Doosan Corporation operates with its subsidiaries in power generation facilities, industrial facilities, construction machinery, engines, and construction across Korea, the United States, Asia, the Middle East, Europe, and other regions. 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. It also constructs NSSS, BOP, turbines, desalination and water treatment facilities, plant installations, and roads; operates golf clubs and condominiums; and manufactures and sells eco-friendly commercial vehicles, industrial robots, hydrogen fuel cell power packs, construction equipment, integrated circuits, oil hydraulic machinery, and small construction machines. Additionally, it engages in fuel cell and renewable energy, logistics automation facilities, semiconductor manufacturing testing and engineering, electric power generation and sale, fuel cell research and development, forklift manufacturing and leasing, financial investment, sports, education and training, and wholesale and retail. The company was formerly known as OB Beer, Ltd. and changed its name to Doosan Corporation in September 1998. Founded in 1896, it is headquartered in Seoul, South Korea.