| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Jinhao Chemical Co., Ltd. | China national standards | MT | 1012.87 | USD | 20250918 |
| Jinan Jinhao Chemical Co., Ltd. | China national standards | MT | 1026.94 | USD | 20250918 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1097.28 | USD | 20250918 |
| Wuhan Hengjiu Chemical Co., Ltd. | China national standards | MT | 984.74 | USD | 20250918 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1012.87 | USD | 20250918 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 1055.07 | USD | 20250918 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 886.26 | USD | 20250918 |
| China national standards | MT | 1104.31 | USD | 20250918 | |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1055.07 | USD | 20250918 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 914.4 | USD | 20250918 |