| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Chem | Industrial Grade | MT | 15378.1 | USD | 20251102 |
| Shandong Yihe Chem | China national standards | MT | 11004.51 | USD | 20251101 |
| Shandong Yihe Chem | Industrial Grade | MT | 15378.1 | USD | 20251101 |
| Shandong Yihe Chem | China national standards | MT | 11004.51 | USD | 20251031 |
| Shandong Yihe Chem | Industrial Grade | MT | 15378.1 | USD | 20251031 |
| Shandong Yihe Chem | China national standards | MT | 11007.0 | USD | 20251030 |
| Shandong Yihe Chem | Industrial Grade | MT | 15381.58 | USD | 20251030 |
| Shandong Yihe Chem | Industrial Grade | MT | 15386.14 | USD | 20251029 |
| Shandong Yihe Chem | China national standards | MT | 11010.26 | USD | 20251029 |
| Shandong Yihe Chem | Industrial Grade | MT | 15383.31 | USD | 20251028 |