Doosan Corporation is a South Korean conglomerate that, through its subsidiaries, operates in power generation facilities, industrial facilities, construction machinery, engines, and construction across Korea, the United States, Asia, the Middle East, Europe, and other international markets. Its business segments include Electro-Materials BG, Digital Innovation BU, Doosan Enerbility, Doosan Bobcat, Doosan Fuel Cell, and Others. The company manufactures and sells copper clad laminates, castings, and forgings, and provides IT system development and maintenance, professional, scientific, and technical services, and engineering services. It is also involved in construction of NSSS, BOP, turbines, desalination and water treatment facilities, plant installation, and roads, as well as golf club and condominium operations, eco-friendly commercial vehicles, industrial robots, hydrogen fuel cell power packs, construction equipment, integrated circuits, oil hydraulic machinery, and small construction machines. The company was formerly known as OB Beer, Ltd. and changed its name to Doosan Corporation in September 1998. It was founded in 1896 and is headquartered in Seoul, South Korea.