</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

Manganese Oxide Nanoparticles from Germany

Nano-sized manganese dioxide particles (<100nm) for catalysts in chemical reactions and water treatment. Falls under HTS 2820.90.00.00 as other manganese oxides, chemically defined despite nanoscale form. Used in advanced oxidation processes for pollutant degradation.

Duty Rate — Germany → United States

10%

Rate breakdown

9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%

Import Tips

Submit particle size distribution reports to CBP to confirm pure compound status vs. nanomaterial preparations

Comply with EPA nanomaterial reporting under TSCA for imports exceeding certain volumes

Package in inert atmospheres if sensitive; document to avoid reclassification as unstable reactive under hazmat rules