GREENMAN TECHNOLOGIES INC
S-3, 1997-05-22
PLASTICS PRODUCTS, NEC
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         As filed with the Securities and Exchange Commission on May 22, 1997

                                                Registration No. 333-________


                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                             -----------------------

                                    FORM S-3
             REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
                             -----------------------

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



          Delaware                         1-13776              71-0724248
 (State or other jurisdiction            (Commission            (IRS Employer
       of incorporation)                  File Number)        Identification
                                                                   Number)

                           7 Kimball Lane, Building A
                         Lynnfield, Massachusetts 01940
                                 (617) 224-2411
    (Address, including zip code, and telephone number, including area code,
                  of registrant's principal executive offices)


                               Maurice E. Needham
                             Chief Executive Officer
                           GreenMan Technologies, Inc.
                           7 Kimball Lane, Building A
                         Lynnfield, Massachusetts 01940
                                 (617) 224-2411
              (Name, address, including zip code, telephone number,
                   including area code, of agent for service)


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

         Approximate  date of commencement of proposed sale to the public:  From
time  to  time or at one  time  after  the  effective  date of the  Registration
Statement as determined by market conditions.
         If the only securities  being registered on this Form are being offered
pursuant to dividend or interest  reinvestment plans, please check the following
box. |_|
         If any of the  securities  being  registered  on  this  Form  are to be
offered  on a  delayed  or  continuous  basis  pursuant  to Rule 415  under  the
Securities Act of 1933,  other than  securities  offered only in connection with
dividend or interest reinvestment plans, check the following box. |X|
         If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the  Securities  Act,  check the following box and
list the Securities Act registration  statement number of the earlier  effective
registration statement for the same offering. |_| _____________

                                                        

<PAGE>



         If this  Form is a  post-effective  amendment  filed  pursuant  to Rule
462(c) under the Securities Act, check the following box and list the Securities
Act  registration   statement  number  of  the  earlier  effective  registration
statement for the same offering. |_| _____________
         If delivery of the  prospectus  is expected to be made pursuant to Rule
434, please check the following
box.    |_|
                             -----------------------
<TABLE>
<CAPTION>

                         CALCULATION OF REGISTRATION FEE
                                                                                                Proposed               Amount of
  Title of Each Class of Securities to            Amount to                                      Maximum             Registration
              be Registered                     be Registered          Price to Public       Offering Price             Fee(3)
- --------------------------------------          -------------          ---------------       --------------          ------------
<S>                                             <C>                        <C>               <C>                       <C>

Common Stock, par value $.01 per                  2,577,890                 $ .92              $2,371,658.80            $718.68
share(1)(2)
<FN>

(1)  The Common Stock being registered consists of (i) up to 2,123,051 shares issuable upon conversion of the Company's  Convertible
     Notes due October 1998 (the "Notes");  (ii) 300,000 shares underlying common stock purchase warrants (the "Investor  Warrants")
     issued to the  purchasers of the Notes in connection  with the sale of the Notes;  and (iii) 154,839 shares  underlying  common
     stock purchase  warrants issued to the placement agent in connection with the sale of the Notes and Investor  Warrants,  all as
     described in the "SELLING STOCKHOLDERS" and "PLAN OF DISTRIBUTION" sections of the Prospectus.

(2)  Pursuant to Rule 416, there are also registered hereby such additional  indeterminate  number of shares of such Common Stock as
     may become issuable in accordance with the terms of the Notes and Warrants referred to above.

(3)  The registration  fee is calculated  pursuant to Rule 457(c) of the Securities Act of 1933 by taking the average of the closing
     bid and asked prices of the  registrant's  Common  Stock,  $.01 par value per share,  on May 20, 1997 as reported on the NASDAQ
     SmallCap Market.
</FN>
</TABLE>

         The Registrant hereby amends this  Registration  Statement on such date
or dates as may be necessary to delay its  effective  date until the  Registrant
shall file a further amendment which specifically  states that this Registration
Statement shall  thereafter  become effective in accordance with Section 8(a) of
the Securities  Act of 1933 or until this  Registration  Statement  shall become
effective on such date as the Commission,  acting pursuant to said Section 8(a),
may determine.



                                      (ii)

<PAGE>

                              Subject to Completion
                    Preliminary Prospectus dated May 22, 1997
PROSPECTUS

                           GreenMan Technologies, Inc.
                        2,577,890 Shares of Common Stock

         This Prospectus  relates to 2,577,890 shares of Common Stock,  $.01 par
value per share ("Common Stock" or the "Shares"), of GreenMan Technologies, Inc.
(the  "Company",  the  "Registrant"  or  "GreenMan")  consisting  of  (i)  up to
2,123,051 Shares issuable upon conversion of the Company's Convertible Notes due
October 1998 (the  "Notes");  (ii) 300,000  Shares  issuable by the Company upon
exercise of common stock purchase  warrants (the "Investor  Warrants") issued to
the purchasers of the Notes in connection with the sale of the Notes;  and (iii)
154,839  Shares  issuable by the Company upon exercise of common stock  purchase
warrants issued to the placement agent (the "Broker Warrants" and, together with
the Investor Warrants,  the "Warrants") in connection with the sale of the Notes
and the  Investor  Warrants.  There  are  also  registered  hereby  a  currently
indeterminate  number of shares of Common  Stock  that may  become  issuable  in
accordance  with the  terms of the  Notes  and the  Warrants.  Each  Warrant  is
exercisable  for one share of Common  Stock.  A total of  150,000  Warrants  are
exercisable  at a price of $1.0625 per Warrant,  a total of 60,000  Warrants are
exercisable at $1.00 per Warrant and a total of 244,839 Warrants are exercisable
at a price  of  $.96875  per  Warrant.  To the  extent  that  the  Warrants  are
exercised,  the Company will receive proceeds equal to the exercise price of the
Warrants.

         All Shares to be  registered  hereby  are to be offered by the  selling
stockholders  listed herein (the "Selling  Stockholders"),  and the Company will
receive  no  proceeds  from the  resale by the  Selling  Stockholders  of Shares
issuable upon  conversion of the Notes or exercise of the Warrants.  The Company
has agreed to  indemnify  certain of the Selling  Stockholders  against  certain
liabilities,  including certain liabilities under the Securities Act of 1933, as
amended  (the  "Act"),   or  to  contribute  to  payments   which  such  Selling
Stockholders may be required to make in respect thereof.

         The  Company's  Common Stock is listed on the National  Association  of
Securities  Dealers  Automated  Quotation  System  ("NASDAQ")  and traded on the
NASDAQ  SmallCap Market under the symbol "GMTI" and on the Boston Stock Exchange
under the symbol  "GMY".  The last reported bid price of the Common Stock on the
NASDAQ SmallCap Market on May 20, 1997 was $.84375.

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

          THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE
           SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES
               COMMISSION NOR HAS THE SECURITIES AND EXCHANGE COM-
                MISSION OR ANY STATE SECURITIES COMMISSION PASSED
                      UPON THE ACCURACY OR ADEQUACY OF THIS
                      PROSPECTUS. ANY REPRESENTATION TO THE
                         CONTRARY IS A CRIMINAL OFFENSE.
                             ----------------------

         AN INVESTMENT IN THE SECURITIES OFFERED HEREBY INVOLVES A HIGH
           DEGREE OF RISK. SEE "RISK FACTORS" AT PAGES 5 THROUGH 13.
                             ----------------------

         It is anticipated that usual and customary  brokerage fees will be paid
by the Selling  Stockholders on the sale of the Common Stock registered  hereby.
The  Company  will  pay the  other  expenses  of this  offering.  See  "PLAN  OF
DISTRIBUTION".  The offer of  2,577,890  shares of Common  Stock by the  Selling
Stockholders as described in this Prospectus is referred to as the "Offering".
                             ----------------------

                  The date of this Prospectus is ______, 1997.

<PAGE>

         No person has been  authorized to give any  information  or to make any
representations  other than those contained or incorporated by reference in this
Prospectus in connection  with the offer  contained in this  Prospectus  and, if
given or made, such  information or  representations  must not be relied upon as
having  been  authorized  by the  Company  or  the  Selling  Stockholders.  This
Prospectus  does not constitute an offer to sell or  solicitation of an offer to
buy securities in any  jurisdiction to any person to whom it is unlawful to make
such offer or solicitation. Neither the delivery of this Prospectus nor any sale
made hereunder shall, under any circumstances,  create an implication that there
has been no change in the  affairs of the  Company  since the date hereof or the
information contained or incorporated by reference herein is correct at any time
subsequent to the date hereof.


                              AVAILABLE INFORMATION

         The  Company  is  subject  to  the  informational  requirements  of the
Securities  Exchange  Act of 1934,  as amended  (the  "Exchange  Act"),  and, in
accordance therewith, files reports, proxy statements and other information with
the Securities and Exchange  Commission  (the  "Commission").  The  Registration
Statement,  the exhibits and  schedules  forming a part thereof and the reports,
proxy statements and other  information filed by the Company with the Commission
can be  inspected  and  copies  obtained  at  the  public  reference  facilities
maintained by the  Commission at Judiciary  Plaza,  Room 1024, 450 Fifth Street,
N.W.,  Washington,  D.C.  20549,  and at the following  regional  offices of the
Commission:  Chicago Regional Office,  Citicorp Center, 500 West Madison Street,
Suite 1400, Chicago,  Illinois  60661-2511;  and New York Regional Office, Seven
World  Trade  Center,  Suite  1300,  New York,  New York  10048.  Copies of such
material can be obtained at prescribed rates from the Public  Reference  Section
of the Commission at its principal office at 450 Fifth Street, N.W., Washington,
D.C. 20549.  Such materials may also be accessed  electronically by means of the
Commission's home page at http://www.sec.gov. This prospectus, which constitutes
part of a Registration  Statement filed by the Company with the Commission under
the Act omits certain  information  contained in the  Registration  Statement in
accordance with the rules and regulations of the Commission. Reference is hereby
made to the Registration Statement and the Exhibits relating thereto for further
information with respect to the Company and the Securities  offered hereby.  Any
statements  contained  herein  concerning  provisions  of any  documents are not
necessarily  complete,  and, in each instance,  reference is made to the copy of
such  document  filed as an Exhibit to the  Registration  Statement or otherwise
filed with the  Commission.  Each such statement is qualified in its entirety by
such reference.


