| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 280.25 | USD | 20250805 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 273.24 | USD | 20250805 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 266.23 | USD | 20250805 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 189.17 | USD | 20250805 |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 280.13 | USD | 20250804 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 273.13 | USD | 20250804 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 266.13 | USD | 20250804 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 189.09 | USD | 20250804 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 272.74 | USD | 20250803 |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 279.74 | USD | 20250803 |