# EDGAR Filing Document

**Accession Number:** 0000844965
**File Stem:** 0001193125-26-072095
**Filing Date:** 2026-2
**Character Count:** 31513
**Document Hash:** 55461e6a6385c9da90a869fe296d5480
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-072095.hdr.sgml**: 20260225

**ACCESSION NUMBER**: 0001193125-26-072095

**CONFORMED SUBMISSION TYPE**: 8-A12B/A

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20260225

**DATE AS OF CHANGE**: 20260225

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** TETRA TECHNOLOGIES INC
- **CENTRAL INDEX KEY:** 0000844965
- **STANDARD INDUSTRIAL CLASSIFICATION:** CRUDE PETROLEUM & NATURAL GAS [1311]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 742148293
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-A12B/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-13455
- **FILM NUMBER:** 26680164

**BUSINESS ADDRESS:**
- **STREET 1:** 10000 ENERGY DRIVE
- **STREET 2:** SUITE 600, BOX 4
- **CITY:** SPRING
- **STATE:** TX
- **ZIP:** 77389
- **BUSINESS PHONE:** 281-367-1983

**MAIL ADDRESS:**
- **STREET 1:** 10000 ENERGY DRIVE
- **STREET 2:** SUITE 600, BOX 4
- **CITY:** SPRING
- **STATE:** TX
- **ZIP:** 77389

**UNITED STATES** 

**SECURITIES AND EXCHANGE COMMISSION** 

**Washington, D.C. 20549** 

**FORM 8-A/A** 

**Amendment No. 1** 

**FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES** 

**PURSUANT TO SECTION 12(b) OR 12(g) OF** 

**THE SECURITIES EXCHANGE ACT OF 1934** 

## TETRA Technologies, Inc.
**(Exact name of registrant as specified in its charter)** 

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| | |
|:---|:---|
| **Delaware** | **74-2148293** |
| **(State or Other Jurisdiction of<br>Incorporation)** | **(I.R.S. Employer<br>Identification No.)** |
| **10000 Energy Drive<br>Spring, Texas 77389** | **10000 Energy Drive<br>Spring, Texas 77389** |
| **(Address of Principal Executive Offices, and Zip Code)** | **(Address of Principal Executive Offices, and Zip Code)** |

---

**Securities to be registered pursuant to Section 12(b) of the Act:** 

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| | | |
|:---|:---|:---|
| **Title of each class to be registered** | **Trading<br>Symbol(s)** | **Name of each exchange<br>on which each class is to be registered** |
| **Preferred Stock Purchase Rights** | **N/A** | **New York Stock Exchange** |

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If this form relates to the registration of a class of securities pursuant to Section 12(b) of the Exchange Act and is effective pursuant to General Instruction A.(c) or (e), check the following box. ☑

If this form relates to the registration of a class of securities pursuant to Section 12(g) of the Exchange Act and is effective pursuant to General Instruction A.(d) or (e), check the following box. ☐

If this form relates to the registration of a class of securities concurrently with a Regulation A offering, check the following box. ☐

Securities Act registration statement or Regulation A offering statement file number to which this form relates: N/A.

Securities to be registered pursuant to Section 12(g) of the Act: None.

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**Item 1.** **Description of Registrant's Securities to be Registered.** <br>

This Form 8-A/A amends the registration statement on Form 8-A filed on March 1, 2023 (the "Original 8-A") by TETRA Technologies, Inc. (the "Company") with the Securities and Exchange Commission relating to preferred stock purchase rights under the Tax Benefit Preservation Plan, dated as of February 28, 2023 (the "Tax Plan"), by and between the Company and Computershare Trust Company, N.A., as rights agent.

On February 25, 2026, effective as of February 28, 2026, the Company entered into Amendment No. 1 (the "Amendment") to the Tax Plan. The Amendment extends the expiration date of the Plan from February 28, 2026 to February 28, 2029 (subject to other earlier termination events).

