Companhia Siderurgica Nacional operates throughout the entire steel production chain, from the mining of iron ore to the production and sale of a range of steel products, including coated galvanized flat steel and tinplate. The Company operates through five segments: steel, mining, cement, logistics and energy. The steel segment is engaged in the production, distribution and sale of flat steel, long steel, metallic containers and galvanized steel, with operations in Brazil, the United States, Portugal and Germany. The mining segment encompasses the activities of iron ore and tin mining. The cement segment is engaged in the cement production, distribution and sale operations. The Company operates a port terminal for containers, Sepetiba Tecon, at Itaguai Port, in the state of Rio de Janeiro. The Company is an industrial consumer of electric power in Brazil. The Company's steel sales are focused on the domestic market.