Document:

Exhibit 4.1

SPECIMEN UNIT CERTIFICATE

	
  NUMBER

  	
   

  	
  UNITS

  

 

U-                      

	
  SEE REVERSE FOR

  	
   

  
	
  CERTAIN

  	
   

  
	
  DEFINITIONS

  	
   

  

 

STONE TAN CHINA ACQUISITION CORP.

CUSIP

UNITS CONSISTING OF ONE SHARE OF COMMON STOCK AND ONE
WARRANT

EACH TO PURCHASE ONE SHARE OF COMMON STOCK

	
  THIS CERTIFIES THAT

  	
   

  	
   

  
	
  is the owner of

  	
   

  	
  Units.

  

Each Unit (“Unit”)
consists of one (1) share of common stock, par value $.0001 per share (“Common
Stock”), of STONE TAN CHINA ACQUISITION CORP., a Delaware corporation (the “Company”),
and one warrant (the “Warrant”). Each Warrant entitles the holder to purchase
one (1) share of Common Stock for $6.00 per share (subject to adjustment).  Each Warrant will become exercisable on the
later of (i) the Company’s completion of a business combination with a target
business or (ii)                             ,
2008 and will expire unless exercised before 5:00 p.m., New York City Time, on                         ,
2011, or earlier upon redemption (the “Expiration Date”). The Common Stock and
Warrant comprising the Units represented by this certificate may trade
separately on the 90th
 day after the date of the prospectus unless
the representative of the underwriters determines that an earlier date is
acceptable; provided, however, in no event will the representative of the
underwriters allow separate trading of the common stock and warrants until the
Company files an audited balance sheet reflecting the Company’s receipt of the
gross proceeds of the offering.  The
terms of the Warrants are governed by a Warrant Agreement, dated as of               ,
2007, between the Company and Continental Stock Transfer & Trust Company,
as Warrant Agent, and are subject to the terms and provisions contained
therein, all of which terms and provisions the holder of this certificate
consents to by acceptance hereof.  Copies
of the Warrant Agreement are on file at the office of the Warrant Agent at 17
Battery Place, New York, New York  10004,
and are available to any Warrant holder on written request and without cost.
This certificate is not valid unless countersigned by the Transfer Agent and
Registrar of the Company.

Witness the facsimile
seal of the Company and the facsimile signature of its duly authorized
officers.

	
  By

  	
   

  	
   

  	
   

  	
   

  
	
   

  	
   

  	
   

  	
   

  	
   

  
	
   

  	
  Chief Executive Officer

  	
   

  	
  Secretary

  	
   

  

 

CORPORATE

SEAL

2007

DELAWARE

STONE TAN CHINA ACQUISITION CORP.

The Company will furnish without charge to each
stockholder who so requests, a statement of the powers, designations,
preferences and relative, participating, optional or other special rights of
each class of stock or series thereof of the Company and the qualifications,
limitations, or restrictions of such preferences and/or rights.

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

TEN ENT  -  as
tenants by the entireties

JT TEN  -  as
joint tenants with right of survivorship

and not as tenants in common

	
  UNIF GIFT MIN ACT -

  	
   

  	
  Custodian

  	
   

  
	
   

  	
  (Cust)

  	
   

  	
  (Minor)

  	
   

  
	
   

  	
  under Uniform Gifts to Minors

  
	
   

  	
  Act

  	
   

  
	
   

  	
   

  	
  (State)

  	
   

  
							

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
  TYPEWRITE NAME AND ADDRESS, INCLUDING ZIP CODE, OF ASSIGNEE)

  
	
   

  
	
   

  
	
   

  	
  Units

  
	
  represented by the within Certificate, and do hereby
  irrevocably constitute and appoint

  
	
   

  	
  Attorney

  
	
  to transfer the said Units on the books of the
  within named Company will full power of substitution in the premises.

