| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1257.97 | USD | 20251205 |
| Shandong Langchem | China national standards | MT | 1399.31 | USD | 20251205 |
| Shandong Langchem | China national standards | MT | 1265.04 | USD | 20251205 |
| Shandong Langchem | China national standards | MT | 1215.84 | USD | 20251204 |
| Shandong Langchem | China national standards | MT | 1399.63 | USD | 20251204 |
| Shandong Langchem | China national standards | MT | 1215.48 | USD | 20251203 |
| Shandong Langchem | China national standards | MT | 1264.95 | USD | 20251203 |
| Shandong Langchem | China national standards | MT | 1257.88 | USD | 20251203 |
| Shandong Langchem | China national standards | MT | 1399.21 | USD | 20251203 |
| Shandong Langchem | China national standards | MT | 1264.23 | USD | 20251202 |