Filed by Bowne Pure Compliance





Exhibit 4.9




NEITHER THIS SECURITY NOR THE SECURITIES INTO WHICH THIS SECURITY IS EXERCISABLE HAVE BEEN
REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN
RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE
“SECURITIES ACT”), AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN EFFECTIVE
REGISTRATION STATEMENT UNDER THE SECURITIES ACT OR PURSUANT TO AN AVAILABLE EXEMPTION FROM, OR IN A
TRANSACTION NOT SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT AND IN ACCORDANCE
WITH APPLICABLE STATE SECURITIES LAWS AS EVIDENCED BY A LEGAL OPINION OF COUNSEL TO THE TRANSFEROR
TO SUCH EFFECT, THE SUBSTANCE OF WHICH SHALL BE REASONABLY ACCEPTABLE TO THE COMPANY. THIS
SECURITY AND THE SECURITIES ISSUABLE UPON EXERCISE OF THIS SECURITY MAY BE PLEDGED IN CONNECTION
WITH A BONA FIDE MARGIN ACCOUNT OR OTHER LOAN SECURED BY SUCH SECURITIES.



COMMON STOCK PURCHASE WARRANT




To Purchase                      Shares of Common Stock of




PURE EARTH, INC.




THIS COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received,
                     (the “Holder”), is entitled, upon the terms and subject to the limitations on
exercise and the conditions hereinafter set forth, at any time on or after the date hereof (the
“Initial Exercise Date”) and on or prior to the close of business on the five year
anniversary of the Initial Exercise Date (the “Termination Date”) but not thereafter, to
purchase from Pure Earth, Inc., a Delaware corporation (the “Company”),                      shares (the
“Warrant Shares”) of Common Stock, par value $.001 per share, of the Company (the
“Common Stock”). The purchase price of one share of Common Stock under this Warrant shall
be equal to the Exercise Price, as defined in Section 2(b).



Section 1. Definitions. Capitalized terms used and not otherwise defined
herein shall have the meanings set forth in that certain Subscription Agreement (the
“Subscription Agreement”), dated May 22, 2007, among the Company and the Holder.




Section 2. Exercise.




a) Exercise of Warrant. Exercise of the purchase rights represented by this
Warrant may be made, in whole or in part, at any time or times on or after the Initial
Exercise Date and on or before the Termination Date by delivery to the Company of a duly
executed facsimile copy of the Notice of Exercise Form annexed hereto (or such other office
or agency of the Company as it may designate by notice in writing to the registered Holder
at the address of such Holder appearing on the books of the Company), and, within three (3)
business days of the date said Notice of Exercise is delivered to the Company,



 


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the Company shall have received payment of the aggregate Exercise Price of the
 shares thereby purchased by wire transfer or cashier’s check drawn on a United States bank.
Notwithstanding anything herein to the contrary, the Holder shall not be required to
physically surrender this Warrant to the Company until the Holder has purchased all of the
Warrant Shares available hereunder and the Warrant has been exercised in full, in which
case, the Holder shall surrender this Warrant to the Company for cancellation within three
(3) business days of the date the final Notice of Exercise is delivered to the Company.
Partial exercises of this Warrant resulting in purchases of a portion of the total number of
Warrant Shares available hereunder shall have the effect of lowering the outstanding number
of Warrant Shares purchasable hereunder in an amount equal to the applicable number of
Warrant Shares purchased. The Holder and the Company shall maintain records showing the
number of Warrant Shares purchased and the date of such purchases. The Company shall
deliver any objection to any Notice of Exercise Form within one (1) business day of receipt
of such notice. In the event of any dispute or discrepancy, the records of the Holder shall
be controlling and determinative in the absence of manifest error. The Holder and any
assignee, by acceptance of this Warrant, acknowledge and agree that, by reason of the
provisions of this paragraph, following the purchase of a portion of the Warrant Shares
hereunder, the number of Warrant Shares available for purchase hereunder at any given time
may be less than the amount stated on the face hereof.




b) Exercise Price. The exercise price per share of the Common Stock under this
Warrant shall be $4.50, subject to adjustment hereunder (the “Exercise Price”).




