| Vendor | Spec | Unit | Price | Currency | Date |
| Zaozhuang Yitai | China national standards | MT | 544.15 | USD | 20251210 |
| Zaozhuang Yitai | China national standards | MT | 558.28 | USD | 20251210 |
| Zaozhuang Yitai | China national standards | MT | 543.99 | USD | 20251209 |
| Zaozhuang Yitai | China national standards | MT | 558.12 | USD | 20251209 |
| Zaozhuang Yitai | China national standards | MT | 558.19 | USD | 20251208 |
| Zaozhuang Yitai | China national standards | MT | 544.06 | USD | 20251208 |
| Zaozhuang Yitai | China national standards | MT | 537.11 | USD | 20251205 |
| Zaozhuang Yitai | China national standards | MT | 537.11 | USD | 20251205 |
| Zaozhuang Yitai | China national standards | MT | 537.03 | USD | 20251201 |
| Zaozhuang Yitai | China national standards | MT | 537.03 | USD | 20251201 |