| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1213.58 | USD | 20251106 |
| Shandong Langchem | China national standards | MT | 1212.96 | USD | 20251105 |
| Shandong Langchem | China national standards | MT | 1262.32 | USD | 20251105 |
| Shandong Langchem | China national standards | MT | 1255.27 | USD | 20251105 |
| Shandong Langchem | China national standards | MT | 1396.31 | USD | 20251105 |
| Shandong Langchem | China national standards | MT | 1396.63 | USD | 20251104 |
| Shandong Langchem | China national standards | MT | 1255.55 | USD | 20251104 |
| Shandong Langchem | China national standards | MT | 1262.61 | USD | 20251104 |
| Shandong Langchem | China national standards | MT | 1213.23 | USD | 20251104 |
| Shandong Langchem | China national standards | MT | 1255.87 | USD | 20251103 |