<SEC-DOCUMENT>0000844965-22-000025.txt : 20220628
<SEC-HEADER>0000844965-22-000025.hdr.sgml : 20220628
<ACCEPTANCE-DATETIME>20220628162108
ACCESSION NUMBER:		0000844965-22-000025
CONFORMED SUBMISSION TYPE:	11-K
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20211231
FILED AS OF DATE:		20220628
DATE AS OF CHANGE:		20220628

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TETRA TECHNOLOGIES INC
		CENTRAL INDEX KEY:			0000844965
		STANDARD INDUSTRIAL CLASSIFICATION:	CRUDE PETROLEUM & NATURAL GAS [1311]
		IRS NUMBER:				742148293
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		11-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13455
		FILM NUMBER:		221050399

	BUSINESS ADDRESS:	
		STREET 1:		24955 INTERSTATE 45 NORTH
		CITY:			THE WOODLANDS
		STATE:			TX
		ZIP:			77380
		BUSINESS PHONE:		2813671983

	MAIL ADDRESS:	
		STREET 1:		24955 INTERSTATE 45 NORTH
		CITY:			THE WOODLANDS
		STATE:			TX
		ZIP:			77380
</SEC-HEADER>
<DOCUMENT>
<TYPE>11-K
<SEQUENCE>1
<FILENAME>tti2021form11k.htm
<DESCRIPTION>11-K
<TEXT>
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<title>Document</title></head><body><div id="i9522f929f98a44bd9e42280840ff90d3_1"></div><div style="min-height:42.75pt;width:100%"><div><font><br></font></div></div><div style="margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:98.900%"></td><td style="width:0.1%"></td></tr><tr style="height:5pt"><td colspan="3" style="border-bottom:2pt solid #000000;padding:0 1pt"></td></tr></table></div><div style="text-align:center"><font><br></font></div><div style="text-align:center"><font><br></font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">UNITED STATES</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">SECURITIES AND EXCHANGE COMMISSION</font></div><div style="margin-bottom:9pt;text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">WASHINGTON, D.C. 20549</font></div><div style="margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:98.900%"></td><td style="width:0.1%"></td></tr><tr style="height:5pt"><td colspan="3" style="border-bottom:2pt solid #000000;padding:0 1pt"></td></tr></table></div><div style="text-align:center"><font><br></font></div><div style="text-align:center"><font><br></font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:8pt;font-weight:400;line-height:120%">&#160;</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">&#160;</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:16pt;font-weight:700;line-height:120%">FORM 11-K</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:14pt;font-weight:700;line-height:120%">&#160;</font></div><div style="text-indent:36pt"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">&#160;&#160;&#160;&#160;&#160;&#160;&#160;</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </font><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">(MARK ONE)</font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">&#160;</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">&#91;X&#93; ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">SECURITIES EXCHANGE ACT OF 1934</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">FOR THE FISCAL YEAR ENDED</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </font><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">DECEMBER&#160;31, 2021 </font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:700;line-height:120%">&#160;</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">OR</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:700;line-height:120%">&#160;</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">&#91;&#160;&#160; &#93;</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </font><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">SECURITIES EXCHANGE ACT OF 1934</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">FOR THE TRANSITION PERIOD FROM ____ TO ____</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:700;line-height:120%">&#160;</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">Commission File No. 1-13455</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">&#160;</font></div><div style="text-align:center;text-indent:18pt"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">A.</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </font><font style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">Full title of</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </font><font style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">the plan and address of the plan, if different from that of the issuer</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </font><font style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">named below&#58;</font></div><div style="text-align:center;text-indent:18pt"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:700;line-height:120%">&#160;</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:16pt;font-weight:700;line-height:120%">TETRA Technologies, Inc. 401(k) Retirement Plan</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:2pt;font-weight:700;line-height:120%">&#160;</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#160;</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#160;</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:4pt;font-weight:400;line-height:120%">&#160;</font></div><div style="text-align:center;text-indent:18pt"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">B.</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </font><font style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">Name of issuer of the securities held pursuant to the plan and the address of its principal executive office&#58;</font></div><div style="text-align:center;text-indent:18pt"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">&#160;</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">TETRA Technologies, Inc.</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">24955 Interstate 45 North</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">The Woodlands, Texas</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </font><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">77380</font></div><div style="text-align:center;text-indent:18pt"><font><br></font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">&#160;</font></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div><font><br></font></div></div></div><div id="i9522f929f98a44bd9e42280840ff90d3_4"></div><hr style="page-break-after:always"><div style="min-height:42.75pt;width:100%"><div><font><br></font></div></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">TABLE OF CONTENTS</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">&#160;</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">&#160;</font></div><div style="margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.853%"><tr><td style="width:1.0%"></td><td style="width:90.700%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:7.100%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Report of Independent Registered Public Accounting Firm</font></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:center"><font style="color:#0000ff;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%;text-decoration:underline"><a href="#i9522f929f98a44bd9e42280840ff90d3_7" style="color:#0000ff;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%;text-decoration:underline">2</a></font></div></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Audited Financial Statements</font></td><td colspan="3" style="padding:2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">&#160;</font></td></tr></table></div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.853%"><tr><td style="width:1.0%"></td><td style="width:8.270%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:81.330%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:7.100%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">&#160;</font></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Statements of Net Assets Available for Benefits at December 31, 2021 and 2020</font></div></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:center"><font style="color:#0000ff;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%;text-decoration:underline"><a href="#i9522f929f98a44bd9e42280840ff90d3_13" style="color:#0000ff;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%;text-decoration:underline">3</a></font></div></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">&#160;</font></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Statement of Changes in Net Assets Available for Benefits for the Year Ended December 31, 2021</font></div></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:center"><font style="color:#0000ff;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%;text-decoration:underline"><a href="#i9522f929f98a44bd9e42280840ff90d3_16" style="color:#0000ff;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%;text-decoration:underline">4</a></font></div></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">&#160;</font></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Notes to Financial Statements</font></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:center"><font style="color:#0000ff;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%;text-decoration:underline"><a href="#i9522f929f98a44bd9e42280840ff90d3_19" style="color:#0000ff;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%;text-decoration:underline">5</a></font></div></td></tr></table></div><div><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:120%">&#160;</font></div><div style="margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.853%"><tr><td style="width:1.0%"></td><td style="width:90.700%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:7.100%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Supplemental Schedule*</font></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">&#160;</font></td></tr></table></div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.853%"><tr><td style="width:1.0%"></td><td style="width:8.270%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:81.330%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:7.100%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">&#160;</font></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Schedule H, Line 4(i) &#8211; Schedule of Assets (Held at End of Year)</font></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:center"><font