| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1098.48 | USD | 20251013 |
| Shandong Langchem | China national standards | MT | 1112.57 | USD | 20251013 |
| Shandong Langchem | China national standards | MT | 1112.57 | USD | 20251013 |
| Shandong Langchem | China national standards | MT | 1105.52 | USD | 20251013 |
| Shandong Langchem | China national standards | MT | 1126.65 | USD | 20251013 |
| Beijing Yanshan Petro | China national standards | MT | 1112.57 | USD | 20251013 |
| Shandong Zhiheng | China national standards | MT | 1112.57 | USD | 20251013 |
| Shandong Hongyang Chem | China national standards | MT | 1013.98 | USD | 20251013 |
| Shandong Jiaen Chem | China national standards | MT | 1090.81 | USD | 20251012 |
| Beijing Yanshan Petro | China national standards | MT | 1196.37 | USD | 20251012 |