HFO-1234ze Foam Blowing Agent from Japan
1,3,3,3-Tetrafluoropropene (HFO-1234ze) serves as an environmentally friendly foam blowing agent for polyurethane insulation. Classified under HTS 2903.51.1000 as a specifically named unsaturated fluorinated acyclic hydrocarbon. Used in spray foam and panel production for building insulation.
Duty Rate — Japan → United States
23.8%
Rate breakdown
9903.04.6211.3%Patented pharmaceutical articles that are the product of Japan, of a European Union member country, of South Korea, of Switzerland, or of Liechtenstein as provided for in subdivisions (c) and (f) of U.S. note 40 to this subchapter
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include SNAP program documentation for foam blowing applications
• Provide stabilization certificates as HFO-1234ze requires inhibitors for safe transport
• Ensure proper placarding for UN1950 aerosols or UN3163 for refrigerated liquids