# United States tariff line 2524.90.00.45: Milled fibers, group 4 and 5 grades

> In the United States tariff, line 2524.90.00.45 covers chrysotile, milled fibers, group 4 and 5 grades. Goods under this line enter free of general (MFN) duty. It falls under HS subheading 2524.90 in heading 25.24 (chapter 25).

Source: https://border.bot/countries/united-states/hs-codes/2524900045
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) / [2524.90.00.45](https://border.bot/countries/united-states/hs-codes/2524900045)

## Key facts

- Tariff line: 2524.90.00.45
- Covers: Chrysotile, milled fibers, group 4 and 5 grades
- Duty (MFN): Free
- Additional duties: None recorded
- Restrictions: None recorded
- Tariff: [United States](https://border.bot/countries/united-states)
- HS subheading: [2524.90](https://border.bot/hs-codes/252490)

## What this line covers

In the United States tariff, line 2524.90.00.45 covers chrysotile, milled fibers, group 4 and 5 grades.

Its legal text is “Milled fibers, group 4 and 5 grades”, read under “Other” and “Chrysotile”.

## How it is structured

It falls under HS subheading 2524.90 in heading 25.24 (chapter 25). The first six digits are the Harmonized System code; the 4 digits after them are added by the United States tariff.

- Chapter 25: Salt; sulphur; earths and stone; plastering materials, lime and cement
- Heading 25.24: Asbestos
- Subheading 2524.90: Other
- Within the subheading: Chrysotile
- Line 2524.90.00.45: Milled fibers, group 4 and 5 grades

## Duty

Goods under this line enter free of general (MFN) duty.

The rate is published on 2524.90.00.

## 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)

## Other lines under 2524.90

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

- Previous line: [2524.90.00.40](https://border.bot/countries/united-states/hs-codes/2524900040) Milled fibers, group 3 grades (spinning fibers or equivalent)
- Next line: [2524.90.00.55](https://border.bot/countries/united-states/hs-codes/2524900055) Other

## Frequently asked questions

### What does tariff line 2524.90.00.45 cover in the United States tariff?

In the United States tariff, line 2524.90.00.45 covers chrysotile, milled fibers, group 4 and 5 grades.

### What is the general (MFN) duty on 2524.90.00.45 in the United States?

Goods under this line enter free of general (MFN) duty. The rate is published on 2524.90.00.

## 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/2524900045.json