Hilong Holding Limited is an investment company, which engages in the manufacture and distribution of oil and gas drilling equipment. The company is headquartered in Shanghai, Shanghai and currently employs 2,359 full-time employees. The company went IPO on 2011-04-21. The firm primarily operates through three segments. The Oilfield Equipment Manufacturing and Services segment primarily engaged in the production of oilfield equipment. The Oilfield Services segment primarily includes the provision of well drilling services, integrated comprehensive services, oil country tubular goods (OCTG) trading and related services to oil and gas producers. The Offshore Engineering Services segment primarily engaged in the provision of offshore engineering services and offshore design services. The firm conducts its businesses in domestic and overseas markets.