| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 541.61 | USD | 20250918 |
| Qingdao Chengxin Hongfeng Chemical Co., Ltd. | China national standards | MT | 534.57 | USD | 20250918 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 541.61 | USD | 20250918 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 590.84 | USD | 20250918 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 506.44 | USD | 20250918 |
| Nanjing Daze Trading Co., Ltd. | China national standards | MT | 773.72 | USD | 20250918 |
| Weifang Shuoxin Chemical Co., Ltd. | China national standards | MT | 534.57 | USD | 20250918 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 619.48 | USD | 20250916 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 506.85 | USD | 20250916 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 703.96 | USD | 20250916 |