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HSChapter 74
U.S. imports of refined copper wire, cross-section over 6 mm (HS 740811) totaled $8.7M in April 2026, traded with 14 countries.
Importers of Refined Copper Wire, Cross-Section Over 6 mm paid $2.9M in duties in April 2026 — an effective duty rate of 50% on $5.9M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 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.
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.
Monthly import values over time
Supplier Network
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HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 7408116000 | RF CU WIRE, MAX CRSS-SCTNL DIMEN OV 6MM TO 9.5MM | $7.9M | 50.36% | $2.6M |
| 7408113000 | REF CU WIRE, MX CRS SCTN DIM OV 9.5MM | $763K | 46.11% | $352K |
RF CU WIRE, MAX CRSS-SCTNL DIMEN OV 6MM TO 9.5MM
REF CU WIRE, MX CRS SCTN DIM OV 9.5MM
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7408116000 | RF CU WIRE, MAX CRSS-SCTNL DIMEN OV 6MM TO 9.5MM | $44.9M |
| 7408113000 | REF CU WIRE, MX CRS SCTN DIM OV 9.5MM | $13.2M |
RF CU WIRE, MAX CRSS-SCTNL DIMEN OV 6MM TO 9.5MM
3.6M kg
REF CU WIRE, MX CRS SCTN DIM OV 9.5MM
1.0M kg
REFINED COPPER CATHODES AND SECTIONS OF CATHODES
HS 740311
COPPER WASTE AND SCRAP
HS 740400
TUBES & PIPES OF REFINED COPPER
HS 741110
COPPER ALLOY TUBE OR PIPE FITTINGS
HS 741220
COPPER FOIL, NOT BACKED, OF REFINED COPPER
HS 741011
BARS, RODS AND PROFILES OF REFINED COPPER
HS 740710
| Port | Imports | Exports | Balance |
|---|---|---|---|
| YSLETA, TX | -- | $29.2M | +$29.2M |
| LAREDO, TX | $165K | $12.8M | +$12.7M |
| ALEXANDRIA BAY, NY | $1.6M | $4.6M | +$3.0M |