As of April 3, 2017, Gamesa Corporación Tecnológica, S.A. was acquired by Siemens Wind HoldCo, S.L., in a reverse merger transaction. Gamesa Corporación Tecnológica, S.A. develops, constructs, and sells wind energy plants in Spain, rest of Europe, the United States, China, India, Brazil, Mexico, and rest of world. The company operates in two segments, Wind Turbines; and Operations and Maintenance. It also develops, constructs, and sells wind farms; and designs, manufactures, and sells wind turbines. The company manages wind turbines of approximately 35,200 megawatts. In addition, the company manufactures blades and moulds; and offers operations and maintenance services. Further, it manufactures and sells photovoltaic power station inverters; designs, validates, manufactures, and supplies electrical system components for wind turbines; manufactures generators, converters, and control cabins; generators for hydroelectric power plants; designs and installs classification motors in nuclear power plants, and alternators and motors for marine use; and offers power electronics products, electrical converters and variators, charging points for electric vehicles, and permanent magnets, as well as custom-built solutions for rotating electrical machines and power electronics. Additionally, the company engages in the manufacture and sale of electricity generators and electronic equipment; and trading raw materials, as well as offers engineering and administrative management services. Gamesa Corporación Tecnológica, S.A. was founded in 1976 and is headquartered in Zamudio, Spain.