                 INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

         The  following  documents,  which have been  filed with the  Commission
pursuant to the Exchange Act, are hereby  incorporated  in this  Prospectus  and
specifically made a part hereof by reference: (i) the Company's Annual Report on
Form 10-KSB for the fiscal year ended May 31, 1996; (ii) the Company's Quarterly
Reports on Form 10-QSB for the quarters ended August 31, 1996, November 30, 1996
and February 28, 1997; (iii) the Company's  Current Report on Form 8-K dated May
5, 1997 and (iv) the description of the Company's  Common Stock contained in the
Registration  Statement on Form SB-2 File No. 33-86138 filed with the Commission
on November 9, 1994, as amended.  All documents filed by the Company pursuant to
Section 13(a),  13(c), 14 or 15(d) of the Exchange Act subsequent to the date of
this Prospectus and prior to the termination of the Offering of the Shares shall
be deemed to be  incorporated by reference into this Prospectus and to be a part
hereof from the respective dates of filing of such documents.

         Any statement contained herein or in a document  incorporated or deemed
to be  incorporated  herein  by  reference  shall be deemed  to be  modified  or
superseded for purposes of this Prospectus to the extent that

                                       -2-

<PAGE>



a statement contained herein (or in the applicable Prospectus Supplement), or in
any  subsequently  filed  document that also is or is deemed to be  incorporated
herein by reference,  modifies or supersedes such statement.  Any such statement
so  modified  or  superseded  shall  not be  deemed,  except as so  modified  or
superseded, to constitute a part of this Prospectus.

         The Company hereby  undertakes to provide without charge to each person
to whom this  Prospectus is delivered,  upon the written or oral request of such
person, a copy of any and all of the information  that has been  incorporated by
reference  in this  Prospectus  (excluding  exhibits  unless such  exhibits  are
specifically incorporated by reference into the information that this Prospectus
incorporates).  Requests  for such  copies  should be made to the Company at its
principal   executive   offices,   7  Kimball  Lane,   Building  A,   Lynnfield,
Massachusetts 01940, Attention: Charles Coppa, telephone (617) 224-2411.



                                       -3-

<PAGE>


                               PROSPECTUS SUMMARY
<TABLE>
<CAPTION>
         The following  summary  information is qualified in its entirety by the
more detailed information appearing elsewhere in this Prospectus or incorporated
herein by reference and the financial  statements which are incorporated  herein
by reference.

<S>                                        <C>   

THE COMPANY..............................   GreenMan Technologies, Inc. was formed primarily to develop,
                                            manufacture and sell "environmentally friendly" plastic and
                                            thermoplastic rubber parts and products that are manufactured
                                            using recycled materials and/or are themselves partially or wholly
                                            recyclable.  The Company has two business segments, a molding
                                            operation located in Malvern, Arkansas and a recycling operation,
                                            located in Jackson, Georgia.  The Company also owns all of the
                                            outstanding common stock of DuraWear Corporation
                                            "DuraWear"), an Alabama corporation located in Birmingham,
                                            Alabama, which  manufactures, installs and markets high quality
                                            ceramic, polymer composite, and alloy steel materials utilized in
                                            such industries as paper and pulp, mining, coal handling and grain
                                            storage and transportation.  On April 18, 1997, the Company
                                            announced the signing of a letter of intent with Browning Ferris
                                            Industries, Inc. ("BFI") to purchase all of the issued and
                                            outstanding stock of BFI's tire recycling subsidiaries in Jackson,
                                            Georgia and Savage, Minnesota and certain tire processing related
                                            assets at BFI's Azusa, California facility.  See "MATERIAL
                                            DEVELOPMENTS."

RISK FACTORS.............................   The Offering involves substantial risk.  See "RISK FACTORS".

SECURITIES OFFERED.......................   2,577,890 shares of Common Stock, $.01 par value per share.

OFFERING PRICE...........................   All or part of the Shares offered hereby may be sold from time to
                                            time in amounts and on terms to be determined by the Selling
                                            Stockholders at the time of sale.

USE OF PROCEEDS..........................   The Company will receive no part of the proceeds from the sale of
                                            the shares registered pursuant to this Registration Statement other
                                            than the exercise price of the Warrants.

NASDAQ TRADING SYMBOL....................   GMTI
</TABLE>

                                       -4-

<PAGE>

                                  RISK FACTORS

         An investment in the Securities  offered hereby  involves a high degree
of risk and should only be purchased  by investors  who can afford to lose their
entire  investment.  The  following  factors,  in  addition  to those  discussed
elsewhere in the  Prospectus,  should be considered  carefully in evaluating the
Company and its business.

Limited Operating History

         Since its inception in 1992, the Company's primary activities have been
raising capital,  establishing its injection molding and assembly operations and
developing  its  proprietary  "GEM"  (GreenMan  Environmental  Materials)  Stock
materials and tire recycling activities. The Company's success is dependent upon
the successful  development and marketing of its current and future products and
increasing revenue. The probability of such success is highly dependent upon the
Company  increasing  its  customer  base and  volume of  injection  molding  and
assembly  operations,  its ability to market  successfully its proposed GreenMan
consumer products, as well as the commencement of operations for the recovery of
crumb rubber from tires,  among other  things.  The  likelihood of the Company's
overall  success  must  be  considered  in  light  of  the  problems,  expenses,
difficulties, complications and delays frequently encountered in connection with
the  establishment  of a new business and the  development of new  technologies.
These  include,  but are  not  limited  to,  manufacturing  on a  high-capacity,
multi-shift basis, competition,  technological obsolescence,  development of new
products  by  competitors,  the need to develop  market  expertise,  setbacks in
product  development,  market  acceptance,  sales and marketing  and  government
regulation.

Continuing  Operating  Losses;  Explanatory  Paragraph in Independent  Auditors'
Report on GreenMan's  Financial  Statements  Regarding the Company's  Ability to
Continue as a Going Concern

         The Company has not been profitable since its inception. For the fiscal
years ended May 31,  1994,  1995 and 1996,  the Company  incurred  net losses of
$660,105,  $1,092,006 and  $1,578,321,  respectively.  For the nine months ended
February  28, 1997,  the Company  reported a net loss of  $3,498,550,  a working
capital  deficit of $4,413,630  and an accumulated  deficit of  $7,197,004.  The
Company  expects to continue to incur  losses for the  foreseeable  future,  and
there  can  be  no   assurance   that  the  Company  will  achieve  or  maintain
profitability or that any revenue growth can be sustained in the future.

        The  Company's   independent   auditors  have  included  an  explanatory
paragraph in their report on the  Company's  financial  statements  for the year
ended May 31,  1996 to the effect  that the  Company's  ability to continue as a
going  concern is  contingent  upon its ability to secure  financing  and attain
profitable operations. In addition, the Company's ability to continue as a going
concern must be considered in light of the problems,  expenses and complications
frequently  encountered  by  its  entrance  into  established  markets  and  the
competitive environment in which the Company operates.

Uncertainty of Success of Proposed Crumb Rubber Facility

         The Company allocated approximately $1,000,000 from the proceeds of its
initial public offering in September 1995 for the construction of a crumb rubber
recycling  facility.  As of February 28, 1997, the construction was complete and
approximately  $900,000 of the total estimated  construction costs of $1,000,000
had been expended.  The Company's recycling  operation,  which has not yet begun
generating  significant  revenue,  is operating under limited  conditions as the
Company  has made a decision  to  upgrade  its  Jackson,  Georgia  crumb  rubber
production facility to produce a higher-grade  product. As a result, the Company
will  redeploy its current  equipment in a  yet-to-be-announced  joint  venture.
During this

                                       -5-

<PAGE>



refacilitation,  the Company is required to sell lower  value-added Tire Derived
Fuel  ("TDF")  as a way to  fulfill  its  obligation  to BFI Tire  Recyclers  of
Georgia, Inc., a wholly owned subsidiary of Browning-Ferris  Industries ("BFI"),
as described  herein.  The Company is obligated to "take or pay" for 605 tons of
TDF chips per month starting in August 1996 from BFI pursuant to a December 1995
agreement. BFI has acknowledged the delay in production and has agreed to reduce
the  Company's  obligation  by  fifty  percent  (50%)  through  May  1997.  This
obligation  will be eliminated  if the Company is  successful in completing  the
proposed  acquisition  of certain BFI tire recycling  operations.  See "MATERIAL
DEVELOPMENTS".  In addition,  there can be no  assurance  that crumb rubber will
ever be produced in commercial  quantities  at a price that will be  competitive
with,  or at a level of quality  that will be  comparable  or superior to, crumb
rubber currently  available on the market,  or that any significant  revenues or
profits will be generated by sales of crumb rubber.

Limited Experience in Producing GEM Stock; Uncertainty of Market Acceptance

         The Company has  developed,  and is  currently  marketing  on a limited
basis, a proprietary  thermoplastic  rubber  material,  called GEM Stock,  using
recovered  crumb rubber in  combination  with recycled  plastic waste and virgin
plastic. In April 1996, GreenMan signed a license agreement with an unaffiliated
third party for the exclusive  worldwide  right and license to use the company's
proprietary additive technology for co-mingling (mixing and blending) dissimilar
plastics and rubber.  This license agreement  provides GreenMan with the ability
to incorporate  significantly more types of low cost recycled plastic and rubber
into the production of GEM Stock. As currently manufactured, products made using
GEM Stock have  properties  that are  comparable  to those  products  made using
virgin  rubber or plastic at a  significant  cost  savings to the  Company.  The
Company  believes  that GEM Stock is suitable as a raw  material  for use in the
manufacture  of many of the types of  commercial  parts and  products  currently
manufactured  by its molding  operation.  To date,  revenues  from products made
using GEM Stock have accounted for less than 10% of the Company's revenues, and,
as a  result,  there  can be no  assurance  that  the  Company  will  be able to
manufacture GEM Stock in quantities  necessary to achieve  significant  revenues
and profits. The Company may encounter  difficulties in increasing production or
in hiring and  training  additional  personnel to produce and sell its GEM Stock
material  in  commercial  quantities  in a timely  manner,  which  could  have a
materially  adverse effect on the Company's  business,  financial  condition and
results of operations.

