| Vendor | Spec | Unit | Price | Currency | Date |
| Hebei Chuangde Tech | China national standards | MT | 387.04 | USD | 20250904 |
| Shandong Langchem | China national standards | MT | 365.93 | USD | 20250904 |
| Shandong Langchem | China national standards | MT | 387.04 | USD | 20250904 |
| Shandong Langchem | China national standards | MT | 394.08 | USD | 20250904 |
| Yankuang Guotai Chem | China national standards | MT | 337.51 | USD | 20250903 |
| Chizhou Xinyu Chem | China national standards | MT | 379.7 | USD | 20250903 |
| Shandong Langchem | China national standards | MT | 393.77 | USD | 20250903 |
| Shandong Langchem | China national standards | MT | 386.74 | USD | 20250903 |
| Shandong Langchem | China national standards | MT | 365.64 | USD | 20250903 |
| Hebei Chuangde Tech | China national standards | MT | 386.74 | USD | 20250903 |