8423.90.90.00/Wafer Grinder Scale Pan Assembly/China

Wafer Grinder Scale Pan Assembly from China

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 — China → United States

40.3%

Rate breakdown

9903.88.0125%Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]

9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China

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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