GREENMAN TECHNOLOGIES INC
8-K, 1997-07-15
PLASTICS PRODUCTS, NEC
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                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                                    FORM 8-K

                                 CURRENT REPORT


                       Pursuant to Section 13 or 15(d) of
                       The Securities Exchange Act of 1934


 Date of Report (Date of earliest event reported): July 15, 1997 (June 30, 1997)


                           GREENMAN TECHNOLOGIES, INC.
             (Exact name of registrant as specified in its charter)


     Delaware                       1-13776                    71-0724248
 (State or other               (Commission                    (IRS Employer
jurisdiction of                   File Number)              Identification No.)
incorporation)             
                   

                                 7 Kimball Lane
                                   Building A
                         Lynnfield, Massachusetts 01450
          (Address of principal executive offices, including zip code)




                                 (617) 224-2411
              (Registrant's telephone number, including area code)





          (Former name or former address, if changed since last report)




<PAGE>





Item 2.  Acquisition or Disposition of Assets

         On June 30, 1997,  GreenMan  Acquisition Corp.  ("GAC"), a wholly-owned
subsidiary of GreenMan Technologies, Inc., ("GMTI" or the "Registrant") acquired
all of the capital stock of each of (i) BFI Tire  Recyclers of  Minnesota,  Inc.
("BTM"), a wholly-owned  subsidiary of Browning-Ferris  Industries of Minnesota,
Inc.  ("BFIM")  and  (ii)  BFI  Tire  Recyclers  of  Georgia,  Inc.  ("BTG"),  a
wholly-owned subsidiary of Browning-Ferris Industries of Georgia, Inc. ("BFIG").
BFIG and BFIM are both wholly-owned  subsidiaries of Browning Ferris Industries,
Inc.  ("BFI").  The acquisition  was made pursuant to that certain  Purchase and
Sale Agreement, dated as of June 30, 1997, by and among GMTI, GAC, BFI, BFIM and
BFIG and  included in this Report as Exhibit 2.  Further  information  about the
acquisition  reported hereby may be found in the  Registrant's  press release of
July 7, 1997, included as Exhibit 99 to this Report.

         In  consideration  for the capital  stock of BTM and BTG,  GAC paid BFI
$5,408,830, which amount was determined, (a) as to $3,600,000 of such amount, by
negotiation  among the parties and (b) as to the balance,  by the value of BTG's
and  BTM's  working  capital.  Of such  consideration,  $650,000  was paid  from
proceeds of the private placement in April 1997 of Convertible Notes due October
1998 and Common  Stock  Purchase  Warrants  and  $4,758,830  was  financed  by a
short-term  loan from BFI to GAC,  which  loan must be repaid by  September  30,
1997.  The repayment of such loan is guaranteed by GMTI and is secured by all of
BTM's  assets,  all of BTG's assets and by a pledge by GAC of all of the capital
stock of BTG and BTM. The Registrant expects to refinance such loan prior to its
maturity.



Item 7. Financial Statements and Exhibits

         (a) Financial Statements and Exhibits

          As of the  date  of  filing  of this  Current  Report  on  8-K,  it is
impracticable for the Registrant to provide the financial statements required by
this Item 7(a).  In  accordance  with Item 7(a)(4) of Form 8-K,  such  financial
statements  shall be filed by  amendment  to this Form 8-K no later than 60 days
after the date hereof.

         (b)  Pro Forma Financial Information

         As of the  date  of  filing  of  this  Current  Report  on  8-K,  it is
impracticable  for the  Company to provide the pro forma  financial  information
required by this Item 7(b).  In  accordance  with Item 7(b)(2) of Form 8-K, such
financial  statements shall be filed by amendment to this Form 8-K no later than
60 days after the date hereof.



                                       -2-

<PAGE>



(c)  Exhibits


         Exhibit 2         Purchase  and  Sale  Agreement,  dated as of June 30,
                           1997,  by  and  among  GreenMan  Technologies,   Inc.
                           ("GMTI"),   GreenMan   Acquisition   Corp.   ("GAC"),
                           Browning    Ferris    Industries,    Inc.    ("BFI"),
                           Browning-Ferris   Industries   of   Minnesota,   Inc.
                           ("BFIM") and  Browning-Ferris  Industries  of Georgia
                           ("BFIG").

         Exhibit 10(a)     Promissory Note dated as of June 30, 1997 made by
                           GAC to BFIM and BFIG.

         Exhibit 10(b)     Noncompetition,      Nonsolicitation     and
                           Confidentiality Agreement, dated as of June 30, 1997,
                           by and among GMTI, GAC, BFI, BFIM and BFIG.

         Exhibit 10(c)     Security Agreement, dated as of June 30, 1997, by
                           and between BFI Tire  Recyclers of Georgia,  Inc. and
                           BFIG.

         Exhibit 10(d)     Security Agreement, dated as of June 30, 1997, by and
                           between BFI Tire Recyclers of Minnesota, Inc. and 
                           BFIM.

         Exhibit 10(e)     Pledge Agreement,  dated as  of June 30, 1997, by and
                           among GAC, BFIM and BFIG.

         Exhibit 10(f)     Guaranty Agreement, dated as of June 30, 1997 by  and
                           among GMTI, BFIM and BFIG.

         Exhibit 99        Press Release, dated July 7, 1997.


                                       -3-

<PAGE>




                                   SIGNATURES


         Pursuant to the  requirements  of the Securities  Exchange Act of 1934,
the  Registrant  has duly  caused  this report to be signed on its behalf by the
undersigned hereunto duly authorized.

                                            GREENMAN TECHNOLOGIES, INC.
                                            (Registrant)



                                            By:  /s/ Maurice E. Needham
                                                 Maurice E. Needham
                                                 Chief Executive Officer


Date:  July 15, 1997



                                       -4-

                           PURCHASE AND SALE AGREEMENT

                                  BY AND AMONG

                          GREENMAN TECHNOLOGIES, INC.,

                           GREENMAN ACQUISITION CORP.

                        BROWNING FERRIS INDUSTRIES, INC.

                  BROWNING-FERRIS INDUSTRIES OF MINNESOTA, INC.

                                       AND

                   BROWNING-FERRIS INDUSTRIES OF GEORGIA, INC.




                            Dated as of June 30, 1997


<PAGE>



<TABLE>
<CAPTION>
                                TABLE OF CONTENTS


<S>      <C>                                                                                                     <C>
         1.       The Stock Purchase..............................................................................1
                           1.01     Consummation of the Stock Purchase.  .........................................1
                           1.02     Excluded Assets...............................................................1
                           1.03     Purchase Price and Payment....................................................2
                           1.04     The Closing...................................................................2
                           1.05     Post-Closing Adjustment.......................................................2
                           1.06     Accounts Receivable...........................................................2

         2.       Representations of Sellers......................................................................3
                           2.01     Organization..................................................................3
                           2.02     Capitalization................................................................3
                           2.03     Authorization.................................................................3
                           2.04     Financial Data................................................................4
                           2.05     Absence of Undisclosed Liabilities............................................4
                           2.06     Litigation....................................................................5
                           2.07     Insurance.....................................................................5
                           2.08     Leases; Real Estate...........................................................5
                           2.09     Title to Assets...............................................................6
                           2.10     Inventory.  ..................................................................6
                           2.11     Accounts Receivable...........................................................7
                           2.12     Tax Matters...................................................................7
                           2.13     Books and Records.............................................................8
                           2.14     Contracts and Commitments.....................................................8
                           2.15     Compliance with Agreements and Laws..........................................10
                           2.16     Employee Relations...........................................................10
                           2.17     Absence of Certain Changes or Events.........................................11
                           2.18     Customers....................................................................12
                           2.19     Suppliers....................................................................13
                           2.20     Prepayments and Deposits.....................................................13
                           2.21     Indebtedness to and from Officers, Directors
                                     and Stockholders............................................................13
                           2.22     Banking Facilities...........................................................13
                           2.23     Powers of Attorney and Suretyships...........................................13
                           2.24     Regulatory Approvals.........................................................14
                           2.25     Disclosure...................................................................14
                           2.26     Disposal Sites Used..........................................................14
                           2.27     Employee Benefit Plans.......................................................14


                                        i

<PAGE>




                  3.       Representations of GreenMan...........................................................15
                           3.01     Organization and Authority...................................................15
                           3.02     Authorization................................................................15
                           3.03     Regulatory Approvals.........................................................16
                           3.04     Financial Statements.........................................................16
                           3.05     Disclosure...................................................................16

         4.       Access to Information; Public Announcements; Consents..........................................17
                           4.01     Access to Management, Properties and Records.  ..............................17
                           4.02     Confidentiality..............................................................17
                           4.03     Public Announcements.........................................................18
                           4.04     Consents.....................................................................18

         5.       Pre-Closing Covenants of Sellers...............................................................18
                           5.01      Conduct of Business.  ......................................................18
                           5.02     Absence of Material Changes..................................................18
                           5.03     Communications with Customers and Suppliers..................................20
                           5.04     Compliance with Laws.........................................................20
                           5.05     Continuing Obligation to Inform..............................................20
                           5.06     Exclusive Dealing............................................................20
                           5.07     Reports, Taxes...............................................................21

         6.       Conditions to Obligations of GreenMan..........................................................21
                           6.01     Continued Truth of Representations and Warranties of
                                    Sellers; Compliance with Covenants and Obligations...........................21
                           6.02     Performance by BFI...........................................................21
                           6.03     Corporate Proceedings........................................................21
                           6.04     Governmental Approvals.......................................................21
                           6.05     Consent of Third Parties.....................................................21
                           6.06     Adverse Proceedings.  .......................................................22
                           6.07     Opinions of Counsel.  .......................................................22
                           6.08     Update.......................................................................22
                           6.09     Non-Competition Agreement....................................................22
                           6.10     Resignations.  ..............................................................22
                           6.11     Indebtedness.................................................................22
                           6.12     Ford Heights Option..........................................................22
                           6.13     Permit Side Letter...........................................................22
                           6.14     Closing Deliveries...........................................................22


                                       ii

<PAGE>



         7.       Conditions to Obligations of Sellers...........................................................23
                           7.01     Continued Truth of Representations and Warranties
                                    of GMTI and GAC; Compliance with Covenants
                                    and Obligations..............................................................23
                           7.02     Corporate/Stockholder Proceedings............................................23
                           7.03     Governmental Approvals.......................................................23
                           7.04     Consents of Third Parties....................................................24
                           7.05     Adverse Proceedings..........................................................24
                           7.06     Opinion of Counsel...........................................................24
                           7.07     Closing Deliveries.  ........................................................24
                           7.08     Security Interest............................................................24
                           7.09     Ford Heights Option..........................................................25
                           7.10     Guaranty.....................................................................25

         8.       Indemnification................................................................................25
                           8.01     By GreenMan..................................................................25
                           8.02     By Sellers...................................................................25
                           8.03     Claims for Indemnification...................................................26
                           8.04     Defense by the Indemnifying Party............................................27
                           8.05     Payment of Indemnification Obligation........................................27
                           8.06     Survival of Representations; Claims for Indemnification......................28
                           8.07     Claims.......................................................................28

         9.       Dispute Resolution.............................................................................28
                           9.01     General......................................................................28
                           9.02     Consent of the Parties.......................................................28
                           9.03     Arbitration..................................................................28

         10.      Termination of Agreement.......................................................................29
                           10.01    Termination by Lapse of Time.................................................29
                           10.02    Termination by Agreement of the Parties.  ...................................29
                           10.03    Termination by Reason of Breach..............................................29

         11.      Post Closing...................................................................................30
                           11.01    BFI Name and Logos...........................................................30
                           11.02    Access to Records and Properties; Assistance.................................30
                           11.03    Waiver of Applicable Waiting Periods.........................................30
                           11.04    Severance....................................................................30
                           11.05    Termination of Benefit Plan Coverage.........................................31
                           11.06    Financial Assurance..........................................................31
                           11.07    Tax and Allocation Matters...................................................31
                           11.08    Ford Heights Cages...........................................................31

         12.      Brokers........................................................................................31

                                       iii

<PAGE>



                           12.01    For BFI......................................................................31
                           12.02    For GreenMan.................................................................31

         13.      Notices........................................................................................32

         14.      Successors and Assigns.........................................................................33

         15.      Entire Agreement; Amendments; Attachments......................................................33

         16.      Severability...................................................................................33

         17.      Investigation of the Parties...................................................................33

         18.      Expenses.......................................................................................34

         19.      Governing Law..................................................................................34

         20.      Section Headings...............................................................................34

         21.      Counterparts...................................................................................34
</TABLE>


                                       iv

<PAGE>





                           PURCHASE AND SALE AGREEMENT


         This Purchase and Sale  Agreement (the  "Agreement")  is made this 30th
day  of  June,  1997  by and  among  GreenMan  Technologies,  Inc.,  a  Delaware
corporation with its principal place of business at 7 Kimball Lane,  Building A,
Lynnfield,  Massachusetts 01940 ("GMTI"), GreenMan Acquisition Corp., a Delaware
corporation with its principal place of business at 7 Kimball Lane,  Building A,
Lynnfield,  Massachusetts  01940 ("GAC" and,  together  with GMTI,  "GreenMan"),
Browning  Ferris  Industries,  Inc., a Delaware  corporation  with its principal
place  of  business  at  757  North  Eldridge,  Houston,  Texas  77079  ("BFI"),
Browning-Ferris  Industries of Minnesota, Inc., a Minnesota corporation ("BFIM")
and Browning-Ferris Industries of Georgia, Inc., a Georgia corporation ("BFIG").
BFI, BFIM and BFIG are referred to herein, collectively, as the "Sellers."

                              Preliminary Statement

         WHEREAS,  GAC desires to purchase  and BFIM  desires to sell all of the
issued  and  outstanding  stock of BFI Tire  Recyclers  of  Minnesota,  Inc.,  a
Minnesota  corporation,  ("BTM") and BFIG  desires to sell all of the issued and
outstanding stock of BFI Tire Recyclers of Georgia,  Inc., a Georgia corporation
("BTG");

         NOW, THEREFORE, in consideration of the mutual promises hereinafter set
forth and other good and valuable consideration,  the receipt and sufficiency of
which are hereby  acknowledged,  the  parties  hereto,  intending  to be legally
bound, hereby agree as follows:

         1.       The Stock Purchase

                  1.01  Consummation of the Stock  Purchase.  At the closing (as
hereinafter defined),  the date thereof being referred to herein as the "Closing
Date",   BFIM  and  BFIG,   respectively   shall  deliver  to  GAC  certificates
representing  all of the issued and  outstanding  shares of capital stock of BTM
and BTG (the "Stock")  owned by each of them.  Such  certificates  shall be duly
endorsed in blank for transfer or with stock powers  attached and duly  executed
in blank,  together with all such other documents as may be required to effect a
valid transfer to GAC of all the Stock.

                  1.02 Excluded Assets. As of the Closing Date neither of BTM or
BTG (collectively,  the "Facilities" and each, individually, a "Facility") shall
have  any  ownership  or  possessory  interests  in,  (i)  the  use of the  name
"Browning-Ferris"  or any name similar or related thereto,  (ii) any trade marks
or other intellectual property of BFI, including any rights to personal computer
or  mainframe  software  which  arise  solely  by  virtue  of  BTM's  and  BTG's
affiliation  with  Sellers  (including  without  limitation  all  BFI  corporate
software  systems)  but  excluding  all other  rights to  personal  computer  or
mainframe software, (iii) cash, or (iv) any claims for property damage, personal
injury,  business  interruption  or other losses  suffered as a result of a fire
occuring on or about December 5, 1993 at BTG's premises in Jackson, Georgia.


                                                         

<PAGE>



                  1.03  Purchase  Price and  Payment.  The  purchase  price (the
"Purchase  Price") for the Stock shall be a sum equal to (a) Three  Million Five
Hundred Thousand Dollars  ($3,600,000) plus (b) an amount equal to Final Working
Capital (as hereafter defined). The Purchase Price shall be paid as follows:

                                    (i) the sum of $650,000 has previously  been
paid to BFI and BFI hereby acknowledges the receipt thereof; and

                                    (ii)   the  sum  of   $2,950,000   plus  the
Estimated Working Capital (as hereafter  defined) will be paid at the closing by
delivery  to BFI of a  promissory  note of GAC  payable to the order of BFI (the
"Note"), said Note to be substantially in the form attached hereto as Exhibit A.

                  1.04 The Closing.  The Closing shall take place at the offices
of  Sullivan &  Worcester  LLP,  One Post Office  Square,  at 9:00 a.m.  Eastern
Daylight Savings Time, on June 27, 1997, or at such other place, time or date as
may be mutually agreed upon in writing by the parties hereto.

                  1.05     Post-Closing Adjustment.

                           (a) On the Closing Date,  BFI shall provide  GreenMan
(1) an estimate  ("Estimated  Working Capital"),  as of the Closing Date, of the
sum of (i) all Accounts  Receivable,  (ii) the book value of the spare parts and
any other inventory of the Facilities  ("Inventory")  and (iii) all deposits and
prepaid items of the  Facilities and (2) a schedule of the items included in the
Estimated Working Capital;

                           (b) Within  forty-five  (45) days  after the  Closing
Date,  BFI shall deliver to GreenMan a final  schedule and  calculation  ("Final
Working  Capital") of all Accounts  Receivable  and  Inventory as of the Closing
Date; and

                           (c) Within ten (10) days  thereafter,  Sellers  shall
deliver to GreenMan immediately available funds in the amount by which the Final
Working  Capital is less than the Estimated  Working  Capital or GreenMan  shall
deliver to BFI a second  promissory note in  substantially  the form of the Note
attached  hereto as Exhibit A in the amount by which the Final  Working  Capital
exceeds the Estimated Working Capital.

                  1.06   Accounts   Receivable.   As  used   herein,   "Accounts
Receivable" shall mean the sum of:

                           (a)  all  accounts   receivable  of  the  Facilities,
excluding  amounts due the  Facilities by GMTI and excluding any portion of such
accounts  receivable  due solely on account of services for which the Facilities
will provide services after the Closing, discounted by seven percent (7%); plus

                           (b) accounts receivable due BTG by GMTI.


                                        2

<PAGE>



         2.       Representations of Sellers

                  The Sellers represent and warrant to GAC and GMTI that:

                  2.01   Organization.   BFI,  BFIM,   BFIG,  BTM  and  BTG  are
corporations  duly  organized,  validly  existing and in good standing under the
laws of the States of  Delaware,  Minnesota,  Georgia,  Minnesota  and  Georgia,
respectively,  and have all  requisite  corporate  power and authority to own or
lease its respective properties,  to carry on their respective businesses as now
being  conducted,  to execute  and deliver  this  Agreement  and the  agreements
contemplated herein , and to consummate the transactions contemplated hereby and
thereby.  Each  of BTM  and BTG is duly  qualified  to do  business  and in good
standing  in all  jurisdictions  in  which  its  ownership  of  property  or the
character of its business requires such qualification except where failure to be
so qualified or to be in such good  standing  would not have a material  adverse
effect on the business,  properties  or finances of the BTM and BTG,  taken as a
whole. A true and complete list of such  jurisdictions  is set forth in Schedule
2.01.  Certified copies of the Certificate of  Incorporation  and By-laws of BTM
and BTG, as amended to date,  have been  previously  delivered to GreenMan,  are
complete  and  correct,  and no  amendments  have been made thereto or have been
authorized since the date thereof.

                  2.02     Capitalization.

         On the date hereof,  the  authorized  capital  stock  (hereinafter  the
"Capital  Stock"),  the  number of  shares of each  class  that are  issued  and
outstanding  (including treasury shares), and the number of shares of each class
that are reserved for issuance with respect to BTM and BTG shall be as set forth
on Schedule 2.02 hereto. All such issued and outstanding shares of Capital Stock
have been and on the Closing  Date will be duly and  validly  issued and are, or
will be on such  date,  fully  paid and  non-assessable.  Except as set forth in
Schedule  2.02  attached  hereto,  there are not  outstanding  (i) any  options,
warrants or other  rights to purchase  any Capital  Stock;  (ii) any  securities
convertible  into or  exchangeable  for shares of such stock; or (iii) any other
commitments  of any kind for the issuance of additional  shares of Capital Stock
or options, warrants or other securities of the Facilities. On the Closing Date,
there will not be  outstanding  (i) any  options,  warrants  or other  rights to
purchase any Capital Stock; (ii) any securities convertible into or exchangeable
for shares of such  stock;  or (iii) any other  commitments  of any kind for the
issuance of  additional  shares of capital  stock or options,  warrants or other
securities of BTM and BTG.

                  2.03 Authorization.  The execution and delivery by the Sellers
of this Agreement and the agreements  provided for herein,  and the consummation
by the Sellers of all transactions  contemplated hereunder and thereunder by the
Sellers,  have been duly authorized by all requisite  shareholder,  director and
other  corporate  action.  This Agreement has been duly executed by the Sellers.
This Agreement and all other agreements and written obligations entered into and
undertaken  in  connection  with the Stock  Purchase and all other  transactions
contemplated  hereby to which the Sellers are parties  constitute  the valid and
legally  binding   obligations  of  the  Sellers  enforceable  against  them  in
accordance with their respective terms,  except as enforcement may be limited by
applicable  equitable principles or by bankruptcy,  insolvency,  reorganization,
moratorium or similar laws effecting creditors' rights generally, and

                                        3

<PAGE>



by the exercise of judicial discretion. The execution,  delivery and performance
by the Sellers of this Agreement and the agreements provided for herein, and the
consummation  by the Sellers of the Stock  Purchase  and all other  transactions
contemplated hereby and thereby,  will not, with or without the giving of notice
or the passage of time or both,  (a) violate the  provisions of any law, rule or
regulation  applicable  to  the  Sellers  or the  Facilities;  (b)  violate  the
provisions of the respective  Certificates  of  Incorporation  or By-laws of the
Sellers or the Facilities;  or (c) violate any judgment,  decree, order or award
of any  court,  governmental  body or  arbitrator  by which the  Sellers  or the
Facilities or any of their assets or properties are bound;  or (d) conflict with
or  result  in the  breach  or  termination  of any  term or  provision  of,  or
constitute  a default  under,  or cause  any  acceleration  under,  or cause the
creation of any lien, charge or encumbrance upon the properties or assets of the
Facilities  pursuant  to,  any  indenture,  mortgage,  deed of  trust  or  other
agreement or  instrument to which any of the Sellers are parties or by which the
BTM or BTG or their assets is or may be bound.  Schedule  2.03  attached  hereto
sets forth a true,  correct and complete  list of all consents and  approvals of
third  parties  that are required in  connection  with the  consummation  by the
Sellers  of the Stock  Purchase  and the  performance  by the  Sellers  of their
obligations  under  this  Agreement.   Notwithstanding   the  foregoing  or  any
provisions of this Agreement to the contrary,  Sellers make no representation or
warranty, and expressly disclaim any representation or warranty, with respect to
whether the  consent of any  government  entity or third party is required  with
respect  to any  Permit  in  connection  with the  continued  operations  of the
Facilities  after   consummation  of  the  transactions   contemplated  by  this
Agreement.

                  2.04     Financial Data.

         Attached  hereto as  Schedule  2.04 is  certain  financial  information
("Financial  Data") provided  previously by BFI to GreenMan with respect to each
Facility.  Such  Financial  Data is true,  complete and accurate in all material
respects and was  prepared in  accordance  with  generally  accepted  accounting
principles  (except  for the  absence  of  footnote  disclosure  and  for  other
differences from generally accepted accounting  principles described on Schedule
2.04) applied on a consistent  basis,  and the Financial Data fairly  represents
the  financial  information  set forth  therein,  in accordance  with  generally
accepted  accounting  principles for the periods indicated and has been compiled
consistent  with past  practice  from the  internal  accounting  records  of the
respective  Facilities without audit. The Financial Data does not constitute any
warranty with respect to future results of operations of any of the  Facilities.
The internal accounting records of the Facilities from which such Financial Data
has been  compiled has been  maintained  on a  consistent  basis in all material
respects  by  Sellers.  The date of  Financial  Data is  referred to herein as a
"Financial Data Date."

                  2.05 Absence of Undisclosed Liabilities.  Except as and to the
extent (a) reflected and reserved  against in the Current Balance Sheet, (b) set
forth on Schedule 2.05 attached  hereto,  or (c) incurred in the ordinary course
of business  after the date of the  Current  Balance  Sheet and not  material in
amount,  either  individually  or in the  aggregate,  to the  best  of  Sellers'
knowledge,  each of the Facilities  has no liability or  obligation,  secured or
unsecured, whether accrued, absolute, contingent, unasserted or otherwise, which
is material to the condition (financial or otherwise) of the assets, properties,
business or prospects of the Facilities.  For purposes of this Subsection  2.05,
"material" means, with regard to any specific liability or

                                        4

<PAGE>



obligation,  any  amount  in  excess  of  $25,000  and with  regard  to all such
liabilities and obligations in the aggregate, any amount in excess of $50,000.

                  2.06 Litigation. Except as set forth on Schedule 2.06 attached
hereto (a) there is no action, suit or proceeding to which any of the Facilities
is a party pending or, to the best knowledge of the Sellers,  threatened  before
any court or governmental agency, authority, body or arbitrator; (b) none of the
Facilities  has not been  permanently  or  temporarily  enjoined  by any  order,
judgment or decree of any court or any  governmental  agency,  authority or body
from  engaging in or continuing  any conduct or practice in connection  with the
business,  assets,  or  properties  of the  Facilities;  and (c) there is not in
existence  on the date  hereof  any  order,  judgment  or decree  of any  court,
tribunal or agency  enjoining or  requiring  any of the  Facilities  to take any
action of any kind with respect to its business, assets or properties.

                  2.07  Insurance.  Schedule 2.07  attached  hereto sets forth a
true, correct and complete list of all fire, theft, casualty, general liability,
workers compensation,  business interruption,  product liability, automobile and
other insurance  policies  maintained by each Facility and of all life insurance
policies  maintained  by each  Facility  on the  lives of any of its  employees,
specifying  the type of  coverage,  the amount of  coverage,  the  premium,  the
insurer  and  the  expiration  date  of  each  such  policy  (collectively,  the
"Insurance  Policies").  True,  correct  and  complete  copies of all  Insurance
Policies  have  been  previously  delivered  by the  Sellers  to  GreenMan.  The
Insurance  Policies  are in full  force  and  effect.  All  premiums  due on the
Insurance  Policies or renewals thereof have been paid through the Closing Date,
and there is no default by any of the  Facilities  under the Insurance  Policies
nor any default by any other party to the  Insurance  Policies  that is known by
any  of  the  Facilities.  To the  best  of  Sellers'  knowledge,  there  are no
outstanding  recommendations  by any issuer of the Insurance  Policies or by any
Board of Fire Underwriters or other similar body exercising similar functions or
by any governmental  authority  exercising  similar  functions which requires or
recommends  any  changes in the  conduct of the  business  of, or any repairs or
other work to be done on or with respect to any of the  properties or assets of,
the Facilities.

