São Martinho S.A., together with its subsidiaries, engages in the production and sale of sugar, ethanol, and other sugarcane byproducts in Brazil. The company operates through Sugar, Ethanol, Electric Power, Real Estate Business, Yeast, and Other Products segment. It offers a range of raw sugar; hydrated ethanol, which is used in tanks of cars; anhydrous ethanol that is used as a gasoline additive in gasoline-powered vehicles; and industrial ethanol, which is primarily used in the production of paints, cosmetics, and alcoholic beverages. The company also generates electricity from sugarcane bagasse; and provides byproducts, including yeast used in animal feed, as well as fusel oil, which is used as a solvent and pure amyl ethanol. In addition, it is involved in the cultivation of sugarcane; development, rental, and sale of real estate properties; import and export of goods, products, and raw materials; development of land through agricultural lease and partnerships; exploitation of real estate and mining enterprises; and provision of general product storage services. The company was founded in 1914 and is based in São Paulo, Brazil. São Martinho S.A. is a subsidiary of LJN Participações S.A.