2903.44.10.20/HFC-143a + Pentafluoroethane Blend Base/Mexico

HFC-143a + Pentafluoroethane Blend Base from Mexico

1,1,1-Trifluoroethane (HFC-143a) component (90%) for blending with HFC-125 per EPA SNAP allowances. Still classified under HTS 2903.44.1020 when imported pure for subsequent mixing, as the specific compound naming prevails.

Duty Rate — Mexico → United States

13.7%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico

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Import Tips

• Document intended blend ratios (e.g

• 50/50 for R-507A); include downstream blender EPA ID

• Maintain segregated storage to prevent accidental pre-mixing during import transit

• ISO 9163 analytical method certification required for blend component verification