Float Zone Crystal Grower from China
Equipment that uses the float zone method to purify and grow semiconductor crystals by melting a narrow zone of polycrystalline silicon with RF heating while moving it along the rod. Classified under HTS 8479.82.00 for its stirring and homogenizing action in zone refining to achieve ultra-pure monocrystalline silicon.
Duty Rate — China → United States
37.5%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 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
• Include process flow diagrams showing zone melting and homogenization to justify 8479 classification over furnace equipment
• Ensure labeling specifies semiconductor-grade purity levels to prevent misclassification as general lab apparatus