| Vendor | Spec | Unit | Price | Currency | Date |
| Shaanxi CoalChem | China national standards | MT | 360.51 | USD | 20251204 |
| Ningxia Xingping Chem | China national standards | MT | 364.75 | USD | 20251204 |
| Ningxia Xingping Chem | China national standards | MT | 364.64 | USD | 20251203 |
| Shaanxi CoalChem | China national standards | MT | 360.4 | USD | 20251203 |
| IM Yongxin Chem | China national standards | MT | 381.6 | USD | 20251203 |
| Shaanxi CoalChem | China national standards | MT | 353.14 | USD | 20251202 |
| Ningxia Xingping Chem | China national standards | MT | 360.2 | USD | 20251202 |
| IM Yongxin Chem | China national standards | MT | 353.14 | USD | 20251202 |
| IM Yongxin Chem | China national standards | MT | 353.31 | USD | 20251201 |
| Ningxia Xingping Chem | China national standards | MT | 360.38 | USD | 20251201 |