China National Offshore Oil Corporation is diversified industrial group providing energy technology services, FPSO production technology services, energy logistics services, safety and environmental protection and energy-saving products and services. Relying on the development of energy industry, the company's business covers most links of the oil and gas industry chain from upstream to downstream, forming four core business sectors: energy technology service, FPSO production technology service, energy logistics service, safety and environmental protection and energy conservation. It has become an innovative enterprise that can provide one-stop service and has the ability of sustainable development.