Low-K Dielectric Cyanate Ester from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide dielectric constant test data supporting performance claims
• Ensure formulation excludes conductive fillers
• Common misclassification as generic polysulfone 3911.90.55