         In  addition,  the costs of  producing  crumb  rubber for the GEM Stock
material may be more than anticipated by the Company, in which event the expense
of producing  GEM Stock  material  may result in its not being a  cost-effective
alternative to other raw materials even if its environmental advantages, if any,
can be demonstrated, of which there can be no assurance.

         No independent  market surveys or reports have been obtained  regarding
the markets for the  Company's  GEM Stock  material  or for  products  using GEM
Stock, nor are any such reports planned by the Company. Management believes that
the  Company's  internal  needs for GEM Stock will be addressed  first,  thereby
allowing the Company to become its own customer for raw materials for use in the
manufacture  of its GreenMan  products.  Accordingly,  there can be no assurance
that there will be commercial  acceptance of GEM Stock or products  manufactured
using GEM Stock or that significant revenues can be generated therefrom.


Uncertainty of Market Acceptance of Proposed GreenMan Consumer Products

         In May 1997, the Company commenced  production and sale of the first of
its  proposed  GreenMan  consumer  products,  a GEM Stock trash  container.  The
Company  also  intends  to use GEM  Stock as the  primary  raw  material  in the
manufacture of the Company's proposed line of environmentally friendly, or

                                       -6-

<PAGE>



"green" consumer products,  such as recycling totes, playground and recreational
furniture,  landscape  timbers,  corral and picket  fencing,  storage bins,  and
home-use  composters.  These  products  are  intended to be made using the broad
spectrum of crumb rubber mesh (or particle) sizes to be produced at the Jackson,
Georgia  facility.  The Company is  evaluating  the economic  and  manufacturing
feasibility of several of these proposed products and has conducted  preliminary
discussions  with  possible  distributors  of  such  products.  There  can be no
assurance that such discussions will result in orders for the products, consumer
acceptance of the products or significant  revenues for the Company.  There also
can be no assurance that the Company will be able to manufacture  and market its
proposed GreenMan consumer products,  and if successfully  commercialized,  that
the Company will ever receive  significant  revenues  from sales of its proposed
consumer  products,  or that any sales therefrom will be profitable.  Results of
operations  will  depend on  numerous  factors,  including  regulatory  actions,
competition and market acceptance of the Company's  proposed consumer  products.
The potential  profitability of the Company's  consumer product  operations will
also depend upon the costs  associated with producing  crumb rubber,  as well as
the costs of complying with any applicable environmental regulations, over which
the Company may have little or no control.


Need for Additional Financing to Finance Expansion Plans; Restrictions on Future
Equity Financing

         Based on the Company's  operating plans,  management  believes that the
available  working capital together with revenues from  operations,  the sale of
common stock and the purchase of equipment through lease financing arrangements,
will be  sufficient to meet the Company's  cash  requirements  through the first
quarter of the fiscal  year  ending  May 31,  1998.  The  Company  expects  that
additional financing will be required after this time in order to fund continued
growth. Management has identified and is currently evaluating several additional
financing alternatives and is diligently working to determine the feasibility of
each alternative.  If the Company is unable to obtain additional financing,  its
ability to maintain its current  level of  operations  could be  materially  and
adversely affected and the Company may be required to adjust its operating plans
accordingly.

         In  April  1997,  the  Company  completed  a  $1,500,000   offering  of
convertible  notes due  October  1998 (the  "Notes")  and  warrants  to purchase
300,000 shares of Common Stock (the "April Offering"). The Notes are convertible
into shares of Common Stock at a conversion price equal to 70% of the average of
the  closing  bid  prices  on the five  trading  days  immediately  prior to the
conversion of the Notes,  provided however,  that the conversion price per share
shall be no greater  than 70% of the  average of the  closing  bid prices of the
Common Stock on the five trading days immediately  prior to the date of issuance
of the  Notes.  The net  proceeds  from the April  Offering  were  approximately
$1,280,000 after deducting  commissions and expenses of approximately  $220,000.
The net  proceeds  will be used to pay a $650,000  deposit to BFI in  connection
with the proposed  acquisition  of certain BFI tire  recycling  operations  (See
"MATERIAL  DEVELOPMENTS"),  for  debt  repayment  and  general  working  capital
purposes.

         Pursuant to its  Underwriting  Agreement  with the  underwriter  of its
initial  public  offering  completed in October 1995, the Company may not, until
October 1997, issue any Common Stock or Preferred Stock or any warrants, options
or other rights to purchase  Common Stock or Preferred Stock without the consent
of the  underwriter.  The  Company  currently  has no  commitments  for any such
financing,  and there can be no assurance  that financing will be available when
needed  or on terms  acceptable  to the  Company  or that the  underwriter  will
consent to the terms of any proposed financing. In the event that the Company is
unable to obtain  financing  when  needed,  it would be forced to  restrict  its
development activities to a significant extent or discontinue some or all of its
operations.

                                       -7-

<PAGE>


Uncertainty  of Success  of  Pending  Acquisition  of  Certain  Operations  from
Browning Ferris Industries, Inc.

         On April 18,  1997,  the Company  announced  the signing of a letter of
intent with  Browning  Ferris  Industries,  Inc.  ("BFI") to purchase all of the
issued and  outstanding  stock of BFI's tire recycling  subsidiaries in Jackson,
Georgia and Savage,  Minnesota  and certain tire  processing  related  assets at
BFI's  Azusa,   California   facility   (the   "Acquisition")   (See   "MATERIAL
DEVELOPMENTS").  GreenMan was also granted an exclusive option to purchase BFI's
Ford  Heights,  Illinois tire  recycling  assets and contract  rights.  Upon the
closing of the  Acquisition,  the Company will pay BFI the sum of  $4,850,000 in
cash plus an amount equal to the accounts  receivable  and inventory as shown on
the balance sheets of the  operations.  The closing is expected to occur in June
1997.

         As of the  date of this  Prospectus,  a  definitive  purchase  and sale
agreement  (the  "Purchase  and Sale  Agreement")  has not been  executed by the
Company or BFI. Upon the signing of the Purchase and Sale Agreement, the Company
is required to pay BFI an  additional  deposit of $550,000  against the purchase
price.  Although the Company  currently has  sufficient  available cash to enter
into the Purchase and Sale Agreement,  the Company does not have sufficient cash
to make the payment to BFI at the  Closing.  The Company is  currently  pursuing
discussions with various potential funding sources to provide the cash required.
There can be no  assurance  that the Company will be  successful  in raising the
financing  required to close the  acquisition  or that such financing will be on
terms acceptable to the Company. In the event that the Company is not successful
in securing the  financing  on or before June 21,  1997,  BFI could elect not to
proceed with the proposed  acquisition  and Company would lose all payments made
to BFI.

         Assuming  that the  proposed  acquisition  is  closed,  there can be no
assurance that the anticipated  benefits from the acquisition  will be realized.
The integration of the three operations will require substantial  attention from
management and there can be no assurance that  management  will be successful in
supervising and coordinating the activities of the additional  locations.  There
can be no  assurance  that the  proposed  acquisition  will not have a  material
adverse effect on the Company's business and results of operations. In addition,
the  acquired  operations  may not achieve the revenue or  profitability  levels
experienced by the operations under BFI's ownership.

Dependence on Joint Ventures; Lack of Control Over Possible Joint Ventures

         The Company's  ability to develop,  manufacture and market its proposed
line of  environmentally  friendly,  or  "green"  consumer  products  as well as
manufacture  GEM Stock on a cost  effective  basis,  will be  constrained by the
Company's  limited  financial  and human  resources.  In order to  increase  its
potential  ability to develop a broader range of products in a shorter period of
time than might otherwise be possible, the Company will seek to enter into joint
ventures  or other  strategic  alliances  with  entities  that  have  financial,
technical,  marketing or other  complementary  resources.  The  inability of the
Company  to  enter  into  such  arrangements  could  significantly   impede  the
development  of products by the Company.  Even if the Company  enters into joint
venture agreements,  the Company will not be in a position to control such joint
ventures  since it is likely  that  joint  venture  partners  will have  greater
financial,  technical  or  marketing  resources.  In  addition,  in the event of
disagreement  between the Company  and  possible  joint  venture  partners,  the
Company's  development  and  marketing  plans  could  be  seriously  delayed  or
terminated  since the  Company  would  likely not be in a  position  to alter or
terminate a joint venture  agreement or to buy out its joint  venture  partners.
There can be no assurance that appropriate  co-venturers or others can be found,
that the  Company  will be able to enter into such  arrangements  on  acceptable
terms,  or that such  arrangements  will result in the more rapid or  successful
development, manufacture or sale of products.


                                       -8-
<PAGE>


Dependence upon Major Customers

         In the fiscal year ended May 31,  1996,  two  customers  accounted  for
approximately  38% and 14%,  respectively,  of the  Company's  consolidated  net
sales.  The  Company  does not have  long-term  contracts  pursuant to which any
customer is required to purchase any minimum amount of products. There can be no
assurance that the Company will continue to receive orders of the same magnitude
from  existing  customers  or that it will be  able to  market  its  current  or
proposed  products  to new  customers.  The loss of any  major  customer  by the
Company would have a materially adverse effect on the business of the Company as
a whole.

