Document:

Exhibit 4.20

                                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 one share of
Common share purchased by the holder in conjunction with Company's Private
Placement Memorandum issued August 11, 2005.

           THIS CERTIFIES THAT Nutmeg Environmental, L.P. Or its successors or
           assigns (the "Warrant holder" or "Holder"), is entitled to 92,572
           warrants 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 10 , 2008 ("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 agreement 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 equal to the following
           traunches. 1/3 of the warrants granted shall be exercised at a price
           per share of $2.00 above the closing price (the "Exercise Price"),
           1/3 of the warrants granted shall be exercised at a price per share
           of $4.00 above the closing price (the "Exercise Price") and the final
           1/3 of the warrants granted shall be exercised at a price per share
           of $6.00 above the closing price (the "Exercise Price").

<PAGE>

          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 agreement, 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 agreement 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 stock dividend
or stock split 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.

<PAGE>

             (d) If the Company at any time makes any spin-off, 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
adjustment. The total number of shares arrived at by making the computation

<PAGE>

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: ________________2004                   Startech Environmental Corp.

                                              By: ____________________________

Warrant Holder: ______________________________________

Address: _____________________________________________

City: ________________________________________________

State: _____________________________ Zip Code: _______

<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

                                    DateExhibit 4.21

                                   EXHIBIT "G"

THIS WARRANT, THE SECURITIES REPRESENTED HEREBY AND ANY SECURITIES ACQUIRED UPON
THE EXERCISE OF THIS WARRANT HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT
OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR ANY STATE SECURITIES LAWS, AND
NEITHER SUCH SECURITIES NOR ANY INTEREST THEREIN MAY BE OFFERED, SOLD, PLEDGED,
ASSIGNED OR OTHERWISE TRANSFERRED UNLESS (1) A REGISTRATION STATEMENT WITH
RESPECT THERETO IS EFFECTIVE UNDER THE SECURITIES ACT AND ANY APPLICABLE STATE
SECURITIES LAWS OR (2) THE COMPANY HAS RECEIVED AN OPINION OF COUNSEL REASONABLY
ACCEPTABLE TO THE COMPANY THAT AN APPLICABLE EXEMPTION FROM REGISTRATION
THEREUNDER IS AVAILABLE.

                                     WARRANT

                       To Purchase Shares of Common Stock

                                       of

                       STARTECH ENVIRONMENTAL CORPORATION
                            (a Colorado corporation)

                            ISSUE DATE [12/11], 2006

         THIS WARRANT CERTIFIES THAT, for value received, 88 DANBURY ROAD LLC, a
Connecticut limited liability company, or its successors or assigns (hereinafter
called the "Holder") is entitled to purchase from Startech Environmental
Corporation, a Colorado corporation (the "Company") during the Term (as defined
below), the Warrant Shares (as defined below), at the Exercise Price (as defined
below) payable in the manner specified herein. This Warrant is the Warrant
referred to in the Lease Agreement (as amended, modified or supplemented from
time to time, the "Lease Agreement") dated as of [12/11], 2006 between the
Company and the Holder. The rights of the Holder with respect to this Warrant
and the exercise of this Warrant shall be subject to the provisions, limitations
and restrictions herein contained.

         DEFINITIONS. Capitalized terms used in this Warrant without definition
or reference to another agreement shall have the meanings assigned to such terms
in the Purchase Agreement. As used in this Warrant, the following terms shall
have the meanings indicated herein and defined below:

         "Common Stock" means the common stock, no par value, of the Company.

<PAGE>

         "Exercise Price" means $3.00 per share of Common Stock.

         "Expiration Date" means [12/11], 2011, or, if such date is a Saturday,
Sunday or legal holiday, the next succeeding business day.

         "Person" means any individual, trustee, corporation, general
partnership, limited partnership, limited liability company, joint stock
company, trust, unincorporated organization, bank, business association, firm,
joint venture, or governmental authority.

         "Securities Act" means the Securities Act of 1933, as amended, and the
rules and regulations promulgated thereunder.

         "Term" means the period beginning on the Issue Date set forth above and
ending on the Expiration Date at 5:00 p.m. (EST), on such date.

         "Warrant" means this Warrant, as the same may be amended, modified or
supplemented from time to time in accordance with the terms hereof.

