Bookook Steel Co., Ltd. manufactures and sells steel products primarily for the automotive, home appliance, machinery, shipbuilding, and construction industries. The company produces hot-rolled and cold-rolled steel sheets and coils; galvanized steel pipes; carbon steel pipes; carbon steel square pipes; skelps; steel sheets; section steels; shaped bars; and molded products, which it supplies to automobile-related companies, home appliance manufacturers, steel distributors, and other end-users through its own sales agencies and subsidiaries. Founded in 1948 and headquartered in Gwangju, South Korea, Bookook Steel operates production facilities in the Incheon Mechanical Industries Complex area and maintains a presence focused on the domestic Korean market. In June 2025, the company announced an equity buyback plan, with tranche updates reported through October 2025, reflecting efforts to enhance shareholder value amid stable operational performance evidenced by a 0.76% profit margin in the most recent quarter ending June 30, 2025.