The Company's Dependence upon Suppliers of Raw Materials

         Generally,  raw materials  required for the Company's molding operation
are purchased  directly from  suppliers on a purchase  order basis rather than a
contract basis. There can be no assurance that, absent contracts with firm price
and delivery terms, that suppliers will not increase their prices,  change their
credit terms or impose other  conditions of sale that may be  unfavorable to the
Company.  While  the  Company  does not  believe  that it would  experience  any
significant  difficulty  in  obtaining  materials  from  alternative  sources on
comparable terms, there can be no assurance that such supplies could be obtained
on price and delivery terms favorable to the Company.  Until such time, if ever,
that the Company  begins to produce GEM Stock in sufficient  quantities  for its
own use on a cost  effective  basis,  it is, and will be,  required  to purchase
crumb  rubber and recycled  and virgin  plastic  from third  parties in order to
produce its proposed GreenMan consumer products.  Management believes that there
are currently a limited number of suppliers of high-quality crumb rubber that is
free of  fiber  and  metal.  In  addition,  when  and if the  Company  commences
production of GEM Stock in commercial quantities, it will primarily require used
tires as raw materials.

         The  Company  believes  that  the  overall  supply  of  tires  will  be
sufficient  to  meet  the  Company's   requirements  for  crumb  rubber  in  the
foreseeable  future based on the Company's  agreement  with BFI whereby BFI will
supply the Company's Recycling operation with a minimum of 3.5 million tires per
year, initially for 5 years with the ability to extend the agreement for another
15 years.  The  Company  has  reason to  believe  that  through  its  nationwide
operations, BFI has access to more than 40 million additional tires per year for
processing.  If the  acquisition  of certain BFI tire  recycling  operations  is
completed,  of which there can be no  assurance,  GreenMan  will gain  immediate
access to over 12 million  tires.  If GreenMan  exercises its option to purchase
BFI's Ford Heights,  Illinois tire  recycling  operations,  GreenMan  would gain
access to an additional 8 million  tires.  According to Scrap Tire News,  nearly
250 million passenger  automobile tires are currently  discarded annually in the
U.S., and of that total approximately 1% are used for asphalt pavement,  11% are
burned to provide energy, approximately 2% are processed for retreading, and the
remaining tires are  landfilled,  adding more than 200 million tires annually to
the estimated 3 billion tires already stockpiled in landfills.

         DuraWear  obtains its primary raw materials,  consisting of alumina and
nickel  oxides  from a number of  sources  on a  purchase  order  rather  than a
contract basis.  Therefore,  the price and other terms upon which such materials
are  obtained  are also  subject to change over which  DuraWear  has no control.
Management believes that competitive alternate sources of such raw materials are
available,  but there can be no assurance  that this would be the case at a time
when such sources might be needed by the Company.

DuraWear's Dependence upon Third-Party Manufacturers

         DuraWear  manufactures  its ceramic products at the facility it owns in
Birmingham,  Alabama.  DuraWear's  polymer  composites  and other  products  are
manufactured by third parties on a contract basis.  DuraWear's polymer composite
products are currently produced by only one supplier to DuraWear's

                                       -9-
<PAGE>


specifications under a confidentiality  agreement, and the number of alternative
suppliers is limited.  Management has identified several  alternative  suppliers
for  DuraWear's  polymer  composite  products  in the event  that  there are any
adverse changes in its existing relationships. With the exception of its polymer
composites,  the Company believes that there are multiple  manufacturing sources
available  for  DuraWear's  other  products.  While  DuraWear  has  longstanding
relationships with its current suppliers,  such facilities are not controlled by
DuraWear, and they could sever their relationships with DuraWear at any time. In
such event, particularly as regards the products for which there are now limited
suppliers, it could be difficult for DuraWear to find other suppliers that could
manufacture  DuraWear's  products to the specifications  required by DuraWear on
acceptable terms, if at all.

Significant Competition

         The  injection  molding  contract   manufacturing  industry  is  highly
competitive  and  characterized  by  severe   price-cutting  by  small  regional
contractors.  While the Company believes that its facility, modern equipment and
advanced quality control are attractive features to potential  customers,  there
can be no assurance that the Company can capture adequate competitive  contracts
to achieve or sustain  profitability,  either at its present  location or at any
satellite location it seeks to establish.

         In seeking to  introduce  and market  its  proposed  GreenMan  consumer
products,  the Company will be competing with many established  manufacturers of
similar products. Most of these competitors have substantially greater financial
and marketing  resources and  significantly  greater name recognition among both
retailers and consumers  than the Company.  A number of companies  with products
made from  recycled  tires have already  entered the market.  For example,  OMNI
Rubber  Products  manufactures   solid-rubber,   non-steel  reinforced  railroad
crossings from recycled crumb rubber and R.A.S.  Recycling,  Inc., together with
Royal Rubber Manufacturing, are developing playground and recreational surfacing
mats made of recycled tire rubber. In addition,  several  companies  manufacture
products similar to the Company's  proposed  GreenMan line of products,  such as
industrial floor mats, playground furniture, and landscape timbers. There can be
no  assurance  that the  Company  will be able to  compete  successfully  in the
consumer market.

         If the  Company is  successful  in  manufacturing  and  selling its GEM
Stock,  of which there can be no assurance,  the Company will compete with other
producers  and  suppliers  of  traditional  plastic  and  thermoplastic   rubber
products,  including  recycled and virgin  products.  The  Company's  success in
marketing its products will depend on its ability to convince  potential  buyers
that its products are of comparable or superior quality to alternative  products
and that they are also comparable in cost to competing products. There can be no
assurance that the Company will be able to compete  effectively with established
producers,  many of which have substantially greater financial and manufacturing
resources than those of the Company.

         DuraWear has several  competitors  for its products,  most of whom have
greater financial and marketing resources than DuraWear. In the ceramics market,
competitors  include  Coors  Ceramics  Co.,  Champion  and  Packo  International
Ceramics,  Inc. and in the polymer  composite  market include Solidur  Plastics,
DuPont and BP America. DuraWear competes on the basis of the longer-lasting wear
resistance  performance  of its  products as  compared  to  products  offered by
competitors.   Management   believes  that  DuraWear  products  offer  customers
significant cost advantages, notwithstanding DuraWear's products' higher prices.

Government and Environmental Regulation

         The Company's tire recycling and  manufacturing  activities are subject
to  extensive  and  rigorous  government  regulation  designed  to  protect  the
environment. Management does not expect that the Company's

                                      -10-

<PAGE>



activities  will  result in the  emission  of air  pollutants,  the  disposal of
combustion residues, or the storage of hazardous substances (as is the case with
other  tire  recycling  processes  such as  pyrolysis).  The  establishment  and
operation of plants for tire recycling are subject to obtaining numerous permits
and complying with environmental and other government  regulations,  both in the
U.S. and most foreign countries.  The process of obtaining  required  regulatory
approvals  can be lengthy and  expensive.  Moreover,  regulatory  approvals,  if
granted, may include significant  limitations on the Company's  operations.  The
EPA  and  comparable  state  and  local  regulatory  agencies  actively  enforce
environmental   regulations  and  conduct  periodic   inspections  to  determine
compliance  with  government  regulations.  Failure  to comply  with  applicable
regulatory requirements can result in, among other things, fines, suspensions of
approvals, seizure or recall of products,  operating restrictions,  and criminal
prosecutions.  Furthermore,  changes in existing  regulations or adoption of new
regulations  could impose costly new procedures for  compliance,  or prevent the
Company from obtaining, or affect the timing of, regulatory approvals.

         The effect of government  regulation may be to delay for a considerable
period of time or to prevent the Company from developing its business as planned
and/or impose costly requirements on the Company,  the result of which may be to
furnish an advantage to its  competitors or to make the Company's  business less
profitable, or unprofitable, to operate.

Technological Changes

         The Company has limited resources to devote to research and development
of new  products,  and as a result,  technological  advances  by any  present or
potential  competitors could render obsolete both present and future products of
the Company.  Although the Company is not currently  aware of any  technological
changes  which have rendered the Company's  products  obsolete,  there can be no
assurance  that in the  future the  Company's  technology  will not be  rendered
obsolete  as  a  result  of  technological  developments.  Many  companies  with
substantially  greater resources than the Company are engaged in the development
of products and processes using recycled tires.

Limited Protection of Proprietary Information

         None of the equipment or machinery  that the Company  currently uses or
intends  to  use  in  its  current  or  proposed  manufacturing  activities  are
proprietary.  Any competitor can acquire  equivalent  equipment and machinery on
the open market. The Company believes that it has developed specialized know-how
in the blending of plastics and rubber for use in its molding  machines and that
its processes are  proprietary.  The Company has acquired  exclusive  world-wide
rights to a  proprietary  additive  technology  which will enable the Company to
blend a broader range of virgin and recycled plastics  together,  and/or combine
such plastics with crumb rubber from recycled  tires.  The Company also believes
that  many  of the  formulae  and  processes  used in  manufacturing  DuraWear's
products are proprietary,  and DuraWear has executed confidentiality  agreements
with the  appropriate  employees and  subcontractors.  However,  there can be no
assurance that competitors will not develop  processes or products of comparable
efficiency and quality.  DuraWear does not have any patents and does not believe
any of its products are patentable. Moreover, there can be no assurance that any
patents  that may be granted in the future  will be  enforceable  or provide the
Company with  meaningful  protection  from  competitors.  Even if a competitor's
products were to infringe patents owned by the Company,  it could be very costly
for the Company to enforce its rights in an infringement action, and such action
would divert funds and resources  otherwise  used in the  Company's  operations.
Consequently,  there  can be no  assurance  that  the  Company  would  elect  to
prosecute potential patent infringement claims it might have. Furthermore, there
can be no assurance that the Company's  proposed  products will not infringe any
patents or rights of others.


                                      -11-

<PAGE>



         The  Company  has used the name  "GreenMan"  and other  trade  names in
interstate  commerce  and  asserts a common  law right in and to such  names.  A
trademark  search has been  conducted for the name  "GreenMan"  which found that
there are no  significantly  similar names currently being used in the Company's
current and intended industries. The Company intends to file an application with
the U.S.  Department of Commerce,  Patent and  Trademark  Office to register its
name and establish trademark rights.  There can be no assurance,  however,  that
such a trademark  application  will be  approved.  Although the Company has been
using the GreenMan  name for its custom  molding  services and has not yet begun
significant marketing for its consumer products, the inability of the Company to
continue  to use  the  name  in  connection  with  such  services  as well as in
connection with the proposed  GreenMan  consumer  products could have an adverse
effect on the Company's  efforts to establish name  recognition for its products
in the commercial and consumer marketplace.