c) Cashless Exercise. If at any time after one year from the date of issuance
of this Warrant there is no effective registration statement under the Securities Act
registering, or no current prospectus available for, the resale of the Warrant Shares by the
Holder, then this Warrant may also be exercised at such time by means of a “cashless
exercise” in which the Holder shall be entitled to receive a certificate for the number of
Warrant Shares equal to the quotient obtained by dividing [(A-B) (X)] by (A), where:




	 	(A)	= 	the closing bid price on the trading day immediately
preceding the date of such election;

	 
	 	(B)	= 	the Exercise Price of this Warrant, as adjusted; and

	 
	 	(X)	= 	the number of Warrant Shares issuable upon exercise of this
Warrant in accordance with the terms of this Warrant by means of a cash
exercise rather than a cashless exercise.







Notwithstanding anything herein to the contrary, on the Termination Date, this Warrant
shall be automatically exercised via cashless exercise pursuant to this Section 2(c).




d) [intentionally omitted.]




e) Mechanics of Exercise.


 


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i. Authorization of Warrant Shares. The Company covenants that
all Warrant Shares which may be issued upon the exercise of the purchase
rights represented by this Warrant will, upon exercise of the purchase
rights represented by this Warrant, be duly authorized, validly issued,
fully paid and nonassessable and free from all taxes, liens and charges
created by the Company in respect of the issue thereof (other than taxes in
respect of any transfer occurring contemporaneously with such issue).




ii. Delivery of Certificates Upon Exercise. Certificates for
 shares purchased hereunder shall be transmitted by the transfer agent of the
Company to the Holder by crediting the account of the Holder’s prime broker
with the Depository Trust Company through its Deposit Withdrawal Agent
Commission (“DWAC”) system if the Company is a participant in such
system, and otherwise by physical delivery to the address specified by the
Holder in the Notice of Exercise within three (3) trading days from the
delivery to the Company of the Notice of Exercise Form, surrender of this
Warrant (if required) and payment of the aggregate Exercise Price as set
forth above (“Warrant Share Delivery Date”). This Warrant shall be
deemed to have been exercised on the date the Exercise Price is received by
the Company. The Warrant Shares shall be deemed to have been issued, and
Holder or any other person so designated to be named therein shall be deemed
to have become a holder of record of such shares for all purposes, as of the
date the Warrant has been exercised by payment to the Company of the
Exercise Price (or by cashless exercise, if permitted) and all taxes
required to be paid by the Holder, if any, pursuant to Section 2(e)(vi)
prior to the issuance of such shares, have been paid.




iii. Delivery of New Warrants Upon Exercise. If this Warrant
shall have been exercised in part, the Company shall, at the request of
Holder and upon surrender of this Warrant certificate, at the time of
delivery of the certificate or certificates representing Warrant Shares,
deliver to Holder a new Warrant evidencing the rights of Holder to purchase
the unpurchased Warrant Shares called for by this Warrant, which new Warrant
shall in all other respects be identical with this Warrant.




iv. Rescission Rights. If the Company fails to cause its
transfer agent to transmit to the Holder a certificate or certificates
representing the Warrant Shares pursuant to this Section 2(e) by the Warrant
Share Delivery Date, then, among all other rights and remedies available to
the Holder, the Holder will have the right to rescind such exercise.




v. No Fractional Shares or Scrip. No fractional shares or
scrip representing fractional shares shall be issued upon the exercise of
this Warrant. As to any fraction of a share which Holder would otherwise be
entitled to purchase upon such exercise, the Company shall at its election,
either pay a cash adjustment in respect of such final fraction in an
amount equal to such fraction multiplied by the Exercise Price or round up
to the next whole share.


