| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 886.26 | USD | 20250918 |
| Shandong Langchem | China national standards | MT | 886.99 | USD | 20250916 |
| Shandong Langchem | China national standards | MT | 886.62 | USD | 20250915 |
| Shandong Langchem | China national standards | MT | 887.22 | USD | 20250909 |
| Shandong Langchem | China national standards | MT | 886.96 | USD | 20250908 |
| Shandong Langchem | China national standards | MT | 886.52 | USD | 20250905 |
| Shandong Langchem | China national standards | MT | 886.21 | USD | 20250902 |
| Shandong Langchem | China national standards | MT | 886.43 | USD | 20250901 |
| Shandong Langchem | China national standards | MT | 886.95 | USD | 20250829 |
| Shandong Langchem | China national standards | MT | 886.54 | USD | 20250828 |