Tenaris continues to strengthen its competitive position, investing heavily in research
and the continuous improvement of its talented workforce.
Cold rolling and downstream processing of flat steel in Argentina continued to
grow through the 1980s. In 1992, the Group acquired from the state a majority share
of Somisa, the largest integrated flat steel plant in Argentina, and brought it up rapidly
to international production standards through a major investment program.
Steel coating and processing capacities were also expanded in the 1990s through
investments and acquisitions. All Argentine flat steel facilities were then integrated
in Siderar. In 1997, the Group participated in a consortium that acquired a controlling
share of Sidor, the largest steel company in Venezuela.
In 2005, Ternium was created with the integration of Siderar, Sidor and Hylsa.
Acquired in August of that year, Hylsa was the largest steel manufacturer in Mexico,
and the one with the highest level of vertical integration, from the extraction and
processing of iron ore to the manufacturing of high value-added steel products.
In February 2006, Ternium was listed on the New York Stock Exchange.
In 2007, Ternium took control over Grupo Imsa, a company with a strong presence
in Mexico and processing facilities in Guatemala and the United States.
In 2008, the Venezuelan government nationalized Sidor.
In 2010, Ternium completed the acquisition of Colombia-based Ferrasa, a leading long
and flat steel products processor and distributor. That same year, Ternium and Nippon
Steel signed an agreement to form a company in Mexico for the manufacturing and sale
of hot-dip galvanized and galvannealed steel sheets to serve the Mexican automobile
In January 2012, Ternium became part of the control group of Usiminas, the largest
flat steel producer in Brazil with 9.5 million tons of crude steel capacity. The company
has strategically located facilities near the main consumers of steel in Brazil and iron
ore mines in the Serra Azul region.
In September of 2013, Ternium inaugurated a modern industrial center in Pesquería,
Mexico, a project developed by Ternium and Tenigal, the joint venture between
Ternium and Nippon Steel & Sumitomo Metal Corporation. The industrial center
produces high-end steel mainly for the automotive industry, with annual processing
capacity of 1.5 million tons of cold-rolled steel and 400,000 tons of galvanized steel.
In February 2017, Ternium announced a definitive agreement with the German
conglomerate thyssenkrupp AG to acquire, for a total 1.26 billion euros plus debt, a
100% interest in thyssenkrupp Slab International B.V. and its wholly-owned subsidiary
CSA Siderúrgica do Atlântico Ltda. in Brazil. The acquisition, completed in September