The Tax Plan is described in and included as an exhibit to the Original 8-A, and such descriptions, as amended hereby, are incorporated by reference herein. The foregoing description of the Amendment is qualified in its entirety by reference to the full text of the Amendment, attached hereto as Exhibit 4.2 and incorporated herein by reference.

**Item 2.** **Exhibits.** <br>

The following exhibits to the Registration Statement on Form 8-A are filed herewith or incorporated by reference from the documents specified

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| | |
|:---|:---|
| **Exhibit<br>No.** | **Description** |
| 3.1 | [Certificate of Designations of Series A Junior Participating Preferred Stock of TETRA Technologies, Inc., filed with the Secretary of State of the State of Delaware on February 25, 2026.](d88690dex31.htm) |
| 4.1 | Tax Benefit Preservation Plan, dated as of February 28, 2023, between TETRA Technologies, Inc. and Computershare Trust Company, N.A., which includes the Form of Certificate of Designations of Series A Junior Participating Preferred Stock as Exhibit A and the Form of Right Certificate as Exhibit B (incorporated by reference to Exhibit 4.1 of the Current Report on [Form 8-K](http://www.sec.gov/Archives/edgar/data/844965/000156459023002827/tti-ex41_7.htm) dated February 28, 2023 of TETRA Technologies, Inc.). |
| 4.2 | [Amendment No. 1 to the Tax Benefit Preservation Plan, dated as of February 25, 2026, effective as of February 28, 2026, between TETRA Technologies, Inc. and Computershare Trust Company, N.A., as rights agent.](d88690dex42.htm) |

---

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**SIGNATURES** 

Pursuant to the requirements of Section 12 of the Securities Exchange Act of 1934, the registrant has duly caused this registration statement to be signed on its behalf by the undersigned, thereto duly authorized.

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| | | | |
|:---|:---|:---|:---|
|  | TETRA TECHNOLOGIES INC. | TETRA TECHNOLOGIES INC. | TETRA TECHNOLOGIES INC. |
| Date: February 25, 2026 | By: | /s/ Brady M. Murphy | /s/ Brady M. Murphy |
|  |  | Name: | Brady M. Murphy |
|  |  | Title: | President and Chief Executive Officer |

---

## Exhibit 3.1

**Exhibit 3.1** 

CERTIFICATE OF DESIGNATION

of

SERIES A JUNIOR PARTICIPATING PREFERRED STOCK

of

**TETRA TECHNOLOGIES, INC.** 

Pursuant to Section 151 of the General Corporation

Law of the State of Delaware

TETRA Technologies, Inc., a corporation organized and existing under the laws of the State of Delaware (the "*Corporation*"), in accordance with the provisions of Section 103 thereof, DOES HEREBY CERTIFY:

That, pursuant to the authority vested in the Board of Directors of the Corporation (the "*Board of Directors*") in accordance with the provisions of the Certificate of Incorporation of the Corporation, as heretofore amended (the "*Certificate of Incorporation*"), the Board of Directors on February 23, 2023 adopted the following resolution creating a series of 260,000 shares of Preferred Stock designated as "Series A Junior Participating Preferred Stock":

RESOLVED, that pursuant to the authority vested in the Board of Directors of this Corporation in accordance with the provisions of the Certificate of Incorporation, a series of Preferred Stock, par value $0.01 per share, of the Corporation be and hereby is created, and that the designation and number of shares thereof and the voting and other powers, preferences and relative, participating, optional or other rights of the shares of such series and the qualifications, limitations and restrictions thereof are as follows:

**<u>Series A Junior Participating Preferred Stock</u>**

1. *Designation and Amount*. There shall be a series of Preferred Stock that shall be designated as "Series A Junior Participating Preferred Stock," and the number of shares constituting such series shall be 260,000. Such number of shares may be increased or decreased by resolution of the Board of Directors; provided, however, that no decrease shall reduce the number of shares of Series A Junior Participating Preferred Stock to less than the number of shares then issued and outstanding plus the number of shares issuable upon exercise of outstanding rights, options or warrants or upon conversion of outstanding securities issued by the Corporation.