                  2.08     Leases; Real Estate.

                           (a) Schedule 2.08 attached  hereto sets forth a true,
correct and complete  list as of the date hereof of all leases of real  property
to  which  each of BTM or BTG is a party  (collectively,  the  "Leases").  True,
correct and complete copies of all Leases and all amendments,  modifications and
supplemental agreements thereto have previously been delivered by the Sellers to
GreenMan.  The Leases are in full force and effect, are, to the best of Sellers'
actual knowledge, binding and enforceable against each of the parties thereto in
accordance with their respective terms,  except as may be limited by the laws of
bankruptcy and general principals of equity and, except as set forth on Schedule
2.08,  have not been modified or amended since the date of delivery to GreenMan.
Sellers,  BTM and BTG have not received any written notice from any party to any
Lease  claiming that a Facility is in default  thereunder  and that such default
remains  uncured.  Except as set forth on Schedule 2.08,  there has not occurred
any event which would constitute a material breach of or material default in the
performance  of any covenant,  agreement or condition  contained in any Lease by
Sellers,  BTM or BTG, nor has there occurred any event which with the passage of
time or the giving of notice or both would constitute such a

                                        5

<PAGE>



material  breach  or  material  default  by  Sellers,  BTM or  BTG.  None of the
Facilities is obligated to pay any leasing or brokerage commission (which is not
disclosed on Schedule 2.08 attached hereto) relating to any Lease and, except as
set forth on Schedule  2.08,  currently  has no obligation to pay any leasing or
brokerage  commission  upon the  renewal  of any  Lease.  Except as set forth on
Schedule  2.08, no  obligations  relating to  construction,  alteration or other
leasehold   improvement   work  with  respect  to  any  of  the  Leases  remains
outstanding.

                           (b) Except as shown on  Schedule  2.08,  there are no
actual or currently existing potential  material  environmental  hazards on real
property (the "Properties") at any time owned,  leased or operated by any of the
Facilities.

                  2.09     Title to Assets.

                           (a) Each of the  Facilities  has good and  marketable
title to all of its properties and assets,  real, personal and mixed,  including
those  reflected  in the  Financial  Data Date,  free and clear of any  security
interests,  mortgages,  pledges, liens, encumbrances,  restrictions, or charges,
except for (i) those described on Schedule 2.09(a) attached hereto and made part
hereof,  (ii) liens shown on the Current  Balance  Sheet or the Notes thereto as
securing  specified  liabilities  set forth  therein,  with  respect to which no
material  default exists (except for defaults cured prior to the  declaration of
default thereon),  and (iii) minor  imperfections of title and encumbrances,  if
any, which are not substantial in character,  amount,  or extent, do not detract
from the value of the properties  subject thereto,  or interfere with the use of
the properties for the purposes for which they are presently  used, or otherwise
impair the Facilities'  operations,  and have arisen only in the ordinary course
of business

                           (b)  Schedule  2.09(b)  contains a true and  complete
list  and  legal  description  of each  parcel  of real  property  owned  by the
Facilities and a general  description  of each building  situated  thereon.  The
Seller has  heretofore  furnished to GreenMan  true and  complete  copies of all
deeds, other instruments of title and policies of title insurance indicating and
describing the ownership of such real property, as well as copies of any surveys
or environmental reports relating thereto.

                  2.10  Inventory.  Schedule 2.10  attached  hereto sets forth a
true,  correct and complete  list of the  Inventory  as of the date hereof.  The
Inventory  consists  of items of a quality  and  quantity  which  are  usable or
saleable in the ordinary course of the business conducted by the Facilities. The
value of all items of obsolete  materials  and of  materials  of below  standard
quality  have been  written  down to  realizable  market value and the values at
which such inventory is carried reflect the normal inventory valuation policy of
the  Facilities  of stating  inventory at the lower of cost or market value on a
first in first out (FIFO) basis in accordance with GAAP.

                  2.11 Accounts  Receivable.  Schedule 2.11 attached hereto sets
forth a true,  correct  and  complete  list of the  accounts  receivable  of the
Facilities  as of a date not more than five  business  days prior to the Closing
Date (the  "Accounts  Receivable"),  including the aging  thereof.  All Accounts
Receivable  arose out of the sales of  inventory  or  services  in the  ordinary
course of business.


                                        6

<PAGE>



                  2.12  Tax  Matters.  The  Facilities  are not  subject  to any
federal,  state,  local or foreign tax liablity of any kind  whatsoever  for any
periods prior to the Closing or any assessment,  interest, penalty or deficiency
relating thereto.  There are no tax liens (other than for ad-valorem and similar
taxes which are not past due) or taxes on any of the assets of the Facilities.

                  2.13  Books and  Records.  The  general  ledgers  and books of
account of each  Facility,  and all other books and records of each Facility are
in all  material  respects  complete  and  correct and have been  maintained  in
accordance  with good business  practice and in accordance  with all  applicable
procedures required by laws and regulations.

                  2.14     Contracts and Commitments.

                           (a) Schedule  2.14 attached  hereto  contains a true,
complete  and  correct  list of all  written,  and a  description  of all  oral,
contracts  and  agreements  of  the  types  listed  below   (collectively,   the
"Contracts"):

                                    (i)   all   loan   agreements,   indentures,
mortgages  and  guaranties to which a Facility is a party or by which a Facility
or any of its property is bound;

                                    (ii) all pledges,  conditional sale or title
retention  agreements,  security agreements,  obligations relating to equipment,
personal property leases and lease purchase  agreements to which a Facility is a
party or by which a Facility or any of its property is bound;

                                    (iii) all contracts, agreements, commitments
and purchase orders to which a Facility is a party or by which a Facility or any
of its  property  is bound and which  (A)  involve  payments  or  receipts  by a
facility  of more than  $25,000 in the case of any single  contract,  agreement,
commitment or purchase order under which full  performance  (including  payment)
has not been  rendered  by all  parties  thereto  or (B)  which  may  materially
adversely  affect the condition  (financial  or  otherwise)  or the  properties,
assets, business or prospects of each Facility;

                                    (iv) all collective  bargaining  agreements,
employment and consulting agreements, executive compensation plans, bonus plans,
deferred  compensation  agreements,  pension plans,  retirement plans,  employee
stock  option or stock  purchase  plans  and group  life,  health  and  accident
insurance  and  other  employee  benefit  plans,  agreements,   arrangements  or
commitments  to which a Facility is a party or by which a Facility or any of its
property is bound;

                                    (v)   all   agency,    distributor,    sales
representative,  franchise or similar  agreements to which a Facility is a party
or by which a Facility or any of its property is bound;

                                    (vi) all contracts or  agreements  between a
Facility and any  affiliate  thereof (as such term is defined in the  Securities
Act of 1933, as amended, and the rules

                                        7

<PAGE>



and regulations promulgated thereunder) (each, an "Affiliate"),  including,  but
not limited to, any of BFI, BFIM, BFIG or their Affiliates;

                                    (vii)  all  leases  for  personal  property,
whether  operating,  capital or  otherwise,  under which a Facility is lessor or
lessee;

                                    (viii) all contracts or agreements  relating
to past disposal of waste by each Facility (whether or not hazardous);

                                    (ix)  all  contracts,  agreements  or  other
arrangements  imposing a  non-competition  or  non-solicitation  obligation on a
Facility;

                                    (x)  all   confidentiality   or  proprietary
information  agreements  with  respect  to  the  confidential  information  of a
Facility or any third party to which a Facility is a party in any capacity; and

                                    (xi)  any  other   material   agreements  or
contracts entered into by a Facility.

                           (b)      Except as set forth on Schedule 2.14:

                                    (i) each  Contract  is a valid  and  binding
agreement of the  respective  Facility,  enforceable  against  such  Facility in
accordance  with its  terms,  and  Sellers  do not have any  knowledge  that any
Contract is not a valid and binding agreement of the other parties thereto;

                                    (ii)  Each   Facility  has   fulfilled   all
material  obligations  required pursuant to the Contracts to have been performed
by each  Facility  on its part prior to the date  hereof,  and  Sellers  have no
reason to believe that each Facility will not be able to fulfill,  when due, all
of its  obligations  under all material  Contracts  which remain to be performed
after the date hereof;

                                    (iii)  No  Facility  is in  breach  of or in
default under any material  Contract,  and no event has occurred  which with the
passage  of time or giving of notice or both  would  constitute  such a default,
result in a loss of rights under the  Contracts or result in the creation of any
lien, charge or encumbrance, thereunder or pursuant thereto;

                                    (iv) to the best knowledge of Sellers, there
is no existing  breach or default by any other party to any  material  Contract,
and no event has occurred  which with the passage of time or giving of notice or
both would constitute a default by such other party,  result in a loss of rights
or result in the  creation  of any lien,  charge or  encumbrance  thereunder  or
pursuant thereto;

                                    (v) there are not and,  since March 31, 1997
have not been,  any claims of a non-routine  nature by customers of any Facility
under any warranties, whether express or implied;

                                        8

<PAGE>




                                    (vi)  No  Facility  is   restricted  by  any
Contract from carrying on its business anywhere in the world; and

                           (c)  Except as set forth on  Schedules  2.04 or 2.14,
the  continuation,  validity  and  effectiveness  of each  Contract  will not be
affected by the Stock Purchase or other transaction contemplated hereby.

                           (d)  True,   correct  and  complete   copies  of  all
Contracts have previously been delivered by Sellers to GreenMan.

                           (e) For purposes of this  Section 2.14 and  elsewhere
in this Agreement,  the term "material  Contract" means any contract which has a
value,  either in terms of products  to be sold,  services  to be  performed  or
otherwise, in excess of $25,000.

                  2.15  Compliance  with  Agreements and Laws. Each Facility has
all  requisite  licenses,  permits and  certificates,  including  environmental,
health and safety permits,  from federal,  state and local authorities necessary
to conduct  its  business  and own and  operate  its assets  (collectively,  the
"Permits"),  except  where a failure  to hold a Permit  does not have a material
adverse effect on an Facility.  Schedule 2.15 attached hereto sets forth a true,
correct and complete list of all such Permits,  copies of which have  previously
been delivered by Sellers to GreenMan.  To the best knowledge of Sellers,  there
is no material  violation  by any Facility of any law,  regulation  or ordinance
(including,  without  limitation,  laws,  regulations or ordinances  relating to
building, zoning, environmental, disposal of hazardous substances, land use, air
pollution or similar matters) applicable to it or its properties.

                  2.16     Employee Relations.

                           (a) To the best  knowledge  of  Sellers,  each of the
Facilities is in material compliance with all federal,  state and municipal laws
respecting  employment  and  employment  practices,   terms  and  conditions  of
employment,  and  wages  and  hours,  and is not  engaged  in any  unfair  labor
practice,  and there are no arrears in the  payment of wages or social  security
taxes (other than amounts accrued in the regular and ordinary course of business
since the last regular payment of such wages and taxes).

                           (b)  Except as set forth on  Schedule  2.16  attached
hereto:

                                    (i)  none  of the  employees  of each of the
Facilities is represented by any labor union;

                                    (ii)  there  is  no  unfair  labor  practice
complaint  against  any of the  Facilities  pending  before the  National  Labor
Relations Board or any state or local agency;

                                    (iii)  there is no pending  labor  strike or
other material labor trouble affecting any of the Facilities (including, without
limitation, any organizational drive);


                                        9

<PAGE>



                                    (iv) there is no  material  labor  grievance
pending against any of the Facilities;

                                    (v)  there  is  no  pending   representation
question respecting the employees of any of the Facilities;

                                    (vi)  there  are  no   pending   arbitration
proceedings arising out of or under any collective bargaining agreement to which
any of the  Facilities  is a party,  or any  basis for which a claim may be made
under any  collective  bargaining  agreement to which any of the Facilities is a
party; and

                                    (vii)  None  of  the   Facilities   has  any
continuing  obligation  for health,  life,  medical  insurance or other  similar
fringe benefits to any former employee thereof;

                           (c) Sellers have previously delivered a true, correct
and complete list of the current  payroll of each of the  Facilities,  including
the job title and salary or wage rates of each employee,  showing separately for
each such person who received an annual  salary in excess of $25,000 the amounts
paid or payable as salary and bonus payments for the fiscal year ended September
30, 1996.

                           (d) For purposes of this  Subsection  2.16,  the term
"employee"  shall be  construed to include  sales  agents and other  independent
contractors who spend a majority of their working time on the business of any of
the Facilities.

                  2.17     Absence of Certain Changes or Events.

                           (a)  Except as set forth on  Schedule  2.17  attached
hereto, since the Financial Data Dates relating to each Facility, the respective
Facility  has not  entered  into any  transaction  which is not in the usual and
ordinary  course of business  without  limiting the generality of the foregoing,
has not:

                                    (i) incurred any obligation or liability for
borrowed money;

                                    (ii)  discharged  or  satisfied  any lien or
encumbrance or paid any obligation or liability  other than current  liabilities
reflected in the Current Balance Sheet;

                                    (iii)  mortgaged,  pledged or  subjected  to
lien, charge or other encumbrance any of its properties or assets;

                                    (iv)   sold  or   purchased,   assigned   or
transferred any of its tangible assets or cancelled any debts or claims,  except
for  inventory  sold and raw  materials  and supplies  purchased in the ordinary
course of business;

                                    (v)  made  any  material   amendment  to  or
termination  of any  material  Contract or done any act or omitted to do any act
which would cause the breach of any material Contract;

                                       10

<PAGE>




                                    (vi) suffered any losses of personal or real
property,  whether insured or uninsured,  and whether or not in the control of a
Facility  in excess of  $25,000  in the  aggregate,  or waived any rights of any
value;

                                    (vii)  authorized any declaration or payment
of dividends or  distributions or paid any such dividends or  distributions,  or
authorized  any transfer of assets of any kind  whatsoever to the Sellers or any
other party with respect to any shares of capital stock;

                                    (viii)  received  notice of any  litigation,
warranty claim or products liability claim;

                                    (ix)  engaged any new  employee for a salary
in excess of $25,000 per annum:

                                    (x) made, or committed to make, any material
changes in the compensation payable to any officer, director,  employee or agent
of a Facility,  or any bonus payment or similar arrangements made to or with any
of such officers, directors, employees or agents;

                                    (xi)  made any  material  alteration  in the
manner of keeping  the books,  accounts  or  records  of a  Facility,  or in the
accounting  practices therein  reflected,  including,  without  limitation,  any
changes in the method of  calculating  reserves for  doubtful  accounts or sales
returns;  or (xii)  suffered  any  material  adverse  change in the  results  of
operations,  condition  (financial or otherwise),  assets,  liabilities (whether
absolute, accrued, contingent or otherwise) or business of a Facility.

                           (b)  Sellers  have no  knowledge  of any  existing or
threatened  occurrence,  event  or  development  which,  as far  as  can  now be
reasonably  foreseen,  is  likely  to  have a  material  adverse  effect  on the
business, properties, assets, condition (financial or otherwise) or prospects of
the Facilities;  provided,  however that no  representation  or warranty is made
with  respect to general  business,  economic  or  technological  conditions  or
developments which may affect any Facility.

                  2.18  Customers.  Schedule 2.18  attached  hereto sets forth a
true,  correct and complete  list of the names and addresses of each customer of
each Facility which  accounted for more than 5% of the revenues of each Facility
(a) in the fiscal year ended September 30, 1996 and (b) for the first six months
of the fiscal year ending  September  30, 1997.  Except as set forth on Schedule
2.18 attached hereto,  none of Sellers or Facilities have received  notification
that any of Facilities' customers intends to discontinue its relationship with a
Facility.

                  2.19  Suppliers.  Schedule 2.19  attached  hereto sets forth a
true,  correct  and  complete  list of the  names and  addresses  of each of the
suppliers of each Facility  which  accounted for a dollar volume of purchases by
each  facility in excess of $25,000 for (x) the fiscal year ended  September 30,
1996 and (y) the first six months of the fiscal year ending September

                                       11

<PAGE>



30, 1997.  Except as set forth on Schedule 2.19 attached hereto,  no Facility is
more than 60 days past due in any trade accounts payable or other payments owing
to any supplier to a Facility.

                  2.20  Prepayments and Deposits.  Schedule 2.20 attached hereto
sets forth all customers of the Facilities  from whom  prepayments  and deposits
have been  received by each  Facility as of the date hereof,  for products to be
shipped, or services to be performed, after the Closing Date.

                  2.21   Indebtedness  to  and  from  Officers,   Directors  and
Stockholders.  Except as set forth on Schedule 2.21 attached hereto, neither BTM
or BTG is  indebted,  directly or  indirectly,  to any person who is an officer,
director  or  stockholder  of BTM or BTG or any  Affiliate  thereof  or any such
person in any amount whatsoever other than for salaries for services rendered or
reimbursable  business  expenses,  all of which have been reflected on the books
and records of BTM or BTG previously delivered to GreenMan, and no such officer,
director, stockholder or Affiliate is indebted to BTM or BTG except for advances
made to  employees  of BTM or BTG in the  ordinary  course of  business  to meet
reimbursable business expenses anticipated to be incurred by such obligor.

                  2.22 Banking  Facilities.  Schedule 2.22 attached  hereto sets
forth a true, correct and complete list of:

                           (a) each bank,  savings and loan or similar financial
institution  in which any of the Facilities has an account or safety deposit box
and the numbers of the accounts or safety deposit boxes maintained by any of the
Facilities thereat; and

                           (b) the names of all  persons  authorized  to draw on
each such  account or to have  access to any such safety  deposit box  facility,
together with a description of the authority (and conditions thereof, if any) of
each such person with respect thereto.

                  2.23 Powers of Attorney and  Suretyships.  Except as set forth
on Schedule 2.23 attached hereto,  each of BTM and BTG has no general or special
powers of attorney outstanding (whether as grantor or grantee thereof), nor does
it  have  any  obligation  or  liability  (whether  actual,  accrued,  accruing,
continent or otherwise) as guarantor,  surety,  co-signer,  endorser,  co-maker,
indemnitor or otherwise in respect of the obligation of any person, corporation,
joint venture, association,  organization or other entity, except as endorser or
maker of checks or  letters  of credit,  respectively,  endorsed  or made in the
ordinary course of business.

                  2.24   Regulatory   Approvals.   All   consents,    approvals,
authorizations or other  requirements  prescribed by any law, rule or regulation
which must be obtained or satisfied by the  Facilities  and which are  necessary
for the execution and delivery by the Sellers of this Agreement or any documents
to be executed and delivered by the Sellers in connection herewith are set forth
on Schedule  2.24  attached  hereto and have been,  or prior to the Closing Date
will be, obtained and satisfied. Notwithstanding the foregoing or any provisions
of this Agreement to the contrary,  Sellers make no  representation or warranty,
and expressly disclaim any  representation or warranty,  with respect to whether
the consent of any government entity or third

                                       12

<PAGE>



party is required  with respect to any Permit in  connection  with the continued
operations of the Facilities after consummation of the transactions contemplated
by this Agreement.

                  2.25 Disclosure. The information concerning the Facilities set
forth in this  Agreement,  the Exhibits and  Schedules  attached  hereto and any
document,  statement  or  certificate  furnished  or to be furnished to GreenMan
pursuant hereto or in connection herewith, does not and on the Closing Date will
not contain any untrue  statement of a material fact or omit to state a material
fact required to be stated herein or therein or necessary to make the statements
and facts contained  herein or therein,  in light of the  circumstances in which
they are made, not false and misleading.  Copies of all documents  heretofore or
hereafter  delivered or made  available to GreenMan  pursuant to this  Agreement
were or will be complete and accurate copies of such documents.

                  2.26  Disposal  Sites Used.  Schedule  2.26 lists the name and
address of all solid waste  landfills  or transfer  stations to which (i) to the
best  of  Sellers'  knowledge,   the  Facilities  (excluding  any  companies  or
businesses acquired by the Facilities) transported material amounts of municipal
solid  waste in  connection  with the  operation  of its  business,  or (ii) any
company or business acquired by the Facilities has transported  material amounts
of municipal solid waste to the extent any such company or business has provided
records of any such  transportation  to the Sellers,  BTM or BTG.  Schedule 2.26
also states whether any listed  facility is, to the best of Sellers'  knowledge,
currently being remediated or currently  scheduled to undergo  remediation under
the  Comprehensive  Environmental  Response,  Compensation  and Liability Act or
comparable state law.

                  2.27  Employee  Benefit  Plans.  Schedule  2.27  sets  forth a
complete list of all pension, profit sharing, retirement, deferred compensation,
welfare, insurance,  disability,  bonus, vacation pay, severance pay and similar
plans,  programs or  arrangements,  including  without  limitation  all employee
benefit  plans,  as  defined  in  Section 3 of the  Employee  Retirement  Income
Security Act of 1974,  as amended  ("ERISA"),  (the  "Plans")  maintained by the
Facilities.  None of the Facilities maintain or contribute to any "multiemployer
plan" as defined in Section 4001(a)(3) of ERISA, and none of the Facilities have
incurred any material liability under Sections 4062, 4063 or 4201 of ERISA. Each
Plan  maintained  by a Facility  which is intended to be qualified  under either
Section  401(a) or 501(c)(9) of the  Internal  Revenue Code of 1986,  as amended
(the "Code"),  is so qualified.  Each Plan has been administered in all material
respects in accordance with the terms of such Plan and the provisions of any and
all statutes,  orders or governmental  rules or regulations,  including  without
limitation  ERISA and the Code, and to the knowledge of the Sellers  nothing has
been done or  omitted to be done with  respect to any Plan that would  result in
any material  liability  on the part of the  Facility  under Title I of ERISA or
Section 4975 of the Code.  All reports  required to be filed with respect to all
Plans,  including  without  limitation  annual  reports on Form 5500,  have been
timely  filed  except  where the  failure  to so file  would not have a material
adverse  effect on the business,  properties or finances of the  Facilities.  No
"reportable  event" as  defined at  Section  4043 of ERISA,  other than any such
event for which the thirty-day notice period has been waived,  has occurred with
respect to any pension  plan  subject to Title IV of ERISA.  With respect to all
pension plans subject to Title IV of ERISA,  such plans have no unfunded benefit
liabilities,   all  contributions  to  such  plans  under  the  minimum  funding
requirements of Section 412 of the Code have been made and all premium

                                       13

<PAGE>



payments to the Pension Benefit Guaranty  Corporation with respect to such plans
have been made.  All claims for welfare  benefits  incurred by  employees  on or
before the Closing Date are or will be fully  covered by  third-party  insurance
policies or programs.  Except for  continuation of health coverage to the extent
required  under  Section  4980B of the Code or as  otherwise  set  forth in this
Agreement,  there are no obligations  under any welfare plan providing  benefits
after termination of employment.

         3.       Representations of GreenMan

         GMTI and GAC,  jointly and  severally,  represent and warrant to BFI as
follows:

                  3.01  Organization  and  Authority.  GMTI  and  GAC  are  each
corporations  duly  organized,  validly  existing and in good standing under the
laws of the  State of  Delaware,  and have all  requisite  corporate  power  and
authority  to own  their  respective  properties,  to carry on their  respective
businesses as now being conducted, to execute and deliver this Agreement and the
agreements contemplated herein, and to consummate the transactions  contemplated
hereby and thereby.  GMTI is duly  qualified to do business and in good standing
in all  jurisdictions in which its ownership of property or the character of its
business requires such qualification, except where failure to be so qualified or
to be in  such  good  standing  would  have a  material  adverse  effect  on the
business,  properties or finances of GMTI, taken as a whole. Certified copies of
the  Certificates  of  Incorporation  and Bylaws of GMTI and GAC,  as amended to
date,  have been previously  delivered to BFI, are complete and correct,  and no
amendments  have  been  made  thereto  or have  been  authorized  since the date
thereof.  GAC has conducted no business or  operations  prior to the date hereof
except in connection with the transactions contemplated by this Agreement.

                  3.02  Authorization.   The  execution  and  delivery  of  this
Agreement  by GMTI and GAC,  and the  agreements  provided  for herein,  and the
consummation by GMTI and GAC of all transactions  contemplated hereby, have been
duly authorized by all requisite  corporate action. This Agreement has been duly
executed  by GMTI and GAC.  This  Agreement  and all such other  agreements  and
written   obligations  entered  into  and  undertaken  in  connection  with  the
transactions  contemplated  hereby  constitute  the  valid and  legally  binding
obligations of GMTI and GAC,  enforceable against GMTI and GAC respectively,  in
accordance with their respective terms,  except as enforcement may be limited by
applicable  equitable principles or by bankruptcy,  insolvency,  reorganization,
moratorium or similar laws effecting  creditors'  rights  generally,  and by the
exercise of judicial discretion. The execution, delivery and performance of this
Agreement and the agreements  provided for herein,  and the consummation by GMTI
and GAC of the transactions  contemplated hereby and thereby,  will not, with or
without  the giving of notice or the  passage of time or both,  (a)  violate the
provisions of any law, rule or regulation applicable to GMTI or GAC; (b) violate
the provisions of GMTI's or GAC's  Certificate of Incorporation or By-laws;  (c)
violate any judgment,  decree, order or award of any court, governmental body or
arbitrator  by which  GMTI or any of its assets or  properties  are bound or (d)
conflict  with or result in the breach or  termination  of any term or provision
of, or constitute a default under, or cause any acceleration under, or cause the
creation of any lien,  charge or  encumbrance  upon the  properties or assets of
GMTI  and GAC  pursuant  to,  any  indenture,  mortgage,  deed of trust or other
agreement or instrument to which GMTI or GAC is a party or by

                                       14

<PAGE>



which GMTI or GAC or their respective  assets is or may be bound.  Schedule 3.02
attached hereto sets forth a true, correct and complete list of all consents and
approvals of third parties that are required in connection with the consummation
by GMTI or GAC of the  Stock  Purchase  and the  performance  by GMTI and GAC of
their respective obligations under this Agreement.

                  3.03   Regulatory   Approvals.   All   consents,    approvals,
authorizations and other requirements  prescribed by any law, rule or regulation
which must be obtained or satisfied by GMTI,  GAC or GCI and which are necessary
for the  consummation  of the  transactions  contemplated by this Agreement have
been, or will be prior to the Closing Date, obtained and satisfied.

