Crystal Boule Grinder Hoist Assembly from China
Hoist system integrated with grinders to precisely shape semiconductor crystal boules to wafer diameters and add conductivity flats. HTS 8431.10.00 applies as part of 8425 machinery, matching statistical note (a)(ii)(A) for crystal grinders in wafer prep.
Duty Rate — China → United States
37.5%
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
Import Tips
• Submit engineering drawings highlighting hoist integration and flat-grinding specs for customs verification
• Obtain advance ruling on 'precise diameter' tolerance to confirm 8425 principal use