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3815.90.30.00/Manganese Dioxide Oxidation Catalyst/Japan

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%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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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