style="color:#0000ff;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%;text-decoration:underline"><a href="#i9522f929f98a44bd9e42280840ff90d3_49" style="color:#0000ff;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%;text-decoration:underline">12</a></font></div></td></tr></table></div><div><font><br></font></div><div style="margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.415%"><tr><td style="width:1.0%"></td><td style="width:8.164%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:81.400%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:7.136%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Exhibit</font></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:center"><font style="color:#0000ff;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%;text-decoration:underline"><a href="#i9522f929f98a44bd9e42280840ff90d3_55" style="color:#0000ff;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%;text-decoration:underline">13</a></font></div></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Times New 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style="width:8.164%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:75.517%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:13.019%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">*Note</font></td><td colspan="6" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Other schedules required by 29 CFR 2520.103-10 of the Department of Labor's Rules and Regulations for Reporting and Disclosure under the Employee Retirement Income Security Act of 1974, as amended, have been omitted because they are not applicable.</font></td></tr></table></div><div><font><br></font></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div><font><br></font></div></div></div><div id="i9522f929f98a44bd9e42280840ff90d3_7"></div><hr style="page-break-after:always"><div style="min-height:42.75pt;width:100%"><div><font><br></font></div></div><div style="margin-bottom:12pt;margin-top:6pt;text-align:justify"><font><br></font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Report of Independent</font><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </font><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Registered Public Accounting Firm</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">&#160;</font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">To the Plan Participants and the Plan Administrator of </font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">TETRA Technologies, Inc. 401(k) Retirement Plan</font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Woodlands, Texas</font></div><div><font><br></font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Opinion on the Financial Statements</font></div><div><font><br></font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We have audited the accompanying statements of net assets available for benefits of the TETRA Technologies, Inc. 401(k) Retirement Plan (the &#8220;Plan&#8221;) as of December&#160;31, 2021 and 2020, and the related statement of changes in net assets available for benefits for the year ended December&#160;31, 2021, and the related notes and schedule (collectively referred to as the &#8220;financial statements&#8221;). In our opinion, the financial statements present fairly, in all material respects, the net assets available for benefits of the Plan as of December&#160;31, 2021 and 2020, and the changes in net assets available for benefits for the year ended December&#160;31, 2021, in conformity with accounting principles generally accepted in the United States of America.</font></div><div><font><br></font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Basis for Opinion</font></div><div><font><br></font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">These financial statements are the responsibility of the Plan&#8217;s management. Our responsibility is to express an opinion on the Plan&#8217;s financial statements based on our audits. We are a public accounting firm registered with the Public Accounting Oversight Board (United States) (&#8220;PCAOB&#8221;) and are required to be independent with respect to the Plan in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.</font></div><div><font><br></font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud.  The Plan is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audits, we are required to obtain an understanding of internal control over financial reporting, but not for the purpose of expressing an opinion on the effectiveness of the Plan&#8217;s internal control over financial reporting. Accordingly, we express no such opinion.</font></div><div><font><br></font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.</font></div><div><font><br></font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Supplemental Information</font></div><div><font><br></font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The accompanying supplemental schedule of assets (held at end of year) as of December&#160;31, 2021 has been subjected to audit procedures performed in conjunction with the audit of the Plan&#8217;s financial statements. The supplemental information is the responsibility of the Plan&#8217;s management. Our audit procedures included determining whether the supplemental information reconciles to the financial statements or the underlying accounting and other records, as applicable, and performing procedures to test the completeness and accuracy of the information presented in the supplemental information. In forming our opinion on the supplemental information, we evaluated whether the supplemental information, including its form and content, is presented in conformity with the Department of Labor&#8217;s Rules and Regulations for Reporting and Disclosure under the Employee Retirement Income Security Act of 1974. In our opinion, the supplemental information is fairly stated, in all material respects, in relation to the financial statements as whole.</font></div><div style="text-align:justify"><font><br></font></div><div style="text-align:justify"><font><br></font></div><div style="margin-bottom:8pt"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:174%">&#47;s&#47; Calvetti Ferguson</font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We have served as the Plan&#8217;s auditor since 2020.</font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Houston, Texas</font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">June&#160;28, 2022</font></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">2</font></div></div></div><div id="i9522f929f98a44bd9e42280840ff90d3_10"></div><hr style="page-break-after:always"><div style="min-height:42.75pt;width:100%"><div><font><br></font></div></div><div style="text-align:center"><font><br></font></div><div id="i9522f929f98a44bd9e42280840ff90d3_13"></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">TETRA Technologies, Inc. 401(k) Retirement Plan</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">Statements of Net Assets Available for Benefits</font></div><div style="text-align:center"><font><br></font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:700;line-height:120%">&#160;</font><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:60.303%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:17.467%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:17.470%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:100%">December 31,</font></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:100%">2021</font></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:100%">2020</font></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:100%">ASSETS</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</font></td></tr><tr><td colspan="3" style="padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Investments at fair value</font></td><td colspan="3" style="padding:0 1pt"></td><td style="padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</font></td><td style="padding:2px 0;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">96,883,057&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td style="padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</font></td><td style="padding:2px 0;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">129,058,231&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Notes receivable from participants</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,533,197&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,603,380&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net assets available for benefits</font></td><td colspan="3" style="padding:0 1pt"></td><td style="border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</font></td><td style="border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">98,416,254&#160;</font></td><td style="border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td style="border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</font></td><td style="border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">131,661,611&#160;</font></td><td style="border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr></table></div><div><font><br></font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#160;</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">See accompanying Notes to Financial Statements.