| Vendor | Spec | Unit | Price | Currency | Date |
| Chongqing Changfeng | China national standards | MT | 1732.82 | USD | 20260424 |
| Shandong Jinling | China national standards | MT | 1689.14 | USD | 20260424 |
| Dongying Huatai Chem | China national standards | MT | 1689.14 | USD | 20260424 |
| Dongying Jinmao Alum | China national standards | MT | 1689.14 | USD | 20260424 |
| Sinopec | China national standards | MT | 1725.54 | USD | 20260424 |
| Huai'an Fuqiang | China national standards | MT | 1703.7 | USD | 20260424 |
| Chongqing Changfeng | China national standards | MT | 1733.81 | USD | 20260423 |
| Shandong Jinling | China national standards | MT | 1690.1 | USD | 20260423 |
| Dongying Huatai Chem | China national standards | MT | 1690.1 | USD | 20260423 |
| Dongying Jinmao Alum | China national standards | MT | 1690.1 | USD | 20260423 |