| Sinopec Group | Sichuan Electric Power Construction Second Company | The Twelfth Engineering Bureau of China Water Resources and Hydropower Engineering | Fujian Electric Power Installation Co., Ltd. |
| China Yangtze Power Co., Ltd. | Ningbo Wenming Coal Coke Co., Ltd. | Sichuan Skyworth Power Engineering Co., Ltd. | Xinjiang Dadi Group Co., Ltd. |
| Zhongyuan Oilfield Construction Group Corporation | Yinchuan Wanqi Jinghua Coal Industry Co., Ltd. | Beijing Guohua Electric Power Co., Ltd. | China Resources Limited |
| Sinopec Zhongyuan Petroleum Exploration Bureau | Urumqi Puliwei Industrial Control Instrumentation Co., Ltd. | Gansu Zaozigou Gold Mine Co., Ltd. | Shengli Oilfield International Economic and Trade Co., Ltd. |
| Zhongyuan Switchboard Petroleum Equipment Co., Ltd. | Henan Transmission and Transformation Engineering Co., Ltd. | Tangshan Chentong Industrial Co., Ltd. | Inner Mongolia Minxi Trading Co., Ltd. |
| Sinopec Zhongyuan Construction Power Engineering Co., Ltd. | Ningxia Huitong Industry and Trade Co., Ltd. | Tangshan Jingye Composite Material Manufacturing Co., Ltd. | Ningxia Electric Power Construction Engineering Company |
| Shandong Electric Power Group Corporation | Xuchang Automatic Control System Co., Ltd. | Dongying Di Aifei Power Equipment Sales Co., Ltd. | Jiangxi Thermal Power Construction Company |
| Qinghai Electric Power Installation Company | Tangshan Best Industry and Trade Co., Ltd. | Northwest Industrial Power Technology Co., Ltd. | Henan Longsheng Petroleum Electromechanical Equipment Co., Ltd. |
| China General Nuclear Power Corporation | Nanchang Delixi Electric Co., Ltd. | Longye Power Group Co., Ltd. | Tianma Group Chongqing Branch |
| SDIC Power Holdings Co., Ltd. | Tianshui Nuowei Power Equipment Co., Ltd. | Wuhan Creed Power Technology Co., Ltd. | Guyuan Shengyuan Electric Power Industry Company |
| Tian Yuan Electric Assembly Co., Ltd. | Dongying Yongjin Precision Petroleum Machinery Manufacturing Co., Ltd. | Zigong Electric Power Installation Co., Ltd. | Tangshan Jialixi Industrial Co., Ltd. |
| Tiandiren Environmental Engineering Machinery Co., Ltd. | Shaanxi Keliheng Power Technology Co., Ltd. | Tangshan Antai Steel Co., Ltd. | Hebei Tianzhu Iron and Steel Group Hongtai Iron and Steel Company |
| Luoyang Municipal Garden Administration | Dongying Donghai Iron and Steel Group Co., Ltd. | Tangshan Chenguang Energy Saving Electromechanical Equipment Co., Ltd. | Hebei Dingying Chemical Co., Ltd. |
| Henan Hongye Biochemical Co., Ltd. | Tangshan Fengying Metal Products Co., Ltd. | Shengli Oilfield Dongfang Industrial Shengli Wire and Cable Company | Beijing Puen Energy Saving Engineering Technology Co., Ltd. |
| Henan Dahua Group Co., Ltd. | Yinchuan Iron and Steel Materials Co., Ltd. | Panxian Yiming Power Material Distribution Co., Ltd. | Hebei Construction and Installation Engineering Team |
| Hongye International Investment Group Co., Ltd. | Tengda Northwest Ferroalloy Co., Ltd. | Wuhai Electric Power Installation Co., Ltd. | Kunming Electric Power Engineering Co., Ltd. |
