| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1140.73 | USD | 20251013 |
| Shandong Langchem | China national standards | MT | 1140.07 | USD | 20251011 |
| Shandong Langchem | China national standards | MT | 1055.62 | USD | 20251011 |
| Shandong Langchem | China national standards | MT | 985.25 | USD | 20251011 |
| Shandong Langchem | China national standards | MT | 985.25 | USD | 20251010 |
| Shandong Langchem | China national standards | MT | 1055.62 | USD | 20251010 |
| Shandong Langchem | China national standards | MT | 1140.07 | USD | 20251010 |
| Shandong Langchem | China national standards | MT | 1139.21 | USD | 20251009 |
| Shandong Langchem | China national standards | MT | 1054.82 | USD | 20251009 |
| Shandong Langchem | China national standards | MT | 984.5 | USD | 20251009 |