| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 281.58 | USD | 20250916 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 274.54 | USD | 20250916 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 190.07 | USD | 20250916 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 281.47 | USD | 20250915 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 274.43 | USD | 20250915 |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 281.47 | USD | 20250915 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 189.99 | USD | 20250915 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 253.32 | USD | 20250915 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 274.57 | USD | 20250914 |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 281.61 | USD | 20250914 |