# HS code 5105.21: Wool tops and other combed wool, combed wool in fragments

> HS code 5105.21 covers wool tops and other combed wool, combed wool in fragments. It sits in heading 51.05 (wool and fine or coarse animal hair, carded or combed (including combed wool in fragments)) in chapter 51 (wool, fine or coarse animal hair; horsehair yarn and woven fabric). Other goods of heading 51.05 are classified under 5105.10 (carded wool), 5105.29 (wool tops and other combed wool, other), 5105.31 (fine animal hair, carded or combed, of Kashmir (cashmere) goats), 5105.39 (fine animal hair, carded or combed, other) or 1 other. National tariff lines under 5105.21 are live on border.bot for the United States (1 line, also used by 1 other country).

Source: https://border.bot/hs-codes/510521
Last updated: 11 October 2026

[HS codes](https://border.bot/hs-codes) / [Chapter 51](https://border.bot/hs-codes/51) / [51.05](https://border.bot/hs-codes/5105) / [5105.21](https://border.bot/hs-codes/510521)

## Key facts

- HS code: 5105.21
- Covers: Wool tops and other combed wool, combed wool in fragments
- Heading: [51.05: Wool and fine or coarse animal hair, carded or combed (including combed wool in fragments)](https://border.bot/hs-codes/5105)
- Chapter: [51: Wool, fine or coarse animal hair; horsehair yarn and woven fabric](https://border.bot/hs-codes/51)
- Edition: HS2022
- Duty in the United States: [See its 1 line](https://border.bot/countries/united-states/hs-codes/510521)

## What this code covers

HS code 5105.21 covers wool tops and other combed wool, combed wool in fragments.

The legal text of the subheading is “Wool tops and other combed wool: Combed wool in fragments”, read under “Wool tops and other combed wool”, in HS2022.

## What it doesn’t cover

Other goods of heading 51.05 are classified under 5105.10 (carded wool), 5105.29 (wool tops and other combed wool, other), 5105.31 (fine animal hair, carded or combed, of Kashmir (cashmere) goats), 5105.39 (fine animal hair, carded or combed, other) or 1 other.

- [5105.10](https://border.bot/hs-codes/510510) Carded wool
- [5105.29](https://border.bot/hs-codes/510529) Wool tops and other combed wool: Other
- [5105.31](https://border.bot/hs-codes/510531) Fine animal hair, carded or combed: Of Kashmir (cashmere) goats
- [5105.39](https://border.bot/hs-codes/510539) Fine animal hair, carded or combed: Other
- [5105.40](https://border.bot/hs-codes/510540) Coarse animal hair, carded or combed

## How it is structured

5105.21 is a six-digit subheading. Its first two digits, 51, are the chapter; the first four, 5105, are heading 51.05; the last two, 21, identify the subheading within the heading.

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

- Chapter 51: Wool, fine or coarse animal hair; horsehair yarn and woven fabric
- Heading 51.05: Wool and fine or coarse animal hair, carded or combed (including combed wool in fragments)
- Within the heading: Wool tops and other combed wool
- Subheading 5105.21: Combed wool in fragments

## In other countries

National tariff lines under 5105.21 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/510521): 1 line, used by 1 other country

- Previous subheading: [5105.10](https://border.bot/hs-codes/510510) Carded wool
- Next subheading: [5105.29](https://border.bot/hs-codes/510529) Wool tops and other combed wool: Other

## Frequently asked questions

### What does HS code 5105.21 cover?

HS code 5105.21 covers wool tops and other combed wool, combed wool in fragments.

### Which heading and chapter is HS code 5105.21 in?

HS code 5105.21 is in heading 51.05 (wool and fine or coarse animal hair, carded or combed (including combed wool in fragments)) in chapter 51 (wool, fine or coarse animal hair; horsehair yarn and woven fabric).

### Where are goods of heading 51.05 classified when 5105.21 doesn’t fit?

Other goods of heading 51.05 are classified under 5105.10 (carded wool), 5105.29 (wool tops and other combed wool, other), 5105.31 (fine animal hair, carded or combed, of Kashmir (cashmere) goats), 5105.39 (fine animal hair, carded or combed, other) or 1 other.

### Which countries’ tariffs list national lines under HS code 5105.21?

National tariff lines under 5105.21 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/510521.json