  
	
   

  
	
  Dated

  	
   

  	
   

  	
   

  
	
   

  	
   

  
	
   

  	
   

  	
  NOTICE:                 The signature to this assignment must
  correspond with the name as written upon the face of the certificate in every
  particular, without alteration or enlargement or any change whatever.

  
							

 

 2
 

 

	
  Signature(s) Guaranteed:

  
	
   

  
	
  THE SIGNATURE(S) SHOULD BE GUARANTEED BY AN ELIGIBLE
  GUARANTOR INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND
  CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION
  PROGRAM, PURSUANT TO S.E.C. RULE 17Ad-15).

  

 

 3Exhibit
4.2

SPECIMEN COMMON
STOCK CERTIFICATE

	
  NUMBER

  	
   

  	
  SHARES

  
	
                    C

  	
   

  	
   

  

 

STONE TAN CHINA
ACQUISITION CORP.

INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE

COMMON STOCK

SEE REVERSE FOR

CERTAIN DEFINITIONS

THIS CERTIFIES THAT                                                                                                             CUSIP

IS THE OWNER OF

FULLY PAID AND
NON-ASSESSABLE SHARES OF THE PAR VALUE OF

$.0001 EACH OF THE COMMON STOCK OF

STONE TAN CHINA ACQUISITION CORP.

transferable on the books of the Corporation in person
or by duly authorized

attorney upon surrender of this certificate properly endorsed. This

certificate is not valid unless countersigned by the Transfer

Agent and registered by the Registrar. 
Witness the seal of

the Corporation and the facsimile signatures of

its duly authorized officers.

Dated:

 

	
   

  	
   

  	
   

  
	
  Chief Executive Officer

  	
   

  	
  Secretary

  

 

STONE TAN CHINA
ACQUISITION CORP.

CORPORATE

SEAL 2007

DELAWARE

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

TEN ENT  -  as
tenants by the entireties

JT TEN  -  as
joint tenants with right of survivorship

and not as tenants in common

	
  UNIF GIFT MIN ACT -

  	
   

  	
  Custodian

  	
   

  
	
   

  	
  (Cust)

  	
   

  	
  (Minor)

  	
   

  
	
   

  	
  under Uniform Gifts to Minors

  
	
   

  	
  Act

  	
   

  	
   

  
	
   

  	
   

  	
  (State)

  	
   

  
							

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

STONE TAN CHINA ACQUISITION CORP.

The Corporation will furnish without charge to each
stockholder who so requests the powers, designations, preferences and relative,
participating, optional or other special rights of each class of stock or
series thereof of the Corporation and the qualifications, limitations, or
restrictions of such preferences and/or rights. 
This certificate and the shares represented thereby are issued and shall
be held subject to all the provisions of the Certificate of Incorporation and
all amendments thereto and resolutions of the Board of Directors providing for
the issue of shares of Preferred Stock (copies of which may be obtained from
the secretary of the Corporation), to all of which the holder of this
certificate by acceptance hereof assents.

For value received,                                                       
hereby sell, assign and transfer unto

	
  PLEASE INSERT
  SOCIAL SECURITY OR OTHER

  IDENTIFYING NUMBER OF ASSIGNEE

  	
   

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  
	
  (PLEASE PRINT OR
  TYPEWRITE NAME AND ADDRESS, INCLUDING ZIP CODE, OF ASSIGNEE)

  
	
   

  
	
   

  
	
   

  	
  shares

  
	
  of the capital 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 will full power of substitution in the premises.

  
	
   

  
	
  Dated

  	
   

  	
   

  	
   

  
							

 

 2
 

 

	
   

  	
   

  	
   

  
	
   

  	
   

  	
   

  
	
   

  	
   

  	
  NOTICE:                 The
  signature to this assignment must correspond with the name as written upon
  the face of the certificate in every particular, without alteration or
  enlargement or any change whatever.

  

 

 3
 

 

	
  Signature(s) Guaranteed:

  
	
   

  
	
   

  
	
  THE SIGNATURE(S) SHOULD BE GUARANTEED BY AN ELIGIBLE
  GUARANTOR INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND
  CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION
  PROGRAM, PURSUANT TO S.E.C. RULE 17Ad-15).

