| Vendor | Spec | Unit | Price | Currency | Date |
| WENTONG Potassium | China national standards | MT | 1102.33 | USD | 20251201 |
| Pingxiang Lixin BioTech | China national standards | MT | 1088.2 | USD | 20251201 |
| Beijing WentongTech | China national standards | MT | 1109.4 | USD | 20251201 |
| Shandong Jinshenrun Chem | China national standards | MT | 890.35 | USD | 20251201 |
| Pingxiang Lixin BioTech | China national standards | MT | 1074.07 | USD | 20251201 |
| WENTONG Potassium | China national standards | MT | 1031.67 | USD | 20251201 |
| Shandong Yushuo Chem | China national standards | MT | 961.01 | USD | 20251201 |
| Shandong Zhongke Taihua | China national standards | MT | 918.61 | USD | 20251201 |
| WENTONG Potassium | China national standards | MT | 1059.94 | USD | 20251201 |
| UniTrend China | China national standards | MT | 1045.8 | USD | 20251201 |