| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 990.3 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 1145.91 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 1061.03 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 1145.91 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 990.3 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 1061.03 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 989.36 | USD | 20251210 |
| Shandong Langchem | China national standards | MT | 1060.03 | USD | 20251210 |
| Shandong Langchem | China national standards | MT | 1144.83 | USD | 20251210 |
| Shandong Langchem | China national standards | MT | 989.08 | USD | 20251209 |