2. *Dividends and Distributions.*

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(A) Subject to the prior and superior rights of the holders of any shares of any class or series of stock of the Corporation ranking prior and superior to the shares of Series A Junior Participating Preferred Stock with respect to dividends, the holders of shares of Series A Junior Participating Preferred Stock, in preference to the holders of shares of any class or series of stock of the Corporation ranking junior to the Series A Junior Participating Preferred Stock in respect thereof, shall be entitled to receive, when, as and if declared by the Board of Directors out of funds legally available for the purpose, quarterly dividends payable in cash on the 15<sup>th</sup> day of March, June, September and December, in each year (each such date being referred to herein as a "*Quarterly Dividend Payment Date*"), commencing on the first Quarterly Dividend Payment Date

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after the first issuance of a share or fraction of a share of Series A Junior Participating Preferred Stock, in an amount per share (rounded to the nearest cent) equal to the sum of (1) the Adjustment Number (as defined below) times the aggregate per share amount of all cash dividends, plus (2) the Adjustment Number times the aggregate per share amount (payable in kind) of all non-cash dividends or other distributions other than a dividend payable in shares of Common Stock, par value $0.01 per share, of the Corporation (the "*Common Stock*"), or a subdivision of the outstanding shares of Common Stock (by reclassification or otherwise), in each case declared on the Common Stock since the immediately preceding Quarterly Dividend Payment Date, or, with respect to the first Quarterly Dividend Payment Date, since the first issuance of any share or fraction of a share of Series A Junior Participating Preferred Stock. The "*Adjustment Number*" shall initially be 1,000. In the event the Corporation shall at any time after March 10, 2023 (i) declare and pay any dividend on Common Stock payable in shares of Common Stock, (ii) subdivide the outstanding Common Stock or (iii) combine the outstanding Common Stock into a smaller number of shares, then in each such case the Adjustment Number in effect immediately prior to such event shall be adjusted by multiplying such Adjustment Number by a fraction the numerator of which is the number of shares of Common Stock outstanding immediately after such event and the denominator of which is the number of shares of Common Stock that were outstanding immediately prior to such event.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(B) The Corporation shall declare a dividend or distribution on the Series A Junior Participating Preferred Stock as provided in <u>paragraph</u> <u>(A)</u> above immediately after it declares a dividend or distribution on the Common Stock (other than a dividend payable in shares of Common Stock).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(C) Dividends shall begin to accrue and be cumulative on outstanding shares of Series A Junior Participating Preferred Stock from the Quarterly Dividend Payment Date next preceding the date of issue of such shares of Series A Junior Participating Preferred Stock, unless the date of issue of such shares is prior to the record date for the first Quarterly Dividend Payment Date; in which case dividends on such shares shall begin to accrue from the date of issue of such shares, or unless the date of issue is a Quarterly Dividend Payment Date or is a date after the record date for the determination of holders of shares of Series A Junior Participating Preferred Stock entitled to receive a quarterly dividend and before such Quarterly Dividend Payment Date, in either of which events such dividends shall begin to accrue and be cumulative from such Quarterly Dividend Payment Date. Accrued but unpaid dividends shall not bear interest. Dividends paid on the shares of Series A Junior Participating Preferred Stock in an amount less than the total amount of such dividends at the time accrued and payable on such shares shall be allocated pro rata on a share-by-share basis among all such shares at the time outstanding. The Board of Directors may fix a record date for the determination of holders of shares of Series A Junior Participating Preferred Stock entitled to receive payment of a dividend or distribution declared thereon, which record date shall be no more than 60 days prior to the date fixed for the payment thereof.

