Exhibit 4.1


 


	NUMBER

        U-__________

         
	 	UNITS
	SEE
    REVERSE FOR

    CERTAIN

    DEFINITIONS	BISON
    CAPITAL ACQUISITION CORP.	 
	 	 	CUSIP
    [●]
	 	 	 
	UNITS CONSISTING OF ONE ORDINARY SHARE, ONE RIGHT AND ONE-HALF
OF ONE WARRANT






 


THIS CERTIFIES THAT_______________________________________


 


is the owner of
_______________________________________ Units.


 





Each Unit (“Unit”) consists
of one (1) ordinary share, no par value per share, of BISON CAPITAL ACQUISTION CORP., a British Virgin Islands company (the “Company”),
one (1) right (the “Right”) and one-half (1/2) of one warrant (the “Warrants”). Each holder of a Right
is entitled to receive one tenth (1/10) of a share upon the Company’s completion of an initial merger, share exchange, asset
acquisition, share purchase, recapitalization, contractual arrangement, reorganization or other similar business combination with
one or more businesses or entities (a “Business Combination”). Each whole Warrant entitles the holder to purchase
one ordinary share for $11.50 per whole share (subject to adjustment) and may only be exercised for a whole number of ordinary
shares. Each Warrant will become exercisable commencing on the Company’s completion of a Business Combination and will expire
unless exercised before 5:00 p.m., New York City Time, five years after the completion by Company of an initial Business Combination,
or earlier upon redemption (the “Expiration Date”). The ordinary share, Rights and Warrants comprising the Units represented
by this certificate are not transferable separately prior to the ninetieth (90th) day after the date of the prospectus
relating to the Company’s initial public offering, unless EarlyBirdCapital, Inc. (“EBC”) determines that an
earlier date is acceptable, but in no event will the ordinary shares, Rights and Warrants be traded separately until the Company
files with the Securities and Exchange Commission (the “SEC”) a current report on Form 8-K which includes an audited
balance sheet reflecting the receipt by the Company of the gross proceeds from its initial public offering including the proceeds
received by the Company from the exercise of the over-allotment option thereto, if the over-allotment option is exercised. If
EBC allows separate trading of the ordinary shares, Rights and Warrants prior to the 90th day after the date of
the prospectus relating to the Company’s initial public offering, the Company will issue a press release and file a Current
Report on Form 8-K with the SEC announcing when such separate trading shall begin. The terms of the Rights are set forth in the
prospectus as well as a Rights Agreement, dated as of _______, 2017 between the Company and Continental Stock Transfer & Trust
Company, 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. The terms of the Warrants are governed by a Warrant Agreement, dated as of _______, 2017, 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 Rights Agreement and the Warrant Agreement are on file at the office of the Warrant Agent at 1 State Street, New York, New
York 10004, and are available to any Right holder or Warrant holder, respectively, 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 signatures of its duly authorized officers.


 


	By	 	 	 
	 	 	SEAL	 
	 	Chairman	2017	Chief
    Executive Officer





 






     

     


    

 


BISON
CAPITAL ACQUISITION CORP.


 


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 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	 	UNIF
    GIFT MIN ACT - _____ Custodian ______
	TEN
    ENT –	as
    tenants by the entireties	 	(Cust)                 (Minor)

	JT
    TEN –	as
    joint tenants with right of

    survivorship

    and not as tenants in common	 	under
        Uniform Gifts to Minors

        and not as tenants in common 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.
	 

        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 upon failure to consummate
a business combination or if the holder seeks to redeem his shares upon consummation of such business combination or in connection
with certain amendments to the Company’s Amended and Restated Memorandum and Articles of Association. In no other circumstances
shall the holder have any right or interest of any kind in or to the trust fund.