Manganese Dioxide Oxidation Catalyst from Japan
Electrolytic MnO2 used as depolarizer catalyst in alkaline batteries. Inorganic reaction accelerator under HTS 3815.90.3000.
Duty Rate — Japan → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Electrolytic vs chemical grade distinguished by tap density (>4.2g/cm³)
• IEC/EN standards compliance for battery performance certification
• Heavy metal impurities (<50ppm) testing required for battery safety