| Vendor | Spec | Unit | Price | Currency | Date |
|---|---|---|---|---|---|
| Shandong Qiangsen Chem | China national standards | MT | USD | 20250805 | |
| Jinan Hongyi Bio | 24% | MT | USD | 20250805 | |
| Shandong Qiangsen Chem | China national standards | MT | USD | 20250804 | |
| Shandong Qiangsen Chem | China national standards | MT | USD | 20250802 | |
| Shandong Qiangsen Chem | China national standards | MT | USD | 20250801 | |
| Shandong Qiangsen Chem | China national standards | MT | USD | 20250731 | |
| Shandong Qiangsen Chem | China national standards | MT | USD | 20250730 | |
| Shandong Qiangsen Chem | China national standards | MT | USD | 20250729 | |
| Shandong Huize Chem | Reagent Grade | MT | USD | 20250728 | |
| Shandong Qiangsen Chem | China national standards | MT | USD | 20250728 |
