| Vendor | Spec | Unit | Price | Currency | Date |
| Hebei Pengfa Chem | China national standards | MT | 341.98 | USD | 20250924 |
| Shandong Yaowang Chem | China national standards | MT | 358.87 | USD | 20250924 |
| Shandong Shuojia Chem | China national standards | MT | 365.9 | USD | 20250924 |
| Shandong Hualu | China national standards | MT | 365.9 | USD | 20250924 |
| Yankuang Guotai Chem | China national standards | MT | 365.9 | USD | 20250924 |
| Shandong Shuojia Chem | China national standards | MT | 365.9 | USD | 20250924 |
| Yankuang Guotai Chem | China national standards | MT | 337.76 | USD | 20250924 |
| Shandong Shuojia Chem | China national standards | MT | 337.76 | USD | 20250924 |
| Shandong Shuojia Chem | China national standards | MT | 337.76 | USD | 20250924 |
| Shandong Hualu | China national standards | MT | 295.54 | USD | 20250924 |