Kemira Plc: Acquisition of own shares on 23 September 2025

Kemira Pc, Stock Exchange Release, September 23, 2025, at 07:00 p.m. EEST

Kemira Plc: Acquisition of own shares on 23 September 2025

Date                       23 September 2025
Exchange transaction       Buy
Share trading code         KEMIRA
Amount, shares             48,357
Average price/share (EUR)  19.4604
Total cost (EUR)           941,046.56

After the acquisitions Kemira Plc holds a total of 2,785,083 treasury shares.

On behalf of Kemira Plc

Danske Bank A/S, Finland Branch


Antti Väliaho                        Jonathan Nyberg

For more information, please contact:

Kemira Plc
Kiira Fröberg, Vice President, Investor Relations
Tel. +358 40 760 4258
kiira.froberg@kemira.com

Kemira is a global leader in sustainable chemical solutions for water-intensive
industries. We deliver tailored products and services to improve the product
quality, processes, and resource efficiency of our diverse range of customers.
Our focus is on water treatment, as well as on fiber and renewable solutions -
enabling sustainability transformation for our customers. In 2024, Kemira
reported annual revenue of EUR 2.9 billion with a global team of some 4,700
colleagues. Kemira is listed on the Nasdaq Helsinki www.kemira.com