WONIL SPECIAL STEEL Co., Ltd. engages in the manufacture of steel products. It operates through the Special Steel and Forging business divisions. The Special Steel division produces plastic mold steel, cold and hot rolled steel, high speed tool steel, and structural steel. The Forging division focuses on major ship parts, industrial equipment, and construction equipment. The company was founded on October 14, 1977 and is headquartered in Siheung-si, South Korea.