| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chem | China national standards | MT | 1121.22 | USD | 20251120 |
| Shandong Hongyang Chem | China national standards | MT | 1187.5 | USD | 20251120 |
| Shandong Junfeng | China national standards | MT | 1198.79 | USD | 20251120 |
| Shandong Langchem | China national standards | MT | 1198.79 | USD | 20251120 |
| Shandong Langchem | China national standards | MT | 1177.63 | USD | 20251120 |
| Shandong Langchem | China national standards | MT | 1212.89 | USD | 20251120 |
| Shandong Langchem | China national standards | MT | 1212.89 | USD | 20251120 |
| Shandong Zhiheng | China national standards | MT | 1170.58 | USD | 20251120 |
| Shandong Zhiheng | China national standards | MT | 1128.27 | USD | 20251120 |
| Shandong Yeyang Chem | China national standards | MT | 1241.1 | USD | 20251120 |