Imerys-press-release-completion-acquisition-of-Chemviron-European-perlite-and-diatomite-business-06-01-2025 VENG

PRESSRELEASE

PARIS, January 6, 2025

Imerys completes the acquisition of Chemviron’s European diatomite and perlite business

Imerys announces today it has completed the acquisition of the European diatomite and perlite business of Chemviron, a subsidiary of Calgon Carbon Corporation.

In 2024, this business generated approximately €50 million in revenue and employed around 130 people.

Thanks to this operation, Imerys acquires three high-quality mining and industrial assets in France and in Italy, extending and complementing its European diatomite and perlite footprint. This acquisition broadens its filtration and life sciences product portfolio to better serve customers in food, beverage, filtration and pharmaceutical markets.

Imerys is the world’s leading supplier of mineral-based specialty solutions for the industry with €3.8 billion in revenue and 13,700 employees in 54 countries in 2023. The Group offers high value-added and functional solutions to a wide range of industries and fast-growing markets such as solutions for the energy transition and sustainable construction, as well as natural solutions for consumer goods. Imerys draws on its understanding of applications, technological knowledge, and expertise in material science to deliver solutions which contribute essential properties to customers’ products and their performance. As part of its commitment to responsible development, Imerys promotes environmentally friendly products and processes in addition to supporting its customers in their decarbonization efforts.

Imerys is listed on Euronext Paris (France) with the ticker symbol NK.PA.

More comprehensive information about Imerys may be obtained from its website (www.imerys.com) in the Regulated Information section, particularly in its Registration Document filed with the French financial markets authority (Autorité des marchés financiers, AMF) on March 26, 2024 under number D.24-0183 (also available from the AMF website, www.amf-france.org). Imerys draws investors’ attention to chapter 2 “Risk Factors and Internal Control” of its Registration

Document.

Analyst/Investor Relations:

Cyrille Arhanchiague : +33 (0)6 07 16 67 26 finance@imerys.com

Press contacts:

Charlotte Richard :+33 (0) 7 88 88 79 31

Mathieu Gratiot : +33 (0)7 87 53 46 60

Victoria Rey (Primatice) : + 33 (0)6 26 94 54 79