| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 302.58 | USD | 20251004 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 344.8 | USD | 20251004 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 344.8 | USD | 20251003 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 344.8 | USD | 20251002 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 344.8 | USD | 20251001 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 302.58 | USD | 20250930 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 302.44 | USD | 20250929 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 344.64 | USD | 20250929 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 302.44 | USD | 20250929 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 344.33 | USD | 20250928 |