| Vendor | Spec | Unit | Price | Currency | Date |
| Tianjin Shengtong | China national standards | MT | 351.83 | USD | 20250924 |
| Hebei Chuangde Tech | China national standards | MT | 387.01 | USD | 20250924 |
| Shandong Langchem | China national standards | MT | 387.01 | USD | 20250924 |
| Shandong Langchem | China national standards | MT | 394.05 | USD | 20250924 |
| Shandong Zhiheng | China national standards | MT | 365.9 | USD | 20250924 |
| Shanghai Huayi | China national standards | MT | 422.2 | USD | 20250923 |
| Hualu Holdings | China national standards | MT | 415.16 | USD | 20250923 |
| Shandong Jiaen Chem | China national standards | MT | 401.09 | USD | 20250923 |
| Shandong Hualu | China national standards | MT | 408.12 | USD | 20250923 |
| Hebei Pengfa Chem | China national standards | MT | 329.31 | USD | 20250923 |