Companhia Siderúrgica Nacional (CSNA3.SA) Stock Analysis

Companhia Siderúrgica Nacional (CSN) is a major Latin American industrial conglomerate with an integrated footprint across **steel, mining, cement, logistics, and energy**. Its strategic assets—especially the Presidente Vargas steel mill and the high-grade, low-cost Casa de Pedra iron ore mine—make CSN systemically important within Brazil’s industrial economy. Revenue remains steel-led (~45% of revenue in 3Q25), but profitability is increasingly mining-driven: CSN Mineração contributes a smaller share of revenue (~37.5%) yet a disproportionate share of EBITDA, supported by premium ore quality and low C1 costs (~US$21.1/t in 3Q25). Cement has become a scaled #2 national platform (~17 Mt capacity) after major M&A, while logistics (port/rail) and energy provide operational hedges and export reliability. The investment debate is dominated by the balance sheet: net debt is ~R$35.83B and leverage peaked around ~3.5x in late 2024, pushing management into a decisive pivot from expansion to **deleveraging via asset sales (R$16–18B target)**. Although 2025 showed improving results and a return to quarterly profitability by 3Q, CSN remains highly sensitive to Selic rates, FX moves, and global commodity pricing—making the stock a high-beta play on macro normalization and successful execution of divestments.