HS code 250840: Clays
- Covers:
- Other clays (not including expanded clays of heading 6806), andalusite, kyanite and… not listed under the other codes in this heading.
- Not covered:
- 250810 (Bentonite); 250830 (Fireclay); 250850 (Andalusite, kyanite and sillimanite); and others.
- 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 : Other clays
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.
What 250840 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 › Other clays.
This is the “other” line of heading 2508 (other clays (not including expanded clays of heading 6806), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths). It takes goods of that heading that no more specific subheading names. These go elsewhere:
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.
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.
Who imports under 250840
EximAgent lists companies with recorded shipments under this code, built from customs records, with who they buy from and how often. See importers of 250840 →
Common questions
- What is HS code 250840?
- Other clays (not including expanded clays of heading 6806), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths : Other clays
- What duty rates apply to 250840?
- 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
Classify a product and check the duty for your destination with the CLI, then keep researching in your own agent.