| Vendor | Spec | Unit | Price | Currency | Date |
| WENTONG Potassium | China national standards | MT | 1097.74 | USD | 20250930 |
| Pingxiang Lixin BioTech | China national standards | MT | 1097.74 | USD | 20250930 |
| Pingxiang Lixin BioTech | China national standards | MT | 1069.59 | USD | 20250930 |
| Xiamen Yudeshun Chem | China national standards | MT | 1266.62 | USD | 20250930 |
| Shandong Zhongke Taihua | China national standards | MT | 1055.02 | USD | 20250929 |
| WENTONG Potassium | China national standards | MT | 1055.02 | USD | 20250929 |
| Shandong Zhongke Taihua | China national standards | MT | 914.35 | USD | 20250929 |
| WENTONG Potassium | China national standards | MT | 1125.35 | USD | 20250929 |
| Jinan Aochen Chem | China national standards | MT | 1125.35 | USD | 20250929 |
| Jinan Aochen Chem | China national standards | MT | 1125.35 | USD | 20250929 |