</font></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">3</font></div></div></div><div id="i9522f929f98a44bd9e42280840ff90d3_16"></div><hr style="page-break-after:always"><div style="min-height:42.75pt;width:100%"><div><font><br></font></div></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">TETRA Technologies, Inc. 401(k) Retirement Plan</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">Statement of Changes in Net Assets Available for Benefits</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">Year Ended December&#160;31, 2021 </font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">&#160;</font></div><div style="margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:80.332%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:17.468%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Additions&#58;</font></td><td colspan="3" style="padding:2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</font></td></tr><tr><td colspan="3" style="padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Participant contributions</font></td><td style="padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</font></td><td style="padding:2px 0;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">5,677,612&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Rollover contributions</font></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">586,818&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Interest and dividends</font></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">6,698,971&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Interest income on notes receivable from participants</font></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">112,725&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Other income</font></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">56,987&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net appreciation in fair value of investments</font></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">11,093,816&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total additions</font></td><td colspan="2" 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style="padding:2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</font></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Benefits paid to participants</font></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">14,607,500&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:2px 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style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(42,864,786)</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr style="height:14pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net decrease after transfers</font></td><td colspan="2" style="border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(33,245,357)</font></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font 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style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</font></td><td colspan="3" style="border-top:3pt double #000000;padding:2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</font></td></tr></table></div><div style="margin-top:3pt"><font><br></font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#160;</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">See accompanying Notes to Financial Statements.</font></div><div><font><br></font></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">4</font></div></div></div><div id="i9522f929f98a44bd9e42280840ff90d3_19"></div><hr style="page-break-after:always"><div style="min-height:42.75pt;width:100%"><div><font><br></font></div></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">TETRA Technologies, Inc. 401(k) Retirement Plan</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">Notes to Financial Statements</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">December&#160;31, 2021 </font></div><div><font><br></font></div><div id="i9522f929f98a44bd9e42280840ff90d3_22"></div><div style="margin-bottom:3pt;margin-top:6pt"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">1. Description of Plan</font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#160;</font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following description of the TETRA Technologies, Inc. 401(k) Retirement Plan, as amended and restated (the Plan) is provided for general information only. Participants should refer to the </font><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Plan Document</font><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> and </font><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Summary Plan</font><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </font><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Description</font><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> for a more complete description of the Plan&#8217;s provisions, a copy of which is available from TETRA Technologies, Inc. (the Company or Plan Administrator).</font></div><div><font><br></font></div><div style="text-align:justify"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">General</font></div><div style="text-align:justify"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">&#160;</font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Plan, which initially became effective January&#160;1, 1990, is a profit sharing plan as defined by Section&#160;401(a) of the Internal Revenue Code of 1986, as amended (the IRC) and contains a provision for salary reduction contributions under Section&#160;401(k) of the IRC. Effective January 1, 2021, the Plan and related Trust Agreement were amended and restated by adopting a pre-approved defined contribution plan. The Plan is subject to the provisions of the Employee Retirement Income Security Act of 1974, as amended (ERISA). The Company is the designated administrator of the Plan and the Plan is advised by the 401(k) Committee, which currently consists of certain employees of the Company. T. Rowe Price Trust Company (TRP or Trustee) is the trustee of the Plan.</font></div><div style="text-align:justify"><font><br></font></div><div style="text-align:justify"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Eligibility</font></div><div style="text-align:justify"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">&#160;</font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Employees who have attained age 18 are eligible to participate in the Plan beginning on the first day of any calendar month coincident with or following completion of thirty days of service. However, the following employees or classes of employees are not eligible to participate&#58; (i) employees who are non-resident aliens and who receive no earned income from the Company which constitutes income from sources within the United States&#59; (ii) leased employees&#59; and (iii) employees who are residents of Puerto Rico.</font></div><div style="text-align:justify"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#160;</font></div><div style="text-align:justify"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Contributions</font></div><div style="text-align:justify"><font><br></font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company may contribute an amount equal to a specified matching percentage of the participant&#8217;s elective contribution other than &#8220;catch-up&#8221; contributions. In April 2020, the Company suspended its matching contribution of participants' contributions. In October 2021, the Company reinstated the matching contributions of 50% of the first 8% of the participant's elective contributions per pay period. The maximum elective contribution limit is 70% of the employee's eligible compensation as defined by the Plan. Contributions for each participant are limited in any calendar year to annual &#8220;regular&#8221; pre-tax contributions and contributions on an after-tax Roth 401(k) basis up the applicable combined contribution limits as determined pursuant to the IRC. In addition, employees who are, or will be, age 50 or older by the end of the year may make &#8220;catch-up&#8221; contributions up to the applicable contribution limits as determined pursuant to the IRC. Unless the employee elects otherwise, 4% of each eligible employee&#8217;s compensation is automatically contributed to the Plan on a pre-tax basis. The Plan provides an automated service which increases the employee&#8217;s elective contribution rate by 2% at the same time each year until a 6% elective contribution rate has been reached. The employee is reminded annually before any such increase takes place and can elect to change the elective contribution rate at any time by contacting TRP. Employees have the option to elect a 0% elective contribution rate or to change their elective contribution rate in accordance with the Plan. The 8% elective contribution rate is the amount needed to take advantage of the full Company match, during periods of time when the Company match is being paid.</font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#160;</font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company may also, at the discretion of the Board of Directors, make a profit sharing contribution to the Plan at the end of each fiscal year. Such Company contribution would be allocated to Plan participants, who are employed on December 31 of such year, in the same ratio that each participant&#8217;s eligible Plan compensation bears to the total eligible Plan compensation of all participants. No profit sharing contribution was made for the 2021 Plan year. </font></div><div><font><br></font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Participants have the right to direct the investment of their contributions, including the Company&#8217;s matching contributions and profit sharing, if any, into any of the investment options offered by the Plan. Participant contributions and Company contributions for which no participant investment direction is given are automatically allocated to age-appropriate target date mutual funds. These target date mutual funds provide an asset allocation and investment strategy based on a future retirement date. If the contributions of a participant are automatically </font></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">5</font></div></div></div><hr style="page-break-after:always"><div style="min-height:42.75pt;width:100%"><div><font><br></font></div></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">allocated to a target date mutual fund, the participant may elect to change such investments in accordance with the Plan.</font></div><div style="text-align:justify"><font><br></font></div><div style="margin-bottom:14pt"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Company Stock Fund</font></div><div style="margin-bottom:14pt"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Plan permits participants to invest in common stock of the Company through the Plan&#8217;s Company Stock Fund. The Company Stock Fund may also hold cash or other short-term securities.