                  3.04     Financial Statements.

                           (a)  GMTI  has  previously  delivered  to BFI (i) its
audited  balance sheet as of May 31, 1996 and the related  statements of income,
stockholders'  equity,  cash flow and  supplementary  schedules  of GMTI for the
fiscal year then ended, (collectively, "GreenMan 1996 Financial Statements") and
(ii) its unaudited February 28, 1997 balance sheet and the related statements of
income,  stockholders'  equity,  cash flow and  supplementary  schedules for the
nine-month  period then ended,  (collectively,  the "GreenMan  Current Financial
Statements").  The GreenMan 1996 Financial  Statements and the GreenMan  Current
Financial Statements  (collectively,  the "GreenMan Financial  Statements") have
been prepared in accordance with GAAP applied  consistently  with past practice,
subject to normal  year-end  adjustments  and the absence of footnotes,  and are
accompanied  by a  certificate  of the Chief  Financial  Officer  of GMTI to the
effect  that  the  GreenMan  Current  Financial   Statements  were  prepared  in
accordance with GAAP,  subject to year-end audit  adjustments and the absence of
footnotes and other related information required by GAAP.

                           (b) The GreenMan Financial  Statements fairly present
in all material respects, as of their respective dates, the financial condition,
retained earnings,  assets and liabilities of GMTI and the results of operations
of GMTI's business for the periods indicated.

                  3.05 Disclosure. The information concerning GreenMan set forth
in this Agreement,  the Exhibits and Schedules attached hereto and any document,
statement or  certificate  furnished or to be furnished to the Sellers  pursuant
hereto or in  connection  herewith,  does not and will not  contain  any  untrue
statement  of a material  fact or omit to state a material  fact  required to be
stated herein or therein or necessary to make the statements and facts contained
herein or therein,  in light of the  circumstances  in which they are made,  not
false and misleading.  Copies of all documents heretofore or hereafter delivered
or made  available  to the Sellers  pursuant to this  Agreement  were or will be
complete and accurate copies of such documents.

         4.       Access to Information; Public Announcements; Consents

                  4.01 Access to Management,  Properties  and Records.  From the
date of this  Agreement  until the Closing  Date,  the Sellers  shall afford the
officers,  attorneys,   accountants  and  other  authorized  representatives  of
GreenMan free and full access upon reasonable advance

                                       15

<PAGE>



notice and during normal  business hours to all management  personnel,  offices,
properties,  books and records of the Facilities, so that GreenMan may have full
opportunity  to  make  such  investigation  as it  shall  desire  to make of the
management,  business,  properties and affairs of the  Facilities,  and GreenMan
shall be  permitted  to make  abstracts  from,  or copies of, all such books and
records. The Sellers shall furnish to GreenMan and/or authorized representatives
designated by GreenMan such financial and operating  data and other  information
as to the business of the Facilities as GreenMan shall reasonably request.

                  4.02     Confidentiality.

                           (a) The Sellers have  furnished  and will continue to
furnish GreenMan with certain  information which is non-public,  confidential or
proprietary in nature.  All  information  furnished to GreenMan,  its directors,
officers,  employees, agents or representatives,  including, without limitation,
attorneys, accountants,  consultants, potential lenders, investors and financial
advisors  (collectively,  "Representatives")  by the  Sellers  or  any of  their
representatives,   and  all  analyses,  compilations,  data,  studies  or  other
documents  prepared by GreenMan or its  representatives  containing  or based in
whole or in part on any such  furnished  information  or  reflecting  GreenMan's
review of, or interest in, BFI and the Facilities is hereinafter  referred to as
"BFI Information." "BFI Information" shall not include any information  publicly
available  through no fault of Sellers.  GreenMan  hereby  agrees to use the BFI
Information  solely in  connection  with the  consummation  of the  transactions
contemplated by this Agreement and to transmit the BFI Information only to those
employees and  representatives of GreenMan who need to know the BFI Information,
except as may  otherwise  be required by  operation  of  applicable  law. If the
Closing  does not occur,  the BFI  Information,  and all copies  thereof will be
returned by GreenMan, its directors,  officers, and employees (but not its other
representatives), without retaining any copies thereof, to Sellers.

                           (b)  GreenMan  has  furnished  and will  continue  to
furnish the Sellers with certain  information which is non-public,  confidential
or  proprietary  in nature.  All  information  furnished to the  Sellers,  their
directors,  officers,  employees, agents or representatives,  including, without
limitation,  attorneys, accountants,  consultants,  potential lenders, investors
and financial advisors  (collectively,  "Representatives") by GreenMan or any of
its  representatives,  and all analyses,  compilations,  data,  studies or other
documents prepared by the Sellers or their  representatives  containing or based
in whole or in part on any such furnished information or reflecting BFI's review
of,  or  interest  in,   GreenMan  is  hereinafter   referred  to  as  "GreenMan
Information."  "GreenMan Information" shall not include any information publicly
available  through  no fault of the  Sellers.  Sellers  hereby  agree to use the
GreenMan   Information  solely  in  connection  with  the  consummation  of  the
transactions  contemplated  by  this  Agreement  and to  transmit  the  GreenMan
Information  only to  those  representatives  of  Sellers  who  need to know the
GreenMan  Information,  except as may  otherwise  be  required by  operation  of
applicable law. If the Closing does not occur, the GreenMan Information, and all
copies  thereof  will be returned by Sellers,  their  directors,  officers,  and
employees  (but not its other  representatives),  without  retaining  any copies
thereof, to GreenMan.


                                       16

<PAGE>



                  4.03 Public Announcements. The parties agree that prior to the
Closing Date any and all public  pronouncements  or other public  communications
concerning  this  Agreement,   and  the  timing,  manner  and  content  of  such
disclosures, shall be subject to the mutual agreement of BFI and GreenMan.

                  4.04  Consents.  Sellers  and  GreenMan  shall  each use their
respective  commercially  reasonable  efforts,  to be deemed to not  include the
renegotiation  of any Permit  terms or the  financial  terms of any  Contract or
Lease,  in  obtaining  any  requisite  governmental  or third party  consents or
authorizations to the consummation of the respective  transactions  contemplated
by this Agreement.

         5.       Pre-Closing Covenants of Sellers

         From and after the date hereof and until the Closing Date:

                  5.01 Conduct of Business.  Sellers shall carry on the business
of the Facilities  diligently and substantially in the same manner as heretofore
and shall not make or  institute  any  materially  new  methods of  manufacture,
purchase,  sale,  shipment  or  delivery,   lease,  management,   accounting  or
operation,  and shall not ship or deliver any  quantity of products in excess of
normal  shipment  or  delivery  levels,  except as agreed to in writing by GMTI,
which agreement shall not be unreasonably  withheld.  All of the property of the
Facilities shall be used, operated, repaired and maintained in a normal business
manner consistent with past practice.

                  5.02 Absence of Material  Changes.  Without the prior  written
consent of GreenMan, which agreement shall not be unreasonably withheld, Sellers
shall not cause or permit any of the Facilities to:

                           (a)  take  any  action  to amend  their  Articles  of
Incorporation or By- Laws;

                           (b)  issue  any  stock,   bonds  or  other  corporate
securities or grant any option or issue any warrant to purchase or subscribe for
any of such securities or issue any securities convertible into such securities;

                           (c) incur any  obligation  or liability  (absolute or
contingent), except current liabilities incurred and obligations under contracts
entered into in the ordinary course of business;

                           (d)  declare or make any payment or  distribution  to
the  stockholders  of the  Facilities  with  respect to its stock or purchase or
redeem any shares of its capital stock;

                           (e) mortgage,  pledge, or subject to any lien, charge
or any other encumbrance any of its assets or properties;

                           (f) sell,  assign,  or  transfer  any of its  assets,
except for inventory sold in the ordinary course of business, at a normal profit
margin;

                                       17

<PAGE>




                           (g)  cancel  any  debts  or  claims,  except  in  the
ordinary course of business;

                           (h) merge or consolidate with or into any corporation
or other entity;

                           (i)  make,  accrue or become  liable  for any  bonus,
profit  sharing or incentive  payment,  except for accruals under existing plans
and  agreements,  if any, or  increase  the rate of  compensation  payable or to
become  payable by it to any of its officers,  directors or employees  except in
the ordinary course of business;

                           (j) make any  election or give any consent  under the
Code  or the tax  statutes  of any  state  or  other  jurisdiction  or make  any
termination,  revocation or  cancellation of any such election or any consent or
compromise or settle any claim for past or present tax due;

                           (k) waive any rights of material value;

                           (l) modify,  amend,  alter or terminate any executory
contract of material value or which is material in amount;

                           (m) take or permit any act or omission constituting a
breach or default  under any  material  contract or agreement by which it or its
properties are bound;

                           (n) fail to use reasonable commercials efforts to (i)
preserve  the  possession  and  control of its  assets,  (ii) retain its present
officers and key  employees,  (iii)  preserve the  relationships  of  consumers,
suppliers and others having  business  relations  with it, and (iv) preserve the
business existing on the date hereof until the Closing Date;

                           (o) fail to operate its  business  and  maintain  its
books,  accounts  and records in the  customary  manner and in the  ordinary and
regular course of business and maintain in good repair their business  premises,
fixtures, machinery, furniture and equipment;

                           (p) enter  into any  lease,  contract,  agreement  or
understanding,  other than those entered into in the ordinary course of business
calling for payments  which in the aggregate do not exceed $25,000 for each such
lease, contract, agreement or understanding;

                           (q) engage any new employee for a salary in excess of
$25,000 per annum;

                           (r)  materially  alter the  terms,  status or funding
condition of any Employee Plan; or

                           (s) commit or agree to do any of the foregoing in the
future.


                                       18

<PAGE>



                  5.03     Communications with Customers and Suppliers.

                           (a)  Unless  instructed   otherwise  by  GreenMan  in
writing,  the Facilities will continue to accept customer orders in the ordinary
course of business and consistent with past practice for all products offered by
the Facilities but expected to be shipped after the Closing Date.

                           (b) the  Facilities  and GreenMan  will  cooperate in
communications  with suppliers and customers to accomplish the Stock Purchase on
the Closing Date.

                  5.04  Compliance  with Laws. The Facilities will comply in all
material  respects with all laws and regulations which are applicable to them or
to the conduct of their  business  and will  perform and comply in all  material
respects with all Contracts.

                  5.05  Continuing  Obligation  to Inform.  From the date hereof
through and including the Closing Date,  the Sellers will deliver or cause to be
delivered to GreenMan supplemental  information  concerning events subsequent to
the date hereof which would render any statement,  representation or warranty in
this  Agreement or any  information  contained in any Schedule  attached  hereto
inaccurate,  misleading or incomplete in any material  respect;  provided,  that
except  as  specified  in  Subsection  6.08  hereof,  none of such  supplemental
information  shall constitute an amendment of any statement,  representation  or
warranty  in this  Agreement  or any  Schedule,  Exhibit or  document  furnished
pursuant hereto.

                  5.06 Exclusive Dealing.  Sellers will not from the date hereof
through the Closing Date, directly or indirectly, through any officer, director,
agent or otherwise,  (a) solicit,  initiate or encourage submission of proposals
or offers  from any person  relating to an  acquisition  or purchase of all or a
material portion of the assets of or an equity interest in the Facilities or any
merger,   consolidation  or  business  combination  with  the  Facilities,   (b)
participate in any  discussions  or  negotiations  regarding,  or furnish to any
other person, any non-public  information with respect to or otherwise cooperate
in any way with, or assist or  participate  in,  facilitate  or  encourage,  any
effort or attempt by any other person to do or seek any of the foregoing, or (c)
withdraw  their  intention  to sell the  Facilities.  Sellers  agree to promptly
notify  GreenMan of any such  proposal or offer,  or any inquiry or contact with
respect thereto received by Sellers.

                  5.07  Reports,  Taxes.  Sellers  will duly and timely file all
reports or returns required to be filed with federal,  state,  local and foreign
authorities and will promptly pay all federal,  state,  local and foreign taxes,
assessments  and  governmental  charges  levied or assessed  upon them or any of
their properties  (unless  contesting such in good faith and adequate  provision
has been made therefor).

         6.       Conditions to Obligations of GreenMan

         The  obligations  of GreenMan  under this  Agreement are subject to the
fulfillment, at the Closing Date, of the following conditions precedent, each of
which may be waived in writing in the sole discretion of GreenMan:


                                       19

<PAGE>



                  6.01  Continued  Truth of  Representations  and  Warranties of
Sellers;  Compliance with Covenants and  Obligations.  The  representations  and
warranties  of the Sellers  shall be true in all material  respects on and as of
the Closing Date as though such  representations and warranties were made on and
as of such  date,  except  for any  changes  permitted  by the  terms  hereof or
consented to in writing by GreenMan.  Sellers shall have  performed and complied
in all material  respects with all terms,  conditions,  covenants,  obligations,
agreements  and  restrictions  required by this  Agreement  to be  performed  or
complied with by each of them prior to or at the Closing Date.

                  6.02  Performance  by BFI. At the Closing,  the Sellers  shall
have delivered to GreenMan  certificates  signed by a duly authorized officer of
each of them, respectively, as to its compliance with Subsection 6.01 hereof.

                  6.03  Corporate   Proceedings.   All   corporate,   and  other
proceedings  required  to be taken on the part of the Sellers to  authorize  and
carry out this Agreement shall have been taken.

                  6.04  Governmental   Approvals.   All  governmental  agencies,
departments, bureaus, commissions and similar bodies, the consent, authorization
or approval of which is  necessary  under any  applicable  law,  rule,  order or
regulation for the  consummation of the Stock Purchase,  and the consummation of
the  transactions  contemplated  by  this  Agreement  and the  operation  of the
business of the  Facilities by GreenMan  shall have  consented  to,  authorized,
permitted or approved such transactions.

                  6.05 Consent of Third Parties. Sellers shall have received all
requisite  consents and approvals of all third parties whose consent or approval
is required in order for Sellers to consummate the transactions  contemplated by
this Agreement,  including without limitation,  those set forth on Schedule 2.04
attached hereto.

                  6.06 Adverse Proceedings. No action or proceeding by or before
any court or other governmental body shall have been instituted or threatened by
any  governmental  body or  person  whatsoever  which  shall  seek to  restrain,
prohibit or invalidate the transactions  contemplated by this Agreement or which
might  affect  the right of  GreenMan  to own or  operate  the  business  of the
Facilities after the Closing.

                  6.07  Opinions of Counsel.  GreenMan  shall have  received the
opinion of Edward C.  Norwood,  counsel to the Sellers,  dated as of the Closing
Date, in substantially the form attached hereto as Exhibit B.

                  6.08 Update. Sellers shall have provided GreenMan with a true,
correct and complete list and amount,  as of the last  business day  immediately
preceding the Closing Date, of the Contracts.

                  6.09  Non-Competition  Agreement.  On or prior to the  Closing
Date,  GreenMan,  on the one hand and  Sellers,  on the other  hand,  shall have
entered into a non-compete agreement, in substantially the form attached  hereto
as Exhibit C, providing in general

                                       20

<PAGE>



for Sellers and their Affiliates not to engage in the business of the Facilities
in the area set forth in the agreement for a period of three (3) years after the
Closing Date.

                  6.10  Resignations.  Sellers  shall  have,  on or prior to the
Closing Date, delivered to GreenMan resignations from the officers and directors
of the Facilities set forth on Schedule 6.10 attached hereto.

                  6.11  Indebtedness.  BFI  will  eliminate  all  of  the  fixed
liabilities of BTM and BTG (including trade payables,  tax obligations,  accrued
expenses and intercompany  payables)  existing as of the Closing Date except for
outstanding   obligations  not  yet  due  under  the  curb  and  gutter  capital
improvement assessment to which BTM is subject .

                  6.12 Ford Heights  Option.  BFI shall have, on or prior to the
Closing Date,  caused to be executed and  delivered to GMTI an exclusive  Option
Agreement relating to BFI's Ford Heights, Illinois facility in substantially the
form of Exhibit D attached hereto.

                  6.13 Permit Side Letter.  Sellers  shall have,  on or prior to
the Closing  Date,  delivered to GreenMan a Permit Side Letter in  substantially
the form of Exhibit E attached hereto.

                  6.14 Closing  Deliveries.  GreenMan  shall have received at or
prior to the Closing such documents, instruments or certificates as GreenMan may
reasonably request including, without limitation:

                           (a) such  certificates of Sellers'  officers and such
other  documents  evidencing  satisfaction  of the conditions  specified in this
Section 6 as GreenMan shall reasonably request;

                           (b)  certificates  of the  Secretary  of State of the
States of  Delaware,  Minnesota  and  Georgia,  as  applicable,  as to the legal
existence and good standing (including tax) of BFIM, BFIG, BTM and BTG;

                           (c)  certificates  of the  Secretaries of the Sellers
attesting to the incumbency of the Sellers'  officers,  the  authenticity of the
resolutions authorizing the transactions  contemplated by this Agreement and the
authenticity and continuing validity of the charter documents delivered pursuant
to Subsection 2.01;

                           (d) where required by each of the applicable  Leases,
estoppel  certificates  from each lessor from whom Sellers or Facilities  leases
real or  personal  property  consenting  to the  Stock  Purchase  and the  other
transactions contemplated hereby, and representing that there are no outstanding
claims against Sellers or Facilities under such Leases;

                           (e) such other documents, instruments or certificates
as may be reasonably requested by GreenMan or its counsel.


                                       21

<PAGE>



         7.       Conditions to Obligations of Sellers

         The  obligations of the Sellers under this Agreement are subject to the
fulfillment, at the Closing Date, of the following conditions precedent, each of
which may be waived in writing by the Sellers:

                  7.01 Continued Truth of Representations and Warranties of GMTI
and GAC;  Compliance with Covenants and  Obligations.  The  representations  and
warranties  of GMTI  and GAC in this  Agreement  shall  be true in all  material
respects  on and as of the  Closing  Date as  though  such  representations  and
warranties were made on and as of such date, except for any changes consented to
in writing by the Sellers. GMTI and GAC shall have performed and complied in all
material respects with all terms, conditions, covenants, obligations, agreements
and restrictions  required by this Agreement to be performed or complied with by
it prior to or at the Closing Date.

                  7.02   Corporate/Stockholder   Proceedings.   All   corporate,
stockholder and other  proceedings  required to be taken on the part of GMTI and
GAC to authorize the Stock Purchase and carry out this Agreement shall have been
taken.

                  7.03  Governmental   Approvals.   All  governmental  agencies,
departments, bureaus, commissions and similar bodies, the consent, authorization
or approval of which is  necessary  under any  applicable  law,  rule,  order or
regulation for the  consummation of the Stock Purchase,  and the consummation of
the  transactions  contemplated  by this  Agreement  shall  have  consented  to,
authorized, permitted or approved such transactions.

                  7.04  Consents  of  Third  Parties.  GMTI and GAC  shall  have
received all requisite consents and approvals of all third parties whose consent
or approval is required in order for GMTI and GAC to consummate the transactions
contemplated by this Agreement.

                  7.05 Adverse Proceedings. No action or proceeding by or before
any court or other governmental body shall have been instituted or threatened by
any  governmental  body or  person  whatsoever  which  shall  seek to  restrain,
prohibit or invalidate the transactions  contemplated by this Agreement or which
might affect the right of the Sellers to transfer the Stock.

                  7.06  Opinion  of  Counsel.  Sellers  shall have  received  an
opinion of  Sullivan &  Worcester  LLP,  counsel  to  GreenMan,  dated as of the
Closing Date, in substantially the form attached hereto as Exhibit F.

                  7.07 Closing  Deliveries.  Sellers  shall have  received at or
prior to the Closing such documents,  instruments or certificates as Sellers may
reasonably request, including, without limitation:

                           (a) such  certificates  of each of  GMTI's  and GAC's
Chief Executive Officer and such other documents evidencing  satisfaction of the
conditions specified in this Section 7;

                                       22

<PAGE>




                           (b)  certificates  of the  Secretary  of State of the
State of Delaware as to the legal  existence  and good standing of GMTI and GAC;
and

                           (c)  certificates  of the Secretaries of GMTI and GAC
attesting to the incumbency of the officers of GMTI and GAC,  respectively,  the
authenticity of the resolutions  authorizing  the  transactions  contemplated by
this  Agreement,  and the  authenticity  and continuing  validity of the charter
documents delivered pursuant to Subsection 3.01.

                           (d) such other documents,  instrument or certificates
as may be reasonably requested by Seller or its counsel.

                  7.08 Security Interest.  GAC shall have executed and delivered
to BFI a Pledge  Agreement  substantially  in the form of  Exhibit G hereto  and
shall have granted BFI a security  interest in the Stock pursuant to such Pledge
Agreement.  BTM and BTG each shall have executed and delivered to BFI a Security
Agreement  substantially  in the form of  Exhibit H hereto  and each  shall have
granted BFI a security interest in all of their assets pursuant to such Security
Agreements.

                  7.09 Guaranty. GMTI shall have executed and delivered to BFI a
Guaranty substantially in the form of Exhibit I hereto.


         8.       Indemnification

                  8.01 By GreenMan. GreenMan hereby covenants and agrees that it
will  indemnify and hold harmless  Sellers,  their  Affiliates and each of their
respective  officers,  directors  and  employees  from and  against  all claims,
damages, losses, liabilities, costs and expenses (including, without limitation,
settlement costs and any legal,  accounting or other expenses for  investigating
or defending  any actions or  threatened  actions)  (collectively,  "Losses") in
connection with each and all of the following:

                           (a)   any   misrepresentation   or   breach   of  any
representation or warranty made by GMTI or GAC in this Agreement;

                           (b)  any  breach  of  any   covenant,   agreement  or
obligation  of GMTI or GAC contained in this  Agreement or any other  agreement,
instrument or document contemplated by this Agreement; and

                           (c) any misrepresentation contained in any statement,
certificate  or schedule  furnished by GMTI or GAC pursuant to this Agreement or
in connection with the transactions contemplated by this Agreement.

                           (d)   GreenMan's,   or  any  of   their   Affiliates'
operation, at the Facilities following the Closing Date.


                                       23

<PAGE>



                  8.02 By  Sellers.  Sellers  covenant  and agree that they will
indemnify  and  hold  harmless  GreenMan,  their  Affiliates,  and each of their
respective  officers,  directors and  employees,  from and against all Losses in
connection with each and all of the following:

                           (a)   any   misrepresentation   or   breach   of  any
representation or warranty made by Sellers in this Agreement;

                           (b)  any  breach  of  any   covenant,   agreement  or
obligation  of  Sellers  contained  in this  Agreement  or any other  agreement,
instrument or document contemplated by this Agreement;

                           (c) any misrepresentation contained in any statement,
certificate  or schedule  furnished by Sellers  pursuant to this Agreement or in
connection with the transactions contemplated by this Agreement;

                           (d) the  Facilities'  businesses  or operations on or
prior to the Closing Date;

                           (e) any and all liabilities of the Facilities related
to  any  borrowed  money  indebtedness  of  the  Facilities  in  excess  of  the
indebtedness described in Section 6.11 hereof existing as of the Closing Date.

                           (f)  any  tax   liabilities  or  obligations  of  the
Facilities relating to any period prior to the Closing Date;

                           (g) any claims against, or liabilities or obligations
of, the Facilities by or to officers,  directors,  or affiliates relating to the
Facilities' business or operation prior to the Closing Date;

                           (h)  any  welfare   benefits  not  fully  covered  by
third-party  insurance  policies  or  programs  relating  to claims  incurred by
present or former employees of the Facilities on or before the Closing Date.

                  8.03  Claims for  Indemnification.  Whenever  any claim  shall
arise for  indemnification  under this  Section 8,  GreenMan  on the one hand or
Sellers,  on the other  hand,  as the case may be (the party or parties  seeking
such indemnification,  the "Indemnified Party"), shall promptly notify the other
party  or  parties   hereto   (the   "Indemnifying   Party")  in  writing   (the
"Indemnification  Notice") of the claim and, when known, the facts  constituting
the basis for such claim (including all relevant documentation). In the event of
any such claim for  indemnification  hereunder  resulting  from or in connection
with any claim or legal  proceedings  by a third party (a "Third Party  Claim"),
the Indemnification Notice shall specify, if known, the amount or an estimate of
the amount of the liability arising  therefrom.  In the event that any claim for
indemnification   involves  a  matter  other  than  a  Third  Party  Claim,  the
Indemnifying   Party   shall  have   sixty   (60)  days  from   receipt  of  the
Indemnification  Notice to object to such claim by delivery of a written  notice
of such objection to the Indemnified  Party specifying in reasonable  detail the
basis for such  objection.  Failure to timely to so object  shall  constitute  a
final and

                                       24

<PAGE>



binding  acceptance of the Claim for  Indemnification  by the Indemnifying Party
and the claim  shall be paid in  accordance  with  Section  8.05  hereof.  If an
objection is timely interposed by the Indemnifying  Party and the dispute is not
resolved  within  twenty  (20)  business  days  from the date  (such  period  is
hereinafter  referred to as the  "Negotiation  Period")  the  Indemnified  Party
receives  such  objection,  such  dispute  shall be resolved by  arbitration  in
accordance with the provisions of Section 9 hereof.  The Indemnified Party shall
not settle or compromise  any claim by a third party for which it is entitled to
indemnification  hereunder without the prior written consent, which shall not be
unreasonably withheld or delayed, of the Indemnifying Party; provided,  however,
that if suit shall have been instituted  against the  Indemnified  Party and the
Indemnifying  Party  shall not have taken  control of such suit  within ten (10)
days after notification  thereof,  the Indemnified Party shall have the right to
settle or compromise such claim upon giving notice to the Indemnifying  Party as
provided in Subsection 8.04.

                  8.04     Defense by the Indemnifying Party.

                           (a) In connection  with any claim which may give rise
to  indemnity  hereunder  resulting  from or  arising  out of any claim or legal
proceeding by a person other than the Indemnified Party, the Indemnifying Party,
at his sole cost and expense may, upon written notice to the Indemnified  Party,
assume the  defense of any such claim or legal  proceeding  if the  Indemnifying
Party  acknowledges  to the  Indemnified  Party in writing the obligation of the
Indemnifying  Party to  indemnify  the  Indemnified  Party  with  respect to all
elements of such claim.  If the  Indemnifying  Party  assumes the defense of any
such claim or legal  proceeding,  the  Indemnifying  Party shall select  counsel
reasonably  acceptable to the  Indemnified  Party to conduct the defense of such
claims or legal proceedings and at the sole cost and expense of the Indemnifying
Party shall take all steps necessary in the defense or settlement  thereof.  The
Indemnifying  Party  shall not consent to a  settlement  of, or the entry of any
judgment  arising from,  any such claim or legal  proceeding,  without the prior
written  consent  of  the   Indemnified   Party  (which  consent  shall  not  be
unreasonably  withheld or delayed).  The Indemnified  Party shall be entitled to
participate  in (but not control)  the defense of any such action,  with its own
counsel and at its own expense.  If the  Indemnifying  Party does not assume the
defense of any such claim or litigation resulting therefrom within ten (10) days
after the date such claim is made: (a) the Indemnified  Party may defend against
such claim or litigation in such manner as it may deem  appropriate,  including,
but not limited to,  settling such claim or  litigation,  after giving notice of
the same to the Indemnifying  Party, on such terms as the Indemnified  Party may
deem  appropriate,   and  (b)  the  Indemnifying  Party  shall  be  entitled  to
participate  in (but not control)  the defense of such action,  with its counsel
and at its own expense.  If the Indemnifying  Party thereafter seeks to question
the manner in which the Indemnified Party defended such third party claim or the
amount or nature of any such settlement,  the Indemnifying  Party shall have the
burden to prove by a preponderance  of the evidence that the  Indemnified  Party
did not defend or settle such third party claim in a reasonably prudent manner.

