| Vendor | Spec | Unit | Price | Currency | Date |
| Weifang Yixin Chem | China national standards | MT | 1775.8 | USD | 20251022 |
| Weifang Yixin Chem | China national standards | MT | 1776.4 | USD | 20251021 |
| Weifang Yixin Chem | China national standards | MT | 1831.68 | USD | 20251020 |
| Weifang Yixin Chem | China national standards | MT | 1832.3 | USD | 20251017 |
| Weifang Yixin Chem | China national standards | MT | 1831.81 | USD | 20251016 |
| Weifang Yixin Chem | China national standards | MT | 1831.11 | USD | 20251015 |
| Weifang Yixin Chem | China national standards | MT | 1830.44 | USD | 20251014 |
| Weifang Yixin Chem | China national standards | MT | 1837.85 | USD | 20251013 |
| Weifang Yixin Chem | China national standards | MT | 1836.79 | USD | 20251010 |
| Weifang Yixin Chem | China national standards | MT | 1835.39 | USD | 20251009 |