</font></div><div style="margin-bottom:14pt"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Plan limits the amount a participant can invest in the Company Stock Fund, to encourage diversification of participants&#8217; accounts. Payroll periods from January 1 to April 23, 2020, a participant could direct up to a maximum of 50% of their contributions to the Company Stock Fund. In addition, a participant could not transfer amounts from other investment funds into the Company Stock Fund to the extent the transfer would result in more than 50% of the participant&#8217;s total account balance being invested in the Company Stock Fund. Effective April 24, 2020, the Company reduced the cap for new contributions and transfers into the Company Stock Fund from 50% to 25%.</font></div><div style="text-align:justify"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Vesting</font></div><div style="text-align:justify"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">&#160;</font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Participants are immediately vested in their elective contributions, as adjusted for earnings and losses thereon. Vesting in the matching contribution and profit sharing contribution portions of their accounts, if any, as adjusted for earnings and losses thereon, is based on years of service. Participants become 50% vested in matching contributions and profit sharing contributions after two years of service, and 100% vested after three years of service. Upon a participant&#8217;s death, disability or normal retirement, the participant becomes 100% vested in his or her entire account. Except as otherwise described herein, participants forfeit any non-vested matching contribution and profit sharing contribution portions of their accounts in the Plan upon termination of employment with the Company.</font></div><div style="text-align:justify"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#160;</font></div><div style="text-align:justify"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Benefit Payments and Forfeitures</font></div><div style="text-align:justify"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">&#160;</font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Upon termination of employment for any reason, a participant&#8217;s vested balance is payable in a lump sum or installments. Amounts which are forfeited by participants due to termination of employment are used as a credit against the Company&#8217;s matching and profit sharing contributions, if any. During 2021, employer contributions were fully funded by using $292,916 from forfeited non-vested accounts. Cumulative forfeitures relating to prior-period activity and available to be applied against any future Company-paid matching contributions or profit sharing were approximately $534,261 and $785,427 as of December&#160;31, 2021 and 2020, respectively. </font></div><div style="text-align:justify"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">&#160;</font></div><div style="text-align:justify"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Plan</font><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </font><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Amendment and</font><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </font><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Termination</font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">&#160;</font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company has the right under the Plan to amend or terminate the Plan, subject to applicable law. In the event of Plan termination, participants would become 100% vested in their accounts, and would receive, within a reasonable time, any funds in their accounts as of the date of the termination.</font></div><div style="text-align:justify"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#160;</font></div><div style="text-align:justify"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Participant Loans</font></div><div style="text-align:justify"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">&#160;</font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Participants, during their time of employment, may borrow from their fund accounts a minimum of $1,000, up to a maximum equal to the lesser of $50,000 or 50% of their vested account balances. Loan terms range from 1 to 5 years, or up to 15 years for the purchase of the participant&#8217;s primary residence. The loans are secured by the balances in the participants&#8217; accounts and bear interest at rates established at the inception of the loan, set at one percentage point higher than the prime lending rate as posted in the Wall Street Journal (or similar financial publication). Principal and interest are paid ratably, generally through payroll deductions.</font></div><div style="text-align:justify"><font><br></font></div><div style="text-align:justify"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Administrative Expenses</font></div><div style="text-align:justify"><font><br></font></div><div style="text-align:justify"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Certain administrative expenses are paid by the Company.</font></div><div style="text-align:justify"><font><br></font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">CARES Act</font></div><div><font><br></font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Coronavirus Aid, Relief, and Economic Security Act (&#34;CARES&#34; Act) became law on March 27, 2020. The CARES Act, included several relief provisions available to qualified retirement plans and their participants including, </font></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">6</font></div></div></div><hr style="page-break-after:always"><div style="min-height:42.75pt;width:100%"><div><font><br></font></div></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">among other things penalty-free hardship withdrawals, increases in loan limits up to $100,000 and up to one-year loan suspensions. Pursuant to the CARES Act, the Plan permitted qualified participants to take coronavirus-related distributions of up to $100,000, or 100% of their vested balance, whichever is less, with repayment terms of up to three years. In addition, pursuant to the CARES Act, the Plan adopted the temporary loan repayment deferral provision which allows qualified Plan participants who have Plan loan repayments to elect to defer loan repayments that occurred between March 27, 2020 and December 31, 2020. The ability to request special coronavirus-related distributions and&#47;or request to defer loan repayments under the CARES Act ceased as of December 31, 2020.</font></div><div><font><br></font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Plan Transfers</font></div><div><font><br></font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">On January 29, 2021, the Company entered into a Purchase and Sale Agreement with Spartan Energy Partners,&#160;LP pursuant to which the Company sold the general partner of CSI Compressco LP (CSI Compressco), including the Incentive Distribution Rights and approximately 23.1% of the outstanding limited partner interests in CSI Compressco. The Company continued to provide back-office support to CSI Compressco under a Transition Services Agreement for a period of time until CSI Compressco completed a full separation from the Company's back-office support functions. CSI Compressco employees continued to participate in the Plan until July 30, 2021 upon which net assets of approximately $42.9&#160;million attributable to employees of CSI Compressco were transferred from the Plan to the CSI Compressco GP, LLC 401(k) Plan with no continuing involvement by us as Plan Administrator. The transfers were considered a partial plan termination and resulted in all affected participants becoming fully vested in their account balances.</font></div><div style="text-align:justify"><font><br></font></div><div id="i9522f929f98a44bd9e42280840ff90d3_25"></div><div style="text-align:justify"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">2. Summary of Accounting Policies</font></div><div style="text-align:justify"><font><br></font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Basis of Accounting</font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">&#160;</font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The accompanying financial statements of the Plan have been prepared using the accrual basis of accounting in accordance with U.S. generally accepted accounting principles (U.S. GAAP). Benefit payments to participants are recorded upon distribution.</font></div><div><font><br></font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Use of Estimates</font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">&#160;</font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates that affect the amounts reported in the financial statements and accompanying notes and schedule. Actual results could differ from those estimates.</font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#160;</font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Notes Receivable from Participants</font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">&#160;</font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Notes receivable from participants represent participant loans that are recorded at their unpaid principal balance plus any accrued but unpaid interest. Interest income on notes receivable from participants is recorded when it is earned. Related fees are recorded as administrative expenses and are recorded when they are incurred. No allowance for credit losses has been recorded as of December&#160;31, 2021 or 2020. If a participant ceases to make loan repayments and the plan administrator deems the participant loan to be a distribution, the participant loan balance is reduced and a benefit payment is recorded.</font></div><div><font><br></font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Investment Valuation and Income Recognition</font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">&#160;</font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Plan&#8217;s investments are stated at fair value. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (an exit price). Refer to Note 3 for further discussion and disclosure related to fair value.  </font></div><div><font><br></font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Short-term investments are valued at cost, which approximates fair value. Purchases and sales of securities are recorded on a trade date basis. Interest income is recorded on the accrual basis and dividends are recorded on the ex-dividend date. Net appreciation includes the Plan's gains and losses on investments purchased and sold as well as held during the year.