| Vendor | Spec | Unit | Price | Currency | Date |
| Changzhou Yongxiang Chemical Co., Ltd. | China national standards | MT | 95.65 | USD | 20250929 |
| Changzhou Yongxiang Chemical Co., Ltd. | China national standards | MT | 95.57 | USD | 20250928 |
| Changzhou Yongxiang Chemical Co., Ltd. | China national standards | MT | 95.57 | USD | 20250927 |