| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Huiyi | China national standards | MT | 281.05 | USD | 20250825 |
| Henan Huiyi | China national standards | MT | 280.42 | USD | 20250824 |
| Henan Huiyi | China national standards | MT | 280.42 | USD | 20250823 |
| Henan Huiyi | China national standards | MT | 280.42 | USD | 20250822 |
| Henan Huiyi | China national standards | MT | 280.56 | USD | 20250821 |
| Henan Huiyi | China national standards | MT | 280.17 | USD | 20250820 |
| Henan Huiyi | China national standards | MT | 280.27 | USD | 20250819 |
| Henan Huiyi | China national standards | MT | 280.42 | USD | 20250818 |
| Henan Huiyi | China national standards | MT | 280.23 | USD | 20250817 |
| Henan Huiyi | China national standards | MT | 280.23 | USD | 20250816 |