Hong Bo Cao

Wuxi Seamless Oil Pipe Co. Ltd. manufactures steel pipes for the petroleum industry. The company offers hot rolling seamless steel tubes & pipes, including tubing & casing, drill pipe, line pipe, boiler tube, tube for conveyance of fluid and bearing. It also produces shoot gun pipes, drill pipes and pipelines in various specifications. Wuxi Seamless Oil Pipe was founded in 1999 and is headquartered in Wuxi City, China

Hilong Group of Companies Ltd. engages in the manufacture and sale of oilfield equipment. Its products include pipeline coatings, welding wires, fluxes, petroleum continuous pipes, gas filing stations, heat shrink sleeves, drilling equipment and accessories, and thread protectors. Its services include petroleum and natural gas development, anticorrosive treatment of pipes, and related technical services. The company was founded on January 14, 2005 and is headquartered in Shanghai, China.

Shanghai Hilong Shine New Material Co., Ltd. engages in the development and production of special coatings and chemical materials. Its business activities include construction of anti-corrosion insulation, installation and construction of chemical oil equipment pipelines, and import and export business. The company was founded on November 12, 2003 and is headquartered in Shanghai, China.

Part of Hilong Holding Ltd., Shanghai Hilong Drill Pipe Co. Ltd. is a private company that manufactures drilling pipes and related equipment. The company is based in Shanghai, China.

Part of Shanghai Jintang Industry Co., Ltd., Shanghai Hilong Special Steel Pipe Co., Ltd. is a private company that engages in the manufacturing and distribution of oil and gas equipment. The company is based in Shanghai, China. The Chinese company was founded in 2009. Li Kai Zhang has been the CEO of the company since 2021.