Voluntary public takeover bid on Zenitel: extension of the acceptance period of the reopening until Friday 21 May 2021

House of Thor BV/SRL announces that the reopened acceptance period, which was opened on Monday 26 April 2021 is extended until Friday 21 May 2021 at 4:00 pm (Belgian time).

The purpose of this extension is to provide shareholders with sufficient time to make an informed
decision on the bid, taking into account the recent announcement of the increase of the bid price to EUR
25.50 and the commitment of shareholders representing approximately 6% of shares Zenitel (i.e. almost
half of the shares not yet held by the bidder) to accept the improved bid (see press release of 23 April
2021).

The results of the reopened acceptance period will be announced no later than Monday 31 May 2021.
At the latest on Monday 14 June 2021, House of Thor BV/SRL will pay the increased bid price to the
shareholders who tendered their shares during the reopened acceptance period. On the same day, the
shareholders who accepted the bid earlier will receive the additional bid price of EUR 2.25 per share.

Simultaneously with this press release, House of Thor BV/SRL publishes a supplement to the
prospectus, which provides further explanations on the increased bid price, as well as on the tender
commitments and the amended timetable (including the expected timetable in case of a subsequent
reopening (whether or not within the framework of the simplified squeeze-out)).

This supplement, as well as the prospectus and the acceptance forms, can be obtained free of charge
at the counters of KBC Bank NV/SA, or by telephone from KBC Bank NV/SA on [phone] (KBC
Live). The digital versions of the prospectus, the acceptance forms and the supplement can also be
consulted on the internet at the following websites: www.kbc.be/zenitel, www.bolero.be/nl/zenitel,
www.bolero.be/fr/zenitel and on the websites of 3D NV/SA (www.3d-investors.be) and the Target
(www.zenitel.be).

About House of Thor (the Bidder)
House of Thor is a subsidiary of 3d investors, incorporated with a view to launching the public takeover
bid on Zenitel. It currently holds 86.83% of the shares in Zenitel.

3d investors is a family investment company that chooses to support the growth of solid companies, in
partnership with entrepreneurs and management. They always start from the core values:
entrepreneurship, empathy, integrity, passion and agility.

3d investors is a long-term shareholder in a number of listed groups (KBC, Ackermans & van Haaren,
Atenor, Barco and Zenitel), non-listed companies (including Care Cosmetics, Pauwels Consulting,
Plastiflex, Studio 100 and 3P) and 3d Real Estate.

More information can be found on www.3d-investors.be

Contact: Anthony Callaert, Communications Manager Growth Inc., [e-mail],
[phone]

About Zenitel
Zenitel is a major global player in the development and marketing of intelligent communication solutions
where security, guaranteed availability and sound quality are essential. With nearly 120 years of
experience, Zenitel has proven to be a reliable and quality provider of broadcast systems, intercom
solutions and two-way radio. These systems interface with other security devices, enabling end users
and integrators to build a comprehensive and integrated security solution that combines access control,
video surveillance, digital messaging and other solutions. Today, Zenitel's customers include security
services providers, companies and organisations active in the transportation and shipping sectors,
healthcare institutions and industrial companies.

Zenitel employs approximately 300 people worldwide, is headquartered in Norway and sells its solutions
under the Zenitel, Vingtor-Stentofon and Phontech brands.

More information can be found on www.zenitel.com.

Disclaimer
This notice is also published in Dutch. If this should create uncertainty, the Dutch version will prevail.

This press release does not constitute a bid to purchase the securities of Zenitel nor a solicitation by
any person in any jurisdiction thereof. The bid is only made on the basis of the prospectus approved by
the FSMA. No action has been taken to enable a public takeover bid in any jurisdiction other than in
Belgium. Neither this press release nor any other information in respect of the matters contained herein
may be supplied in any jurisdiction where a registration, qualification or any other obligation is in force
or would be with regard to the content hereof or thereof. Any failure to comply with these restrictions
may constitute a violation of the financial laws and regulations of such jurisdiction. House of
Thor BV/SRL and its affiliate persons explicitly decline any liability for breach of these restrictions by
any person.