| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 190.12 | USD | 20250909 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 274.62 | USD | 20250909 |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 281.66 | USD | 20250909 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 281.58 | USD | 20250908 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 274.54 | USD | 20250908 |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 281.58 | USD | 20250908 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 190.06 | USD | 20250908 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 253.42 | USD | 20250908 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 274.4 | USD | 20250907 |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 281.44 | USD | 20250907 |