| Vendor | Spec | Unit | Price | Currency | Date |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1085.61 | USD | 20251026 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 1029.21 | USD | 20251026 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1029.21 | USD | 20251026 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 1029.21 | USD | 20251026 |
| Pingxiang Lixin Biochemical High Tech Co., Ltd. | China national standards | MT | 1092.66 | USD | 20251026 |
| Pingxiang Lixin Biochemical High Tech Co., Ltd. | China national standards | MT | 1064.46 | USD | 20251026 |
| Pingxiang Lixin Biochemical High Tech Co., Ltd. | China national standards | MT | 1085.61 | USD | 20251026 |
| Jinan Jinhao Chemical Co., Ltd. | China national standards | MT | 1015.11 | USD | 20251025 |
| Wuhan Hengjiu Chemical Co., Ltd. | China national standards | MT | 1001.02 | USD | 20251025 |
| Wuhan Hengjiu Chemical Co., Ltd. | China national standards | MT | 986.92 | USD | 20251025 |