| Vendor | Spec | Unit | Price | Currency | Date |
| Zaozhuang Yitai | China national standards | MT | 536.47 | USD | 20251112 |
| Wanglong | China national standards | MT | 613.83 | USD | 20251111 |
| Changzhou Qidi Chem | China national standards | MT | 677.33 | USD | 20251111 |
| Wanglong | China national standards | MT | 613.92 | USD | 20251110 |
| Wanglong | China national standards | MT | 614.09 | USD | 20251107 |
| Zaozhuang Yitai | China national standards | MT | 536.23 | USD | 20251106 |
| Wanglong | China national standards | MT | 571.51 | USD | 20251106 |
| Zaozhuang Yitai | China national standards | MT | 536.23 | USD | 20251106 |
| Zaozhuang Yitai | China national standards | MT | 535.96 | USD | 20251105 |
| Wanglong | China national standards | MT | 571.22 | USD | 20251105 |