High-Tg Bismaleimide Resin Flakes from China
Flake-form bismaleimide-triazine copolymer per exact chemical specification of HTS 3911.90.35.00, in primary form for composite prepreg production. Offers Tg >250°C for demanding telecom applications. Aromatic monomer content exceeds 95% threshold per subheading note.
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
• Document flake form qualifies as 'primary forms' not plates/sheets
• Verify no fiber reinforcement present
• Watch for reclassification as 3911.90.55 if minor formulation changes