China Energy Technology and Service Limited is devoted to promote the resource conservation, use and develop the circular economy simultaneously, vigorously carries out clean production, energy-saving and emission reduction, develops the circular economy, and works hard to be the resource-conservation type and environmental-friendly enterprise. On the basis of circular use of raw material and echelon development of product, the group has formed multiple circular chains among the internal enterprise and the social resource, complex circular use of energy source and water resources in manufacturing.