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2903.59.90.00/Perfluoro-2-pentene/Japan

Perfluoro-2-pentene from Japan

Perfluoro-2-pentene serves as a selective etchant for advanced semiconductor nodes. Falls under HTS 2903.59.90.00 as unsaturated fluorinated acyclic hydrocarbon isomer. Chapter 29 classification rules prioritize principal chemical character.

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

• Submit SEMATECH process qualification documentation

• Use helium leak detection certification (<1x10^-9 scc/sec)

• Declare 7N purity level for 3nm+ semiconductor compatibility