| Vendor | Spec | Unit | Price | Currency | Date |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 379.94 | USD | 20250905 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 380.0 | USD | 20250904 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 379.7 | USD | 20250903 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 386.84 | USD | 20250902 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 365.83 | USD | 20250901 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 366.04 | USD | 20250829 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 365.87 | USD | 20250828 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 351.58 | USD | 20250827 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 351.18 | USD | 20250826 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 351.32 | USD | 20250825 |