Document:

STARTECH
                              ENVIRONMENTAL CORP.
              INCORPORATED UNDER THE LAWS OF THE STATE OF COLORADO
     NUMBER                                                        SHARES

                                                               SEE REVERSE FOR
                                                             CERTAIN DEFINITIONS
                                                              CUSIP  855906 10 3

This Certifies That

Is The Owner Of

          FULLY PAID AND NON-ASSESSABLE COMMON SHARES, NO PAR VALUE OF

                       Startech Environmental Corporation

transferable on the books of the Corporation by the holder hereof in person or
by duly authorized attorney upon surrender of this Certificate properly
endorsed. This Certificate and the shares represented hereby are issued and
shall be subject to the Articles of Incorporation, to all of which the holder by
acceptance hereby assents.

     This Certificate is not valid unless countersigned by the Transfer Agent
and registered by the Registrar.

     In Witness Whereof, the Corporation has caused this Certificate to be
signed in facsimile by its duly authorized officers and the facsimile seal of
the Corporation to be duly affixed hereto.

     Dated:

/s/ Kevin M. Black                                    /s/ Joseph F. Longo
------------------                                    -------------------
Kevin M. Black, Secretary                             Joseph F. Longo, President

                       Startech Environmental Corporation
                                 Corporate Seal
                                    Colorado

Countersigned:
Corporate Stock Transfer, Inc.
370 - 17th Street, Suite 2350, Denver, Colorado  80202

<PAGE>

                       STARTECH ENVIRONMENTAL CORPORATION
                         Corporate Stock Transfer, Inc.
                           Transfer Fee: As Required

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     The following abbreviations, when used in the inscription on the face of
this certificate, shall be construed as though they were written out in full
according to applicable laws or regulations:

TEN COM - as tenants in common         UNIF GIFT MIN ACT - ....Custodian for....
                                                         (Cust.)         (Minor)
TEN ENT - as tenants by the entireties             under Uniform Gifts to Minors

JT Ten  - as joint tenants with right of           Act of.......................
          survivorship and not as tenants                       (State)
          in common

    Additional abbreviations may also be used though not in the above list.

For value received.........................hereby sell, assign and transfer unto

                     PLEASE INSERT SOCIAL SECURITY OR OTHER
                         IDENTIFYING NUMBER OF ASSIGNEE
                         ------------------------------

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

               Please print or type name and address of assignee

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

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

------------------------------------------------------------------------- Shares

of the Common Stock represented by the within Certificate and do hereby
irrevocably constitute and appoint

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

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

Attorney to transfer the said stock on the books of the within-named
Corporation, with full power of substitution in the premises.

Dated...................19.................

SIGNATURE GUARANTEED:                            X______________________________

                                                 X______________________________

     THE SIGNATURE TO THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME AS WRITTEN
UPON THE FACE OF THIS CERTIFICATE IN EVERY PARTICULAR, WITHOUT ALTERATION OR
ENLARGEMENT OR ANY CHANGE WHATSOEVER. THE SIGNATURE(S) MUST BE GUARANTEED BY AN
ELIGIBLE GUARANTOR INSTITUTION (Banks, Stockbrokers, Savings and Loan
Association and Credit Unions) WITH MEMBERSHIP IN AN APPROVED SIGNATURE
GUARANTEE MEDALLION PROGRAM.STARTECH
                              ENVIRONMENTAL CORP.
              INCORPORATED UNDER THE LAWS OF THE STATE OF COLORADO

           SERIES A CUMULATIVE CONVERTIBLE REDEEMABLE PREFERRED STOCK

     NUMBER                                                        SHARES

                                                               SEE REVERSE FOR
                                                             CERTAIN DEFINITIONS

This Certifies That

is the holder of

     fully paid and non-assessable shares of Series A Cumulative Convertible
                  Redeemable Preferred Stock, no par value of
                       Startech Environmental Corporation

(herein called the "Corporation"), transferable on the books of the Corporation
by the holder hereof in person or by duly authorized attorney upon surrender of
this Certificate properly endorsed. This Certificate and the shares represented
hereby are issued and shall be subject to the Articles of Incorporation, to all
of which the holder by acceptance hereby assents.

