NC Crystal Boule Grinder from China
Numerically controlled grinding machine that shapes silicon crystal boules to exact diameters and grinds orientation flats indicating conductivity type. Classified under HTS 8461.50.4050 for NC metal-removal machine tools used in semiconductor crystal preparation per statistical notes. Critical for achieving wafer-ready boule specifications.
Duty Rate — China → United States
41.9%
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
• Provide boule diameter specs (150-450mm) and flat grinding documentation to confirm semiconductor classification
• Label as 'for semiconductor crystal growers/pullers' to distinguish from general metalworking grinders
• Check for dual-use classification requiring BIS export licenses due to precision tolerances