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Usinas Siderúrgicas de Minas Gerais S.A.
Usiminas makes and sells steel products, iron ore, and industrial equipment, mainly in Brazil.
Usiminas is one of Brazil's biggest steelmakers. It turns iron ore into flat steel — the giant coils that get pressed into car bodies, household appliances, and construction materials. Its main customers are manufacturers and builders who need steel in large, steady volumes, and the company also mines and sells iron ore and makes capital goods for industry.
The business runs on heavy machinery and heat. Iron ore is melted in blast furnaces at huge plants in the state of Minas Gerais, then rolled into thin sheets. Steel is a commodity, so Usiminas competes largely on price, reliability, and proximity to customers — its rivals include other big steel producers such as Gerdau and CSN in Brazil, plus cheap imports from China that have squeezed local mills. When construction and carmaking slow down, demand for steel falls fast, and prices follow. That makes Usiminas a cyclical company: profits swell when Brazil's economy is booming and shrink when it stalls. Steel mills are expensive to build and costly to keep running, so the company carries significant debt loads and must keep plants busy to spread costs. It also depends on iron ore prices and energy costs, both of which swing around.
The company has a long history as a state-built champion before being privatized in the 1990s, and control has since passed through a complex shareholder fight between groups from Brazil and Japan. Today it remains a core piece of Brazil's industrial base — a business that is essential when the economy is building things, and painful to own when it isn't.
Saved answer · last researched 12 Nov 2026