| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1397.02 | USD | 20251113 |
| Shandong Langchem | China national standards | MT | 1397.65 | USD | 20251112 |
| Shandong Langchem | China national standards | MT | 1263.54 | USD | 20251112 |
| Shandong Langchem | China national standards | MT | 1256.48 | USD | 20251112 |
| Shandong Langchem | China national standards | MT | 1214.12 | USD | 20251112 |
| Shandong Langchem | China national standards | MT | 1255.89 | USD | 20251111 |
| Shandong Langchem | China national standards | MT | 1262.95 | USD | 20251111 |
| Shandong Langchem | China national standards | MT | 1397.0 | USD | 20251111 |
| Shandong Langchem | China national standards | MT | 1213.56 | USD | 20251111 |
| Shandong Langchem | China national standards | MT | 1397.2 | USD | 20251110 |