| Vendor | Spec | Unit | Price | Currency | Date |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1126.0 | USD | 20251010 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1055.62 | USD | 20251010 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1097.02 | USD | 20251009 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1125.14 | USD | 20251009 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1012.63 | USD | 20251009 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1054.82 | USD | 20251009 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1097.74 | USD | 20251008 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1097.74 | USD | 20251007 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1013.3 | USD | 20251007 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1097.74 | USD | 20251006 |