         "Warrant Shares" means Two Hundred Thousand (200,000) restricted shares
of Common Stock.

         "Warrant Rights" means the rights of the Holder to purchase Warrant
Shares upon exercise of this Warrant.

         EXERCISE OF WARRANT.
         -------------------

                  Right to Exercise. At any time during the Term, the Holder may
exercise this Warrant to purchase all, or any portion, of the Warrant Shares. If
this Warrant has not been exercised by the Holder prior to the expiration of the
Term, the Warrant Rights and this Warrant shall become void as of such time.

                  Procedures for Exercise of Warrant. To exercise this Warrant,
the Holder shall deliver to the Company at its office referred to in Section 6
hereof; at any time during the Term, a notice of exercise in the form of the
subscription form (the "Subscription Form") attached hereto as Exhibit A, and
the payment of an amount equal to the product of (x) the Exercise Price and (y)
the number of Warrant Shares for which the Warrant is being exercised (the
"Aggregate Exercise Price"). Payment of the Aggregate Exercise Price shall be
made in cash or by certified or official bank check payable to the order of the
Company in the amount of the Aggregate Exercise Price. The Holder shall for all
purposes be deemed to have become the holder of such Warrant Shares upon the
exercise of the Warrant Rights pursuant hereto, irrespective of the date of
delivery of any certificate, instrument or other documentation evidencing the
purchase and issuance of the Warrant Shares.

                  Legends. The certificates evidencing any Warrant Shares issued
upon exercise of this Warrant shall bear the following legend:

                  THE SECURITIES REPRESENTED THIS CERTIFICATE HAVE NOT BEEN
                  REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE
                  "SECURITIES ACT"), OR ANY STATE SECURITIES LAWS, AND NEITHER
                  SUCH SECURITIES NOR ANY INTEREST THEREIN MAY BE OFFERED, SOLD,
                  PLEDGED, ASSIGNED OR OTHERWISE TRANSFERRED UNLESS (1) A
                  REGISTRATION STATEMENT WITH RESPECT THERETO IS EFFECTIVE UNDER

                                       2

<PAGE>

                  THE SECURITIES ACT AND ANY APPLICABLE STATE SECURITIES LAWS OR
                  (2) THE COMPANY HAS RECEIVED AN OPINION OF COUNSEL REASONABLY
                  ACCEPTABLE TO THE COMPANY THAT AN APPLICABLE EXEMPTION FROM
                  REGISTRATION THEREUNDER IS AVAILABLE.

         Covenants of the Company.

                  Warrant Interests. The Company covenants and agrees that the
Company shall at all times reserve and keep available out of its authorized but
unissued shares of Common Stock, such shares of Common Stock as shall be
sufficient to provide for the exercise of the Warrant Rights represented by this
Warrant.

                  Cancellation and Restriction of Warrants. The Company
covenants and agrees that it will cancel all Warrants surrendered to it for the
purpose of exercise, exchange, substitution or transfer, and no Warrant shall be
issued in lieu thereof except as expressly permitted by the provisions of this
Warrant. The Company further covenants and agrees that it shall cancel and
retire any Warrant purchased or acquired by the Company otherwise than upon the
exercise thereof.

         OWNERSHIP.
         ----------

                  Transfer of Warrants. This Warrant and the Warrant Rights, or
any portion thereof, may not be sold, assigned, pledged, encumbered, disposed of
or otherwise transferred (each, a "Transfer") by the Holder to any Person or
Persons without the prior written consent of the Company and unless (1) a
registration statement with respect thereto is in effect under the Securities
Act and any applicable state securities laws or (2) the Company has received an
opinion of counsel reasonably acceptable to the Company that an application
exemption from registration thereunder is available. To be effective, any such
Transfer shall be registered with the Company by submission to it of this
Warrant, together with a notice of transfer in the form of attached hereto as
Exhibit B (the "Transfer Form"), duly completed and executed. Within ten (10)
Business Days after the Company's receipt of this Warrant, together with the
Transfer Form so completed and executed, the Company will issue and deliver to
the transferee a new Warrant having the same terms and provisions as this
Warrant, which the Company will register in the new Holder's name. Upon the due
delivery of this Warrant for Transfer, the transferee shall be deemed for all
purposes to have become the Holder of the new Warrant, effective immediately
prior to the close of business on the date of such delivery, irrespective of the
date of actual delivery of such new Warrant.

