| Hebei Bangzhu Building Materials Co., Ltd | 2021-05-24 | Prefabricated Power Well, Concrete Manhole Cover Base, Prefabricated Box Culvert | 3000K CNY | Supported |
| Dongguan Hongfeng Construction Labor Subcontracting Co., Ltd | 2006-07-12 | Prefabricated Power Well, Sewage Treatment Plant, Ecological Soil Retaining Frame | 5000K CNY | Not Supported |
| Baoding Chenkun Mold Manufacturing Co., Ltd | 2022-11-30 | Prefabricated Power Well, Wind Power Generation Foundation Template, Flow Channel Mold | 50K CNY | Supported |
| Baoding Mengyuanwang Building Materials Co., Ltd | 2022-06-10 | Prefabricated Power Well, Ecological Slope Protection Frame, Inspect The Manhole Cover Plate | 1000K CNY | Not Supported |
| Jiaheng Cement Products Factory in Jiaxiang County | 2021-06-28 | Prefabricated Power Well, Non Tensioned Cement Pole, Cement Inspection Well | - | Not Supported |
| Tianjin Huacai Cement Components Co., Ltd | 2011-03-23 | Prefabricated Power Well, Septic Tank, Prefabricated Septic Tank | 2000K CNY | Not Supported |
| Anhui Taige New Building Materials Co., Ltd | 2024-06-25 | Prefabricated Power Well, Septic Tank, Cover Plate | 5200K CNY | Supported |
| Dingxing County Yuancheng Building Materials Manufacturing Co., Ltd | 2024-02-28 | Prefabricated Power Well, Cement Manhole Cover, Curbstone | 3000K CNY | Supported |
| Shandong Hengji Electric Power Engineering Co., Ltd | 2023-04-20 | Prefabricated Power Well, Cement Electric Pole, High Voltage Power Communication Pole | 10000K CNY | Not Supported |
| Shandong Xiangyi Electric Power Technology Co., Ltd | 2025-06-10 | Prefabricated Power Well, 10. 12. 15 Prestressed Cement Power Poles, Cement Chassis | 10000K CNY | Not Supported |