STS Holding S.A.

Director's Dealing • May 31, 2023

Notifications of transactions pursuant to Art. 19of MAR

The Management Board of STS Holding S.A. (the"Company") informs that on 31 May 2023 it has received notificationsdated 31 May 2023 of transactions relating to the Company's financialinstruments from persons performing managerial functions, i.e. (i)Betplay Capital sp. z o.o. as an entity closely related to a personperforming managerial functions Mr. Mateusz Juroszek, (ii) JuroszekHolding sp. z o.o. as an entity closely related to a person performingmanagerial functions Mr. Zbigniew Juroszek, (iii) MJ Investments sp. zo.o. as an entity closely related to a person performing managerialfunctions Mr. Mateusz Juroszek, (iv) MJ Foundation Fundacja Rodzinna worganizacji as an entity closely related to a person performingmanagerial functions Mr. Mateusz Juroszek, (v)FundacjaZbigniewa Juroszka Fundacja Rodzinna w organizacjiasan entity closely related to a person performing managerial functionsMr. Zbigniew Juroszek.

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

Legal basis:

Art. 19 ust. 1 MAR - Information on transactionsperformed by persons performing managerial functions and closely relatedpersons