 


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vi. Charges, Taxes and Expenses. Issuance of certificates for
Warrant Shares shall be made without charge to the Holder for any issue or
transfer tax or other incidental expense in respect of the issuance of such
certificate, all of which taxes and expenses shall be paid by the Company,
and such certificates shall be issued in the name of the Holder or in such
name or names as may be directed by the Holder; provided,
however, that in the event certificates for Warrant Shares are to be
issued in a name other than the name of the Holder, this Warrant when
surrendered for exercise shall be accompanied by the Assignment Form
attached hereto duly executed by the Holder; and the Company may require, as
a condition thereto, the payment of a sum sufficient to reimburse it for any
transfer tax incidental thereto.




vii. Closing of Books. The Company will not close its
stockholder books or records in any manner which prevents the timely
exercise of this Warrant pursuant to the terms hereof.



Section 3. Certain Adjustments.




a) Stock Dividends and Splits. If the Company, at any time while this Warrant
is outstanding: (A) pays a stock dividend or otherwise make a distribution or distributions
on shares of its Common Stock or any other equity or equity equivalent securities payable in
 shares of Common Stock (which, for avoidance of doubt, shall not include any shares of
Common Stock issued by the Company upon exercise of this Warrant) (a “Common Stock
Equivalent”), (B) subdivides outstanding shares of Common Stock into a larger number of
 shares, (C) combines (including by way of reverse stock split) outstanding shares of Common
Stock into a smaller number of shares, or (D) issues by reclassification of shares of the
Common Stock any shares of capital stock of the Company, then in each case the Exercise
Price shall be multiplied by a fraction of which the numerator shall be the number of shares
of Common Stock (excluding treasury shares, if any) outstanding immediately before such
event and of which the denominator shall be the number of shares of Common Stock outstanding
immediately after such event and the number of shares issuable upon exercise of this Warrant
shall be proportionately adjusted. Any adjustment made pursuant to this Section 3(a) shall
become effective immediately after the record date for the determination of stockholders
entitled to receive such dividend or distribution and shall become effective immediately
after the effective date in the case of a subdivision, combination or re-classification.




b) Pro Rata Distributions. If the Company, at any time prior to the
Termination Date, shall distribute to all holders of Common Stock (and not to the Holder of
this Warrant) evidences of its indebtedness or assets (including cash and cash dividends) or
rights or warrants to subscribe for or purchase any security other than the
Common Stock (which shall be subject to this Section 3(b)), then in each such case the
Exercise Price shall be adjusted by multiplying the Exercise Price in effect immediately
prior to the record date fixed for determination of stockholders entitled to receive such
distribution by a fraction of which the denominator shall be the closing bid price
determined as of the record date mentioned above, and of which the numerator shall be such
closing bid price on such record date less the then per share fair market value at such
record date of the portion of such assets or evidence of indebtedness so distributed
applicable to one outstanding share of the Common Stock as determined by the Board of
Directors of the Company in good faith. In either case the adjustments shall be described
in a statement provided to the Holder of the portion of assets or evidences of indebtedness
so distributed or such subscription rights applicable to one share of Common Stock. Such
adjustment shall be made whenever any such distribution is made and shall become effective
immediately after the record date mentioned above.


 


