| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 1040.7 | USD | 20250922 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 970.38 | USD | 20250922 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 1047.73 | USD | 20250922 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 886.0 | USD | 20250922 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1082.89 | USD | 20250922 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 899.79 | USD | 20250921 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 913.85 | USD | 20250921 |
| Shandong Daoqin Chemical Co., Ltd. | China national standards | MT | 984.14 | USD | 20250921 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1096.61 | USD | 20250920 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 885.73 | USD | 20250920 |