| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1058.13 | USD | 20251031 |
| Shandong Langchem | China national standards | MT | 1142.78 | USD | 20251031 |
| Shandong Langchem | China national standards | MT | 1143.03 | USD | 20251030 |
| Shandong Langchem | China national standards | MT | 1058.37 | USD | 20251030 |
| Shandong Langchem | China national standards | MT | 987.81 | USD | 20251030 |
| Shandong Langchem | China national standards | MT | 988.1 | USD | 20251029 |
| Shandong Langchem | China national standards | MT | 1058.68 | USD | 20251029 |
| Shandong Langchem | China national standards | MT | 1143.37 | USD | 20251029 |
| Shandong Langchem | China national standards | MT | 1143.16 | USD | 20251028 |
| Shandong Langchem | China national standards | MT | 1058.48 | USD | 20251028 |