                           (b) The  Indemnifying  Party  and  Indemnified  Party
shall  cooperate with each other in all reasonable  respects in connection  with
the  defense  of any Third  Party  Claim,  including  making  available  records
relating to such claim and furnishing  employees of the Indemnified Party as may
be  reasonably  necessary for the  preparation  of the defense of any such Third
Party Claim or for  testimony as witnesses  in any  proceeding  relating to such
claim.

                                       25

<PAGE>




                  8.05 Payment of  Indemnification  Obligation.  Notwithstanding
anything  to the  contrary in this  Section 8 or  elsewhere  in this  Agreement,
neither Indemnified Party shall be entitled to receive, and neither Indemnifying
Party shall be obligated to pay, (i) any amounts under this Section 8 unless and
until the aggregate amount of all claims for  indemnification  by an Indemnified
Party  under this  Section 8 exceeds  five  percent  (5%) of the amount  paid by
GreenMan  to BFI (the  "Floor")  or (ii) any  amounts in excess of the  Purchase
Price,  except that any claims by GreenMan for Losses resulting from a breach of
Section 2.12 hereof ("Tax  Claims") shall not be subject to the limits set forth
in this sentence. The parties hereto agree that (i) once the aggregate amount of
claims, exclusive of Tax Claims, by any Indemnified Party exceeds the Floor, the
Indemnified  Party shall be entitled  to  indemnity  only for the amount of such
claims in excess of the Floor and (ii) the  Indemnified  Party shall be entitled
to indemnity for the entire amount of any Tax Claims.

                  8.06 Right of Offset. GreenMan may offset any amounts owing to
BFI under  Section 1.03 hereof by the amount of any Losses  described in Section
8.02 hereof.

                  8.07 Survival of Representations;  Claims for Indemnification.
Except  as  specifically   and  expressly   otherwise   provided   herein,   all
representations,  warranties  and covenants made by Sellers and GreenMan in this
Agreement,  or in any instrument or document  furnished in connection  with this
Agreement or the transactions contemplated hereby, shall survive the Closing and
any  investigation  at any time made by or on behalf  of the  Indemnified  Party
until  three  years  from  the  Closing  (the  "Expiration   Date").   All  such
representations,  warranties and covenants shall expire on the Expiration  Date,
except for  claims,  if any,  (a)  properly  asserted  in writing  prior to such
Expiration  Date  identified  as a claim for  indemnification  pursuant  to this
Section 8, or (b) which are based upon fraud of Sellers or GreenMan, which shall
survive until finally resolved and satisfied in full.

                  8.08 Claims.  Any claim by any party to this Agreement for any
breach  of the  representations,  warranties,  and  covenants  set forth in this
Agreement shall be subject to the limitations prescribed by this Article 8.

         9.       Dispute Resolution

                  9.01  General.  In the event  that any  dispute  should  arise
between the parties hereto with respect to any matter covered by this Agreement,
the parties hereto shall resolve such dispute in accordance  with the procedures
set forth in this Section 9.

                  9.02  Consent  of the  Parties.  In the  event of any  dispute
between the parties with respect to any matter  covered by this  Agreement,  the
parties  shall  first use their  best  efforts  to resolve  such  dispute  among
themselves.  If the parties are unable to resolve the dispute within 30 calendar
days after the commencement of efforts to resolve the dispute,  the dispute will
be submitted to arbitration in accordance with Subsection 9.03 hereof.


                                       26

<PAGE>



                  9.03     Arbitration.

                           (a) Either GreenMan,  on the one hand, or Sellers, on
the other hand, may submit any matter  referred to in Subsection  9.02 hereof to
arbitration  by notifying the other party hereto,  in writing,  of such dispute.
Within  10 days  after  receipt  of such  notice,  GreenMan  and  Sellers  shall
designate in writing one  arbitrator to resolve the dispute;  provided,  that if
the parties hereto cannot agree on an arbitrator within such 10-day period,  the
arbitrator  shall be  selected  by the  American  Arbitration  Association.  The
arbitrator  so  designated  shall not be an  employee,  consultant,  contractor,
officer,  director or  stockholder  of any party hereto or any  affiliate of any
party to this Agreement.

                           (b)  Within  15 days  after  the  designation  of the
arbitrator,  the  arbitrator,  GreenMan  and Sellers  shall meet,  at which time
GreenMan  and Sellers  shall be  required  to set forth in writing all  disputed
issues and a proposed ruling on each such issue.

                           (c) The arbitrator shall set a date for a hearing(s),
which shall be no later than 30 days after the  submission of written  proposals
pursuant to paragraph  (b) above,  to discuss each of the issues  identified  by
GreenMan,  as the case may be, and Sellers. Each such party shall have the right
to be represented by counsel.  The arbitration shall be governed by the rules of
the American Arbitration  Association;  provided, that the arbitrator shall have
sole discretion with regard to the admissibility of evidence.

                           (d) The arbitrator  shall use his or her best efforts
to rule on each  disputed  issue  within  30 days  after the  completion  of the
hearings  described in paragraph (c) above. The  determination of the arbitrator
as to the  resolution  of any dispute shall be binding and  conclusive  upon all
parties hereto.  All rulings of the arbitrator  shall be in writing and shall be
delivered to the parties hereto and the Escrow Agents.

                           (e) The prevailing party in any arbitration  shall be
entitled to an award of reasonable  attorneys'  fees incurred in connection with
the arbitration. The non-prevailing party shall pay such fees, together with the
fees of the arbitrator and the costs and expenses of the arbitration.

                           (f) Any arbitration  pursuant to this Subsection 9.03
shall be  conducted  in  Boston,  Massachusetts.  Any  arbitration  award may be
entered in and  enforced  by any court  having  jurisdiction  thereover  and the
parties hereby consent and commit  themselves to the  jurisdiction of the courts
of the  Commonwealth  of  Massachusetts  for purposes of the  enforcement of any
arbitration award.

         10.      Termination of Agreement

                  10.01  Termination  by  Lapse of Time.  This  Agreement  shall
terminate at 5:00 p.m.,  Boston  Time,  on July 18,  1997,  if the  transactions
contemplated  hereby have not been consummated,  unless such date is extended by
the written consent of BFI and GreenMan.


                                       27

<PAGE>



                  10.02 Termination by Agreement of the Parties.  This Agreement
may be terminated by the mutual written  agreement of the parties hereto. In the
event  of  such  termination  by  agreement,  GreenMan  shall  have  no  further
obligation or liability to Sellers under this Agreement,  and Sellers shall have
no further obligation or liability to GreenMan under this Agreement.

                  10.03  Termination by Reason of Breach.  This Agreement may be
terminated  by BFI,  if at any time prior to the  Closing  there  shall  occur a
material  breach  of any of the  representations,  warranties  or  covenants  of
GreenMan  or the failure by GreenMan  to perform in all  material  respects  any
condition or obligation hereunder,  and may be terminated by GreenMan, if at any
time prior to the  Closing  there  shall  occur a material  breach of any of the
representations,  warranties  or  covenants of the Sellers or the failure of the
Sellers  to  perform  in all  material  respects  any  condition  or  obligation
hereunder.  If the  Agreement  is  terminated  due to a  material  breach by the
Sellers, then all sums paid to date by GreenMan to the Sellers shall be returned
to  GreenMan  by BFI within ten (10) days of the  breach.  If the  Agreement  is
terminated due to a material  breach by GreenMan,  then all sums paid to date by
GreenMan  to BFI shall be retained  by BFI as  liquidated  damages and said sums
shall be the Seller's sole and exclusive remedy against GreenMan hereunder.

         11.      Post Closing.

                  11.01 BFI Name and Logos.  As soon as practicable  (but in any
event within ninety (90) days) after the Closing Date, GreenMan, at its expense,
shall (i) remove all BFI names and logos from all assets of the  Facilities  and
(ii) take all steps  necessary to remove the "BFI" from the  corporate  names of
BTM  and  BTG.   Nothing  in  this  Agreement  shall  constitute  a  license  or
authorization  for GreenMan to use in any manner any name, logo or mark owned by
or licensed to BFI and its affiliates.

                  11.02  Access to Records  and  Properties;  Assistance.  For a
period of seven (7) years  following  the Closing,  GreenMan  will afford to BFI
reasonable access to the financial and tax records of the BTM and BTG as well as
the properties related to the Facilities' business to (i) complete any financial
statements  or audits  thereof or tax  returns,  (ii) defend any tax disputes or
claims or responds  to any  requests in  connection  with any tax audits,  (iii)
comply  with any legal  request  or order,  (iv)  defend any  disputes,  claims,
prosecution or litigation or (v) for any other reasonable purpose.  For a period
of thirty (30) days  following the Closing Date,  GreenMan  shall make available
those Hired Employees  (defined below) accounting and other office personnel for
purposes of assisting BFI in bringing the Facilities' monthly accounting records
to a close.

                  11.03 Waiver of Applicable  Waiting  Periods.  GreenMan  shall
waive the waiting periods for the benefit plans of GreenMan,  including  without
limitation medical, dental, disability, vacation and pension plans, with respect
to any employees  (such  employees  "Hired  Employees') of any of the Facilities
employed by GreenMan at or following the Closing Date; provided that such waiver
is permitted under such plans. Any such employees shall be eligible for coverage
in accordance with, and subject to, the other provisions of such plans. GreenMan
shall further  apply such  respective  employees'  years of service with any BFI
affiliate for

                                       28

<PAGE>



purposes of calculating benefits under all of GreenMan's benefit plans; provided
that such application is permitted under such plans.

                  11.04  Severance.  If any  Hired  Employee  shall  cease to be
employed  by  GreenMan  or  any  of  their  respective  affiliates,  other  than
terminated  for "cause",  within the first 90 days after the Closing Date,  then
Sellers  shall be  responsible  for any and all  severance  payments  and  other
termination benefits to which such Hired Employee would have been entitled under
BFI's employee benefit and severance plans in effect prior to the Closing Date.

                  11.05  Termination  of Benefit  Plan  Coverage.  Sellers  will
terminate the Facilities' participation in all employee benefit plans of Sellers
or their affiliates on the Closing Dates.

                  11.06  Financial  Assurance.  On or  before  sixty  (60)  days
following the Closing Date,  GreenMan shall submit such instruments of financial
assurance required by the respective  regulatory agencies to effect the full and
effective  release of those  instruments  of  financial  assurance on file or in
place by BFI, BFIM, BFIG, or any of their respective  Affiliates  (excluding BTM
and BTG) relating to the Facilities.

                  11.07 Tax and Allocation  Matters.  BFI and GMTI agree to make
(and cause  their  respective  affiliates  to make) all  necessary  filings  and
elections under Section  338(h)(10) of the Internal Revenue Code with respect to
the sale of the Stock.  BFI will file the  completed  IRS form 8023 on behalf of
the  parties  and BFI will  provide  a copy to GMTI.  BFI and GMTI (i)  agree to
allocate the Purchase  Price among the assets of BTM and BTG in accordance  with
Schedule 11.07, (ii) will have provided their respective taxpayer identification
numbers on Schedule 11.07, (iii) will file IRS Forms 8594 and any other required
modifications  thereto or other tax reporting forms consistently with the agreed
allocation,  (iv)  will not  file  any  return  with a tax  authority  or take a
position in any proceeding before any taxing authority that is inconsistent with
such  allocation,  and (v) upon notice of the  allocation  being disputed by any
taxing  authority,  will promptly notify the other party of such dispute and the
resolution thereof.  BFI, at its expense,  will prepare and file all federal and
state tax returns for BTM and BTG for the current period up to the Closing Date.
GMTI,  at its  expense,  will prepare and file all federal and state tax returns
for BTM and BTG for periods after the Closing Date.

                  11.08 Ford Heights Cages.  For so long as the Option Agreement
relating to the Ford Heights facility is in effect, Sellers and their affiliates
shall  continue to permit the use,  without  charge,  by BTM and BTG of the tire
cages located thereat in the manner currently used.

         12.      Brokers

                  12.01 For BFI. BFI  represents  and  warrants  that no person,
firm or corporation  has acted in the capacity of broker or finder on its behalf
to bring about the  negotiation of this  Agreement.  BFI agrees to indemnify and
hold harmless GreenMan against any claims or liabilities  asserted against it by
any person acting or claiming to act as a broker for BFI.


                                       29

<PAGE>



                  12.02 For GreenMan.  GreenMan  represents and warrants that no
person, firm or corporation has acted in the capacity of broker or finder on its
behalf to bring about the  negotiation  of this  Agreement.  GreenMan  agrees to
indemnify  and hold  harmless  BFI  against any claims or  liabilities  asserted
against  any of them by any  person  acting  or  claiming  to act as a broker or
finder on behalf of GreenMan.

         13.      Notices

         Any notices or other  communications  required or  permitted  hereunder
shall be sufficiently  given if delivered  personally or sent by telex,  federal
express,  registered or certified mail, postage prepaid, addressed as follows or
to such other address of which the parties may have given notice:

               To GreenMan or GAC:

                                GreenMan Technologies, Inc.
                                7 Kimball Lane, Building A
                                Lynnfield, Massachusetts  01940
                                Attn:  Maurice E. Needham
                                Telephone:  (617) 224-2411
                                Telecopy:   (617) 224-0014

               With a copy to:

                                Sullivan & Worcester LLP
                                One Post Office Square
                                Boston, Massachusetts  02109
                                Attn:  John A. Piccione, Esq.
                                Telephone:  (617) 338-2800
                                Telecopy:   (617) 338-2880

               To BFI:

                                Browning Ferris Industries, Inc.
                                P.O. Box 3151
                                Houston, Texas  77253
                                Attn:  Secretary
                                Telephone:
                                Telecopy:


                                       30

<PAGE>



      With a copy to:
                                Browning Ferris Industries, Inc.
                                P.O. Box 3151
                                Houston, Texas 77753
                                Attn:  John A. Hale, Jr., Esq.
                                Telephone:  (281) 870-7138
                                Telecopy:    (281) 870-7825

Unless otherwise specified herein, such notices or other communications shall be
deemed received (a) on the date delivered, if delivered personally, or (b) three
business days after being sent, if sent by registered or certified mail, postage
prepaid and properly addressed as set forth above.

      14.      Successors and Assigns

      This  Agreement  shall be  binding  upon and inure to the  benefit  of the
parties  hereto  and  their  respective  successors  and  assigns,  except  that
GreenMan,  on the one hand, and Sellers, on the other hand, may not assign their
respective  obligations hereunder without the prior written consent of the other
party;  provided,  however,  that  GreenMan may assign this  Agreement,  and its
rights and obligations hereunder,  to a subsidiary or affiliate of GreenMan. Any
assignment in contravention of this provision shall be void.

      15.      Entire Agreement; Amendments; Attachments

                           (a)  This  Agreement,   all  Schedules  and  Exhibits
hereto,  and all  agreements  and  instruments  to be  delivered  by the parties
pursuant hereto  represent the entire  understanding  and agreement  between the
parties hereto with respect to the subject matter hereof and supersede all prior
oral and written and all  contemporaneous  oral  negotiations,  commitments  and
understandings  between  such  parties.  GMTI and BFI,  by the  consent of their
respective presidents, may amend or modify this Agreement, in such manner as may
be agreed upon, by a written instrument executed by GMTI and BFI.

                           (b) If the  provisions  of any Schedule or Exhibit to
this  Agreement are  inconsistent  with the  provisions of this  Agreement,  the
provisions of the Agreement shall prevail.  The Exhibits and Schedules  attached
hereto or to be attached hereafter are hereby  incorporated as integral parts of
this Agreement.

      16.      Severability

      Any provision of this Agreement which is invalid, illegal or unenforceable
in any jurisdiction shall, as to that jurisdiction, be ineffective to the extent
of such invalidity, illegality or unenforceability, without affecting in any way
the remaining  provisions  hereof in such  jurisdiction or rendering that or any
other provision of this Agreement invalid, illegal or unenforceable in any other
jurisdiction.


                                       31

<PAGE>



      17.      Investigation of the Parties

      All representations and warranties  contained herein which are made to the
best  knowledge  of a party  shall  require  that  such  party  make  reasonable
investigation  and inquiry with respect thereto to ascertain the correctness and
validity thereof.

      18.      Expenses

      Except as otherwise expressly provided herein,  GreenMan, on the one hand,
the  Sellers,  on the other  hand,  will pay all fees and  expenses  (including,
without limitation,  legal and accounting fees and expenses) incurred by them in
connection with the transactions contemplated hereby (collectively, "Transaction
Expenses").  In no event will any of the fees or expenses incurred in connection
with  this  transaction  by BFI,  including,  without  limitation,  the fees and
expenses of counsel to BFI, be billed to or paid by the Facilities.

      19.      Governing Law

      This Agreement  shall be governed by and construed in accordance  with the
laws of the State of Delaware.

      20.      Section Headings

      The section  headings are for the convenience of the parties and in no way
alter,  modify,  amend,  limit, or restrict the  contractual  obligations of the
parties.

      21.      Counterparts

      This Agreement may be executed in one or more counterparts,  each of which
shall be deemed to be an  original,  but all of which  shall be one and the same
document.


                                       32

<PAGE>



      IN WITNESS  WHEREOF,  this Agreement has been duly executed by the parties
hereto as an instrument under seal on and as of the date first above written.

(Corporate Seal)                                GREENMAN TECHNOLOGIES, INC.

ATTEST:

Joseph E.  Levangie                             By: /s/ Maurice E. Needham
Secretary                                            Maurice E. Needham,
                                                     Chief Executive officer

(Corporate Seal)                                GREENMAN ACQUISITION CORP.

ATTEST:

John A.  Piccione                               By: /s/ Maurice E. Needham
Secretary                                           Maurice E. Needham,
                                                    Chief Executive Officer

(Corporate Seal)                                BROWNING FERRIS INDUSTRIES, INC.

ATTEST:

/s/ Eileen B. Schuler                           By: /s/ Gerald K.  Burger
Assistant Secretary                                 Vice  President

(Corporate Seal)                                BROWNING-FERRIS INDUSTRIES OF
                                                    MINNESOTA, INC.

ATTEST:

/s/ Eileen B. Schuler                           By: /s/ Gerald K.  Burger
Assistant Secretary                                  Vice President


(Corporate Seal)                                BROWNING-FERRIS INDUSTRIES OF
                                                    GEORGIA, INC.

ATTEST:

/s/ Eileen B. Schuler                           By: /s/ Gerald K.  Burger
Assistant Secretary                                 Vice President




                                       33

                           GREENMAN ACQUISITION CORP.

                                 Promissory Note

$4,758,830                                              Lynnfield, Massachusetts
                                                                   June 30, 1997


         FOR VALUE  RECEIVED,  the  undersigned  GREENMAN  ACQUISITION  CORP., a
Delaware  corporation  ("Maker"),  hereby  promises  to pay  to  BROWNING-FERRIS
INDUSTRIES OF MINNESOTA,  INC. a Minnesota corporation  ("BFIM"),  and BROWNING-
FERRIS  INDUSTRIES OF GEORGIA,  INC., a Georgia  corporation  ("BGM" and jointly
with BFIM,  the  "Payees"),  the principal  amount of Four Million Seven Hundred
Fifty-Eight  Thousand Eight Hundred Thirty Dollars ($4,758,830) on September 30,
1997 (the "Maturity Date"), or so much thereof as may remain unpaid hereunder on
the  Maturity  Date,  together  with  interest  on the  unpaid  balance  of such
principal  amount  from the date  hereof at a  variable  rate which at all times
shall equal the prime rate, as published in the Wall Street Journal from time to
time, plus two percentage points.

         Payments of principal and interest hereon shall be made in lawful money
of the  United  States  of  America  to the  holder  hereof at  Browning  Ferris
Industries,  Inc.,757 N. Eldridge Street, Houston, Texas 77079, or at such other
place as such holder may direct in writing to Maker.

         This Note may be prepaid at Maker's  election  in whole or in part,  at
any time and from time to time,  without  premium or penalty,  but together with
payment of all interest accrued and unpaid to the date of such prepayment on the
principal amount so prepaid.

         This Note is made  pursuant to and subject to the terms of the Purchase
and Sale Agreement  dated as of the date hereof  between,  inter alia, the Maker
and the Payees (the "Purchase Agreement"). In addition, this Note is entitled to
the benefits of,  including the security  described  in, (i) a pledge  agreement
dated as of the date hereof (the "Pledge  Agreement")  between the Maker and the
Payees,  and (ii)  security  agreements,  each dated as of the date  hereof (the
"Security Agreements"),  between BFIM and BFI Tire Recyclers of Minnesota, Inc.,
and BGIM and of Georgia, Inc., respectively. Neither the foregoing references to
the Purchase Agreement, the Pledge Agreement and the Security Agreements nor any
provision  thereof shall affect or impair the  obligation of the  undersigned to
pay the principal of and interest on this Note as herein provided.

         This Note and all  accrued  and  unpaid  interest  hereon  shall at the
holder's election become immediately due and payable,  without notice or demand,
upon  the  occurrence  of any of the  following  with  respect  to  Maker or any
endorser or guarantor  hereof:  the admission in writing of its inability to pay
its  debts  as  they  become  due,  or the  appointment  of a  receiver  for any
substantial  part of the property of the Maker, an assignment for the benefit of
creditors by the

                                                   

<PAGE>


Maker, or the  commencement of any  proceedings  under  bankruptcy or insolvency
laws by or against the Maker.

         The parties hereto, including the Maker and all endorsers of this Note,
hereby waive  presentment,  demand,  notice,  protest and all other  demands and
notices in connection with the delivery, acceptance,  performance or enforcement
of this  Note.  No  delay  or  omission  on the  part of the  holder  hereof  in
exercising any right hereunder shall operate as a waiver of such right or of any
other right hereunder,  and a waiver of any such right on any one occasion shall
not be construed as a bar to or waiver of any such right on any future occasion.

         If this Note is not paid when due,  whether on the Maturity  Date or by
acceleration,  or if action is taken to collect amounts due on this Note through
a bankruptcy,  probate or other court,  whether before or after maturity,  Maker
agrees to pay all costs of collection,  including without limitation  reasonable
attorney's fees.

         This Note is made and delivered as a sealed  instrument under and shall
be governed by the laws (other than the law  governing  conflict of law matters)
of The Commonwealth of Massachusetts.


                                                 GREENMAN ACQUISITION CORP.



                                                 By: /s/ Maurice E. Needham
                                                     Title:  President





                                       -2-

         This  NONCOMPETITION,  NONSOLICITATION  AND  CONFIDENTIALITY  AGREEMENT
(this  "Agreement"),   dated  as  of  June  30,  1997,  by  and  among  GreenMan
Technologies,  Inc., a Delaware corporation ("GTI"), GreenMan Acquisition Corp.,
a Delaware  corporation  ("GAC"  and,  together  with GTI,  the  "Buyers"),  and
Browning   Ferris   Industries,    Inc.,   a   Delaware   corporation   ("BFI"),
Browning-Ferris  Industries of Minnesota, Inc., a Minnesota corporation ("BFIM")
and Browning-Ferris  Industries of Georgia, Inc., a Georgia corporation ("BFIG")
(BFIG together with BFI and BFIM, the "Sellers").

                                    RECITALS

         A. Buyers and Sellers  are  parties to a Purchase  and Sale  Agreement,
dated as of June 30, 1997 (the "Purchase Agreement"), pursuant to which GAC will
acquire all the issued and  outstanding  capital stock of BFI Tire  Recyclers of
Minnesota,  Inc., a Minnesota  corporation  ("BTM"),  and BFI Tire  Recyclers of
Georgia, Inc., a Georgia corporation ("BTG").

         B. Buyers are unwilling to enter into and consummate  the  transactions
contemplated  by the  Purchase  Agreement  without  assurances  of a  nature  as
provided herein.

         NOW,  THEREFORE,  in  consideration  of the  premises  and  the  mutual
covenants and  agreements  herein  contained,  and in  consideration  of Buyers'
proceeding  with  the  consummation  of  the  transactions  contemplated  by the
Purchase Agreement, the parties hereto do hereby covenant and agree as follows:

         1.       Noncompetition Agreement.

         Each Seller agrees and warrants  that,  for a period of three (3) years
from the date hereof,  it will not,  within the states and  provinces  listed on
Exhibit A attached hereto,  directly or indirectly own, sponsor,  operate, join,
control or  participate  in, or be  connected as a partner,  officer,  director,
employee,  consultant,  adviser, sponsor or otherwise with, or permit its or his
name to be used in  connection  with,  any business  engaged in the  collecting,
processing, treating, recovering, transporting, shredding, marketing, brokering,
reselling,  disposal or recycling of tires or the sale and marketing of products
obtained from such processing  (except such collecting and transporting of tires
as may be incidental to the collecting and  transporting of  nonhazardous  solid
waste  generally);  provided,  however,  that nothing  herein shall  prevent the
Sellers and their  affiliates  from engaging in such  businesses in the State of
Illinois as are required to fulfill their  contractual  obligations  under those
contracts and other agreements listed on Exhibit B attached hereto.

         2.       Nonsolicitation Agreement.

         Each Seller agrees and covenants  that it will not,  unless acting with
the Buyers' express  written  consent,  directly or indirectly,  for a period of
three (3) years from the date  hereof,  actively  solicit or  endeavor to entice
away any  dealer,  distributor,  sales  representative,  officer or  employee of
either Buyer,  including without limitation those former employees of BTM or BTG
hired by the Buyer following the Closing under the Purchase Agreement.

                                                      

<PAGE>



         If at any time any of the foregoing  agreements  or covenants  shall be
deemed invalid or unenforceable by the laws of the jurisdiction wherein it is to
be  enforced,  by reason  of being  vague or  unreasonable  as to  duration,  or
geographic  scope, or scope of activities  restricted,  or for any other reason,
such  agreements or covenants  shall be considered  divisible as to such portion
and shall  become and be  immediately  amended and reformed to include only such
agreements  or  covenants as are  enforceable  by the court or other body having
jurisdiction  of this  Agreement;  and the parties agree that such agreements or
covenants, as so amended and reformed,  shall be valid and binding as though the
invalid or unenforceable portion had not been included herein.

