Specimen Warrant Certificate

Exhibit 4.3

SPECIMEN WARRANT CERTIFICATE

(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

(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

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:

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

(SOCIAL SECURITY OR TAX IDENTIFICATION NUMBER(S))

(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:

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:

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).