HFC-143a Industrial Chiller Fluid from Mexico
Specialty HFC blend for centrifugal chillers containing ≥15% HFC-143a by mass, used in large HVAC systems for commercial buildings. Optimized for high-pressure applications without ozone-depleting substances. Falls under 3827.61.00.00 per HFC-143a concentration requirements.
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
• Include ASHRAE safety classification (A1 refrigerant) documentation; critical for customs verification of proper handling
• Declare exact mass percentages via HPLC certificate; small deviations can trigger reclassification to 3827.62
• Budget for additional bonding requirements due to high environmental compliance scrutiny on HFC imports