| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 344.33 | USD | 20250928 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 302.17 | USD | 20250927 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 302.17 | USD | 20250927 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 344.33 | USD | 20250927 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 302.17 | USD | 20250926 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 302.17 | USD | 20250926 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 344.33 | USD | 20250926 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 302.57 | USD | 20250925 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 302.57 | USD | 20250925 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 302.57 | USD | 20250924 |