| Vendor | Spec | Unit | Price | Currency | Date |
| CNPC | China national standards | MT | 932.56 | USD | 20251209 |
| Shandong Jinwen Chem | China national standards | MT | 932.56 | USD | 20251209 |
| Shandong Langchem | China national standards | MT | 1066.79 | USD | 20251209 |
| Shandong Changyi Petro | China national standards | MT | 746.05 | USD | 20251209 |
| Aite Zhejiang | China national standards | MT | 1017.34 | USD | 20251209 |
| Shandong Huize Chem | China national standards | MT | 840.82 | USD | 20251208 |
| Aite Zhejiang | China national standards | MT | 1017.47 | USD | 20251208 |
| Shandong Hongyang Chem | China national standards | MT | 1130.52 | USD | 20251208 |
| Huizhou Jincheng Petro | China national standards | MT | 1102.26 | USD | 20251208 |
| Shandong Chambroad | China national standards | MT | 1073.99 | USD | 20251208 |