| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1209.75 | USD | 20250929 |
| Shandong Langchem | China national standards | MT | 1251.95 | USD | 20250929 |
| Shandong Langchem | China national standards | MT | 1258.99 | USD | 20250929 |
| Shandong Langchem | China national standards | MT | 1392.62 | USD | 20250929 |
| Shandong Langchem | China national standards | MT | 1391.39 | USD | 20250928 |
| Shandong Langchem | China national standards | MT | 1250.84 | USD | 20250928 |
| Shandong Langchem | China national standards | MT | 1257.87 | USD | 20250928 |
| Shandong Langchem | China national standards | MT | 1208.68 | USD | 20250928 |
| Shandong Langchem | China national standards | MT | 1209.09 | USD | 20250919 |
| Shandong Langchem | China national standards | MT | 1258.29 | USD | 20250919 |