PORR AG: Publication pursuant to Section 2 of the Austrian Publication Regulation 2018 (Veröffentlichungsverordnung 2018)

Vienna (pta042/28.04.2026/16:00 UTC+2)

Revocation of the authorisation of the Management Board to dispose of (sell) treasury shares (own shares) together with the new authorisation of the Management Board to dispose of (sell) treasury shares (own shares) by other means than via the stock exchange or a public offer and by excluding the shareholders' general right to purchase (exclusion of subscription rights)

The 146nd ordinary shareholders' meeting (Annual General Meeting) of PORR AG, 1100 Vienna, Absberggasse 47, held on 28 April 2026, passed the following resolutions to item 9 of the agenda:

• The authorization of the Management Board resolved by the Annual General Meeting on 27 May 2021 to dispose of (sell) treasury shares (own shares) for a period of five years from the date of the resolution by other means than via the stock exchange or a public offer, also by excluding the general right to purchase (exclusion of subscription rights), is hereby revoked and replaced by the following new authorization of the Management Board:
  
• The Management Board is authorized for a period of five years from the date of the resolution to dispose of (sell) or use treasury shares (own shares) of the Company by other means than via the stock exchange or via a public offer, subject to the consent of the Supervisory Board. The authorization may be performed in full or in part, also in several tranches and for one or more purposes. The proportional subscription right of the shareholders in case of a disposal or use other than via the stock exchange or by means of a public offer is excluded (exclusion of subscription right).

(Publication pursuant to Section 65 para 1a AktG and Section 119 para 9 BörseG 2018 in conjunction with Section 2 of the Publication Regulation 2018)

For further questions please contact:

Lisa Galuska
Head of Investor Relations
PORR AG
Tel.: +43 (0)50 626-1765
E-Mail: ir@porr-group.com

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Emitter:	PORR AG Absberggasse 47 1100 Wien Austria
Contact Person:	Mag. Ilona Radoczky
Phone:	+43 50 626-1546
E-Mail:	investor.relations@porr.at
Website:	www.porr-group.com
ISIN(s):	AT0000609607 (Share) AT0000A39724 (Bond) XS2408013709 (Bond)
Stock Exchange(s):	Vienna Stock Exchange (Official Trade); Free Market in Frankfurt (Basic Board)