| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chem | China national standards | MT | 102.21 | USD | 20250726 |
| Shandong Qiangsen Chem | China national standards | MT | 102.21 | USD | 20250725 |
| Shandong Qiangsen Chem | China national standards | MT | 102.26 | USD | 20250724 |
| Shandong Qiangsen Chem | China national standards | MT | 102.22 | USD | 20250723 |
| Shandong Qiangsen Chem | China national standards | MT | 102.16 | USD | 20250722 |
| Shandong Huize Chem | Reagent Grade | MT | 106.26 | USD | 20250721 |
| Shandong Qiangsen Chem | China national standards | MT | 102.07 | USD | 20250721 |
| Shandong Qiangsen Chem | China national standards | MT | 102.1 | USD | 20250719 |
| Shandong Qiangsen Chem | China national standards | MT | 102.1 | USD | 20250718 |
| Shandong Huize Chem | Reagent Grade | MT | 106.3 | USD | 20250718 |