| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 882.41 | USD | 20250804 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 1092.51 | USD | 20250804 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 965.09 | USD | 20250803 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 881.17 | USD | 20250802 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 881.17 | USD | 20250802 |