| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 820.22 | USD | 20250818 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 820.22 | USD | 20250818 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 680.01 | USD | 20250818 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 658.98 | USD | 20250818 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 743.11 | USD | 20250818 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 841.26 | USD | 20250818 |
| Shandong Fushengyong Trading Co., Ltd. | Industrial Grade | MT | 897.34 | USD | 20250818 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 897.34 | USD | 20250818 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 841.26 | USD | 20250818 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 939.4 | USD | 20250818 |