| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chem | China national standards | MT | 1270.18 | USD | 20251110 |
| Shandong Langchem | China national standards | MT | 1246.19 | USD | 20251110 |
| Shandong Mingyu | China national standards | MT | 1129.05 | USD | 20251110 |
| Shandong Yeyang Chem | China national standards | MT | 1270.54 | USD | 20251107 |
| Shandong Langchem | China national standards | MT | 1246.54 | USD | 20251107 |
| Shandong Aite Chem | China national standards | MT | 1157.6 | USD | 20251107 |
| Shandong Junfeng | China national standards | MT | 1129.37 | USD | 20251107 |
| Shandong Mingyu | China national standards | MT | 1128.91 | USD | 20251106 |
| Shandong Aite Chem | China national standards | MT | 1157.13 | USD | 20251106 |
| Shandong Langchem | China national standards | MT | 1246.03 | USD | 20251106 |