HS code 7403.21: Copper alloys, copper-zinc base alloys (brass)
Last updated
Key facts
- HS code
- 7403.21
- Covers
- Copper alloys, copper-zinc base alloys (brass)
- Edition
- HS2022
- Duty rates
- Set by each country’s tariff
Summary
HS code 7403.21 covers copper alloys, copper-zinc base alloys (brass). It sits in heading 74.03 (refined copper and copper alloys, unwrought) in chapter 74 (copper and articles thereof). Other goods of heading 74.03 are classified under 7403.11 (refined copper, cathodes and sections of cathodes), 7403.12 (refined copper, wire-bars), 7403.13 (refined copper, billets), 7403.19 (refined copper, other) or 2 others.
What this code covers
HS code 7403.21 covers copper alloys, copper-zinc base alloys (brass).
The legal text of the subheading is “Copper alloys: Copper-zinc base alloys (brass)”, read under “Copper alloys”, in HS2022.
What it doesn’t cover
Other goods of heading 74.03 are classified under 7403.11 (refined copper, cathodes and sections of cathodes), 7403.12 (refined copper, wire-bars), 7403.13 (refined copper, billets), 7403.19 (refined copper, other) or 2 others.
How it is structured
7403.21 is a six-digit subheading. Its first two digits, 74, are the chapter; the first four, 7403, are heading 74.03; the last two, 21, identify the subheading within the heading.
Countries add their own digits after these six for their national tariff lines.
- Chapter 74
- Copper and articles thereof
- Heading 74.03
- Refined copper and copper alloys, unwrought
- Within the heading
- Copper alloys
- Subheading 7403.21
- Copper-zinc base alloys (brass)
In other countries
No national tariff lines under 7403.21 are live on border.bot yet. Tariffs built on the Harmonized System (HS2022) use 7403.21 at six digits and add their own digits after it.
Frequently asked questions
What does HS code 7403.21 cover?
HS code 7403.21 covers copper alloys, copper-zinc base alloys (brass).
Which heading and chapter is HS code 7403.21 in?
HS code 7403.21 is in heading 74.03 (refined copper and copper alloys, unwrought) in chapter 74 (copper and articles thereof).
Where are goods of heading 74.03 classified when 7403.21 doesn’t fit?
Other goods of heading 74.03 are classified under 7403.11 (refined copper, cathodes and sections of cathodes), 7403.12 (refined copper, wire-bars), 7403.13 (refined copper, billets), 7403.19 (refined copper, other) or 2 others.
Sources and updates
The Harmonized System legal text comes from border.bot release 1 (edition HS 2022), imported from a file, and has been live since 13 October 2026.
This page was last updated on 13 October 2026.
Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.