Monocrystalline Boule Polishing Pump Valve Assembly from Canada
Specialized valve assembly for polishing pumps used in preparing monocrystalline semiconductor boules for wafer slicing. Classified in HTS 8413.91.9010 for parts of 8413.30.90 pumps in semiconductor processing. Controls precise chemical flow rates.
Duty Rate — Canada → United States
25%
Rate breakdown
9903.94.0525%Except for products described in headings 9903.94.06, 9903.94.32, 9903.94.33, 9903.94.42, 9903.94.43, 9903.94.44, 9903.94.45, 9903.94.52, 9903.94.53, 9903.94.54, 9903.94.55, 9903.94.62, 9903.94.63, 9903.94.66 and 9903.94.67, automobile parts, as provided for in subdivision (g) of U.S. note 33 to this subchapter
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
9903.74.100%Articles as provided for in subdivision (k) of U.S. note 38 to this subchapter
9903.74.110%Articles as provided for in subdivision (l) of U.S. note 38 to this subchapter.
Import Tips
• Pressure rating documentation mandatory; SEMI S2 safety compliance often required; segregate from general industrial valves