3. *Voting Rights.* The holders of shares of Series A Junior Participating Preferred Stock shall have the following voting rights:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(A) Each share of Series A Junior Participating Preferred Stock shall entitle the holder thereof to a number of votes equal to the Adjustment Number on all matters submitted to a vote of the stockholders of the Corporation.

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(B) Except as required by law, by <u>paragraph</u> <u>(C)</u> of this <u>Section</u> <u>3</u> and by <u>Section</u> <u>10</u> hereof, holders of Series A Junior Participating Preferred Stock shall have no special voting rights and their consent shall not be required (except to the extent they are entitled to vote with holders of Common Stock as set forth herein) for taking any corporate action.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(C) If, at the time of any annual meeting of stockholders for the election of directors, the equivalent of six quarterly dividends (whether or not consecutive) payable on any share or shares of Series A Junior Participating Preferred Stock are in default, the number of directors constituting the Board of Directors shall be increased by two. In addition to voting together with the holders of Common Stock for the election of other directors of the Corporation, the holders of record of the Series A Junior Participating Preferred Stock, voting separately as a class to the exclusion of the holders of Common Stock, shall be entitled at said meeting of stockholders (and at each subsequent annual meeting of stockholders), unless all dividends in arrears on the Series A Junior Participating Preferred Stock have been paid or declared and set apart for payment prior thereto, to vote for the election of two directors of the Corporation, the holders of any Series A Junior Participating Preferred Stock being entitled to cast a number of votes per share of Series A Junior Participating Preferred Stock as is specified in <u>paragraph</u> <u>(A)</u> of this <u>Section</u> <u>3</u>. To the extent the Board of Directors is divided into classes, with the directors in the classes serving staggered terms, at the time of the election of directors elected by the holders of the Series A Junior Participating Preferred Stock pursuant hereto, each such additional director shall not be a member of any such class, but shall serve until the next annual meeting of stockholders for the election of directors, or until his successor shall be elected and shall qualify, or until his right to hold such office terminates pursuant to the provisions of this <u>Section</u> <u>3(C)</u>. Until the default in payments of all dividends which permitted the election of said directors shall cease to exist, any director who shall have been so elected pursuant to the provisions of this <u>Section</u> <u>3(C)</u> may be removed at any time, without cause, only by the affirmative vote of the holders of the shares of Series A Junior Participating Preferred Stock at the time entitled to cast a majority of the votes entitled to be cast for the election of any such director at a special meeting of such holders called for that purpose, and any vacancy thereby created may be filled by the vote of such holders. If and when such default shall cease to exist, the holders of the Series A Junior Participating Preferred Stock shall be divested of the foregoing special voting rights, subject to revesting in the event of each and every subsequent like default in payments of dividends. Upon the termination of the foregoing special voting rights, the terms of office of all persons who may have been elected directors pursuant to said special voting rights shall forthwith terminate, and the number of directors constituting the Board of Directors shall be reduced by two. The voting rights granted by this <u>Section</u> <u>3(C)</u> shall be in addition to any other voting rights granted to the holders of the Series A Junior Participating Preferred Stock in this <u>Section</u> <u>3</u>.

4. *Certain Restrictions.*

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(A) Whenever quarterly dividends or other dividends or distributions payable on the Series A Junior Participating Preferred Stock as provided in <u>Section</u> <u>2</u> are in arrears, thereafter and until all accrued and unpaid dividends and distributions, whether or not declared, on shares of Series A Junior Participating Preferred Stock outstanding shall have been paid in full, the Corporation shall not:

