Aguas Andinas S.A., together with its subsidiaries, constructs and operates as a water utility company in Chile. It engages in the catchment of raw water; production, transportation, and distribution of water; and the collection, treatment, and disposal of sewage. The company also provides integral advisory and management services in sewage and liquid waste; sells equipment and nonconventional renewable energies; develops energy projects relating to sanitation companies; and offers laboratory sampling and environmental analysis services. It delivers potable water, sewerage, and wastewater treatment services to approximately two million residential, commercial, and industrial clients. The company was formerly known as Empresa Metropolitana de Obras Sanitarias and changed its name to Aguas Andinas S.A. in 2001. The company was founded in 1861 and is based in Santiago, Chile. Aguas Andinas S.A. is a subsidiary of Inversiones Aguas Metropolitanas S.A.