Ternium S.A.

Ternium S.A. is a soci t anonyme organized under the laws of the Grand-Duchy of Luxembourg established on December 22, 2003. Its registered office is located at 26 Boulevard Royal 4th floor, L-2449 Luxembourg. Its agent for U.S. federal securities law purposes is Ternium U.S.A. Incorporated, located at 2200 West Loop South, Suite 945, Houston, TX 77027, United States. Ternium Ternium’s origins began in September 1961 with the founding of Propulsora Sider rgica ("Propulsora") by San Faustin’s predecessor in Argentina. Propulsora began its operations as a producer of cold-rolled coils in December 1969 and in the early 1990s began to evolve through a series of strategic investments aimed at transforming Propulsora into an integrated steel producer. In 1993, Propulsora merged with Aceros Paran S.A. (a company formed by the Argentine government in connection with the privatization of Sociedad Mixta Sider rgica Argentina ("Somisa"), at that time the main integrated producer of flat steel in Argentina) and three other affiliated steel industry companies. After the merger, Propulsora changed its name to Siderar, and later to Ternium Argentina. San Faustin held a controlling interest in Siderar, with the remainder being held mainly by Usiminas, certain former employees of Somisa, and public investors. In December 1997, a consortium formed by San Faustin, Ternium Argentina, Usiminas, Hylsamex S.A. de C.V. ("Hylsamex"), and Siderurgica Venezolana S.A. ("Sivensa"), won the bid in the privatization of a controlling interest in Sidor C.A. ("Sidor"), the largest steel company in Venezuela.