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c) Fundamental Transaction. If, at any time while this Warrant is outstanding,
(A) the Company effects any merger or consolidation of the Company with or into another
corporation, limited liability company or any other person, entity or association (a
“Person”), (B) the Company effects any sale of all or substantially all of its
assets in one or a series of related transactions, (C) any tender offer or exchange offer
(whether by the Company or another Person) is completed pursuant to which holders of Common
Stock are permitted to tender or exchange their shares for other securities, cash or
property, or (D) the Company effects any reclassification of the Common Stock or any
compulsory share exchange pursuant to which the Common Stock is effectively converted into
or exchanged for other securities, cash or property (in any such case, a “Fundamental
Transaction”), then, upon any subsequent exercise of this Warrant, the Holder shall have
the right to receive, for each Warrant Share that would have been issuable upon such
exercise immediately prior to the occurrence of such Fundamental Transaction, at the option
of the Holder, (a) upon exercise of this Warrant, the number of shares of Common Stock of
the successor or acquiring corporation or of the Company, if it is the surviving
corporation, and any additional consideration (the “Alternate Consideration”)
receivable upon or as a result of such reorganization, reclassification, merger,
consolidation or disposition of assets by a holder of the number of shares of Common Stock
for which this Warrant is exercisable immediately prior to such event, or (b) if the Company
is acquired in an all cash transaction, cash equal to the value of this Warrant as
determined in accordance with the Black-Scholes option pricing formula. For purposes of any
such exercise, the determination of the Exercise Price shall be appropriately adjusted to
apply to such Alternate Consideration based on the amount of Alternate Consideration
issuable in respect of one share of Common Stock in such Fundamental Transaction, and the
Company shall apportion the Exercise Price among the Alternate Consideration in a reasonable
manner reflecting the relative value of any different components of the Alternate
Consideration. If holders of Common Stock are given any choice as to the securities, cash
or property to be received in a Fundamental Transaction, then the Holder shall be given the
same choice as to the Alternate Consideration it receives upon any exercise of this Warrant
following such Fundamental Transaction. To the extent necessary to effectuate the foregoing
provisions, any successor to the Company or surviving entity in such Fundamental Transaction
shall issue to the Holder a new warrant consistent with the foregoing provisions and
evidencing the Holder’s right to exercise such warrant into Alternate Consideration.
The terms of any agreement pursuant to which a Fundamental Transaction is effected shall
include terms requiring any such successor or surviving entity to comply with the provisions
of this Section 3 and insuring that this Warrant (or any such replacement security) will be
similarly adjusted upon any subsequent transaction analogous to a Fundamental Transaction.


 


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d) Calculations. All calculations under this Section 3 shall be made to the
nearest cent or the nearest 1/100th of a share, as the case may be. For purposes of this
Section 3, the number of shares of Common Stock deemed to be issued and outstanding as of a
given date shall be the sum of the number of shares of Common Stock (excluding treasury
 shares, if any) issued and outstanding.




e) Voluntary Adjustment By Company. The Company may at any time during the term
of this Warrant reduce the then current Exercise Price to any amount and for any period of
time deemed appropriate by the Board of Directors of the Company.




f) Notice to Holders.




i. Adjustment to Exercise Price. Whenever the Exercise Price is
adjusted pursuant to any provision of this Section 3, the Company shall
promptly mail to Holder a notice setting forth the Exercise Price after such
adjustment and setting forth a brief statement of the facts requiring such
adjustment and the method of calculating such adjustment. If the Company
issues a variable rate security, the Company shall be deemed to have issued
Common Stock or Common Stock Equivalents at the lowest possible conversion
or exercise price at which such securities may be converted or exercised.




ii. Notice to Allow Exercise by Holder. If (A) the Company
shall declare a dividend (or any other distribution in whatever form) on the
Common Stock; (B) the Company shall declare a special nonrecurring cash
dividend on, or a redemption of, the Common Stock; (C) the Company shall
authorize the granting to all holders of the Common Stock rights or warrants
to subscribe for or purchase any shares of capital stock of any class or of
any rights; (D) the approval of any stockholders of the Company shall be
required in connection with any reclassification of the Common Stock, any
consolidation or merger to which the Company is a party, any sale or
transfer of all or substantially all of the assets of the Company, or any
compulsory share exchange whereby the Common Stock is converted into other
securities, cash or property; (E) the Company shall authorize the voluntary
or involuntary dissolution, liquidation or winding up of the affairs of the
Company; then, in each case, the Company shall cause to be mailed to the
Holder at its last address as it shall appear upon the Warrant Register, as
defined in Section 4(c) below, of the Company, at least 20 calendar days
prior to the applicable record or effective date hereinafter specified, a
notice stating



 


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(x) the date on which a record is to be taken for the purpose of such dividend, distribution, redemption,
rights or warrants, or if a record is not to be taken, the date as of which
the holders of the Common Stock of record to be entitled to such dividend,
distributions, redemption, rights or warrants are to be determined, or (y)
the date on which such reclassification, consolidation, merger, sale,
transfer or share exchange is expected to become effective or close, and the
date as of which it is expected that holders of the Common Stock of record
shall be entitled to exchange their shares of the Common Stock for
securities, cash or other property deliverable upon such reclassification,
consolidation, merger, sale, transfer or share exchange; provided that the
failure to mail such notice or any defect therein or in the mailing thereof
shall not affect the validity of the corporate action required to be
specified in such notice. The Holder is entitled to exercise this Warrant
during the 20-day period commencing on the date of such notice to the
effective date of the event triggering such notice.



