| Vendor | Spec | Unit | Price | Currency | Date |
| Jiangsu Youlixin Chemical Co., Ltd. | China national standards | MT | 1017.61 | USD | 20251203 |
| Jiangsu Youlixin Chemical Co., Ltd. | China national standards | MT | 1017.54 | USD | 20251201 |
| Jiangsu Youlixin Chemical Co., Ltd. | China national standards | MT | 1017.11 | USD | 20251128 |
| Jiangsu Youlixin Chemical Co., Ltd. | China national standards | MT | 1016.15 | USD | 20251110 |
| 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 |