| Vendor | Spec | Unit | Price | Currency | Date |
| Zibo Lishuo Chem | China national standards | MT | 846.2 | USD | 20251120 |
| Shandong Yeyang Chem | China national standards | MT | 789.79 | USD | 20251120 |
| Sinopec | China national standards | MT | 789.79 | USD | 20251120 |
| Sinopec | China national standards | MT | 888.51 | USD | 20251120 |
| Shandong Zhiheng | China national standards | MT | 803.89 | USD | 20251120 |
| Shandong Aite Chem | China national standards | MT | 888.51 | USD | 20251120 |
| Shandong Aite Chem | China national standards | MT | 944.93 | USD | 20251120 |
| Shandong Aite Chem | China national standards | MT | 888.51 | USD | 20251120 |
| Shandong Xima | China national standards | MT | 789.79 | USD | 20251120 |
| Wanhua Yantai | China national standards | MT | 895.56 | USD | 20251120 |