| Vendor | Spec | Unit | Price | Currency | Date |
| Nanjing CharcoalChem | Qualified/Standard Grade | MT | 2004.72 | USD | 20251112 |
| Nanjing CharcoalChem | Qualified/Standard Grade | MT | 2004.06 | USD | 20251110 |
| Nanjing CharcoalChem | Qualified/Standard Grade | MT | 2004.63 | USD | 20251107 |
| Nanjing CharcoalChem | Qualified/Standard Grade | MT | 2002.79 | USD | 20251105 |
| Nanjing CharcoalChem | Qualified/Standard Grade | MT | 2003.75 | USD | 20251103 |
| Nanjing CharcoalChem | Qualified/Standard Grade | MT | 2003.39 | USD | 20251031 |
| Nanjing CharcoalChem | Qualified/Standard Grade | MT | 2004.43 | USD | 20251029 |
| Nanjing CharcoalChem | Qualified/Standard Grade | MT | 2003.36 | USD | 20251027 |
| Nanjing CharcoalChem | China national standards | MT | 2002.03 | USD | 20251024 |
| Nanjing CharcoalChem | Qualified/Standard Grade | MT | 2002.31 | USD | 20251023 |