| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Laya Chem | Reagent Grade | MT | 57.7 | USD | 20250915 |
| Shandong Huize Chem | Reagent Grade | MT | 106.96 | USD | 20250915 |
| Hunan Jianghai Env | China national standards | MT | 123.85 | USD | 20250915 |
| Shandong Qiangsen Chem | China national standards | MT | 102.74 | USD | 20250915 |
| Shandong Qiangsen Chem | China national standards | MT | 102.79 | USD | 20250913 |
| Hunan Jianghai Env | China national standards | MT | 123.91 | USD | 20250912 |
| Hunan Jianghai Env | China national standards | MT | 535.07 | USD | 20250912 |
| Shandong Laya Chem | Reagent Grade | MT | 57.73 | USD | 20250912 |
| Shandong Qiangsen Chem | China national standards | MT | 102.79 | USD | 20250912 |
| Hunan Jianghai Env | China national standards | MT | 123.88 | USD | 20250911 |