| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1333.33 | USD | 20251121 |
| Sinopec | China national standards | MT | 1213.4 | USD | 20251121 |
| Kunlun Daqing Petro | China national standards | MT | 1199.29 | USD | 20251121 |
| Beijing Yanshan Petro | China national standards | MT | 1220.46 | USD | 20251121 |
| Shandong Xima | China national standards | MT | 973.54 | USD | 20251121 |
| Lihuayi Shandong | China national standards | MT | 907.23 | USD | 20251121 |
| Lihuayi Shandong | China national standards | MT | 895.94 | USD | 20251121 |
| Shandong Langchem | China national standards | MT | 1298.06 | USD | 20251121 |
| Lihuayi Shandong | China national standards | MT | 895.94 | USD | 20251121 |
| Shandong Qiangsen Chem | China national standards | MT | 1044.09 | USD | 20251121 |