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i) declare or pay dividends on, make any other distributions on, or redeem or purchase or otherwise acquire for consideration any shares of stock ranking junior (either as to dividends or upon liquidation, dissolution or winding up) to the Series A Junior Participating Preferred Stock other than (A) such redemptions or purchases that may be deemed to occur upon the exercise of stock options, warrants or similar rights or grant, vesting or lapse of restrictions on the grant of any other performance shares, restricted stock, restricted stock units or other equity awards to the extent that such shares represent all or a portion of (x) the exercise or purchase price of such options, warrants or similar rights or other equity awards and (y) the amount of withholding taxes owed by the recipient of such award in respect of such grant, exercise, vesting or lapse of restrictions; (B) the repurchase, redemption, or other acquisition or retirement for value of any such shares from employees, former employees, directors, former directors, consultants or former consultants of the Corporation or their respective estate, spouse, former spouse or family member, pursuant to the terms of the agreements pursuant to which such shares were acquired;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii) declare or pay dividends on or make any other distributions on any shares of stock ranking on a parity (either as to dividends or upon liquidation, dissolution or winding up) with the Series A Junior Participating Preferred Stock, except dividends paid ratably on the Series A Junior Participating Preferred Stock and all such parity stock on which dividends are payable or in arrears in proportion to the total amounts to which the holders of all such shares are then entitled; or

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iii) purchase or otherwise acquire for consideration any shares of Series A Junior Participating Preferred Stock, or any shares of stock ranking on a parity with the Series A Junior Participating Preferred Stock, except in accordance with a purchase offer made in writing or by publication (as determined by the Board of Directors) to all holders of Series A Junior Participating Preferred Stock, or to such holders and holders of any such shares ranking on a parity therewith, upon such terms as the Board of Directors, after consideration of the respective annual dividend rates and other relative rights and preferences of the respective series and classes, shall determine will result in fair and equitable treatment among the respective series or classes.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(B) The Corporation shall not permit any subsidiary of the Corporation to purchase or otherwise acquire for consideration any shares of stock of the Corporation unless the Corporation could, under <u>paragraph</u> <u>(A)</u> of this <u>Section</u> <u>4</u>, purchase or otherwise acquire such shares at such time and in such manner.

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6. *Liquidation, Dissolution or Winding Up*.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(A) Upon any liquidation, dissolution or winding up of the Corporation, voluntary or otherwise, no distribution shall be made to the holders of shares of stock ranking junior (either as to dividends or upon liquidation, dissolution or winding up) to the Series A Junior Participating Preferred Stock unless, prior thereto, the holders of shares of Series A Junior Participating Preferred Stock shall have received an amount per share (the "*Series A Liquidation Preference*") equal to the greater of (i) $10.00 plus an amount equal to accrued and unpaid dividends and distributions thereon, whether or not declared, to the date of such payment, and (ii) the Adjustment Number times the per share amount of all cash and other property to be distributed in respect of the Common Stock upon such liquidation, dissolution or winding up of the Corporation.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(B) In the event, however, that there are not sufficient assets available to permit payment in full of the Series A Liquidation Preference and the liquidation preferences of all other classes and series of stock of the Corporation, if any, that rank on a parity with the Series A Junior Participating Preferred Stock in respect thereof, then the assets available for such distribution shall be distributed ratably to the holders of the Series A Junior Participating Preferred Stock and the holders of such parity shares in proportion to their respective liquidation preferences.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(C) Neither the merger or consolidation of the Corporation into or with another entity nor the merger or consolidation of any other entity into or with the Corporation shall be deemed to be a liquidation, dissolution or winding up of the Corporation within the meaning of this <u>Section</u> <u>6</u>.

7. *Consolidation, Merger, Etc.* In case the Corporation shall enter into any consolidation, merger, combination or other transaction in which the outstanding shares of Common Stock are exchanged for or changed into other stock or securities, cash and/or any other property, then in any such case each share of Series A Junior Participating Preferred Stock shall at the same time be similarly exchanged or changed in an amount per share equal to the Adjustment Number times the aggregate amount of stock, securities, cash and/or any other property (payable in kind), as the case may be, into which or for which each share of Common Stock is changed or exchanged.

