U.S. imports of Refined Copper Billets, Unwrought (HS 740313) totaled $11.9M in August 2026, imported from 4 countries.
Importers of Refined Copper Billets, Unwrought paid $6K in duties in August 2026, an average duty rate of 0.05% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Refined Copper Billets, Unwrought imports of $11.9M in August 2026 ran 239% above the year-to-date monthly average of $3.5M.
Last updated: August 2026 dataRefined copper billets are cylindrical or round-section cast forms fed directly to extrusion presses to produce copper tube, rod, and profiles — making them a key intermediate for the plumbing, HVAC, and electrical conduit industries. Germany and Japan lead US import supply, reflecting the precision casting capabilities of European and Japanese copper producers that serve specialty extrusion markets. Classified under the single line 7403130000, billets must be distinguished from wire bars (740312) and from wrought copper rod or profiles, which would fall in later headings once they have been worked.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
42 import shipments a month
A billet remains 'unwrought' under heading 7403 as long as it has not been worked by extrusion, rolling, drawing, or forging. Once it has been extruded into tube, rod, or a profile — even if cut to length — it crosses into the wrought copper headings (7407 for rod/bar, 7411 for tube, etc.). The key test is whether the article retains the as-cast grain structure or has been mechanically worked to alter its shape and properties.
Copper billets require controlled casting to meet tight dimensional and metallurgical tolerances demanded by precision extrusion operations. Germany and Japan have established copper fabrication industries with the casting technology to produce billets to exacting specifications, whereas primary mining nations typically export cathodes or rod rather than specialty cast forms.
Subheading 3 of 7 in heading 7403
Subheading 740313 · $11.9M of $2.8B
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 |
|---|---|---|---|---|---|
| 7403130000 | Billets, Refined Copper, Unwrought | $11.9M | 0.05% | 5.22% | $6K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7403130000 | Billets, Refined Copper, Unwrought | $488K |
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.
Trade Directory
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ImportsExports
Imports
$11.9MYoY · free account
Exports
$488KYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $33.3M of Refined Copper Billets, Unwrought and exported $2.6M.
Through August 2026 · exports 9 of 12 months reported. Source: U.S. Census Bureau.
Imports · August 2026
origin
Canada and Japan together supply 96% of it.
customs district
destination
entry
rate provision · imports
94.8% enters free of duty; duty collected equals 0.05% of imports for consumption.