         3.       Confidentiality Agreement.

         Each Seller agrees and warrants  that,  for a period of three (3) years
from the date hereof,  it will not, unless acting with the Buyers' express prior
written consent,  directly or indirectly,  at any time divulge, furnish, or make
accessible to anyone,  or appropriate to its own use, or to the use of any third
party,  any knowledge or  information  with respect to secret,  confidential  or
proprietary methods,  processes,  formulae, designs, equipment, plans, projects,
material, information, business, operations, techniques or customer lists of BTM
or BTG;  provided,  however,  that the foregoing  restriction shall not apply to
information  that (i) is in the  public  domain or  becomes  part of the  public
domain  through no fault of any  Seller,  (ii) is used by Sellers in  businesses
other than businesses in which BTM and BTG are engaged,  or (iii) such Seller is
required to disclose by order of a court of competent  jurisdiction in any legal
proceeding,  provided  that such Seller shall notify Buyer before so  disclosing
such information.

         4.       Remedies.

         Each Seller  acknowledges that Buyers do not have an adequate remedy at
law in the event that any Seller breaches any of the foregoing provision of this
Agreement and agrees that Buyers,  in addition to any other available rights and
remedies, whether existing under this Agreement or at law or in equity, shall be
entitled to injunctive  relief and specific  performance to the extent permitted
by law.

         5.       Waivers and Further Agreements.

         Any  waiver of any terms and  conditions  of this  Agreement  shall not
operate as a waiver of any other breach of such terms or conditions or any other
term or condition, nor shall any failure to enforce any provision hereof operate
as a waiver  of such  provision  or of any  other  provision  hereof;  provided,
however, that no such waiver,  unless it, by its own terms,  explicitly provides
to the  contrary,  shall be  construed  to  effect a  continuing  waiver  of the
provision  being waived,  and no such waiver in any instance shall  constitute a
waiver in any other  instance  or for any other  purpose or impair the rights of
the party against whom such waiver is claimed in all other  instances or for all
other  purposes to require  full  compliance  with such  provision.  Each of the
parties hereto agrees to execute all such further  instruments and documents and
to take

                                       -2-

<PAGE>



all such further action as the other parties may reasonably  require in order to
effectuate the terms and purpose of this Agreement.

         6.       Amendments; Entire Agreement.

         This  Agreement  may not be  amended,  nor  shall any  waiver,  change,
modification,  consent or  discharge  be effected,  except by an  instrument  in
writing  executed  by  or on  behalf  of  the  party  or  parties  against  whom
enforcement of any amendment, waiver, change, modification, consent or discharge
is sought. The parties hereto agree that this Agreement and all other agreements
of even date or approximate  even date herewith  constitute the entire agreement
among the parties with respect to the subject  matter hereof and  supersedes all
prior agreements and  understandings  among them as to such subject matter;  and
there are no restrictions,  agreements,  arrangements,  oral or written, between
the parties  relating to the subject matter hereof that are not fully  expressed
or referred to herein.

         7.       Severability.

         If any  provision of this  Agreement  shall be determined by a court of
competent  jurisdiction  to be  inoperative or  unenforceable  as applied to any
particular case in any jurisdiction or jurisdictions, or in all jurisdictions or
in all cases,  because of the conflict of any provision with any constitution or
state or rule of public policy or for any other reason,  such circumstance shall
not have the effect of  rendering  the  provision  or  provisions  in  question,
invalid,  inoperative or  unenforceable to the extent that such other provisions
are not themselves actually in conflict with such constitution,  statute or rule
of public policy, but this Agreement shall be reformed and construed in any such
jurisdiction or case as if such invalid,  inoperative or unenforceable provision
had never been contained herein and such provision  reformed so that it would be
valid,  operative  and  unenforceable  to the maximum  extent  permitted in such
jurisdiction or in such case.

         8.       Notices.

         Any notices or other  communications  required or  permitted  hereunder
shall be sufficiently  given if delivered  personally or sent by telex,  federal
express,  registered or certified mail, postage prepaid, addressed as follows or
to such other address of which the parties may have given notice:

               To either Buyer, at:

                                GreenMan Technologies, Inc.
                                7 Kimball Lane, Building A
                                Lynnfield, Massachusetts  01940
                                Attention:  Maurice E. Needham
                                Telephone:  (617) 224-2411
                                Telecopy:   (617) 224-0014


                                       -3-

<PAGE>



               With a copy to:

                                Sullivan & Worcester LLP
                                One Post Office Square
                                Boston, Massachusetts  02109
                                Attention:  John A. Piccione, Esq.
                                Telephone:  (617) 338-2800
                                Telecopy:   (617) 338-2880

               To any Seller, at:

                                Browning Ferris Industries, Inc.
                                757 North Eldridge
                                Houston, Texas  77079
                                Attention:  Secretary
                                Telephone:  (281) 870-8100
                                Telecopy:  (281) 870-7825

      With a copy to:
                                Browning Ferris Industries, Inc.
                                757 North Eldridge
                                Houston, Texas 77079
                                Attention:  John A. Hale, Jr., Esq.
                                Telephone:  (281) 870-7138
                                Telecopy:    (281) 870-7825

Unless otherwise specified herein, such notices or other communications shall be
deemed  received (i) on the date  delivered,  if delivered  personally,  or (ii)
three  business days after being sent, if sent by registered or certified  mail,
postage prepaid and properly addressed as set forth above.

         9.       Successors and Assigns.

         This  Agreement  shall not be assignable by any Seller.  This Agreement
shall be binding  upon and inure to the benefit of the parties  hereto and their
respective  successors  and  assigns,  and  is not  intended  and  shall  not be
construed to create in any rights in or to be enforceable by any third person.

         10.      Counterparts.

         This  Agreement  may be executed in two or more  counterparts  (none of
which need be  executed  by all the  parties),  each of which shall be deemed an
original,  but  all  of  which  together  shall  constitute  one  and  the  same
instrument,  and in pleading or proving any provision of this Agreement it shall
not be necessary to produce more than one such counterpart.


                                       -4-

<PAGE>



         11.      Headings.

         The headings  contained in this  Agreement are for  reference  purposes
only and shall not in any way  affect  the  meaning  or  interpretation  of this
Agreement.

         12.      Governing Law.

         This  Agreement  shall be governed  by and  construed  and  enforced in
accordance with the law (other than the law governing conflict of law questions)
of the State of Delaware.

         13.      Massachusetts Courts.

         Any action to  enforce,  arising out of, or relating in any way to, any
of the provision of this  Agreement may be brought and  proscribed in such court
or courts located in The  Commonwealth of  Massachusetts  as is provided by law;
and the parties  consent to the  jurisdiction of said court or courts located in
The  Commonwealth  of  Massachusetts,  and to service or process by first-class,
registered or certified mail, or by any other manner provided by law.


                                       -5-

<PAGE>



         IN WITNESS WHEREOF,  the parties have executed or caused to be executed
this Agreement as a sealed instrument as of the date first above written.

                                           GREENMAN TECHNOLOGIES, INC.



                                           By: /s/  Maurice E. Needham
                                               Title:  Chief Executive Officer
                                           GREENMAN ACQUISITION CORP.



                                           By: /s/ Maurice E. Needham
                                               Title:  President
                                           BROWNING FERRIS INDUSTRIES, INC.



                                           By: /s/ Gerald K.  Burger
                                               Title:  Vice President
                                           BROWNING-FERRIS INDUSTRIES
                                             OF MINNESOTA, INC.



                                           By: /s/ Gerald K.  Burger
                                               Title:  Vice President
                                           BROWNING-FERRIS INDUSTRIES
                                             OF GEORGIA, INC.



                                           By: /s/ Gerald K.  Burger
                                               Title:  Vice President



                                       -6-

<PAGE>



                                    Exhibit A

Alabama
Arkansas                                                   Tennessee
Florida                                                    Texas
Georgia                                                    Virginia
Illinois                                                   Wisconsin
Indiana                                                    Manitoba
Iowa                                                       Saskatchewan
Kentucky
Louisiana
Maryland
Michigan
Minnesota
Mississippi
Missouri
Montana
Nebraska
North Carolina
North Dakota
Ohio
South Carolina
South Dakota

                                       -7-

<PAGE>


                                    Exhibit B

Fuel Stockpile  Management  Agreement  dated as of April 15, 1995 by and between
CGE Ford Heights,  L.L.C.  ("CGE") and  Browning-Ferris  Industries of Illinois,
Inc. ("BFII").

First  Amended and Restated  Tire Supply  Agreement  dated March 22, 1994 by and
between CGE and BFII

Tire Recycling Waste Disposal Agreement Dated September 13, 1995, by and between
CGE Fulton, LLC and BFII

Fuel Stockpile Management Agreement Dated September 13, 1995, by and between CGE
Fulton, LLC and BFII











                                       -8-

                               SECURITY AGREEMENT


         This SECURITY AGREEMENT (this "Agreement"),  dated as of June 30, 1997,
by and between BFI Tire Recyclers of Georgia, Inc., a Georgia corporation with a
principal place of business at 138B Sherrel Avenue, Jackson,  Georgia 30233 (the
"Company"),  and  Browning-  Ferris  Industries  of  Georgia,  Inc.,  a  Georgia
corporation (the "Secured Party").

                                    RECITALS

         A. Pursuant to a Purchase and Sale Agreement  dated as of June 30, 1997
(the "Purchase Agreement") by and among GreenMan Technologies,  Inc., a Delaware
corporation ("GTI"), GreenMan Acquisition Corp., a Delaware corporation ("GAC"),
Browning Ferris Industries,  Inc., a Delaware corporation, the Secured Party and
Browning-Ferris  Industries of Minnesota, Inc., GAC has purchased all the issued
and outstanding capital stock of the Company.

         B. Pursuant to the Purchase Agreement, GAC has delivered to the Secured
Party the Note (as  defined in the  Purchase  Agreement)  and is to deliver  the
Final Working Capital Note (as defined in the Purchase  Agreement and,  together
with the Note, the "Notes").

         C. The Secured Party has required as a condition to the consummation of
the transactions  contemplated by the Purchase Agreement, and in order to secure
the  prompt  and  complete  payment,  observance  and  performance  all of GAC's
obligations  and  liabilities   under  the  Notes  (all  such   obligations  and
liabilities  being hereinafter  referred to collectively as the  "Obligations"),
that  the  Company  execute  and  deliver  this  Agreement  and  enter  into the
transactions contemplated hereby.

         NOW, THEREFORE,  in consideration of the premises, of the Secured Party
proceeding  with  the  consummation  of  the  transactions  contemplated  by the
Purchase  Agreement,  and of  other  valuable  consideration,  the  receipt  and
adequacy whereof are hereby  acknowledged,  the parties hereto,  intending to be
legally bound, do covenant and agree as follows:

         1.   Definitions.   All  capitalized   terms  used  herein  or  in  any
certificate,  report or other document  delivered pursuant hereto shall have the
meanings  assigned to them below or in the Purchase  Agreement (unless otherwise
defined).  Except as otherwise defined,  terms defined in the Uniform Commercial
Code shall have the meanings set forth therein.

         "Accounts" means all rights of the Company to payment for goods sold or
leased or for  services  rendered,  all sums of money or other  proceeds  due or
becoming  due  thereon,  all notes,  bills,  drafts,  acceptances,  instruments,
documents and other debts, obligations and liabilities,  in whatever form, owing
to the Company with respect thereto,  all guaranties and security therefor,  and
the Company's  rights  pertaining  to and interest in such goods,  including the
right of stoppage in transit,  replevin or reclamation;  all chattel paper;  all
amounts due from Affiliates

                                                     

<PAGE>



of the  Company;  all  insurance  proceeds;  all other  rights and claims to the
payment  of  money,  under  contracts  or  otherwise;  and  all  other  property
constituting "accounts" as such term is defined in the Uniform Commercial Code.

         "Collateral"  means all real and  personal  property  of the Company of
every  kind and  description,  tangible  and  intangible,  whether  now owned or
existing or hereafter  arising or acquired,  including  without  limitation  all
Accounts,  Equipment,  General Intangibles,  Inventory and Securities,  together
with all goods,  instruments,  documents of title,  policies and certificates of
insurance,  securities,  chattel paper, deposit accounts, cash or other property
owned by the Company or in which the Company has an interest that are now or may
hereafter be in the  possession,  custody or control of the Secured Party or its
participants or assigns for any purpose;  any and all additions,  substitutions,
replacements and accessions  thereto;  all books and records (including computer
programs,  printouts and other computer  materials and records) and all Proceeds
and products of any of the foregoing.

         "Default"   means  any  default  in  the  payment  or   performance  of
obligations under either of the Notes or this Agreement.

         "Encumbrance" means any mortgage,  pledge,  security interest,  lien or
other  charge  or  encumbrance  of  any  kind  or  nature  (including,   without
limitation, the lien or retained security title of a conditional vendor) upon or
with respect to any property.

         "Equipment"  means all  machinery,  equipment and fixtures,  furniture,
furnishings,  trade  fixtures,  specialty  tools and parts,  motor  vehicles and
materials  handling  equipment  of the  Company,  together  with  the  Company's
interest in, and right to, any and all manuals,  computer  programs,  data bases
and other  materials  relating to the use,  operation or structure of any of the
foregoing;  and all  other  property  constituting  "equipment"  as such term is
defined in the Uniform Commercial Code.

         "General  Intangibles"  means all rights  with  respect to  trademarks,
service marks, trade names, trade styles, patents, copyrights, mask works, trade
secrets information,  other proprietary rights and rights to prevent others from
doing   acts  that   constitute   unfair   competition   with  the   Company  or
misappropriation of its property,  including without limitation any sums (net of
expenses) that the Company may receive arising out of any claim for infringement
of its  rights in any of the  foregoing,  and all  rights of the  Company  under
contracts  to enjoy  performance  by others or to be  entitled  to enjoy  rights
granted by others,  including without  limitation any licenses;  all obligations
and  indebtedness  of any kind (other than  Accounts)  owing to the Company from
whatever source  arising;  all contract  rights;  all rights of the Company as a
bailor; all tax refunds;  all right, title and interest of the Company in and to
all documents,  books, records,  files and other information (on whatever medium
recorded,  and including without  limitation  computer programs,  tapes,  discs,
punch  cards,  data  processing   software  and  related  property  and  rights)
maintained  by the Company that reflect the conduct of the  Company's  business,
such as financial records, marketing and sales records, research and development
records, and design, engineering and manufacturing records; all rights under

                                       -2-

<PAGE>



service bureau service  contracts;  all computer data and the concepts and ideas
on which  said data is based;  all  developmental  ideas and  concepts,  papers,
plans, schematics, drawings, blueprints, sketches and documents; all data bases;
all customer lists; and all other property constituting "general intangibles" as
such term is defined in the Uniform Commercial Code.

         "Inventory"  means all goods,  merchandise and other personal  property
(including warehouse receipts and other negotiable and non-negotiable  documents
of title  covering  any such  property)  of the Company  that are held for sale,
lease or other  disposition,  or are to be furnished under contracts of service,
or for  display  or  demonstration,  or  leased  or  consigned,  or that are raw
materials,  piece goods,  work-in-process,  finished  goods or supplies or other
materials used or consumed or to be used or consumed in the Company's  business,
whether in transit or in the  possession  of the Company or  another,  including
without  limitation  all goods  covered by purchase  orders and  contracts  with
suppliers  and all goods billed and held by suppliers  and goods  located on the
premises of any carriers,  forwarding agents, truckers,  warehousemen,  vendors,
selling agents or other third parties; all proprietary rights,  patents,  plans,
drawings, diagrams,  schematics,  assembly and display materials relating to any
of the foregoing;  and all other property constituting  "inventory" as such term
is defined in the Uniform Commercial Code.

         "Permitted Encumbrances" means the following:

                    (i)    Encumbrances  in favor of the Secured Party to secure
                           Obligations;

                   (ii)    Encumbrances   existing   as  of  the  date  of  this
                           Agreement  and  disclosed  in  Section  2.09  of  the
                           Purchase Agreement and Schedule 2.09 thereto;

                  (iii)    Encumbrances  securing  indebtedness for the purchase
                           price of capital assets,  provided that (i) each such
                           Encumbrance  is given  solely to secure the  purchase
                           price of such property,  does not extend to any other
                           property and is given at the time of  acquisition  of
                           the  property,  and  (ii)  the  indebtedness  secured
                           thereby  does not  exceed  the  lesser of the cost of
                           such property or its fair market value at the time of
                           acquisition;

                   (iv)    liens  for  taxes,   fees,   assessments   and  other
                           governmental  charges to the extent  that  payment of
                           the same may be postponed or is not required;

                    (v)    landlords'  and lessors' liens in respect of rent not
                           in default or liens in respect of pledges or deposits
                           under workmen's compensation, unemployment insurance,
                           social  security  laws, or similar  legislation or in
                           connection  with appeal and similar bonds  incidental
                           to litigation; mechanics', warehouseman's,  laborers'
                           and   materialmen's   and  similar   liens,   if  the
                           obligations  secured  by  such  liens  are  not  then
                           delinquent;  liens securing the  performance of bids,
                           tenders,  contracts  (other  than for the  payment of
                           money); and liens securing  statutory  obligations or
                           surety,  indemnity,  performance,  or  other  similar
                           bonds incidental to the conduct of

                                       -3-

<PAGE>



                           the  Company's  business in the  ordinary  course and
                           that do not in the aggregate  materially detract from
                           the value of the Collateral or materially  impair the
                           use thereof in the operation of its business;

                   (vi)    judgment  liens  securing  judgments that (i) are not
                           fully covered by  insurance,  and (ii) shall not have
                           been in  existence  for a period  longer than 10 days
                           after the creation thereof or, if a stay of execution
                           shall have been obtained, for a period longer than 10
                           days after the expiration of such stay;

                  (vii)    rights of lessors under capital leases;

                 (viii)    easements,  rights  of way,  restrictions  and  other
                           similar  charges  or  Encumbrances  relating  to real
                           property and not  interfering  in a material way with
                           the ordinary conduct of the Company's business; and

                   (ix)    liens   constituting   a   renewal,    extension   or
                           replacement of any Permitted Encumbrance.

         "Proceeds"  means all  proceeds of and all other  profits,  rentals and
receipts, in whatever form, arising from the collection,  sale, lease, exchange,
assignment,  licensing  or  other  disposition  of,  or  realization  upon,  any
Collateral,  including,  without  limitation,  all claims of the Company against
third parties for loss of, damage to or destruction of, or for proceeds  payable
under,  or unearned  premiums with respect to,  policies of insurance in respect
of, any Collateral, and any condemnation or requisition payments with respect to
any Collateral, in each case whether now existing or hereafter arising.

         "Securities"  means  all  of  the  securities  and  instruments  of the
Company,  including  without  limitation  all  stocks,  bonds,  Treasury  bills,
certificates of deposit and mutual or money market fund shares; and all sums due
or to become due on any of the  foregoing,  and all  securities,  instruments or
other  property  purchased  or  acquired  as a  result  of  the  investment  and
reinvestment thereof as hereinafter provided.

         "Security  Interest"  means the  security  interest  and liens  granted
pursuant to Section 2 hereof, as well as all other security interests created or
assigned as additional security for the Obligations pursuant to this Agreement.

         "Uniform  Commercial  Code"  means the  Uniform  Commercial  Code as in
effect in the State of Georgia.

         2.       Security Interest and Collateral.

         2.1 Grant.  To secure the payment and  performance of the  Obligations,
the Company  hereby  assigns and pledges to the Secured Party all of its rights,
title and  interest in, and grants to the Secured  Party a  continuing  security
interest in, the Collateral.

                                       -4-

<PAGE>




         2.2 Continued  Priority of Security  Interest.  The Company  represents
that the Security Interest is a valid,  perfect security  interest,  enforceable
against  the  Company,  securing  the  Obligations,  subject  to prior  security
interests in the Collateral that may have been granted by the Company before the
date of this  Agreement.  The Company  shall ensure that the  Security  Interest
shall  at all  times be a valid  and  (except  with  respect  to the  Collateral
consisting  of cash or  bank  deposits  and any  other  Collateral,  a  security
interest  in which  may be  perfected  only by  possession)  perfected  security
interest,   enforceable  against  the  Company,   securing  the  Obligations  in
accordance with the terms of this Agreement, and the Collateral shall not at any
time be subject  to any Liens  that are prior to, on a parity  with or junior to
the Security Interest other than Permitted Encumbrances.

         2.3      Filing; Notification; Refiling, etc.

                  (a) The Company shall, at its sole cost and expense,  take all
action which may be reasonably  required by the Secured Party in order to defend
the Security  Interests and assure that the Security Interests will at all times
comply  with the  provisions  of Section  2.2 or in order to enable the  Secured
Party to exercise or enforce its rights  hereunder,  including,  but not limited
to, (i)  delivering  to the  Secured  Party,  endorsed  or  accompanied  by such
instruments  of  assignment  or  transfer as the  Secured  Party may  reasonably
specify,  and  stamping  and  marking in such  manner as the  Secured  Party may
reasonably specify, any and all chattel paper, instruments,  letters and advices
of credit and documents evidencing or forming a part of the Collateral, and (ii)
executing and  delivering  such  financing  statements,  pledges,  designations,
mortgages,  hypothecations,  notices and  assignments,  in each case in form and
substance  reasonably  satisfactory  to  the  Secured  Party,  relating  to  the
creation,  validity,  perfection,  maintenance or  continuation  of the Security
Interest under the Uniform  Commercial Code or other laws of any jurisdiction in
which the  Collateral or any part thereof is located and of such other states as
the Secured Party may from time to time  reasonably  request.  The Company shall
mark its books and  records as may be  necessary  or  appropriate  to  evidence,
protect or perfect the Security Interest.

                  (b) The Company shall, at its sole cost and expense, from time
to time (i) upon the  request of the  Secured  Party,  take  whatever  steps are
reasonably  required  by the  Secured  Party in order to  perfect  the  Security
Interest with respect to that portion of the Collateral as to which the Security
Interest was not perfected by the filing of Uniform  Commercial  Code  financing
statements,  and (ii) use its  diligent  best  efforts to obtain  all  necessary
consents to the transfer of any contract, license, franchise,  approval or other
agreement which is not transferable without such consents.

                  (c) In the event  that any  rerecording  or  refiling  (or the
filing  of  any  statement  of  continuation  or  assignment  of  any  financing
statement) or any  remortgage,  repledge or  reassignment,  or any  confirmatory
assignment, or any other action, is required or desirable at any time to protect
and preserve and maintain the Security Interest, the Company shall, at its

                                       -5-

<PAGE>



sole  cost and  expense,  cause the same to be done or taken at such time and in
such manner as may be reasonably required by the Secured Party.

                  (d)  Anything  to the  contrary  herein  notwithstanding,  the
Secured  Party  hereby  acknowledges  that  mortgages  with  respect to the real
property  owned by the Company shall not be prepared and filed until the Secured
Party  specifically so requests in writing to the Company.  Upon receipt of such
written request from the Secured Party,  the Company shall promptly  prepare and
file such mortgages.

         2.4  Appointment  as Attorney and Agent for the Company with Respect to
Security Interest.  The Company hereby irrevocably appoints the Secured Party as
its lawful attorney and agent,  with full power of substitution,  to execute and
deliver,  on  behalf  of  and  in the  name  of  such  Company,  such  financing
statements,  assignments,  mortgages,  notices,  pledges and other documents and
agreements, and to take such other action (including any contemplated by Section
2.1, 2.2 or 2.3), as the Secured  Party may  reasonably  deem  necessary for the
purpose of the creation, perfection, maintenance or continuation of the Security
Interest,  under any applicable law, and the Secured Party is hereby  authorized
to file on behalf of and in the name of the Company,  at the Company's  expense,
such financing statements,  assignments,  mortgages,  notices, pledges and other
documents and agreements in any appropriate  governmental  office.  The right is
expressly granted to the Secured Party in its discretion, in those jurisdictions
where the same is permitted,  to file one or more financing statements under the
Uniform Commercial Code signed only by the Secured Party,  naming the Company as
debtor and naming the Secured Party as secured party and indicating  therein the
types, or describing the items, of the Collateral.

         2.5 Disposition of Collateral. So long as any of the Obligations of the
Company is  outstanding  and unpaid and  unless  the  Secured  Party  shall have
otherwise consented in writing, the Company shall not sell, assign,  transfer or
otherwise  dispose of any  Collateral  to anyone  other than the Secured  Party,
provided,  however, that,  notwithstanding the foregoing,  so long as no Default
shall have occurred and be continuing, (i) Inventory may be sold in the ordinary
course of business and (ii)  Equipment and Inventory  that is, in the reasonable
judgment  of the  Company,  obsolete  or no longer  useful in the conduct of the
Company's  business may be sold or disposed of. The  inclusion of  "proceeds" of
the Collateral under the Security  Interest shall not be deemed a consent by the
Secured  Party  to any  sale  or  other  disposition  of any  part or all of the
Collateral.

         2.6  Location  of  Collateral;   Change  of  Name,   etc.  The  Company
represents, warrants and covenants that:

                  (a) The Company's chief  executive  office and principal place
of business,  and the books and relating to the  Collateral of the Company,  are
located at 138B Sherrel  Avenue,  Jackson,  Georgia 30233.  The Company will not
move its chief executive offices,  principal places of business or the books and
records  specified  in this  subsection  (a),  or change  its name or  identity,
without giving the Secured Party sixty days' prior notice thereof.


                                       -6-

<PAGE>



                  (b) The present  corporate name of the Company is as set forth
on  the  signature  page  hereto.  Following  the  closing  under  the  Purchase
Agreement,  the  Company  shall  change its name to  "GreenMan  Technologies  of
Georgia,  Inc.," and the Company shall not thereafter change such name,  conduct
its business in any name other than such name or take title to any Collateral in
any name other than such name while this  Security  Agreement  remains in effect
until (i) it shall have given to the Secured  Party not less than 60 days' prior
written  notice of its intention to do so,  setting forth such name or names and
providing such other  information  in connection  therewith as the Secured Party
may  reasonably  request,  and (ii) with  respect to such new name or names,  it
shall  have  take such  action  as the  Secured  Party  may  reasonably  request
(including,  without limitation,  all action required by Section 2.3 hereof), to
maintain the Security Interest granted hereby in full force and effect.

                  (c) The Equipment and Inventory included in the Collateral are
located at the addresses set forth on the schedule  attached  hereto as Schedule
A. The Equipment and Inventory will be kept solely at the locations  referred to
on Schedule A and will not be moved  (except to another  location  listed on the
Schedule  A),  sold or  otherwise  disposed  of except to the  extent  expressly
permitted  hereunder.  None of the Inventory is stored with or in the possession
of any bailee,  consignee,  warehouseman,  or other similar person.  The Company
shall  not  establish  any new  location  until (i) it shall  have  given to the
Secured Party not less than 60 days' prior written notice of its intention so to
do, clearly describing such new location and providing such other information in
connection  therewith as the Secured Party may reasonably request, and (ii) with
respect  to such new  location,  it shall have  taken  such  action,  reasonably
satisfactory to the Secured Party  (including,  without  limitation,  all action
required by Section 2.3  hereof),  to maintain  the  Security  Interest  granted
hereby at all times fully perfected and in full force and effect. The Collateral
shall be  insured  at all  times  against  all  expected  risks  to  which  such
Collateral  may be  exposed,  including  without  limitation  fire and  extended
coverage.