                  Ownership of This Warrant. The Company may deem and treat the
Person in whose name this Warrant is registered as the sole holder and owner
hereof (notwithstanding any notations of ownership or writing hereon made by
anyone other than the Company) for all purposes and shall not be affected by any
notice to the contrary.

                                       3

<PAGE>

                  Loss and Replacement; Cancellation; Tax and Other Amounts.
Upon receipt by the Company of evidence reasonably satisfactory to it of the
loss, theft or destruction of this Warrant, and upon surrender of this Warrant
if mutilated, the Company will make and deliver a new Warrant of like tenor, in
lieu of this Warrant. This Warrant shall be promptly canceled by the Company
upon the surrender hereof in connection with any transfer, sale or other
disposition or replacement of this Warrant. The Holder shall pay all taxes,
reasonable expenses and other charges payable in connection with any transfer,
sale or other disposition or replacement of this Warrant.

         Adjustment of Exercise Price and Number of Warrant Shares. The number
Warrant Shares issuable upon exercise of this Warrant and the Exercise Price
shall be subject to adjustment from time to time as follows:

                  Subdivisions, Combinations and Other Issuances. If the Company
shall at any time after the date hereof and prior to the expiration of the Term
subdivide the shares of Common Stock or any other class of equity securities
that may be acquired upon exercise of this Warrant, by split-up or otherwise, or
combine such shares or interests, or issue additional shares or interests of any
such class as a dividend with respect to any shares or interests of any such
class, the number of shares of Common Stock issuable on the exercise of this
Warrant shall forthwith be proportionately increased in the case of a
subdivision or stock dividend, or proportionately decreased in the case of a
combination. Appropriate adjustments shall also be made to the Exercise Price
payable for the Warrant Shares, but the aggregate purchase price payable for the
total number of Warrant Shares purchasable under this Warrant (as adjusted)
shall remain the same. Any adjustment under this Section 5.1 shall become
effective at the close of business on the date the subdivision or combination
becomes effective, or as of the record, date of such dividend, or in the event
that no record date is fixed, upon the making of such dividend.

                  Reorganization, Reclassification, Merger, Consolidation or
Disposition of Assets. In case the Company shall reorganize its capital,
reclassify its capital stock (other than as set forth in Section 5.1), merge
with or into or consolidate with another corporation or other entity (where the
Company is not the surviving corporation or where there is a change in or
distribution with respect to any class of equity securities of the Company), or
sell, transfer or otherwise dispose of all or substantially all its property,
assets or business to another corporation or other entity and, pursuant to the
terms of such reorganization, reclassification, merger, consolidation or
disposition of assets, equity securities of the successor or acquiring entity,
or any cash, shares of stock or other securities or property of any nature
whatsoever (including warrants or other subscription or purchase rights) in
addition to or in lieu of capital stock of the successor or acquiring entity
("Other Property"), to be received by or distributed to the holders of shares of
Common Stock, then the Holder shall have the right thereafter to receive, upon
exercise of this Warrant, the number of equity interests of the successor or
acquiring entity or of the Company, if it is the surviving corporation, and
Other Property receivable upon or as a result of such reorganization,
reclassification, merger, consolidation or disposition of assets by a Holder of
the number of equity securities for which this Warrant is exercisable
immediately prior to such event. In case of any such reorganization,
reclassification, merger, consolidation or disposition of assets, the successor
or acquiring entity (if other than the Company) and, if an entity different from

                                       4

<PAGE>

the successor or acquiring entity, the entity whose equity securities or Other
Property the holders of the equity securities are entitled to receive as a
result of such transaction, shall expressly assume the due and punctual
observance and performance of each and every covenant and condition of this
Warrant to be performed and observed by the Company and all the obligations and
liabilities hereunder, subject to such modifications as may be deemed
appropriate (as determined in good faith by resolution of the board of directors
of the Company) in order to provide for adjustments of Warrant Shares for which
this Warrant is exercisable which shall be as nearly equivalent as practicable
to the adjustments provided for in this Section 5.2. For purposes of this
Section 5.2, "equity securities of the successor or acquiring entity" shall
include capital stock or equity securities of such entity of any class which is
not preferred as to dividends or assets over any other class of capital stock or
equity securities of such entity and which is not subject to redemption and
shall also include any evidences of indebtedness, shares of capital stock or
other securities which are convertible into or exchangeable for any such capital
stock, either immediately or upon the arrival of a specified date or the
happening of a specified event and any warrants or other rights to subscribe for
or purchase any such capital stock. The foregoing provisions of this Section 5.2
shall similarly apply to successive reorganizations, reclassifications, mergers,
consolidations or disposition of assets.