  
	
   

  
	
  The holder of this certificate shall be entitled to
  receive funds from the trust fund only in the event of the Company’s
  liquidation or if the holder seeks to convert his respective shares into cash
  upon a business combination which he voted against and which is actually
  completed by the Company.  In no other
  circumstances shall the holder have any right or interest of any kind in or
  to the trust fund.

  

 

 4Exhibit 4.3

SPECIMEN WARRANT CERTIFICATE

NUMBER                                                                                                                                                                      WARRANTS

                  -

(SEE REVERSE SIDE FOR LEGEND)

(THIS WARRANT WILL BE VOID IF NOT EXERCISED PRIOR TO 5:00 P.M.

NEW YORK CITY TIME,                     ,
2011

STONE TAN CHINA ACQUISITION CORP.

CUSIP

WARRANT

THIS CERTIFIES THAT, for
value received

is the registered holder
of a Warrant or Warrants expiring                 ,
2011 (the “Warrant”) to purchase one fully paid and non-assessable share of
Common Stock, par value $.0001 per share (“Shares”), of STONE TAN CHINA
ACQUISITION CORP., a Delaware corporation (the “Company”), for each Warrant
evidenced by this Warrant Certificate. 
The Warrant entitles the holder thereof to purchase from the Company,
commencing on the later of (i) the Company’s completion of a business
combination with a target business or (ii)                     ,
2008, such number of Shares of the Company at the price of $6.00 per share,
upon surrender of this Warrant Certificate and payment of the Warrant Price at
the office or agency of the Warrant Agent, Continental Stock Transfer &
Trust Company (such payment to be made by check made payable to the Warrant
Agent), but only subject to the conditions set forth herein and in the Warrant
Agreement between the Company and Continental Stock Transfer & Trust
Company.  The Warrant Agreement provides
that upon the occurrence of certain events the Warrant Price and the number of
Warrant Shares purchasable hereunder, set forth on the face hereof, may,
subject to certain conditions, be adjusted. 
The term Warrant Price as used in this Warrant Certificate refers to the
price per Share at which Shares may be purchased at the time the Warrant is
exercised.

No fraction of a Share will be issued upon any
exercise of a Warrant.  If, upon exercise of a Warrant, a holder
would be entitled to receive a fractional interest in a Share, the Company
will, upon exercise, round up to the nearest whole number the number of shares
of common stock to be issued to the warrant holder.

Upon any exercise of the Warrant for less than the
total number of full Shares provided for herein, there shall be issued to the
registered holder hereof or his assignee a new Warrant Certificate covering the
number of Shares for which the Warrant has not been exercised.

Warrant Certificates, when surrendered at the office
or agency of the Warrant Agent by the registered holder hereof in person or by
attorney duly authorized in writing, may be exchanged in the manner and subject
to the limitations provided in the Warrant Agreement, but without payment of
any service charge, for another Warrant Certificate or Warrant Certificates of
like tenor and evidencing in the aggregate a like number of Warrants.

Upon due presentment for registration of transfer of
the Warrant Certificate at the office or agency of the Warrant Agent, a new
Warrant Certificate or Warrant Certificates of like tenor and evidencing in the
aggregate a like number of Warrants shall be issued to the transferee in
exchange for this Warrant Certificate, subject to the limitations provided in
the Warrant Agreement, without charge except for any applicable tax or other
governmental charge.

The Company and the Warrant Agent may deem and treat
the registered holder as the absolute owner of this Warrant Certificate
(notwithstanding any notation of ownership or other writing hereon made by
anyone), for the purpose of any exercise hereof, of any distribution to the
registered holder, and for all other purposes, and neither the Company nor the
Warrant Agent shall be affected by any notice to the contrary.

This Warrant does not entitle the registered holder to
any of the rights of a stockholder of the Company.

