Gallium Arsenide Crystal Puller Gas Purifier from China
Purification apparatus for inert gas lines in GaAs crystal growth centrifuges, removing moisture, oxygen, and particulates to achieve ppb-level purity required for compound semiconductor production. HTS 8421.39.0115 classification applies due to its role in dust collection and air cleaning specific to semiconductor boule formation equipment. Prevents defects in high-value GaAs wafers used in RF and optoelectronics.
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
• Include material safety data for handling arsine gas systems during customs review
• Certify compatibility with Czochralski pullers via OEM documentation