8. *No Redemption.* Shares of Series A Junior Participating Preferred Stock shall not be subject to redemption by the Corporation.

9. *Ranking.* The Series A Junior Participating Preferred Stock shall rank junior to all other series of Preferred Stock as to the payment of dividends and as to the distribution of assets upon liquidation, dissolution or winding up, unless the terms of any such series shall provide otherwise, and shall rank senior to the Common Stock as to such matters.

10. *Amendment.* At any time that any shares of Series A Junior Participating Preferred Stock are outstanding, the Certificate of Incorporation of the Corporation shall not be amended, by merger, consolidation or otherwise, which would materially alter or change the powers, preferences or special rights of the Series A Junior Participating Preferred Stock so as to affect them adversely without the affirmative vote of the holders of two-thirds of the outstanding shares of Series A Junior Participating Preferred Stock, voting separately as a class.

11. *Fractional Shares.* Series A Junior Participating Preferred Stock may be issued in fractions of a share that shall entitle the holder, in proportion to such holder's fractional shares, to exercise voting rights, receive dividends, participate in distributions and to have the benefit of all other rights of holders of Series A Junior Participating Preferred Stock.

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IN WITNESS WHEREOF, the undersigned has executed this Certificate this 25<sup>th</sup> day of February, 2026.

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| | |
|:---|:---|
| **TETRA TECHNOLOGIES, INC**. | **TETRA TECHNOLOGIES, INC**. |
| By: | /s/Brady M. Murphy |
|  | Name: Brady M. Murphy |
|  | Title: President and Chief Executive Officer |

---

*Signature Page to Certificate of Designation*

## Exhibit 4.2

**Exhibit 4.2** 

**AMENDMENT NO. 1 TO TAX BENEFITS PRESERVATION PLAN** 

This Amendment No. 1 to the Tax Benefits Preservation Plan (this "*Amendment*") is made and entered into as of February 25, 2026, effective as of February 28, 2026, by and between TETRA Technologies, Inc., a Delaware corporation (the "*Company*"), and Computershare Trust Company, N.A., a federally chartered trust company, as Rights Agent (the "*Rights Agent*"), and amends that certain Tax Benefits Preservation Plan, dated as of February 28, 2023 (the "*Plan*"), by and between the Company and the Rights Agent. All capitalized terms used but not defined herein shall have the meanings given to such terms in the Plan.

WHEREAS, in order to continue the protection of the Company's Tax Attributes provided by the Plan, the Board of Directors of the Company has determined it advisable and in the best interests of the Company and its stockholders to amend certain provisions of the Plan;

WHEREAS, Section 25 of the Plan provides that for so long as the Rights are redeemable, the Company may in its sole and absolute discretion, and the Rights Agent shall, if the Company so directs, supplement or amend any provision of this Plan in any respect without the approval of any holders of Rights or Common Stock.;

WHEREAS, this Amendment is permitted by Section 25 of the Plan, and the Company desires to amend the Plan as set forth below; and

WHEREAS, pursuant to Section 25 of the Plan, the Company hereby directs that the Plan shall be amended as set forth in this Amendment.

NOW, THEREFORE, in consideration of the foregoing premises and mutual covenants and agreements set forth herein, and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the Company and the Rights Agent hereby agree as follows:

