| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 302.37 | USD | 20250922 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 344.56 | USD | 20250922 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 344.45 | USD | 20250921 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 302.27 | USD | 20250920 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 302.27 | USD | 20250920 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 302.27 | USD | 20250920 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 302.27 | USD | 20250920 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 302.27 | USD | 20250920 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 344.45 | USD | 20250920 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 302.27 | USD | 20250919 |