| Vendor | Spec | Unit | Price | Currency | Date |
| Jiangsu Youlixin Chemical Co., Ltd. | China national standards | MT | 1015.26 | USD | 20251023 |
| Jiangsu Youlixin Chemical Co., Ltd. | China national standards | MT | 1014.74 | USD | 20251022 |
| Jiangsu Youlixin Chemical Co., Ltd. | China national standards | MT | 1028.56 | USD | 20251020 |
| Jiangsu Youlixin Chemical Co., Ltd. | China national standards | MT | 1027.24 | USD | 20250905 |