| Vendor | Spec | Unit | Price | Currency | Date |
| Heze Zhuohang | China national standards | MT | 518.85 | USD | 20251230 |
| Heze Zhuohang | China national standards | MT | 518.85 | USD | 20251230 |
| Heze Zhuohang | China national standards | MT | 526.08 | USD | 20251229 |
| Shandong Hualu | China national standards | MT | 611.39 | USD | 20251229 |
| Heze Zhuohang | China national standards | MT | 526.08 | USD | 20251229 |
| Shandong Hualu | China national standards | MT | 611.39 | USD | 20251229 |
| Lihuayi Weiyuan Chem | China national standards | MT | 525.63 | USD | 20251225 |