Single-Sided CEM-1 Copper Clad Sheet from Mexico
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 — Mexico → 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
• 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