| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 274.4 | USD | 20250906 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 189.97 | USD | 20250906 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 189.97 | USD | 20250905 |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 281.44 | USD | 20250905 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 274.4 | USD | 20250905 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 281.44 | USD | 20250905 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 190.0 | USD | 20250904 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 253.34 | USD | 20250904 |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 281.48 | USD | 20250904 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 274.45 | USD | 20250904 |