Maruichi Steel Tube Ltd. manufactures and sells steel tubes, surface-treated steel sheets, and poles through its subsidiaries in Japan, North America, and Asia. Its steel tubes serve applications such as scaffolding, structural columns, automotive parts, greenhouse framing, gas and water pipes, electrical conduits, and tapered poles. The company also offers corrosion-resistant steel sheets and steel structures, including lighting poles, traffic light poles, lighting towers, traffic sign poles, and ETC gantries under the Maruichi Pole brand. Incorporated in 1947, it is headquartered in Osaka, Japan.