| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Jiaxing Chem | China national standards | MT | 819.99 | USD | 20251204 |
| Shandong Changyi Petro | China national standards | MT | 742.23 | USD | 20251204 |
| Sinopec | China national standards | MT | 848.26 | USD | 20251204 |
| Shandong Jinwen Chem | China national standards | MT | 933.09 | USD | 20251204 |
| Shandong Yaoming Chem | China national standards | MT | 742.23 | USD | 20251204 |
| Shandong Dongming Petro | China national standards | MT | 787.47 | USD | 20251204 |
| Shandong Langchem | China national standards | MT | 1067.39 | USD | 20251204 |
| Shandong Changyi Petro | China national standards | MT | 742.01 | USD | 20251203 |
| Derun Chem | China national standards | MT | 932.81 | USD | 20251203 |
| CNPC | China national standards | MT | 932.81 | USD | 20251203 |