Novolac Phenolic Resin from China
Novolac phenolic resin is a thermosetting polymer produced by reacting phenol with formaldehyde under acidic conditions, requiring a hardener for curing. It falls under HTS 3909.40.00.00 as a phenolic resin in primary form, typically supplied as granules or powder for molding compounds. Used primarily in electrical insulators and abrasives due to its heat resistance.
Duty Rate — China → United States
41.5%
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
• Verify monomer composition meets 95% phenol-formaldehyde content per subheading notes to avoid reclassification
• Provide supplier certificates confirming primary form (not compounded)
• Watch for chemical modifications that could shift to 'Other' subheadings