      Borrower.

      D. Successors. This Agreement shall be binding upon and inure to the
      benefit of the Borrower and the Lender and their respective successors and
      assigns; provided, however, that the Borrower may not transfer or assign
      their right to borrow hereunder without the prior written consent of the
      Lender.

      E. Offsets. Nothing in this Agreement shall be deemed a waiver or
      prohibition of the Lender's right of banker's lien, offset, or
      counterclaim, which right the Borrower hereby grant to the Lender.

      F. Counterparts. This Agreement may be executed in any number of
      counterparts, all of which taken together shall constitute one agreement,
      and any of the parties hereto may execute this Agreement by signing any
      such counterpart.

      G. Governing Law. This Agreement, the Note and all other agreements
      related hereto, shall be construed in accordance with and governed by the
      laws of the State of Minnesota without giving effect to the choice of law
      provisions thereof.

      H. Headings. The descriptive headings for the several sections of this
      Agreement are inserted for convenience only and shall not define or limit
      any of the terms or provisions hereof.

                                      -12-
<PAGE>

IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be duly
executed and delivered as of the day and year first above written.

                                            BORROWER:
                                            GREENMAN TECHNOLOGIES
                                            OF MINNESOTA, INC.

                                                /s/ Robert H. Davis
                                            ------------------------------------
                                            By:  Robert H. Davis
                                                 -------------------------------
                                            Its: President
                                                 -------------------------------

                                            LENDER:
                                            BREMER BUSINESS FINANCE
                                            CORPORATION

                                            ------------------------------------
                                            By:
                                                 -------------------------------
                                            Its:
                                                 -------------------------------
<PAGE>

                                    EXHIBIT A

               (Form of Certificate Certifying Financial Records)

The undersigned hereby certifies to Bremer Business Finance Corporation
("Lender"), that:

      (i) the financial statement(s) attached hereto are complete and correct in
      all material respects and fairly present the financial condition of
      GreenMan Technologies of Minnesota, Inc., a Minnesota corporation (the
      "Borrower") and the "Project" (as those terms are defined in that certain
      term loan agreement ("Loan Agreement") dated as of ____________, 2001 by
      and between the Borrower and the Lender) as of the date of said financial
      statement(s), including all guaranty and other contingent obligations of
      the Borrower;

      (ii) except as set forth on Exhibit A attached hereto (if any), no "Event
      of Default" (as that term is defined in the Loan Agreement) has occurred
      and is continuing as of the date hereof which has not been waived by the
      Lender, and no event has occurred and is continuing as of the date hereof
      which with notice or lapse of time or both would constitute an Event of
      Default, or, if such an event has occurred and is continuing, the steps
      which the Borrower has taken, is taking or proposes to take to correct the
      same are specified in said Exhibit A; and

      (iii) the warranties, representations and covenants of the Borrower set
      forth and contained in the Loan Agreement and the documents related
      thereto are true and correct in all material respects as of the date
      hereof.

IN WITNESS WHEREOF, the undersigned has signed and delivered this Certificate to
the Lender as of the _____ day of ___________, 200____.

                                       GreenMan Technologies of Minnesota, Inc.,
                                       a Minnesota corporation

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

                                           -------------------------------------
                                           Its:
                                                --------------------------------

                                      -14-
<PAGE>

                                   Schedule 9M

                                   GUARANTIES

Borrower is also a co-borrower, jointly and severally liable, with GreenMan
Technologies of Georgia, Inc. for the loans extended to Borrower and co-borrower
as identified and set forth in that certain Loan Agreement dated January 31,
2001, naming Coast Business Credit as lender, and Borrower and GreenMan
Technologies of Georgia, Inc. as co-borrowers.

                                      -15-

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