1-Chloro-1,2,2,2-Tetrafluoroethane (HCFC-124) from Mexico
Although containing hydrogen, HCFC-124 (CHClFCF3) is sometimes misclassified but fits broader halogenated acyclic with F/Cl; however strictly per chapter notes, pure perhalogenated only. Used as refrigerant transition compound. Under 2903.77.00.80 as other F/Cl halogenated acyclic hydrocarbon.
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
• Confirm molecular formula via GC-MS analysis to prove perhalogenation status
• Phase-down quotas apply; check current AIISA allocations