| Vendor | Spec | Unit | Price | Currency | Date |
| Lihuayi Shandong | China national standards | MT | 867.84 | USD | 20251111 |
| Shandong Jinwen Chem | China national standards | MT | 1199.45 | USD | 20251111 |
| Shandong Langchem | China national standards | MT | 1333.5 | USD | 20251111 |
| Sinopec | China national standards | MT | 1248.84 | USD | 20251111 |
| Lihuayi Shandong | China national standards | MT | 865.01 | USD | 20251111 |
| Lihuayi Shandong | China national standards | MT | 1246.01 | USD | 20251111 |
| Sinopec | China national standards | MT | 865.01 | USD | 20251111 |
| Beijing Yanshan Petro | China national standards | MT | 865.01 | USD | 20251111 |
| Sinopec | China national standards | MT | 889.0 | USD | 20251111 |
| Lihuayi Shandong | China national standards | MT | 867.84 | USD | 20251111 |