Nakayama Steel Works, Ltd. engages in the steel, engineering, building materials, and real estate businesses in Japan. It offers steel coil products, including hot, pickling, plated, slit, and striped /pattern coils; and steel sheet products, such as thick steel and NP steel plates, leveler sheets, and checkered steel and pattern steel plates, as well as hot rolled steel products. The company also provides bars and wire rod products comprising steel bars, burn-in- coils, and wire rods, as well as lightweight C-shaped steel products, steel pipes, steel sheets, secondary wire rod products, billets, and by-products. In addition, it offers steel fish, breeding, and seaweed reefs; and casting machine engineering products, including rolls, valves, and casting and processing equipment. Further, the company plans, designs, and constructs factories, warehouses, offices, etc. Additionally, it engages in manufacturing and processing of lightweight shaped steel products, electro sewn steel pipes, construction-related products, etc.; buying, leasing, brokerage, and sale of real estate properties; and port transportation and freight vehicle transportation businesses. The company provides general shipping and shipping brokerage services; and environmental services. Nakayama Steel Works, Ltd. was incorporated in 1923 and is headquartered in Osaka, Japan.