POWER OF ATTORNEY
Know all by these presents, that the undersigned hereby constitutes and
appoints each of (i) the Chief Executive Officer of Codexis, Inc., a
Delaware corporation (the "Company"), who is currently Stephen Dilly,
M.B.B.S., Ph.D., (ii) the Company's Senior Vice President, Legal, who is
currently Melanie Kitzan, Ph.D., and (iii) the Company's Controller, who
is currently Mercedes Reshke, and their respective successors, signing
singly, with full power of substitution and resubstitution, as the
undersigned's true and lawful attorney-in-fact to:
(1) execute for and on behalf of the undersigned, in the
undersigned's capacity as an officer and/or director of the Company,
(a) Schedules 13D and 13G in accordance with Section 13 of the
Securities Exchange Act of 1934, as amended (the "Exchange Act"), and
the rules thereunder, (b) Forms 3, 4 and 5 (including amendments
thereto) in accordance with Section 16(a) of Exchange Act and the
rules and regulations thereunder, (c) Notices of Proposed Sale of
Securities Pursuant to Rule 144 ("Form 144"), in accordance with the
requirements of Rule 144 under the Securities Act of 1933, as amended
(the "Securities Act") and (d) Form ID, Uniform Application for
Access Codes to File on EDGAR;
(2) do and perform any and all acts for and on behalf of the
undersigned which may be necessary or desirable to complete and
execute any such Schedule 13D, Schedule 13G, Forms 3, 4, 5 or 144 or
Form ID, or any amendment thereto, and timely file such forms
(including amendments thereto) and application with the United States
Securities and Exchange Commission and any stock exchange or similar
authority; and
(3) take any other action of any type whatsoever in connection
with the foregoing which, in the opinion of such attorney-in-fact,
may be of benefit to, in the best interest of, or legally required
by, the undersigned, it being understood that the documents executed
by such attorney-in-fact on behalf of the undersigned pursuant to
this Power of Attorney shall be in such form and shall contain such
terms and conditions as such attorney-in-fact may approve in such
attorney-in-fact's discretion.
The undersigned hereby grants to each such attorney-in-fact full
power and authority to do and perform any and every act and thing whatsoever
requisite, necessary or proper to be done in the exercise of any of the rights
and powers herein granted, as fully to all intents and purposes as the
undersigned might or could do if personally present, with full power of
substitution and resubstitution or revocation, hereby ratifying and confirming
all that such attorney-in-fact, or such attorney-in-fact's substitute or
substitutes, shall lawfully do or cause to be done by virtue of this power of
attorney and the rights and powers herein granted. The undersigned
acknowledges that the foregoing attorneys-in-fact, in serving in such capacity
at the request of the undersigned, are not assuming, nor is the Company
assuming, any of the undersigned's responsibilities to comply with Section 13
and 16 of the Exchange Act or Rule 144 under the Securities Act.
The undersigned agrees that each such attorney-in-fact herein may rely
entirely on information furnished orally or in writing by the undersigned to
such attorney-in-fact. The undersigned also agrees to indemnify and hold
harmless the Company and each such attorney-in-fact against any losses, claims,
damages or liabilities (or actions in these respects) that arise out of or are
based upon any untrue statements or omission of necessary facts in the
information provided by the undersigned to such attorney-in fact for purposes
of executing, acknowledging, delivering or filing Forms 3, 4, 5 or 144
(including amendments thereto) or Form ID and agrees to reimburse the Company
and such attorney-in-fact for any legal or other expenses reasonably incurred
in connection with investigating or defending against any such loss, claim,
damage, liability or action.
This Power of Attorney supersedes any power of attorney previously
executed by the undersigned regarding the purposes outlined in the first
paragraph hereof ("Prior Powers of Attorney"), and the authority of the
attorneys-in-fact named in any Prior Powers of Attorney is hereby revoked.
This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Schedule 13D or 13G and Forms 3, 4, 5
or 144 with respect to the undersigned's holdings of and transactions in
securities issued by the Company, unless earlier (a) revoked by the undersigned
in a signed writing delivered to the foregoing attorneys-in-fact or (b)
superseded by a new power of attorney regarding the purposes outlined in the
first paragraph hereof dated as of a later date.
IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to
be executed as of this 13th day of October, 2025.


/S/ GEORGIA ERBEZ