| Vendor | Spec | Unit | Price | Currency | Date |
| Jiangsu Youlixin Chem | China national standards | MT | 882.91 | USD | 20251128 |
| Jiangsu Youlixin Chem | China national standards | MT | 881.3 | USD | 20251023 |
| Jiangsu Youlixin Chem | China national standards | MT | 880.85 | USD | 20251022 |
| Jiangsu Youlixin Chem | China national standards | MT | 880.62 | USD | 20251020 |