NL INDUSTRIES INC

NL Industries, Inc. is primarily a holding company, organized as a New Jersey corporation in 1891. The company's common stock trades on the New York Stock Exchange under the symbol NL. NL Industries operates in the component products industry through its majority-owned subsidiary, CompX International Inc. (NYSE American: CIX). Additionally, the company operates in the chemicals industry through its noncontrolling interest in Kronos Worldwide, Inc. (NYSE: KRO). Both CompX and Kronos file periodic reports with the SEC. As of December 31, 2025, Valhi, Inc. (NYSE: VHI) held approximately 83% of NL Industries' outstanding common stock, and a wholly-owned subsidiary of Contran Corporation held approximately 91% of Valhi's outstanding common stock. Lisa K. Simmons and a trust established for the benefit of Ms. Simmons and her late sister and their children may be deemed to control Contran, and therefore may be deemed to indirectly control the wholly-owned subsidiary of Contran, Valhi, and NL Industries. The company's principal executive offices are located at Three Lincoln Center, 5430 LBJ Freeway, Suite 1700, Dallas, TX 75240.