| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chem | China national standards | MT | 1198.4 | USD | 20251024 |
| Shandong Yuhuang Chem | China national standards | MT | 1290.04 | USD | 20251024 |
| Shandong Langchem | China national standards | MT | 1332.34 | USD | 20251024 |
| Shandong Langchem | China national standards | MT | 1297.09 | USD | 20251024 |
| Beijing Yanshan Petro | China national standards | MT | 1156.1 | USD | 20251024 |
| Shandong Junfeng | China national standards | MT | 986.92 | USD | 20251024 |
| Lihuayi Shandong | China national standards | MT | 986.92 | USD | 20251024 |
| Sinopec | China national standards | MT | 1127.9 | USD | 20251024 |
| Shandong Hanyue Chem | China national standards | MT | 944.62 | USD | 20251024 |
| Shandong Hanyue Chem | China national standards | MT | 944.62 | USD | 20251024 |