| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1104.78 | USD | 20250930 |
| Shandong Langchem | China national standards | MT | 1125.89 | USD | 20250930 |
| Shandong Langchem | China national standards | MT | 1125.35 | USD | 20250929 |
| Shandong Langchem | China national standards | MT | 1104.25 | USD | 20250929 |
| Shandong Langchem | China national standards | MT | 1111.28 | USD | 20250929 |
| Shandong Langchem | China national standards | MT | 1111.28 | USD | 20250929 |
| Shandong Langchem | China national standards | MT | 1097.22 | USD | 20250929 |
| Shandong Langchem | China national standards | MT | 1110.3 | USD | 20250928 |
| Shandong Langchem | China national standards | MT | 1110.3 | USD | 20250928 |
| Shandong Langchem | China national standards | MT | 1103.27 | USD | 20250928 |