     The Corporation will furnish without charge to each stockholder who so
requests, a statement of the powers, designations, qualification, limitations or
restrictions of such preferences and/or right.

     Witness the seal of the Corporation and the signatures of its duly
authorized officers.

     Dated:

/s/ Kevin M. Black                                    /s/ Joseph F. Longo
------------------                                    -------------------
Kevin M. Black, Secretary                             Joseph F. Longo, President

                       Startech Environmental Corporation
                                 Corporate Seal
                                    Colorado

Countersigned:
Corporate Stock Transfer, Inc.
370 - 17th Street, Suite 2350, Denver, Colorado  80202
BY___________________________________
  Transfer Agent Authorized Signature

<PAGE>

                       STARTECH ENVIRONMENTAL CORPORATION
                         Corporate Stock Transfer, Inc.
                           Transfer Fee: As Required

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

     The following abbreviations, when used in the inscription on the face of
this certificate, shall be construed as though they were written out in full
according to applicable laws or regulations:

TEN COM - as tenants in common         UNIF GIFT MIN ACT - ....Custodian for....
                                                         (Cust.)         (Minor)
TEN ENT - as tenants by the entireties             under Uniform Gifts to Minors

JT Ten  - as joint tenants with right of           Act of.......................
          survivorship and not as tenants                       (State)
          in common

    Additional abbreviations may also be used though not in the above list.

For value received.........................hereby sell, assign and transfer unto

                     PLEASE INSERT SOCIAL SECURITY OR OTHER
                         IDENTIFYING NUMBER OF ASSIGNEE
                         ------------------------------

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

               Please print or type name and address of assignee

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

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

------------------------------------------------------------------------- Shares

of the Series A Cumulative Convertible Redeemable Preferred Stock represented by
the within Certificate and do hereby irrevocably constitute and appoint

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

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

Attorney to transfer the said stock on the books of the within-named
Corporation, with full power of substitution in the premises.

Dated...................19.................

SIGNATURE GUARANTEED:                            X______________________________

                                                 X______________________________

     THE SIGNATURE TO THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME AS WRITTEN
UPON THE FACE OF THIS CERTIFICATE IN EVERY PARTICULAR, WITHOUT ALTERATION OR
ENLARGEMENT OR ANY CHANGE WHATSOEVER. THE SIGNATURE(S) MUST BE GUARANTEED BY AN
ELIGIBLE GUARANTOR INSTITUTION (Banks, Stockbrokers, Savings and Loan
Association and Credit Unions) WITH MEMBERSHIP IN AN APPROVED SIGNATURE
GUARANTEE MEDALLION PROGRAM.WARRANT AGREEMENT
                                -----------------
                    To Purchase Shares of the Common Stock of
                       STARTECH Environmental Corporation,

The Holder shall have the right to receive one warrant for every two shares of
Series A 8.00% Convertible Preferred shares purchased by the holder in
conjunction with Company's Private Placement Memorandum issued to shareholder.