         DuraWear has registered trademarks for a number of products,  including
CeraDur and Xylethon and has used the name  "ExcelloSlide" and other trade names
in  interstate  commerce  and  asserts a common law right in and to such  names.
There can be no assurance,  however,  that such right would sufficiently protect
the  Company's  right to use such names or that,  if and when the Company  files
trademark applications for such names, that such applications would be approved.

Current Lack of, and Possible  Unavailability  of, Product  Liability  Insurance
Coverage

         The Company presently  maintains  limited product  liability  insurance
relating to its products,  and does not intend to increase such coverage for its
current  products  in the  foreseeable  future.  The  Company  intends  to  seek
additional  coverage  with  respect to any  consumer  products it markets in the
future.  However, there can be no assurance that such coverage will be available
at  affordable  rates or that the  coverage  limits of the  Company's  insurance
policies, if any, will be adequate, if and when the Company markets its proposed
GreenMan  consumer  products.  Such insurance is expensive and in the future may
not be available on acceptable  terms,  if at all.  Although the Company has not
experienced  any product  liability  claims to date, a successful  claim brought
against the Company  could have a  materially  adverse  effect on the  Company's
business, financial condition and results of operations.

Dependence Upon Key Personnel

         The  Company's  success  depends,  to a  significant  extent,  upon key
members of  management.  The loss of services  of one or more of these  persons,
especially the Company's  Chief  Executive  Officer and Chairman of the Board of
Directors,  Maurice E. Needham,  and the Company's  President,  James F. Barker,
could have a  materially  adverse  effect on the  business of the  Company.  The
Company has entered into three-year  employment  agreements with each of Messrs.
Needham,  Barker and Joseph E.  Levangie,  a director  and the  Company's  Chief
Financial  Officer.  The  Company  has  purchased  key-employee  life  insurance
policies,  each in the amount of $1,000,000,  to insure the lives of Mr. Needham
and Mr. Barker. The Company believes that its future success will also depend in
part upon its  ability to  attract,  retain and  motivate  qualified  personnel.
Competition  for such  personnel is intense.  There can be no assurance that the
Company will be successful in attracting and retaining such personnel.

Volatility of Stock Price

         The market for securities of early stage,  rapidly  growing  companies,
including those of the Company,  has been highly  volatile.  The market price of
the Company's  Common Stock has  fluctuated  between $8.63 and $.75 from October
1995 to April 1997 and was $.81 on May 15, 1997, and it is likely that the price
of  the  Common  Stock  will  continue  to  fluctuate   widely  in  the  future.
Announcements of technical innovations,

                                      -12-

<PAGE>



new commercial  products,  patent or proprietary rights or other developments by
the Company or its competitors could have a significant  impact on the Company's
business and the market price of the Common Stock.

Limited Trading Volume of Common Stock

         The development of a public market having the desirable characteristics
of liquidity and  orderliness  depends upon the presence in the marketplace of a
sufficient  number of willing  buyers and sellers at any given time,  over which
neither the Company nor any market maker has any control. Accordingly, there can
be no assurance that a significant  trading  market for the  securities  offered
hereby  will  develop,  that  quotations  will be  available  on the  NASDAQ  as
contemplated,  or if a  significant  market  develops,  that  such  market  will
continue.  Although  the  trading  volume for the Common  Stock,  as reported by
NASDAQ,  averaged 246,344 shares per week during the period from October 1995 to
March 1997 and 1,119,077 shares per week during the four-week period ended April
30, 1997,  there can be no  assurance  that persons  purchasing  the  securities
offered  hereby will be able readily to sell the securities at the time or price
desired.

Adverse Consequences Associated with Reservation of Substantial Shares of Common
Stock

         As of February 28, 1997, the Company had reserved  4,258,233  shares of
Common Stock for issuance  upon the  exercise of its  publicly-traded  warrants,
underwriter warrants and other warrants. The foregoing number of shares does not
include (i) up to 1,700,000  shares of Common Stock  reserved for issuance  upon
conversion of its 7% convertible subordinated debentures or the 1,200,000 shares
of Common Stock  reserved for issuance upon the exercise of the warrants  issued
in an offering in January  1997;  (ii) up to  2,577,890  shares of Common  Stock
reserved for issuance  upon  conversion of the notes or exercise of the warrants
issued in the April  Offering;  (iii) nor the  1,200,000  shares of Common Stock
issuable  upon  conversion of the note issued to Palomar  Medical  Technologies,
Inc. on December 31,  1996.  In  addition,  the Company has  reserved  1,270,700
shares for issuance to employees,  officers, directors and consultants under its
1993 Stock  Option  Plan and its 1996  Director  Stock  Option  Plan and 866,000
shares for  issuance  under  other  options  and  warrants.  The price which the
Company may receive for the Common Stock  issuable upon exercise of such options
and  warrants  will,  in all  likelihood,  be less than the market  price of the
Common Stock at the time of such  exercise.  Consequently,  for the life of such
options and warrants,  the holders thereof may have been given, at nominal cost,
the opportunity to profit from a rise in the market price of the Common Stock.

         The exercise of all of the aforementioned securities may also adversely
affect the terms under which the Company could obtain additional equity capital.
In all likelihood, the Company would be able to obtain additional equity capital
on  terms  more  favorable  to the  Company  at the  time  the  holders  of such
securities choose to exercise them. In addition,  should a significant number of
these  securities  be  exercised,  the  resulting  increase in the amount of the
Common  Stock in the public  market  may  reduce the market  price of the Common
Stock. Also, the Company has agreed that, under certain  circumstances,  it will
register under Federal and state securities laws certain securities  issuable in
connection  with warrants  issued to the  underwriter  of the Company's  initial
public offering.


                                      -13-

<PAGE>

                                   THE COMPANY

         The Company was incorporated under the laws of the State of Arkansas on
September 16, 1992 and reincorporated under the laws of the State of Delaware on
June 27, 1995. The Company was formed primarily to develop, manufacture and sell
"environmentally  friendly" plastic and thermoplastic  rubber parts and products
that are manufactured using recycled  materials and/or are themselves  partially
or wholly  recyclable.  On October 10,  1995,  the Company  acquired  all of the
outstanding common stock of DuraWear.

         The Company's molding operation, located in Malvern, Arkansas, provides
injection  molding  manufacturing  services to customers'  specifications in the
production of plastic and thermoplastic rubber parts for such products as stereo
components  and  speakers,  water  filters and pumps,  plumbing  components  and
automotive  accessories.  The molding  operation  uses  leased  state-of-the-art
injection molding  equipment that is energy and labor efficient,  has fast cycle
times and minimizes production waste. The facility also conducts R&D testing and
development of the Company's GreenMan Environmental  Materials ("GEM") Stock and
tests the use of these  materials  in the  manufacture  of a variety of "sample"
products.

         The  Company's  molding  operation  commenced  the  manufacture  of the
Company's first consumer product, a GEM Stock trash container,  in the Spring of
1997. Future proposed products, to be manufactured  utilizing injection molding,
will also be produced  at the molding  operation,  which  management  expects to
result in a gradual transition from  contract/custom  molding to captive molding
activities.

         The Company's recycling  operation,  located in Jackson,  Georgia,  was
established to develop  low-cost  sources of rubber and plastic waste (made from
recycled  plastics and crumb rubber from tires) for use in the production of the
Company's GEM Stock and to develop markets for end-products to be made using the
GEM Stock.

         The Company has targeted  several  markets with products  incorporating
significant  amounts of recovered crumb rubber and plastic waste,  including the
building industry with anti-fatigue floor mats,  roofing products,  and timbers;
the lawn and garden market with  landscape  timbers,  and fencing;  the consumer
products market with trash containers,  recycling totes, and storage containers;
and the  transportation  industry with nose cones,  barriers,  railroad ties and
railway  crossing  mats.  Through an agreement with Browning  Ferris  Industries
("BFI"),  the Company has a secured multi-year supply of waste tires to feed the
Company's Jackson, Georgia crumb rubber processing operation.

                                 USE OF PROCEEDS

         The Company will receive no part of the proceeds from the resale by the
Selling Stockholders of any Shares issuable upon conversion of the Notes or upon
exercise of the Warrants.  The gross proceeds to be received by the Company from
exercise of all of the Warrants (assuming that all of the Warrants are exercised
will be  $456,563,  and  management  intends to use such  proceeds  for  general
working  capital  purposes   including   expenditures  in  connection  with  the
development, sales and marketing of future products for the Company.

                              SELLING STOCKHOLDERS

         The following  table sets forth  information  concerning the beneficial
ownership of shares of Common Stock by the Selling  Stockholders  as of the date
of this  Prospectus  and the  number of such  shares  included  for sale in this
Prospectus assuming the sale of all Shares being offered by this Prospectus.  To
the best of the Company's  knowledge,  none of the Selling Stockholders has held
any office or maintained any material

                                      -14-

<PAGE>


relationship  with the Company or its  predecessors  or affiliates over the past
three years. The Selling  Stockholders reserve the right to reduce the number of
Shares offered for sale or to otherwise decline to sell any or all of the Shares
registered hereunder.

         The principal of the Notes is  convertible,  at any time  commencing 60
days  after  the date of  issuance  and on or  before  one year from the date of
issuance,  into shares of Common Stock at a conversion  price per share equal to
seventy  percent  (70%) of the  average of the  closing bid prices of the Common
Stock as reported by NASDAQ on the five trading days  immediately  preceding the
date on which such Note is converted into Common Stock,  provided however,  that
the  conversion  price per share shall be no greater than  seventy  (70%) of the
average of the closing  bid prices of Common  Stock as reported by NASDAQ on the
five trading days immediately  preceding the date of issuance of the Notes. Upon
conversion of the Notes, the Holder will also receive 400 shares of Common Stock
for each  $10,000 of  principal  converted in payment of any and all interest on
the Note.

