| Vendor | Spec | Unit | Price | Currency | Date |
| Wanhua Chem | China national standards | MT | 2287.33 | USD | 20251114 |
| Nanjing CharcoalChem | Qualified/Standard Grade | MT | 2033.18 | USD | 20251114 |
| Shandong Guanjiu Energy | China national standards | MT | 2287.33 | USD | 20251114 |
| Shandong Guanjiu Energy | Qualified/Standard Grade | MT | 2287.33 | USD | 20251114 |
| 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 |