| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhiheng | China national standards | MT | 634.54 | USD | 20251023 |
| Shandong Hongyang Chem | China national standards | MT | 669.79 | USD | 20251023 |
| Shandong Langchem | China national standards | MT | 507.63 | USD | 20251023 |
| Sinopec | China national standards | MT | 613.38 | USD | 20251023 |
| Shandong Langchem | China national standards | MT | 634.54 | USD | 20251023 |
| Beijing Yanshan Petro | China national standards | MT | 634.54 | USD | 20251023 |
| Shandong Langchem | China national standards | MT | 627.49 | USD | 20251023 |
| CNPC | China national standards | MT | 635.95 | USD | 20251023 |
| Shandong Jinwen Chem | China national standards | MT | 507.63 | USD | 20251023 |
| Chengdu Rongjiaxin Chem | China national standards | MT | 676.84 | USD | 20251023 |