MASTERPLAST Nyilvánosan Működő Részvénytársaság

Remuneration Information • Jul 29, 2025

ANNOUNCEMENT

In compliance with its obligation of extraordinary disclosure of information as set out in Act CXX of 2001 on the Capital Market and Decree No. 24/2008 (VIII. 15.) of the Minister of Finance on the detailed regulations on information obligation in connection with the securities trade on the stock exchange, ALTEO Energiaszolgáltató Nyilvánosan Működő Részvénytársaság (registered office: H-1033 Budapest, Kórház u. 6-12, company registration number: Cg.01-10-045985) (hereinafter "Company" or "ALTEO") hereby provides the following information:

The Company hereby informs investors that ALTEO has carried out an own share transaction in connection with the expansion of the 2026 ESOP General Remuneration Policy ("Remuneration Policy") adopted on June 26, 2024, with a view to the expansion of the scope of participants.

As a result, 7,370 ALTEO ordinary shares (ISIN code: HU0000155726) were transferred from the Company to the ALTEO Employee Share Ownership Program Organization.

Following the transfer, ALTEO owns a total of 243,248 ALTEO ordinary shares (ISIN code: HU0000155726), taking into account the 250,618 ALTEO ordinary shares already held by it.

Budapest, July 2, 2025

ALTEO Nyrt.