# United States tariff lines under HS 2524.90

> The United States tariff splits HS 2524.90 (asbestos) into 6 national lines: 2524.90.00.10 (amosite), 2524.90.00.30 (crudes), 2524.90.00.40 (milled fibers, group 3 grades (spinning fibers or equivalent)), 2524.90.00.45 (milled fibers, group 4 and 5 grades) and 2 others. Every United States line under 2524.90 is free of general (MFN) duty.

Source: https://border.bot/countries/united-states/hs-codes/252490
Last updated: 9 October 2026

[Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 25](https://border.bot/countries/united-states/hs-codes/25) / [2524.90](https://border.bot/countries/united-states/hs-codes/252490)

## Key facts

- HS subheading: [2524.90](https://border.bot/hs-codes/252490)
- Duty (MFN): Free
- National lines: 6
- Tariff: [United States](https://border.bot/countries/united-states)
- Chapter: 25: Salt; sulphur; earths and stone; plastering materials, lime and cement

## United States lines under 2524.90

The United States tariff splits HS 2524.90 (asbestos) into 6 national lines: 2524.90.00.10 (amosite), 2524.90.00.30 (crudes), 2524.90.00.40 (milled fibers, group 3 grades (spinning fibers or equivalent)), 2524.90.00.45 (milled fibers, group 4 and 5 grades) and 2 others.

Every United States line under 2524.90 is free of general (MFN) duty.

- [2524.90.00.10](https://border.bot/countries/united-states/hs-codes/2524900010) Other, Amosite. Duty (MFN): free
- [2524.90.00.30](https://border.bot/countries/united-states/hs-codes/2524900030) Other, Chrysotile, Crudes. Duty (MFN): free
- [2524.90.00.40](https://border.bot/countries/united-states/hs-codes/2524900040) Other, Chrysotile, Milled fibers, group 3 grades (spinning fibers or equivalent). Duty (MFN): free
- [2524.90.00.45](https://border.bot/countries/united-states/hs-codes/2524900045) Other, Chrysotile, Milled fibers, group 4 and 5 grades. Duty (MFN): free
- [2524.90.00.55](https://border.bot/countries/united-states/hs-codes/2524900055) Other, Chrysotile, Other. Duty (MFN): free
- [2524.90.00.60](https://border.bot/countries/united-states/hs-codes/2524900060) Other, Other. Duty (MFN): free

## In other countries

No other national tariff on border.bot has live lines under 2524.90 yet.

- [The Harmonized System text for 2524.90](https://border.bot/hs-codes/252490)

- Previous subheading: [2524.10](https://border.bot/countries/united-states/hs-codes/252410) Asbestos
- Next subheading: [2525.10](https://border.bot/countries/united-states/hs-codes/252510) Mica, including splittings; mica waste

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 2524.90?

The United States tariff splits HS 2524.90 (asbestos) into 6 national lines: 2524.90.00.10 (amosite), 2524.90.00.30 (crudes), 2524.90.00.40 (milled fibers, group 3 grades (spinning fibers or equivalent)), 2524.90.00.45 (milled fibers, group 4 and 5 grades) and 2 others.

### What is the duty on HS 2524.90 in the United States?

Every United States line under 2524.90 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/252490.json