| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 189.18 | USD | 20250819 |
| Shandong Hezhan Chemical Co., Ltd. | China national standards | MT | 294.29 | USD | 20250819 |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 280.42 | USD | 20250818 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 273.41 | USD | 20250818 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 189.28 | USD | 20250818 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 252.38 | USD | 20250818 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 252.2 | USD | 20250817 |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 280.23 | USD | 20250817 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 273.22 | USD | 20250817 |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 280.23 | USD | 20250816 |