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2903.59.90.00/Perfluoro-1-butene/Japan

Perfluoro-1-butene from Japan

Perfluoro-1-butene is a fully fluorinated C4 alkene used in chemical synthesis and as a reactive intermediate for fluoropolymer production. Classified under HTS 2903.59.90.00 as an 'other' unsaturated fluorinated derivative of acyclic hydrocarbons per Chapter 29 scope. Its complete fluorination distinguishes it from partially halogenated hydrocarbons.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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Import Tips

• Include NMR or GC-MS analysis certificates verifying unsaturated fluorocarbon structure

• Comply with Montreal Protocol reporting for ozone-depleting potential assessment

• Use UN-approved cylinders rated for high-pressure fluorinated gases to avoid common transport violations

Perfluoro-1-butene from Japan — Import Duty Rate | HTS 2903.59.90.00