Hankook Steel Co., Ltd. manufactures and sells steel products in South Korea. The company offers castings, including rudder horns, propeller boss, lower casting, stern boss and tubes, and tillers for shipbuilding; crowns, frames, column, discharge heads, roll chocks, slag pots, tee dies, bending dies, girth gears, holding blocks, mill housing, tables, and trunnions for industrial purpose; and turbine casting, valve body, butterfly valves, and gate valves for power generation applications. It also provides ingot for forging, such as general, round, and E.S.R ingots. The company was founded in 1960 and is headquartered in Haman-myeon, South Korea.