</font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">&#160;</font></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">7</font></div></div></div><hr style="page-break-after:always"><div style="min-height:42.75pt;width:100%"><div><font><br></font></div></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Accounting Pronouncements </font></div><div><font><br></font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">New pronouncements issued but not effective until after December&#160;31, 2021, are not expected to have a material impact on the Plan's financial statements or disclosures.</font></div><div><font><br></font></div><div id="i9522f929f98a44bd9e42280840ff90d3_28"></div><div style="margin-bottom:14pt;text-align:justify"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">3. Fair Value Measurements</font></div><div style="margin-bottom:14pt"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (i.e., an exit price). The fair value hierarchy prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets and liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). The level in the fair value hierarchy within which the fair value measurement is classified is determined based on the lowest priority input that is significant to the fair value measure in its entirety. The three levels of the fair value hierarchy are described below&#58;</font></div><div style="margin-bottom:14pt;text-indent:18pt"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Level 1&#160;&#8211; Unadjusted quoted prices in active markets that are accessible to the reporting entity at the measurement date for identical assets and liabilities.</font></div><div style="text-indent:18pt"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Level 2&#160;&#8211; Inputs other than quoted prices in active markets for identical assets and liabilities that are observable either directly or indirectly for substantially the full term of the asset or liability. </font></div><div style="text-indent:18pt"><font><br></font></div><div style="margin-bottom:14pt;text-indent:18pt"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Level 3&#160;&#8211; Unobservable inputs for the asset or liability (i.e., supported by little or no market activity). 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style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:14.550%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="21" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:100%">Assets at Fair Value as of December 31, 2021</font></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:100%">Level 1</font></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:100%">Level 2</font></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:100%">Level 3</font></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:100%">Total</font></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">TETRA Technologies, Inc. common stock</font></td><td colspan="3" style="padding:0 1pt"></td><td style="border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</font></td><td style="border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,144,836&#160;</font></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td style="border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</font></td><td style="border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</font></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td style="border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</font></td><td style="border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</font></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td style="border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</font></td><td style="border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,144,836&#160;</font></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Mutual funds</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">89,288,847&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">89,288,847&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td style="border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</font></td><td style="border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">91,433,683&#160;</font></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td style="border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</font></td><td style="border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</font></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td style="border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</font></td><td style="border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</font></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td style="border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</font></td><td style="border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">91,433,683&#160;</font></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Investments measured at net asset value&#58;</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:3pt double #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:3pt double #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:3pt double #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:3pt double #000000;padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Stable Value Fund (a)</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">5,449,374&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total assets at fair value</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td style="border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</font></td><td style="border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">96,883,057&#160;</font></td><td style="border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr></table></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#160;</font></div><div style="margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:41.297%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:14.543%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:14.550%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="21" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:100%">Assets at Fair Value as of December 31, 2020</font></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:100%">Level 1</font></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:100%">Level 2</font></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:100%">Level 3</font></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:100%">Total</font></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">TETRA Technologies, Inc. common stock</font></td><td colspan="3" style="padding:0 1pt"></td><td style="border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</font></td><td style="border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">933,675&#160;</font></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td style="border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</font></td><td style="border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</font></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td style="border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</font></td><td style="border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</font></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td style="border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</font></td><td style="border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">933,675&#160;</font></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Mutual funds</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">121,106,778&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">121,106,778&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td style="border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</font></td><td style="border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">122,040,453&#160;</font></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td style="border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</font></td><td style="border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</font></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td style="border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</font></td><td style="border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</font></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td style="border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</font></td><td style="border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">122,040,453&#160;</font></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Investments measured at net asset value&#58;</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:3pt double #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:3pt double #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:3pt double #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:3pt double #000000;padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Stable Value Fund (a)</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td style="padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</font></td><td style="padding:2px 0;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">7,017,778&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total assets at fair value</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td style="border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</font></td><td style="border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">129,058,231&#160;</font></td><td style="border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr></table></div><div style="text-align:justify"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#160;</font></div><div style="margin-bottom:5pt;text-indent:18pt"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(a)&#160;&#160;&#160; This category includes a common&#47;collective trust fund that is designed to deliver safety and stability by preserving principal and accumulating earnings. This fund is primarily invested in guaranteed investment contracts and synthetic investment contracts. Participant-directed redemptions have no restrictions, no unfunded commitments, and the redemption period is daily&#59; however, the Plan is required to provide a one-year redemption notice to liquidate its entire share in the fund. The estimated fair value of this fund is based on the net asset value </font></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">8</font></div></div></div><hr style="page-break-after:always"><div style="min-height:42.75pt;width:100%"><div><font><br></font></div></div><div style="margin-bottom:5pt"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">as reported by the issuer of the fund, which is determined based on the fair value of the underlying investment contracts in the fund. </font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#160;</font></div><div style="margin-bottom:14pt"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Plan&#8217;s valuation methodology used to measure the fair values of Company stock and mutual funds were derived from quoted market prices, as these instruments have active markets. Common collective trust funds are measured at net asset value as determined by the issuer. The net asset value is used as a practical expedient to estimate fair value.