HFC-143a Precision Cleaning Solvent from Mexico
Stabilized 1,1,1-trifluoroethane (HFC-143a) with transport stabilizer for vapor degreasing. Qualifies for HTS 2903.44.1020 per chapter note (f) allowing stabilizers necessary for preservation/transport of pure compounds.
Duty Rate — Mexico → United States
13.7%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Stabilizer must be <0.5% and solely for transport per chapter 29 note (f); document composition
• Boeing/BAC spec D6-17487 compliance for aerospace precision cleaning solvents
• Vapor pressure curves and KB values required for cleaning validation