8443.99.50.50/Czochralski Crystal Puller/China

Czochralski Crystal Puller from China

A Czochralski crystal puller is specialized equipment used to produce extremely pure monocrystalline semiconductor boules from silicon or gallium arsenide melts, from which wafers are sliced. It falls under HTS 8443.99.5050 as 'other' parts and accessories for printing machinery adapted for semiconductor processing, specifically in wafer manufacturing per statistical notes. This machine employs the Czochralski method for crystal growth essential to semiconductor production.

Duty Rate — China → United States

17.5%

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
9903.88.157.5%Except as provided in headings 9903.88.39, 9903.88.42, 9903.88.44, 9903.88.47, 9903.88.49, 9903.88.51, 9903.88.53, 9903.88.55, 9903.88.57, 9903.88.65, 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(r) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(s)
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Import Tips

• Verify classification under statistical notes for semiconductor manufacturing machines; provide detailed technical specs to CBP

• Obtain end-user certificates proving semiconductor fab use to avoid misclassification as general machinery

• Ensure ITAR/EAR compliance for dual-use tech; common pitfall is undervaluing high-precision components