| Vendor | Spec | Unit | Price | Currency | Date |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1013.27 | USD | 20250925 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1055.49 | USD | 20250925 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1097.71 | USD | 20250925 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1055.49 | USD | 20250924 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 985.12 | USD | 20250924 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1125.86 | USD | 20250924 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1013.27 | USD | 20250924 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1097.71 | USD | 20250924 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1125.86 | USD | 20250923 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1013.27 | USD | 20250923 |