| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1298.26 | USD | 20251030 |
| Shandong Langchem | China national standards | MT | 1333.54 | USD | 20251030 |
| Shandong Langchem | China national standards | MT | 1298.65 | USD | 20251029 |
| Shandong Langchem | China national standards | MT | 1333.94 | USD | 20251029 |
| Shandong Langchem | China national standards | MT | 1333.69 | USD | 20251028 |
| Shandong Langchem | China national standards | MT | 1298.41 | USD | 20251028 |
| Shandong Langchem | China national standards | MT | 1333.22 | USD | 20251027 |
| Shandong Langchem | China national standards | MT | 1297.09 | USD | 20251024 |
| Shandong Langchem | China national standards | MT | 1332.34 | USD | 20251024 |
| Shandong Langchem | China national standards | MT | 1297.27 | USD | 20251023 |