Magnesita Refratários S.A. manufactures and sells refractory products worldwide. It operates through Refractories, Minerals, and Services segments. The company offers refractories in various forms, such as bricks, masses, mortars, and concrete. It also processes and sells industrial minerals, including caustic magnesia, as well as magnesite and dolomite sinter. In addition, the company is involved in the refractory installation and removal, production system monitoring, and electromechanical maintenance equipment services, as well as conducts post mortem tests. Its products are used in the steel, cement, and non-ferrous metal industrial applications. Magnesita Refratários S.A. was founded in 1940 and is based in Sâo Paulo, Brazil. Magnesita Refratários S.A. operates as a subsidiary of Dutch Brasil Holding B.V.