Section 4. Transfer of Warrant.




a) Transferability. Subject to compliance with any applicable securities laws
and the conditions set forth in Section 4(d) hereof and to the provisions of Section 3 of
the Subscription Agreement, this Warrant and all rights hereunder (including, without
limitation, any registration rights) are transferable, in whole or in part, upon surrender
of this Warrant at the principal office of the Company or its designated agent, together
with a written assignment of this Warrant substantially in the form attached hereto duly
executed by the Holder or its agent or attorney and funds sufficient to pay any transfer
taxes payable upon the making of such transfer. Upon such surrender and, if required, such
payment, the Company shall execute and deliver a new Warrant or Warrants in the name of the
assignee or assignees and in the denomination or denominations specified in such instrument
of assignment, and shall issue to the assignor a new Warrant evidencing the portion of this
Warrant not so assigned, and this Warrant shall promptly be cancelled. A Warrant, if
properly assigned, may be exercised by a new holder for the purchase of Warrant Shares
without having a new Warrant issued.




b) New Warrants. This Warrant may be divided or combined with other Warrants
upon presentation hereof at the aforesaid office of the Company, together with a written
notice specifying the names and denominations in which new Warrants are to be issued, signed
by the Holder or its agent or attorney. Subject to compliance with Section 4(a) as to any
transfer which may be involved in such division or combination, the Company shall execute
and deliver a new Warrant or Warrants in exchange for the Warrant or Warrants to be divided
or combined in accordance with such notice.




c) Warrant Register. The Company shall register this Warrant, upon records to
be maintained by the Company for that purpose (the “Warrant Register”), in the name
of the record Holder hereof. The Company may deem and treat the registered Holder of this
Warrant as the absolute owner hereof for the purpose of any exercise hereof or any
distribution to the Holder, and for all other purposes, absent actual notice to the
contrary.


 


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d) Transfer Restrictions. If, at the time of the surrender of this Warrant in
connection with any transfer of this Warrant, the transfer of this Warrant shall not be
registered pursuant to an effective registration statement under the Securities Act and
under applicable state securities or blue sky laws, the Company may require, as a condition
of allowing such transfer that (i) the Holder or transferee of this Warrant, as the case may
be, furnish to the Company a written opinion of counsel (which opinion shall be in form,
substance and scope customary for opinions of counsel in comparable transactions) to the
effect that such transfer may be made without registration under the Securities Act and
under applicable state securities or blue sky laws, (ii) the Holder or transferee execute
and deliver to the Company an investment letter in form and substance acceptable to the
Company and (iii) the transferee be an “accredited investor” as defined in Rule 501(a)(1),
(a)(2), (a)(3), (a)(7), or (a)(8) promulgated under the Securities Act or a “qualified
institutional buyer” as defined in Rule 144A(a) under the Securities Act.



Section 5. Miscellaneous.




a) No Rights as Shareholder Until Exercise. This Warrant does not entitle the
Holder to any voting rights or other rights as a shareholder of the Company prior to the
exercise hereof.




b) Loss, Theft, Destruction or Mutilation of Warrant. The Company covenants
that upon receipt by the Company of evidence reasonably satisfactory to it of the loss,
theft, destruction or mutilation of this Warrant or any stock certificate relating to the
Warrant Shares, and in case of loss, theft or destruction, of indemnity or security
reasonably satisfactory to it (which, in the case of the Warrant, shall not include the
posting of any bond), and upon surrender and cancellation of such Warrant or stock
certificate, if mutilated, the Company will make and deliver a new Warrant or stock
certificate of like tenor and dated as of such cancellation, in lieu of such Warrant or
stock certificate.




c) Saturdays, Sundays, Holidays, etc. If the last or appointed day for the
taking of any action or the expiration of any right required or granted herein shall not be
a business day, then such action may be taken or such right may be exercised on the next
succeeding business day.




d) Authorized Shares.




