| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Chem | China national standards | MT | 12244.04 | USD | 20251008 |
| Shandong Yihe Chem | Industrial Grade | MT | 15903.17 | USD | 20251007 |
| Shandong Yihe Chem | China national standards | MT | 12244.04 | USD | 20251007 |
| Shandong Yihe Chem | China national standards | MT | 12238.18 | USD | 20250929 |
| Shandong Yihe Chem | Industrial Grade | MT | 15895.57 | USD | 20250929 |
| Shandong Yihe Chem | Industrial Grade | MT | 15881.49 | USD | 20250928 |
| Shandong Yihe Chem | Industrial Grade | MT | 15881.49 | USD | 20250927 |
| Shandong Yihe Chem | China national standards | MT | 12227.34 | USD | 20250927 |
| Shandong Yihe Chem | Industrial Grade | MT | 15881.49 | USD | 20250926 |
| Shandong Yihe Chem | Industrial Grade | MT | 15902.73 | USD | 20250925 |