Code 2508 40 · Heading 2508

Other clay, excluding refractory clay, kaolin and other kaolin-bearing clays, and expanded clay

This code covers clay that is not refractory clay, kaolin or another kaolin-bearing clay, and is not expanded clay. It is the clay category other than the specifically listed types in this group.

For example

Other clay, excluding refractory clay, kaolin and other kaolin-bearing clays, and expanded clay

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See the official tariff text

Official tariff text

Clays (excl. fireclay, bentonite, kaolin and other kaolinic clays and expanded clay)

The path to this code

Every code is reached through these choices, one level at a time.

Step 4 of 4

Step 1 · Section V Mineral products
Is the product salt, sulphur, earth or stone, gypsum, lime or cement; an ore, slag or ash; or a mineral fuel, mineral oil, distillation product, bituminous substance or mineral wax?
✓
Step 2 · Chapter 25 Salt; sulphur; earths and stone; plastering materia… 1 of 3 chapters in section V
Which named material or product type is it: salt, natural iron sulphides, sulphur, natural graphite, natural sand, quartz or quartzite, kaolin or other kaolin-containing clay, other clay or related materials, chalk, natural phosphates, natural barium compounds, fossil siliceous meal or similar earth, pumice or other natural abrasives, slate, marble or other dense building limestone, granite or other building stone, gravel or crushed stone, dolomite, magnesite or magnesium oxide, gypsum, limestone for lime, cement, asbestos, mica, steatite or talc, natural borates or boric acids, feldspar or similar minerals, or vermiculite, perlite and other minerals?
✓
Step 3 · Heading 2508 Clays, andalusite, kyanite and sillimanite, whether… 8 of 29 headings under chapter 25
Is the product bentonite, refractory clay, other clay, andalusite/cyanite/sillimanite, mullite, or chamotte/dinas clay?
✓
Step 4 · Subheading 2508 40 Clays (excl. fireclay, bentonite, kaolin and other … 3 of 6 subheadings under heading 2508
Is it bentonite; refractory clay; other clay; andalusite, cyanite or sillimanite; mullite; or chamotte or dinas clay?

Full 8-digit codes

Pick the description that best matches your product.

1 code below this one

2508 40 00 Clays (excl. fireclay, bentonite, kaolin and other kaolinic clays and expanded clay) Duty free Save

Compare the sibling codes

2508 10 Bentonite 0.0%
2508 30 Fireclay (excl. kaolin and other kaolinic clays and expanded clay) 0.0%
2508 40 Clays (excl. fireclay, bentonite, kaolin and other kaolinic clays and expanded clay) you are here 0.0%
2508 50 Andalusite, kyanite and sillimanite 0.0%
2508 60 Mullite 0.0%
2508 70 Chamotte or dinas earths 0.0%

Export to Norway

What Norwegian customs charges when goods like these are imported into Norway.

25.08.4000

Other clays

Ordinary duty

Duty free

Goods of EU origin

Duty free You need documentation of EU origin to use this rate.

Norwegian tariff data version 1.5/1.2, last checked Aug. 3, 2026.

Contains data from Norwegian Customs (data.toll.no), licensed under CC BY 4.0, adapted for display.

Export to the United Kingdom

What UK customs charges when goods like these are imported into the UK.

2508 40 00 00

Other clays

Ordinary duty

Duty free

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.

These rates apply in Great Britain. Different rules may apply for goods entering Northern Ireland.

UK tariff data version v4.0.1576, last checked Aug. 3, 2026.

Contains public sector information licensed under the Open Government Licence v3.0.

Source: UK Department for Business and Trade (data.api.trade.gov.uk).

Check the neighbouring codes

The codes just before and after this one, in case a nearby group fits better.

See all 6 codes at this level

Previous code 2508 30

Fireclay (excl. kaolin and other kaolinic clays and expanded clay)

you are here 2508 40

Clays (excl. fireclay, bentonite, kaolin and other kaolinic clays and…

Next code 2508 50

Andalusite, kyanite and sillimanite

Duty rates shown here are estimates, read from official EU / Danish, Norwegian and UK tariff data for orientation only. Confirm the current rate with SKAT, TARIC, Norwegian Customs or the UK Online Trade Tariff before you file. The rate you pay can also depend on the country of origin. These are base customs duties only: import VAT, excise duties, anti-dumping duties and safeguard or quota measures are not included.