| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 331.97 | USD | 20251128 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 381.42 | USD | 20251128 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 395.6 | USD | 20251127 |
| China national standards | MT | 324.96 | USD | 20251127 | |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 395.6 | USD | 20251127 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 353.21 | USD | 20251127 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 381.47 | USD | 20251127 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 367.34 | USD | 20251127 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 324.96 | USD | 20251127 |
| Hebei Pengfa Chemcal Co., Ltd. | China national standards | MT | 329.19 | USD | 20251127 |