         For purposes of the following  table,  the Company has assumed that all
of the principal of the Notes has been converted to Common Stock at a conversion
price per share  which is 70% of the  average of the  closing  bid prices of the
Common Stock on the five trading days  immediately  preceding the dates on which
the Notes were  issued.  A total of  $750,000 in  principal  amount of Notes was
issued  on April 7,  1997 and the  assumed  conversion  price of these  Notes is
$.8531 per share. A total of $300,000 in principal amount of Notes was issued on
April 21,  1997 and the assumed  conversion  price of these Notes is $.63875 per
share.  The balance of $450,000 in principal amount of Notes was issued on April
30, 1997 and the assumed  conversion price of these Notes is $.63 per share. The
calculation of the number of Shares owned after the Offering assumes that all of
the Shares offered hereby are sold.
<TABLE>
<CAPTION>

                                                       Shares to be Sold in Offering(1)

                                                         Shares from       Shares from
                                    Shares Owned        Conversion of      Exercise of         Shares Owned
  Name of Selling Stockholder     Prior to Offering      Debentures          Warrants         After Offering
  ---------------------------     -----------------     -------------      -----------        --------------
<S>                                      <C>              <C>              <C>                      <C>

Coutts & Co. AG, Zurich                   0                1,234,559        190,000(2)               0
The Endeavour Capital                                                                         
Fund, S.A.                                0                  481,667         60,000(2)               0
FT Trading Company                        0                  325,460         40,000(2)               0
Cook & CIE S.A.                           0                   81,365         10,000(2)               0
Tamosuis & Partners                       0                        0         98,065(3)               0
H.J. Meyers & Co., Inc.                   0                        0         28,387(3)               0
Taurus Financial, Inc.                    0                        0         28,387(3)               0
<FN>
 
(1) The actual number of Shares that can be sold in the Offering is subject to adjustment and could be materially  less or more than
the estimated amount indicated  depending upon factors which cannot be predicted by the Company at this time,  including among other
things, the market price of the Common Stock on the five trading days immediately preceding the date the Notes are converted and the
principal amount of Notes actually converted.

                                                                -15-

<PAGE>


(2)  Represents shares of Common Stock issuable pursuant to Investor Warrants,  each exercisable for Common Stock for two years from
     the date of issuance,  and issued in connection  with the sale of the Notes to each purchaser of a Note in an amount equal to a
     warrant to purchase one share of Common Stock for every $5.00 of principal of Notes purchased by such investor.

(3)  Represents shares of Common Stock issuable pursuant to Broker Warrants,  each exercisable for Common Stock at $.96875 per share
     for two years from the date of issuance, which Warrants were issued to the placement agent and its designees in connection with
     the sale of the Notes.
</FN>
</TABLE>

                              PLAN OF DISTRIBUTION

         Of the 2,577,890 Shares being registered herein for sale by the Selling
Stockholders,  (i) up to 2,123,051  Shares are issuable  upon  conversion of the
Notes; (ii) 300,000 Shares are issuable upon exercise of the Investor  Warrants;
and (iii) 154,839 Shares are issuable upon exercise of the Broker Warrants.  All
Shares to be registered  hereby are to be offered by certain security holders of
the Company,  and,  other than the exercise  price of the Warrants,  the Company
will receive no proceeds from the sale of Shares offered hereby.

         The  Selling  Stockholders  may sell the  Common  Stock  registered  in
connection  with this Offering on the NASDAQ  market system or otherwise.  There
will  be  no  charges  or  commissions  paid  to  the  Company  by  the  Selling
Stockholders  in connection  with the issuance of the Shares.  It is anticipated
that usual and customary brokerage fees will be paid by the Selling Stockholders
upon sale of the Common  Stock  offered  hereby.  The Company will pay the other
expenses  of this  Offering.  The  Shares  may be sold  from time to time by the
Selling Stockholders,  or by pledges, donees, transferees or other successors in
interest.  Such  sales  may  be  made  on  one  or  more  exchanges  or  in  the
over-the-counter  market, or otherwise at prices and at terms then prevailing or
at  prices  related  to  the  then  current  market  price,   or  in  negotiated
transactions.  The  Shares  may be sold by one or more of the  following:  (a) a
block  trade in which the broker so engaged  will  attempt to sell the Shares as
agent but may  position  and  resell a  portion  of the  block as  principal  to
facilitate the transaction; (b) purchases by a broker or dealer as principal and
resale by such broker or dealer for its account pursuant to this Prospectus; (c)
an  exchange  distribution  in  accordance  with the  rules of  NASDAQ;  and (d)
ordinary brokerage transactions.  In effecting sales, brokers or dealers engaged
by the  Selling  Stockholders  may  arrange  for other  brokers  or  dealers  to
participate.  Brokers or dealers will  receive  commissions  or  discounts  from
Selling Stockholders in amounts to be negotiated prior to the sale. Such brokers
or dealers  and any other  participating  brokers or dealers may be deemed to be
"underwriters"  within the meaning of the Act in connection  with such sales. In
addition,  any  securities  covered by this  prospectus  which  qualify for sale
pursuant to Rule 144 of the Act may be sold under Rule 144 rather than  pursuant
to this Prospectus.

         The Company has agreed to indemnify certain of the Selling Stockholders
against certain liabilities,  including certain liabilities under the Act, or to
contribute to payments  which a Selling  Stockholder  may be required to make in
respect thereof.

                                  LEGAL MATTERS

         The  validity  of the shares of Common  Stock  offered  hereby  will be
passed upon for the Company by Sullivan & Worcester LLP, One Post Office Square,
Boston,  Massachusetts  02109.  John A. Piccione,  Esq., a partner at Sullivan &
Worcester LLP holds options to purchase 50,000 shares of Common Stock.



                                      -16-
<PAGE>

                                     EXPERTS

         The consolidated  financial  statements of the Company appearing in the
Company's  Annual  Report on Form 10-KSB for the fiscal year ended May 31, 1996,
have been audited by Wolf & Company,  P.C.  independent auditors as set forth in
their report  thereon,  which  includes an explanatory  paragraph  regarding the
Company's  ability  to  continue  as  a  going  concern,  included  therein  and
incorporated  herein by reference.  Such financial  statements are  incorporated
herein by  reference in reliance  upon such report  given upon the  authority of
such firm as experts in accounting and auditing.


                      DISCLOSURE OF COMMISSION POSITION ON
                 INDEMNIFICATION FOR SECURITIES ACT LIABILITIES

         Insofar as indemnification for liabilities arising under the Act may be
permitted to  directors,  officers  and  controlling  persons of the  Registrant
pursuant to the foregoing  provisions,  or otherwise,  the  Registrant  has been
advised that in the opinion of the Commission  such  indemnification  is against
public policy as expressed in such Act and is, therefore,  unenforceable. In the
event that a claim for indemnification  against such liabilities (other than the
payment by the Registrant of expenses incurred or paid by a director, officer or
controlling  person of the Registrant in the  successful  defense of any action,
suit or proceeding) is asserted by such director,  officer or controlling person
in connection with the Shares being  registered,  the Registrant will, unless in
the opinion of its counsel the matter has been settled by controlling precedent,
submit  to a  court  of  appropriate  jurisdiction  the  question  whether  such
indemnification by it is against public policy as expressed in such Act and will
be governed by the final adjudication of such issue.

                              MATERIAL DEVELOPMENTS

Proposed Acquisition of Certain Operations from Browning Ferris Industries, Inc.

         On  April  18,  1997,  GreenMan  Technologies,   Inc.  (the  "Company")
announced that it had signed a letter of intent with Browning Ferris Industries,
Inc.  ("BFI") of Houston,  Texas to purchase  all of the issued and  outstanding
stock of BFI's tire  recycling  subsidiaries  located in  Jackson,  Georgia  and
Savage,  Minnesota and to purchase  certain tire  processing  related  assets at
BFI's  Azusa,  California  facility  (hereinafter  the purchase of the stock and
assets is referred to as the  "Acquisition").  The letter of intent also granted
the Company an exclusive  option to purchase  BFI's Ford Heights,  Illinois tire
recycling assets.

         Upon  the  closing  of  the  Acquisition,  of  which  there  can  be no
assurance, the Company will pay BFI the sum of $4,850,000 in cash plus an amount
equal to the accounts receivable and inventory as shown on the balance sheets of
the three  operations.  The Company has already  paid  $100,000 to BFI as a good
faith deposit  against the purchase  price and will pay an  additional  $550,000
upon signing of the definitive Purchase and Sale Agreement.  The Closing,  which
is subject to legal and  financial  due  diligence by the Company is expected to
occur in June 1997.

Issuances of Common Stock Upon Conversion of Company's 7% Convertible Debentures

         In  accordance  with  the  terms  of  the 7%  Convertible  Subordinated
Debentures (the "Debentures") issued by the Company in January 1997, the Company
issued to certain holders of the Debentures in the period from March 26, 1997 to
April 18, 1997 an aggregate of 1,249,809 shares of Common Stock in conversion of
an aggregate of $825,000 in principal amount of the Debentures.  As of April 30,
1997, the

                                      -17-

<PAGE>



outstanding  principal amount of Debentures totaled $700,000.  The principal and
accrued  interest on the Debentures are convertible by the holder into shares of
Common  Stock at a  conversion  price  per  share  equal to the lower of (a) the
closing bid price of the Common  Stock,  as  reported by NASDAQ,  on the date of
issuance of the Debentures,  or (b) 70% of the Market Price of the Common Stock.
As defined in the Debentures, the "Market Price" is the closing bid price of the
Common  Stock on the trading day  immediately  preceding  the date on which such
Debenture  is  converted  into  Common  Stock,  or the  closing bid price in the
over-the-counter  market,  or in the event the Common Stock is listed on a stock
exchange,  the Market Price shall be the average  closing price on the exchange,
as reported to the Wall Street Journal.

                                      -18-

<PAGE>

================================================================================

         No dealer,  salesman or other  person has been  authorized  to give any
information  or make any  representation  other  than  those  contained  in this
Prospectus.  If given or made, such information or  representations  must not be
relied upon as having been  authorized by the Company.  This Prospectus does not
constitute  an offer to sell or the  solicitation  of an offer to buy any of the
securities other than the specific  securities to which it relates,  or as offer
or  solicitation  to any  person  in any  jurisdiction  where  such an  offer or
solicitation would be unlawful.


