| Vendor | Spec | Unit | Price | Currency | Date |
| Ningxia Xingping Chem | China national standards | MT | 359.57 | USD | 20251023 |
| Ningxia Xingping Chem | China national standards | MT | 359.39 | USD | 20251022 |
| Ningxia Xingping Chem | China national standards | MT | 359.51 | USD | 20251021 |
| Ningxia Xingping Chem | China national standards | MT | 359.29 | USD | 20251020 |
| Ningxia Xingping Chem | China national standards | MT | 359.41 | USD | 20251017 |
| Ningxia Xingping Chem | China national standards | MT | 359.18 | USD | 20251015 |
| Ningxia Xingping Chem | China national standards | MT | 359.05 | USD | 20251014 |
| Ningxia Xingping Chem | China national standards | MT | 366.16 | USD | 20251013 |
| Ningxia Xingping Chem | China national standards | MT | 365.95 | USD | 20251011 |
| Ningxia Xingping Chem | China national standards | MT | 365.95 | USD | 20251010 |