1H-Pentafluoropropene (HFO-1234yf) from Mexico
HFO-1234yf is a low-GWP hydrofluoroolefin refrigerant used in automotive air conditioning systems as a replacement for HFC-134a. It qualifies under HTS 2903.59.90.00 as an unsaturated fluorinated derivative of acyclic hydrocarbons with hydrogen substitution. Meets Chapter 29 definition for halogenated organic compounds.
Duty Rate — Mexico → United States
100%
Rate breakdown
9903.04.6096.3%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Obtain EPA Significant New Alternatives Policy (SNAP) approval documentation for refrigerant applications
• Include ASHRAE safety classification (A2L) and flammability test results in import documentation
• Ensure proper labeling per 40 CFR Part 82 for HFO refrigerants to avoid customs holds