2-Chloro-1,1,1,2-tetrafluoroethane (HCFC-124) from China
Although containing one hydrogen, HCFC-124 qualifies under HTS 2903.77.00 when imported as high-purity isomer meeting perhalogenation specs for F/Cl substitution pattern. This acyclic ethane derivative serves as a fire suppressant and refrigerant transition compound. Classification follows the 'other' perhalogenated F/Cl provision.
Duty Rate — China → United States
13.7%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Track HCFC phaseout allocations under EPA regulations
• Include azeotrope composition if blended imports
• Validate against Montreal Protocol consumption limits