| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 686.67 | USD | 20250819 |
| Shandong Xingpeng Chem | China national standards | MT | 742.72 | USD | 20250819 |
| Shandong Yeyang Chem | China national standards | MT | 770.75 | USD | 20250819 |
| Shandong Yeyang Chem | China national standards | MT | 756.74 | USD | 20250819 |
| Shandong Yeyang Chem | China national standards | MT | 784.76 | USD | 20250819 |
| Shandong Jinwen Chem | China national standards | MT | 784.76 | USD | 20250819 |
| Shandong Langchem | China national standards | MT | 847.83 | USD | 20250819 |
| Shandong Langchem | China national standards | MT | 861.84 | USD | 20250819 |
| Shandong Junfeng | China national standards | MT | 770.75 | USD | 20250819 |
| Shandong Junfeng | China national standards | MT | 784.76 | USD | 20250819 |