TETRA Technologies, lnc.
Power of Attorney

Know all by these presents, that the undersigned hereby
constitutes and Kimberly M. O'Brien with full power of
substitution, 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 TETRA
Technologies, Inc. (the "Company") Form ID and Forms 3, 4, and 5
(including amendments thereto) in accordance with Section 16(a)
of the Securities Exchange Act of 1934 and the rules thereunder;

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 Form ID, 3, 4, or 5, complete and execute any
amendment or amendments thereto, and timely file such form with
the United States Securities and Exchange Commission and any
stock exchange, self-regulatory association or any other
authority, and provide a copy as required by law or as advisable
to such persons as the attorney-in-fact deems appropriate; and

3. take any other action of any type whatsoever in connection
with the foregoing which, in the opinion of each 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 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 forgoing 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 16 of the
Securities Exchange Act of 1934.

The undersigned further agrees that each such attorney-in-fact
may rely entirely on information furnished orally or in writing
by or at the direction of the undersigned to the 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
omissions of necessary facts in the information provided by or at
the direction of the undersigned, or upon the lack of timeliness
in the delivery of information by or at the direction of the
undersigned, to such attorney-in-fact for purposes of executing,
acknowledging, delivering or filing Form?3, 4 or 5 (including
amendments thereto).

This Power of Attorney shall remain in full force and effect
until the undersigned is no longer required to file Forms 3, 4,
and 5 (including amendments thereto) with respect to the
undersigned's holdings of and transactions in securities issued
by the Company, unless earlier revoked by the undersigned in a
signed writing delivered to the foregoing attorneys-in-fact. This
Power of Attorney revokes all other powers of attorney that the
undersigned has previously granted concerning the matters
described herein.

IN WITNESS WHEREOF, the undersigned has caused this Power of
Attorney to be executed as of this 23rd day of February, 2024.


/s/ Angela D. John
 Signature

Print Name: Anaela D. John