Wafer Lapping Machine Conditioning Ring from Mexico
Cast iron or composite conditioning ring for wafer lappers (8426.30) that dresses the lapping plate surface for flatness control in semiconductor wafer preparation. Specific to machinery in 8426.11/19/30 subheadings, hence 8431.49.1010.
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
• Document ring groove patterns matching specific lapping machine models
• Avoid bulk import confusion with general machine shop rings under 8431.49.90
• Require material safety data for cast iron to meet REACH compliance