| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Qingmai Tech | China national standards | MT | 240.13 | USD | 20251126 |
| Henan Qingmai Tech | China national standards | MT | 240.02 | USD | 20251125 |
| Henan Qingmai Tech | China national standards | MT | 239.95 | USD | 20251124 |
| Henan Qingmai Tech | China national standards | MT | 239.86 | USD | 20251121 |
| Henan Qingmai Tech | China national standards | MT | 239.76 | USD | 20251120 |
| Henan Qingmai Tech | China national standards | MT | 239.87 | USD | 20251119 |
| Henan Qingmai Tech | China national standards | MT | 239.92 | USD | 20251118 |
| Henan Qingmai Tech | China national standards | MT | 240.06 | USD | 20251117 |
| Henan Qingmai Tech | China national standards | MT | 240.03 | USD | 20251114 |
| Henan Qingmai Tech | China national standards | MT | 239.89 | USD | 20251113 |