HFC-134 Refrigerant (1,1,2,2-Tetrafluoroethane) from Mexico
1,1,2,2-Tetrafluoroethane (HFC-134) used as a specialty refrigerant and aerosol propellant, classified as a pure halogenated derivative of acyclic hydrocarbons under HTS 2903.45.10.00.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6096.3%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
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
• Include detailed chemical analysis certificates verifying isomer purity and absence of HFC-134a contamination
• Comply with TSCA (Toxic Substances Control Act) import certification requirements
• Label shipments clearly as UN 3159 '1,1,2,2-TETRAFLUOROETHANE' for proper hazmat handling