| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 529.31 | USD | 20251124 |
| Qingdao Shengze Chem | China national standards | MT | 529.31 | USD | 20251124 |
| Beijing Yanshan Petro | China national standards | MT | 522.25 | USD | 20251124 |
| CNPC | China national standards | MT | 636.58 | USD | 20251124 |
| Shandong Qiangsen Chem | China national standards | MT | 508.14 | USD | 20251124 |
| Shandong Langchem | China national standards | MT | 635.17 | USD | 20251124 |
| Shandong Langchem | China national standards | MT | 628.11 | USD | 20251124 |
| BASF YPC | China national standards | MT | 606.94 | USD | 20251124 |
| Nanjing Runsheng Petro | China national standards | MT | 606.94 | USD | 20251124 |
| Nanjing Runsheng Petro | China national standards | MT | 635.17 | USD | 20251124 |