         2.7 Notice to Account Debtors; Possession of Collateral. If there shall
occur and be  continuing  for in excess of ten (10) days without being waived or
cured any Default, the Secured Party may do any or all of the following:

                  (a) The Secured  Party may (i) notify,  or request the Company
to notify, in writing any account debtor or other obligor with respect to any of
the Collateral to make payment to the Secured Party, or any agent or designee of
the Secured Party,  at such address as may be specified by the Secured Party, or
(ii) direct the Company to hold all payments  which it receives  with respect to
any of the Collateral in trust for the Secured  Party,  and the Company shall so
hold such funds  without  commingling  them with other  funds of the Company and
shall,  in  accordance  with the  directions  of the Secured  Party,  either (A)
deliver the same to the Secured  Party,  or any agent or designee of the Secured
Party,  immediately  upon receipt by the Company in the identical form received,
together with any necessary  endorsements,  or (B) immediately deposit them in a
separate  account  maintained  with or by any agent or  designee  of the Secured
Party,  in which only such payments and other  proceeds of  Collateral  shall be
deposited. When any notice to make payments directly to the Secured Party or any
such agent or designee shall have been given  pursuant to clause (i) above,  the
Company shall no longer

                                       -7-

<PAGE>



have any right to collect the affected Collateral. If notwithstanding the giving
of any notice,  any account  debtor or other  obligor  shall make payment to the
Company  the Company  shall hold all such  payments it receives in trust for the
Secured Party without  commingling  the same with other funds of the Company and
shall  deliver  the same to the  Secured  Party or any such  agent or  designee,
immediately upon receipt by the Company in the identical form received, together
with any  necessary  endorsements.  The Company  shall not,  without the Secured
Party's  consent,  grant any  extension  of time for payment with respect to the
Collateral,  compromise,  compound  or  settle  the same for less  than the full
amount  thereof,  release  wholly or partly  any person  liable for the  payment
thereof,  or allow any credit or discount whatsoever thereon. In its own name or
in the name of the Company or the Secured  Party,  the Secured Party may demand,
sue for,  collect or receive  any of the  Collateral  or any  payment in respect
thereof.  The Secured  Party may settle or adjust  disputes and claims  directly
with account  debtors and other obligors of the Company for amounts and on terms
which the Secured Party  considers  advisable and may endorse the Company's name
on any checks, notes, acceptances,  drafts or other forms of payment or security
that may come into the Secured  Party's  possession.  Nothing  herein  contained
shall be  construed as requiring  or  obligating  the Secured  Party or any such
agent or designee, to make any demand, or to make an inquiry as to the nature of
sufficiency  of any  payment  received  by it or to present or file any claim or
notice or take any action with respect to any Collateral or the monies due or to
become due  thereunder  or to take any steps  necessary  to preserve  any rights
against prior parties. Neither the Secured Party nor its agent or designee shall
have any  liability to the Company for actions  taken in good faith  pursuant to
this Section.

                  (b) The  Secured  Party may,  but shall not be  obligated  to,
deliver any amounts  received  from,  or deposited  by, the Company  pursuant to
paragraph (a) above to the Company for use by the Company in the ordinary course
of its business, but the security interest in any such proceeds delivered to the
Company  shall  continue  and shall not be  affected  by such  delivery  and the
Company  shall not  commingle  any proceeds so  delivered  with any of its other
funds.

                  (c) The  Secured  Party may at any time and from time to time,
with or without judicial process or the aid or assistance of others:  enter upon
any premises in which  Collateral  may be located  and,  without  resistance  or
interference by the Company, take physical possession of any items of Collateral
and maintain such  possession on the Company's  premises or move the same or any
part  thereof to such other  places as the Secured  Party shall  choose  without
being  liable to the  Company on account of any losses,  damage or  depreciation
that may  occur as a result  thereof  so long as the  Secured  Party  shall  act
reasonably  and in good faith;  dispose of all or any part of the  Collateral on
any premises of the Company;  require the Company to assemble and make available
to the  Secured  Party  at the  expense  of the  Company  all or any part of the
Collateral at any place and time  designated by the Secured Party; or remove all
or any part of the Collateral from any premises in which any part may be located
for the purpose of effecting sale or other disposition thereof.

         2.8  Additional  Rights.  In addition to all other  rights and remedies
granted to the Secured Party  hereunder and by operation of law or otherwise and
not in derogation of any such rights, the Secured Party may without presentment,
demand, protest or other notice of any kind,

                                       -8-

<PAGE>



all of which are hereby  expressly  waived,  exercise  all of the  remedies of a
secured party under the Uniform  Commercial Code of as enacted in any applicable
jurisdiction  in which any Collateral may be located.  In addition,  the Company
agrees that  without the same having the effect of  releasing  any or all of the
Collateral or otherwise  prejudicing any rights of the Secured Party  hereunder,
the Secured Party may (a) grant extensions, renewals or indulgences with respect
to the  Obligations;  (b) take or release  other  property as  security  for the
Obligations,   and  may  release  any  obligor  or  other  person  primarily  or
secondarily  liable for any of the Obligations;  and (c) (i) sell or cause to be
sold such of the  Collateral  as it may in its sole  discretion  deem  desirable
without being required  simultaneously  or later similarly to sell or dispose of
the balance of the  Collateral  or any other  property or other  security at the
time available to it and without being required to resort to any guaranty or any
other security or sources of reimbursement which may at the time be available to
it; and (ii) apply to the  Obligations  the  proceeds of the  Collateral  or any
portion  thereof,  or any amount  received on account of the  Collateral  or any
portion  thereof,  by the  exercise of any right  permitted  hereunder,  without
resorting to and without  regard to any guaranty,  other  security or sources of
reimbursement which may at the time be available to it.

         Without  limiting the  generality  of the foregoing or anything else in
this  Agreement,  the Secured Party may buy any part or all of the Collateral at
any  public  sale  and  if any  part  or  all  of  the  Collateral  is of a type
customarily  sold in a recognized  market or is of the type which is the subject
of widely-distributed  standard price quotations,  the Secured Party may, in its
sole and absolute discretion, buy at private sale and may make payments therefor
by any means including without limitation  cancellation of indebtedness  secured
thereby. The Company recognizes that the Secured Party may be unable to effect a
public  sale of certain  of the  Collateral  by reason of  certain  prohibitions
contained in federal and state  securities laws, or in other applicable laws, to
which such  Collateral  may be subject but may be  compelled to resort to one or
more private  sales  thereof to a restricted  group of  purchasers.  The Company
agrees  that any such  private  sales may be at  prices  and  other  terms  less
favorable to the seller than if sold at public sales and that such private sales
shall be  deemed  to have been made in a  commercially  reasonable  manner.  The
Secured  Party  shall  be  under  no  obligation  to  delay a sale of any of the
Collateral  for the  period  of time  necessary  to  permit  the  issuer  of any
securities  constituting  a part thereof to register such  securities for public
sale under the said federal or state  securities  laws or other  applicable law,
even if the issuer would agree to do so.

         2.9  Application of Proceeds.  All proceeds from each sale of, or other
realization  upon, all or any part of the  Collateral of the Company,  including
without limiting the foregoing all amounts paid to or deposited with the Secured
Party pursuant to Section 2.7(a), shall be applied or paid over as follows:

                  (i)   first,  to the  payment  of  all  reasonable  costs  and
                        expenses  incurred in connection with such sale or other
                        realization, including reasonable attorneys' fees;


                                       -9-

<PAGE>



                 (ii)   second,  to the  payment  of the  Obligations  (with the
                        Company remaining liable for any deficiency); and

                (iii)   third,  the balance (if any) of such  proceeds  from the
                        sale of, or other  realization  upon, all or any part of
                        the  Collateral  of the  Company  shall  be  paid to the
                        Company, subject to any duty imposed by law or otherwise
                        to the holder of any subordinate  lien in the Collateral
                        known to the Secured  Party or subject to the  direction
                        of a court of competent jurisdiction.

         3.       Miscellaneous.

         3.1        Notices.

Any  notice,  request or other  communication  required or desired to be served,
given or delivered  under this Pledge shall be in writing and shall be deemed to
have been validly served,  given or delivered five (5) days after deposit in the
United States mails,  registered or certified  mail, with proper postage prepaid
and addressed to the party to be notified as follows:


If to the Company:                         c/o GreenMan Technologies, Inc.
                                           7 Kimball Lane, Building A
                                           Lynnfield, Massachusetts  01940
                                           Attention:  Maurice E. Needham
                                           Telephone:  (617) 224-2411
                                           Telecopy:   (617) 224-0014

With a copy to:                            Sullivan & Worcester LLP
                                           One Post Office Square
                                           Boston, Massachusetts  02109
                                           Attention:  John A. Piccione, Esq.
                                           Telephone:  (617) 338-2800
                                           Telecopy:   (617) 338-2880

If to the Secured Party:                   Browning Ferris Industries, Inc.
                                           757 North Eldridge
                                           Houston, Texas  77079
                                           Attention:  Secretary
                                           Telephone: (281) 870-8100
                                           Telecopy:  (281) 870-7825


                                      -10-

<PAGE>




With a copy to:                            Browning Ferris Industries, Inc.
                                           757 North Eldridge
                                           Houston, Texas 77079
                                           Attention:  John A. Hale, Jr., Esq.
                                           Telephone:  (281) 870-7138
                                           Telecopy:    (281) 870-7825

or to such other address as either party may  hereafter  designate for itself by
written notice to the other party in the manner herein prescribed.

         3.2 Waivers.  The rights and  remedies of the Secured  Party under this
Agreement  shall be cumulative and not exclusive of any rights or remedies which
it would  otherwise  have,  now or hereafter  existing at law or in equity or by
statute or otherwise, and no failure or delay by the Secured Party in exercising
any right  shall  operate  as a waiver of such  right,  nor shall any  single or
partial exercise of any power or right preclude its other or further exercise or
the  exercise  of any other power or right.  Any term,  covenant,  agreement  or
condition  of this  Agreement  may be amended  with the  written  consent of the
Company and the Secured  Party or  compliance  therewith  may be waived  (either
generally or in a particular instance and either retroactively or prospectively)
in writing by the Secured  Party,  and in any such event the failure to observe,
perform or discharge any such  covenant,  condition or obligation  (whether such
amendment  is executed or such  consent or waiver is given  before or after such
failure)  shall not be  construed  as a breach of such  covenant,  condition  or
obligation or a default hereunder.

         3.3 Specific Performance. The Company recognizes that the rights of the
Secured Party hereunder are unique and, accordingly, the Secured Party shall, in
addition to such other  remedies as may be  available to it at law or in equity,
have the right to enforce its rights hereunder by actions for injunctive  relief
and specific  performance  to the extent  permitted  by law. The Company  hereby
waives any  requirement  for  security or the posting of any bond in  connection
with  any  temporary  or  permanent  award  of  injunctive,  mandatory  or other
equitable relief.  This agreement is not intended to limit or abridge any rights
of the Secured Party which may exist apart from this agreement.

         3.4  Assignment.  All the provisions of this Agreement shall be binding
upon and  inure to the  benefit  of the  parties  hereto  and  their  respective
successors  and assigns,  except that the Company may not assign or transfer any
of its rights or  obligations  under this  Agreement  without the prior  written
consent of the Secured Party.

         3.5  Defeasance.  This  Security  Agreement  shall  terminate  upon the
payment and  performance of the  Obligations  in full;  provided that, if at any
time any  payment  made in  respect of the  Obligations  shall be  recovered  or
rescinded  by or on behalf  of the  Company  or must be  otherwise  restored  or
returned,  whether upon the  insolvency,  bankruptcy  or  reorganization  of the
Company or  otherwise,  the Company's  obligations  under this  Agreement  shall
continue to

                                      -11-

<PAGE>




be effective or be reinstated,  as the case may be, and shall continue as though
such payment had not been made.

         3.6  Counterparts.  This  Agreement  may be  executed  in any number of
counterparts,  each of which  shall be  deemed to be an  original,  but all such
separate counterparts shall together constitute but one and the same instrument.

         3.7 Governing Law. This Agreement shall be governed by and construed in
accordance with the laws (other than the laws governing conflict of law matters)
of The Commonwealth of Massachusetts except to the extent that matters of title,
or creation,  perfection and priority of the security  interests created hereby,
or procedural  issues of foreclosures are required to be governed by the laws of
the state in which the collateral, or part thereof, is located.

         3.8 Severability. Any provision of this Agreement that is prohibited or
unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective
to the extent of such prohibition or unenforceability  without  invalidating the
remaining  provisions  hereof in that  jurisdiction or affecting the validity or
enforceability of such provision in any other jurisdiction.

         3.9 Number. Whenever used herein, the singular number shall include the
plural and the plural shall include the singular.

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


                                              BFI TIRE RECYCLERS OF GEORGIA,
                                               INC.



                                              By: /s/ Robert D. Maust
                                                  Title:  President
                                              BROWNING-FERRIS INDUSTRIES
                                               OF GEORGIA, INC.



                                              By: /s/ Gerald K.  Burger
                                                  Title:  Vice President



                                      -12-

<PAGE>



                                                Schedule A to Security Agreement



                             Location of Collateral



















                               SECURITY AGREEMENT


         This SECURITY AGREEMENT (this "Agreement"),  dated as of June 30, 1997,
by and between BFI Tire  Recyclers of Minnesota,  Inc., a Minnesota  corporation
with a principal  place of business at 12498 Wyoming Avenue,  Savage,  Minnesota
55378 (the  "Company"),  and  Browning-Ferris  Industries of Minnesota,  Inc., a
Minnesota corporation (the "Secured Party").

                                    RECITALS

         A. Pursuant to a Purchase and Sale Agreement  dated as of June 30, 1997
(the "Purchase Agreement") by and among GreenMan Technologies,  Inc., a Delaware
corporation ("GTI"), GreenMan Acquisition Corp., a Delaware corporation ("GAC"),
Browning Ferris Industries,  Inc., a Delaware corporation, the Secured Party and
Browning-Ferris  Industries of Georgia,  Inc.,  GAC has purchased all the issued
and outstanding capital stock of the Company.

         B. Pursuant to the Purchase Agreement, GAC has delivered to the Secured
Party the Note (as  defined in the  Purchase  Agreement)  and is to deliver  the
Final Working Capital Note (as defined in the Purchase  Agreement and,  together
with the Note, the "Notes").

         C. The Secured Party has required as a condition to the consummation of
the transactions  contemplated by the Purchase Agreement, and in order to secure
the  prompt  and  complete  payment,  observance  and  performance  all of GAC's
obligations  and  liabilities   under  the  Notes  (all  such   obligations  and
liabilities  being hereinafter  referred to collectively as the  "Obligations"),
that  the  Company  execute  and  deliver  this  Agreement  and  enter  into the
transactions contemplated hereby.

         NOW, THEREFORE,  in consideration of the premises, of the Secured Party
proceeding  with  the  consummation  of  the  transactions  contemplated  by the
Purchase  Agreement,  and of  other  valuable  consideration,  the  receipt  and
adequacy whereof are hereby  acknowledged,  the parties hereto,  intending to be
legally bound, do covenant and agree as follows:

         1.   Definitions.   All  capitalized   terms  used  herein  or  in  any
certificate,  report or other document  delivered pursuant hereto shall have the
meanings  assigned to them below or in the Purchase  Agreement (unless otherwise
defined).  Except as otherwise defined,  terms defined in the Uniform Commercial
Code shall have the meanings set forth therein.

         "Accounts" means all rights of the Company to payment for goods sold or
leased or for  services  rendered,  all sums of money or other  proceeds  due or
becoming  due  thereon,  all notes,  bills,  drafts,  acceptances,  instruments,
documents and other debts, obligations and liabilities,  in whatever form, owing
to the Company with respect thereto,  all guaranties and security therefor,  and
the Company's  rights  pertaining  to and interest in such goods,  including the
right of stoppage in transit,  replevin or reclamation;  all chattel paper;  all
amounts due from Affiliates of the Company;  all insurance  proceeds;  all other
rights and claims to the payment of money,

                                                      

<PAGE>



under contracts or otherwise;  and all other property constituting "accounts" as
such term is defined in the Uniform Commercial Code.

         "Collateral"  means all real and  personal  property  of the Company of
every  kind and  description,  tangible  and  intangible,  whether  now owned or
existing or hereafter  arising or acquired,  including  without  limitation  all
Accounts,  Equipment,  General Intangibles,  Inventory and Securities,  together
with all goods,  instruments,  documents of title,  policies and certificates of
insurance,  securities,  chattel paper, deposit accounts, cash or other property
owned by the Company or in which the Company has an interest that are now or may
hereafter be in the  possession,  custody or control of the Secured Party or its
participants or assigns for any purpose;  any and all additions,  substitutions,
replacements and accessions  thereto;  all books and records (including computer
programs,  printouts and other computer  materials and records) and all Proceeds
and products of any of the foregoing.

         "Default"   means  any  default  in  the  payment  or   performance  of
obligations under either of the Notes or this Agreement.

         "Encumbrance" means any mortgage,  pledge,  security interest,  lien or
other  charge  or  encumbrance  of  any  kind  or  nature  (including,   without
limitation, the lien or retained security title of a conditional vendor) upon or
with respect to any property.

         "Equipment"  means all  machinery,  equipment and fixtures,  furniture,
furnishings,  trade  fixtures,  specialty  tools and parts,  motor  vehicles and
materials  handling  equipment  of the  Company,  together  with  the  Company's
interest in, and right to, any and all manuals,  computer  programs,  data bases
and other  materials  relating to the use,  operation or structure of any of the
foregoing;  and all  other  property  constituting  "equipment"  as such term is
defined in the Uniform Commercial Code.

         "General  Intangibles"  means all rights  with  respect to  trademarks,
service marks, trade names, trade styles, patents, copyrights, mask works, trade
secrets information,  other proprietary rights and rights to prevent others from
doing   acts  that   constitute   unfair   competition   with  the   Company  or
misappropriation of its property,  including without limitation any sums (net of
expenses) that the Company may receive arising out of any claim for infringement
of its  rights in any of the  foregoing,  and all  rights of the  Company  under
contracts  to enjoy  performance  by others or to be  entitled  to enjoy  rights
granted by others,  including without  limitation any licenses;  all obligations
and  indebtedness  of any kind (other than  Accounts)  owing to the Company from
whatever source  arising;  all contract  rights;  all rights of the Company as a
bailor; all tax refunds;  all right, title and interest of the Company in and to
all documents,  books, records,  files and other information (on whatever medium
recorded,  and including without  limitation  computer programs,  tapes,  discs,
punch  cards,  data  processing   software  and  related  property  and  rights)
maintained  by the Company that reflect the conduct of the  Company's  business,
such as financial records, marketing and sales records, research and development
records,  and design,  engineering and manufacturing  records;  all rights under
service bureau service  contracts;  all computer data and the concepts and ideas
on which said data

                                       -2-

<PAGE>



is based;  all  developmental  ideas and concepts,  papers,  plans,  schematics,
drawings,  blueprints,  sketches  and  documents;  all data bases;  all customer
lists; and all other property constituting "general intangibles" as such term is
defined in the Uniform Commercial Code.

         "Inventory"  means all goods,  merchandise and other personal  property
(including warehouse receipts and other negotiable and non-negotiable  documents
of title  covering  any such  property)  of the Company  that are held for sale,
lease or other  disposition,  or are to be furnished under contracts of service,
or for  display  or  demonstration,  or  leased  or  consigned,  or that are raw
materials,  piece goods,  work-in-process,  finished  goods or supplies or other
materials used or consumed or to be used or consumed in the Company's  business,
whether in transit or in the  possession  of the Company or  another,  including
without  limitation  all goods  covered by purchase  orders and  contracts  with
suppliers  and all goods billed and held by suppliers  and goods  located on the
premises of any carriers,  forwarding agents, truckers,  warehousemen,  vendors,
selling agents or other third parties; all proprietary rights,  patents,  plans,
drawings, diagrams,  schematics,  assembly and display materials relating to any
of the foregoing;  and all other property constituting  "inventory" as such term
is defined in the Uniform Commercial Code.

         "Permitted Encumbrances" means the following:

                  (i)   Encumbrances  in favor of the  Secured  Party to  secure
                        Obligations;

                 (ii)   Encumbrances  existing as of the date of this  Agreement
                        and disclosed in Section 2.09 of the Purchase  Agreement
                        and Schedule 2.09 thereto;

                (iii)   Encumbrances  securing  indebtedness  for  the  purchase
                        price of  capital  assets,  provided  that (i) each such
                        Encumbrance is given solely to secure the purchase price
                        of such property,  does not extend to any other property
                        and is given at the time of acquisition of the property,
                        and  (ii)  the  indebtedness  secured  thereby  does not
                        exceed  the lesser of the cost of such  property  or its
                        fair market value at the time of acquisition;

                 (iv)   liens   for   taxes,   fees,   assessments   and   other
                        governmental  charges to the extent that  payment of the
                        same may be postponed or is not required;

                  (v)   landlords'  and lessors' liens in respect of rent not in
                        default or liens in respect of pledges or deposits under
                        workmen's compensation,  unemployment insurance,  social
                        security  laws, or similar  legislation or in connection
                        with appeal and similar bonds  incidental to litigation;
                        mechanics', warehouseman's,  laborers' and materialmen's
                        and similar liens,  if the  obligations  secured by such
                        liens  are  not  then  delinquent;  liens  securing  the
                        performance of bids, tenders,  contracts (other than for
                        the  payment of  money);  and liens  securing  statutory
                        obligations or surety, indemnity,  performance, or other
                        similar bonds incidental to the conduct of the Company's
                        business in the ordinary course and that do not in the

                                       -3-

<PAGE>



                        aggregate  materially  detract  from  the  value  of the
                        Collateral or  materially  impair the use thereof in the
                        operation of its business;

                 (vi)   judgment liens securing judgments that (i) are not fully
                        covered  by  insurance,  and (ii) shall not have been in
                        existence  for a period  longer  than 10 days  after the
                        creation  thereof or, if a stay of execution  shall have
                        been  obtained,  for a period  longer than 10 days after
                        the expiration of such stay;

                (vii)   rights of lessors under capital leases;

                viii)   easements, rights of way, restrictions and other similar
                        charges or  Encumbrances  relating to real  property and
                        not  interfering  in a  material  way with the  ordinary
                        conduct of the Company's business; and

                 (ix)   liens  constituting a renewal,  extension or replacement
                        of any Permitted Encumbrance.

         "Proceeds"  means all  proceeds of and all other  profits,  rentals and
receipts, in whatever form, arising from the collection,  sale, lease, exchange,
assignment,  licensing  or  other  disposition  of,  or  realization  upon,  any
Collateral,  including,  without  limitation,  all claims of the Company against
third parties for loss of, damage to or destruction of, or for proceeds  payable
under,  or unearned  premiums with respect to,  policies of insurance in respect
of, any Collateral, and any condemnation or requisition payments with respect to
any Collateral, in each case whether now existing or hereafter arising.

         "Securities"  means  all  of  the  securities  and  instruments  of the
Company,  including  without  limitation  all  stocks,  bonds,  Treasury  bills,
certificates of deposit and mutual or money market fund shares; and all sums due
or to become due on any of the  foregoing,  and all  securities,  instruments or
other  property  purchased  or  acquired  as a  result  of  the  investment  and
reinvestment thereof as hereinafter provided.

         "Security  Interest"  means the  security  interest  and liens  granted
pursuant to Section 2 hereof, as well as all other security interests created or
assigned as additional security for the Obligations pursuant to this Agreement.

         "Uniform  Commercial  Code"  means the  Uniform  Commercial  Code as in
effect in the State of Minnesota.

         2.       Security Interest and Collateral.

         2.1 Grant.  To secure the payment and  performance of the  Obligations,
the Company  hereby  assigns and pledges to the Secured Party all of its rights,
title and  interest in, and grants to the Secured  Party a  continuing  security
interest in, the Collateral.


                                       -4-

<PAGE>



         2.2 Continued  Priority of Security  Interest.  The Company  represents
that the Security Interest is a valid,  perfect security  interest,  enforceable
against  the  Company,  securing  the  Obligations,  subject  to prior  security
interests in the Collateral that may have been granted by the Company before the
date of this  Agreement.  The Company  shall ensure that the  Security  Interest
shall  at all  times be a valid  and  (except  with  respect  to the  Collateral
consisting  of cash or  bank  deposits  and any  other  Collateral,  a  security
interest  in which  may be  perfected  only by  possession)  perfected  security
interest,   enforceable  against  the  Company,   securing  the  Obligations  in
accordance with the terms of this Agreement, and the Collateral shall not at any
time be subject  to any Liens  that are prior to, on a parity  with or junior to
the Security Interest other than Permitted Encumbrances.

         2.3      Filing; Notification; Refiling, etc.

                  (a) The Company shall, at its sole cost and expense,  take all
action which may be reasonably  required by the Secured Party in order to defend
the Security  Interests and assure that the Security Interests will at all times
comply  with the  provisions  of Section  2.2 or in order to enable the  Secured
Party to exercise or enforce its rights  hereunder,  including,  but not limited
to, (i)  delivering  to the  Secured  Party,  endorsed  or  accompanied  by such
instruments  of  assignment  or  transfer as the  Secured  Party may  reasonably
specify,  and  stamping  and  marking in such  manner as the  Secured  Party may
reasonably specify, any and all chattel paper, instruments,  letters and advices
of credit and documents evidencing or forming a part of the Collateral, and (ii)
executing and  delivering  such  financing  statements,  pledges,  designations,
mortgages,  hypothecations,  notices and  assignments,  in each case in form and
substance  reasonably  satisfactory  to  the  Secured  Party,  relating  to  the
creation,  validity,  perfection,  maintenance or  continuation  of the Security
Interest under the Uniform  Commercial Code or other laws of any jurisdiction in
which the  Collateral or any part thereof is located and of such other states as
the Secured Party may from time to time  reasonably  request.  The Company shall
mark its books and  records as may be  necessary  or  appropriate  to  evidence,
protect or perfect the Security Interest.

                  (b) The Company shall, at its sole cost and expense, from time
to time (i) upon the  request of the  Secured  Party,  take  whatever  steps are
reasonably  required  by the  Secured  Party in order to  perfect  the  Security
Interest with respect to that portion of the Collateral as to which the Security
Interest was not perfected by the filing of Uniform  Commercial  Code  financing
statements,  and (ii) use its  diligent  best  efforts to obtain  all  necessary
consents to the transfer of any contract, license, franchise,  approval or other
agreement which is not transferable without such consents.

