| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Chem | China national standards | MT | 10996.76 | USD | 20251021 |
| Shandong Yihe Chem | Industrial Grade | MT | 15357.95 | USD | 20251020 |
| Shandong Yihe Chem | China national standards | MT | 10990.09 | USD | 20251020 |
| Shandong Yihe Chem | Industrial Grade | MT | 15363.15 | USD | 20251017 |
| Shandong Yihe Chem | China national standards | MT | 10993.81 | USD | 20251017 |
| Shandong Yihe Chem | China national standards | MT | 12259.05 | USD | 20251016 |
| Shandong Yihe Chem | Industrial Grade | MT | 15922.67 | USD | 20251016 |
| Shandong Yihe Chem | Industrial Grade | MT | 15916.61 | USD | 20251015 |
| Shandong Yihe Chem | China national standards | MT | 12254.38 | USD | 20251015 |
| Shandong Yihe Chem | China national standards | MT | 12249.9 | USD | 20251014 |