| Vendor | Spec | Unit | Price | Currency | Date |
| Hebei Chuangde Tech | China national standards | MT | 387.18 | USD | 20250916 |
| Shandong Langchem | China national standards | MT | 351.98 | USD | 20250916 |
| Shandong Langchem | China national standards | MT | 366.06 | USD | 20250916 |
| Yankuang Guotai Chem | China national standards | MT | 337.76 | USD | 20250915 |
| Chizhou Xinyu Chem | China national standards | MT | 408.13 | USD | 20250915 |
| Hebei Chuangde Tech | China national standards | MT | 387.02 | USD | 20250915 |
| Shandong Langchem | China national standards | MT | 365.91 | USD | 20250915 |
| Shandong Langchem | China national standards | MT | 387.02 | USD | 20250915 |
| Shandong Langchem | China national standards | MT | 394.06 | USD | 20250915 |
| Jiangsu SOPO | China national standards | MT | 351.84 | USD | 20250915 |