| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 189.15 | USD | 20250816 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 273.22 | USD | 20250816 |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 280.23 | USD | 20250815 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 273.22 | USD | 20250815 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 252.2 | USD | 20250815 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 189.15 | USD | 20250815 |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 280.36 | USD | 20250814 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 273.35 | USD | 20250814 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 189.24 | USD | 20250814 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 252.32 | USD | 20250814 |