</font></div><div id="i9522f929f98a44bd9e42280840ff90d3_31"></div><div style="text-align:justify"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">4.</font><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </font><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Income Tax Status</font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">&#160;</font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The underlying non-standardized pre-approved profit sharing plan has received an advisory letter from the Internal Revenue Service (IRS) dated August 19, 2020, stating that the form of the Plan is qualified under Section 401 of the IRC, and therefore, the related trust is tax exempt. The Plan Administrator has determined that it is eligible to, and has chosen to, rely on the current IRS advisory letter. Once qualified, the Plan is required to operate in conformity with the IRC to maintain its qualification. The Plan Administrator believes the Plan is being operated in compliance with the applicable requirements of the IRC and, therefore, believes the Plan is qualified and the related trust is tax-exempt.</font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">&#160;</font></div><div style="margin-bottom:14pt"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">U.S. GAAP requires plan management to evaluate uncertain tax positions taken by the Plan. The financial statement effects of a tax position are recognized when the position is more likely than not, based on the technical merits, to be sustained upon examination by the IRS. The Plan Administrator has analyzed the tax positions taken by the Plan, and has concluded that as of December&#160;31, 2021, there are no uncertain positions taken or expected to be taken. The Plan has recognized no interest or penalties related to uncertain tax positions. The Plan is subject to routine audits by taxing jurisdictions&#59; however, there are currently no audits in progress for any tax periods.</font></div><div id="i9522f929f98a44bd9e42280840ff90d3_34"></div><div style="text-align:justify"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">5. Reconciliation of the Financial Statements to the Form 5500</font></div><div style="text-align:justify"><font><br></font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following is a reconciliation of net assets available for benefits per the financial statements at December&#160;31, 2021 and 2020 to Form 5500&#58;</font></div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:60.303%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:17.467%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:17.470%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:100%">December 31,</font></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:100%">2021</font></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:100%">2020</font></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</font></td></tr><tr><td colspan="3" style="padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net assets available for benefits per the financial statements</font></td><td colspan="3" style="padding:0 1pt"></td><td style="padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</font></td><td style="padding:2px 0;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">98,416,254&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td style="padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</font></td><td style="padding:2px 0;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">131,661,611&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Participant loans reduced by deemed distributions</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(46,527)</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net assets available for benefits per Form 5500</font></td><td colspan="3" style="padding:0 1pt"></td><td style="border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</font></td><td style="border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">98,416,254&#160;</font></td><td style="border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td style="border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</font></td><td style="border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">131,615,084&#160;</font></td><td style="border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr></table></div><div><font><br></font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">The following is a reconciliation of total deductions per the financial statements for the year ended December 31, 2021 to Form 5500&#58;</font></div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.853%"><tr><td style="width:1.0%"></td><td style="width:79.719%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.385%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:17.496%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:100%">December 31, 2021</font></td></tr><tr style="height:14pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total deductions per the financial statements</font></td><td colspan="3" style="padding:0 1pt"></td><td style="padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</font></td><td style="padding:2px 0;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">14,607,500&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Deemed distributions of participant loans at December 31, 2020</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(46,527)</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total expenses per the Form 5500</font></td><td colspan="3" style="padding:0 1pt"></td><td style="border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</font></td><td style="border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">14,560,973&#160;</font></td><td style="border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr></table></div><div style="text-align:justify"><font><br></font></div><div style="text-align:justify"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following is a reconciliation of the net increase before transfers per the financial statements to the net income per the Form 5500&#58;</font></div><div style="margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:79.601%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:17.469%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:100%">December 31, 2021</font></td></tr><tr style="height:14pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net increase before transfers per the financial statements</font></td><td colspan="3" style="padding:0 1pt"></td><td style="padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</font></td><td style="padding:2px 0;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">9,619,429&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Deemed distributions of participant loans at December 31, 2020</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">46,527&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net income per Form 5500</font></td><td colspan="3" style="padding:0 1pt"></td><td style="border-bottom:3pt double #000000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</font></td><td style="border-bottom:3pt double #000000;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">9,665,956&#160;</font></td><td style="border-bottom:3pt double #000000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr></table></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">9</font></div></div></div><hr style="page-break-after:always"><div style="min-height:42.75pt;width:100%"><div><font><br></font></div></div><div><font><br></font></div><div id="i9522f929f98a44bd9e42280840ff90d3_37"></div><div style="text-align:justify"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">6. Risks and Uncertainties</font></div><div style="text-align:justify"><font><br></font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Plan provides for investments in various investment securities, that in general, are exposed to various risks, such as interest rate, credit, and overall market volatility risks. Due to the level of risk associated with certain investment securities, it is at least reasonably possible that changes in the values of investment securities will occur in the near term and that such changes could materially affect the amounts reported in the statements of net assets available for benefits and participant account balances.</font></div><div><font><br></font></div><div id="i9522f929f98a44bd9e42280840ff90d3_40"></div><div style="text-align:justify"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">7. Related Party Transactions</font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#160;</font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Certain investments of the Plan are managed by T. Rowe Price Trust Company, the Trustee of the Plan, and therefore, these transactions qualify as party-in-interest transactions. The Plan also invests in shares of the Company's common stock and these transactions also qualify as party-in-interest transactions. All of these transactions are exempt from the prohibited transactions rules under ERISA.