3911.90.45.00/Polysulfone Thermosetting Beads/Japan

Polysulfone Thermosetting Beads from Japan

Beads of polysulfone resin with thermosetting modifications containing aromatic sulfone units for medical device molding. HTS 3911.90.4500 as polysulfones specified in note 3, thermosetting primary form. Offers biocompatibility and sterilizability.

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

• Certify biocompatibility if for medical use; note affects FDA clearance timing

• Prove sulfone aromatic > predominant monomer per note (a)(4) comparison