| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1292.35 | USD | 20250826 |
| Shandong Langchem | China national standards | MT | 1292.84 | USD | 20250825 |
| Shandong Langchem | China national standards | MT | 1327.97 | USD | 20250825 |
| Shandong Langchem | China national standards | MT | 1325.0 | USD | 20250823 |
| Shandong Langchem | China national standards | MT | 1289.94 | USD | 20250823 |
| Shandong Langchem | China national standards | MT | 1289.94 | USD | 20250822 |
| Shandong Langchem | China national standards | MT | 1325.0 | USD | 20250822 |
| Shandong Langchem | China national standards | MT | 1325.63 | USD | 20250821 |
| Shandong Langchem | China national standards | MT | 1290.56 | USD | 20250821 |
| Shandong Langchem | China national standards | MT | 1288.8 | USD | 20250820 |