Beryllium Copper Electrical Feedthrough for Wafer Grinder from Mexico
Beryllium copper alloy feedthrough bushing for vacuum-sealed electrical connections in wafer grinding machines of heading 8426. Essential for powering grinders that prepare crystal boules to precise diameters in semiconductor manufacturing. Classified in 8431.49.90.92 for its copper alloy construction and use with 8426 machinery.
Duty Rate — Mexico → United States
25%
Rate breakdown
9903.82.0925%Except as provided for in headings 9903.82.16, 9903.82.20–9903.82.26 and 9903.85.68, articles of copper and derivative aluminum and steel articles, as provided for in subdivisions (c)(vi)–(viii) and (xi) of U.S. note 16 to this subchapter
9903.05.900%Articles of aluminum, of steel or of copper or derivative aluminum or steel articles; passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; medium- and heavy-duty vehicles; parts of medium- and heavy-duty vehicles; wood products; patented pharmaceutical articles; and semiconductor articles, as provided in subdivision (f) of U.S. note 52 to this subchapter
Import Tips
• Declare beryllium content explicitly; special handling notices may apply for hazardous material rules
• Pair with equipment blueprints showing feedthrough integration to confirm principal machinery use