| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Dongming Petro | China national standards | MT | 787.47 | USD | 20251204 |
| Shandong Langchem | China national standards | MT | 1067.39 | USD | 20251204 |
| Derun Chem | China national standards | MT | 933.09 | USD | 20251204 |
| Huizhou Jincheng Petro | China national standards | MT | 876.54 | USD | 20251204 |
| Sinopec | China national standards | MT | 848.26 | USD | 20251204 |
| Shandong Chambroad | China national standards | MT | 728.09 | USD | 20251204 |
| Shandong Yihe Chem | China national standards | MT | 798.78 | USD | 20251204 |
| Shandong Yihe Chem | China national standards | MT | 805.85 | USD | 20251204 |
| Zhenghe | China national standards | MT | 933.09 | USD | 20251204 |
| Shandong Jinwen Chem | China national standards | MT | 933.09 | USD | 20251204 |