| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Chem | Industrial Grade | MT | 13864.13 | USD | 20251211 |
| Shandong Yihe Chem | China national standards | MT | 13298.25 | USD | 20251211 |
| Shandong Yihe Chem | Industrial Grade | MT | 13992.34 | USD | 20251210 |
| Shandong Yihe Chem | China national standards | MT | 13144.32 | USD | 20251210 |
| Shandong Yihe Chem | Industrial Grade | MT | 13988.39 | USD | 20251209 |
| Shandong Yihe Chem | China national standards | MT | 12999.31 | USD | 20251209 |
| Shandong Yihe Chem | Industrial Grade | MT | 13848.85 | USD | 20251208 |
| Shandong Yihe Chem | China national standards | MT | 12859.65 | USD | 20251208 |
| Shandong Yihe Chem | China national standards | MT | 12862.37 | USD | 20251207 |
| Shandong Yihe Chem | Industrial Grade | MT | 13851.79 | USD | 20251207 |