| Vendor | Spec | Unit | Price | Currency | Date |
| Dezhou Shihua Chem | 32percent | MT | 103.75 | USD | 20260213 |
| Dezhou Shihua Chem | 32percent | MT | 98.92 | USD | 20260128 |
| Dezhou Shihua Chem | 32percent | MT | 100.22 | USD | 20260126 |
| Dezhou Shihua Chem | 32percent | MT | 106.27 | USD | 20260113 |
| Dezhou Shihua Chem | 32percent | MT | 106.27 | USD | 20260113 |
| Dezhou Shihua Chem | China national standards | MT | 110.88 | USD | 20251230 |
| Dezhou Shihua Chem | China national standards | MT | 110.9 | USD | 20251229 |