| Vendor | Spec | Unit | Price | Currency | Date |
| Zhangzhou Xiangcheng San'an Chemical Co., Ltd. | China national standards | MT | 421.63 | USD | 20250928 |
| Zhangzhou Xiangcheng San'an Chemical Co., Ltd. | China national standards | MT | 421.63 | USD | 20250927 |
| Zhangzhou Xiangcheng San'an Chemical Co., Ltd. | China national standards | MT | 421.63 | USD | 20250926 |
| Zhangzhou Xiangcheng San'an Chemical Co., Ltd. | China national standards | MT | 422.2 | USD | 20250923 |
| Zhangzhou Xiangcheng San'an Chemical Co., Ltd. | China national standards | MT | 421.77 | USD | 20250921 |
| Zhangzhou Xiangcheng San'an Chemical Co., Ltd. | China national standards | MT | 421.77 | USD | 20250920 |
| Zhangzhou Xiangcheng San'an Chemical Co., Ltd. | China national standards | MT | 421.77 | USD | 20250919 |
| Zhangzhou Xiangcheng San'an Chemical Co., Ltd. | China national standards | MT | 422.03 | USD | 20250918 |