| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chem | China national standards | MT | 1192.24 | USD | 20251121 |
| Sinopec | China national standards | MT | 1128.75 | USD | 20251121 |
| Aite Zhejiang | China national standards | MT | 1156.97 | USD | 20251121 |
| Shandong Hongyang Chem | China national standards | MT | 1192.24 | USD | 20251121 |
| Shandong Laya Chem | China national standards | MT | 973.54 | USD | 20251121 |
| Lihuayi Shandong | China national standards | MT | 987.65 | USD | 20251121 |
| Beijing Yanshan Petro | China national standards | MT | 1220.46 | USD | 20251121 |
| Sinopec | China national standards | MT | 1227.51 | USD | 20251121 |
| Shandong Langchem | China national standards | MT | 1333.33 | USD | 20251121 |
| Shandong Yuhuang Chem | China national standards | MT | 1368.61 | USD | 20251121 |