Companhia Siderúrgica Nacional (CSN), historically associated with the “National Steel” name and traded in the United States under the symbol SID, is a Brazilian industrial company headquartered in São Paulo. Founded in 1941, CSN operates one of Brazil’s major integrated steelmaking complexes in Volta Redonda, in the state of Rio de Janeiro.
The company produces flat steel products, including galvanized, tinplate and other coated steels, as well as hot- and cold-rolled steel. Its products serve industries such as automotive manufacturing, construction, packaging, appliances and general industrial production. CSN also operates businesses involved in iron ore mining, cement production, logistics and energy generation, supporting its vertically integrated industrial model.
CSN serves customers in Brazil and international markets through exports and commercial operations. The company has historically been led by Benjamin Steinbruch, who has served as its chief executive and chairman. Its operations include mining assets in Brazil, steel facilities, transportation infrastructure and port logistics used to move raw materials and finished products.
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