| Vendor | Spec | Unit | Price | Currency | Date |
| Liaocheng Xinli | China national standards | MT | 790.44 | USD | 20251124 |
| Shandong Mingyu | China national standards | MT | 861.01 | USD | 20251124 |
| Shandong Aite Chem | China national standards | MT | 889.24 | USD | 20251124 |
| Shandong Yaoming Chem | China national standards | MT | 790.44 | USD | 20251124 |
| Wanhua Yantai | China national standards | MT | 790.44 | USD | 20251124 |
| Shandong Yeyang Chem | China national standards | MT | 790.44 | USD | 20251124 |
| Sinopec | China national standards | MT | 790.12 | USD | 20251123 |
| Shandong Yihe Chem | China national standards | MT | 790.12 | USD | 20251123 |
| Wanhua Chem | China national standards | MT | 1044.09 | USD | 20251123 |
| Sinopec | China national standards | MT | 790.12 | USD | 20251123 |