Echo Investment S.A.

Major Shareholding Notification • Mar 11, 2023

Amendment of the term of a call option relating toan indirect acquisition of a stake of shares in Archicom S.A.

The Management Board of Echo Investment S.A. ("Issuer")informs that on 10 March 2023 the Issuer concluded and annex ("Annex")to the option agreement dated 22 April 2021, which the Issuer announcedin current reports no. 4/2021 dated 4 February 2021 and no. 13/2021dated 22 April 2021 ("Option Agreement"). Pursuant to theOption Agreement, the Issuer is entitled to acquire, or designate anentity to acquire, from Ms. Dorota Jarodzka-Śródka and Mr. RafałJarodzki all the shares in the share capital of DKRA sp. z o.o. with itsregistered seat in Wrocław, which holds 2,132,964 shares in the sharecapital of Archicom S.A. with its registered seat in Wrocław ("Archicom"),representing in aggregate 8,31% of Archicom's share capital and carrying4,246,578 votes at Archicom's general meeting, representing in aggregateapprox. 13.32% of the total number of votes in Archicom ("CallOption"). Pursuant to the Annex, following the amendment, the Issuermay exercise the Call Option no later than on 18 April 2023. OtherOption Agreement's terms and conditions, of which the Issuer informed incurrent reports no. 4/2021 dated 4 February 2021 and no. 13/2021 dated22 April 2021, remain unchanged.

Legal grounds: Art. 17(1) of Regulation (EU) No596/2014 of the European Parliament and of the Council on market abuse(market abuse regulation) and repealing Directive 2003/6/EC of theEuropean Parliament and of the Council and Commission Directives2003/124/EC, 2003/125/EC and 2004/72/EC - inside information.