                  No Adjustments. The foregoing notwithstanding, no adjustment
of the Exercise Price shall be made if the amount of such adjustment shall be
less than five cents ($.05) per share.

                  Notice of Adjustment. When any adjustment is required to be
made in the number or kind of shares or interests purchasable upon exercise of
the Warrant, or in the exercise Price, the Company shall promptly notify in
writing the Holder of such event.

         Notices. All notices, consents, waivers, and other communications under
this Warrant must be in writing and will be deemed to have been duly given when
(a) delivered by hand (with written confirmation of receipt), (b) sent by fax
(with written confirmation of receipt), or (c) when received by the addressee,
if sent by a nationally recognized overnight delivery service (receipt
requested), in each case to the appropriate addresses or fax numbers specified
below for to such other address, attention or fax number as each of the Company
or the Holder may designate by notice to the other given in accordance with this
Section 6):

         If to the initial Holder:

              c/o Furst Properties, LLC
              14648 N. Scottsdale Road, Suite 345
              Scottsdale, AZ 85254
              Attention:  Beverly Eernisse
              Facsimile:  (480) 951-0665

                                       5
<PAGE>

         With a copy to:

              c/o George Vogel
              685 Post Road
              Darien, CT 06820
              Attention:  George Vogel
              Facsimile:  (203) 655-2221

         If to the Company:

          (Prior to the Company taking possession of the premises set forth in
          the Lease Agreement):

                  Startech Environmental Corporation
                  15 Old Danbury Road, Suite 203
                  Wilton, CT 06897
                  Attention:  Chief Financial Officer
                  Facsimile:  (203)

          (After the Company takes possession of the premises set forth in the
          Lease Agreement):

                  Startech Environmental Corporation
                  88 Danbury Road
                  Wilton, CT 06897
                  Attention:  Chief Financial Officer
                  Facsimile:  (203)

                  With a copy to:

                  Kramer Levin Naftalis & Frankel LLP
                  1177 Avenue of the Americas
                  New York, NY 10036
                  Attention:  Scott S. Rosenblum, Esq.
                  Facsimile:  (212) 715-8000

         No Rights as a Stockholder; Limitation of Liability. Unless and until
exercised and except as otherwise provided herein, nothing contained in this
Warrant shall be construed as conferring upon the Holder the right to vote or to
receive distributions or to consent or to receive notice as a stockholder in
respect of any meeting of stockholders of the Company for any matter, or any
rights whatsoever as a stockholder of the Company. No provision hereof, in the
absence of affirmative action by the Holder to purchase the Warrant Shares, and
no mere enumeration herein of the rights or privileges of the Holder, shall give
rise to any liability of the Holder for the Exercise Price hereunder or as a
stockholders of the Company, whether such liability is asserted by the Company,
its equity holders or by creditors of the Company.

                                       6
<PAGE>

         Entire Agreement; Amendments. This Warrant, together with the Lease
Agreement and the Exhibits attached hereto, sets forth the entire understanding
of the Company and the Holder with respect to the subject matter hereof,
supersedes all existing agreements, whether oral or written, and may be modified
only by a written instrument duly executed by the Company and the Holder. To the
extent there is any conflict between this Warrant and the Lease Agreement, the
terms of this Warrant shall control and govern.

         Assignments; Successors; No Third Party Rights. The Company may not
assign or transfer (other than by operation of law) any of its rights or
obligations under this Warrant without the prior written consent of the Holder.
The Holder may assign or Transfer this Warrant or its rights and obligations
hereunder only in accordance with Section 4.1 hereof. Subject to the two
preceding sentences, this Warrant will apply to, be binding in all respects
upon, and inure to the benefit of the successors, heirs, personal
representatives, executors and permitted assigns of the Company or the Holder,
as applicable. Nothing expressed or referred to in this Warrant will be
construed to give any Person other than the Company or the Holder any legal or
equitable right, remedy or claim under or with respect to this Warrant or any
provision of this Warrant.

