Companhia Siderurgica Nacional 

Companhia Siderúrgica Nacional operates as an integrated steel producer in Brazil and Latin America. It operates through five segments: Steel Industry, Mining, Logistics, Energy, and Cement. The company offers flat steel products, such as hot and cold rolled, galvanized, galvalume, pre-painted, and metal sheets products; coil, sheets, and derivatives; tiles and derivatives, pipes, and profiles; long steel products; steel packaging solutions for the food industry; chemical packaging solution; and carbochemical products. It also provides steel cutting services; produces and sells cement; operates railway and port facilities; and generates electric power from its thermoelectric co-generation and hydroelectric power plants. In addition, the company explores for iron ore reserves at Casa de Pedra and Engenho mines located in the city of Congonhas; and limestone and dolomite at the Bocaina mine located in the city of Arcos in the state of Minas Gerais, Brazil, as well as produces tin. Companhia Siderúrgica Nacional was founded in 1941 and is headquartered in São Paulo, Brazil.