# HS code 8109.91: Zirconium and articles thereof, including waste and scrap, containing less than 1 part hafnium to 500 parts zirconium by weight

> HS code 8109.91 covers zirconium and articles thereof, including waste and scrap, containing less than 1 part hafnium to 500 parts zirconium by weight, other than those classified in 8109.99. 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 8109.21 (unwrought zirconium; powders, containing less than 1 part hafnium to 500 parts zirconium by weight), 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) or 1 other. National tariff lines under 8109.91 are live on border.bot for the United States (1 line, also used by 1 other country).

Source: https://border.bot/hs-codes/810991
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) / [8109.91](https://border.bot/hs-codes/810991)

## Key facts

- HS code: 8109.91
- Covers: Zirconium and articles thereof, including waste and scrap, 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/810991)

## What this code covers

HS code 8109.91 covers zirconium and articles thereof, including waste and scrap, containing less than 1 part hafnium to 500 parts zirconium by weight, other than those classified in 8109.99.

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

## What it doesn’t cover

Other goods of heading 81.09 are classified under 8109.21 (unwrought zirconium; powders, containing less than 1 part hafnium to 500 parts zirconium by weight), 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) or 1 other.

- [8109.21](https://border.bot/hs-codes/810921) Unwrought zirconium; powders: Containing less than 1 part hafnium to 500 parts zirconium by weight
- [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
- [8109.99](https://border.bot/hs-codes/810999) Other: Other

## How it is structured

8109.91 is a six-digit subheading. Its first two digits, 81, are the chapter; the first four, 8109, are heading 81.09; the last two, 91, 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: Other
- Subheading 8109.91: Containing less than 1 part hafnium to 500 parts zirconium by weight

## In other countries

National tariff lines under 8109.91 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/810991): 1 line, used by 1 other country

- Previous subheading: [8109.39](https://border.bot/hs-codes/810939) Waste and scrap: Other
- Next subheading: [8109.99](https://border.bot/hs-codes/810999) Other: Other

## Frequently asked questions

### What does HS code 8109.91 cover?

HS code 8109.91 covers zirconium and articles thereof, including waste and scrap, containing less than 1 part hafnium to 500 parts zirconium by weight, other than those classified in 8109.99.

### Which heading and chapter is HS code 8109.91 in?

HS code 8109.91 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 8109.91 doesn’t fit?

Other goods of heading 81.09 are classified under 8109.21 (unwrought zirconium; powders, containing less than 1 part hafnium to 500 parts zirconium by weight), 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) or 1 other.

### Which countries’ tariffs list national lines under HS code 8109.91?

National tariff lines under 8109.91 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/810991.json