Chapter 7410 — Customs Tariff Headings

Battery Current Collector Copper Foil

Ultra-thin refined copper foil, 0.012 mm thick, unbacked, used as current collectors in lithium-ion batteries. Its refined copper composition and thickness under 0.15 mm qualify it for tariff item 7410.11.00.

Electrolytic Refined Copper Foil 0.1mm

Electrolytic refined copper foil, 0.1 mm thick, unbacked, used in flexible electronics and RF shielding. Its refined copper composition and thickness under 0.15 mm place it under tariff item 7410.11.00.

High Purity Refined Copper Foil for Heat Sinks

High-purity refined copper foil, 0.08 mm thick, unbacked, used for heat sink fins in electronics cooling. The refined copper composition and thickness under 0.15 mm qualify it for tariff item 7410.11.00.

HVAC Fin Stock Copper Foil

Refined copper foil, 0.11 mm thick, unbacked, used for microchannel heat exchanger fins in HVAC systems. Its refined copper composition and thickness under 0.15 mm make it classifiable under tariff item 7410.11.00.

Lab Grade Refined Copper Foil Sheets

Lab-grade refined copper foil sheets, 0.09 mm thick, unbacked, with 99.99% purity for laboratory electrochemistry. The refined copper composition and thickness under 0.15 mm qualify it for tariff item 7410.11.00.

Medical Sensor Copper Foil

Ultra-clean refined copper foil, 0.02 mm thick, unbacked, used for disposable medical sensors and ECG electrodes. Its refined copper composition and thickness under 0.15 mm place it under tariff item 7410.11.00.

Microwave Antenna Copper Foil

Specialized refined copper foil, 0.07 mm thick, unbacked, used for microwave antenna substrates and patches. The refined copper composition and thickness under 0.15 mm qualify it for tariff item 7410.11.00.

Precision Refined Copper Shimming Foil

Gauge-controlled refined copper foil, 0.10 mm thick, unbacked, used for precision shimming in machinery alignment. Its refined copper composition and thickness under 0.15 mm make it classifiable under tariff item 7410.11.00.

Refined Copper Etching Foil for PCBs

Thin refined copper foil, 0.035 mm thick, unbacked, used in printed circuit board manufacturing for etching conductive traces. The refined copper composition and thickness under 0.15 mm qualify it for tariff item 7410.11.00.

Refined Copper Foil for Decorative Laminates

Refined copper foil, 0.14 mm thick, unbacked, used for decorative surface laminates in furniture. Its refined copper composition and thickness under 0.15 mm place it under tariff item 7410.11.00.

Refined Copper Foil for EMI Shielding Tape

Thin refined copper foil, 0.05 mm thick, unbacked, used for EMI/RFI shielding tapes in consumer electronics. The refined copper composition and thickness under 0.15 mm qualify it for tariff item 7410.11.00.

Refined Copper Foil for Flexible Heaters

Thin refined copper foil, 0.03 mm thick, unbacked, etched for resistive heating elements in flexible heaters. Its refined copper composition and thickness under 0.15 mm make it classifiable under tariff item 7410.11.00.

RFID Antenna Copper Foil

Refined copper foil, 0.06 mm thick, unbacked, used for etching RFID tag antennas on smart labels. The refined copper composition and thickness under 0.15 mm qualify it for tariff item 7410.11.00.

Solar Cell Busbar Copper Foil

Refined copper foil, 0.13 mm thick, unbacked, perforated for photovoltaic solar cell busbars and ribbons. Its refined copper composition and thickness under 0.15 mm place it under tariff item 7410.11.00.

Unbacked Refined Copper Foil for Coinage Dies

Pure refined copper foil, 0.12 mm thick, unbacked, used for stamping coinage dies and medallions. The refined copper composition and thickness under 0.15 mm qualify it for tariff item 7410.11.00.

Admiralty Brass Foil 0.05mm

Admiralty brass foil, a copper-zinc-tin alloy, at 0.05mm thickness, unbacked, for marine heat exchanger applications. The tin content is below 3%, so it qualifies as a brass under the chapter's subheading notes, not a bronze. It falls under tariff item 7410.12.00 as a copper alloy foil not exceeding 0.15mm in thickness.

Brass Anode Foil 0.08mm

High-purity brass foil at 0.08mm thickness, unbacked, used as anode material in electroplating processes. The copper-zinc alloy composition qualifies it as a brass under the subheading notes, with zinc predominating over other elements. It falls under tariff item 7410.12.00 as a copper alloy foil not exceeding 0.15mm in thickness.

