Activated Manganese Dioxide

Activated manganese dioxide is a porous form of MnO2 used as a catalyst in organic synthesis and water purification filters. It is classified in HTS 2820.10.00.00 as chemically defined manganese dioxide, activated through thermal or chemical treatment to increase surface area. This distinguishes it from natural pyrolusite.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China4.7%+25.0%29.7%
🇲🇽Mexico4.7%4.7%
🇨🇦Canada4.7%4.7%
🇩🇪Germany4.7%4.7%
🇯🇵Japan4.7%4.7%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

3815.11.00Higher: 35% vs 29.7%

If supported on inert carriers for catalysis

Catalyst preparations with manganese dioxide on alumina or silica are classified in 3815, not pure oxides.

3802.90.50.00Higher: 39.8% vs 29.7%

If used as oxidizing agent in activated carbon production

Mixtures for manufacturing activated carbon fall under 3802 as chemical preparations.

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Import Tips & Compliance

Include activation method and BET surface area specs in import docs to justify classification

Ensure REACH or TSCA compliance for chemical registrations in target markets

Avoid bulk packaging pitfalls by using anti-static liners for powder shipments

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