CEI is well prepared for whole business chain services on long-distance oil(gas)transmission project, such as making proposal , conducting scheme design, feasibility research, and engineering design, is capable of developing route of pipeline transmission, doing crossing design, analyzing transmission process stability/dynamic simulation, automatic control system design and technology of other matching facility design.

The projects CEI has completed include Hongrun Oil Transmission Pipeline of Sinochem, Dongjiakou-Yishui oil Transmission pipeline, West-to-East Natural Gas transmission Pipeline, and Shannxi-Beijing Natural Gas Transmission Pipeline Project.