| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Tianyi Chem | Agricultural Grade | MT | 593.45 | USD | 20260303 |
| Shandong Tianyi Chem | Agricultural Grade | MT | 590.66 | USD | 20260224 |
| Shandong Tianyi Chem | Agricultural Grade | MT | 590.45 | USD | 20260211 |
| Shandong Tianyi Chem | Agricultural Grade | MT | 589.33 | USD | 20260205 |
| Shandong Tianyi Chem | Agricultural Grade | MT | 586.31 | USD | 20260123 |
| Shandong Tianyi Chem | China national standards | MT | 591.4 | USD | 20260106 |
| Shandong Tianyi Chem | China national standards | MT | 591.4 | USD | 20260106 |
| Shandong Tianyi Chem | China national standards | MT | 590.43 | USD | 20251231 |