</font></div><div><font><br></font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">T. Rowe Price Retirement Plan Services, Inc. provides certain administrative services to the Plan pursuant to a Plan Recordkeeping Agreement (the &#8220;Agreement&#8221;) between the Company and T. Rowe Price Retirement Plan Services, Inc. T. Rowe Price Retirement Plan Services, Inc. receives fees and&#47;or credits from non-proprietary investments for the provision of recordkeeping, administrative, and shareholder services T. Rowe Price Retirement Plan Services, Inc. provides to the investments. This revenue is used to offset certain amounts owed to T. Rowe Price Retirement Plan Services, Inc. for its administrative services provided to the Plan.</font></div><div><font><br></font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">If the revenue received by T. Rowe Price Retirement Plan Services, Inc. from such investments does not exceed the amount owed under the Agreement, T. Rowe Price Retirement Plan Services, Inc. will bill the Company on a quarterly basis. The Plan or the Company may make a payment to T. Rowe Price Retirement Plan Services, Inc. for administrative expenses not covered by sharing of the excess revenue.</font></div><div><font><br></font></div><div id="i9522f929f98a44bd9e42280840ff90d3_43"></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">8. Subsequent Events</font></div><div><font><br></font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company has evaluated subsequent events through June&#160;28, 2022, the date these financial statements were issued. No events have occurred that required either adjustment to, or disclosure in, these financial statements except for the transaction described below.</font></div><div><font><br></font></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">10</font></div></div></div><div id="i9522f929f98a44bd9e42280840ff90d3_46"></div><hr style="page-break-after:always"><div style="min-height:42.75pt;width:100%"><div><font><br></font></div></div><div style="text-align:center"><font><br></font></div><div style="text-align:center"><font><br></font></div><div style="text-align:center"><font><br></font></div><div style="text-align:center"><font><br></font></div><div style="text-align:center"><font><br></font></div><div style="text-align:center"><font><br></font></div><div style="text-align:center"><font><br></font></div><div style="text-align:center"><font><br></font></div><div style="text-align:center"><font><br></font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:700;line-height:120%">Supplemental Schedule</font></div><div><font><br></font></div><div><font><br></font></div><div><font><br></font></div><div><font><br></font></div><div><font><br></font></div><div><font><br></font></div><div><font><br></font></div><div><font><br></font></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">11</font></div></div></div><div id="i9522f929f98a44bd9e42280840ff90d3_49"></div><hr style="page-break-after:always"><div style="min-height:42.75pt;width:100%"><div><font><br></font></div></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">TETRA Technologies, Inc. 401(k) Retirement Plan</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">Schedule H, Line 4(i) &#8211; Schedule of Assets (Held at End of Year)</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">EIN&#58; 74-2148293&#160;&#160;&#160;&#160;&#160; PN&#58; 001</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">December&#160;31, 2021 </font></div><div style="margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:98.976%"><tr><td style="width:0.1%"></td><td style="width:2.754%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:26.521%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.538%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:45.133%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.538%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:20.616%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">&#160;</font></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:700;line-height:100%">Identity of Issue, Borrower,</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:700;line-height:100%">&#160;</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:700;line-height:100%">Current</font></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">&#160;</font></td><td colspan="3" style="border-bottom:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:700;line-height:100%">Lessor, or Similar Party</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-bottom:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:700;line-height:100%">Description of Investment</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-bottom:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:700;line-height:100%">Value</font></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">*</font></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">T. Rowe Price</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Retirement 2025 Fund</font></td><td colspan="3" style="padding:0 1pt"></td><td style="border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">$</font></td><td style="border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">9,411,227&#160;</font></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">*</font></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">T. Rowe Price</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Retirement 2030 Fund</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">8,059,528&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">*</font></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">T. Rowe Price</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Retirement 2040 Fund</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">7,741,427&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">*</font></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">T. Rowe Price</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Retirement 2045 Fund</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">7,597,993&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">*</font></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">T. Rowe Price</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Retirement 2035 Fund</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">7,023,970&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">*</font></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">T. Rowe Price</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">TRP Growth Stock Fund</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">6,426,883&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">*</font></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">T. Rowe Price</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Retirement 2050 Fund</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">6,105,130&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">*</font></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">T. Rowe Price</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">TRP Stable Value Fund</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">5,449,374&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">American Funds</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Washington Mutual Investors Fund R6</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">4,328,575&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">*</font></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">T. Rowe Price</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Retirement 2020 Fund</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">3,877,048&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">*</font></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">T. Rowe Price</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Retirement 2055 Fund</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">3,741,032&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Vanguard</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Growth Index Fund</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">3,279,009&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Vanguard</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Interm Term Bond Ind</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">3,155,647&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Carillon</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Eagle Mid Cap Growth</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">2,976,895&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">*</font></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">TETRA Technologies, Inc.</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Company Stock</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">2,144,836&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">BNY Mellon</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">MidCap Index Inv</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">1,962,670&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">*</font></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Participant loans</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Participant Loans with various maturities and interest rates ranging from 4.25% to 8.5%</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">1,533,197&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">*</font></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">T. Rowe Price</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">QM U.S. Small-Cap Growth Equity Fund</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">1,498,246&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">*</font></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">T. Rowe Price</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Retirement 2060 Fund</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">1,362,155&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">American Funds</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">EuroPacific Growth R5</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">1,223,786&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">*</font></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">T. Rowe Price</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Retirement 2010 Fund</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">1,190,410&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Victory