| Vendor | Spec | Unit | Price | Currency | Date |
| Heze Zhuohang | China national standards | MT | 1247.25 | USD | 20260611 |
| Heze Zhuohang | China national standards | MT | 1232.94 | USD | 20260610 |
| Heze Zhuohang | China national standards | MT | USD | 20260602 | |
| Heze Zhuohang | China national standards | MT | USD | 20260601 | |
| Lihuayi Weiyuan Chem | China national standards | MT | USD | 20260525 | |
| Lihuayi Weiyuan Chem | China national standards | MT | USD | 20260522 | |
| Lihuayi Weiyuan Chem | China national standards | MT | USD | 20260521 | |
| Heze Zhuohang | China national standards | MT | USD | 20260521 | |
| Lihuayi Weiyuan Chem | China national standards | MT | USD | 20260519 | |
| Lihuayi Weiyuan Chem | China national standards | MT | USD | 20260518 |