The Company covenants that during the period the Warrant is outstanding, it
will reserve from its authorized and unissued Common Stock a sufficient number of
 shares to provide for the issuance of the Warrant Shares upon the exercise of any
purchase rights under this Warrant. The Company further covenants that its issuance
of this Warrant shall constitute full authority to its officers who are charged with
the duty of executing stock certificates to execute and issue the necessary
certificates for the Warrant Shares upon the exercise of the purchase rights under
this Warrant. The Company will take all such reasonable action as may be necessary
to assure that such Warrant Shares may be issued as provided herein without
violation of any applicable law or regulation, or of any requirements of the trading market upon which the Common Stock may be
listed.


 


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Except and to the extent as waived or consented to by the Holder, the Company
shall not by any action, including, without limitation, amending its certificate of
incorporation or through any reorganization, transfer of assets, consolidation,
merger, dissolution, issue or sale of securities or any other voluntary action,
avoid or seek to avoid the observance or performance of any of the terms of this
Warrant, but will at all times in good faith assist in the carrying out of all such
terms and in the taking of all such actions as may be necessary or appropriate to
protect the rights of Holder as set forth in this Warrant against impairment.
Without limiting the generality of the foregoing, the Company will (a) not increase
the par value of any Warrant Shares above the amount payable therefor upon such
exercise immediately prior to such increase in par value, (b) take all such action
as may be necessary or appropriate in order that the Company may validly and legally
issue fully paid and nonassessable Warrant Shares upon the exercise of this Warrant,
and (c) use commercially reasonable efforts to obtain all such authorizations,
exemptions or consents from any public regulatory body having jurisdiction thereof
as may be necessary to enable the Company to perform its obligations under this
Warrant.




Before taking any action which would result in an adjustment in the number of
Warrant Shares for which this Warrant is exercisable or in the Exercise Price, the
Company shall obtain all such authorizations or exemptions thereof, or consents
thereto, as may be necessary from any public regulatory body or bodies having
jurisdiction thereof.




e) Jurisdiction. All questions concerning the construction, validity,
enforcement and interpretation of this Warrant shall be determined in accordance with the
provisions of the Subscription Agreement.




f) Restrictions. The Holder acknowledges that the Warrant Shares acquired upon
the exercise of this Warrant, if not registered, will have restrictions upon resale imposed
by state and federal securities laws.




g) Nonwaiver and Expenses. No course of dealing or any delay or failure to
exercise any right hereunder on the part of Holder shall operate as a waiver of such right
or otherwise prejudice Holder’s rights, powers or remedies. If the Company willfully and
knowingly fails to comply with any provision of this Warrant, which results in any damages
to the Holder, the Company shall pay to Holder such amounts as shall be sufficient to cover
any costs and expenses including, but not limited to, reasonable attorneys’ fees, including
those of appellate proceedings, incurred by Holder in collecting any amounts due pursuant
hereto or in otherwise enforcing any of its rights, powers or remedies hereunder.


 


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h) Notices. Any notice, request or other document required or permitted to be
given or delivered to the Holder by the Company shall be delivered in accordance with the
notice provisions of the Subscription Agreement.




i) Limitation of Liability. No provision hereof, in the absence of any
affirmative action by Holder to exercise this Warrant to purchase Warrant Shares, and no
enumeration herein of the rights or privileges of Holder, shall give rise to any liability
of Holder for the purchase price of any Common Stock or as a stockholder of the Company,
whether such liability is asserted by the Company or by creditors of the Company.




j) Remedies. Holder, in addition to being entitled to exercise all rights
granted by law, including recovery of damages, will be entitled to specific performance of
its rights under this Warrant. The Company agrees that monetary damages would not be
adequate compensation for any loss incurred by reason of a breach by it of the provisions of
this Warrant and hereby agrees to waive and not to assert the defense in any action for
specific performance that a remedy at law would be adequate.




k) Successors and Assigns. Subject to applicable securities laws, this Warrant
and the rights and obligations evidenced hereby shall inure to the benefit of and be binding
upon the successors of the Company and the successors and permitted assigns of Holder. The
provisions of this Warrant are intended to be for the benefit of the Holder and shall be
enforceable by any such Holder or any holder of Warrant Shares.




l) Amendment. This Warrant may be modified or amended or the provisions hereof
waived only with the written consent of the Company and Holder.




