| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chem | China national standards | MT | 932.56 | USD | 20251209 |
| Shandong Jinwen Chem | China national standards | MT | 932.56 | USD | 20251209 |
| Sinopec | China national standards | MT | 1003.21 | USD | 20251209 |
| CNPC | China national standards | MT | 932.56 | USD | 20251209 |
| Shandong Langchem | China national standards | MT | 974.95 | USD | 20251209 |
| Shandong Hongyang Chem | China national standards | MT | 1130.37 | USD | 20251209 |
| Sinopec | China national standards | MT | 727.68 | USD | 20251209 |
| Shandong Chambroad | China national standards | MT | 734.74 | USD | 20251209 |
| Shandong Yaoming Chem | China national standards | MT | 741.81 | USD | 20251209 |
| Shandong Chambroad | China national standards | MT | 1073.86 | USD | 20251209 |