| Vendor | Spec | Unit | Price | Currency | Date |
| Suzhou Zhaohua Chemical Co., Ltd. | 含量96% | MT | 353.13 | USD | 20251126 |
| Suzhou Zhaohua Chemical Co., Ltd. | 含量96% | MT | 353.03 | USD | 20251117 |
| Suzhou Zhaohua Chemical Co., Ltd. | 含量96% | MT | 352.93 | USD | 20251109 |
| Suzhou Zhaohua Chemical Co., Ltd. | 含量96% | MT | 352.89 | USD | 20251029 |
| Suzhou Zhaohua Chemical Co., Ltd. | 含量96% | MT | 352.47 | USD | 20251024 |
| Suzhou Zhaohua Chemical Co., Ltd. | China national standards | MT | 351.69 | USD | 20250918 |
| Suzhou Zhaohua Chemical Co., Ltd. | China national standards | MT | 352.02 | USD | 20250913 |
| Suzhou Zhaohua Chemical Co., Ltd. | China national standards | MT | 351.76 | USD | 20250901 |
| Suzhou Zhaohua Chemical Co., Ltd. | China national standards | MT | 351.32 | USD | 20250825 |
| Suzhou Zhaohua Chemical Co., Ltd. | China national standards | MT | 350.22 | USD | 20250820 |