SK그룹
SK Group began when the current founders acquired Sunkyong Textiles (established during the Japanese rule as a joint venture with the Kyoto-based Kyoto Textile Company) in 1953. In 1958, the company manufactured Korea's first polyester fiber on company grounds. It established Sunkyong Fibers Ltd. in July 1969, and started to produce original yarn. In 1973, SK then established Sunkyong Oil, beginning a vertical integration strategy to manage production, "From Petroleum to Fibers". That same year, the company acquired the Walkerhill Hotel.