| Vendor | Spec | Unit | Price | Currency | Date |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 265.69 | USD | 20250729 |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 279.85 | USD | 20250728 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 272.85 | USD | 20250728 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 188.9 | USD | 20250728 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 265.86 | USD | 20250728 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 273.04 | USD | 20250727 |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 280.04 | USD | 20250727 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 266.04 | USD | 20250727 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 273.04 | USD | 20250726 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 189.03 | USD | 20250726 |