1,1,1-Trifluoroethane (HFC-143a) Pure Gas Cylinder from Mexico
1,1,1-Trifluoroethane (HFC-143a) is a potent hydrofluorocarbon supplied in high-pressure cylinders for use in refrigerant blends and foam blowing applications. As a separate chemically defined saturated fluorinated acyclic hydrocarbon, it is precisely classified under HTS 2903.44.10 per chapter 29 notes.
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
• Verify importer has HFC production/import allowance under AIM Act; submit petitions if needed
• Label cylinders with UN1013 and chemical formula (C2H3F3) for customs and DOT compliance