| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 680.02 | USD | 20250822 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 841.27 | USD | 20250822 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 897.35 | USD | 20250822 |
| Shandong Fushengyong Trading Co., Ltd. | Industrial Grade | MT | 897.35 | USD | 20250822 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 813.61 | USD | 20250821 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 813.61 | USD | 20250821 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 680.35 | USD | 20250821 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 813.61 | USD | 20250821 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 813.61 | USD | 20250821 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 645.28 | USD | 20250821 |