| Vendor | Spec | Unit | Price | Currency | Date |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 546.36 | USD | 20250808 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 546.64 | USD | 20250807 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 420.12 | USD | 20250806 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 420.37 | USD | 20250805 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 420.2 | USD | 20250804 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 419.6 | USD | 20250801 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 419.62 | USD | 20250731 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 419.93 | USD | 20250730 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 419.52 | USD | 20250729 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 419.77 | USD | 20250728 |