Notification of transaction pursuant to Art. 19 ofMAR

The Management Board of STS Holding S.A. (the "Company")informs that on 10.10.2023 it has received notification dated 10.10.2023of transaction relating to the Company's financial instruments from aperson closely associated to a person discharging managerialresponsibilities, i.e. Entain Holdings (CEE) Ltd., a person closelyassociated to Mr. Mateusz Juroszek, the President of the ManagementBoard of the Company, who is also a member of the board of directors ofEntain Holdings (CEE) Ltd.

Attached, the Company's Management Board provides thefull text of the received notice.

Legal basis: Art. 19 ust. 1 MAR - Information ontransactions performed by persons performing managerial functions andclosely related persons