| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 385.24 | USD | 20250820 |
| Shandong Langchem | China national standards | MT | 392.24 | USD | 20250820 |
| Yankuang Guotai Chem | China national standards | MT | 336.33 | USD | 20250819 |
| Chizhou Xinyu Chem | China national standards | MT | 406.4 | USD | 20250819 |
| Shandong Langchem | China national standards | MT | 392.38 | USD | 20250819 |
| Shandong Langchem | China national standards | MT | 385.38 | USD | 20250819 |
| Shandong Langchem | China national standards | MT | 364.35 | USD | 20250819 |
| Hebei Chuangde Tech | China national standards | MT | 385.38 | USD | 20250819 |
| Yankuang Guotai Chem | China national standards | MT | 336.5 | USD | 20250818 |
| Chizhou Xinyu Chem | China national standards | MT | 406.61 | USD | 20250818 |