Exhibit 4.1


SPECIMEN UNIT CERTIFICATE


NUMBER UNITS


U-


SEE REVERSE FOR CERTAIN


DEFINITIONS


CUSIP [ ]


 


RichSPACE
ACquisition CORP.


UNITS CONSISTING OF ONE CLASS A ORDINARY SHARE
AND ONE-HALF OF ONE REDEEMABLE 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 (“Class A Ordinary Shares”), of RichSpace
Acquisition Corp., a Cayman Islands exempted company (the “Company”), and one-half (1/2) of one redeemable warrant
(each whole warrant, a “Warrant”). Each Warrant entitles the holder to purchase one (1) Class A 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”), and (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 Company completes its initial Business Combination, or earlier upon redemption or liquidation (the “Expiration
Date”). The Class A Ordinary Shares and Warrants comprising the Units represented by this certificate are not transferable
separately prior to [●], 2021, unless Prime Number Capital, LLC elects to allow earlier separate trading, subject to the Company’s
filing with the Securities and Exchange Commission of a Current Report on Form 8-K containing an audited balance sheet reflecting the
Company’s receipt of the gross proceeds of the initial public offering and issuing a press release announcing when separate trading
will begin. No fractional warrants will be issued upon separation of the Units and only whole warrants are exercisable. The terms of the
Warrants are governed by a Warrant Agreement, dated as of [●], 2021, between the Company and VStock Transfer, LLC, 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 18 Lafayette Place, Woodmere,
New York 11598, and are available to any Warrant holder on written request and without cost.


 


Upon the consummation of the
Business Combination, the Units represented by this certificate will automatically separate into the Class A Ordinary Shares and Warrants
comprising such Units.


 


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 signatures
of its duly authorized officers.


 


	By:	 	 	 


 


	 	Chief Executive Officer	 	Chief Financial Officer


 




     


     


    

 


RICHSPACE
ACQUISITION CORP.


 


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 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	 	UNIF GIFT MIN ACT	-	 	Custodian	 
	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	(Cust)	 	(Minor)
	 	 	 	 	 	 	 	 	 
	TEN ENT	-	as tenants by the entireties	 	 	 	under Uniform Gifts to Minors Act
	 	 	 	 	 	 	(State)
	JT TEN	-	
    as joint tenants with right of

    survivorship and not as tenants in

    common
	 	 	 	 




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


 


For value received, ___________________________ hereby sells, assigns
and transfers 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 hereby irrevocably constitutes and appoints Attorney to transfer said Units on the books of the within named Company
with full power of substitution in the premises.


 


	Dated	 	 	 
	 	 	 	
    Shareholder

    

	 	 	 	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.


 




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    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 OR ANY SUCCESSOR

    RULES).
	 


 


In each case, as more fully
described in the Company’s final prospectus dated [●], 2021, 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 the Company’s initial public offering
only in the event that (i) 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 period of time set forth in the Company’s amended and restated
memorandum and articles of association, as the same may be amended from time to time, (ii) the Company redeems the Class A Ordinary Shares
sold in its initial public offering in connection with a shareholder vote to amend the Company’s amended and restated memorandum
and articles of association that would affect the substance or timing of the Company’s obligation to provide for the redemption
of Class A Ordinary Shares in connection with an initial business combination or to redeem 100% of the Class A Ordinary Shares if it does
not consummate an initial business combination within the time period set forth therein, or (iii) 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.


 


 


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