| Vendor | Spec | Unit | Price | Currency | Date |
| Beijing Yanshan Petro | China national standards | MT | 1174.21 | USD | 20251211 |
| Shandong Junfeng | China national standards | MT | 1061.03 | USD | 20251211 |
| Shandong Junfeng | China national standards | MT | 990.3 | USD | 20251211 |
| Shandong Junfeng | China national standards | MT | 919.56 | USD | 20251211 |
| Shanghai Guoke | China national standards | MT | 1284.55 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 1103.47 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 1117.62 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 1117.62 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 1110.55 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 1110.55 | USD | 20251211 |