| Vendor | Spec | Unit | Price | Currency | Date |
| Wuhai Zhonglian Chem | China national standards | MT | 365.54 | USD | 20250919 |
| Ningxia Xingping Chem | China national standards | MT | 365.54 | USD | 20250919 |
| Ningxia Xingping Chem | China national standards | MT | 365.76 | USD | 20250918 |
| IM Yongxin Chem | China national standards | MT | 344.66 | USD | 20250918 |
| Wuhai Zhonglian Chem | China national standards | MT | 365.76 | USD | 20250918 |
| Fugu Aoweiga Energy | China national standards | MT | 362.95 | USD | 20250918 |
| Shaanxi CoalChem | China national standards | MT | 344.66 | USD | 20250918 |
| Unknown | China national standards | MT | 630.0 | USD | 20210323 |
| Unknown | China national standards | MT | 80.0 | USD | 20210323 |
| Unknown | China national standards | MT | 110.0 | USD | 20210323 |