Ciech S.A.

M&A Activity • Apr 12, 2023

TheManagement Board of Ciech S.A. with its registered office in Warsaw (the"Company" or_#160;"Issuer") herebyinforms that on April 12, 2023, the Company received notifications aboutthe submission of subscriptions for sale on April 12, 2023 in the TenderOffer for the sale of the Company's shares announced by KI Chemistry S._#225;r.l. on March 9, 2023, all shares in the Company held by the followingmembers of the Management Board:_#183;_#160;_#160;_#160;DawidJakubowicz, President of the Management Board - subscribed for sale of39,713_#160;shares (representing0,08% of the shares in the Company's share capital)_#183;_#160;_#160;_#160;_#160;Jarosław Romanowski, Member of the ManagementBoard - subscribed for sale of 17,550_#160;shares(representing 0,03% of the shares in the Company's share capital).

Thesale of the Company's shares held by the members of the Company'sManagement Board will be made on the terms and conditions set forth inthe Tender Offer document.

Thecontent of the notifications received is attached hereto.

Legalbasis:_#160;Article19.3 of Regulation of the European Parliament and of the Council (EU)No. 596/2014 on_#160;market abuse (market abuse regulation) and repealingDirective 2003/6/EC of the European Parliament and of the Council andCommission Directives 2003/124/EC, 2003/125/EC and 2004/72/EC (OfficialJournal of the European Union of 2014, L 173/1, as_#160;amended).