Brass Decorative Foil 0.03mm

Ultra-thin 0.03mm brass foil used for decorative inlays in furniture and art. The copper-zinc alloy qualifies as a brass, with zinc predominating over other elements, and it is unbacked. It falls under tariff item 7410.12.00 as a copper alloy foil not exceeding 0.15mm in thickness.

Brass Etching Foil 0.1mm

0.1mm thick brass foil from copper-zinc alloy, designed for chemical etching processes in electronics prototyping. The alloy composition qualifies it as a brass, with zinc predominating over other elements, and it is unbacked. It falls under tariff item 7410.12.00 as a copper alloy foil not exceeding 0.15mm in thickness.

Brass Foil 0.10mm Thickness

Thin brass foil, a copper-zinc alloy, at 0.10mm thickness, unbacked, used in precision gaskets and decorative laminates. The zinc content predominates over other elements, and it contains no nickel or tin, so it meets the definition of a copper-zinc base alloy (brass). It falls under tariff item 7410.12.00 as a copper alloy foil not exceeding 0.15mm in thickness.

Brass Gasket Foil 0.12mm

0.12mm brass foil from copper-zinc alloy, precision-cut for manufacturing thin gaskets in hydraulic systems. The alloy composition qualifies it as a brass, with zinc predominating over other elements, and it is unbacked. It falls under tariff item 7410.12.00 as a copper alloy foil not exceeding 0.15mm in thickness.

Brass Heat Transfer Foil 0.09mm

9-micron brass foil for heat exchanger manufacturing, made of copper-zinc alloy. The alloy composition qualifies it as a brass, with zinc predominating over other elements, and it is unbacked. It falls under tariff item 7410.12.00 as a copper alloy foil not exceeding 0.15mm in thickness.

Bronze Foil 0.08mm Sheet

Ultra-thin bronze foil, a copper-tin alloy, at 0.08mm thickness, unbacked, for electrical shielding and artistic inlays. The tin content predominates over other elements, and the zinc content is below 10%, so it qualifies as a copper-tin base alloy (bronze). It falls under tariff item 7410.12.00 as a copper alloy foil not exceeding 0.15mm in thickness.

Cartridge Brass Foil 0.11mm

Cartridge brass foil, a 70/30 copper-zinc alloy, at 0.11mm thickness, unbacked, used in precision ammunition casings and jewelry stamping. The zinc content predominates, with no nickel or tin, so it meets the definition of a copper-zinc base alloy (brass). It falls under tariff item 7410.12.00 as a copper alloy foil not exceeding 0.15mm in thickness.

Muntz Metal Foil 0.09mm

Muntz metal foil, a 60/40 copper-zinc alloy, at 0.09mm thickness, unbacked, for architectural decorative panels and marine hardware. The zinc content predominates over other elements, and it contains no nickel or tin, so it qualifies as a copper-zinc base alloy (brass). It falls under tariff item 7410.12.00 as a copper alloy foil not exceeding 0.15mm in thickness.

Naval Brass Foil 0.07mm

Naval brass foil, a copper-zinc-tin-manganese alloy, at 0.07mm thickness, unbacked, optimized for seawater resistance in propeller shafts. The tin content is below 3%, so it qualifies as a copper-zinc base alloy (brass) under the subheading notes. It falls under tariff item 7410.12.00 as a copper alloy foil not exceeding 0.15mm in thickness.

Nickel Silver Foil 0.12mm

Nickel silver foil, a copper-nickel-zinc alloy, at 0.12mm thickness, unbacked, for instrument manufacturing and decorative stamping. The nickel content is 5% or more by weight, so it qualifies as a copper-nickel-zinc base alloy (nickel silver) under the subheading notes. It falls under tariff item 7410.12.00 as a copper alloy foil not exceeding 0.15mm in thickness.

Phosphor Bronze Foil 0.03mm

Phosphor bronze foil, a copper-tin-phosphorus alloy, at 0.03mm thickness, unbacked, for electrical contacts and springs. The tin content predominates over other elements, and the phosphorus is a trace element, so it qualifies as a copper-tin base alloy (bronze). It falls under tariff item 7410.12.00 as a copper alloy foil not exceeding 0.15mm in thickness.

