| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Chem | Industrial Grade | MT | 13851.79 | USD | 20251205 |
| Shandong Yihe Chem | China national standards | MT | 12862.37 | USD | 20251205 |
| Shandong Yihe Chem | China national standards | MT | 12865.28 | USD | 20251204 |
| Shandong Yihe Chem | Industrial Grade | MT | 13430.79 | USD | 20251204 |
| Shandong Yihe Chem | Industrial Grade | MT | 13426.8 | USD | 20251203 |
| Shandong Yihe Chem | China national standards | MT | 12861.46 | USD | 20251203 |
| Shandong Yihe Chem | Industrial Grade | MT | 13419.22 | USD | 20251202 |
| Shandong Yihe Chem | China national standards | MT | 12854.2 | USD | 20251202 |
| Shandong Yihe Chem | Industrial Grade | MT | 13425.85 | USD | 20251201 |
| Shandong Yihe Chem | China national standards | MT | 12860.55 | USD | 20251201 |