| Vendor | Spec | Unit | Price | Currency | Date |
| Zhangzhou Xiangcheng San'an Chemical Co., Ltd. | China national standards | MT | 253.06 | USD | 20250920 |
| Zhangzhou Xiangcheng San'an Chemical Co., Ltd. | China national standards | MT | 253.06 | USD | 20250919 |
| Zhangzhou Xiangcheng San'an Chemical Co., Ltd. | China national standards | MT | 253.22 | USD | 20250918 |