| Vendor | Spec | Unit | Price | Currency | Date |
| Jiangsu Youlixin Chemical Co., Ltd. | China national standards | MT | 1125.75 | USD | 20250905 |
| Jiangsu Youlixin Chemical Co., Ltd. | China national standards | MT | 1125.62 | USD | 20250901 |
| Jiangsu Youlixin Chemical Co., Ltd. | China national standards | MT | 1097.48 | USD | 20250901 |
| Jiangsu Youlixin Chemical Co., Ltd. | China national standards | MT | 1266.32 | USD | 20250901 |
| Jiangsu Youlixin Chemical Co., Ltd. | China national standards | MT | 1093.2 | USD | 20250813 |
| Jiangsu Youlixin Chemical Co., Ltd. | China national standards | MT | 1121.23 | USD | 20250813 |
| Jiangsu Youlixin Chemical Co., Ltd. | China national standards | MT | 1261.39 | USD | 20250813 |