| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1243.52 | USD | 20250909 |
| Shandong Junfeng | China national standards | MT | 1126.3 | USD | 20250908 |
| Shandong Yeyang Chem | China national standards | MT | 1267.09 | USD | 20250908 |
| Shandong Langchem | China national standards | MT | 1243.15 | USD | 20250908 |
| Shandong Langchem | China national standards | MT | 1242.54 | USD | 20250906 |
| Shandong Yeyang Chem | China national standards | MT | 1266.46 | USD | 20250906 |
| Shandong Yeyang Chem | China national standards | MT | 1266.46 | USD | 20250905 |
| Shandong Langchem | China national standards | MT | 1242.54 | USD | 20250905 |
| Shandong Yeyang Chem | China national standards | MT | 1266.68 | USD | 20250904 |
| Shandong Langchem | China national standards | MT | 1242.75 | USD | 20250904 |