                     TABLE OF CONTENTS                                 
                                                      Page

Available Information....................................2
Incorporation of Certain
  Documents by Reference.................................2
Prospectus Summary.......................................4             
Risk Factors.............................................5
The Company.............................................14             
Use of Proceeds.........................................14             
Selling Stockholders....................................14
Plan of Distribution....................................16
Legal Matters...........................................16             
Experts.................................................17
Disclosure of Commission Position on
  Indemnification for Securities Act
  Liabilities ..........................................17
Material Developments...................................17



                        2,577,890 Shares of Common Stock
                                    
                                    
                           GREENMAN TECHNOLOGIES, INC.
                                    
                       
                                    
                                   PROSPECTUS
                            
                                    
                                  May __, 1997


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


                                      -19-
<PAGE>



                                     PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS

Item 14. Other Expenses of Issuance and Distribution

         The expenses in connection  with the issuance and  distribution  of the
Common Stock to be  registered  are  estimated  (except for the  Securities  and
Exchange  Commission  filing fee) below.  All such  expenses will be paid by the
Registrant.


Registration Fee Under Securities Act               $     718.68
Blue Sky Fees and Expenses                              2,000.00
Legal Fees and Expenses                                10,000.00
Accounting Fees and Expenses                            4,000.00
Printing and Mailing Costs                              1,000.00
Miscellaneous Fees and Expenses                         2,000.00
                                                       ---------
            Total Expenses                          $  19,718.68


Item 15. Indemnification of Directors and Officers

         Delaware  General   Corporation  Law,  Section  102(b)(7),   enables  a
corporation in its original certificate of incorporation or an amendment thereto
validly  approved by  stockholders  to eliminate or limit personal  liability of
members of its Board of Directors for violation of a director's  fiduciary  duty
of care. However,  the elimination or limitation shall not apply where there has
been a breach of the duty of loyalty,  failure to act in good faith,  engagement
in intentional  misconduct or knowing  violation of a law, payment of a dividend
or approval of a stock  repurchase  which was deemed illegal or the obtaining of
an  improper  personal  benefit.  The  Company's  Certificate  of  Incorporation
provides the following language:

                  "NINTH.  To the maximum extent permitted by Section  102(b)(7)
         of the  General  Corporation  Law  of  Delaware,  a  director  of  this
         Corporation  shall not be personally  liable to the  Corporation or its
         stockholders  for monetary  damages for breach of  fiduciary  duty as a
         director,  except for  liability  (i) for any breach of the  director's
         duty of loyalty to the Corporation or its  stockholders,  (ii) for acts
         or omissions not in good faith or which involve intentional  misconduct
         or a knowing  violation of law, (iii) under Section 174 of the Delaware
         General  Corporation  Law, or (iv) for any  transaction  from which the
         director derived an improper personal benefit.

                  TENTH. The Corporation  shall, to the fullest extent permitted
         by Section 145 of the General  Corporation Law of Delaware,  as amended
         from time to time,  indemnify  each  person who was or is a party or is
         threatened to be made a party to any  threatened,  pending or completed
         action, suit or proceeding, whether civil, criminal,  administrative or
         investigative,  by reason of the fact that he is or was,  or has agreed
         to become,  a director  or  officer  of the  Corporation,  or is or was
         serving, or has agreed to serve, at the request of the Corporation,  as
         a  director,  officer or  trustee  of, or in a similar  capacity  with,
         another  corporation,   partnership,  joint  venture,  trust  or  other
         enterprise  or by reason of any  action  alleged  to have been taken or
         omitted in such capacity,  against all expenses  (including  attorneys'
         fees),  judgments,  fines and amounts paid in  settlement  actually and
         reasonably  incurred  by him or on his behalf in  connection  with such
         action, suit or proceeding and any appeal therefrom.

                                      II-1

<PAGE>



                  Indemnification  may  include  payment by the  Corporation  of
         expenses in defending an action or  proceeding  in advance of the final
         disposition of such action or proceeding upon receipt of an undertaking
         by the person  indemnified  to repay such  payment if it is  ultimately
         determined  that such person is not entitled to  indemnification  under
         this Article.

                  The  Corporation  shall not indemnify any such person  seeking
         indemnification  in  connection  with a  proceeding  (or part  thereof)
         initiated by such person unless the initiation  thereof was approved by
         the Board of Directors of the Corporation.

                  The  indemnification  rights  provided in this  Article  TENTH
         shall  not be deemed  exclusive  of any  other  rights  to which  those
         indemnified  may be  entitled  under  any  law,  agreement  or  vote of
         stockholders or  disinterested  directors or otherwise,  and (ii) shall
         inure to the benefit of the heirs, executors and administrators of such
         persons.  The  Corporation  may, to the extent  authorized from time to
         time by its Board of Directors,  grant indemnification  rights to other
         employees  or agents of the  Corporation  or other  person  serving the
         Corporation,  and such rights may be equivalent  to, or greater or less
         than, those set forth in this Article."

         Section  145 of the  General  Corporation  Law of the State of Delaware
generally  provides  that a corporation  may  indemnify  any director,  officer,
employee  or agent  against  expenses,  judgements,  fines and  amounts  paid in
settlement in connection  with any action  against him by reason of his being or
having been such a  director,  officer,  employee or agent,  if he acted in good
faith and in a manner he reasonably believed to be in or not opposed to the best
interests of the corporation  and, with respect to any criminal  action,  had no
reasonable cause to believe his conduct was unlawful.  No indemnification  shall
be made,  however,  if he is adjudged liable for negligence or misconduct in the
performance of his duty to the corporation, unless a court determines that he is
nevertheless  entitled to indemnification.  If he is successful on the merits or
otherwise in defending the action,  the  corporation  must indemnify him against
expenses  actually and  reasonably  incurred by him.  Article 5 of the Company's
By-Laws provides indemnification as follows:

                  "Reference  is made to Section  145 of and any other  relevant
         provisions  of the General  Corporation  Law of the State of  Delaware.
         Particular reference is made to the class of persons hereinafter called
         "Indemnitees",  who  may  be  indemnified  by  a  Delaware  corporation
         pursuant to the provisions of such Section 145, namely,  any person, or
         the heirs, executors, or administrators of such person, who was or is a
         party or is threatened to be made a party to any threatened, pending or
         completed  action,  suit,  or  proceeding,   whether  civil,  criminal,
         administrative,  or  investigative,  by  reason  of the fact  that such
         person  is or was a  director,  officer,  employee,  or  agent  of such
         corporation or is or was serving at the request of such  corporation as
         a  director,  officer,  employee,  or  agent  of  another  corporation,
         partnership, joint venture, trust, or other enterprise. The Corporation
         shall, and is hereby obligated to, indemnify the Indemnitees,  and each
         of them, in each and every situation where the Corporation is obligated
         to  made  such  indemnification  pursuant  to the  aforesaid  statutory
         provisions.  The Corporation shall indemnify the Indemnitees,  and each
         of  them,  in each and  every  situation  where,  under  the  aforesaid
         statutory  provisions,   the  Corporation  is  not  obligated,  but  is
         nevertheless permitted or empowered,  to make such indemnification,  it
         being understood that, before making such  indemnification with respect
         to any situation covered under this sentence, (i) the Corporation shall
         promptly make or cause to be made, by any of the methods referred to in
         Subsection (d) of such Section 145, a determination  as to whether each
         Indemnitee  acted in good faith and in a manner he reasonably  believed
         to be in, or not opposed  to, the best  interests  of the  Corporation,
         and,  in  the  case  of  any  criminal  action  or  proceeding,  had no
         reasonable cause to believe that his

                                      II-2

<PAGE>



         conduct was unlawful,  and (ii) that no such  indemnification  shall be
         made unless it is determined that such  Indemnitee  acted in good faith
         and in a manner he reasonably believed to be in, or not opposed to, the
         best  interests  of the  Corporation,  and, in the case of any criminal
         action or  proceeding,  had no  reasonable  cause to  believe  that his
         conduct was unlawful."

Item 16. Exhibits

         The following  documents have been previously filed as Exhibits and are
incorporated  herein  by  reference  except  those  exhibits  indicated  with an
asterisk which are filed herewith:

      Exhibit No.           Description

         3.1      Certificate  of  Incorporation,  as amended,  incorporated  by
                  reference  to Exhibit  No. 3.1 of the  Company's  Registration
                  Statement on Form SB-2 [Reg.  No. 33- 86138] filed November 9,
                  1994.
         3.2      By-laws of Registrant incorporated by reference to Exhibit No.
                  3.2 of the Company's Registration Statement on Form SB-2 [Reg.
                  No. 33-86138] filed November 9, 1994.
         5*       Opinion of  Sullivan &  Worcester  LLP  regarding  legality of
                  shares registered hereunder
         10.1     Form of Securities  Purchase Agreement between the Company and
                  Investors in the April Offering,  incorporated by reference to
                  Exhibit 10.1 of the Company's Current Report on Form 8-K filed
                  May 5, 1997
         10.2     Form of Registration  Rights Agreement between the Company and
                  Investors in the April Offering  incorporated  by reference to
                  Exhibit 10.2 of the Company's Current Report on Form 8-K filed
                  May 5, 1997
         10.3     Form of  Convertible  Note due October  1998  incorporated  by
                  reference to Exhibit 10.3 of the Company's  Current  Report on
                  Form 8-K filed May 5, 1997
         10.4     Form  of  Common  Stock  Purchase   Warrant   incorporated  by
                  reference to Exhibit 10.4 of the Company's  Current  Report on
                  Form 8-K filed May 5, 1997
         23.1*    Consent  of  Wolf  &   Company,   P.C.,   independent   public
                  accountants
         23.2*    Consent of Sullivan & Worcester LLP (included in Exhibit 5)

Item 17. Undertakings

(a)      The undersigned Registrant hereby undertakes:

