| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Jinrihe Chem | China national standards | MT | 900.69 | USD | 20250924 |
| Jinan Jinrihe Chem | China national standards | MT | 914.76 | USD | 20250924 |
| Shandong Jinshenrun Chem | China national standards | MT | 886.61 | USD | 20250924 |
| Shandong Jinshenrun Chem | China national standards | MT | 1055.49 | USD | 20250924 |
| WENTONG Potassium | China national standards | MT | 1013.27 | USD | 20250924 |
| Shandong Xima | China national standards | MT | 872.54 | USD | 20250924 |
| Pingxiang Lixin BioTech | China national standards | MT | 1013.27 | USD | 20250924 |
| Pingxiang Lixin BioTech | China national standards | MT | 1069.56 | USD | 20250924 |
| Pingxiang Lixin BioTech | China national standards | MT | 1069.56 | USD | 20250924 |
| Pingxiang Lixin BioTech | China national standards | MT | 1111.78 | USD | 20250924 |