| Vendor | Spec | Unit | Price | Currency | Date |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1128.88 | USD | 20251103 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1086.54 | USD | 20251103 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1029.91 | USD | 20251102 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1086.34 | USD | 20251101 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1058.13 | USD | 20251101 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 987.58 | USD | 20251031 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1128.67 | USD | 20251031 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1029.91 | USD | 20251031 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1086.34 | USD | 20251031 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1058.13 | USD | 20251031 |