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8460.90.40/CNC Crystal Boule Grinder/Mexico

CNC Crystal Boule Grinder from Mexico

Numerically controlled grinding machine that shapes semiconductor crystal boules to precise diameters and grinds flats indicating conductivity type. Classified in HTS 8460.90.40 for its use of abrasives in metal (silicon/gallium arsenide) finishing during wafer manufacturing.

Duty Rate — Mexico → United States

14.4%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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Import Tips

• Provide detailed technical drawings showing abrasive grinding mechanism to avoid reclassification

• Label as 'numerically controlled' explicitly; include CNC software details in commercial invoice

• Watch for undervaluation pitfalls; semiconductor equip often scrutinized for fair market value

CNC Crystal Boule Grinder from Mexico — Import Duty Rate | HTS 8460.90.40