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

Antimony Selenide Nanoparticles from Mexico

Antimony selenide nanoparticles are used in thin-film photovoltaics and batteries, with size under 100nm for enhanced properties. As a metal selenide, it fits HTS 2842.90.90.10 for chemically defined inorganic salts. Excluded from Chapter 28 only if organo-compounds.

Duty Rate — Mexico → United States

13.3%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico

Import Tips

Declare particle size for nanomaterial regs; EPA PMN if novel

Don't classify as pharmaceuticals under Chapter 30