| Vendor | Spec | Unit | Price | Currency | Date |
| Shanghai QianChem | China national standards | MT | 1059.94 | USD | 20251201 |
| Shanghai QianChem | China national standards | MT | 1058.83 | USD | 20251112 |
| Shanghai QianChem | China national standards | MT | 1058.34 | USD | 20251111 |
| Shanghai QianChem | China national standards | MT | 1058.13 | USD | 20251031 |
| Shanghai QianChem | China national standards | MT | 1057.02 | USD | 20251022 |
| Shanghai QianChem | China national standards | MT | 1057.38 | USD | 20251021 |
| Shanghai QianChem | China national standards | MT | 1057.1 | USD | 20251017 |
| Shanghai QianChem | China national standards | MT | 1056.81 | USD | 20251016 |
| Shanghai QianChem | China national standards | MT | 1056.41 | USD | 20251015 |
| Shanghai QianChem | China national standards | MT | 1056.03 | USD | 20251014 |