| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 903.56 | USD | 20250820 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 896.56 | USD | 20250820 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 931.58 | USD | 20250820 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 840.52 | USD | 20250820 |
| Shandong Fushengyong Trading Co., Ltd. | Industrial Grade | MT | 896.56 | USD | 20250820 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 896.56 | USD | 20250820 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 679.66 | USD | 20250819 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 812.79 | USD | 20250819 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 812.79 | USD | 20250819 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 658.64 | USD | 20250819 |