Section 1. <u>Amendments to Section</u> <u>7</u>. Section 7.1 of the Plan is hereby amended and restated in its entirety as follows:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.1 <u>Exercise of Rights</u>. Subject to <u>Section</u> <u>11.1.2</u> and except as otherwise provided herein, the registered holder of any Right Certificate may exercise the Rights evidenced thereby in whole or in part at any time after the Distribution Date upon surrender of the Right Certificate, with the form of election to purchase and certification on the reverse side thereof duly executed, to the Rights Agent at the office of the Rights Agent designated for such purpose accompanied by a Signature Guarantee, and any other reasonable evidence of authority that may be reasonably required by the Rights Agent, together with payment of the aggregate Purchase Price for the total number of one one-thousandths of a share of Preferred Stock (or other securities, cash or other assets) as to which the Rights are exercised, at or prior to the time that is the earliest of (i) the close of business on February 28, 2029 (the "*Final Expiration Date*"), (ii) the time at which the Rights are redeemed as provided in <u>Section 22</u> (the "*Redemption Date*"), (iii) the time at which the Rights are exchanged as provided in <u>Section 26</u>, (iv) the closing of any merger or other acquisition transaction involving the Company pursuant to an agreement of the type described in the penultimate paragraph of <u>Section</u> <u>1.3</u>, (v) the close of business on the effective date of the

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repeal of Section 382 of the Code if the Board determines that this Plan is no longer necessary or desirable for the preservation of the Tax Attributes and (vi) the close of business on the first day of a taxable year of the Company following a Board determination that no Tax Attributes may be carried forward or otherwise utilized (the earliest of (i), (ii), (iii), (iv), (v) and (vi), the "*Expiration Date*").

Section 2. <u>Amendment to Section</u> <u>24</u>. Section 24 of the Plan is hereby amended to change the Company's address as follows:

TETRA Technologies, Inc.

10000 Energy Drive, Suite 600, Box 4

Spring, TX 77389

Attn: Corporate Secretary

Section 3. <u>Amendments to Exhibits</u>. All references to the date of "February 28, 2026" in Exhibit B (the Form of Right Certificate) to the Plan shall hereby be changed to "February 28, 2029".

Section 4. <u>Amendment to Section</u> <u>30</u>. Section 30 of the Plan is hereby amended to add the following sentence at the end:

"Nothing in this Section is intended to modify, limit or waive the fiduciary duties of the Board of Directors under applicable law."

Section 5. <u>Effect of this Amendment</u>. It is the intent of the parties hereto that this Amendment constitutes an amendment of the Plan as contemplated by Section 25 thereof. This Amendment shall be deemed effective as of the date hereof as if executed by both parties hereto on such date. Except as expressly provided in this Amendment, the terms of the Plan shall remain in full force and effect.

Section 6. <u>Governing Law</u>. This Amendment shall be deemed to be a contract made under the internal laws of the State of Delaware and for all purposes shall be governed by and construed in accordance with the laws of such State applicable to contracts to be made and performed entirely within such State.

Section 7. <u>Severability</u>. If any term, provision, covenant or restriction of this Amendment is held by a court of competent jurisdiction or other authority to be invalid, void or unenforceable, the remainder of the terms, provisions, covenants and restrictions of this Plan shall remain in full force and effect and shall in no way be affected, impaired or invalidated.

Section 8. <u>Counterparts</u>. This Amendment may be executed in any number of counterparts and each of such counterparts shall for all purposes be deemed to be an original, and all such counterparts shall together constitute but one and the same instrument. A signature to this Amendment transmitted electronically shall have the same authority, effect and enforceability as an original signature.

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Section 9. <u>Descriptive Headings</u>. Descriptive headings of the several Sections of this Amendment are inserted for convenience only and shall not control or affect the meaning or construction of any of the provisions hereof.

[*Signature page follows.*]

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IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be duly executed as of the date first written above.

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| | |
|:---|:---|
| **TETRA TECHNOLOGIES, INC.** | **TETRA TECHNOLOGIES, INC.** |
| By: | /s/ Brady M. Murphy |
|  | Name: Brady M. Murphy |
|  | Title: President and Chief Executive Officer |
| **COMPUTERSHARE TRUST COMPANY, N.A.** | **COMPUTERSHARE TRUST COMPANY, N.A.** |
| By: | /s/ Patrick Hayes |
|  | Name: Patrick Hayes |
|  | Title: Manager, Client Management |

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*Amendment No. 1 to Tax Benefits Preservation Plan*