Exhibit
4.6

    

    


    NUMBER                                                        UNITS

    


    U-__________                                                                                                CUSIP
________

    


    [GOLDEN
GREEN ENTERPRISES LIMITED]

    


    UNITS
CONSISTING OF ONE ORDINARY SHARE AND TWO WARRANTS EACH TO PURCHASE ONE ORDINARY
SHARE (“UNITS”)

    


    THIS
CERTIFIES THAT

    


    ___________________________________________________________

    


    is the
owner of

    ________________________________________________________________Units.

    


    Each Unit
consists of one (1) ordinary share, no par value, (“Ordinary Shares”), of
[Golden Green Enterprises Limited], a British Virgin Islands business company
(the “Company”), and two warrants (the “Warrants”). Each Warrant entitles the
holder to purchase one (1) Ordinary Share for US$5.00 per share (subject to
adjustment). Each Warrant will become exercisable on [the date Company's
completion of the merger with China Opportunity Acquisition Corp.] and will
expire unless exercised before 5:00 p.m., New York City Time, on March 19, 2011,
or earlier upon redemption.

    


    The terms
of the Warrants are governed by a Warrant Agreement, dated as of March 20, 2007,
between China Opportunity Acquisition Corp. (“COAC”), a Delaware corporation,
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, United States of America and are
available to any Warrantholder on written request and without
cost.  For purposes of interpretation, unless the context requires
otherwise, references in the Warrant Agreement to shares of Common Stock of COAC
shall be deemed to be references to Ordinary Shares.

    


    This
certificate is not valid unless countersigned by the Transfer Agent and
Registrar of the Company.

     

    
      
        	THE COMMON SEAL
      of  	)	 	 
	[Golden Green
      enterprises Limited] 	) 	 	 
	was hereunto
      affixed 	) 	 	 
	in the presence
      of: 	 	Director	 


      

       

    

     

    
      
         


      

      
         


        
          

        

      

      
         


      

    


    [GOLDEN
GREEN ENTERPRISES LIMITED]

    


    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     NIF GIFT MIN
ACT – ____ Custodian _____

    TEN
ENT – as tenants by the
entireties                (Cust)       (Minor)

    JT
TEN –  as joint tenants with right under Uniform Gifts to Minors
of survivorship and not as tenants in common

    


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


    
      
         


      

      
         


        
          

        

      

      
         


      

    


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

    


    PLEASE
INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE

    


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

    


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

    


    ________________________________________________________________________________

    (PLEASE
PRINT OR 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 with
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.

    


    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).