HS code · 6-digit subheading
HS Code 7403.21 – Copper; copper-zinc base alloys (brass) unwrought
HS code 7403.21 is the 6-digit subheading for copper, copper-zinc base alloys (brass) unwrought. It is used for brass ingots, brass billets, brass wire-bars, brass slabs and brass granules.
What HS 7403.21 covers
HS 740321 covers unwrought copper-zinc base alloys, commonly known as brass. Brass is a versatile alloy prized for its malleability, acoustic properties, corrosion resistance, and attractive appearance. In its unwrought form, such as ingots, billets, or slabs, it serves as the primary raw material for a wide range of manufacturing processes, including casting, extrusion, and rolling into sheets, rods, and tubes. These materials are then used to produce plumbing fixtures, musical instruments, decorative items, electrical connectors, and automotive parts. The global trade in unwrought brass is significant, driven by industries requiring a durable and workable alloy. Major importers are typically industrial countries with strong manufacturing sectors, while exporters are often specialized alloy producers or large foundries.
- Covers
- Brass ingots
- Brass billets
- Brass wire-bars
- Brass slabs
- Brass granules
- Yellow brass ingots
- Red brass ingots
- Examples
- Wieland brass ingots
- KME Group brass billets
- Mueller Industries brass alloys
Codes often confused with 7403.21
Common mistake. This code is specifically for unwrought brass alloys; it should not be confused with wrought brass products (e.g., 7407 for bars/rods) or other unwrought copper alloys (740322, 740329).
Top exporters and importers of HS code 740321, 2025
In 2025, the largest exporter of HS code 740321 in UN Comtrade data was the Netherlands, with 12% of world exports; the largest importer in UN Comtrade data was China, with 65% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Top exporters 2025 · share of world exports
- 1 Netherlands $204M 12% of world exports
- 2 Canada $135M 7.9% of world exports
- 3 South Korea $120M 7.0% of world exports
World total: $1.7B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 China $996M 65% of world imports
- 2 United States $136M 9.0% of world imports
- 3 Italy $56M 3.7% of world imports
World total: $1.5B Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries that did not report are estimated from what other countries recorded trading with them. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM code for 7403.21
Brazil does not split HS 7403.21: its NCM code is 7403.21.00.
All Brazil NCM codes in heading 74.03 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 7403.21
What is HS code 740321?
HS code 740321 is a 6-digit subheading in the Harmonized System that covers: Copper; copper-zinc base alloys (brass) unwrought. HS 740321 covers unwrought copper-zinc base alloys, commonly known as brass. Brass is a versatile alloy prized for its malleability, acoustic properties, corrosion resistance, and attractive appearance. In its unwrought form, such as ingots, billets, or slabs, it serves as the primary raw material for a wide range of manufacturing processes, including casting, extrusion, and rolling into sheets, rods, and tubes. These materials are then used to produce plumbing fixtures, musical instruments, decorative items, electrical connectors, and automotive parts. The global trade in unwrought brass is significant, driven by industries requiring a durable and workable alloy. Major importers are typically industrial countries with strong manufacturing sectors, while exporters are often specialized alloy producers or large foundries.
What products fall under HS code 740321?
Brass ingots, brass billets, brass wire-bars, brass slabs, brass granules, yellow brass ingots, red brass ingots
What are common misclassifications for HS code 740321?
This code is specifically for unwrought brass alloys; it should not be confused with wrought brass products (e.g., 7407 for bars/rods) or other unwrought copper alloys (740322, 740329).
Which countries are the top exporters of goods under HS code 740321?
In 2025, the top exporters of HS code 740321 in UN Comtrade data were the Netherlands ($204M, 12% of world exports), Canada ($135M) and South Korea ($120M). World exports came to about $1.7B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of goods under HS code 740321?
In 2025, the top importers of HS code 740321 in UN Comtrade data were China ($996M, 65% of world imports), the United States ($136M) and Italy ($56M). World imports came to about $1.5B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
How is HS code 740321 structured?
HS code 740321 is a 6-digit subheading under the Harmonized System. The first 2 digits (74) identify the chapter, digits 3-4 (03) identify the heading, and digits 5-6 (21) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 740321?
In Brazil, HS code 740321 is NCM 7403.21.00. The last two digits are 00 because Brazil does not split this HS code further.