     THIS CERTIFIES THAT_________________________________________________ Or its
successors or assigns (the "Warrant holder" or "Holder"), is entitled, upon the
due exercise hereof, and subject to the terms and conditions hereof, at any time
after the date hereof, and subject to the provisions of paragraph 2 below,
before the close of business on August 31, 2001 ("Expiration Date"), to purchase
from STARTECH Environmental Corporation (the "Company") all or any part of fully
paid and nonassessable shares of Common Stock, no par value (the "Common Stock")
of the Company, upon surrender hereof, with the exercise form and warrant
certificate annexed hereto duly filled out, at the office of the Company or any
transfer agent for the Company's Common Stock, and upon simultaneous payment
therefore in cash or by certified or official bank check, payable to the order
of the Company in New York Clearing House funds, at the price of $15.00 per
share (the "Exercise Price"), if exercised on or before August 31, 2001.
Provided the average of the closing bid prices for the Common Stock for the
previous 30 trading days prior thereto is not at least $16.50 per share, then
the Warrants will not then expire: provided further, however, that any time
thereafter that the closing bid prices for the Common Stock for ten consecutive
trading days exceeds $16.50 per share, Startech will have the option, with
notice furnished by Startech on any such date, to cause, 30 days thereafter the
expiration of the Warrants. However, under no circumstances will the Warrants be
extended past August 31, 2004, at which time regardless of the stock price the
Warrants will expire.

     1. No resale of the Warrants or of any Underlying Stock will be made unless
such resale is registered pursuant to a Registration Statement filled by the
Company with the Securities and Exchange Commission (the "Commission") or exempt
from registration under the Securities Act of 1933, as amended (the "Act"). By
acceptance of this Certificate, the Warrant Holder agrees, for himself and all
subsequent holders, that prior to making any disposition of any Warrants or of
any Common Stock purchasable upon the exercise thereof ("Underlying Stock"), the
Holder of the Warrants evidenced by this Certificate shall give written notice
to the Company describing briefly the proposed disposition; and no such
disposition shall be made unless and until ( i ) the Company has notified such
holder that, in the opinion of counsel satisfactory to it, no Registration
Statement and no other action under the Act is required with respect to such
disposition (which opinion may be conditioned upon the transferee's assuming the
Warrant holder's obligation hereunder); or (ii) a Registration Statement has
been filed by the Company and declared effective by the Commission or other such
action has been taken.

     2. Unless this Warrant and payment are tendered as herein provided before
the close of business on the Expiration Date, this Warrant will become wholly
void and all rights evidenced hereby will terminate.

     3. Subsequent to the provisions of paragraph 1 above, this Warrant may be
exchanged for a number of shares of Common Stock of the Company as are
purchasable upon the exercise of this Warrant, upon surrender hereof at the
office of the Company or any transfer agent of the Company's Common Stock and
written instructions as to the exchange.

     If this Warrant is exercised for less than all the shares purchasable upon
the exercise hereof, the Holder shall be entitled to receive Warrants of the
same tenor as this Warrant for the purchase in the aggregate of the number of
shares in respect of which this Warrant shall not have been exercised.

<PAGE>

     4. The Exercise price per Share and the number of shares of Common Stock of
the Company issuable pursuant to such exercise is subject to adjustment as
follows:

     (a) In case the Company shall at any time declare a dividend on the
outstanding shares of Common Stock in shares of its Common Stock, then the
Exercise Price, and the number and kind of shares receivable upon exercise, in
effect at the time of such dividend shall be proportionately adjusted so that
the holder of any Warrant exercised after such time shall be entitled to receive
the aggregate number and kind of shares which if such Warrant had been exercised
immediately prior to such time, he or she would have owned upon such exercise
and been entitled to receive by virtue of such dividend.

     (b) In any case the Company shall at any time subdivide or combine the
outstanding shares of the Common Stock, the share exercise price initial or
adjusted, in effect immediately prior to such subdivision or combination shall
forthwith be proportionately decreased in the case of subdivision or increased
in the case of combination.

     (c) In case of any capital reorganization, sale of substantially all the
assets of the Company, or any reclassification of the shares of Common Stock of
the Company, or in case of any consolidation with or merger of the Company into
or with another corporation, then as a part of such reorganization sale
reclassification, consolidation or merger, as the case may be, provision shall
be made so that the registered owner of the Warrants evidenced hereby shall have
the right thereafter to receive upon the exercise thereof the kind and amount of
shares of stock or other securities or property which he would have been
entitled to receive. If immediately prior to such reorganization,
reclassification, consolidation or merger, he had held the number of shares of
Common stock which were then issuable upon the exercise of the Warrants
evidenced hereby, to the end that the provisions set forth (including provisions
with respect to adjustments of the Exercise Price) shall thereafter be
applicable, as nearly as reasonably may be, in relation to any shares of stock
or other property thereafter deliverable upon the exercise of such Warrants.