Red Brass Foil 0.04mm

Red brass foil, an 85/15 copper-zinc alloy, at 0.04mm thickness, unbacked, for flexible connectors and heat shields. The zinc content predominates over other elements, and it contains no nickel or tin, so it qualifies as a copper-zinc base alloy (brass). It falls under tariff item 7410.12.00 as a copper alloy foil not exceeding 0.15mm in thickness.

Yellow Brass Foil 0.13mm

Yellow brass foil, a 65/35 copper-zinc alloy, at 0.13mm thickness, unbacked, for musical instrument valves and decorative embossing. The zinc content predominates over other elements, and it contains no nickel or tin, so it qualifies as a copper-zinc base alloy (brass). It falls under tariff item 7410.12.00 as a copper alloy foil not exceeding 0.15mm in thickness.

Aluminum-Backed Copper Clad Laminate

Aluminum-backed copper clad laminate consisting of refined copper foil laminated to a thin aluminum substrate, used for metal-core PCBs in LED lighting. The copper foil is 0.15 mm or less in thickness, and the aluminum backing provides thermal management for high-power applications.

CEM-1 Copper Clad Board

CEM-1 copper clad board with refined copper foil cladding 0.15 mm or less on a cost-effective phenolic paper substrate, used for single-sided PCBs. The copper foil is backed by the CEM-1 material, which is a composite of paper and resin.

Copper Clad Invincible Laminate for RF

Specialty ceramic-filled laminate for RF applications with refined copper cladding 0.15 mm or less in thickness. The ceramic-filled polymer backing provides stable dielectric properties for high-frequency circuits.

Double-Sided 1.6mm FR4 Copper Clad Laminate

Double-sided 1.6mm FR4 copper clad laminate with refined copper foil on both sides, each foil layer 0.15 mm or less. The FR4 glass epoxy substrate provides mechanical strength and electrical insulation for PCB manufacturing.

FR-4 Copper Clad Laminate Sheet

FR-4 copper clad laminate sheet made from epoxy fiberglass substrate clad with thin refined copper foil on one or both sides, foil thickness under 0.15 mm excluding backing. Used as the base material for printed circuit boards.

High-Tg FR4 Copper Clad Laminate

High-Tg FR4 copper clad laminate with high glass transition temperature for lead-free soldering, clad with refined copper foil less than 0.15 mm. The high-Tg resin system provides thermal stability for demanding applications.

Polyimide Copper Clad Laminate

Polyimide copper clad laminate with high-temperature polyimide film backed with refined copper foil 0.15 mm or less, used for flexible PCBs. The polyimide backing provides flexibility and thermal resistance.

Rogers RO4000 Series Copper Clad Laminate

Rogers RO4000 series copper clad laminate with PTFE-based backing clad with refined copper foil less than 0.15 mm for RF/microwave PCBs. The low-loss backing material provides excellent high-frequency performance.

Single-Sided 0.8mm FR4 PCB Laminate

Thin 0.8mm FR4 copper clad laminate with copper on one side only over glass fabric impregnated with epoxy resin, foil less than 0.15 mm thick. Used for lightweight PCB applications.

Single-Sided 1.6mm FR4 Copper Laminate

Standard 1.6mm thick FR4 glass-epoxy laminate with 1 oz copper foil (35 µm) on one side only, total foil thickness less than 0.15 mm. The FR4 backing provides flame retardancy and mechanical strength.

Single-Sided 1oz FR4 Copper Clad Board

1 oz (35 micron) copper foil on one side of FR4 glass cloth/epoxy board, excluding backing less than 0.15 mm. The FR4 substrate provides electrical insulation and mechanical support for PCB production.

Single-Sided 7628 Glass Cloth Copper Clad

Heavy 7628 glass cloth style impregnated with epoxy, clad with refined copper on one side only, foil thickness 0.15 mm or less. The glass cloth backing provides high mechanical strength for PCB applications.

Single-Sided CEM-1 Copper Clad Sheet

Copper foil laminated on one side to CEM-1 substrate (phenolic resin with glass mat and paper), thickness 0.15 mm or less. The CEM-1 backing provides a cost-effective base for single-sided PCBs.

Single-Sided Copper Clad Laminate Panel

Single-sided copper clad laminate panel with epoxy laminate base and refined copper foil on one side only, thickness 0.15 mm or less, cut to size for PCB fabrication. The epoxy backing provides insulation and mechanical support.

Thin Flex Copper Clad Polyimide Laminate

Ultra-thin polyimide copper clad laminate for flexible circuits, with refined copper foil 0.15 mm or less and adhesive backing. The polyimide film provides flexibility and thermal stability for dynamic applications.

