Ternium S.A. is a manufacturer of flat and long steel products with production centers in Argentina, Brazil, Mexico, Guatemala, Colombia, and the United States. Ternium owns a 51.5% interest in Usiminas of Brazil. The company has an annual production capacity of 15.4 million tons. In 2023, 55% of its sales were from Mexico; 21% of sales were from Argentina; Bolivia, Chile, Paraguay and Uruguay; 13% of sales were from Brazil; and 11% of sales were from the United States, Colombia and Central America. Approximately 21% of the company is publicly-traded; the remainder is controlled by San Faustin S.A., which is in turn controlled by Rocca & Partners Stichting Administratiekantoor Aandelen San Faustin, a Stichting. The company takes its name from the Latin words ''Ter'' (three) and ''Eternium'' (eternal) in reference to the integration of the three steel mills.

History

Ternium was formed in 2005 by the consolidation of three companies: Siderar of

Argentina Argentina, officially the Argentine Republic, is a country in the southern half of South America. It covers an area of , making it the List of South American countries by area, second-largest country in South America after Brazil, the fourt ...

, Sidor of

Venezuela Venezuela, officially the Bolivarian Republic of Venezuela, is a country on the northern coast of South America, consisting of a continental landmass and many Federal Dependencies of Venezuela, islands and islets in the Caribbean Sea. It com ...

and Hylsa of

Mexico Mexico, officially the United Mexican States, is a country in North America. It is the northernmost country in Latin America, and borders the United States to the north, and Guatemala and Belize to the southeast; while having maritime boundar ...

. In 2006, Ternium was listed on the New York Stock Exchange. In 2007, Ternium acquired Grupo IMSA, expanding its operations into Guatemala and the United States. In April 2008, after a series of worker disputes over pay which led to

strike action Strike action, also called labor strike, labour strike in British English, or simply strike, is a work stoppage caused by the mass refusal of employees to Working class, work. A strike usually takes place in response to employee grievances. Str ...

s, Sidor was nationalized by the

government of Venezuela Venezuela is a federal presidential republic. The chief executive is the President of Venezuela who is both head of state and head of government. Executive power is exercised by the President. Legislative power is vested in the National Assembl ...

. In May 2009, compensation of US$1.65 billion was paid for Ternium's 59.7% stake in Sidor. In August 2010, Ternium acquired a 54% interest in Ferrasa, and in April 2015, Ternium acquired the remainder of the company, which was renamed Ternium Colombia. In 2017, Ternium acquired CSA Siderúrgica do Atlântico for €1.4 billion and renamed it Ternium Brazil. In July 2023, Ternium increased its ownership in Usiminas to 51.5%.

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* {{Authority control Companies based in Luxembourg City Companies listed on the Buenos Aires Stock Exchange Companies listed on the New York Stock Exchange Iron and steel mills Luxembourgian companies established in 2005 Manufacturing companies established in 2005 Manufacturing companies of Argentina Manufacturing companies of Mexico Steel companies of Luxembourg Techint