| Vendor | Spec | Unit | Price | Currency | Date |
| Zibo Feiyuan Chem | China national standards | MT | 1553.76 | USD | 20251126 |
| Zibo Feiyuan Chem | China national standards | MT | 1552.64 | USD | 20251124 |
| Zibo Feiyuan Chem | China national standards | MT | 1552.03 | USD | 20251121 |
| Zibo Feiyuan Chem | China national standards | MT | 1551.37 | USD | 20251120 |
| Zibo Feiyuan Chem | China national standards | MT | 1552.09 | USD | 20251119 |
| Zibo Feiyuan Chem | China national standards | MT | 1552.44 | USD | 20251118 |
| Zibo Feiyuan Chem | China national standards | MT | 1553.32 | USD | 20251117 |
| Zibo Feiyuan Chem | China national standards | MT | 1553.12 | USD | 20251114 |
| Zibo Feiyuan Chem | China national standards | MT | 1552.25 | USD | 20251113 |
| Zibo Feiyuan Chem | China national standards | MT | 1552.95 | USD | 20251112 |