| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Angxin Chem | China national standards | MT | 1001.76 | USD | 20251122 |
| Shandong Jinshenrun Chem | China national standards | MT | 1029.98 | USD | 20251122 |
| WENTONG Potassium | China national standards | MT | 1029.98 | USD | 20251122 |
| WENTONG Potassium | China national standards | MT | 1086.42 | USD | 20251122 |
| Jinan Jinrihe Chem | China national standards | MT | 917.11 | USD | 20251121 |
| Jinan Angxin Chem | China national standards | MT | 1001.76 | USD | 20251121 |
| Jinan Jinrihe Chem | China national standards | MT | 917.11 | USD | 20251121 |
| Jinan Jinrihe Chem | China national standards | MT | 917.11 | USD | 20251121 |
| WENTONG Potassium | China national standards | MT | 1086.42 | USD | 20251121 |
| Shandong Jinshenrun Chem | China national standards | MT | 1029.98 | USD | 20251121 |