8423.90.90.00/Wafer Grinder Scale Pan Assembly/Japan

Wafer Grinder Scale Pan Assembly from Japan

Custom pan assembly for inline scales on wafer grinders, lappers, and polishers to weigh wafers pre- and post-processing for flatness control. Classified in HTS 8423.90.90.00 as other parts of weighing machinery critical to semiconductor wafer preparation tolerances. Supports statistical process control in fabs.

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 engineering drawings showing integration with grinder weighing systems for binding ruling requests

• Use cleanroom-grade materials certification to expedite FDA-adjacent cleanroom import checks