Shengli Oil & Gas Pipe Holdings Limited, an investment holding company, engages in the design, process, manufacture, and sale of welded pipes for oil and gas pipeline in Mainland China. The company operates through two segments, Pipe Business and Trading Business. It produces submerged-arc helical welded pipes that are primarily used to transport crude oil, refined petroleum products, natural gas, and other related products, as well as used for the oil and infrastructure industry. The company is also involved in the provision of anti-corrosion and insulation services for oil and gas pipelines, and other construction and manufacturing applications; trading of environmental energy equipment, fuel oil and chemical products, and commodities; and provision of new energy technical development services.