2903.59.90.00/Perfluorobutene (C4F8)/Canada

Perfluorobutene (C4F8) from Canada

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 — Canada → United States

110%

Rate breakdown

9903.04.6096.3%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter

9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, 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