| Vendor | Spec | Unit | Price | Currency | Date |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 616.38 | USD | 20250820 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 504.31 | USD | 20250820 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 504.31 | USD | 20250820 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 623.39 | USD | 20250820 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 700.44 | USD | 20250820 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 700.44 | USD | 20250820 |
| Nanjing Daze Trading Co., Ltd. | China national standards | MT | 770.48 | USD | 20250820 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 539.53 | USD | 20250819 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 532.52 | USD | 20250819 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 539.53 | USD | 20250819 |