| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 816.56 | USD | 20250831 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 816.56 | USD | 20250830 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 816.56 | USD | 20250830 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 647.61 | USD | 20250830 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 746.16 | USD | 20250830 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 816.56 | USD | 20250829 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 816.56 | USD | 20250829 |
| Shandong Fushengyong Trading Co., Ltd. | Industrial Grade | MT | 901.03 | USD | 20250829 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 901.03 | USD | 20250829 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 844.71 | USD | 20250829 |