Silicon Wafer Processing Boiler Heat Exchanger from China
Heat exchanger for boilers in silicon wafer growth systems, precisely controlling vapor temperatures during monocrystalline boule formation for semiconductor fabrication. HTS 8402.90.0010 applies as parts of vapor generating boilers per statistical notes for semiconductor equipment.
Duty Rate — China → United States
39.3%
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
• Submit statistical note documentation proving semiconductor wafer manufacturing application
• Ensure stainless steel or specialty alloy certification for high-purity requirements
• Watch for undervaluation penalties on high-value crystal growth components