| Vendor | Spec | Unit | Price | Currency | Date |
| Jiangsu Zhonghu Chemical Co., Ltd. | China national standards | MT | 794.07 | USD | 20250926 |
| Jiangsu Zhonghu Chemical Co., Ltd. | China national standards | MT | 795.14 | USD | 20250925 |
| Jiangsu Zhonghu Chemical Co., Ltd. | China national standards | MT | 795.14 | USD | 20250925 |
| Jiangsu Zhonghu Chemical Co., Ltd. | China national standards | MT | 795.14 | USD | 20250924 |
| Jiangsu Zhonghu Chemical Co., Ltd. | China national standards | MT | 794.59 | USD | 20250922 |
| Jiangsu Zhonghu Chemical Co., Ltd. | China national standards | MT | 801.37 | USD | 20250919 |