| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 885.73 | USD | 20250919 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1026.32 | USD | 20250919 |
| Hebei Risun Energy Limited | China national standards | MT | 956.02 | USD | 20250919 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 899.79 | USD | 20250919 |
| Qingdao Chengxin Hongfeng Chemical Co., Ltd. | China national standards | MT | 843.55 | USD | 20250919 |
| Jinan Shengfeng Industry and Trade Co., Ltd. | China national standards | MT | 899.79 | USD | 20250919 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 1026.32 | USD | 20250919 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 843.55 | USD | 20250919 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 941.96 | USD | 20250919 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 928.47 | USD | 20250918 |