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U.S. exports of refined copper wire, cross-section 6 mm and under (HS 740819) totaled $19.8M in July 2026.
Importers of Refined Copper Wire, Cross-Section 6 mm and Under paid $4.8M in duties in July 2026 — an effective duty rate of 58% on $8.4M in dutiable value, based on actual customs collections rather than the published tariff schedule. Refined Copper Wire, Cross-Section 6 mm and Under imports of $14.2M in July 2026 ran 22% above the year-to-date monthly average of $11.7M.
Last updated: July 2026 dataFine and medium refined copper wire—at or below 6 mm in maximum cross-sectional dimension—is one of the most widely traded copper mill products, serving winding wire, automotive wiring harnesses, electronics, and telecommunications cable manufacturing. The US schedule provides three lines: wire 3 mm or less (7408190030), other refined copper wire (7408190060), and a legacy catch-all (7408190000). Canada leads US imports, with China and Thailand also major sources; China's presence makes Section 301 tariff exposure a live compliance issue that importers must monitor for applicable exclusions. The fine-wire segment is particularly sensitive to copper cathode price volatility, as the conversion premium over cathode is relatively thin.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
129 shipments/mo
Wire with a maximum cross-sectional dimension of 3 mm or less is specifically provided for at 7408190030, while wire above 3 mm but not over 6 mm falls under 7408190060. Importers should obtain dimensional specifications from the manufacturer and confirm them against the invoice description. For drawn wire sold in mixed coil sizes, each size may need to be classified separately if the dimensions straddle the threshold.
Refined copper wire from China may be subject to Section 301 tariffs under the applicable list. The scope, rate, and any product-specific exclusions can change, and exclusions that were previously granted may have expired. Importers sourcing from China should verify the current Section 301 status of their specific product with a licensed customs broker before each shipment to avoid unexpected duty liability.
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Subheading 2 of 5 in heading 7408
Subheading 740819 · $14.2M of $66.8M
ImportsExports
Imports
$14.2MYoY · Pro
Exports
$19.8MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 7408190030 | Ref Cu Wire W Max Crs-Sctn Dimensn of 3mm or Less | $11.4M | 27.05% | 49.64% | $3.1M |
| 7408190060 | Refined Copper Wire, NESOI | $2.9M | 61.82% | 96.31% | $1.8M |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7408190000 | Ref Cu Wire W Max Crs-Sctn Under 6 Mm | $19.8M |
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 · July 2026
destination
Mexico and Canada together take 90% of it.
customs district
origin
entry
rate provision · imports
40.5% enters free of duty; the effective duty rate is 34.05%.