| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1181.62 | USD | 20250929 |
| Shandong Langchem | China national standards | MT | 1170.36 | USD | 20250929 |
| Shandong Langchem | China national standards | MT | 1167.55 | USD | 20250929 |
| Shandong Langchem | China national standards | MT | 1166.52 | USD | 20250928 |
| Shandong Langchem | China national standards | MT | 1180.57 | USD | 20250928 |
| Shandong Langchem | China national standards | MT | 1169.33 | USD | 20250928 |
| Shandong Langchem | China national standards | MT | 1169.33 | USD | 20250928 |
| Shandong Langchem | China national standards | MT | 1169.33 | USD | 20250928 |
| Shandong Langchem | China national standards | MT | 1180.57 | USD | 20250926 |
| Shandong Langchem | China national standards | MT | 1169.33 | USD | 20250926 |