| Vendor | Spec | Unit | Price | Currency | Date |
| Beijing Yanshan Petro | China national standards | MT | 522.19 | USD | 20251028 |
| Lihuayi Weiyuan Chem | China national standards | MT | 522.19 | USD | 20251028 |
| CNPC | China national standards | MT | 636.5 | USD | 20251028 |
| Shandong Langchem | China national standards | MT | 628.03 | USD | 20251028 |
| Beijing Yanshan Petro | China national standards | MT | 635.09 | USD | 20251028 |
| Sinopec | China national standards | MT | 635.09 | USD | 20251028 |
| Sinopec | China national standards | MT | 613.92 | USD | 20251028 |
| Shandong Langchem | China national standards | MT | 508.07 | USD | 20251028 |
| Shandong Jinwen Chem | China national standards | MT | 508.07 | USD | 20251028 |
| Shandong Yihe Chem | China national standards | MT | 536.3 | USD | 20251028 |