| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 816.26 | USD | 20250915 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 844.4 | USD | 20250915 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 647.38 | USD | 20250915 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 816.26 | USD | 20250915 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 816.26 | USD | 20250915 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 816.26 | USD | 20250915 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 816.26 | USD | 20250915 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 745.89 | USD | 20250915 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 844.4 | USD | 20250915 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 942.92 | USD | 20250915 |