Brazilian company Magnesita Refratários S.A., Latin America's largest refractory brick manufacturer, engages in the production and supply of refractory materials for the steel and cement industrial sectors in South America, North America, Europe and Asia. The company operates through three segments: refractory solutions, minerals and services. Its mineral resource division sells talc, caustic magnesia and some other lower added-value products and magnesite sinter, a product which is dependent on domestic demand. The firm owns one of the largest talc and dolomite reserves in the world. Founded in 1939, Magnesita operates 28 mining and industrial units with a refractory brick production capacity of over 1.4Mt/y. In 2013 the company acquired Chinese refractory brick producer Dalian Mayerton (DMR) with the aim of increasing Magnesita's production capacity of mag-carbon refractory bricks in order to better serve areas where the Brazilian company had a marginal presence.