Czochralski Crystal Puller from China
A Czochralski crystal puller is specialized machinery used to grow monocrystalline silicon boules by melting polycrystalline silicon and slowly pulling a seed crystal to form ingots for semiconductor wafer production. It involves precise temperature control for melting and crystallization processes. Classified under HTS 8419.89.95 as equipment for temperature-based material treatment in semiconductor manufacturing.
Duty Rate — China → United States
39.2%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0225%Except as provided in headings 9903.88.12, 9903.88.17, 9903.88.20, 9903.88.54, 9903.88.59, 9903.88.61, 9903.88.63, 9903.88.66, 9903.88.67, 9903.88.68, 9903.88.69, or 9903.88.70, articles the product of China, as provided for in U.S. note 20(c) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(d)
Import Tips
• Verify equipment meets statistical note definitions for semiconductor manufacturing to avoid reclassification
• Provide detailed technical specs and end-use certificates for clean energy exemptions if applicable
• Ensure proper documentation of temperature control features to distinguish from Chapter 84 heading 8486