| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinshenrun Chem | China national standards | MT | 1054.08 | USD | 20250928 |
| WENTONG Potassium | China national standards | MT | 1011.92 | USD | 20250928 |
| Shandong Yushuo Chem | China national standards | MT | 955.7 | USD | 20250928 |
| Jinan Angxin Chem | China national standards | MT | 997.86 | USD | 20250928 |
| Pingxiang Lixin BioTech | China national standards | MT | 1011.92 | USD | 20250928 |
| Pingxiang Lixin BioTech | China national standards | MT | 1068.14 | USD | 20250928 |
| Beijing WentongTech | China national standards | MT | 1096.24 | USD | 20250928 |
| Pingxiang Lixin BioTech | China national standards | MT | 1068.14 | USD | 20250928 |
| Pingxiang Lixin BioTech | China national standards | MT | 1110.3 | USD | 20250928 |
| Pingxiang Lixin BioTech | China national standards | MT | 1096.24 | USD | 20250928 |