Czochralski Crystal Puller from China
A Czochralski crystal puller is specialized equipment used to grow monocrystalline silicon boules from molten silicon for semiconductor wafer production. It falls under HTS 8479.30.00.00 as machinery for processing semiconductor materials, akin to treating ligneous materials, per statistical notes on semiconductor manufacturing equipment.
Duty Rate — China → United States
35%
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 qualifies under statistical note (a)(i) for crystal growers; provide technical specs on Czochralski method
• Include FCC certification if electromagnetic components present; common pitfall is misclassifying as general lab apparatus
• Document end-use for semiconductor production to avoid reclassification during customs review