FR-4 Copper Clad Laminate Sheet from Japan
A rigid laminate sheet made from FR-4 epoxy fiberglass substrate clad with thin refined copper foil on one or both sides, thickness under 0.15 mm excluding backing. Classified under HTS 7410.21.30 as copper foil backed with insulating material forming copper clad laminates for PCB production. Meets chapter definitions for refined copper foil backed with plastics-like substrate.
Duty Rate — Japan → United States
13%
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
Import Tips
• Verify copper foil thickness excludes backing and is ≤0.15mm; measure substrate separately to confirm classification
• Provide mill test certificates proving refined copper purity and laminate specs to avoid reclassification as unfinished PCBs