| Vendor | Spec | Unit | Price | Currency | Date |
| Shaanxi CoalChem | China national standards | MT | 353.31 | USD | 20251201 |
| Shaanxi CoalChem | China national standards | MT | 353.16 | USD | 20251128 |
| Ningxia Xingping Chem | China national standards | MT | 360.23 | USD | 20251128 |
| IM Yongxin Chem | China national standards | MT | 353.16 | USD | 20251128 |
| IM Yongxin Chem | China national standards | MT | 352.98 | USD | 20251125 |
| Ningxia Xingping Chem | China national standards | MT | 360.04 | USD | 20251125 |
| Shaanxi CoalChem | China national standards | MT | 352.98 | USD | 20251125 |
| IM Yongxin Chem | China national standards | MT | 352.87 | USD | 20251124 |
| Ningxia Xingping Chem | China national standards | MT | 359.93 | USD | 20251124 |
| Wuhai Zhonglian Chem | China national standards | MT | 352.87 | USD | 20251124 |