| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 395.77 | USD | 20251205 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 303.89 | USD | 20251205 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 303.89 | USD | 20251205 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 325.09 | USD | 20251205 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 395.77 | USD | 20251205 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 395.77 | USD | 20251205 |
| Hebei Pengfa Chemcal Co., Ltd. | China national standards | MT | 329.33 | USD | 20251205 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 303.89 | USD | 20251205 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 336.4 | USD | 20251205 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 353.36 | USD | 20251205 |