| Vendor | Spec | Unit | Price | Currency | Date |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1097.02 | USD | 20251009 |
| Pingxiang Lixin Biochemical High Tech Co., Ltd. | China national standards | MT | 1111.08 | USD | 20251009 |
| Pingxiang Lixin Biochemical High Tech Co., Ltd. | China national standards | MT | 1097.02 | USD | 20251009 |
| Pingxiang Lixin Biochemical High Tech Co., Ltd. | China national standards | MT | 1097.02 | USD | 20251009 |
| Pingxiang Lixin Biochemical High Tech Co., Ltd. | China national standards | MT | 1068.89 | USD | 20251009 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1097.02 | USD | 20251009 |
| Pingxiang Lixin Biochemical High Tech Co., Ltd. | China national standards | MT | 1068.89 | USD | 20251009 |
| Pingxiang Lixin Biochemical High Tech Co., Ltd. | China national standards | MT | 1012.63 | USD | 20251009 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 871.99 | USD | 20251009 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 773.54 | USD | 20251009 |