Document:

Exhibit
4.3

 

SPECIMEN
WARRANT CERTIFICATE

 

	NUMBER	 	[  ] WARRANTS
	WA-	 	 

 

(THIS
WARRANT WILL BE VOID IF NOT EXERCISED PRIOR TO 5:00 P.M.

NEW
YORK CITY TIME, FIVE YEARS FROM THE CLOSING DATE OF THE COMPANY’S INITIAL

BUSINESS
COMBINATION)

 

KAIROUS
ACQUISITION CORP. LIMITED

 

CUSIP
[*]

 

WARRANT

 

THIS
WARRANT CERTIFIES THAT, for value received                             ,
or registered agents, is the registered holder of a Warrant or Warrants (the “Warrant”), expiring on a date which is five
(5) years from the completion of the Company’s initial business combination, to purchase one fully paid and non-assessable ordinary
share (the “Warrant Shares”), with a par value $0.0001 per share, of KAIROUS ACQUISITION CORP. LIMITED, a Cayman Islands
company (the “Company”), for each whole Warrant evidenced by this Warrant Certificate. This Warrant Certificate is subject
to and shall be interpreted under the terms and conditions of the Warrant Agreement (as defined below).

 

No
fractional Warrants will be issued upon separation of the units and only whole Warrants will trade. The Company will not issue fractional
shares and Warrants may be exercised only for a whole number of shares. If, upon the exercise of Warrant, a holder would be entitled
to receive a fractional interest in a share, the Company will, upon exercise, round down to the nearest whole number of the number of
shares of Warrant Share to be issued to the holder. The number of shares of Warrant Share issuable upon exercise of the Warrants is subject
to adjustment upon the occurrence of certain events set forth in the Warrant Agreement.

 

The
Warrant entitles the holder thereof to purchase from the Company, from time to time, in whole or in part, commencing 30 days after the
completion of the Company’s initial business combination, such number of Warrant Shares at the price of $11.50 per full share (the
“Warrant Price”), upon surrender of this Warrant Certificate and payment of the Warrant Price at the office or agency of
Continental Stock Transfer & Trust Company (the “Warrant Agent”), such payment to be made subject to the conditions set
forth herein and in the Warrant Agreement, dated [●], 2021, between the Company and the Warrant Agent (the “Warrant Agreement”).
The Warrants may be exercised on cashless basis as set forth in the Warrant Agreement and such exercise is exempt from registration under
the Securities Act of 1933, as amended. 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 be adjusted, subject to certain conditions.
The term Warrant Price as used in this Warrant Certificate refers to the price per full Warrant Share at which Warrant Shares may be
purchased at the time the Warrant is exercised.

 

This
Warrant will expire on the date first referenced above 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.

 

Upon
any exercise of the Warrant for less than the total number of full Warrant Shares provided for herein, there shall be issued to the registered
holder(s) hereof or its assignee(s) a new Warrant Certificate covering the number of Warrant Shares for which the Warrant has not been
exercised.

 

Warrant
Certificates, when surrendered at the office or agency of the Warrant Agent by the registered holder(s) 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 Warrants shall be issued to the transferee(s)
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(s) as the absolute owner(s) 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(s), and for all other purposes, and neither the Company nor the Warrant Agent shall be affected by any notice to the
contrary.

 

This
Warrant does not entitle the registered holder(s) to any of the rights of a shareholder of the Company.

 

The
Company reserves the right to call the Warrant at any time prior to its exercise with a notice of call in writing to the holders of record
of the Warrant, giving at least 30 days’ notice of such call, at any time while the Warrant is exercisable, if the last sale price
of the Shares has been at least $16.50 per share (the “Redemption Trigger Price”) on each of 20 trading days within any 30
trading day period (the “30-day trading period”) ending on the third business day prior to the date on which notice of such
call is given and if, and only if, there is a current registration statement in effect with respect to the Shares underlying the Warrants
for the entire 30-day trading period and continuing each day thereafter until the date of redemption. The call price of the Warrants
is to be $0.01 per Warrant. Any 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 $0.01 call price.

 

COUNTERSIGNED:

CONTINENTAL
STOCK TRANSFER & TRUST COMPANY,

WARRANT
AGENT

 

	BY:___________________________________	 
	AUTHORIZED
    OFFICER
	 
	DATED:_______________________________	 

 

(Signature)

CHIEF
EXECUTIVE OFFICER

 

(Seal)

 

(Signature)

SECRETARY

 

    	 

    	 

    

 

[REVERSE
OF CERTIFICATE]

SUBSCRIPTION
FORM

 

To
Be Executed by the Registered Holder(s) in Order to Exercise Warrants

 

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

 

	 
	(PLEASE
    TYPE OR PRINT NAME(S) AND ADDRESS)
	 
	 
	 
	 
	 
	 
	(SOCIAL
    SECURITY OR TAX IDENTIFICATION NUMBER(S))

