| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Chengxin Hongfeng Chemical Co., Ltd. | China national standards | MT | 787.05 | USD | 20250926 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 829.21 | USD | 20250926 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 646.5 | USD | 20250926 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 843.27 | USD | 20250926 |
| Shandong Wells Chemicals Co., Ltd. | China national standards | MT | 1025.97 | USD | 20250926 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 907.72 | USD | 20250925 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 745.88 | USD | 20250925 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 830.32 | USD | 20250925 |
| Jinan Jinrihe Chemical Co., Ltd. | Industrial Grade | MT | 788.1 | USD | 20250925 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 956.98 | USD | 20250925 |