| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhongke Taihua | China national standards | MT | 919.56 | USD | 20251211 |
| Jinan Aochen Chem | China national standards | MT | 1131.77 | USD | 20251211 |
| WENTONG Potassium | China national standards | MT | 1061.03 | USD | 20251211 |
| Pingxiang Lixin BioTech | China national standards | MT | 1244.94 | USD | 20251211 |
| Jinan Jinrihe Chem | China national standards | MT | 919.56 | USD | 20251211 |
| Jinan Aochen Chem | China national standards | MT | 1103.47 | USD | 20251211 |
| Shandong Jinshenrun Chem | China national standards | MT | 1032.74 | USD | 20251211 |
| Shanghai SKY Chem | China national standards | MT | 1082.25 | USD | 20251211 |
| WENTONG Potassium | China national standards | MT | 1131.77 | USD | 20251211 |
| UniTrend China | China national standards | MT | 1082.25 | USD | 20251211 |