HFC-143a Aerosol Propellant from Mexico
1,1,1-Trifluoroethane (HFC-143a) packaged for use as an aerosol propellant in consumer products like air dusters. Classified under HTS 2903.44.1020 as a pure separate chemically defined compound per chapter 29 note (a), specifically identified in the tariff subheading.
Duty Rate — Mexico → United States
13.7%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Include TSCA certification; HFC-143a requires pre-manufacture notice if new uses exceed reporting thresholds
• Verify container pressure ratings meet DOT 49 CFR for UN1950 aerosols; include filling documentation
• Prevent reclassification as finished aerosol product (HTS 8424) by importing chemical only, not assembled cans