2903.59.90.00/Perfluorobutene (C4F8)/Japan

Perfluorobutene (C4F8) from Japan

Perfluorobutene is an unsaturated fluorinated acyclic hydrocarbon used primarily in plasma etching processes for semiconductor manufacturing. It falls under HTS 2903.59.90.00 as a halogenated derivative of hydrocarbons, specifically an unsaturated fluorinated derivative of acyclic hydrocarbons, not elsewhere specified. This chemically defined organic compound meets Chapter 29 note (a) for separate compounds.

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

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Import Tips

• Provide detailed chemical composition certificates and Safety Data Sheets (SDS) confirming purity levels and fluorocarbon content

• Ensure compliance with EPA regulations under the Toxic Substances Control Act (TSCA) for fluorinated compounds

• Verify container specifications meet DOT hazardous material transport standards for compressed fluorinated gases