Product classification

HS code for Laminated copper foil: 7410.21

Copper, foil, backed with paper, paperboard, plastics or similar backing material, of a thickness (excluding any backing) not exceeding 0.15mm, of refined copper.

Classification of laminated copper foil under HS 7410.21

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.

Covers
  • 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
Also under 7410.21
  • 3M Copper Foil Tape
  • Nitto Denko Copper Foil
  • Rogers Corporation RT/duroid laminates
  • Panasonic Copper Clad Laminates

Codes often confused with 7410.21

Common mistake. 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.

7410.11Copper; foil, not backed, of a thickness not exceeding 0.15mm, of refined copper7410.22Copper; foil, backed with paper, paperboard, plastics or similar backing material, of a thickness (excluding any backing) not exceeding 0.15mm, of copper alloys8534.00Circuits; printed

Top exporters and importers of HS 741021 (the code used for laminated copper foil), 2025

In 2025, the largest exporter of HS 741021 (the code used for laminated copper foil) in UN Comtrade data was Taiwan, with about 22% of world exports; the largest importer in UN Comtrade data was China, with 42% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.

Figures cover everything classified under HS 741021, not only laminated copper foil.

Top exporters 2025 · share of world exports

  1. 1 Taiwan* ~$810M
  2. 2 China $791M
  3. 3 South Korea $738M

World total: $3.6B Reported figures on UN Comtrade ↗

Top importers 2025 · share of world imports

  1. 1 China $1.6B
  2. 2 South Korea $425M
  3. 3 Taiwan* ~$378M

World total: $3.7B Reported figures on UN Comtrade ↗

How these figures are built

109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries marked * did not, so their figures add up what other countries recorded trading with them, and their exports are valued at buyers' CIF prices. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. UN Comtrade records Taiwan as "Other Asia, not elsewhere specified". Saudi Arabia's exports under that code are left out: they are far too large to be trade with Taiwan, so mostly undisclosed partners. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).

Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.

Brazil NCM codes for laminated copper foil

Brazil splits HS 7410.21 into 4 NCM codes. Pick the one that matches your product:

  • 7410.21.10Copper foil on epoxy-glass for printed circuits
  • 7410.21.20Copper foil on polyester or polyimide backing
  • 7410.21.30Copper foil on phenolic paper for printed circuits
  • 7410.21.90Other backed refined copper foil

Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.

Questions about laminated copper foil

What is the HS code for Laminated copper foil?

The HS code for Laminated copper foil is 741021 (Copper; foil, backed with paper, paperboard, plastics or similar backing material, of a thickness (excluding any backing) not exceeding 0.15mm, of refined copper). Laminated or backed foil made of refined copper is classified under HS code 7410.21.

How do I classify Laminated copper foil for customs?

Laminated copper foil is classified under HS code 741021 — Copper; foil, backed with paper, paperboard, plastics or similar backing material, of a thickness (excluding any backing) not exceeding 0.15mm, of refined copper. This is a 6-digit subheading level code.

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.

Which countries are the top exporters of laminated copper foil (HS 741021)?

In 2025, the top exporters of HS 741021 (the code used for laminated copper foil) in UN Comtrade data were Taiwan (about $810M, 22% of world exports), China ($791M) and South Korea ($738M). World exports came to about $3.6B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.

Which countries are the top importers of laminated copper foil (HS 741021)?

In 2025, the top importers of HS 741021 (the code used for laminated copper foil) in UN Comtrade data were China ($1.6B, 42% of world imports), South Korea ($425M) and Taiwan (about $378M). World imports came to about $3.7B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.

Is the HS code for Laminated copper foil the same in all countries?

The base HS code 741021 for Laminated copper foil is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.

What is the NCM code for laminated copper foil in Brazil?

Brazil splits HS 741021 into 4 NCM codes, so the right one for laminated copper foil depends on the product's details: 7410.21.10 (Copper foil on epoxy-glass for printed circuits), 7410.21.20 (Copper foil on polyester or polyimide backing), 7410.21.30 (Copper foil on phenolic paper for printed circuits), 7410.21.90 (Other backed refined copper foil).