High-Purity Quartz Crucible from Mexico
CVD-coated quartz crucible for containing molten silicon in Czochralski pullers. Essential part of heading 8428 crystal growers, HTS 8431.39.0080. Withstands 1700°C and minimizes impurities.
Duty Rate — Mexico → United States
15%
Rate breakdown
9903.82.1015%Except as provided for in headings 9903.82.12, 9903.82.17 and 9903.85.68, derivative aluminum and steel articles with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 15 percent, as provided for in subdivision (f) of U.S. note 16 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)
Import Tips
• Declare opacity grade and coating type (SiO2 >99.999%) for classification
• Pitfall: lab glassware under 7017
• HTS license may needed for purity levels