Exel Composites Plc has been the target of a cyberattack

EXEL COMPOSITES PLC                STOCK EXCHANGE RELEASE    25 JULY 2025 AT
1:01 PM EEST

Exel Composites became the target of a cyberattack in July, and a data breach
was confirmed by investigations on 18 July 2025. The unauthorized intrusion
affected a limited number of workstations and servers. The company acted
immediately, working with internal and external experts to contain the breach
and to protect its systems from further exposure as well as to analyze the
extent of the compromised information.

As a precaution, Exel Composites has proactively shared preliminary information
on its half-year financial report for January-July 2025. In addition, the
company informs about the possible exposure of employee and shareholder personal
data as well as certain business-related information.

Exel Composites has filed a criminal report with the police regarding the
incident and reported it to data protection authorities. The company continues
to cooperate with the authorities and work with experts to analyze the incident
and will inform the identified and affected stakeholders as soon as possible.
The company offers comprehensive support to its employees and is actively
exploring how similar support measures could be extended to its shareholders
whose data may have been affected.

The cyberattack did not affect the company's business, manufacturing or the
operational capacity of the company's factories.

“While we have been working on cybersecurity across the entire organization for
multiple years, we were not immune to this attack. We sincerely regret the
breach and any consequences it causes,” says President and CEO Paul Sohlberg.
“We need to thoroughly review the full extent of the incident. The disclosures
published today are taken as a pre-emptive measure to secure the interests of
our stakeholders. We are also taking the incident as an inducement to further
strengthen our already rigorous cybersecurity procedures and to support our
people with even better tools and training.”

For further information, please contact:

Lauri Haavisto
Director, Investor Relations
investor@exelcomposites.com


Exel Composites in brief

Exel Composites is one of the largest manufacturers of composite profiles and
tubes made with pultrusion and pullwinding technologies and a pultrusion
technology forerunner in the global composite market. Our forward-thinking
composite solutions made with continuous manufacturing technologies serve
customers in a wide range of industries around the world. You can find our
products used in applications in diverse industrial sectors such as wind power,
transportation and building and infrastructure.

Our R&D expertise, collaborative approach and global footprint set us apart from
our competition. Our composite solutions help customers save resources, reduce
products' weight, improve performance and energy efficiency, and decrease total
lifetime costs. We want to be the first choice for sustainable composite
solutions globally.

Headquartered in Finland, Exel Composites employs over 600 forward-thinking
professionals around the world and is listed on Nasdaq Helsinki. To find out
more about our offering and company please visit www.exelcomposites.com