| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Chem | Industrial Grade | MT | 15392.0 | USD | 20251117 |
| Shandong Yihe Chem | China national standards | MT | 11014.46 | USD | 20251117 |
| Shandong Yihe Chem | China national standards | MT | 11014.46 | USD | 20251117 |
| Shandong Yihe Chem | Industrial Grade | MT | 15392.0 | USD | 20251117 |
| Shandong Yihe Chem | Industrial Grade | MT | 15390.05 | USD | 20251116 |
| Shandong Yihe Chem | China national standards | MT | 11013.06 | USD | 20251116 |
| Shandong Yihe Chem | China national standards | MT | 11013.06 | USD | 20251115 |
| Shandong Yihe Chem | China national standards | MT | 11013.06 | USD | 20251114 |
| Shandong Yihe Chem | Industrial Grade | MT | 15390.05 | USD | 20251114 |
| Shandong Yihe Chem | Industrial Grade | MT | 15381.36 | USD | 20251113 |