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9031.90.59.00/Interferometer Mirror Mount Assembly/Japan

Interferometer Mirror Mount Assembly from Japan

Kinematic mirror mount for laser interferometer reference mirrors in length measuring systems. Falls under HTS 9031.90.59.00 as part for other optical measuring appliances. Provides sub-arcsecond alignment stability.

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

• Angular deviation specs (<1 arcsec) prove metrology function

• Distinguish from general optics (9002) by measurement application

• Mirror excluded by note 1(d) if not mounted assembly

Interferometer Mirror Mount Assembly from Japan — Import Duty Rate | HTS 9031.90.59.00