 

	 	 	 
	and be delivered to	 	 
	 	 	(PLEASE PRINT OR TYPE NAME(S) AND ADDRESS)

 

and,
if such number of Warrants shall not be all the Warrants evidenced by this Warrant Certificate, that a new Warrant Certificate for the
balance of such Warrants be registered in the name of, and delivered to, the registered holder(s) at the address(es) stated below:

 

Dated:

 

	 	 
	 	 
	(SIGNATURE(S))	 
	 	 
	 	 
	(ADDRESS(ES))	 
	 	 
	 	 
	 	 
	 	 
	(TAX
    IDENTIFICATION NUMBER(S))	 

 

    	 

    	 

    

 

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 NAME(S) AND ADDRESS(ES))	 	 
	 	 	 
	 	 	 
	 	 	 
	 	 	 

(SOCIAL
SECURITY OR TAX IDENTIFICATION NUMBER(S))

 

	 	 	 	 	 
	and to be delivered to	 	 	 	 
	 	 	(PLEASE PRINT OR TYPE NAME(S) AND ADDRESS(ES))	 	 
	 	 	 	 	 
	 	 	 
	 	 	 
	 	 	 

(SOCIAL
SECURITY OR TAX IDENTIFICATION NUMBER(S))

 

of
the Warrants represented by this Warrant Certificate, and hereby irrevocably constitute and appoint
                 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:

 

	 	 	 
	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).Exhibit
4.4

 

SPECIMEN
RIGHT CERTIFICATE

 

	NUMBER	 	[    ]
    RIGHTS
	[    ]	 	 

 

KAIROUS
ACQUISITION CORP. LIMITED

 

INCORPORATED
UNDER THE LAWS OF THE CAYMAN ISLANDS

 

SEE
REVERSE FOR

CERTAIN
DEFINITIONS

 

CUSIP
[*]

 

RIGHT

 

THIS
CERTIFIES THAT, for value received                   , or registered agents, is the registered holder of a right or rights (the “Right”) to
automatically receive one-tenth of one ordinary share, with a par value $0.0001 per share (“Ordinary Share”), of Kairous
Acquisition Corp. Limited (the “Company”) for each Right evidenced by this Rights Certificate on the Company’s completion
of an initial business combination (as defined in the prospectus relating to the Company’s initial public offering (“Prospectus”))
upon surrender of this Right Certificate pursuant to the Rights Agreement between the Company and Continental Stock Transfer & Trust
Company, as Rights Agent. In no event will the Company be required to net cash settle any Right.

 

Upon
liquidation of the Company in the event an initial business combination is not consummated during the required period as identified in
the Company’s Amended and Restated Memorandum and Articles of Association, the Right shall expire and be worthless. The holder
of a Right shall have no right or interest of any kind in the Company’s trust account (as defined in the Prospectus).

 

Upon
due presentment for registration of transfer of the Right Certificate at the office or agency of the Rights Agent, a new Right Certificate
or Right Certificates of like tenor and evidencing in the aggregate a like number of Rights shall be issued to the transferee in exchange
for this Right Certificate, without charge except for any applicable tax or other governmental charge. The Company shall not issue fractional
shares upon exchange of Rights. The Company reserves the right to deal with any fractional entitlement at the relevant time in any manner
(as provided in the Rights Agreement).

 

The
Company and the Rights Agent may deem and treat the registered holder as the absolute owner of this Right Certificate (notwithstanding
any notation of ownership or other writing hereon made by anyone), for the purpose of any conversion hereof, of any distribution to the
registered holder, and for all other purposes, and neither the Company nor the Right Agent shall be affected by any notice to the contrary.

 

This
Right does not entitle the registered holder to any of the rights of a shareholder of the Company.

 

Dated:

 

		 	
	Chairman
    	 	Chief
    Financial Officer

 

    	 

     

    

 

[REVERSE
OF CERTIFICATE]

 

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.

 

    	 

     

    

 

KAIROUS
ACQUISITION CORP. LIMITED

 

The
Company will furnish without charge to each shareholder who so requests the powers, designations, preferences and relative, participating,
optional or other special rights of each class of share or series thereof of the Company and the qualifications, limitations, or restrictions
of such preferences and/or rights. This certificate and the rights represented thereby are issued and shall be held subject to all the
provisions of the Amended and Restated Memorandum and Articles of Association and all amendments thereto and resolutions of the Board
of Directors providing for the issuance of Ordinary Shares (copies of which may be obtained from the secretary of the Company), to all
of which the holder of this certificate by acceptance hereof assents.

 

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

 

	PLEASE
    INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE	 
	 	 
	 	 

	 

                                                                                 

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

                                                                                

	rights
    represented by the within Certificate, and do hereby irrevocably constitute and appoint
	 
	 
	Attorney
    to transfer the said rights on the books of the within named Corporation 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) 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 have no right or interest of any kind in or to the funds held in the Company’s trust account (as
defined in the Prospectus).

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