Xella International GmbH (Ytong)
German autoclaved aerated concrete, Ytong and Silka blocks for global construction.
Xella International, parent company of the Ytong (aerated concrete) and Silka (calcium silicate) brands, is the world's leading manufacturer of autoclaved aerated concrete (AAC) blocks and calcium silicate bricks. Ytong blocks are lightweight, fire-resistant, and thermally insulating building blocks used in residential and commercial construction. Xella operates 97 plants in 20+ countries.
- Type
- Manufacturer
- Location
- Duisburg, Germany
- Founded
- 1977
- Website
- xella.com
- Categories
- Building & Construction Materials
- Markets
- Germany, Poland, Czechia, Hungary, France
Verified facts
- domain-registered (green), checked 2026-08-02 Domain registry record
- web-presence-since (green), checked 2026-08-03 Internet Archive (Wayback)
- lei-active (green), checked 2026-08-23 GLEIF global LEI register (golden copy)
- debarment-clear (green), checked 2026-08-16 OpenSanctions
- sanctions-clear (green), checked 2026-08-16 OpenSanctions
Claimed certifications
- ISO 9001, Quality Management IAF CertSearch
- CE Marking EU NANDO (notified bodies)
Import rules for these goods
- Construction products sold in the EU need a Declaration of Performance and CE marking under the Construction Products Regulation. European Commission (CPR)
- Cement and steel components imported into the EU fall under CBAM (definitive regime from 1 Jan 2026). European Commission (CBAM)