| Vendor | Spec | Unit | Price | Currency | Date |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 420.06 | USD | 20250727 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 420.06 | USD | 20250725 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 420.26 | USD | 20250724 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 420.09 | USD | 20250723 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 419.82 | USD | 20250722 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 405.47 | USD | 20250721 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 405.61 | USD | 20250719 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 405.61 | USD | 20250718 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 405.82 | USD | 20250717 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 405.45 | USD | 20250716 |