| Vendor | Spec | Unit | Price | Currency | Date |
| Zaozhuang Yitai | China national standards | MT | 570.37 | USD | 20251013 |
| Wanglong | China national standards | MT | 584.45 | USD | 20251013 |
| Zaozhuang Yitai | China national standards | MT | 563.32 | USD | 20251013 |
| Wanglong | China national standards | MT | 591.15 | USD | 20251011 |
| Zaozhuang Yitai | China national standards | MT | 577.07 | USD | 20251011 |
| Zaozhuang Yitai | China national standards | MT | 570.04 | USD | 20251011 |
| Changzhou Qidi Chem | China national standards | MT | 675.09 | USD | 20251009 |
| Zaozhuang Yitai | China national standards | MT | 583.67 | USD | 20251009 |
| Wanglong | China national standards | MT | 590.7 | USD | 20251009 |
| Zaozhuang Yitai | China national standards | MT | 569.6 | USD | 20251009 |