Ternium S.A.

Ternium was formed in 2005 by the consolidation of three companies: Siderar of Argentina, SIDOR of Venezuela and Hylsa ( es ) of Mexico.

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 actions, SIDOR was nationalized by the government of Venezuela. 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%.