Brass Circuit Foil with PET Backing

Pre-printed brass foil (copper-zinc alloy) 0.14 mm thick with a PET plastic backing, used for PCB prototyping. The foil is backed and the copper alloy content qualifies it under tariff item 7410.22.00, which covers backed copper alloy foil not exceeding 0.15 mm in thickness (excluding backing).

Brass Decorative Foil Laminated Paperboard

Printed brass foil (copper-zinc alloy) 0.09 mm thick laminated to paperboard for book covers and packaging. The foil is backed with paperboard and the copper alloy composition places it under tariff item 7410.22.00, which covers backed copper alloy foil not exceeding 0.15 mm in thickness (excluding backing).

Brass Foil Backed with Paper

Thin brass foil (copper-zinc alloy) of 0.12 mm thickness, backed with paper for electrical insulation applications. The product is a backed copper alloy foil not exceeding 0.15 mm in thickness (excluding backing), falling under tariff item 7410.22.00.

Brass Foil Paper Backed for Crafts

Thin brass foil (0.04 mm) paper backed sheets for arts and crafts embossing. The copper-zinc alloy foil is backed with paper and does not exceed 0.15 mm in thickness (excluding backing), placing it under tariff item 7410.22.00.

Brass Foil with Paperboard for Gaskets

Brass foil (0.10 mm) backed with paperboard for composite gasket material. The copper-zinc alloy foil is backed and does not exceed 0.15 mm in thickness (excluding backing), falling under tariff item 7410.22.00.

Bronze Foil Backed for RFI Shielding

Bronze foil (copper-tin alloy) with plastic backing for RFI/EMI shielding gaskets, with a maximum thickness of 0.15 mm (excluding backing). The copper-tin base alloy qualifies under tariff item 7410.22.00 for backed copper alloy foil.

Bronze Foil with Plastic Backing

Bronze foil (copper-tin alloy, 0.10 mm thick) backed with plastic film for flexible circuit boards. The copper-tin base alloy, with tin predominant over other elements, falls under tariff item 7410.22.00 as backed copper alloy foil not exceeding 0.15 mm in thickness (excluding backing).

Copper Alloy Foil Composite Backing

Generic copper alloy (brass) foil 0.12 mm with composite paper/plastic backing for shielding. The copper-zinc alloy foil is backed and does not exceed 0.15 mm in thickness (excluding backing), falling under tariff item 7410.22.00.

Copper-Nickel Foil with Polymer Backing

Copper-nickel base alloy foil (0.11 mm) backed with polymer film for corrosion-resistant laminates. The copper-nickel alloy, with nickel predominant and zinc content not exceeding 1%, falls under tariff item 7410.22.00 as backed copper alloy foil not exceeding 0.15 mm in thickness (excluding backing).

Nickel Brass Hybrid Foil Backed

Copper-zinc-nickel alloy foil (borderline brass/nickel silver, 0.09 mm) with plastic backing. The alloy composition determines classification as a copper alloy, and the backed foil not exceeding 0.15 mm in thickness (excluding backing) falls under tariff item 7410.22.00.

Nickel Silver Foil Paper-Backed

Copper-nickel-zinc alloy (nickel silver) foil, 0.08 mm thick, backed with paperboard for decorative laminates. The nickel content is 5% or more, classifying it as a copper alloy, and the backed foil not exceeding 0.15 mm in thickness (excluding backing) falls under tariff item 7410.22.00.

Nickel Silver Printed Foil Plastic Backed

Etched nickel silver foil (0.07 mm) with plastic backing for membrane switches. The copper-nickel-zinc alloy, with nickel content of 5% or more, is a copper alloy, and the backed foil not exceeding 0.15 mm in thickness (excluding backing) falls under tariff item 7410.22.00.

Phosphor Bronze Flexible Foil PET Laminated

Flexible phosphor bronze foil (0.06 mm) PET laminated for bellows material. The copper-tin-phosphorus alloy, with tin predominant, is a copper alloy, and the backed foil not exceeding 0.15 mm in thickness (excluding backing) falls under tariff item 7410.22.00.

Phosphor Bronze Foil Adhesive Backed

Phosphor bronze foil (Cu-Sn-P alloy, 0.05 mm thick) with adhesive plastic backing for shielding tapes. The copper-tin alloy, with tin predominant, is a copper alloy, and the backed foil not exceeding 0.15 mm in thickness (excluding backing) falls under tariff item 7410.22.00.