GS Inima Environment, S.A., formerly known as OHL Medio Ambiente, develops and operates drinking, industrial, recycled, and sea and brackish water treatment plants. It engages in the design, construction, financing, operation and maintenance of seawater and brackish water desalination plants, industrial wastewater treatment plants, potable drinking water treatment plants, pilot and experimental plants, reuse plants, sludge treatment and drying systems, and ultrapure and special water production plants. The Madrid-based company is also involved in cogeneration activities through its water treatment plants. It has regional operations in Chile, Brazil, Mexico, Colombia and Peru. As of 2012, GS Inima Environment operates as a subsidiary of Korean firm GS Engineering & Construction Corp.