Sycamore</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Established Value Fund</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">1,174,371&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Vanguard</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Mid-Cap Index Admiral</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">934,662&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">UBVLX</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Undiscovered Managers Behavioral Value L</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">920,828&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Vanguard</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Value Index Admiral</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">867,130&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">PIMCO</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Income Inst</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">852,677&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Vanguard</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Treasury Money Market</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">822,535&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Vanguard</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Small Cap Index Admiral</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">796,371&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">*</font></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">T. Rowe Price</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Retirement 2015 Fund</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">629,037&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">MFS</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">International Intrinsic Value R4</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">329,854&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">*</font></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">T. Rowe Price</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Retirement 2005 Fund</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">281,566&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">American</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">New World R6</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">212,140&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">MFS</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Aggressive Growth Alloc R4</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">109,642&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Vanguard</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Short Term Inv Gr</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">96,239&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">PIMCO</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Short-Term Inst</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">96,019&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">*</font></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">T. Rowe Price</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Retirement 2065 Fund</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">69,064&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Vanguard</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Developed Markets Index Admiral</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">62,670&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">MFS</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Growth Allocation R4</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">32,301&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">MFS</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Conservative Allocation R4</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">21,294&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">*</font></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">T. Rowe Price</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 10pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">TRP Retire Bal Inv</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">14,242&#160;</font></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:middle"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">MFS</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt 2px 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style="min-height:42.75pt;width:100%"><div><font><br></font></div></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">EXHIBIT INDEX</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">&#160;</font></div><div style="margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:98.391%"><tr><td style="width:1.0%"></td><td style="width:17.324%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:2.771%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:77.505%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><font 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style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">13</font></div></div></div><div id="i9522f929f98a44bd9e42280840ff90d3_58"></div><hr style="page-break-after:always"><div style="min-height:42.75pt;width:100%"><div><font><br></font></div></div><div style="text-align:center"><font><br></font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">SIGNATURES</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">&#160;</font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-style:italic;font-weight:400;line-height:120%">&#160;</font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">The Plan</font><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">.  Pursuant to the requirements of the Securities Exchange Act of 1934, the trustees (or other persons who administer the employee benefit plan) have duly caused this annual report to be signed on its behalf by the undersigned hereunto duly authorized.</font></div><div style="text-align:justify"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#160;</font></div><div style="margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.707%"><tr><td style="width:1.0%"></td><td style="width:53.592%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:44.208%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:justify;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</font></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:justify"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:100%">TETRA Technologies, Inc.</font><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </font><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:100%">401(k)</font></div></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:justify;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</font></td><td colspan="3" style="padding:2px 1pt;text-align:justify;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:100%">Retirement Plan</font></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:justify;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</font></td><td colspan="3" style="padding:2px 1pt;text-align:justify;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</font></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:right;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">By&#58;</font></td><td colspan="3" style="padding:2px 1pt;text-align:justify;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#47;s&#47;Brady M. Murphy </font></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:justify;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</font></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:justify;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Brady M. Murphy </font></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:justify;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</font></td><td colspan="3" style="padding:2px 1pt;text-align:justify;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Chief Executive Officer and President</font></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:justify;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</font></td><td colspan="3" style="padding:2px 1pt;text-align:justify;vertical-align:top"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">TETRA Technologies, Inc.</font></td></tr></table></div><div style="text-align:justify"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#160;</font></div><div style="text-align:justify"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Date&#58; June&#160;28, 2022 </font></div><div><font><br></font></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">14</font></div></div></div></body></html>
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<TYPE>EX-23.1
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<FILENAME>tti2021form11kexhibit231.htm
<DESCRIPTION>EX-23.1
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<title>Document</title></head><body><div id="i24a06c3813b14964b375df9086603742_1"></div><div style="min-height:42.75pt;width:100%"><div><font><br></font></div></div><div style="text-align:right"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">EXHIBIT 23.1</font></div><div><font><br></font></div><div><font><br></font></div><div style="text-align:center"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM</font></div><div style="text-align:center"><font><br></font></div><div style="text-align:center"><font><br></font></div><div style="margin-bottom:5pt;margin-top:5pt"><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#160;&#160;&#160;&#160;We consent to the incorporation by reference in the Registration Statement (Form S-8 No. 333-149348) pertaining to the 401(k) Retirement Plan of TETRA Technologies, Inc. of our report dated June&#160;28, 2022, with respect to the financial statements and schedule of the TETRA Technologies, Inc. 401(k) Retirement Plan included in this Annual Report (Form 11-K) for the year ended December&#160;31, 2021.</font></div><div><font><br></font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#47;s&#47; Calvetti Ferguson</font></div><div><font><br></font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Houston, Texas</font></div><div><font style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">June&#160;28, 2022 </font></div><div><font><br></font></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div><font><br></font></div></div></div></body></html>
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