REGULATED INFORMATION

April 3, 2026

ORDINARY SHAREHOLDERS’ GENERAL MEETING OF MAY 12, 2026

The shareholders are called to attend the Ordinary Shareholders’ General Meeting of Imerys (the “Company”) which will be held at New Cap Event Center, 3 Quai de Grenelle, Paris (75015), on Tuesday May 12, 2026 at 3:00 p.m (the “Meeting”).

The notice of meeting was published in the BALO (Bulletin des Annonces Légales Obligatoires) on April 3, 2026. It includes the agenda, the draft resolutions which will be submitted for the approval of the shareholders, and the terms and conditions for participating and voting at this Meeting.

Any other documents and information relating to the Meeting will be made available in accordance with applicable regulations, at the Company’s registered office, on its website or from Uptevia, in charge of share registry services of the Company.

In accordance with applicable regulations, the Meeting will be broadcast live via audiovisual transmission on the Company’s website.

Shareholders are invited to regularly consult the section Finance / Shareholders’ Corner / Shareholders’ General Meeting on the Company’s website (www.imerys.com).

Imerys is the world’s leading supplier of mineral-based specialty solutions for the industry with €3.4 billion in revenue and 12,300 employees in 40 countries in 2025. 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.