Companhia Siderurgica Nacional primarily operates as an integrated steel producer in Brazil. The company principally produces carbon steel and various steel products. Its products include slabs, which are semi-finished products used for processing hot-rolled, cold-rolled, or coated coils and sheet products; hot-rolled products that comprise heavy-gauge hot-rolled coils and sheets, and light-gauge hot-rolled coils and sheets; cold-rolled products, including cold-rolled coils and sheets; and galvanized products consisting of flat-rolled steel coated with zinc or a zinc-based alloy. The company also offers tin mill products, which consist of coated or uncoated flat-rolled low-carbon steel coils or sheets, such as low tin coated steel, tin free steel, and tin and black plate products. In addition, it owns iron ore, limestone, and dolomite mines in Minas Gerais, as well as maintains strategic investments in railroads and power supply companies. Further, the company engages in financial operations and trading, package production, cement production, trading of electricity, and investment funds, as well as the provision of maritime port services. Companhia Siderurgica Nacional sells its steel products as a raw material for various manufacturing industries, including the automotive, home appliance, packaging, construction, and steel processing industries primarily in Asia, North America, Latin America, and Europe. The company offers its products to customers directly through its sales force, as well as through distributors for subsequent resale. Companhia Siderurgica Nacional was founded in 1941 and is headquartered in Sao Paulo, Brazil.