| Vendor | Spec | Unit | Price | Currency | Date |
| Beijing Yanshan Petro | China national standards | MT | 1060.33 | USD | 20251204 |
| Shandong Langchem | China national standards | MT | 1131.01 | USD | 20251204 |
| Shandong Xima | China national standards | MT | 890.67 | USD | 20251204 |
| Shandong Aite Chem | China national standards | MT | 1102.74 | USD | 20251204 |
| Lihuayi Weiyuan Chem | China national standards | MT | 848.26 | USD | 20251204 |
| Shandong Qiangsen Chem | China national standards | MT | 933.09 | USD | 20251204 |
| Beijing Yanshan Petro | China national standards | MT | 1060.33 | USD | 20251204 |
| Shandong Junfeng | China national standards | MT | 918.95 | USD | 20251204 |
| Sinopec | China national standards | MT | 1032.05 | USD | 20251204 |
| Shandong Langchem | China national standards | MT | 1102.74 | USD | 20251204 |