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250860Chapter 25

HS code 250860: Mullite

Covers:
Other clays (not including expanded clays of heading 6806), andalusite, kyanite and…
Listed US duty:
0% (US general rate, HTS 2026)

Official description

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

Find or check your HS code

Suggestions from the HS index, not a customs ruling

Describe what you ship: what it is, what it is made of, how it is processed and what it is used for. I narrow it down against the real HS hierarchy, or check a code you were given.

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What 250860 covers and what it doesn’t

Official text: Other clays (not including expanded clays of heading 6806), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths › Mullite.

Nearby codes to check

  • Heading 2508 Other clays (not including expanded clays of heading 6806), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths: every subheading side by side.
  • 250810 Bentonite
  • 250830 Fireclay
  • 250840 Other clays
  • 250850 Andalusite, kyanite and sillimanite
  • 250870 Chamotte or dinas earths

US duty rate

0%

General (MFN) rate in the US Harmonized Tariff Schedule, 2026 edition. A range means the rate depends on the 8-digit US line your product falls under. Extra duties such as Section 301, Section 232 or anti-dumping orders can apply on top, depending on origin. Check the lines on hts.usitc.gov. Not legal advice.

Common questions

What is HS code 250860?
Other clays (not including expanded clays of heading 6806), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths : Mullite
What duty rates apply to 250860?
Listed duty rates range from 0% across 1 country rate.

Browse all of Chapter 25: Salt; sulphur; earths and stone; plastering materials, lime and cement →

Go beyond the code

Find the companies shipping under 250860 in the company directory, or classify and check duty with the CLI.

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