         Governing Law. This Warrant, and any disputes arising hereunder or
relating to the transactions contemplated hereby, shall be governed, including
as to validity, interpretation and effect, by the internal laws of the State of
Connecticut, without regard to the principles of conflict of laws.

         Failure or Indulgence Not Waiver; Remedies Cumulative. No failure or
delay on the part of the Company or any Holder in the exercise of any right
hereunder shall impair such right or be construed to be a waiver of, or
acquiescence in, any breach of any representation, warranty, covenant or
agreement herein, nor shall any single or partial exercise of any such right
preclude other or further exercise thereof or of any other right. All rights and
remedies existing under this Warrant are cumulative to, and are exclusive of,
any rights or remedies otherwise available, whether by contract, at law, in
equity or otherwise.

         Severability. It is expressly understood and agreed that although the
Company and the Holder consider the restrictions contained in this Warrant to be
reasonable and necessary for the purpose of, among other things, preserving the
goodwill, proprietary rights and going concern value of the Company, if any
provision of this Warrant or the application of any such provision to the
Company, the Holder or any circumstance shall be determined by either any court
of competent jurisdiction to be invalid or unenforceable to any extent, the
remainder of this Warrant, or the application of such provision to the Company
or the Holder or circumstance other than those to which it is so determined to
be invalid or unenforceable, shall not be affected thereby, and each provision
hereof shall be enforced to the fullest extent permitted by law. If the final
judgment of a court of competent jurisdiction declares that any term or
provision hereof is invalid or unenforceable, the Company and the Holder hereto
agree that the court making the determination of invalidity or unenforceability
shall have the power to reduce the scope, duration or area of the term or
provision, or to delete specific words or phrases, and to replace any invalid or
unenforceable term or provision with a term or provision that is valid and
enforceable and that comes closest to expressing the intention of the invalid or
unenforceable term or provision, and this Warrant shall be enforceable as so
modified.

                                       7
<PAGE>

         Certain Interpretive Matters.
         -----------------------------

         (a) Unless the context otherwise requires, (i) "or" is disjunctive but
not necessarily exclusive, (ii) words in the singular include the plural and
vice versa, and (iii) the use in this Warrant of a pronoun in reference to the
Company or the Holder includes the masculine, feminine or neuter, as the context
may require.

         (b) No provision of this Warrant will be interpreted in favor of or
against, either of the Company or the Holder by reason of the extent to which
either the Company or the Holder or their respective counsel participated in the
drafting thereof or by reason of the extent to which any such provision is
inconsistent with any prior draft hereof and no rule of strict construction will
be applied against either the Company or the Holder.

         Waiver of Jury Trial. THE COMPANY AND THE HOLDER EACH IRREVOCABLY AND
UNCONDITIONALLY WAIVE, TO THE FULLEST EXTENT PERMITTED BY LAW, ALL RIGHTS TO
TRIAL BY JURY IN ANY ACTION, SUIT OR PROCEEDING ARISING OUT OF OR RELATING TO
THIS WARRANT, THE WARRANT PURCHASE AGREEMENT, OR THE TRANSACTIONS CONTEMPLATED
HEREBY OR THEREBY, INCLUDING WITHOUT LIMITATION, ANY COUNTERACTION OR
COUNTERCLAIM, WHETHER IN CONTRACT, STATUTE, TORT (INCLUDING, WITHOUT LIMITATION,
NEGLIGENCE) OR OTHERWISE.

         Further Assurances. Each of the Company and the Holder shall execute
and deliver such documents, instruments and agreements and take such further
actions as may be reasonably required or desirable to carry out the provisions
of this Warrant (to the extent provided for herein) and the transactions
contemplated hereby, and the Company and the Holder shall cooperate with each
other in connection with the foregoing.

