| Vendor | Spec | Unit | Price | Currency | Date |
| Zaozhuang Yitai | China national standards | MT | 543.29 | USD | 20251030 |
| Zaozhuang Yitai | China national standards | MT | 543.36 | USD | 20251028 |
| Zaozhuang Yitai | China national standards | MT | 543.36 | USD | 20251028 |
| Zaozhuang Yitai | China national standards | MT | 571.08 | USD | 20251023 |
| Zaozhuang Yitai | China national standards | MT | 564.03 | USD | 20251023 |
| Zaozhuang Yitai | China national standards | MT | 570.79 | USD | 20251022 |
| Zaozhuang Yitai | China national standards | MT | 563.75 | USD | 20251022 |
| Zaozhuang Yitai | China national standards | MT | 563.59 | USD | 20251020 |
| Zaozhuang Yitai | China national standards | MT | 570.64 | USD | 20251020 |
| Zaozhuang Yitai | China national standards | MT | 563.79 | USD | 20251017 |