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




n) Headings. The headings used in this Warrant are for the convenience of
reference only and shall not, for any purpose, be deemed a part of this Warrant.



********************



 


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IN WITNESS WHEREOF, the Company has caused this Warrant to be executed and delivered by its
officer thereunto duly authorized.



Dated: May 22, 2007



	 	 	 	 	 
	 	PURE EARTH, INC.

 	 
	 	By:  	 	 
	 	 	Name:  	 	 
	 	 	Title:  	 	 
	 



 


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NOTICE OF EXERCISE




TO: PURE EARTH, INC.



(1) The undersigned hereby elects to purchase                      Warrant Shares of the Company pursuant
to the terms of the Warrant held by the undersigned (the Warrant must be attached to this Notice of
Exercise only if exercised in full), and tenders herewith payment of the exercise price in full,
together with all applicable transfer taxes, if any.



(2) Payment shall take the form of (check applicable box):




o in lawful money of the United States; or




o [if permitted] the cancellation of such number of Warrant Shares as is
necessary, in accordance with the formula set forth in subsection 2(c), to
exercise this Warrant with respect to the maximum number of Warrant Shares
purchasable pursuant to the cashless exercise procedure set forth in subsection
2(c).



(3) Please issue a certificate or certificates representing said Warrant Shares in the name of
the undersigned or in such other name as is specified below:



                                                                                                    



The Warrant Shares shall be delivered to the following DWAC Account Number or by physical delivery
of a certificate to:




                                                                                                    




                                                                                                    




                                                                                                    



(4) Accredited Investor. The undersigned is an “accredited investor” as defined in
Regulation D promulgated under the Securities Act of 1933, as amended.



[SIGNATURE OF HOLDER]




	 	 	 
	Name of Investing Entity:

	 	 
	 

	 	 






	 	 	 
	Signature of Authorized Signatory of Investing Entity:

	 	 
	 

	 	 






	 	 	 
	Name of Authorized Signatory:

	 	 
	 

	 	 






	 	 	 
	Title of Authorized Signatory:

	 	 
	 

	 	 






	 	 	 
	Date:

	 	 
	 

	 	 





 


 









 





ASSIGNMENT FORM




(To assign the foregoing warrant, execute

this form and supply required information.

Do not use this form to exercise the warrant.)




FOR VALUE RECEIVED, [      ] all of or [               ] shares of the foregoing Warrant and all rights
evidenced thereby are hereby assigned to



	 	 	 	 	 	 	 
	 

	 	whose address is	 	 	 	 
	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 
	 

	 	 	.	 
	 	 	 	 	 
	 
	 	 	 	 	 	 
	 
	 	 	 	 	 	 
	 	 	 	 	 
	 
	 	 	 	 	 	 
	 	 	Dated:                     ,           






	 	 	 	 	 	 	 
	 

	 	Holder’s Signature:
	 	 
	 	 
	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 
	 

	 	Holder’s Address:
	 	 
	 	 
	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 
	 

	 	 	 	 
	 	 
	 	 	 	 	 	 	 






	 	 	 	 	 
	Signature Guaranteed:

	 	 
	 

	 	 






                                         represents and warrants that it is an “accredited investor” as defined in Rule
501(a)(1), (a)(2), (a)(3), (a)(7) or (a)(8) promulgated under the Securities Act of 1933, as
amended (the “Securities Act”), or a “qualified institutional buyer” as defined in Rule 144A(a)
under the Securities Act.



NOTE: The signature to this Assignment Form must correspond with the name as it appears on the
face of the Warrant, without alteration or enlargement or any change whatsoever, and must be
guaranteed by a bank or trust company. Officers of corporations and those acting in a fiduciary or
other representative capacity should file proper evidence of authority to assign the foregoing
Warrant.