| Vendor | Spec | Unit | Price | Currency | Date |
| Nanjing CharcoalChem | Qualified/Standard Grade | MT | 2042.4 | USD | 20251015 |
| Nanjing CharcoalChem | Qualified/Standard Grade | MT | 2042.4 | USD | 20251015 |
| Nanjing CharcoalChem | Qualified/Standard Grade | MT | 2056.14 | USD | 20251013 |
| Nanjing CharcoalChem | China national standards | MT | 2054.95 | USD | 20251011 |
| Wanhua Chem | China national standards | MT | 2390.93 | USD | 20251009 |
| Shandong Guanjiu Energy | China national standards | MT | 2390.93 | USD | 20251009 |
| Shandong Guanjiu Energy | Qualified/Standard Grade | MT | 2390.93 | USD | 20251009 |
| Nanjing CharcoalChem | Qualified/Standard Grade | MT | 2067.45 | USD | 20251009 |
| Shandong Guanjiu Energy | Qualified/Standard Grade | MT | 2462.88 | USD | 20250930 |
| Shandong Guanjiu Energy | China national standards | MT | 2462.88 | USD | 20250930 |