| Vendor | Spec | Unit | Price | Currency | Date |
| Beijing Yanshan Petro | China national standards | MT | 1160.06 | USD | 20251211 |
| Beijing Yanshan Petro | China national standards | MT | 1223.72 | USD | 20251211 |
| Shandong Yeyang Chem | China national standards | MT | 1202.5 | USD | 20251211 |
| Shandong Yuhuang Chem | China national standards | MT | 1294.46 | USD | 20251211 |
| Shandong Yuhuang Chem | China national standards | MT | 1294.46 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 1336.9 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 1336.9 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 1301.53 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 1301.53 | USD | 20251211 |
| Shandong Jinwen Chem | China national standards | MT | 1202.5 | USD | 20251211 |