Document:

Exhibit
      4.2

    SPECIMEN
      SUBUNIT CERTIFICATE

    

    SUBUNITS

    

    

    Number
      SU
      - _______ 

    

    

    SEE
      REVERSE FOR CERTAIN DEFINITIONS

     

    CHINA
      GROWTH ALLIANCE LTD.

    

    CUSIP
      G21114 205

    

    SUBUNITS
      CONSISTING OF: (1) ONE ORDINARY SHARE AND ONE CLASS B WARRANT, WHERE EVERY
      TWO
      (2) CLASS B WARRANTS AUTOMATICALLY CONVERT INTO ONE CLASS A WARRANT SUBSEQUENT
      TO THE COMPANY’S CONSUMMATION OF ITS INITIAL BUSINESS COMBINATION. 

    

    THIS
      CERTIFIES THAT 

     

    IS
      THE
      OWNER OF

    

    SUBUNITS.

    

    Each
      Subunit (“Subunit”) consists of: (i) one ordinary share, par value .0004348 per
      share (“Ordinary Share”) and (ii) one Class B Warrant (“Class B Warrant”) where
      every two Class B Warrants automatically convert into one Class A Warrant upon
      the Company’s consummation of its initial business combination. Each Class A
      Warrant entitles the holder to purchase one (1) Ordinary Share of CHINA GROWTH
      ALLIANCE LTD., a Cayman Islands corporation (the “Company”) for $5.50 (subject
      to adjustment). Each Class A Warrant will become exercisable on the later of
      (i)
      the Company’s completion of a business combination with a target business or
      (ii) ______________,
      2009
      and will expire unless exercised before 5:00 p.m., New York City Time, on
      ______________,
      2013,
      or earlier upon redemption (the “Expiration Date”). The terms of the Class A
      Warrants and Class B Warrants are governed by a Warrant Agreement, dated as
      of
      ______________,
      2008,
      between the Company and American 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 59
      Maiden
      Lane, Plaza Level, New York, NY 10038,
      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. 

     

    COUNTERSIGNED
      AND REGISTERED: 

    AMERICAN
      STOCK TRANSFER & TRUST COMPANY 

    TRANSFER
      AGENT AND REGISTRAR 

    BY:
      

    AUTHORIZED
      OFFICER 

     

    By
      

     

    (SIGNATURE)

    CHIEF
      EXECUTIVE OFFICER

    CHINA
      GROWTH ALLIANCE LTD.

    CORPORATE

    (SEAL)

    2007

    CAYMAN
      ISLANDS

    (SIGNATURE)

    SECRETARY

     

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    [REVERSE
      OF CERTIFICATE]

    

    CHINA
      GROWTH ALLIANCE LTD.

    

    The
      Company will furnish without charge to each shareholder who so requests, a
      statement of the powers, designations, preferences and relative, participating,
      optional or other special rights of each class of shares 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(s), assign(s) and transfer(s)
      unto

     

    PLEASE
      INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE(S) 

     

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

              
	 
	 
	
                Subunits
                  represented by the within Certificate, and hereby irrevocably
                  constitute(s) and appoint(s)

              
	 

      
Attorney
      to transfer the said Subunits on the books of the within named Company with
      full
      power of substitution in the premises.

     

    Dated:
      

    

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

     

    Signature(s)
      Guaranteed: 

     

    
      
        	
                By
                  

              	
                 

              
	THE
                SIGNATURE(S) MUST 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 a pro-rata portion
      of
      the funds from the trust account only in the event of the Company’s liquidation
      or if the holder seeks to redeem 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 account.Exhibit
      4.4

    SPECIMEN
      CLASS A WARRANT

    

    (SEE
      REVERSE SIDE FOR LEGEND)

     

    
      
        	
                Number
                  A -_________

              	
                CLASS
                  A WARRANTS

              

      

    

     

    (THIS
      WARRANT WILL BE VOID IF NOT EXERCISED PRIOR TO 5:00 P.M. NEW YORK CITY TIME,
         ,
      2013)

    

    CHINA
      GROWTH ALLIANCE LTD.

     

    CUSIP
      G2114 114

     

    CLASS
      A
      WARRANT

     

    THIS
      CERTIFIES THAT, FOR VALUE RECEIVED 

     

    IS
      THE
      REGISTERED HOLDER OF 

     

    a
      Class A
      Warrant or Warrants expiring ________,
      2013
      (the “Class A Warrant”) to purchase one fully paid and non-assessable Ordinary
      Share, par value $.0004348 per share (the “Shares”), of CHINA GROWTH ALLIANCE
      LTD., a Cayman Islands corporation (the “Company”), for each Class A Warrant
      evidenced by this Class A Warrant Certificate. The Class A 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)
      ______________,
      2009,
      such number of Shares of the Company at the price of $5.50 per share (the
“Warrant Price”), upon surrender of this Warrant Certificate and payment of the
      Warrant Price at the office or agency of the Warrant Agent, American 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 American Stock Transfer &
Trust Company. In no event shall the registered holder of this Class A Warrant
      be entitled to receive a net-cash settlement, Shares or other consideration
      in
      lieu of physical settlement in Shares of the 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.

