# HS code 8109.31: Waste and scrap, containing less than 1 part hafnium to 500 parts zirconium by weight

> HS code 8109.31 covers waste and scrap, 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 8109.21 (unwrought zirconium; powders, containing less than 1 part hafnium to 500 parts zirconium by weight), 8109.29 (unwrought zirconium; powders, other), 8109.39 (waste and scrap, other), 8109.91 (other, containing less than 1 part hafnium to 500 parts zirconium by weight) or 1 other.

Source: https://staging.border.bot/hs-codes/810931
Last updated: 13 October 2026

[HS codes](https://staging.border.bot/hs-codes) / [Chapter 81](https://staging.border.bot/hs-codes/81) / [81.09](https://staging.border.bot/hs-codes/8109) / [8109.31](https://staging.border.bot/hs-codes/810931)

## Key facts

- HS code: 8109.31
- Covers: 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://staging.border.bot/hs-codes/8109)
- Chapter: [81: Other base metals; cermets; articles thereof](https://staging.border.bot/hs-codes/81)
- Edition: HS2022
- Duty rates: [Set by each country’s tariff](https://staging.border.bot/countries)

## What this code covers

HS code 8109.31 covers waste and scrap, containing less than 1 part hafnium to 500 parts zirconium by weight.

The legal text of the subheading is “Waste and scrap: Containing less than 1 part hafnium to 500 parts zirconium by weight”, read under “Waste and scrap”, 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), 8109.39 (waste and scrap, other), 8109.91 (other, containing less than 1 part hafnium to 500 parts zirconium by weight) or 1 other.

- [8109.21](https://staging.border.bot/hs-codes/810921) Unwrought zirconium; powders: Containing less than 1 part hafnium to 500 parts zirconium by weight
- [8109.29](https://staging.border.bot/hs-codes/810929) Unwrought zirconium; powders: Other
- [8109.39](https://staging.border.bot/hs-codes/810939) Waste and scrap: Other
- [8109.91](https://staging.border.bot/hs-codes/810991) Other: Containing less than 1 part hafnium to 500 parts zirconium by weight
- [8109.99](https://staging.border.bot/hs-codes/810999) Other: Other

## How it is structured

8109.31 is a six-digit subheading. Its first two digits, 81, are the chapter; the first four, 8109, are heading 81.09; the last two, 31, 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: Waste and scrap
- Subheading 8109.31: Containing less than 1 part hafnium to 500 parts zirconium by weight

## In other countries

No national tariff lines under 8109.31 are live on border.bot yet. Tariffs built on the Harmonized System (HS2022) use 8109.31 at six digits and add their own digits after it.

- Previous subheading: [8109.29](https://staging.border.bot/hs-codes/810929) Unwrought zirconium; powders: Other
- Next subheading: [8109.39](https://staging.border.bot/hs-codes/810939) Waste and scrap: Other

## Frequently asked questions

### What does HS code 8109.31 cover?

HS code 8109.31 covers waste and scrap, containing less than 1 part hafnium to 500 parts zirconium by weight.

### Which heading and chapter is HS code 8109.31 in?

HS code 8109.31 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 8109.31 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), 8109.39 (waste and scrap, other), 8109.91 (other, containing less than 1 part hafnium to 500 parts zirconium by weight) or 1 other.

## 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.

Machine-readable: https://staging.border.bot/hs-codes/810931.json