Companhia Siderúrgica Nacional (CSN) operates as an integrated steel manufacturer, holding a significant presence across Brazil and Latin America. Its operations are diversified across five key divisions: Steel, Mining, Logistics, Energy, and Cement. CSN’s comprehensive steel product range includes various flat steel offerings, such as specialized slabs (high, medium, low carbon, micro-alloyed, ultra-low-carbon, and interstitial free types). The company also provides hot-rolled and cold-rolled coils and sheets, galvanized products, and tin mill products, which are essentially flat-rolled low-carbon steel. Furthermore, CSN manufactures structural steel shapes like profiles, channels, UPE sections, and steel sleepers. These products serve a wide array of industries, including distribution, packaging, automotive, home appliances, and construction. In its mining segment, CSN extracts iron ore from the Casa de Pedra and Engenho mines near Congonhas, Brazil, and limestone and dolomite from the Bocaina mine in Arcos, both located in Minas Gerais state. The company additionally produces tin. Complementing these activities, CSN manages its own railway and port infrastructure, facilitating logistics. Its cement production is sold to a diverse customer base, including construction material stores, home centers, concrete producers, construction companies, mortar industries, and cement artifact manufacturers. Power generation is also a component of its business, with electricity produced from thermoelectric co-generation and hydroelectric plants. CSN also exports its products to international markets. Founded in 1941 and headquartered in São Paulo, Brazil, Companhia Siderúrgica Nacional functions as a subsidiary of Vicunha Aços S.A.


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