| Vendor | Spec | Unit | Price | Currency | Date |
| UniTrend China | China national standards | MT | 1041.42 | USD | 20250925 |
| Shandong Zhongke Taihua | China national standards | MT | 914.76 | USD | 20250925 |
| WENTONG Potassium | China national standards | MT | 1055.49 | USD | 20250925 |
| UniTrend China | China national standards | MT | 1104.75 | USD | 20250925 |
| Beijing WentongTech | China national standards | MT | 1069.56 | USD | 20250925 |
| Beijing WentongTech | China national standards | MT | 1069.56 | USD | 20250925 |
| WENTONG Potassium | China national standards | MT | 1097.71 | USD | 20250925 |
| Pingxiang Lixin BioTech | 200 mesh | MT | 1111.78 | USD | 20250925 |
| Pingxiang Lixin BioTech | China national standards | MT | 1097.71 | USD | 20250925 |
| Pingxiang Lixin BioTech | China national standards | MT | 1097.71 | USD | 20250925 |