     (d) If the Company at any time makes any spin-off, split-up, split-off or
distribution of assets upon or with respect to its Common Stock, as a
liquidating or partial liquidating dividend, spin-off, or by way of return of
capital, or other than as dividend payable out of earnings or any surplus
legally available for dividends under the laws of the State of Colorado, the
holder of each Warrant then outstanding shall, upon the exercise of the Warrant,
receive, in addition to the shares of Common Stock then issuable on exercise of
the Warrant, the amount of such assets (or, at the option of the Company, a sum
equal to the value thereof at the time of the distributions) which would have
been payable to such holder had he or she exercised the Warrant immediately
prior to the record date for such distribution.

     (e) No adjustment of the Exercise Price per Share shall be made if the
amount of such adjustment shall be less than $.05 per share. When any adjustment
is required to be made in the Exercise Price Per Share, the number of shares of
Common Stock issuable shall be determined as provided for in paragraph (f)
hereof. No fractional shares of Common Stock shall be issued upon the exercise
of Warrants evidenced hereby, but in lieu thereof the Company shall pay to the
order of the holder of such Warrants an amount in cash equal to the same
fraction of the Exercise Price of one share of Common Stock on the date of
exercise.

     (f) Whenever the Exercise price Per Share is adjusted as provided above,
the number of shares of Common Stock Shares purchasable upon exercise of this
Warrant immediately prior to such adjustment shall be increased, effective
simultaneously with such adjustment, by a number of shares of Common Stock
computed by multiplying such number of shares of Common Stock by a fraction, the
numerator of which is the Exercise Price per Share in effect immediately prior
to such adjustment and the denominator of which is the Exercise Price per Share
in effect upon such adjustment, and the number of shares of Common Stock arrived
at by making said computation shall be added to the number of shares of Common
Stock issuable upon exercise of the Warrant immediately prior to such

<PAGE>

adjustment. The total number of shares arrived at by making the computation
provided for in the immediately preceding sentence shall thereupon be the number
of shares of Common Stock issuable upon exercise Price Per Share, initial or
adjusted, the Company shall forthwith determine the new Exercise Price Per
Share, and (a) prepare a statement describing in reasonable detail the method
used in arriving at the new Exercise price per Share; and (b) cause a copy of
such statement to be mailed to the registered owner of the Warrants evidenced
hereby as of a date within twenty (20) days after the date when the circumstance
giving rise to the adjustments occurred.

     5. As soon as practicable after the exercise hereof, the company shall
deliver a certificate or certificates for the number of full shares of Common
Stock issuable upon such exercise, all of which shall be fully paid and
nonassessable, to the person or persons entitled to receive the same provided

     No sale, offer to sell or transfer of these Shares or of this Certificate,
     or of any shares or other securities issued in exchange for or in respect
     of such shares, shall be made unless a Registration Statement under the
     Securities Act of 1933, as amended, with respect to such shares, is in
     effect or an exemption from the registration requirements of such Act is
     applicable to such shares.

Dated: ________________1999/2000            STARTECH Environmental Corp.
                                            By: ________________________________

ATTEST:_________________________

<PAGE>

                                  EXERCISE FORM

The undersigned irrevocably exercises this Warrant to the extent of
____________shares of the Common Stock of STARTECH Environment Corp., called for
hereby, and hereby makes payment thereof, all at the price and on the terms and
conditions specified herein.

                                                ________________________________
                                                Signature

                                                ________________________________
                                                Name

                                                ________________________________
                                                Street/Mailing Address

                                                ________________________________
                                                City   State   Zip

                                                ________________________________
                                                Date

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