| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chem | China national standards | MT | 1193.86 | USD | 20251127 |
| Shandong Langchem | China national standards | MT | 1299.82 | USD | 20251127 |
| Sinopec | China national standards | MT | 894.33 | USD | 20251127 |
| CNPC | China national standards | MT | 1215.05 | USD | 20251127 |
| Shandong Yuhuang Chem | China national standards | MT | 873.14 | USD | 20251127 |
| Shandong Junfeng | China national standards | MT | 988.99 | USD | 20251127 |
| Sinopec | China national standards | MT | 1229.18 | USD | 20251127 |
| Beijing Yanshan Petro | China national standards | MT | 894.33 | USD | 20251127 |
| Sinopec | China national standards | MT | 890.09 | USD | 20251127 |
| Shandong Shuojia Chem | China national standards | MT | 899.98 | USD | 20251127 |