| Vendor | Spec | Unit | Price | Currency | Date |
| Lihuayi Shandong | China national standards | MT | 1326.33 | USD | 20251119 |
| Sinopec | China national standards | MT | 903.04 | USD | 20251119 |
| Sinopec | China national standards | MT | 1227.57 | USD | 20251119 |
| Shandong Qiangsen Chem | China national standards | MT | 1044.14 | USD | 20251119 |
| Sinopec | China national standards | MT | 1227.57 | USD | 20251119 |
| Shandong Laya Chem | China national standards | MT | 973.59 | USD | 20251119 |
| Shandong Langchem | China national standards | MT | 1298.11 | USD | 20251119 |
| Shandong Langchem | China national standards | MT | 1333.39 | USD | 20251119 |
| Lihuayi Shandong | China national standards | MT | 899.01 | USD | 20251118 |
| Beijing Yanshan Petro | China national standards | MT | 899.01 | USD | 20251118 |