INFORMATION

27 May 2026

Number of outstanding shares and voting rights as of 30 April 2026¹

published pursuant to the provisions of article L. 233-8-II of the French Code de Commerce and articles 221-1 et seq. and 223-16 of the AMF General Regulation

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.

Analyst/Investor Relations:

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

Press contacts:

Mathieu Gratiot : +33 (0) 7 87 53 46 60
Hugues Schmitt (Primatice) : + 33(0) 6 71 99 74 58
Olivier Labesse (Primatice): + 33 (0)6 79 11 49 71

Notes

1. In accordance with the press release published on April 10, 2026, 400,000 shares were acquired during April by an investment services provider through the execution of forward transactions. These shares will be effectively acquired by the Company in April 2027.