| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Wonfull Petro | China national standards | MT | 818.28 | USD | 20251031 |
| Shandong Xima | China national standards | MT | 705.42 | USD | 20251031 |
| Shandong Laya Chem | China national standards | MT | 747.74 | USD | 20251031 |
| Shandong Langchem | China national standards | MT | 888.83 | USD | 20251031 |
| Jinan Jinrihe Chem | China national standards | MT | 705.42 | USD | 20251031 |
| Shandong Qiangsen Chem | China national standards | MT | 804.18 | USD | 20251031 |
| Shandong Jinshenrun Chem | China national standards | MT | 747.74 | USD | 20251031 |
| Shandong Xima | China national standards | MT | 705.42 | USD | 20251031 |
| Shandong Jinwen Chem | China national standards | MT | 853.56 | USD | 20251031 |
| Shandong Zhongke Taihua | China national standards | MT | 945.26 | USD | 20251031 |