| Vendor | Spec | Unit | Price | Currency | Date |
| Yankuang Guotai Chem | China national standards | MT | 336.21 | USD | 20250724 |
| Chizhou Xinyu Chem | China national standards | MT | 420.26 | USD | 20250724 |
| Shandong Langchem | China national standards | MT | 392.24 | USD | 20250724 |
| Shandong Langchem | China national standards | MT | 385.23 | USD | 20250724 |
| Shandong Langchem | China national standards | MT | 350.21 | USD | 20250724 |
| Shandong Langchem | China national standards | MT | 364.22 | USD | 20250724 |
| Hebei Chuangde Tech | China national standards | MT | 385.23 | USD | 20250724 |
| Chizhou Xinyu Chem | China national standards | MT | 420.09 | USD | 20250723 |
| Shandong Langchem | China national standards | MT | 364.07 | USD | 20250723 |
| Shandong Langchem | China national standards | MT | 350.07 | USD | 20250723 |