| Vendor | Spec | Unit | Price | Currency | Date |
| Heze Jiangyuan Chem | China national standards | MT | 87.17 | USD | 20250919 |
| Zouping Tianlu Chem | China national standards | MT | 98.41 | USD | 20250919 |
| Zhangzhou Sanan Chem | China national standards | MT | 91.44 | USD | 20250918 |
| Heze Jiangyuan Chem | China national standards | MT | 87.22 | USD | 20250918 |
| Zouping Tianlu Chem | China national standards | MT | 98.47 | USD | 20250918 |
| Changzhou Qinghong Chem | China national standards | MT | 104.1 | USD | 20250918 |
| Gansu Yongsheng | China national standards | MT | 56.19 | USD | 20250826 |
| Gansu Yongsheng | China national standards | MT | 56.19 | USD | 20250826 |
| Gansu Yongsheng | China national standards | MT | 56.05 | USD | 20250815 |
| Gansu Yongsheng | China national standards | MT | 56.05 | USD | 20250815 |