Ackermans & van Haaren NV

Proxy Solicitation & Information Statement • Apr 24, 2025

In order to be able to participate and vote at the annual general meeting of May 26, 2025, your confirmation of participation must be in the possession of Ackermans & van Haaren NV by Tuesday May 20, 2025 at the latest (see practical formalities).

We recommend that you return this form by e-mail (AV2025@avh.be).

For dematerialized shares, a bank certificate confirming the number of shares you hold on May 12, 2025 (midnight, Belgian time) (registration date) is also required.

Please consult our Privacy Policy on our website, www.avh.be, for information on the processing of your personal data (including your rights).

CONFIRMATION OF PARTICIPATION

ANNUAL GENERAL MEETING OF MONDAY MAY 26, 2025

ACKERMANS & VAN HAAREN NV

The undersigned, ………………………………………………………………………………….........................................…………………….. owner / usufructuary of ……………...…..............................dematerialized shares and/or …........................……………... registered shares of Ackermans & van Haaren NV, with registered office at Begijnenvest 113, 2000 Antwerp, hereby confirms his/her/its intention to participate to the annual general meeting of Ackermans & van Haaren NV to be held on May 26, 2025 as of 14h, with all his/her/its shares or

……………..………………………….. shares. (Specific number of shares to be completed only in the event you intend to participate with less than the total number of shares. If no specific number is completed, we will assume that you wish to participate with all your shares.)

This confirmation of participation is valid for the total number of shares with which the undersigned intends to participate, but limited to the total number of shares of which the shareholding will be determined on the registration date in accordance with the practical formalities.

Done at ............................................................., on .............................................................. 2025.

(If the shareholder is a legal entity, this confirmation of participation must be signed by one or more persons who can validly represent it. Please also state explicitly the name and capacity of the signatory(-ies).)

SIGNATURE(S):

......................................................................................

Name: Capacity: