| Vendor | Spec | Unit | Price | Currency | Date |
| Heze Zhuohang | China national standards | MT | 1217.24 | USD | 20260602 |
| Heze Zhuohang | China national standards | MT | 1246.94 | 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 | |
| Lihuayi Weiyuan Chem | China national standards | MT | USD | 20260515 | |
| Lihuayi Weiyuan Chem | China national standards | MT | USD | 20260512 |