| Vendor | Spec | Unit | Price | Currency | Date |
| Xingtai Risun Coal Chemicais Limited | China national standards | MT | 1280.7 | USD | 20251004 |
| Xingtai Risun Coal Chemicais Limited | China national standards | MT | 1280.7 | USD | 20251003 |
| Xingtai Risun Coal Chemicais Limited | China national standards | MT | 1280.7 | USD | 20251002 |
| Xingtai Risun Coal Chemicais Limited | China national standards | MT | 1280.7 | USD | 20251001 |
| Xingtai Risun Coal Chemicais Limited | China national standards | MT | 1280.7 | USD | 20250930 |
| Xingtai Risun Coal Chemicais Limited | China national standards | MT | 1280.09 | USD | 20250929 |