| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chem | China national standards | MT | 1260.19 | USD | 20250812 |
| Shandong Langchem | China national standards | MT | 1236.61 | USD | 20250811 |
| Shandong Junfeng | China national standards | MT | 1120.37 | USD | 20250811 |
| Shandong Yeyang Chem | China national standards | MT | 1260.42 | USD | 20250811 |
| Shandong Langchem | China national standards | MT | 1237.01 | USD | 20250809 |
| Shandong Yeyang Chem | China national standards | MT | 1260.82 | USD | 20250809 |
| Shandong Yeyang Chem | China national standards | MT | 1260.82 | USD | 20250808 |
| Shandong Junfeng | China national standards | MT | 1120.73 | USD | 20250808 |
| Shandong Langchem | China national standards | MT | 1237.01 | USD | 20250808 |
| Shandong Junfeng | China national standards | MT | 1121.31 | USD | 20250807 |