| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhiheng | China national standards | MT | 1171.08 | USD | 20251121 |
| Lihuayi Shandong | China national standards | MT | 1382.72 | USD | 20251121 |
| CNPC | China national standards | MT | 1213.4 | USD | 20251121 |
| Shandong Langchem | China national standards | MT | 1298.06 | USD | 20251121 |
| Lihuayi Shandong | China national standards | MT | 895.94 | USD | 20251121 |
| Shandong Langchem | China national standards | MT | 1333.33 | USD | 20251121 |
| Lihuayi Shandong | China national standards | MT | 895.94 | USD | 20251121 |
| Sinopec | China national standards | MT | 1213.4 | USD | 20251121 |
| Kunlun Daqing Petro | China national standards | MT | 1199.29 | USD | 20251121 |
| Shandong Jinwen Chem | China national standards | MT | 1199.29 | USD | 20251121 |