| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 507.27 | USD | 20251016 |
| Sinopec | China national standards | MT | 612.95 | USD | 20251016 |
| Sinopec | China national standards | MT | 634.09 | USD | 20251016 |
| Beijing Yanshan Petro | China national standards | MT | 634.09 | USD | 20251016 |
| Shandong Langchem | China national standards | MT | 627.04 | USD | 20251016 |
| CNPC | China national standards | MT | 635.5 | USD | 20251016 |
| Shandong Fusheng | China national standards | MT | 563.63 | USD | 20251016 |
| Shandong Fusheng | China national standards | MT | 704.54 | USD | 20251016 |
| Shandong Zhiheng | China national standards | MT | 634.09 | USD | 20251016 |
| Shandong Hongyang Chem | China national standards | MT | 669.32 | USD | 20251016 |