U.S. exports of Refined Copper Wire, Cross-Section Over 6 mm (HS 740811) totaled $69.9M in August 2026.
Importers of Refined Copper Wire, Cross-Section Over 6 mm paid $2.8M in duties in August 2026, an average duty rate of 14.97% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 2026 dataLarge-diameter refined copper wire—with a maximum cross-sectional dimension exceeding 6 mm—is the primary feedstock for electrical power distribution conductors, winding wire for large motors and transformers, and grounding systems. The heading splits into wire over 9.5 mm (7408113000) and wire from over 6 mm to 9.5 mm (7408116000), a distinction that aligns with industry rod-rolling and drawing standards. Canada and Mexico are the leading suppliers, with Chile also a significant source, reflecting integrated North American copper production and Chile's position as the world's largest copper-mining nation. These products may be subject to Section 232 tariff considerations; importers should confirm current applicability with a licensed customs broker.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
112 import shipments a month
The 6 mm threshold is the dividing line: wire with a maximum cross-sectional dimension over 6 mm classifies under 7408.11, while wire at or below 6 mm falls under 7408.19. This distinction matters because the two headings may carry different duty rates and are tracked separately in trade statistics. For wire near the boundary, importers should obtain dimensional certification from the manufacturer to support the correct classification.
Large-diameter refined copper wire is predominantly traded to specification—buyers specify conductivity grade (typically ETP or OF copper), diameter tolerance, surface condition, and coil weight. ASTM B49 (rod for electrical purposes) and IEC 60028 are common reference standards. Because the product is often produced to order, lead times and minimum order quantities can affect supply-chain planning, particularly when sourcing from non-North American suppliers.
Subheading 1 of 5 in heading 7408
Subheading 740811 · $69.9M of $105.3M
ImportsExports
Imports
$21.8MYoY · free account
Exports
$69.9MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $193.1M of Refined Copper Wire, Cross-Section Over 6 mm and exported $851.4M.
Through August 2026. Source: U.S. Census Bureau.
Trade Directory
List your company under HS 740811 — Refined Copper Wire, Cross-Section Over 6 mm, so the companies trading it can find you. Be the first supplier listed.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 7408116000 | Rf Cu Wire, Max Crss-Sctnl Dimen Ov 6mm to 9.5mm | $18.1M | 13.32% | 25.13% | $2.4M |
| 7408113000 | Ref Cu Wire, Mx Crs Sctn Dim Ov 9.5mm | $850K | 50.22% | 100.00% | $427K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7408116000 | Rf Cu Wire, Max Crss-Sctnl Dimen Ov 6mm to 9.5mm | $58.6M |
| 7408113000 | Ref Cu Wire, Mx Crs Sctn Dim Ov 9.5mm | $11.2M |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
Exports · August 2026
destination
Mexico and Canada together take 99% of it.
customs district
origin
entry
rate provision · imports
62.2% enters free of duty; duty collected equals 14.97% of imports for consumption.