HS Code for Laminated copper foil

Refined copper foil that is backed with other materials is classified under HS code 7410.21. To qualify for this code, the foil must be made of refined copper (typically 99.9% purity or higher) and have a thickness of 0.15mm or less, excluding the backing. The backing materials, such as plastics or paper, provide the necessary support for the copper layer, which is frequently used in the production of printed circuit boards (PCBs), electromagnetic interference (EMI) shielding, and various electronic components. The classification is determined by the purity of the copper and the presence of a secondary material layer. Because refined copper is highly conductive, this specific HS code is critical for the electronics supply chain, ensuring that high-purity conductive materials are tracked separately from alloys.

Products Included

• Refined copper foil laminated to polyimide for flexible circuits
• Copper foil backed with FR4 epoxy resin for rigid PCBs
• Refined copper foil with adhesive backing for EMI shielding tapes
• Paper-backed copper foil for architectural gilding

Common Misclassification

Common misclassifications include HS code 7410.11, which is for unbacked refined copper foil, and HS code 7410.22, which is for copper alloy foil. Additionally, if the copper foil has already been etched into a specific circuit pattern, it may be classified under 8534.00 as a printed circuit rather than as raw laminated foil.

FAQ

What is the HS code for laminated copper foil?

Laminated or backed foil made of refined copper is classified under HS code 7410.21.

How is refined copper defined for this HS code?

Refined copper refers to metal containing at least 99.85% by weight of copper, or copper with a minimum content of 97.5% provided no other element exceeds specific limits defined in Chapter 74 notes.