| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 280.04 | USD | 20250726 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 273.04 | USD | 20250725 |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 280.04 | USD | 20250725 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 266.04 | USD | 20250725 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 189.03 | USD | 20250725 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 273.17 | USD | 20250724 |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 280.17 | USD | 20250724 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 189.12 | USD | 20250724 |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 280.06 | USD | 20250723 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 266.05 | USD | 20250723 |