         Specific Performance. The Company acknowledges that irreparable damage
would occur to the Holder in the event that any of the provisions of this
Warrant were not performed by the Company in accordance with their specific
terms or were otherwise breached by the Company, and that money damages would
not provide an adequate remedy to the Holder. It is accordingly agreed that the
Holder shall be entitled to an injunction and other equitable remedies to
prevent breaches by the Company of this Warrant and to enforce specifically the
terms and provisions hereof in any court of the United States or any state
thereof or any other court having jurisdiction, this being in addition to any
other remedy to which the Holder may be entitled at law or in equity or
otherwise.

         Benefits of this Warrant. Nothing in this Warrant shall be construed to
give to any Person, other than the Company and the Holder, any legal or
equitable right, remedy or claim under this Warrant.

                                       8
<PAGE>

         Captions. The captions used herein are included for convenience of
reference only and shall be ignored in the construction or interpretation
hereof.

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

         Certain Costs and Expenses. Except as otherwise set forth in this
Warrant or any other written agreement between the Company and the Holder, all
fees and expenses incurred in connection with the negotiation, preparation,
execution, exercise and performance of this Warrant (including, without
limitation, fees and expenses of legal counsel, accountants and other
professionals) shall be paid by the Person incurring such fees or expenses. The
Company shall bear any and all taxes, duties or assessments associated with the
issuance of this Warrant and/or issuance of the Warrant Shares upon exercise of
this Warrant.

                            [Signature page follows]

                                       9
<PAGE>

         IN WITNESS WHEREOF, the Company has caused this Warrant to be signed by
its duly authorized officers as of the Issue Date.

                                STARTECH ENVIRONMENTAL CORPORATION

                                By:
                                         ----------------------------
                                Name:
                                         ----------------------------
                                Title:
                                         ----------------------------

Accepted and agreed ea of the
Issued Date:

88 DANBURY ROAD LLC

By:
           ---------------------------------
Name:
           ---------------------------------
Title:
           ---------------------------------

<PAGE>

                                    EXHIBIT A

                                SUBSCRIPTION FORM

                (To be executed if Holder desires to exercise its
                   Warrant Rights with respect to the Warrant)

To:      Startech Environmental Corporation (the "Company")
         Attn:  Chief Financial Officer

Reference is hereby made to the Warrant dated [_____________], 2006 (as amended,
modified or supplemented from time to time, the "Warrant") issued by the Company
to the undersigned. Capitalized terms used herein and not defined have the
meanings assigned to such terms in the Warrant. The undersigned hereby
irrevocably elects to exercise its Warrant Rights in respect of the Warrant to
purchase the number of Warrant Shares set forth below.

1.       The undersigned hereby elects to purchase the Warrant Shares set forth
         below and tenders herewith payment of the Aggregate Exercise Price for
         such Warrant Shares in full.

2.       In exercising this Warrant, the undersigned, hereby confirms and
         acknowledges that the Warrant Shares set forth below are being acquired
         solely for the account of the undersigned for investment and not as a
         nominee for any other party, and that the undersigned will not offer,
         sell, assign, transfer, pledge, hypothecate, or otherwise dispose of
         any such shares of Common Stock except under circumstances that will
         not result in a violation of the Securities Act or any state securities
         laws

3.       Please issue a certificate or certificates representing the following
         number of Warrant Shares in the name of the undersigned or in such
         other name as is specified below:

         Warrant Shares:
                         ----------------------------

         Name:
               --------------------------------------

                                       88 DANBURY LEASE LLC

                                       By:
                                                -----------------------------
                                       Name:
                                                -----------------------------
                                       Title:
                                                -----------------------------

                                       2

<PAGE>

                                    EXHIBIT B

                                  TRANSFER FORM

         For value received, the undersigned Holder of the within Warrant hereby
sells, assigns and transfers unto the transferee whose name and address are set
forth below all of the right, title and interest of the undersigned in, to and
under the within Warrant.

         Name of Transferee:
                            ----------------------------------------------------

         State of Organization (if applicable):
                                               ---------------------------------

         Federal Tax Identification or Social Security Number:
                                                              ------------------

         Address:
                 ---------------------------------------------------------------

Dated: _____________

                                        [HOLDER]

                                        By:
                                             -----------------------------------
                                             Name:
                                             Title:

                                        (Note: The above signature must
                                        correspond with the name as written upon
                                        the face of the Warrant in all respects
                                        without any alteration or change
                                        whatsoever.)

                                       3

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