| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 303.33 | USD | 20251027 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 352.7 | USD | 20251027 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 352.7 | USD | 20251027 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 409.14 | USD | 20251027 |
| China national standards | MT | 352.7 | USD | 20251027 | |
| China national standards | MT | 409.14 | USD | 20251027 | |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 352.7 | USD | 20251027 |
| Hebei Pengfa Chemcal Co., Ltd. | China national standards | MT | 330.13 | USD | 20251027 |
| Hualu Holdings Group Co., Ltd. | China national standards | MT | 416.19 | USD | 20251027 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 303.33 | USD | 20251027 |