Business: is an integrated oil and gas services company with 11 wholly-owned and holding companies headquartered in Beijing and equipment manufacturing bases in Chengdu, Sichuan Province and Lishui, Nanjing.The company is deeply engaged in the oil and gas industry, and its business covers four major sectors: high-end equipment manufacturing, engineering and technical services, oilfield digital information and integration, and new energy (including LNG, photovoltaic, differential pressure power generation, etc.).