| Ternium S.A. (Ternium) is engaged in investments in flat and long steel manufacturing and distributing companies.The Company has three segments: flat steel products, long steel products and others. The flat steel products segment comprises the manufacturing and marketing of flat steel products. The long steel products segment comprises the manufacturing and marketing of long steel products. The other products segment includes the products other than flat and long steel, mainly pig iron, pellets and pre-engineered metal buildings. The Company's subsidiaries include Ternium Mexico S.A. de C.V., Acerex S.A. de C.V., Hylsa S.A. de C.V. In May 2009, the Company announced the completion of the transfer of its entire 59.7% interest in Sidor, C.A. to Corporacion Venezolana de Guayana. |