| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinling | China national standards | MT | 1491.87 | USD | 20260323 |
| Dongying Huatai Chem | China national standards | MT | 1491.87 | USD | 20260323 |
| Shandong Jinling | China national standards | MT | 1491.87 | USD | 20260323 |
| Dongying Huatai Chem | China national standards | MT | 1491.87 | USD | 20260323 |
| Dongying Jinmao Alum | China national standards | MT | 1478.11 | USD | 20260313 |
| Dongying Huatai Chem | China national standards | MT | 1478.11 | USD | 20260313 |
| Shandong Jinling | China national standards | MT | 1478.11 | USD | 20260313 |
| Dongying Jinmao Alum | China national standards | MT | 1648.4 | USD | 20260309 |
| Dongying Huatai Chem | China national standards | MT | 1648.4 | USD | 20260309 |
| Shandong Jinling | China national standards | MT | 1648.4 | USD | 20260309 |