| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 367.82 | USD | 20251211 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 346.6 | USD | 20251211 |
| China national standards | MT | 297.09 | USD | 20251211 | |
| Changzhou Yihan Chemical Co., Ltd. | China national standards | MT | 396.12 | USD | 20251211 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 325.38 | USD | 20251211 |
| Hebei Pengfa Chemcal Co., Ltd. | China national standards | MT | 329.63 | USD | 20251211 |
| China national standards | MT | 390.46 | USD | 20251211 | |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 396.12 | USD | 20251211 |
| China national standards | MT | 424.41 | USD | 20251211 | |
| Changzhou Yihan Chemical Co., Ltd. | China national standards | MT | 396.12 | USD | 20251211 |