Dongkuk Steel Mill Company Limited engages in the manufacture and sale of steel products in South Korea and internationally. It offers pre-coated metal products for home appliances under the Luxteel, Appsteel, and supersmp brand names; galvanized steel for home appliances, automotive parts, ducts, and sound proof walls, as well as construction industries; electro galvanized steel for fire doors and receivers; galvalume steel for roof materials, walls, pipes, fences, and home appliances; and Mg alloy galvanized steel for roof materials and walls. The company also provides steel plates and DK–LP plates for shipbuilding, marine plants, boiler and pressure vessels, and pipes; reinforcing, seismic resistant, threaded, and coil reinforcing bars for civil engineering and construction industries. In addition, it offers H-beams for buildings, factories, and civil engineering industries; angles for truss, shipbuilding, and iron tower; channels for truss, braces, and studs; flat bars for machine equipment, construction materials, and studs; F-shape and C-shape profiles for formworks, construction sites, and studs; round bars for stiffeners and deformed stiffeners for civil engineering and tunnel construction; and DK-deck used as road decking plates. The company was founded in 1954 and is headquartered in Seoul, South Korea.