The Company reserves the right to call the Warrant at
any time prior to its exercise, with a notice of call in writing to the holders
of record of the Warrant, giving 30 days’ notice of such call at any time after
the Warrant becomes exercisable if the last sale price of the Shares equals or
exceeds $11.50 per share on each of 20 trading days within a 30 trading day
period ending on the third business day prior to the date on which notice of
such call is given. The call price of the Warrants is to be $.01 per Warrant.
Any Warrant either not exercised or tendered back to the Company by the end of
the date specified in the notice of call shall be canceled on the books of the
Company and have no further value except for the $.01 call price.

	
  By

  	
   

  	
   

  	
   

  
	
   

  
	
   

  	
  Secretary

  	
   

  	
  Chief Executive Officer

  

SUBSCRIPTION FORM

To Be Executed by the Registered Holder in Order to Exercise Warrants

The undersigned
Registered Holder irrevocably elects to exercise                             
Warrants represented by this Warrant Certificate, and to purchase the shares of
Common Stock issuable upon the exercise of such Warrants, and requests that
Certificates for such shares shall be issued in the name of

	
  

  
	
  (PLEASE TYPE OR PRINT
  NAME AND ADDRESS)

  
	
   

  
	
   

  
	
   

  
	
  (SOCIAL SECURITY OR TAX
  IDENTIFICATION NUMBER)

  
	
  and be delivered to

  	
   

  
	
   

  	
  (PLEASE PRINT OR TYPE
  NAME AND ADDRESS)

  
	
   

  
	
   

  
	
  and, if such number of Warrants shall not be all the
  Warrants evidenced by this Warrant Certificate, that a new Warrant
  Certificate for the balance of such Warrants be registered in the name of,
  and delivered to,

  

 

 2
 

 

the Registered Holder at the address stated below:

 

	
  

  
	
  Dated:

  	
   

  	
   

  	
   

  
	
   

  	
   

  	
   

  	
  (SIGNATURE)

  
	
   

  	
   

  	
   

  	
   

  
	
   

  	
   

  	
   

  	
  (ADDRESS)

  
	
   

  	
   

  	
   

  	
   

  
	
   

  	
   

  	
   

  	
   

  
	
   

  	
   

  	
   

  	
  (TAX IDENTIFICATION NUMBER)

  

ASSIGNMENT

To Be Executed by the Registered Holder in Order to
Assign Warrants

	
  For Value Received, 

  	
   

  	
  hereby sell, assign, and transfer unto

  
	
   

  
	
  (PLEASE TYPE OR PRINT
  NAME AND ADDRESS)

  
	
   

  
	
   

  
	
   

  
	
  (SOCIAL SECURITY OR TAX
  IDENTIFICATION NUMBER)

  
	
   

  
	
  and be delivered to

  	
   

  
	
   

  	
  (PLEASE PRINT OR TYPE
  NAME AND ADDRESS)

  
	
   

  	
   

  
	
   

  	
  of the Warrants represented by this Warrant
  Certificate, and hereby

  
	
  irrevocably constitute and appoint 

  	
   

  
	
  Attorney to transfer this Warrant Certificate on the
  books of the Company, with full power of substitution in the premises.

  
	
   

  
	
  Dated:

  	
   

  	
   

  	
   

  
	
   

  	
   

  	
   

  	
  (SIGNATURE)

  
							

THE
SIGNATURE TO THE ASSIGNMENT OF THE SUBSCRIPTION FORM MUST CORRESPOND TO THE
NAME WRITTEN UPON THE FACE OF THIS WARRANT CERTIFICATE IN EVERY PARTICULAR,
WITHOUT ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATSOEVER, AND MUST BE
GUARANTEED BY A COMMERCIAL BANK OR TRUST COMPANY OR A MEMBER FIRM OF THE
AMERICAN STOCK EXCHANGE, NEW YORK STOCK EXCHANGE, PACIFIC STOCK EXCHANGE OR
CHICAGO STOCK EXCHANGE.

 3

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