# United States tariff lines under HS 6806.20

> The United States tariff splits HS 6806.20 (exfoliated vermiculite, expanded clays, foamed slag and similar expanded mineral materials (including intermixtures thereof)) into 1 national line: 6806.20.00.00 (exfoliated vermiculite, expanded clays, foamed slag and similar expanded mineral materials (including intermixtures thereof)). Every United States line under 6806.20 is free of general (MFN) duty.

Source: https://border.bot/countries/united-states/hs-codes/680620
Last updated: 9 October 2026

[Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 68](https://border.bot/countries/united-states/hs-codes/68) / [6806.20](https://border.bot/countries/united-states/hs-codes/680620)

## Key facts

- HS subheading: [6806.20](https://border.bot/hs-codes/680620)
- Duty (MFN): Free
- National lines: 1
- Tariff: [United States](https://border.bot/countries/united-states)
- Chapter: 68: Articles of stone, plaster, cement, asbestos, mica or similar materials

## United States lines under 6806.20

The United States tariff splits HS 6806.20 (exfoliated vermiculite, expanded clays, foamed slag and similar expanded mineral materials (including intermixtures thereof)) into 1 national line: 6806.20.00.00 (exfoliated vermiculite, expanded clays, foamed slag and similar expanded mineral materials (including intermixtures thereof)).

Every United States line under 6806.20 is free of general (MFN) duty.

- [6806.20.00.00](https://border.bot/countries/united-states/hs-codes/6806200000) Exfoliated vermiculite, expanded clays, foamed slag and similar expanded mineral materials (including intermixtures thereof). Duty (MFN): free

## In other countries

No other national tariff on border.bot has live lines under 6806.20 yet.

- [The Harmonized System text for 6806.20](https://border.bot/hs-codes/680620)

- Previous subheading: [6806.10](https://border.bot/countries/united-states/hs-codes/680610) Slag wool, rock wool and similar mineral wools; exfoliated vermiculite, expanded clays, foamed slag and similar expanded mineral materials; mixtures and articles of heat-insulating, sound-insulating or sound-absorbing mineral materials, other than those of heading 6811 or 6812, or of chapter 69
- Next subheading: [6806.90](https://border.bot/countries/united-states/hs-codes/680690) Slag wool, rock wool and similar mineral wools; exfoliated vermiculite, expanded clays, foamed slag and similar expanded mineral materials; mixtures and articles of heat-insulating, sound-insulating or sound-absorbing mineral materials, other than those of heading 6811 or 6812, or of chapter 69

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 6806.20?

The United States tariff splits HS 6806.20 (exfoliated vermiculite, expanded clays, foamed slag and similar expanded mineral materials (including intermixtures thereof)) into 1 national line: 6806.20.00.00 (exfoliated vermiculite, expanded clays, foamed slag and similar expanded mineral materials (including intermixtures thereof)).

### What is the duty on HS 6806.20 in the United States?

Every United States line under 6806.20 is free of general (MFN) duty.

## Sources and updates

The tariff lines for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

The duty rates for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

The trade programmes for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

This page was last updated on 9 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.

Official source files:

- https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false

Machine-readable: https://border.bot/countries/united-states/hs-codes/680620.json