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
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 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