- Business
- Dongkuk Steel Mill Company Limited manufactures and sells steel products primarily for shipbuilding, construction, automotive, and home appliance industries in South Korea and internationally. The company produces pre-coated metal products including Luxteel, Appsteel, and Supersmp brands for home appliances; galvanized steel for automotive parts, ducts, construction, and soundproof walls; electro-galvanized steel for fire doors; galvalume and Mg alloy galvanized steel for roofing, walls, pipes, fences, and appliances; steel plates, DK-LP plates, and clad steel plates for shipbuilding, marine plants, boilers, pressure vessels, and pipes; reinforcing bars including seismic-resistant, threaded, and coil types for civil engineering; H-beams, angles, channels, flat bars, F-shape and C-shape profiles, round bars, and DK-deck for buildings, factories, truss structures, formworks, and road decking. Founded in 1954 and headquartered in Seoul, South Korea, Dongkuk Steel Mill operates manufacturing plants in Pohang, Incheon, Dangjin, and Busan, serving as a key electric arc furnace producer in the domestic market. In July 2025, the company acquired Ferrum Tower in Seoul for 645 billion won from Samsung Life Insurance, marking the completion of a decade-long business restructuring and a shift toward solid growth; its affiliate Dongkuk Coated Metal completed the acquisition of Aju Steel in early 2025, boosting color-coated steel capacity by 280,000 tons annually to over 1.1 million tons.