Specimen Unit Certificate

Exhibit 4.1

CUSIP [*]

UNITS CONSISTING OF ONE ORDINARY SHARE, ONE-HALF OF ONE WARRANT AND ONE RIGHT TO RECEIVE ONE-TENTH OF ONE ORDINARY SHARE

Each Unit (“Unit”) consists of one ordinary share, with a par value $0.0001 per share, of Kairous Acquisition Corp. Limited, a Cayman Islands company (the “Company”), one-half of one redeemable warrant (“Warrant”) and one right (“Right”) to receive one-tenth (1/10) of an ordinary share. Each whole redeemable Warrant entitles the holder thereof to purchase one ordinary share at a price of $11.50 per full share (subject to adjustment), upon 30 days after the Company’s completion of a merger, share exchange, asset acquisition, share purchase, recapitalization, reorganization or other similar business combination with one or more businesses or entities (a “Business Combination”). Every ten Rights entitles the holder thereof to receive one ordinary share upon consummation of the Company’s initial Business Combination. The ordinary shares, Warrants and Rights comprising the Units represented by this certificate are not transferable separately prior to the fifty-second (52^nd) day after the date of the prospectus relating to the Company’s initial public offering, unless Maxim Group LLC (“Maxim”) determines that an earlier date is acceptable, but in no event will the ordinary shares, Warrants and Rights 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 the over-allotment option is exercised after the date of the prospectus, we will file an amendment to the Form 8-K or a new Form 8-K to provide updated financial information to reflect the exercise of the over-allotment option. We will also include in the Form 8-K, or amendment thereto, or in a subsequent Form 8-K, information indicating if the underwriters has allowed separate trading of the ordinary shares, Warrants and Rights prior to the fifty-second (52^nd) day after the date of the prospectus.

The terms of the Warrants and Rights are governed by a warrant agreement (the “Warrant Agreement”), dated as of [●], 2021, and a rights agreement (the “Rights Agreement”), dated as of [●], 2021, respectively, both between the Company and Continental Stock Transfer & Trust Company, as the warrant agent and rights 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 Continental Stock Transfer & Trust Company at 1 State Street, 30th Floor, New York, NY 10004, and are available to any Warrant Holder or Rights 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.

This Unit Certificate shall be governed and construed in accordance with the internal laws of the State of New York, without regard to conflicts of laws principles thereof.

Kairous Acquisition Corp. Limited

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 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:

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

For value received, ___________________________ hereby sell(s), assign(s) and transfer(s) unto

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

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 __________________________

Signature(s) Guaranteed:

The holder of this certificate shall be entitled to receive funds with respect to the underlying ordinary shares 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 convert his or her respective ordinary shares underlying the unit 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.