Silicon Ingot Float Zone Liquid Separator from Mexico
Centrifuge separator for zone-refined silicon melts that achieves ultra-high purity (>99.9999%) for power semiconductor wafers. Under HTS 8421.29.0065 as semiconductor liquid purifying equipment.
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
• Purity level certifications (ppb impurities) essential for classification
• RF heating method documentation differentiates from standard centrifuges
• End-user statements from wafer fabs strengthen import case