HTS heading 7403 · Chapter 74, Copper and articles of copper
US imports of Refined copper and copper alloys, unwrought
Refined copper and copper alloys, unwrought (other than master alloys of heading 7405)
Source: U.S. Census Bureau, USA Trade Online / International Trade API, imports for consumption, March–July 2026; effective duty = calculated duty ÷ dutiable value.
US imports under HTS 7403 at a glance
Between March and July 2026, US importers entered $8.13 billion of refined copper and copper alloys, unwrought under HTS heading 7403, from 29 of the 55 origin countries covered here and across 8 ten-digit tariff lines — roughly $1.63 billion a month of customs value under a single four-digit heading.
Heading 7403 sits in chapter 74, copper and articles of copper, so anything classified here shares a duty structure with the rest of that chapter.
Top origin countries by share of HTS 7403
Origin countries: value, share and duty paid
| Origin | Import value | Share | Dutiable share | Effective duty | Duty per $100 | Detail |
|---|---|---|---|---|---|---|
| Chile | $5.19 billion | 63.9% | 0.1% | 1% | $0.00 | Duty on 7403.11.00 |
| Canada | $995 million | 12.2% | 0% | 1% | $0.00 | |
| Peru | $581 million | 7.2% | 1.4% | 1% | $0.01 | Duty on 7403.11.00 |
| South Korea | $288 million | 3.5% | 4.8% | 1.04% | $0.05 | Duty on 7403.11.00 |
| Germany | $287 million | 3.5% | 84.6% | 1.03% | $0.87 | Duty on 7403.11.00 |
| Mexico | $287 million | 3.5% | 0% | 3.11% | $0.00 | |
| Poland | $203 million | 2.5% | 100% | 1% | $1.00 | Duty on 7403.11.00 |
| Japan | $149 million | 1.8% | 82.2% | 1% | $0.82 | Duty on 7403.11.00 |
| Belgium | $74.6 million | 0.9% | 100% | 1% | $1.00 | Duty on 7403.11.00 Belgium lane |
| Australia | $37.1 million | 0.5% | 0.2% | 9.06% | $0.02 | Duty on 7403.11.00 |
| Spain | $22.2 million | 0.3% | 99.9% | 1% | $1.00 | Duty on 7403.11.00 |
| Finland | $4.9 million | 0.1% | 52.2% | 1% | $0.52 | Duty on 7403.13.00 |
| India | $1.9 million | 0% | 99.5% | 2.82% | $2.81 | Duty on 7403.22.00 India lane |
| Turkey | $1.4 million | 0% | 91.7% | 2.63% | $2.41 | Duty on 7403.29.01 |
| China | $1.1 million | 0% | 100% | 26.49% | $26.49 | Duty on 7403.11.00 China lane |
Who exports refined copper and copper alloys, unwrought to the United States
Chile supplies 63.9% of everything entered under this heading — $5.19 billion over the five months — which makes this a single-source market in practice. Canada is a distant second at 12.2%, then Peru at 7.2%. When one origin carries this much of a heading, a tariff action aimed at that country moves the landed cost of the whole category rather than shifting share between suppliers.
Canada and Mexico sit near the top of the table, and the duty numbers reflect it: Canada entered 100% of its value free of duty and Mexico entered 100% of its value free of duty. Cargo that qualifies under USMCA and is claimed correctly at entry pays nothing; cargo that does not qualify, or that is never claimed, pays the ordinary rate. The certification is the whole difference.
What importers actually paid in duty
Most of this heading enters duty-free. Only 8.6% of the entered value was dutiable, and across all origins CBP collected $7.5 million — about $0.09 of duty per $100 of goods. The headline rate on the dutiable portion was 1.1%, but it applies to a small slice, so the number that matters to a landed-cost model is the $0.09.
The spread between origins is real. Among origins with at least 2% of the heading, Poland paid the most duty relative to value — $1.00 per $100 — while Chile paid $0.00. On a $250,000 purchase order that gap is about $3,000 in duty alone, which is worth pricing into a sourcing decision rather than discovering on the entry summary.
10-digit tariff lines under HTS 7403
| HTS code | Description | Import value | Share | Duty per $100 | Largest origin |
|---|---|---|---|---|---|
| 7403.11.00.00 | — | $7.99 billion | 98.3% | $0.08 | Chile |
| 7403.21.00.00 | — | $64.3 million | 0.8% | $0.13 | Canada |
| 7403.19.00.00 | — | $44.7 million | 0.6% | $1.10 | Germany |
| 7403.13.00.00 | — | $13.8 million | 0.2% | $0.76 | Finland |
| 7403.29.01.80 | Other | $4.7 million | 0.1% | $1.48 | Japan |
| 7403.22.00.00 | — | $3.9 million | 0.1% | $2.95 | India |
| 7403.29.01.10 | Copper-nickel base alloys (cupro-nickel) or copper-nickel-zinc base alloys (nickel silver) | $2.5 million | 0% | $0.40 | Germany |
| 7403.12.00.00 | — | $11,000 | 0% | $12.82 | France |
Source: U.S. Census Bureau, USA Trade Online / International Trade API, imports for consumption, March–July 2026; effective duty = calculated duty ÷ dutiable value.
