| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1295.87 | USD | 20251015 |
| Shandong Langchem | China national standards | MT | 1295.39 | USD | 20251014 |
| Shandong Langchem | China national standards | MT | 1330.59 | USD | 20251014 |
| Shandong Langchem | China national standards | MT | 1330.85 | USD | 20251013 |
| Shandong Langchem | China national standards | MT | 1295.65 | USD | 20251013 |
| Shandong Langchem | China national standards | MT | 1294.9 | USD | 20251011 |
| Shandong Langchem | China national standards | MT | 1330.09 | USD | 20251011 |
| Shandong Langchem | China national standards | MT | 1330.09 | USD | 20251010 |
| Shandong Langchem | China national standards | MT | 1294.9 | USD | 20251010 |
| Shandong Langchem | China national standards | MT | 1293.92 | USD | 20251009 |