| Vendor | Spec | Unit | Price | Currency | Date |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1130.6 | USD | 20251201 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1031.67 | USD | 20251201 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 932.35 | USD | 20251130 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1087.74 | USD | 20251130 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1031.23 | USD | 20251130 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1059.49 | USD | 20251129 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1087.74 | USD | 20251129 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1031.23 | USD | 20251129 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1031.23 | USD | 20251128 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1130.12 | USD | 20251128 |