CEM-1 Copper Clad Board from Mexico
Copper clad laminate using cost-effective CEM-1 phenolic paper substrate with refined copper foil cladding ≤0.15mm, for single-sided PCBs. HTS 7410.21.30 covers these paper/plastics-backed refined copper foils as copper clad laminates.
Duty Rate — Mexico → 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 copper weight (e.g
• 1oz/ft²) and substrate type; customs may test for paper vs. pure plastic backing
• Avoid 'double-sided PCB' labeling; declare as 'unfinished copper clad laminate' to stay in Chapter 74