NL REPORTS FIRST QUARTER 2024 RESULTS DALLAS, TEXAS – May 8, 2024 – NL Industries, Inc. (NYSE: NL) today reported net income attributable to NL stockholders of $6.8 million, or $.14 per share, in the first quarter of 2024 compared to a net loss attributable to NL stockholders of $6.7 million, or $.14 per share, in the first quarter of 2023. NL results include an unrealized gain of $2.4 million in the first quarter of 2024 related to the change in value of marketable equity securities compared to an unrealiz ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-640 NL INDUSTRIES, INC. (Exact name of Registrant as specified in its charter) New Jersey 13-5267260 (State or other jurisd ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-640 NL INDUSTRIES, INC. (Exact name of Registrant as specified in its charter) New Jersey 13-5267260 (State or other jurisdiction of (IRS Employer ...

NL REPORTS FOURTH QUARTER 2023 RESULTS DALLAS, TEXAS – March 6, 2024 – NL Industries, Inc. (NYSE: NL) today reported net income attributable to NL stockholders of $7.6 million, or $.16 per share, in the fourth quarter of 2023 compared to a net loss attributable to NL stockholders of $6.1 million, or $.13 per share, in the fourth quarter of 2022. NL’s results include an unrealized gain of $2.4 million in the fourth quarter of 2023 related to the change in value of marketable equity securities compared to a $ ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-640 NL INDUSTRIES, INC. (Exact name of Registrant as specified in its charter) New Jersey 13-5267260 (State or other ju ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-640 NL INDUSTRIES, INC. (Exact name of Registrant as specified in its charter) New Jersey 13-5267260 (State or other jurisdi ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-640 NL INDUSTRIES, INC. (Exact name of Registrant as specified in its charter) New Jersey 13-5267260 (State or other jurisd ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-640 NL INDUSTRIES, INC. (Exact name of Registrant as specified in its charter) New Jersey 13-5267260 (State or other jurisdiction of (IRS Employer ...