| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 913.85 | USD | 20250921 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 899.79 | USD | 20250921 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 899.79 | USD | 20250921 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 956.02 | USD | 20250921 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 941.96 | USD | 20250921 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 885.73 | USD | 20250921 |
| Pingxiang Lixin Biochemical High Tech Co., Ltd. | China national standards | MT | 1096.61 | USD | 20250921 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1096.61 | USD | 20250921 |
| Pingxiang Lixin Biochemical High Tech Co., Ltd. | China national standards | MT | 1110.67 | USD | 20250921 |
| Pingxiang Lixin Biochemical High Tech Co., Ltd. | China national standards | MT | 1237.21 | USD | 20250921 |