| Vendor | Spec | Unit | Price | Currency | Date |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 409.28 | USD | 20251028 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 409.14 | USD | 20251027 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 408.87 | USD | 20251024 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 408.92 | USD | 20251023 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 408.72 | USD | 20251022 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 408.85 | USD | 20251021 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 408.61 | USD | 20251020 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 408.48 | USD | 20251015 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 408.33 | USD | 20251014 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 408.41 | USD | 20251013 |