| Vendor | Spec | Unit | Price | Currency | Date |
|---|---|---|---|---|---|
| Shandong Laya Chem | Reagent Grade | MT | USD | 20250829 | |
| Hunan Jianghai Env | China national standards | MT | USD | 20250829 | |
| Shandong Qiangsen Chem | China national standards | MT | USD | 20250828 | |
| Hunan Jianghai Env | China national standards | MT | USD | 20250828 | |
| Shandong Laya Chem | Reagent Grade | MT | USD | 20250828 | |
| Shandong Laya Chem | Reagent Grade | MT | USD | 20250827 | |
| Shandong Qiangsen Chem | China national standards | MT | USD | 20250827 | |
| Hunan Jianghai Env | China national standards | MT | USD | 20250827 | |
| Shandong Laya Chem | Reagent Grade | MT | USD | 20250826 | |
| Shandong Qiangsen Chem | China national standards | MT | USD | 20250826 |
