| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1214.76 | USD | 20251126 |
| Shandong Langchem | China national standards | MT | 1397.79 | USD | 20251125 |
| Shandong Langchem | China national standards | MT | 1263.66 | USD | 20251125 |
| Shandong Langchem | China national standards | MT | 1214.24 | USD | 20251125 |
| Shandong Langchem | China national standards | MT | 1256.6 | USD | 20251125 |
| Shandong Langchem | China national standards | MT | 1397.38 | USD | 20251124 |
| Shandong Langchem | China national standards | MT | 1213.88 | USD | 20251124 |
| Shandong Langchem | China national standards | MT | 1256.23 | USD | 20251124 |
| Shandong Langchem | China national standards | MT | 1263.29 | USD | 20251124 |
| Shandong Langchem | China national standards | MT | 1255.73 | USD | 20251121 |