Chapters › 2508 › 2508.40.01

HTS 2508.40.01

Other clays

Other clays (not including expanded clays of heading 6806), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths

General (normal trade relations)Free
Special (trade programs)—
Column 2$1.97/t
As of Revision 22 (2026), effective Oct 30, 2026Source: USITC HTS ↗1 measure adds duty
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Chapter 99 measures that list this product

Each heading’s own text says whether the listing adds duty or exempts the product. Read the heading and its note before relying on a rate.

Measures on products of any country (check their exceptions)

Lines under 2508.40.01

HTSDescriptionGeneralColumn 2
2508.40.01.10Common blue clay and other ball clays
2508.40.01.20Decolorizing earths and fuller's earth
2508.40.01.50Other