Czochralski Crystal Puller Nozzle Assembly from China
This nozzle assembly is a precision-engineered part used in Czochralski crystal growers for directing the flow of molten silicon during monocrystalline boule formation in semiconductor manufacturing. It falls under HTS 8424.90.9080 as a part of a mechanical appliance for projecting liquids (molten semiconductor material). Classified here due to its role in jet projecting high-temperature liquids in crystal growth 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
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 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(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Obtain manufacturer's declaration confirming use in semiconductor crystal growth to support classification; ensure documentation specifies material compatibility with molten silicon; watch for reclassification if sold as complete grower unit