| 1 | Gravel Contact Aerated Oxidation Facility | 2023-05-18 |
| 2 | Nanhu Gravel Contact Process Facility | 2023-05-18 |
| 3 | Chengmei Gravel Contact Process Facility | 2023-05-18 |
| 4 | Guiyang Gravel Contact Process Facility | 2023-05-18 |
| 5 | Zhongxiao Gravel Contact Process Facility | 2023-05-18 |
| 6 | Jingmei Gravel Contact Process Facility | 2023-05-18 |