| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 210.17 | USD | 20250816 |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 210.17 | USD | 20250815 |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 210.27 | USD | 20250814 |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 210.23 | USD | 20250813 |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 210.03 | USD | 20250812 |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 210.07 | USD | 20250811 |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 210.14 | USD | 20250810 |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 210.14 | USD | 20250809 |