                  (c) In the event  that any  rerecording  or  refiling  (or the
filing  of  any  statement  of  continuation  or  assignment  of  any  financing
statement) or any  remortgage,  repledge or  reassignment,  or any  confirmatory
assignment, or any other action, is required or desirable at any time to protect
and preserve and maintain the Security Interest,  the Company shall, at its sole
cost and  expense,  cause  the same to be done or taken at such time and in such
manner as may be reasonably required by the Secured Party.

                                       -5-

<PAGE>



                  (d)  Anything  to the  contrary  herein  notwithstanding,  the
Secured  Party  hereby  acknowledges  that  mortgages  with  respect to the real
property  owned by the Company shall not be prepared and filed until the Secured
Party  specifically so requests in writing to the Company.  Upon receipt of such
written request from the Secured Party,  the Company shall promptly  prepare and
file such mortgages.

         2.4  Appointment  as Attorney and Agent for the Company with Respect to
Security Interest.  The Company hereby irrevocably appoints the Secured Party as
its lawful attorney and agent,  with full power of substitution,  to execute and
deliver,  on  behalf  of  and  in the  name  of  such  Company,  such  financing
statements,  assignments,  mortgages,  notices,  pledges and other documents and
agreements, and to take such other action (including any contemplated by Section
2.1, 2.2 or 2.3), as the Secured  Party may  reasonably  deem  necessary for the
purpose of the creation, perfection, maintenance or continuation of the Security
Interest,  under any applicable law, and the Secured Party is hereby  authorized
to file on behalf of and in the name of the Company,  at the Company's  expense,
such financing statements,  assignments,  mortgages,  notices, pledges and other
documents and agreements in any appropriate  governmental  office.  The right is
expressly granted to the Secured Party in its discretion, in those jurisdictions
where the same is permitted,  to file one or more financing statements under the
Uniform Commercial Code signed only by the Secured Party,  naming the Company as
debtor and naming the Secured Party as secured party and indicating  therein the
types, or describing the items, of the Collateral.

         2.5 Disposition of Collateral. So long as any of the Obligations of the
Company is  outstanding  and unpaid and  unless  the  Secured  Party  shall have
otherwise consented in writing, the Company shall not sell, assign,  transfer or
otherwise  dispose of any  Collateral  to anyone  other than the Secured  Party,
provided,  however, that,  notwithstanding the foregoing,  so long as no Default
shall have occurred and be continuing, (i) Inventory may be sold in the ordinary
course of business and (ii)  Equipment and Inventory  that is, in the reasonable
judgment  of the  Company,  obsolete  or no longer  useful in the conduct of the
Company's  business may be sold or disposed of. The  inclusion of  "proceeds" of
the Collateral under the Security  Interest shall not be deemed a consent by the
Secured  Party  to any  sale  or  other  disposition  of any  part or all of the
Collateral.

         2.6  Location  of  Collateral;   Change  of  Name,   etc.  The  Company
represents, warrants and covenants that:

                  (a) The Company's chief  executive  office and principal place
of business,  and the books and relating to the  Collateral of the Company,  are
located at 12498 Wyoming Avenue South, Savage, Minnesota 55378. The Company will
not move its chief executive offices,  principal places of business or the books
and records  specified in this  subsection  (a), or change its name or identity,
without giving the Secured Party sixty days' prior notice thereof.

                  (b) The present  corporate name of the Company is as set forth
on  the  signature  page  hereto.  Following  the  closing  under  the  Purchase
Agreement,  the  Company  shall  change its name to  "GreenMan  Technologies  of
Minnesota, Inc.," and the Company shall not thereafter

                                       -6-

<PAGE>



change such name,  conduct its business in any name other than such name or take
title to any  Collateral  in any name other  than such name while this  Security
Agreement  remains in effect until (i) it shall have given to the Secured  Party
not less than 60 days' prior written  notice of its intention to do so,  setting
forth such name or names and  providing  such other  information  in  connection
therewith as the Secured Party may reasonably request,  and (ii) with respect to
such new name or names,  it shall have take such action as the Secured Party may
reasonably  request  (including,  without  limitation,  all action  required  by
Section 2.3 hereof),  to maintain the Security  Interest  granted hereby in full
force and effect.

                  (c) The Equipment and Inventory included in the Collateral are
located at the addresses set forth on the schedule  attached  hereto as Schedule
A. The Equipment and Inventory will be kept solely at the locations  referred to
on Schedule A and will not be moved  (except to another  location  listed on the
Schedule  A),  sold or  otherwise  disposed  of except to the  extent  expressly
permitted  hereunder.  None of the Inventory is stored with or in the possession
of any bailee,  consignee,  warehouseman,  or other similar person.  The Company
shall  not  establish  any new  location  until (i) it shall  have  given to the
Secured Party not less than 60 days' prior written notice of its intention so to
do, clearly describing such new location and providing such other information in
connection  therewith as the Secured Party may reasonably request, and (ii) with
respect  to such new  location,  it shall have  taken  such  action,  reasonably
satisfactory to the Secured Party  (including,  without  limitation,  all action
required by Section 2.3  hereof),  to maintain  the  Security  Interest  granted
hereby at all times fully perfected and in full force and effect. The Collateral
shall be  insured  at all  times  against  all  expected  risks  to  which  such
Collateral  may be  exposed,  including  without  limitation  fire and  extended
coverage.

         2.7 Notice to Account Debtors; Possession of Collateral. If there shall
occur and be  continuing  for in excess of ten (10) days without being waived or
cured any Default, the Secured Party may do any or all of the following:

                  (a) The Secured  Party may (i) notify,  or request the Company
to notify, in writing any account debtor or other obligor with respect to any of
the Collateral to make payment to the Secured Party, or any agent or designee of
the Secured Party,  at such address as may be specified by the Secured Party, or
(ii) direct the Company to hold all payments  which it receives  with respect to
any of the Collateral in trust for the Secured  Party,  and the Company shall so
hold such funds  without  commingling  them with other  funds of the Company and
shall,  in  accordance  with the  directions  of the Secured  Party,  either (A)
deliver the same to the Secured  Party,  or any agent or designee of the Secured
Party,  immediately  upon receipt by the Company in the identical form received,
together with any necessary  endorsements,  or (B) immediately deposit them in a
separate  account  maintained  with or by any agent or  designee  of the Secured
Party,  in which only such payments and other  proceeds of  Collateral  shall be
deposited. When any notice to make payments directly to the Secured Party or any
such agent or designee shall have been given  pursuant to clause (i) above,  the
Company  shall no longer have any right to collect the affected  Collateral.  If
notwithstanding  the giving of any notice,  any account  debtor or other obligor
shall make  payment to the Company the Company  shall hold all such  payments it
receives in trust for the Secured Party without commingling the same with

                                       -7-

<PAGE>



other funds of the Company  and shall  deliver the same to the Secured  Party or
any such agent or  designee,  immediately  upon  receipt  by the  Company in the
identical form received,  together with any necessary endorsements.  The Company
shall not, without the Secured Party's consent,  grant any extension of time for
payment with respect to the Collateral,  compromise, compound or settle the same
for less than the full  amount  thereof,  release  wholly or partly  any  person
liable  for the  payment  thereof,  or allow any credit or  discount  whatsoever
thereon. In its own name or in the name of the Company or the Secured Party, the
Secured Party may demand,  sue for,  collect or receive any of the Collateral or
any payment in respect thereof.  The Secured Party may settle or adjust disputes
and claims  directly with account  debtors and other obligors of the Company for
amounts and on terms which the Secured Party considers advisable and may endorse
the Company's name on any checks, notes,  acceptances,  drafts or other forms of
payment or security that may come into the Secured Party's  possession.  Nothing
herein contained shall be construed as requiring or obligating the Secured Party
or any such agent or designee,  to make any demand,  or to make an inquiry as to
the nature of  sufficiency  of any payment  received by it or to present or file
any claim or notice or take any action  with  respect to any  Collateral  or the
monies  due or to  become  due  thereunder  or to take any  steps  necessary  to
preserve any rights  against  prior  parties.  Neither the Secured Party nor its
agent or designee  shall have any  liability to the Company for actions taken in
good faith pursuant to this Section.

                  (b) The  Secured  Party may,  but shall not be  obligated  to,
deliver any amounts  received  from,  or deposited  by, the Company  pursuant to
paragraph (a) above to the Company for use by the Company in the ordinary course
of its business, but the security interest in any such proceeds delivered to the
Company  shall  continue  and shall not be  affected  by such  delivery  and the
Company  shall not  commingle  any proceeds so  delivered  with any of its other
funds.

                  (c) The  Secured  Party may at any time and from time to time,
with or without judicial process or the aid or assistance of others:  enter upon
any premises in which  Collateral  may be located  and,  without  resistance  or
interference by the Company, take physical possession of any items of Collateral
and maintain such  possession on the Company's  premises or move the same or any
part  thereof to such other  places as the Secured  Party shall  choose  without
being  liable to the  Company on account of any losses,  damage or  depreciation
that may  occur as a result  thereof  so long as the  Secured  Party  shall  act
reasonably  and in good faith;  dispose of all or any part of the  Collateral on
any premises of the Company;  require the Company to assemble and make available
to the  Secured  Party  at the  expense  of the  Company  all or any part of the
Collateral at any place and time  designated by the Secured Party; or remove all
or any part of the Collateral from any premises in which any part may be located
for the purpose of effecting sale or other disposition thereof.

         2.8  Additional  Rights.  In addition to all other  rights and remedies
granted to the Secured Party  hereunder and by operation of law or otherwise and
not in derogation of any such rights, the Secured Party may without presentment,
demand,  protest or other notice of any kind, all of which are hereby  expressly
waived,  exercise  all of the  remedies  of a secured  party  under the  Uniform
Commercial  Code of as  enacted  in any  applicable  jurisdiction  in which  any
Collateral may be located. In addition, the Company agrees that without the same
having the

                                       -8-

<PAGE>



effect of releasing any or all of the  Collateral or otherwise  prejudicing  any
rights  of the  Secured  Party  hereunder,  the  Secured  Party  may  (a)  grant
extensions, renewals or indulgences with respect to the Obligations; (b) take or
release  other  property as security  for the  Obligations,  and may release any
obligor  or  other  person  primarily  or  secondarily  liable  for  any  of the
Obligations;  and (c) (i) sell or cause to be sold such of the  Collateral as it
may in its sole discretion deem desirable without being required  simultaneously
or later  similarly to sell or dispose of the balance of the  Collateral  or any
other  property or other  security at the time available to it and without being
required  to  resort  to any  guaranty  or any  other  security  or  sources  of
reimbursement  which may at the time be  available  to it; and (ii) apply to the
Obligations the proceeds of the Collateral or any portion thereof, or any amount
received on account of the Collateral or any portion thereof, by the exercise of
any right permitted  hereunder,  without  resorting to and without regard to any
guaranty,  other security or sources of  reimbursement  which may at the time be
available to it.

         Without  limiting the  generality  of the foregoing or anything else in
this  Agreement,  the Secured Party may buy any part or all of the Collateral at
any  public  sale  and  if any  part  or  all  of  the  Collateral  is of a type
customarily  sold in a recognized  market or is of the type which is the subject
of widely-distributed  standard price quotations,  the Secured Party may, in its
sole and absolute discretion, buy at private sale and may make payments therefor
by any means including without limitation  cancellation of indebtedness  secured
thereby. The Company recognizes that the Secured Party may be unable to effect a
public  sale of certain  of the  Collateral  by reason of  certain  prohibitions
contained in federal and state  securities laws, or in other applicable laws, to
which such  Collateral  may be subject but may be  compelled to resort to one or
more private  sales  thereof to a restricted  group of  purchasers.  The Company
agrees  that any such  private  sales may be at  prices  and  other  terms  less
favorable to the seller than if sold at public sales and that such private sales
shall be  deemed  to have been made in a  commercially  reasonable  manner.  The
Secured  Party  shall  be  under  no  obligation  to  delay a sale of any of the
Collateral  for the  period  of time  necessary  to  permit  the  issuer  of any
securities  constituting  a part thereof to register such  securities for public
sale under the said federal or state  securities  laws or other  applicable law,
even if the issuer would agree to do so.

         2.9  Application of Proceeds.  All proceeds from each sale of, or other
realization  upon, all or any part of the  Collateral of the Company,  including
without limiting the foregoing all amounts paid to or deposited with the Secured
Party pursuant to Section 2.7(a), shall be applied or paid over as follows:

                  (i)   first,  to the  payment  of  all  reasonable  costs  and
                        expenses  incurred in connection with such sale or other
                        realization, including reasonable attorneys' fees;

                 (ii)   second,  to the  payment  of the  Obligations  (with the
                        Company remaining liable for any deficiency); and


                                       -9-

<PAGE>



                (iii)   third,  the balance (if any) of such  proceeds  from the
                        sale of, or other  realization  upon, all or any part of
                        the  Collateral  of the  Company  shall  be  paid to the
                        Company, subject to any duty imposed by law or otherwise
                        to the holder of any subordinate  lien in the Collateral
                        known to the Secured  Party or subject to the  direction
                        of a court of competent jurisdiction.

         3.       Miscellaneous.

         3.1        Notices.

Any  notice,  request or other  communication  required or desired to be served,
given or delivered  under this Pledge shall be in writing and shall be deemed to
have been validly served,  given or delivered five (5) days after deposit in the
United States mails,  registered or certified  mail, with proper postage prepaid
and addressed to the party to be notified as follows:


If to the Company:                         c/o GreenMan Technologies, Inc.
                                           7 Kimball Lane, Building A
                                           Lynnfield, Massachusetts  01940
                                           Attention:  Maurice E. Needham
                                           Telephone:  (617) 224-2411
                                           Telecopy:   (617) 224-0014

With a copy to:                            Sullivan & Worcester LLP
                                           One Post Office Square
                                           Boston, Massachusetts  02109
                                           Attention:  John A. Piccione, Esq.
                                           Telephone:  (617) 338-2800
                                           Telecopy:   (617) 338-2880

If to the Secured Party:                   Browning Ferris Industries, Inc.
                                           757 North Eldridge
                                           Houston, Texas  77079
                                           Attention:  Secretary
                                           Telephone:  (281) 870-8100
                                           Telecopy:  (281) 870-7825

With a copy to:                            Browning Ferris Industries, Inc.
                                           757 North Eldridge
                                           Houston, Texas 77079
                                           Attention:  John A. Hale, Jr., Esq.
                                           Telephone:  (281) 870-7138
                                           Telecopy:    (281) 870-7825


                                      -10-

<PAGE>



or to such other address as either party may  hereafter  designate for itself by
written notice to the other party in the manner herein prescribed.

         3.2 Waivers.  The rights and  remedies of the Secured  Party under this
Agreement  shall be cumulative and not exclusive of any rights or remedies which
it would  otherwise  have,  now or hereafter  existing at law or in equity or by
statute or otherwise, and no failure or delay by the Secured Party in exercising
any right  shall  operate  as a waiver of such  right,  nor shall any  single or
partial exercise of any power or right preclude its other or further exercise or
the  exercise  of any other power or right.  Any term,  covenant,  agreement  or
condition  of this  Agreement  may be amended  with the  written  consent of the
Company and the Secured  Party or  compliance  therewith  may be waived  (either
generally or in a particular instance and either retroactively or prospectively)
in writing by the Secured  Party,  and in any such event the failure to observe,
perform or discharge any such  covenant,  condition or obligation  (whether such
amendment  is executed or such  consent or waiver is given  before or after such
failure)  shall not be  construed  as a breach of such  covenant,  condition  or
obligation or a default hereunder.

         3.3 Specific Performance. The Company recognizes that the rights of the
Secured Party hereunder are unique and, accordingly, the Secured Party shall, in
addition to such other  remedies as may be  available to it at law or in equity,
have the right to enforce its rights hereunder by actions for injunctive  relief
and specific  performance  to the extent  permitted  by law. The Company  hereby
waives any  requirement  for  security or the posting of any bond in  connection
with  any  temporary  or  permanent  award  of  injunctive,  mandatory  or other
equitable relief.  This agreement is not intended to limit or abridge any rights
of the Secured Party which may exist apart from this agreement.

         3.4  Assignment.  All the provisions of this Agreement shall be binding
upon and  inure to the  benefit  of the  parties  hereto  and  their  respective
successors  and assigns,  except that the Company may not assign or transfer any
of its rights or  obligations  under this  Agreement  without the prior  written
consent of the Secured Party.

         3.5  Defeasance.  This  Security  Agreement  shall  terminate  upon the
payment and  performance of the  Obligations  in full;  provided that, if at any
time any  payment  made in  respect of the  Obligations  shall be  recovered  or
rescinded  by or on behalf  of the  Company  or must be  otherwise  restored  or
returned,  whether upon the  insolvency,  bankruptcy  or  reorganization  of the
Company or  otherwise,  the Company's  obligations  under this  Agreement  shall
continue  to be  effective  or be  reinstated,  as the  case may be,  and  shall
continue as though such payment had not been made.

         3.6  Counterparts.  This  Agreement  may be  executed  in any number of
counterparts,  each of which  shall be  deemed to be an  original,  but all such
separate counterparts shall together constitute but one and the same instrument.

         3.7 Governing Law. This Agreement shall be governed by and construed in
accordance with the laws (other than the laws governing conflict of law matters)
of The

                                      -11-

<PAGE>




Commonwealth  of  Massachusetts  except to the extent that matters of title,  or
creation,  perfection and priority of the security  interests created hereby, or
procedural issues of foreclosures are required to be governed by the laws of the
state in which the collateral, or part thereof, is located.

         3.8 Severability. Any provision of this Agreement that is prohibited or
unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective
to the extent of such prohibition or unenforceability  without  invalidating the
remaining  provisions  hereof in that  jurisdiction or affecting the validity or
enforceability of such provision in any other jurisdiction.

         3.9 Number. Whenever used herein, the singular number shall include the
plural and the plural shall include the singular.

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


                                              BFI TIRE RECYCLERS OF MINNESOTA,
                                               INC.



                                              By: /s/ Robert D. Maust
                                                  Title:  President
                                              BROWNING-FERRIS INDUSTRIES
                                               OF MINNESOTA, INC.



                                              By: /s/ Gerald K.  Burger
                                                  Title:  Vice President



                                      -12-

<PAGE>



                                                Schedule A to Security Agreement



                             Location of Collateral













                                PLEDGE AGREEMENT


         This PLEDGE  AGREEMENT  (this  "Pledge") is entered into as of the 30th
day of  June,  1997  by  GreenMan  Acquisition  Corp.,  a  Delaware  corporation
("Pledgor")  in  favor of  Browning-Ferris  Industries  of  Minnesota,  Inc.,  a
Minnesota  corporation,  and  Browning-Ferris  Industries  of Georgia,  Inc.,  a
Georgia corporation (collectively, "Pledgee").

                                   WITNESSETH:

         A Pursuant to a Purchase and Sale  Agreement  dated as of June 30, 1997
(the "Purchase  Agreement") by and among GreenMan  Technologies,  Inc., Browning
Ferris Industries,  Inc., Pledgor and Pledgee, Pledgor has acquired from Pledgee
all the issued and outstanding capital stock of BFI Tire Recyclers of Minnesota,
Inc., a Minnesota corporation ("BTM"), and BFI Tire Recyclers of Georgia,  Inc.,
a Georgia corporation ("BTG").

         B. Pursuant to the Purchase Agreement, Pledgor has delivered to Pledgee
the Note (as  defined in the  Purchase  Agreement)  and is to deliver  the Final
Working  Capital Note (as defined in the Purchase  Agreement and,  together with
the Note, the "Notes").

         C.  Pledgee  has  required as a condition  to the  consummation  of the
transactions  contemplated by the Purchase Agreement, and in order to secure the
prompt and complete payment, observance and performance of Pledgor's obligations
under the Agreement and all of Pledgor's  obligations and liabilities  under the
Notes (all such  obligations  and  liabilities  being  hereinafter  referred  to
collectively as the "Obligations"), that Pledgor execute and deliver this Pledge
to Pledgee.

         NOW, THEREFORE, for and in consideration of the foregoing and for other
good and valuable consideration,  the receipt and sufficiency of which is hereby
acknowledged, the parties hereto hereby agree as follows:

         1.   Definitions.   All  capitalized   terms  used  herein  or  in  any
certificate,  report or other document  delivered pursuant hereto shall have the
meanings  assigned to them below or in the Purchase  Agreement (unless otherwise
defined):

         "Collateral" means the Pledged Shares (as hereinafter  defined) and any
other  property at any time,  whether now or  hereafter,  pledged  with  Pledgee
hereunder (whether described herein or not) and all income therefrom,  increases
therein; proceeds thereof and replacements and substitutions therefor.

         "Default" means Pledgor's failure to observe or perform any obligations
under this Pledge or to pay any and all amounts due under the Notes.

         "Pledged  Shares"  means all shares of the capital  stock of BTM or BTG
now or at any time or times hereafter owned by Pledgor.


                                                       

<PAGE>



         2. Grant of Security  Interest.  As security for the complete  payment,
observance and performance of the Obligations, Pledgor hereby grants to Pledgee,
a security  interest in the  Collateral.  Certificates  representing  all of the
Pledged  Shares,  accompanied by stock powers duly executed in blank by Pledgor,
have been delivered to Pledgee by Pledgor.

         In case Pledgor  shall  acquire,  by purchase,  stock  dividend,  stock
split,  distribution of capital or otherwise,  any additional  securities of any
class  of  securities  of  BTM or BTG  or  any  securities  exchangeable  for or
convertible  into any class of securities of BTM or BTG, Pledgor shall forthwith
pledge and deliver such  additional  or other  securities  to Pledgee under this
Pledge, accompanied by stock powers and/or assignments duly executed in blank by
or on behalf of Pledgor.

         3.  Representations,  Warranties  and  Covenants  of  Pledgor.  Pledgor
represents  and  warrants  that  (a) the  Pledged  Shares  have,  to the best of
Pledgor's  knowledge,  been  validly and  legally  issued and are fully paid and
nonassessable;  (b) Pledgor is the record and beneficial  owner of, and has good
and  marketable  title to, the Pledged  Shares,  subject to no  pledges,  liens,
charges, options, restrictions or other encumbrances known to Pledgor other than
(1)  the  lien  of  this  Pledge  and (2)  restrictions  imposed  by  applicable
securities laws; (c) Pledgor has the corporate power and authority to enter into
this  Pledge;  (d)  pursuant  to this  Pledge,  and so long as  Pledgee  retains
possession  of the  Collateral,  the  Pledgee  has and at all times  will have a
valid,  prior and perfected  security  interest in the  Collateral in accordance
with the terms  hereof;  (e) neither this Pledge,  nor the pledge of the Pledged
Shares hereunder, will violate any agreement or commitment to which Pledgor is a
party or by which  Pledgor or any of its property is bound or affected;  and (f)
this Pledge is the valid and binding  obligation of the Pledgor,  enforceable in
accordance  with its terms  except as  enforceability  is subject to  applicable
bankruptcy,  reorganization,  moratorium,  fraudulent conveyance, insolvency and
similar laws and to general  principles  of equity  (regardless  of whether such
enforceability is considered in a proceeding at law or in equity).

         3.1      General Covenants.  Pledgor covenants that it will:

                  (a) not sell,  assign,  exchange or  otherwise  dispose of any
Collateral or any interest therein;

                  (b) not  grant,  create or permit to exist any lien,  security
interest  or other  charge or  encumbrance  upon or with  respect  to any of the
Collateral,  other  than  the  security  interests  therein  created  hereby  or
specified in Section 3 above;

                  (c) not take or fail to take any action that would  impair the
value of any of the Collateral; and

                  (d) pay or cause to be paid  when due all  taxes,  assessments
and  governmental  charges,  if any,  levied or assumed or imposed  upon or with
respect to any of the Collateral.

         4.  Liquidation,  Recapitalization,  Etc. In case any  distribution  of
capital or stock  dividend  shall be made on or in respect of any of the Pledged
Shares, or any money or property

                                       -2-

<PAGE>



shall be distributed upon or with respect to any of the Pledged Shares, pursuant
to a  recapitalization  or  reclassification  of  the  capital  of BTM or BTG or
pursuant to a  reorganization  or  liquidation or dissolution of BTM or BTG, the
money or property so distributed  shall be delivered to Pledgee to be held by it
as part of the Pledged Shares and as security for the  Obligations.  All sums of
money and  property,  if any,  paid or  distributed  in respect  of the  Pledged
Shares, upon such a liquidation, dissolution,  reorganization,  recapitalization
or  reclassification,  which  are  received  by  Pledgor  shall,  until  paid or
delivered to Pledgee, be held in trust for Pledgee as part of the Collateral and
as security for the Obligations.

         5.  Dividends,  Voting,  Etc.,  Prior to  Maturity.  Unless and until a
Default shall have occurred and be continuing,  and until notice of such Default
has been given by Pledgee, Pledgor shall be entitled to receive all regular cash
dividends paid in respect of the Pledged Shares,  to vote the Pledged Shares and
to give consents,  waivers and  ratifications  in respect of the Pledged Shares;
provided,   however,  that  no  vote  shall  be  cast,  or  consent,  waiver  or
ratification  given or action taken that would be  inconsistent  with or violate
any provisions of any of the Notes or of this Pledge,.  Until the occurrence and
continuance  of a Default,  Pledgee  shall pay over to Pledgor,  forthwith  upon
receipt,  all  regular  cash  dividends  paid on the Pledged  Shares,  and shall
execute and deliver to Pledgor such proxies or other documents in writing as may
be necessary to enable Pledgor to exercise the foregoing rights. All such rights
of Pledgor to receive regular cash dividends on the Pledged Shares,  to vote and
give consents, waivers and ratifications shall cease forthwith in case a Default
shall have occurred and be continuing, without any notice (except as provided in
this Section 5) or demand by Pledgee to Pledgor.