The 10-digit lines under heading 7403
8 ten-digit lines carried trade under this heading in the period. The largest, 7403.11.00.00, took 98.3% of the heading at $7.99 billion. 7403.21.00.00, 7403.19.00.00 and 7403.13.00.00 follow. Rates diverge between those lines, so the classification your broker files is worth checking against the goods rather than carried over from the last entry.
What the duty stack looks like
The rate on an entry is not one number. It is a stack: the general (column 1) rate for the 10-digit line, less any trade-agreement preference the goods qualify for, plus whatever additional duties apply to that product and origin, all applied to the customs value declared. The $0.09 per $100 above is what that stack averaged across every entry in this heading — a benchmark, not a quote.
For the origins carrying the most volume, the per-country breakdowns go a level deeper: Chile (7403.11.00), Peru (7403.11.00) and South Korea (7403.11.00). To price a specific shipment, put your 10-digit code and country of origin into the tariff simulator.
What this means for your next shipment
Classify first, confirm origin second, quote freight third. A heading like 7403 rewards that order, because the duty differences between lines and between origins are usually larger than the freight differences on the same lane. Airlift USA handles the freight and coordinates classification and entry through our licensed broker network.
For the operational side rather than the tariff side, see the Metals & Fabricated Industrial Goods guide for how this cargo moves and the heading index to compare against the rest of chapter 74.
Price a shipment under HTS 7403
Airlift USA has moved ocean and air freight into the United States since 1999 and coordinates HTS classification, ISF and entry filing through our licensed broker network.
Methodology
Figures come from the U.S. Census Bureau's international trade statistics for imports for consumption — the customs value of goods entered into US commerce, not shipments in transit or goods held in bonded warehouses. The period is March–July 2026 (5 months of data), and coverage is limited to 55 major origin countries, so totals here are lower than published US-wide totals for the same heading.
Three quantities are additive and everything else is derived from them: entered customs value, dutiable value and calculated duty. Effective duty is calculated duty divided by dutiable value — the rate CBP actually applied to the part of the trade that was dutiable. Dutiable share is dutiable value divided by entered value; below 20% it means the trade entered mostly free, under a trade agreement or a duty-free provision. Duty per $100 spreads calculated duty across all entered value, which is the figure comparable between origins.
Chapter 98 and chapter 99 are excluded: those are special classification and temporary-measure provisions rather than product headings. Heading and tariff-line descriptions are the current HTS text. Values are historical and reflect duty as calculated at the time of entry; they are not a quote and not a prediction of the rate on a future shipment.
Source: U.S. Census Bureau, USA Trade Online / International Trade API, imports for consumption, March–July 2026; effective duty = calculated duty ÷ dutiable value. Census data is a work of the US government and is in the public domain.
Frequently asked questions
Which countries export the most refined copper and copper alloys, unwrought to the United States?
Chile is the largest origin under HTS heading 7403, with $5.19 billion entered between March and July 2026, or 63.9% of the heading. Canada follows at 12.2% and Peru at 7.2%. Figures cover the 55 major origin countries in this dataset. Source: U.S. Census Bureau, USA Trade Online / International Trade API, imports for consumption, March–July 2026; effective duty = calculated duty ÷ dutiable value.
How much import duty is paid on refined copper and copper alloys, unwrought under HTS 7403?
Across all origins, 8.6% of the entered value was dutiable and CBP calculated $7.5 million of duty over the five months — an effective 1.1% on dutiable value, or about $0.09 per $100 of goods across the whole heading. Your own rate depends on the exact 10-digit line and country of origin.
Which HTS codes fall under heading 7403?
Heading 7403 covers refined copper and copper alloys, unwrought (other than master alloys of heading 7405). 8 ten-digit lines recorded imports in this period; the largest by value were 7403.11.00.00, 7403.21.00.00, 7403.19.00.00 and 7403.13.00.00. Duty rates differ between those lines, so the 10-digit classification matters more than the heading.
Which origin pays the lowest duty on refined copper and copper alloys, unwrought?
Among origins with at least 2% of the heading, Chile paid the least duty relative to entered value — about $0.00 per $100 of goods, with 99.9% of its value entering free. Duty is only one part of landed cost, and a claim has to be substantiated at entry to be allowed.
How do I check the duty on my own shipment?
Use the Airlift USA tariff simulator with your 10-digit HTS code and country of origin to see the duty stack that applies today, then confirm the classification before you file. Airlift USA coordinates classification and entry filing through our licensed broker network and can review the code against your product specification.