China National Environmental Protection Group (CNEPG), a subsidiary of CECEP, was established in 1985 and is a national environmental protection platform established by the former State Environmental Protection Administration. It has taken the lead in building demonstration projects such as grate furnace waste incineration power generation, toxic and hazardous solid waste treatment, high-temperature medical waste treatment, and sludge incineration power generation, with hundreds of projects under construction and operation. The Solid Waste Ecological Recycling Industrial Park in Linyi has formed a comprehensive solution for urban solid waste that can be replicated and promoted. The industrial park won the second prize of the 2020 National Science and Technology Progress Award.

CECEP is one of the earliest domestic enterprises engaged in soil and groundwater pollution remediation and heavy metal treatment. The business covers many aspects such as mines, wasteland, river basin water bodies and lake sediments, and has undertaken nearly 100 polluted sites and groundwater restoration projects in 21 provinces and cities. It is the contractor of the National Environmental Protection Industrial Contaminated Site and Groundwater Remediation Engineering Technology Center. It won the second prize of the National Science and Technology Progress Award in 2016. CECEP has rich experience in tailings pond design, governance, tailings water treatment and solving major tailings dam safety and environmental protection issues. It has completed more than 100 projects of various types and won 6 provincial and ministerial-level science and technology progress awards.