Valhi, Inc. is a holding company. The company operates through its wholly owned and majority owned subsidiaries, including NL Industries, Inc., Kronos Worldwide, Inc., CompX International Inc. and Waste Control Specialists LLC., Kronos, NL and CompX. The Company operates in three segments: Chemicals, Component Products and Waste Management. The chemicals segment is operated through its majority control of Kronos Worldwide, Inc. The Company operates in the component products industry through its majority control of CompX International Inc. Waste Control Specialists LLC is the company�s subsidiary which operates a West Texas facility for the processing, treatment, storage and disposal of a broad range of low-level radioactive, hazardous, toxic and other wastes.