Low-K Dielectric Cyanate Ester from China
Specialty hydrocarbon novolac cyanate ester with dielectric constant <2.8, per HTS 3911.90.35.00 specification. Used in high-frequency antenna applications. Maintains primary resin form for processing flexibility.
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
9903.88.0225%Except as provided in headings 9903.88.12, 9903.88.17, 9903.88.20, 9903.88.54, 9903.88.59, 9903.88.61, 9903.88.63, 9903.88.66, 9903.88.67, 9903.88.68, 9903.88.69, or 9903.88.70, articles the product of China, as provided for in U.S. note 20(c) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(d)
Import Tips
• Provide dielectric constant test data supporting performance claims
• Ensure formulation excludes conductive fillers
• Common misclassification as generic polysulfone 3911.90.55