Kemira Oyj: Acquisition of own shares on 8 September 2025

Kemira Oyj, Stock Exchange Release, September 8, 2025, at 07:00 p.m. EEST

Kemira Oyj: Acquisition of own shares on 8 September 2025

Date                       8 September 2025
Exchange transaction       Buy
Share trading code         KEMIRA
Amount, shares             32,176
Average price/share (EUR)  19.8138
Total cost (EUR)           637,528.83

After the acquisitions Kemira Plc holds a total of 2,325,580 treasury shares.

On behalf of Kemira Oyj

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