HTS 2508
Other clays (not including expanded clays of heading 6806), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths
| Code | Description | Unit | General | Special | Column 2 | Source |
|---|---|---|---|---|---|---|
| 2508.10.00.00 | Bentonite | t | Free | $3.20/t | USITC | |
| 2508.30.00.00 | Fire-clay | t | Free | $1.97/t | USITC | |
| 2508.40.01 | Other clays | Free | $1.97/t | USITC | ||
| 2508.40.01.10 | Common blue clay and other ball clays | t | Free | $1.97/t | USITC | |
| 2508.40.01.20 | Decolorizing earths and fuller's earth | t | Free | $1.97/t | USITC | |
| 2508.40.01.50 | Other | t | Free | $1.97/t | USITC | |
| 2508.50.00.00 | Andalusite, kyanite and sillimanite | t | Free | Free | USITC | |
| 2508.60.00.00 | Mullite | t | Free | 30% | USITC | |
| 2508.70.00.00 | Chamotte or dinas earth | t | Free | Free | USITC |
The table scrolls sideways.
Source: USITC, Harmonized Tariff Schedule of the United States – 2026 HTS Revision 20, effective 28 September 2026. Heading 2508 at USITC
Not shown: the additional duties of Chapter 99 (such as Section 301 and Section 232), anti-dumping and countervailing duties, quotas and the legal notes.
This page is general information, not legal advice and not a classification decision. Tariff texts and rates change: check the publisher's current schedule, and ask the customs authority for a binding ruling where the answer matters.
All headings of chapter 25: Salt; sulfur; earths and stone; plastering materials, lime and cement