Exhibit 4.1


 


NUMBER UNITS


U-


 


SEE REVERSE FOR CERTAIN


DEFINITIONS


 


CUSIP [●]


 


GEF ACQUISITION CORPORATION


 


UNITS CONSISTING OF ONE CLASS A ORDINARY
SHARE AND ONE WARRANT TO PURCHASE


ONE CLASS A ORDINARY SHARE


 


THIS CERTIFIES THAT _______________________________________________________________is
the owner of ________________________________________ Units.


 


Each Unit (“Unit”) consists of one
(1) Class A Ordinary Share, par value $0.0001 per share (“Ordinary Share”), of GEF Acquisition Corporation,
a Cayman Islands exempted company (the “Company”), and one warrant (the “Warrant”).
Each warrant entitles the holder to purchase one Ordinary Share for $11.50 per share (subject to adjustment).  Each Warrant
will become exercisable on the later of (i) thirty (30) days after the Company’s completion of a merger, share exchange,
asset acquisition, share purchase, reorganization or other similar business combination with one or more businesses (each a “Business
Combination”), or (ii) twelve (12) months from the closing of the Company’s initial public offering, and will
expire unless exercised before 5:00 p.m., New York City Time, on the date that is five (5) years after the date on which the Warrants
first become exercisable, or earlier upon redemption or liquidation (the “Expiration Date”).  The
Ordinary Shares and Warrants comprising the Units represented by this certificate are not transferable separately prior to ____________,
20___, unless EarlyBirdCapital, Inc. and Maxim Group LLC elect to allow separate trading earlier, subject to the Company’s
filing of a Current Report on Form 8-K with the Securities and Exchange Commission containing an audited balance sheet reflecting
the Company’s receipt of the gross proceeds of the offering and issuing a press release announcing when separate trading
will begin.  The terms of the Warrants are governed by a Warrant Agreement, dated as of _____________, 2016, 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.


 


This certificate shall be governed by and
construed in accordance with the internal laws of the State of New York.


 


Witness the facsimile signature of its duly
authorized officers.


 


	 	 	 
	Secretary	 	President


 




     


     


    

 


GEF Acquisition Corporation


 


The Company will furnish without
charge to each unitholder who so requests, a statement of the powers, designations, preferences and relative, participating,
optional or other special rights of each class of equity 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)
	 	 	 	 	 	 	Under Uniform Gifts to Minors
	JT TEN	—	as joint tenants with right of survivorship 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 Corporation 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) 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).  












 




     


     


    

 


In each case, as more fully described in the Company’s
final prospectus dated __________, the holder(s) of this certificate shall be entitled to receive a pro-rata portion of certain
funds held in the trust account established in connection with its initial public offering only in the event that the Company redeems
the Class A Ordinary Shares sold in its initial public offering and liquidates because it does not consummate an initial business
combination within the time period set forth in the Company’s Amended and Restated Memorandum and Articles of Association,
as the same may be amended from time to time, or if the holder(s) seek(s) to redeem for cash his, her or its respective Class A
Ordinary Shares in connection with a tender offer (or proxy solicitation, solely in the event the Company seeks shareholder approval
of the proposed initial business combination) setting forth the details of a proposed initial business combination. In no other
circumstances shall the holder(s) have any right or interest of any kind in or to the trust account.