Single-Sided CEM-1 Copper Clad Sheet from Canada
Copper foil laminated on one side to CEM-1 substrate (phenolic resin with glass mat and paper), thickness ≤0.15 mm. Falls under HTS 7410.21.3020 for refined copper foil backed with plastics-impregnated glass, having copper on one side only, ideal for low-cost single-layer printed circuits.
Duty Rate — Canada → United States
53%
Rate breakdown
9903.82.0250%Except as provided for in headings 9903.82.14, 9903.85.67 and 9903.85.68, articles of aluminum, of steel or of copper and derivative aluminum or steel articles, as provided for in subdivisions (c)(i)–(v) of U.S. note 16 to this subchapter
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Document substrate composition showing plastics fully impregnating glass fibers to comply with backing requirements
• Label clearly as 'single-sided' and measure foil thickness accurately to prevent duty reassessment
• Avoid shipping etched boards; plain laminates only under this code—processing changes classification