Based on the development, storage, transportation and comprehensive utilization of oil and natural gas, we provide global customers with one-stop solutions for the clean energy value chain, serve the society, and advocate sustainable development; the business scope covers natural gas processing and comprehensive utilization, oil and gas gathering and transportation and stations (library) construction, petroleum and natural gas chemical industry, geothermal resource utilization; can provide customers with professional services of pre-consultation, design, procurement, construction, manufacturing, installation and commissioning and operation and maintenance; successively won the "ENR International Engineering Design Enterprise Top 225" and "" ENR Top 250 International Contractors".