| Vendor | Spec | Unit | Price | Currency | Date |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 350.53 | USD | 20250822 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 350.7 | USD | 20250821 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 406.25 | USD | 20250820 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 406.4 | USD | 20250819 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 406.61 | USD | 20250818 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 406.33 | USD | 20250817 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 406.33 | USD | 20250815 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 420.54 | USD | 20250814 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 420.46 | USD | 20250813 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 420.14 | USD | 20250811 |