Gallium Arsenide Crystal Grinder from Japan
Specialized grinder for GaAs compound semiconductor boules, grinding to precise diameters and flats. Falls under HTS 8474.20.00 as crushing/grinding machinery for mineral substances in solid form. Used in optoelectronics and high-frequency device production.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include material safety data sheets for GaAs handling during customs inspection
• Classify specifically under semiconductor notes to prevent generic ore grinder treatment
• Watch for ITAR restrictions on compound semiconductor equipment