Phenolic Resin Circuit Board Substrate from China
Thin, noncellular phenolic resin sheets serving as base substrates for printed circuit boards before copper lamination. Classified under HTS 3920.94.00.00 as unreinforced phenolic sheets, not yet combined with metal layers.
Duty Rate — China → United States
40.8%
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
• Declare as 'paper phenolic' if paper-impregnated, but pure resin sheets stay here
• Include FTIR spectroscopy to prove phenolic resin composition per Chapter 39 notes