| Vendor | Spec | Unit | Price | Currency | Date |
| Beijing Yanshan Petro | China national standards | MT | 1169.1 | USD | 20251015 |
| Lihuayi Weiyuan Chem | China national standards | MT | 1155.01 | USD | 20251015 |
| Shandong Langchem | China national standards | MT | 1098.67 | USD | 20251015 |
| Shandong Langchem | China national standards | MT | 1112.75 | USD | 20251015 |
| Shandong Langchem | China national standards | MT | 1112.75 | USD | 20251015 |
| Shandong Langchem | China national standards | MT | 1105.71 | USD | 20251015 |
| Shandong Langchem | China national standards | MT | 1126.84 | USD | 20251015 |
| Beijing Yanshan Petro | China national standards | MT | 1112.75 | USD | 20251015 |
| Shandong Zhiheng | China national standards | MT | 1112.75 | USD | 20251015 |
| Shandong Hongyang Chem | China national standards | MT | 1014.16 | USD | 20251015 |