| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 625.86 | USD | 20251009 |
| CNPC | China national standards | MT | 634.3 | USD | 20251009 |
| Shandong Jinwen Chem | China national standards | MT | 506.31 | USD | 20251009 |
| Shandong Qiangsen Chem | China national standards | MT | 506.31 | USD | 20251009 |
| Shandong Qiangsen Chem | China national standards | MT | 506.31 | USD | 20251009 |
| Shandong Yihe Chem | China national standards | MT | 534.44 | USD | 20251009 |
| Beijing Yanshan Petro | China national standards | MT | 599.14 | USD | 20251009 |
| Shandong Yihe Chem | China national standards | MT | 527.41 | USD | 20251009 |
| Beijing Yanshan Petro | China national standards | MT | 520.38 | USD | 20251009 |
| Lihuayi Weiyuan Chem | China national standards | MT | 520.38 | USD | 20251009 |