2903.59.90.00/Perfluoroisobutene (PFIB)/Japan

Perfluoroisobutene (PFIB) from Japan

Perfluoroisobutene used as chemical intermediate despite high toxicity requiring special handling. HTS 2903.59.90.00 classification as branched unsaturated fluorinated acyclic hydrocarbon. Chapter 29 note (g) permits safety identification additives.

Duty Rate — Japan → United States

3.7%

Rate breakdown

9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
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Import Tips

• Require DEA Schedule 1 chemical controls and end-user verification

• Use specialized PFIB-rated regulators with fluoropolymer diaphragms

• Include LC50 mammalian inhalation toxicity data (<0.02 ppm/4h)

Perfluoroisobutene (PFIB) from Japan — Import Duty Rate | HTS 2903.59.90.00