         (1)      To file,  during any period in which offers or sales are being
                  made,  a   post-effective   amendment  to  this   registration
                  statement:

                  (i)      To  include  any   prospectus   required  by  section
                           10(a)(3) of the Securities Act of 1933;

                  (ii)     To  reflect  in the  prospectus  any  facts or events
                           arising after the effective date of the  registration
                           statement   (or  the   most   recent   post-effective
                           amendment  thereof)  which,  individually  or in  the
                           aggregate,  represent  a  fundamental  change  in the
                           information set forth in this registration statement.
                           Notwithstanding   the  foregoing,   any  increase  or
                           decrease  in volume  of  securities  offered  (if the
                           total dollar value of  securities  offered  would not
                           exceed that which was registered)

                                      II-3

<PAGE>



                           and any  deviation  from  the low or high  end of the
                           estimated  maximum offering range may be reflected in
                           the form of  prospectus  filed  with  the  Commission
                           pursuant to Rule  424(b)  (Section  230.424(b)  of 17
                           C.F.R.) if, in the  aggregate,  the changes in volume
                           and price  represent no more than a 20% change in the
                           maximum  aggregate  offering  price  set forth in the
                           "Calculation  of  Registration   Fee"  table  in  the
                           effective registration statement; and

                  (iii)    To include any material  information  with respect to
                           the plan of distribution not previously  disclosed in
                           this registration statement or any material change to
                           such information in this registration statement;

         provided,  however, that subparagraphs (i) and (ii) do not apply if the
         information  required to be included in a  post-effective  amendment by
         those  paragraphs  is contained in the  periodic  reports  filed by the
         Registrant  pursuant to Section 13 or Section  15(d) of the  Securities
         and  Exchange  Act of 1934 that are  incorporated  by reference in this
         registration statement.

         (2)      That for the purpose of  determining  any liability  under the
                  Securities  Act of 1933,  each such  post-effective  amendment
                  shall be deemed to be a new registration statement relating to
                  the  Securities  offered  herein,  and  the  offering  of such
                  Securities at that time shall be deemed to be the initial bona
                  fide offering thereof.

         (3)      To  remove  from  registration  by means  of a  post-effective
                  amendment  any of the Shares  being  registered  which  remain
                  unsold at the termination of the offering.

(b)      Insofar as indemnification for liabilities arising under the Securities
         Act of 1933 may be permitted  to  directors,  officers and  controlling
         persons of the  Registrant  pursuant to the  foregoing  provisions,  or
         otherwise,  the  Registrant has been advised that in the opinion of the
         Securities  and Exchange  Commission  such  indemnification  is against
         public   policy   as   expressed   in  such  Act  and  is,   therefore,
         unenforceable.

(c)      The undersigned registrant hereby undertakes that:

                  (1) For  purposes  of  determining  any  liability  under  the
         Securities  Act of  1933,  the  information  omitted  from  the form of
         prospectus  filed as part of this  Registration  Statement  in reliance
         upon  Rule  430A and  contained  in a form of  prospectus  filed by the
         Company  pursuant  to  Rule  424(b)(1)  or  (4)  or  497(h)  under  the
         Securities  Act  shall  be  deemed  to be  part  of  this  Registration
         Statement as of the time it was declared effective; and

                  (2) For  purposes  of  determining  any  liability  under  the
         Securities Act of 1933, each  post-effective  amendment that contains a
         form of prospectus shall be deemed to be a new  registration  statement
         relating to the securities  offered  therein,  and the offering of such
         securities  at that time  shall be deemed to be the  initial  bona fide
         offering thereof.




                                      II-4

<PAGE>



                                   SIGNATURES

         Pursuant to the requirements of the Securities Act of 1933, as amended,
the Registrant certifies that it has reasonable grounds to believe that it meets
all of the  requirements  for  filing  on  Form  S-3 and has  duly  caused  this
Registration  Statement to be signed on its behalf by the undersigned  thereunto
duly authorized, in the Town of Lynnfield, Commonwealth of Massachusetts, on May
22, 1997.

                                        GREENMAN TECHNOLOGIES, INC.


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

         Pursuant to the requirements of the Securities Act of 1933, as amended,
this Form S-3 relating to Common  Shares has been signed below on May o, 1997 by
the following persons in the capacities and on the dates indicated.

<TABLE>
<CAPTION>

       Signature                                    Title                                  Date
<S>                                       <C>                                           <C>

/s/ Maurice E. Needham                     Chief Executive Officer and                    May 22, 1997
Maurice E. Needham                         Chairman of the Board of Directors

/s/ James F. Barker                        President and Director                         May 22, 1997
James F. Barker

/s/ Joseph E. Levangie                     Chief Financial Officer, Secretary             May 22, 1997
Joseph E. Levangie                         and Director

/s/ Lew F. Boyd                            Director                                       May 22, 1997
Lew F. Boyd

</TABLE>





                                      II-5




                                                                       EXHIBIT 5



                                SULLIVAN & WORCESTER LLP
                                ONE POST OFFICE SQUARE
                              BOSTON, MASSACHUSETTS 02109
                                    (617) 338-2800
                                 FAX NO. 617-338-2880
    IN WASHINGTON, D.C.                                    IN NEW YORK CITY
1025 CONNECTICUT AVENUE, N.W.                              767 THIRD AVENUE
   WASHINGTON, D.C. 20036                              NEW YORK, NEW YORK 10017
      (202) 775-8190                                         (212) 486-8200
   FAX NO. 202-293-2275                                    FAX NO. 212-758-2151












                                                              May 22, 1997





GreenMan Technologies, Inc.
7 Kimball Lane, Building A
Lynnfield, Massachusetts 01940

Gentlemen:

         We are familiar with the  Registration  Statement on Form S-3 (the "S-3
Registration  Statement")  to which this  opinion is an exhibit,  to be filed by
GreenMan  Technologies,  Inc., a Delaware corporation (the "Company"),  with the
Securities and Exchange Commission under the Securities Act of 1933, as amended.
The S-3  Registration  Statement  relates to the  proposed  public  offering  by
certain  securityholders  of the  Company of a total of  2,577,890  shares  (the
"Shares")  of the  Company's  Common  Stock,  $.01 par value per share  ("Common
Stock"),  consisting of (i) up to 2,123,051  Shares  issuable upon conversion of
the Company's  Convertible  Notes due October 1998 (the  "Notes");  (ii) 300,000
Shares  issuable by the Company upon exercise of certain  common stock  purchase
warrants (the  "Warrants")  issued to the  purchasers of the Notes in connection
with the sale of the Notes;  and (iii)  154,839  Shares  issuable by the Company
upon exercise of Warrants  issued to the placement  agent in connection with the
sale of the Notes and the Warrants. The Registration Statement also relates to a
currently  indeterminate  number  of  shares of  Common  Stock  that may  become
issuable in accordance with the terms of the Notes and the Warrants.

         We have  acted  as  counsel  to the  Company  in  connection  with  the
preparation of the S-3 Registration  Statement,  and we have examined and relied
on  the  originals  or  copies,   certified  or  otherwise   identified  to  our
satisfaction  of all such  corporate  records  of the  Company  and  such  other
instruments   and  other   certificates  of  public   officials,   officers  and
representatives  of the  Company and such other  persons,  and we have made such
investigations of law, as we have deemed  appropriate as a basis for the opinion
expressed below. In making such examination, we


<PAGE>


GreenMan Technologies, Inc.
March 5, 1997
Page 2

have assumed the  genuineness of all  signatures,  the legal capacity of natural
persons,  the authenticity of all documents submitted to us as originals and the
conformity to the originals of all  documents  submitted to us as copies,  which
facts we have not  independently  verified.  As to various facts material to the
opinions set forth herein, we have relied without independent  verification upon
certificates  of public  officials and upon facts certified to us by officers of
the Company.  We express no opinion herein as to any laws other than the General
Corporation Law of the State of Delaware.

         Based upon the  foregoing,  we are of the opinion  that the Company has
corporate  power adequate for the issuance of the Shares  issuable in the manner
set forth in the S-3  Registration  Statement  and  offered  pursuant to the S-3
Registration Statement.  The Shares issuable upon conversion of the Notes or the
exercise of the  Warrants,  assuming  conversion  or exercise on the date hereof
(the  "Relevant  Shares") have been duly  authorized  and reserved for issuance.
Upon  conversion  of the Notes into  Shares and the  delivery  of such Shares in
accordance  with the terms of the Notes,  the Relevant  Shares so issued will be
validly issued, fully paid and non-assessable. Upon the exercise of the Warrants
into  Shares and  delivery of such  Shares in  accordance  with the terms of the
Warrants,  the Relevant Shares so issued will be validly issued,  fully paid and
non-assessable.

         We hereby  consent to the  filing of this  opinion as an exhibit to the
S-3 Registration Statement.

                                                 Very truly yours,


                                                 /s/  SULLIVAN & WORCESTER LLP
                                                 SULLIVAN & WORCESTER LLP







                                                                    Exhibit 23.1





                       CONSENT OF INDEPENDENT ACCOUNTANTS


We consent to the incorporation by reference in this  Registration  Statement of
GreenMan  Technologies,  Inc.  on Form  S-3 of our  report,  which  included  an
explanatory  paragraph  about  the  Company's  ability  to  continue  as a going
concern,  dated July 12, 1996,  appearing in the Annual Report on Form 10-KSB of
GreenMan  Technologies,  Inc.  for the fiscal year ended May 31, 1996 and to the
incorporation by reference of our reports dated July 28, 1995,  appearing in the
Final  Prospectus of GreenMan  Technologies,  Inc. dated  September 29, 1995. We
also  consent  to  the  reference  to us  under  the  heading  "Experts"  in the
Prospectus, which is part of this Registration Statement and to the reference to
us under the heading "Experts" in the Final Prospectus of GreenMan Technologies,
Inc. dated September 29, 1995.




                                                     /s/ WOLF & COMPANY, P.C.
                                                     WOLF & COMPANY, P.C.

Boston, Massachusetts
May 21, 1997





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