MASTERPLAST Nyilvánosan Működő Részvénytársaság

Director's Dealing • Sep 5, 2025

NOTIFICATION AND PUBLIC DISCLOSURE OF TRANSACTIONS BY PERSONS DISCHARGING MANAGERIAL RESPONSIBILITIES AND PERSONS CLOSELY ASSOCIATED WITH THEM IN ACCORDANCE WITH THE REQUIREMENTS OF THE REGULATION (EU) NO 596/2014 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL

1.	Details of the person discharging managerial responsibilities/person closely associated
a)	Name	Péter Luczay
2.	Reason for the notification
a)	Position/status	the European Parliament and of the Council, Péter Luczay ALTEO Plc., the Issuer, because he is the Deputy CEO for Backed Energy Trading and Business Development	According to Article 3(1)(25) of Regulation (EU) No 596/2014 of is considered a person discharging managerial responsibilities in Asset of ALTEO Plc.
b)	Initial notification/ Amendment	Initial notification
3.	Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor
a)	Name	ALTEO Energy Services Public Limited Company (ALTEO Plc.)
b)	LEI	529900PHL3J3ZRBC2J44
4.	Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been conducted
a)	Description of the financial instrument, type of instrument Identification code	ALTEO ordinary shares ISIN: HU0000155726
b)	Nature of the transaction	Selling The transaction is not linked to share option programs or any of the specific examples mentioned in Article 19(7) of Regulation (EU) No 596/2014 of the European Parliament and of the Council.
c)	Price(s) and volume(s)	4,506 HUF/share 4,630 HUF/share 4,610 HUF/share 4,650 HUF/share 4,640 HUF/share 4,554 HUF/share	7,072 pieces of shares 55 pieces of shares 591 pieces of shares 125 pieces of shares 540 pieces of shares 1,651 pieces of shares

d)	Aggregated information — Aggregated volume — Price	Price(s) Volume(s) 4,530,36 HUF/share 10,034 pieces of shares
e)	Date of the transaction	02.09.2025 11:30
f)	Place of the transaction	Budapest Stock Exchange
g)	Other information related to the transaction:	-

Budapest, 5 September, 2025

ALTEO Plc.

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