| Vendor | Spec | Unit | Price | Currency | Date |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1124.35 | USD | 20250928 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1011.92 | USD | 20250928 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1096.24 | USD | 20250928 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1011.92 | USD | 20250927 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1096.24 | USD | 20250927 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1124.35 | USD | 20250926 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1054.08 | USD | 20250926 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1011.92 | USD | 20250926 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1096.24 | USD | 20250926 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1055.49 | USD | 20250925 |