| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Aochen Chem | China national standards | MT | 1124.35 | USD | 20250928 |
| Jinan Aochen Chem | China national standards | MT | 1124.35 | USD | 20250928 |
| Jinan Aochen Chem | China national standards | MT | 1124.35 | USD | 20250928 |
| WENTONG Potassium | China national standards | MT | 1124.35 | USD | 20250928 |
| Hubei 789 Chem | China national standards | MT | 772.99 | USD | 20250928 |
| Hubei 789 Chem | China national standards | MT | 772.99 | USD | 20250928 |
| Shanghai SKY Chem | China national standards | MT | 1103.27 | USD | 20250928 |
| Shandong Jinshenrun Chem | China national standards | MT | 885.43 | USD | 20250928 |
| Beijing WentongTech | China national standards | MT | 1096.24 | USD | 20250928 |
| Shandong Jinshenrun Chem | China national standards | MT | 1054.08 | USD | 20250928 |