NL Industries, Inc. operates as a diversified holding company with core business segments focused on component products and chemical operations. Historically recognized as the National Lead Company, the enterprise shifted its business model away from lead mining, smelting, and pigments. Through its subsidiaries, it currently manufactures specialized security products, high-end cabinet and electronic locks, and engineered mechanical components utilized across transportation, furniture, and industrial sectors, alongside historical management of titanium dioxide chemical investments.