         6. Remedies.  If a Default shall have occurred and be continuing for in
excess of ten (10) days without being waived or cured,  Pledgee shall thereafter
have the  following  rights and  remedies  (to the maximum  extent  permitted by
applicable  law) in addition to the rights and remedies of a secured party under
the Uniform  Commercial  Code of The  Commonwealth  of  Massachusetts,  all such
rights  and  remedies  being   cumulative,   not  exclusive,   and   enforceable
alternatively,  successively or concurrently,  at such time or times as Pledgee,
in its sole and absolute discretion, deems expedient:

                  (a) Pledgee  may vote any or all shares of the Pledged  Shares
(whether or not the same shall have been  transferred  into its name or the name
of its nominee or nominees) and give all consents,  waivers and ratifications in
respect of the Pledged  Shares and otherwise act with respect  thereto as though
it were the outright owner thereof (Pledgor hereby irrevocably  constituting and
appointing Pledgee the proxy and attorney-in-fact of Pledgor, with full power of
substitution, to do so);

                  (b)  Pledgee  may  demand,   sue  for,  collect  or  make  any
compromise or settlement  Pledgee  deems  suitable in respect of any  Collateral
held by it hereunder;

                  (c) Pledgee may sell, assign or otherwise  transfer any or all
of the Collateral,  for cash and/or credit and upon such terms, at such place or
places and at such time or times and to such Persons as Pledgee, in its sole and
absolute  discretion,  deems  expedient,  all without demand for  performance by
Pledgor or any notice or advertisement whatsoever except such as may be required
by Applicable Law; and

                                       -3-

<PAGE>




                  (d) Pledgee  may cause all or any part of the  Pledged  Shares
held by it to be  transferred  into  its  name or the  name  of its  nominee  or
nominees.

         If any of the  Collateral  is sold by Pledgee upon credit or for future
delivery,  Pledgee  shall not be liable for the failure of the  purchaser to pay
for the same and in such event Pledgee may resell such Collateral.

         All proceeds from each sale of, or other  realization  upon, all or any
part of the Collateral shall be applied or paid over as follows:

           (i)    first,  to the payment of all  reasonable  costs and  expenses
                  incurred in  connection  with such sale or other  realization,
                  including reasonable attorneys' fees;

          (ii)    second,  to  the  payment  of  the  Obligations  (with Pledgor
                  remaining liable for any deficiency); and

         (iii)    third,  the balance (if any) of such proceeds shall be paid to
                  Pledgor,  subject to any duty  imposed by law or  otherwise to
                  the holder of any subordinate  lien in the Collateral known to
                  Pledgee or subject to the  direction  of a court of  competent
                  jurisdiction.

         Pledgee  may buy any part or all of the  Collateral  at any public sale
and if any  part or all of the  Collateral  is of a type  customarily  sold in a
recognized  market or is of the type which is the subject of  widely-distributed
standard price quotations, Pledgee may, in its sole and absolute discretion, buy
at private sale and may make payments  therefor by any means including,  without
limitation, cancellation, in whole or in part, of any of the Obligations secured
thereby.  Pledgee  may,  in its sole and  absolute  discretion,  apply  the cash
proceeds  actually received from any sale or other disposition to the reasonable
expenses of retaking,  holding,  preparing  for sale,  selling and the like,  to
reasonable  attorneys  fees, and all legal  expenses,  travel and other expenses
which may be incurred by Pledgee in attempting to collect the  Obligations or to
enforce  this  Pledge,  the Purchase  Agreement  or any  instrument  executed or
required to be executed pursuant hereto or thereto or any instrument  evidencing
the  Obligations or in the prosecution or defense of any legal action related to
the subject  matter of this  Pledge,  the Purchase  Agreement or any  instrument
executed or required to be executed pursuant hereto or thereto or any Instrument
evidencing  the  Obligations,  and  then  to the  Obligations  with  respect  to
principal or interest,  or both, or other fees and expenses, in such proportions
as  Pledgee,  in its sole and  absolute  discretion,  shall  determine;  and any
surplus shall be paid to Pledgor.

         Pledgor  recognizes  that Pledgee may be unable to effect a public sale
of the  Pledged  Shares or other  Collateral  by reason of certain  prohibitions
contained in the  Securities  Act of 1933,  as amended,  or in other  applicable
laws, regulations or agreements to which such Pledged Shares or other Collateral
may be  subject  but may be  compelled  to resort to one or more  private  sales
thereof to a restricted  group of purchasers  who will be obligated to represent
and agree among other things, to acquire such Pledged Shares or other Collateral
for their own account,  for investment,  and not with a view to the distribution
or resale thereof. Pledgor agrees that any

                                       -4-

<PAGE>



such private sales may be at prices and other terms less favorable to the seller
than if sold at public  sales and agrees  that any such  private  sales shall be
deemed to have been made in a commercially  reasonable manner.  Pledgee shall be
under no obligation to delay a sale of any of the Pledged  Shares for the period
of time  necessary  to permit the issuer of such  securities  to  register  such
securities  for public sale under the said  Securities  Act or other  applicable
law, even if the issuer would agree to do so.

         7. Marshalling. Pledgee shall not be required to marshal any present or
future security for (including without limitation this Pledge and the Collateral
pledged  hereunder),  or guaranties  of, the  Obligations  or any of them, or to
resort to such security or guaranties in any  particular  order;  and all of the
rights  hereunder  and in  respect  of such  security  and  guaranties  shall be
cumulative and in addition to all other rights,  however existing or arising. To
the maximum extent  permitted by applicable  law,  Pledgor hereby agrees that it
will not invoke any law relating to the  marshalling  of  collateral  that might
cause delay in or impede the  enforcement of Pledgee's  rights under this Pledge
or any instrument  executed or required to be executed  pursuant hereto or under
any other instrument evidencing any of the Obligations or under which any of the
Obligations  is  outstanding  or by which any of the  Obligations  is secured or
guaranteed,  and, to the maximum  extent  permitted by applicable  law,  Pledgor
hereby irrevocably waives the benefits of all such laws.

         8.  Pledgor's  Obligations  Not Affected.  The  obligations  of Pledgor
hereunder shall remain in full force and effect without regard to, and shall not
be  impaired  by (a)  any  bankruptcy,  insolvency,  arrangement,  readjustment,
composition  or the like of Pledgor;  (b) any  exercise or  nonexercise,  or any
waiver, by Pledgee of any right,  remedy, power or privilege under or in respect
of any of the Obligations or any security therefor (including this Pledge);  (c)
any amendment to or modification of any of the Obligations; (d) any amendment to
or  modification  of any  instrument  (other  than this  Pledge)  evidencing  or
securing or guaranteeing any of the Obligations; or (e) the taking of additional
security  for,  or any  guaranty  of, any of the  Obligations  or the release or
discharge or termination of any security or guaranty for any of the Obligations;
whether or not Pledgor shall have notice or knowledge of any of the foregoing.

         9.   Termination.   Upon  payment  and   performance  in  full  of  the
Obligations,  this Pledge shall terminate,  and Pledgor shall be entitled to the
return of such of the  Collateral in the possession or control of Pledgee as has
not  theretofore  been disposed of pursuant to the provisions  hereof,  together
with any  moneys  and other  property  of  Pledgor  at the time held by  Pledgee
hereunder.

         10. Further Assurances. Pledgor will do all such acts, and will furnish
to Pledgee all such financing statements, certificates, legal opinions and other
documents and will obtain all such governmental  consents and approvals and will
do or cause to be done all such other things,  including without  limitation the
execution and delivery of further  agreements  and  instruments,  as Pledgee may
reasonably request from time to time in order to give full effect to this Pledge
and to secure the rights of Pledgee hereunder.

         11.  Successors and Assigns.  This Pledge shall be binding upon Pledgor
and its successors and assigns and shall inure to the benefit of Pledgee and its
successors and assigns.

                                       -5-

<PAGE>



Pledgor's  successors  and  assigns  shall  include,  without  limitation,   any
receiver, trustee or debtor-in-possession of or for Pledgor.

         12.  No  Waiver,  Etc.  No act,  failure  or  delay  by  Pledgee  shall
constitute a waiver of its rights and remedies hereunder or otherwise. No single
or partial  waiver by the Pledgee of any default or right or remedy which it may
have shall operate a waiver of any other default, right or remedy or of the same
default,   right  or  remedy  on  a  future  occasion.   Pledgor  hereby  waives
presentment,  notice of dishonor and protest of all instruments,  included in or
evidencing  any of the  Obligations  or the  Collateral,  and any and all  other
notices and demands whatsoever (except as expressly provided herein).

         13. Notices.  Any notice,  request or other  communication  required or
desired to be served,  given or delivered  under this Pledge shall be in writing
and shall be deemed to have been validly  served,  given or  delivered  five (5)
days after  deposit in the United States  mails,  registered or certified  mail,
with  proper  postage  prepaid  and  addressed  to the party to be  notified  as
follows:


If to Pledgor:                             c/o GreenMan Technologies, Inc.
                                           7 Kimball Lane, Building A
                                           Lynnfield, Massachusetts  01940
                                           Attention:  Maurice E. Needham
                                           Telephone:  (617) 224-2411
                                           Telecopy:   (617) 224-0014

With a copy to:                            Sullivan & Worcester LLP
                                           One Post Office Square
                                           Boston, Massachusetts  02109
                                           Attention:  John A. Piccione, Esq.
                                           Telephone:  (617) 338-2800
                                           Telecopy:   (617) 338-2880

If to Pledgee:                             c/o Browning Ferris Industries, Inc.
                                           757 North Eldridge
                                           Houston, Texas  77079
                                           Attention:  Secretary
                                           Telephone: (281) 870-8100
                                           Telecopy: (281) 870-7825

With a copy to:                            Browning Ferris Industries, Inc.
                                           757 North Eldridge
                                           Houston, Texas 77079
                                           Attention:  John A. Hale, Jr., Esq.
                                           Telephone:  (281) 870-7138
                                           Telecopy:    (281) 870-7825

or to such other address as either party may  hereafter  designate for itself by
written notice to the other party in the manner herein prescribed.

                                       -6-

<PAGE>


         14. Paragraph  Headings.  The paragraph headings in this Pledge are for
convenience   of  reference   only,   and  shall  not  affect  in  any  way  the
interpretation of any of the provisions of this Pledge.

         15. Counterparts. This Pledge may be executed in separate counterparts,
each of  which  shall  be an  original  and all of which  taken  together  shall
constitute one and the same instrument.

         16.  Applicable  Law. This Pledge shall be governed by and construed in
accordance  with the internal laws (as  distinguished  from the conflicts of law
provisions)  of The  Commonwealth  of  Massachusetts.  Whenever  possible,  each
provision of this Pledge shall be  interpreted in such manner as to be effective
and valid under  applicable  law,  but if any  provision of this Pledge shall be
held to be prohibited or invalid under  applicable  law, such provision shall be
ineffective  only to the  extent  of such  prohibition  or  invalidity,  without
invalidating the remainder of such provision or the remaining provisions of this
Pledge.

         IN WITNESS  WHEREOF,  Pledgor and Pledgee have  executed on the day and
year first above written.


                                                 GREENMAN ACQUISITION CORP.



                                                 By: /s/ Maurice E. Needham
                                                     Title:  President
                                                 BROWNING-FERRIS INDUSTRIES OF
                                                  MINNESOTA, INC.



                                                 By: /s/ Gerald K.  Burger
                                                     Title:  Vice President
                                                 BROWNING-FERRIS INDUSTRIES OF
                                                  GEORGIA, INC.



                                                 By: /s/ Gerald K.  Burger
                                                     Title:  Vice President




                                       -7-

                               GUARANTY AGREEMENT

         This GUARANTY  AGREEMENT (this  "Guaranty") is made and entered into as
of June 30, 1997 by GreenMan  Technologies,  Inc., a Delaware  corporation  (the
"Guarantor"),  in favor of  Browning-Ferris  Industries  of  Minnesota,  Inc., a
Minnesota corporation ("BFIM"), and Browning-Ferris Industries of Georgia, Inc.,
a Georgia corporation ("BFIG").

                                    RECITALS

         A. Pursuant to a Purchase and Sale Agreement  dated as of June 30, 1997
(the "Purchase Agreement") by and among Guarantor, GreenMan Acquisition Corp., a
Delaware corporation ("GAC"), Browning-Ferris Industries, Inc. ("BFI"), BFIM and
BFIG (collectively, BFI, BFIM and BFIG are referred to herein as the "Sellers"),
GAC has  acquired  all the  issued  and  outstanding  capital  stock of BFI Tire
Recyclers of  Minnesota,  Inc., a Minnesota  corporation  ("BTM"),  and BFI Tire
Recyclers of Georgia, Inc., a Georgia corporation ("BTG").

         B. Pursuant to the Purchase  Agreement  and in partial  payment for the
stock of BTM and BTG, GAC has delivered to BFIM and BFIG the Note (as defined in
the Purchase  Agreement)  and is to deliver the Final  Working  Capital Note (as
defined in the Purchase Agreement and, together with the Note, the "Notes").

         C. The Guarantor is the owner of all the issued and outstanding capital
stock of GAC.

         D. It is a condition  precedent to the  obligation  of Sellers to enter
into the  Purchase  Agreement  that  the  Guarantor  execute  and  deliver  this
Guaranty.

         E.  The  Guarantor  hereby  acknowledges  that in  view  of its  equity
interest  in  GAC,  the  financial  accommodations  from  BFIM  and  BFIG to GAC
contemplated by the Notes will inure to the benefit of the Guarantor.

         NOW THEREFORE,  in consideration of the foregoing premises and in order
to induce the Sellers to enter into the Purchase Agreement, the Guarantor hereby
agrees as follows:

         1.  Guaranty.  The Guarantor  unconditionally  guarantees  the full and
prompt  payment and  performance  when due of all of GAC's  payment  obligations
under the Notes (the "Guaranteed  Obligations").  In the event that GAC defaults
in the payment or performance  when due, of any of the  Guaranteed  Obligations,
the  Guarantor  will  pay,  on  demand,  the  full  amount  of  such  Guaranteed
Obligations in immediately  available  funds at the place provided in the Notes.
The Guarantor further agrees to pay all reasonable costs and expenses including,
without limitation, all court costs and reasonable attorneys' fees and expenses,
paid  or  incurred  by BFI in  endeavoring  to  collect  all or any  part of the
Guaranteed Obligations from, or in prosecuting any action against, the Guarantor
or any other  guarantor of all or any part of the Guaranteed  Obligations.  This
Guaranty  is a  guarantee  of payment and  performance  and not a  guarantee  of
collection.

         2.  Guaranty  Absolute.  The Guarantor  hereby  agrees that,  except as
hereinafter   provided,   its   obligations   under  this   Guaranty   shall  be
unconditional,  irrespective  of  (a)  the  validity  or  enforceability  of the
Guaranteed Obligations or of any promissory note or other

                                                        

<PAGE>



document  evidencing all or any part of the Guaranteed  Obligations,  including,
without  limitation,  the Notes,  (b) the  absence of any attempt to collect the
Guaranteed  Obligations  from GAC or any  other  guarantor  or other  action  to
enforce the same,  (c) the waiver or consent by BFIM or BFIG with respect to any
provision of any instrument evidencing the Guaranteed  Obligations,  or any part
thereof,  any  other  guaranty  of the  Guaranteed  Obligations,  or  any  other
agreement now or hereafter executed by or on behalf of GAC and delivered to BFIM
or BFIG,  (d) any  surrender,  release or exchange of any security or collateral
for the Guaranteed Obligations, (e) failure by BFIM or BFIG to take any steps to
perfect and maintain its security interest in, or to preserve its rights to, any
security  or  collateral  for  the  Guaranteed  Obligations,  or (g)  any  other
circumstance which might otherwise  constitute a legal or equitable discharge or
defense of a guarantor or of GAC.

         3. Waiver. The Guarantor hereby waives diligence,  presentment,  demand
of  payment,  filing of  claims  with a court in the  event of  receivership  or
bankruptcy of GAC, protest or notice with respect to the Guaranteed  Obligations
and all  demands  whatsoever,  and  covenants  that  this  Guaranty  will not be
discharged,  except by complete performance of the obligations contained herein.
Upon  default  by  GAC  in  the  payment  and   performance  of  the  Guaranteed
Obligations,  BFIM or BFIG may proceed directly and at once, without notice, and
notwithstanding  any stay,  enjoinment or other  prevention of  acceleration  or
collection  of the  Guaranteed  Obligations  as against GAC or any other  party,
against the  Guarantor  to collect and recover the full amount or any portion of
Guaranteed Obligations without first proceeding against GAC or any other person,
firm,  guarantor or  corporation,  or against any security or collateral for the
Guaranteed  Obligations.  BFIM  and  BFIG  shall  have  the  exclusive  right to
determine the  application of payments and credits,  if any, from the Guarantor,
GAC or from any other person, firm or corporation,  on account of the Guaranteed
Obligations or of any other liability of the Guarantor to BFIM and BFIG.

         4. Amendments, Extensions,  Modifications,  Partial Payments, Releases,
Etc. BFIM and BFIG are hereby authorized,  without notice, consent or demand and
without  affecting the liability of the  Guarantor  hereunder,  to, from time to
time, (a) renew, extend, accelerate or otherwise change the time for payment of,
or other terms relating to, the  Guaranteed  Obligations,  or otherwise  modify,
amend or change the terms of any promissory  note (including the Notes) or other
agreement,  document or instrument now or hereafter executed by GAC or any other
guarantor of the  Guaranteed  Obligations  and  delivered to BFIM and BFIG;  (b)
accept  partial  payments  on the  Guaranteed  Obligations;  (c)  take  and hold
security or collateral for the payment of the Guaranteed  Obligations guaranteed
hereby,  or for the  payment of this  Guaranty,  or for the payment of any other
guaranties  of the  Guaranteed  Obligations  or other  liabilities  of GAC,  and
exchange,  enforce, waive and release any such security or collateral; (d) apply
such security or collateral and direct the order or manner of sale thereof as in
its discretion it may determine; and (e) settle, release, compromise, collect or
otherwise  liquidate  any  or  all  of the  Guaranteed  Obligations,  any  other
guarantor of the Guaranteed  Obligations and any security or collateral therefor
in any manner,  in each case without  affecting or impairing the  obligations of
the Guarantor hereunder.

         5. No Guaranteed  Obligation to Marshal  Assets;  Reversal of Payments.
The  Guarantor  consents  and  agrees  that  BFIM  and  BFIG  shall  be under no
obligation to marshal any

                                       -2-

<PAGE>



assets in favor of the  Guarantor  or against or in payment of any or all of the
Guaranteed  Obligations.  The Guarantor  further agrees that, to the extent that
GAC makes a  payment  or  payments  to BFIM and BFIG  receive  any  proceeds  of
collateral,  which  payment or  payments or any part  thereof  are  subsequently
invalidated,  declared  to be  fraudulent  or  preferential,  set  aside  and/or
required to be repaid to GAC, its estate, trustee,  receiver or any other party,
including, without limitation, the Guarantor, under any bankruptcy law, state or
federal law, common law or equitable  cause,  then to the extent of such payment
or repayment,  the Guaranteed  Obligations or part thereof which have been paid,
reduced or satisfied by such amount shall be  reinstated  and  continued in full
force and effect as of the date such initial payment,  reduction or satisfaction
occurred.

         6. Subrogation;  Subordination.  The Guarantor hereby waives all rights
of subrogation  to the claims of BFIM and BFIG against GAC and all  contractual,
statutory or common law rights of reimbursement,  contribution or indemnity from
GAC or any other person with respect to the Guaranteed Obligations

         7.  Waivers by BFIM and BFIG.  No delay on the part of BFIM and BFIG in
the exercise of any right or remedy shall  operate as a waiver  thereof,  and no
single  or  partial  exercise  by BFIM and BFIG of any  right  or  remedy  shall
preclude any further exercise  thereof;  nor shall any modification or waiver of
any of the provisions of this Guaranty be binding upon BFIM and BFIG,  except as
expressly  set forth in a writing  duly signed and  delivered on BFIM and BFIG's
behalf  by an  authorized  officer  or agent of BFIM and BFIG.  BFIM and  BFIG's
failure at any time or times  hereafter to require strict  performance by GAC or
the  Guarantor  of  the  Guaranteed   Obligations  or  any  of  the  provisions,
warranties,  terms and conditions  contained in any promissory note  (including,
without  limitation,  the  Notes),  security  agreement,   agreement,  guaranty,
instrument or document now or at any time or times hereafter  executed by GAC or
the Guarantor and delivered to BFIM and BFIG shall not waive, affect or diminish
any  right of BFIM and BFIG at any time or  times  hereafter  to  demand  strict
performance  thereof  and such right  shall not be deemed to have been waived by
any act or knowledge of BFIM and BFIG,  or its  respective  agents,  officers or
employees, unless such waiver is contained in an instrument in writing signed by
an officer or agent of BFIM and BFIG and directed to GAC specifying such waiver.
No waiver by BFIM and BFIG of any default shall operate as a waiver of any other
default or the same default on a future occasion, and no action by BFIM and BFIG
permitted  hereunder shall in any way affect or impair BFIM and BFIG's rights or
the obligations of the Guarantor  under this Guaranty.  Any  determination  by a
court of competent  jurisdiction of the amount of any principal  and/or interest
owing by GAC to BFIM and BFIG shall be  conclusive  and binding on the Guarantor
irrespective of whether the Guarantor was a party to the suit or action in which
such determination was made.

         8. Continuing  Guaranty.  The Guarantor agrees that this Guaranty shall
continue in full force and effect and may not be terminated or otherwise revoked
until the  Guaranteed  Obligations  have been fully paid and  discharged and all
financing arrangements between GAC and BFIM and BFIG have been terminated.

         9.  Successors  and Assigns.  This  Guaranty  shall be binding upon the
Guarantor and upon its  successors and assigns and shall inure to the benefit of
BFIM's and BFIG's successors

                                       -3-

<PAGE>


and assigns;  all references  herein to GAC and to the Guarantor shall be deemed
to include their  respective  successors and assigns.  GAC's and the Guarantor's
successors and assigns shall include, without limitation,  any receiver, trustee
or debtor-in-possession of or for GAC or the Guarantor, as the case may be.

         10.  Governing Law. This Guaranty  shall be interpreted  and the rights
and  liabilities of the guarantor and the lender  determined in accordance  with
the  internal  laws  (as  opposed  to the  conflict  of law  provisions)  of The
Commonwealth of Massachusetts.

         11.  Severability.  Wherever  possible each  provision of this Guaranty
shall  be  interpreted  in  such  manner  as to be  effective  and  valid  under
applicable  law, but if any provision of this Guaranty shall be prohibited by or
invalid under such law, such  provision  shall be  ineffective  to the extent of
such  prohibition  or  invalidity  without  invalidating  the  remainder of such
provision or the remaining provisions of this Guaranty.

         12.  Section  Headings.  The section  headings in this Guaranty are for
convenience   of  reference   only,   and  shall  not  affect  in  any  way  the
interpretation of any of the provisions of this Guaranty.

         13.  Execution in  Counterparts.  This  Guaranty may be executed in any
number of counterparts and by different parties hereto in separate counterparts,
each of which  when so  executed  shall be deemed to be an  original  and all of
which taken together shall constitute one and the same agreement.

         IN  WITNESS  WHEREOF,  this  Guaranty  has been  duly  executed  by the
Guarantor as of the date first above written.

                                            GREENMAN TECHNOLOGIES, INC.



                                            By: /s/ Maurice E. Needham
                                                Title:  Chief Executive Officer
Acknowledged and agreed to, 
this 30th day of June, 1997.

BROWNING-FERRIS INDUSTRIES OF               BROWNING-FERRIS INDUSTRIES OF
MINNESOTA, INC.                             GEORGIA, INC.



By: /s/ Gerald K.  Burger                   By: /s/ Gerald K.  Burger
    Title:  Vice President                      Title:  Vice President



                                       -4-


                 GREENMAN TECHNOLOGIES COMPLETES ACQUISITION OF
                          BFI TIRE RECYCLING OPERATIONS


         LYNNFIELD, Mass., July 7, 1997 -- GreenMan Technologies,  Inc. (NASDAQ:
GMTI,  BSE: GMY)  announced  today that it has completed the  acquisition of BFI
Tire  Recyclers  of  Minnesota,  Inc.  (Savage,  MN) and BFI Tire  Recyclers  of
Georgia, Inc. (Jackson,  GA) from Browning-Ferris  Industries of Houston,  Texas
("BFI").  These  operations  bring  to  GreenMan  approximately  $8  million  in
profitable annual revenues and the addition of high-volume scrap tire collection
and processing capabilities.

         Under  the  terms  of  the   Agreement,   GreenMan   paid  a  total  of
approximately  $5.4 million for all of the  outstanding  common stock of the two
BFI tire recycling  subsidiaries;  while BFI retained  substantially  all of the
fixed  liabilities  of the two  subsidiaries.  This purchase price is subject to
reduction,  within 45 days,  based upon completion of a final  determination  of
accounts  receivable  and  inventory as of June 30, 1997.  GreenMan has paid BFI
$650,000 in cash,  and the balance is in the form of a 90-day note payable.  The
Company  anticipates   refinancing  the  note  through  traditional  asset-based
financing, as this is an asset-rich transaction.

         As new GreenMan subsidiaries, these businesses will operate as GreenMan
Technologies of Minnesota,  Inc. and GreenMan Technologies of Georgia, Inc.; and
will continue to provide the same level of quality and service that customers of
BFI Tire Recyclers of Minnesota and Georgia have come to expect. While servicing
existing  and new  customers,  these  operations  will  also  expand to meet the
internal raw- material needs of GreenMan's growing operations.

         Maury  Needham,  GMTI's  CEO,  stated:  "This  acquisition  establishes
GreenMan as a major player in the tire recycling  industry in the United States.
The operations  represent two solid,  well-established  businesses with seasoned
management  teams,  signifying  a  reliable  and cost  effective  source  of raw
material for the Company's operations."

         Joseph Levangie,  GMTI's CFO,  stated:  "In addition to nearly tripling
GreenMan's  current  revenues,  this  acquisition  eliminates  our "Take or Pay"
obligation under the  pre-existing  agreement with BFI Tire Recyclers of Georgia
- --  reducing  costs  by  $24.0  million  over  the  twenty-year   term  of  that
arrangement."




<PAGE>


PAGE 2.   PRESS RELEASE:    GREENMAN TECHNOLOGIES COMPLETES ACQUISITION OF BFI
                            TIRE RECYCLING OPERATIONS


         GreenMan Technologies,  Inc. manufactures and markets  "environmentally
friendly" rubber and plastic-based  products for sale to consumer and industrial
end-user  markets.  GreenMan's  products are made using the Company's  GEM-Stock
materials,  made from  recycled  plastics  and rubber  from  tires.  Through its
DuraWear  subsidiary,   the  Company  manufactures  and  markets  wear-resistant
ceramic,  polymer  composite and alloy steel products for bulk material handling
systems.  Through its tire recycling division comprised of GreenMan Technologies
of  Minnesota,  Inc. and GreenMan  Technologies  of Georgia,  Inc.,  the Company
provides  scrap tire  collection  services  and  markets  tire chips to the Tire
Derived Fuel ("TDF") and crumb rubber markets.

         With the  exception  of the  historical  information  contained in this
release,  the matters described herein contain  forward-looking  statements that
involve risk and  uncertainties  that may  individually  or mutually  impact the
matters  herein  described,  including  but not  limited to product  acceptance,
economic, competitive, governmental, results of litigation, technological and/or
other factors, which are outside the control of the Company.

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