Ciech S.A.

Major Shareholding Notification • Apr 28, 2023

Thecontent of the notification have been attached to this Report._#160;

Legalbasis:Article 19.3 of Regulation of the European Parliament and of the Council(EU) No. 596/2014 on market abuse (market abuse regulation - _#8216;MAR') andrepealing Directive 2003/6/EC of the European Parliament and of theCouncil and Commission Directives 2003/124/EC, 2003/125/EC and2004/72/EC (Official Journal of the European Union of 2014, L 173/1, asamended).