| Vendor | Spec | Unit | Price | Currency | Date |
| Zaozhuang Yitai | China national standards | MT | 1058.48 | USD | 20251118 |
| Zaozhuang Yitai | China national standards | MT | 1059.08 | USD | 20251117 |
| Zaozhuang Yitai | China national standards | MT | 1058.95 | USD | 20251114 |
| Zaozhuang Yitai | China national standards | MT | 1058.35 | USD | 20251113 |
| Zaozhuang Yitai | China national standards | MT | 1058.83 | USD | 20251112 |
| Zaozhuang Yitai | China national standards | MT | 1058.35 | USD | 20251106 |
| Zaozhuang Yitai | China national standards | MT | 1057.81 | USD | 20251105 |
| Zaozhuang Yitai | China national standards | MT | 1058.05 | USD | 20251104 |
| Zaozhuang Yitai | China national standards | MT | 1058.32 | USD | 20251103 |
| Zaozhuang Yitai | China national standards | MT | 1058.13 | USD | 20251031 |