| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Chem | Industrial Grade | MT | 15381.36 | USD | 20251113 |
| Shandong Yihe Chem | Industrial Grade | MT | 15388.31 | USD | 20251112 |
| Shandong Yihe Chem | China national standards | MT | 11011.82 | USD | 20251112 |
| Shandong Yihe Chem | China national standards | MT | 11006.69 | USD | 20251111 |
| Shandong Yihe Chem | Industrial Grade | MT | 15381.14 | USD | 20251111 |
| Shandong Yihe Chem | Industrial Grade | MT | 15383.31 | USD | 20251110 |
| Shandong Yihe Chem | China national standards | MT | 11008.24 | USD | 20251110 |
| Shandong Yihe Chem | China national standards | MT | 11011.35 | USD | 20251109 |
| Shandong Yihe Chem | Industrial Grade | MT | 15387.66 | USD | 20251109 |
| Shandong Yihe Chem | Industrial Grade | MT | 15387.66 | USD | 20251107 |