| Vendor | Spec | Unit | Price | Currency | Date |
| Zhangzhou Xiangcheng San'an Chemical Co., Ltd. | China national standards | MT | 140.74 | USD | 20251001 |
| Zhangzhou Xiangcheng San'an Chemical Co., Ltd. | China national standards | MT | 140.74 | USD | 20250930 |
| Zhangzhou Xiangcheng San'an Chemical Co., Ltd. | China national standards | MT | 168.65 | USD | 20250927 |