| Vendor | Spec | Unit | Price | Currency | Date |
| Shanghai SKY Chem | China national standards | MT | 1104.31 | USD | 20250918 |
| Shandong Yushuo Chem | China national standards | MT | 956.6 | USD | 20250918 |
| Beijing WentongTech | China national standards | MT | 1083.21 | USD | 20250918 |
| Beijing WentongTech | China national standards | MT | 1083.21 | USD | 20250918 |
| Jinan Jinhao Chem | China national standards | MT | 1012.87 | USD | 20250918 |
| Jinan Jinhao Chem | China national standards | MT | 1026.94 | USD | 20250918 |
| WENTONG Potassium | China national standards | MT | 1097.28 | USD | 20250918 |
| Wuhan Hengjiu Chem | China national standards | MT | 984.74 | USD | 20250918 |
| WENTONG Potassium | China national standards | MT | 1012.87 | USD | 20250918 |
| Shandong Jinshenrun Chem | China national standards | MT | 1055.07 | USD | 20250918 |