Besalco S.A., through its subsidiaries, operates as a construction company in Chile. It designs, constructs, and sells houses and apartments; develops, constructs, maintains, and operates hydroelectric plants; and manages concessions in public and private infrastructure, ports, airports, and other sectors. The company also engages in the construction of roads, reservoirs, tunnels, tailings dams, bridges, viaducts, gas pipelines, irrigation works, hydroelectric plants, sanitary works, mining works, hospitals, stadiums, residential and commercial buildings, airports, and seaports, as well as works for the Santiago subway and State Railways; engineering and construction of industrial plants; and design and construction of electrical energy transmission systems, including high, medium, and low voltage lines and substations. In addition, it provides mining, earthworks, crushing, sorting, processing, materials loading and transporting, salt harvesting, tailings dam operation, equipment spot leasing, harvesting forest, debarking, and ready-mixed concrete transportation services, as well as chips chipping and transportation services. The company was formerly known as Sanz, Bezanilla y Salinas Limitada and changed its name to Besalco S.A. in January 1995. Besalco S.A. was incorporated in 1944 and is based in Santiago, Chile.