# HS code 8109.21: Unwrought zirconium; powders, containing less than 1 part hafnium to 500 parts zirconium by weight

> HS code 8109.21 covers unwrought zirconium; powders, containing less than 1 part hafnium to 500 parts zirconium by weight. It sits in heading 81.09 (zirconium and articles thereof, including waste and scrap) in chapter 81 (other base metals; cermets; articles thereof). Other goods of heading 81.09 are classified under 8109.29 (unwrought zirconium; powders, other), 8109.31 (waste and scrap, containing less than 1 part hafnium to 500 parts zirconium by weight), 8109.39 (waste and scrap, other), 8109.91 (other, containing less than 1 part hafnium to 500 parts zirconium by weight) or 1 other. National tariff lines under 8109.21 are live on border.bot for the United States (1 line, also used by 1 other country).

Source: https://border.bot/hs-codes/810921
Last updated: 11 October 2026

[HS codes](https://border.bot/hs-codes) / [Chapter 81](https://border.bot/hs-codes/81) / [81.09](https://border.bot/hs-codes/8109) / [8109.21](https://border.bot/hs-codes/810921)

## Key facts

- HS code: 8109.21
- Covers: Unwrought zirconium; powders, containing less than 1 part hafnium to 500 parts zirconium by weight
- Heading: [81.09: Zirconium and articles thereof, including waste and scrap](https://border.bot/hs-codes/8109)
- Chapter: [81: Other base metals; cermets; articles thereof](https://border.bot/hs-codes/81)
- Edition: HS2022
- Duty in the United States: [See its 1 line](https://border.bot/countries/united-states/hs-codes/810921)

## What this code covers

HS code 8109.21 covers unwrought zirconium; powders, containing less than 1 part hafnium to 500 parts zirconium by weight.

The legal text of the subheading is “Unwrought zirconium; powders: Containing less than 1 part hafnium to 500 parts zirconium by weight”, read under “Unwrought zirconium; powders”, in HS2022.

## What it doesn’t cover

Other goods of heading 81.09 are classified under 8109.29 (unwrought zirconium; powders, other), 8109.31 (waste and scrap, containing less than 1 part hafnium to 500 parts zirconium by weight), 8109.39 (waste and scrap, other), 8109.91 (other, containing less than 1 part hafnium to 500 parts zirconium by weight) or 1 other.

- [8109.29](https://border.bot/hs-codes/810929) Unwrought zirconium; powders: Other
- [8109.31](https://border.bot/hs-codes/810931) Waste and scrap: Containing less than 1 part hafnium to 500 parts zirconium by weight
- [8109.39](https://border.bot/hs-codes/810939) Waste and scrap: Other
- [8109.91](https://border.bot/hs-codes/810991) Other: Containing less than 1 part hafnium to 500 parts zirconium by weight
- [8109.99](https://border.bot/hs-codes/810999) Other: Other

## How it is structured

8109.21 is a six-digit subheading. Its first two digits, 81, are the chapter; the first four, 8109, are heading 81.09; the last two, 21, identify the subheading within the heading.

Countries add their own digits after these six for their national tariff lines.

- Chapter 81: Other base metals; cermets; articles thereof
- Heading 81.09: Zirconium and articles thereof, including waste and scrap
- Within the heading: Unwrought zirconium; powders
- Subheading 8109.21: Containing less than 1 part hafnium to 500 parts zirconium by weight

## In other countries

National tariff lines under 8109.21 are live on border.bot for the United States (1 line, also used by 1 other country).

- [United States](https://border.bot/countries/united-states/hs-codes/810921): 1 line, used by 1 other country

- Previous subheading: [8108.90](https://border.bot/hs-codes/810890) Other
- Next subheading: [8109.29](https://border.bot/hs-codes/810929) Unwrought zirconium; powders: Other

## Frequently asked questions

### What does HS code 8109.21 cover?

HS code 8109.21 covers unwrought zirconium; powders, containing less than 1 part hafnium to 500 parts zirconium by weight.

### Which heading and chapter is HS code 8109.21 in?

HS code 8109.21 is in heading 81.09 (zirconium and articles thereof, including waste and scrap) in chapter 81 (other base metals; cermets; articles thereof).

### Where are goods of heading 81.09 classified when 8109.21 doesn’t fit?

Other goods of heading 81.09 are classified under 8109.29 (unwrought zirconium; powders, other), 8109.31 (waste and scrap, containing less than 1 part hafnium to 500 parts zirconium by weight), 8109.39 (waste and scrap, other), 8109.91 (other, containing less than 1 part hafnium to 500 parts zirconium by weight) or 1 other.

### Which countries’ tariffs list national lines under HS code 8109.21?

National tariff lines under 8109.21 are live on border.bot for the United States (1 line, also used by 1 other country).

## Sources and updates

The Harmonized System legal text comes from border.bot release 2 (edition HS 2022), imported from a file, and has been live since 11 October 2026.

This page was last updated on 11 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.

Machine-readable: https://border.bot/hs-codes/810921.json