Czochralski Crystal Puller Heat Exchanger from China
This heat exchanger is a critical part of Czochralski crystal growers used in semiconductor wafer manufacturing to control the temperature of the melt during monocrystalline silicon boule pulling. It falls under HTS 8402.90.0010 as a heat exchanger component for vapor generating boilers in semiconductor processing equipment.
Duty Rate — China → United States
39.3%
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
9903.88.0125%Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Import Tips
• Verify equipment end-use certification for semiconductor manufacturing to qualify under statistical notes
• Provide detailed technical specs showing integration with crystal puller vapor systems
• Avoid misclassification as general industrial parts by documenting boule production role