# HS code 2621.10: Ash and residues from the incineration of municipal waste

> HS code 2621.10 covers ash and residues from the incineration of municipal waste. It sits in heading 26.21 (other slag and ash, including seaweed ash (kelp); ash and residues from the incineration of municipal waste) in chapter 26 (ores, slag and ash). Other goods of heading 26.21 are classified under 2621.90 (other). National tariff lines under 2621.10 are live on border.bot for the United States (1 line, also used by 1 other country).

Source: https://border.bot/hs-codes/262110
Last updated: 11 October 2026

[HS codes](https://border.bot/hs-codes) / [Chapter 26](https://border.bot/hs-codes/26) / [26.21](https://border.bot/hs-codes/2621) / [2621.10](https://border.bot/hs-codes/262110)

## Key facts

- HS code: 2621.10
- Covers: Ash and residues from the incineration of municipal waste
- Heading: [26.21: Other slag and ash, including seaweed ash (kelp); ash and residues from the incineration of municipal waste](https://border.bot/hs-codes/2621)
- Chapter: [26: Ores, slag and ash](https://border.bot/hs-codes/26)
- Edition: HS2022
- Duty in the United States: [See its 1 line](https://border.bot/countries/united-states/hs-codes/262110)

## What this code covers

HS code 2621.10 covers ash and residues from the incineration of municipal waste.

The legal text of the subheading is “Ash and residues from the incineration of municipal waste”, in HS2022.

## What it doesn’t cover

Other goods of heading 26.21 are classified under 2621.90 (other).

- [2621.90](https://border.bot/hs-codes/262190) Other

## How it is structured

2621.10 is a six-digit subheading. Its first two digits, 26, are the chapter; the first four, 2621, are heading 26.21; the last two, 10, identify the subheading within the heading.

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

- Chapter 26: Ores, slag and ash
- Heading 26.21: Other slag and ash, including seaweed ash (kelp); ash and residues from the incineration of municipal waste
- Subheading 2621.10: Ash and residues from the incineration of municipal waste

## In other countries

National tariff lines under 2621.10 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/262110): 1 line, used by 1 other country

- Previous subheading: [2620.99](https://border.bot/hs-codes/262099) Other: Other
- Next subheading: [2621.90](https://border.bot/hs-codes/262190) Other

## Frequently asked questions

### What does HS code 2621.10 cover?

HS code 2621.10 covers ash and residues from the incineration of municipal waste.

### Which heading and chapter is HS code 2621.10 in?

HS code 2621.10 is in heading 26.21 (other slag and ash, including seaweed ash (kelp); ash and residues from the incineration of municipal waste) in chapter 26 (ores, slag and ash).

### Where are goods of heading 26.21 classified when 2621.10 doesn’t fit?

Other goods of heading 26.21 are classified under 2621.90 (other).

### Which countries’ tariffs list national lines under HS code 2621.10?

National tariff lines under 2621.10 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/262110.json