| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1257.9 | USD | 20251210 |
| Shandong Langchem | China national standards | MT | 1398.84 | USD | 20251209 |
| Shandong Langchem | China national standards | MT | 1264.61 | USD | 20251209 |
| Shandong Langchem | China national standards | MT | 1257.54 | USD | 20251209 |
| Shandong Langchem | China national standards | MT | 1215.15 | USD | 20251209 |
| Shandong Langchem | China national standards | MT | 1399.02 | USD | 20251208 |
| Shandong Langchem | China national standards | MT | 1215.31 | USD | 20251208 |
| Shandong Langchem | China national standards | MT | 1264.77 | USD | 20251208 |
| Shandong Langchem | China national standards | MT | 1257.7 | USD | 20251208 |
| Shandong Langchem | China national standards | MT | 1399.31 | USD | 20251205 |