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Guidance

Goods within the cement sector

Published 16 July 2026

A commodity code is a standardised sequence of numbers used to classify goods for international trade. Customs authorities use these numbers — often called HS (Harmonized System) codes or tariff codes, to process shipments, calculate taxes, and enforce safety regulations.

Understanding your commodity code

Commodity codes begin with an HS chapter code (top level)Ìý—Ìýusing a 2-digit number, for example 25 (salt, sulphur, earths and stone, plastering materials, lime and cement).Ìý

The code is then followed by a further 2-digit code, for example 23Ìý(known as an HS heading) —Ìýforming a 4-digit number, for example 2523.Ìý

Then a sub-headingÌýis applied using up to a further 6 digits (known as an HS sub-heading), for example 2900 00 — forming a final 10-digit code (also known as a Combined Nomenclature (CN) code), for example 2523 2900 00.

Look up your commodity code

Use theÌýÌýto look upÌýand find out more about your commodityÌýcodes.

Once you have your commodity code, check if it is listed in the section ‘Goods within the cement sectorÌýthat areÌýliable for Carbon Border Adjustment Mechanism (CBAM) tax’ to find out if your goods are liable for CBAM tax.

GoodsÌýin scope of the taxÌýin this list include:Ìý

  • the headingÌý
  • sub-headingsÌýthatÌýare under the heading

For example,Ìý2523 2900 00 is not listed but is in scope forÌýCBAM, as it falls underÌý2523 29.Ìý

GoodsÌýwithin the cement sector that are liable forÌýCBAMÌý³Ù²¹³æ

Commodity codeÌý Ìý¶Ù±ð²õ³¦°ù¾±±è³Ù¾±´Ç²ÔÌý Greenhouse gasesÌý
Ìý2507 00 80Ìý Other kaolinic claysÌý Carbon dioxideÌý Ìý
2523 10 Cement clinkers Carbon dioxide Ìý
2523 21 White Portland cement,Ìýwhether or notÌýartificially coloured Carbon dioxideÌýÌý Ìý
2523 29 Other Portland cement Carbon dioxide Ìý
2523 30 Aluminous cement Carbon dioxide Ìý
2523 90  Other hydraulic cements Carbon dioxide Ìý

Goods that are not liable forÌýCBAMÌý³Ù²¹³æ

Where products inÌýCBAMÌýsectors are not in scope of the tax,Ìýthey’reÌýlisted starting with the word ‘Except’.