Técnicas Reunidas, S.A., a general contractor, engages in the engineering, design, and construction of various industrial facilities primarily in refinery, gas, and power sectors worldwide. The company operates through Oil and Gas, Power, and Infrastructure and Industry segments. It designs and constructs basic refining units, conversions, octane enhancement units, and other refining and treatment units in the refining sector; processing and chemical units and plants in the petrochemicals sectors; and gas treatment and fractionation plants, and oil and gas pipelines and compressor stations, as well as natural gas liquefaction, regasification, and storage plants. The company also provides consulting, engineering, supply, and construction services for a range of electricity generating plants, such as conventional thermal plants, combined cycle power plants, gasification integrated with combined cycle, nuclear plants, co-generators, solar power plants, fossil fuel power plants, and treatment and/or recovery of biomass and waste power plants; supplies turnkey plants; and performs plant operation and maintenance services. In addition, it executes project works in infrastructure and environmental areas, including water desalination, drinking water supply and treatment, urban and industrial waste water treatment, urban and industrial solid waste treatment, treatment and revalorization of special wastes, and other activities; airports and air transport; architecture, buildings, and urbanism; roads and railways; and ports and coasts. Further, the company offers proprietary know-how services in the fertilizers and nitric acid; and hydrometallurgy and electrochemistry areas. The company was formerly known as Lummus Española, S.A. and changed its name to Técnicas Reunidas, S.A. in 1972. Técnicas Reunidas, S.A. was founded in 1960 and is headquartered in Madrid, Spain.