     

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    The
      Company reserves the right to call the Class A Warrant at any time prior to
      its
      exercise, with a notice of call in writing to the holders of record of the
      Warrants, giving 30 days’ notice of such call at any time after the Class A
      Warrant becomes exercisable if the last sale price of the Shares has been at
      least $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 Class A Warrants is to be $.01 per Warrant.
      Any
      Class A 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. If the
      Class A Warrants are called for redemption as described above, the Company
      will
      have the option to require any holder that wishes to exercise Class A Warrants
      to do so on a “cashless basis”, in which case the registered holder may exercise
      this Class A Warrant by surrendering same for that number of Ordinary Shares
      equal to the quotient obtained by dividing (x) the product of the number of
      Ordinary Shares underlying the Class A Warrant, multiplied by the difference
      between the Warrant Price and the “Fair Market Value” (defined below) by (y) the
      Fair Market Value. The “Fair Market Value” shall mean the average reported last
      sale price of the Shares for the 10 trading days ending on the third business
      day prior to the date on which notice of redemption is sent to the registered
      holder of this Class A Warrant. 

    

    This
      Warrant may expire on the date first above written if it is not exercised prior
      to such date by the registered holder pursuant to the terms of the Warrant
      Agreement or if it is not redeemed by the Company prior to such
      date.

     

    No
      fraction of a Share will be issued upon any exercise of a Class A Warrant.
      If,
      upon exercise of a Class 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 Ordinary Shares to be issued to the warrant
      holder. 

    

    Upon
      any
      exercise of the Class A 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 Class A 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
      Class A 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
      Class A Warrant does not entitle the registered holder to any of the rights
      of a
      shareholder of the Company.

    
 

    COUNTERSIGNED:
      

    AMERICAN
      STOCK TRANSFER & TRUST COMPANY 

    WARRANT
      AGENT

    BY:
      

    AUTHORIZED
      OFFICER 

     

    DATED:
      

     

    (Signature)

    CHIEF
      EXECUTIVE OFFICER

    CHINA
      GROWTH ALLIANCE LTD.

    CORPORATE

    (Seal)

    2007

    CAYMAN
      ISLANDS

    (Signature)

    SECRETARY

    

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    [Reverse
      of Certificate]

    

    SUBSCRIPTION
      FORM

     

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

    

    

    The
      undersigned Registered Holder irrevocably elects to exercise _________ Class
      A
      Warrant(s) represented by this Warrant Certificate, and to purchase the Ordinary
      Shares issuable upon the exercise of such Class A Warrants, and requests that
      Certificates for such shares shall be issued in the name(s) of

     

    
      
        	 
	
                (PLEASE
                  TYPE OR PRINT EACH 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 Class A Warrants shall not be all the Class A Warrants evidenced
      by this Warrant Certificate, that a new Warrant Certificate for the balance
      of
      such Class A Warrants be registered in the name of, and delivered to, the
      Registered Holder(s) at the address stated below:

     

    Dated:
      

     

    
      
        	 	 
	
                (SIGNATURE)
                  

              	 
	 	 
	
                (ADDRESS)

              	 
	 	 
	 	 
	
                (TAX
                  IDENTIFICATION NUMBER)

              	 

      

       

    

    THE
      SIGNATURE(S) TO THE ASSIGNMENT OF THE SUBSCRIPTION FORM MUST CORRESPOND TO
      THE
      NAME(S) 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. 

    

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    ASSIGNMENT

     

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

    

    For
      Value
      Received,_____________________hereby sell(s), assign(s), and transfer(s)
      unto

     

    
      
        
          	 
	
                  (PLEASE
                    TYPE OR PRINT EACH NAME AND ADDRESS) 

                
	 
	 
	 
	
                  (SOCIAL
                    SECURITY OR TAX IDENTIFICATION NUMBER)

                

        

         

        
          	and be delivered
                  to	
                   

                
	 	
                  (PLEASE
                    PRINT OR TYPE NAME AND ADDRESS) 

                
	 	 

        

      

       

    

    of
      the
      Class A Warrants represented by this Warrant Certificate, and hereby irrevocably
      constitute(s) and

     

    appoint(s)
      ________________________________Attorney to transfer this Warrant Certificate
      on
      the books of the Company, with full power of substitution in the
      premises.

     

    Dated:
      

     

    
      
        
          	 	 
	
                  (SIGNATURE(S))
                    

                	 

        

      

    

     

    Notice:
      The signature(s) 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.

    

    Signature(s)
      Guaranteed: 

     

    THE
      SIGNATURE(S) MUST 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).

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