| Vendor | Spec | Unit | Price | Currency | Date |
| Nanjing CharcoalChem | China national standards | MT | 2001.3 | USD | 20251022 |
| Nanjing CharcoalChem | Qualified/Standard Grade | MT | 2014.85 | USD | 20251020 |
| Nanjing CharcoalChem | Qualified/Standard Grade | MT | 2043.72 | USD | 20251017 |
| 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 |
| Nanjing CharcoalChem | Qualified/Standard Grade | MT | 2067.45 | USD | 20251009 |
| Nanjing CharcoalChem | Qualified/Standard Grade | MT | 2082.89 | USD | 20250930 |
| Nanjing CharcoalChem | Qualified/Standard Grade | MT | 2081.9 | USD | 20250929 |