MASTERPLAST Nyilvánosan Működő Részvénytársaság

Regulatory Filings • Dec 1, 2025

Announcement

Extraordinary information

In compliance with its obligation of extraordinary disclosure of information under Section 55 of Act CXX of 2001 on the Capital Market and Section I.24 of Annex 4 of Decree No. 24/2008 (VIII. 15.) of the Minister of Finance, ALTEO Energiaszolgáltató Nyilvánosan Működő Részvénytársaság (registered office: H-1117 Budapest, Dombóvári út 25., company registration number: Cg.01-10-045985) (hereinafter "Company" or "ALTEO") hereby provides the following information.

From 1 December 2025, ALTEO will take over the balance group management for the MOL Group's entire domestic electricity consumption, delivered through ALTEO's proprietary management and trading platform. In addition, ALTEO will provide supplementary electricity trading services via the ARTEMIS platform to support MOL's Hungarian electricity supply and trading operations, amounting to roughly 2,000 GWh annually.

The cooperation opens a new dimension: in the future, the platform will also support the management of solar power plants and energy storage assets to be owned by MOL. ALTEO's innovative solution is available not only to MOL, but to all electricity producers, storage operators and aggregators as well; its tools and advanced functionalities enable any market participant to optimise its energy management efficiently.

Budapest, 1 December 2025

ALTEO Plc.

Disclaimer: All information contained within this article is for information purposes only, and shall notbe considered an official translation of the official communication referred to herein. This document does not include the integral wording of the official communication referred to herein, the original Hungarian language version of it remains to be the solely legally binding material in the subject matter.For further information, please do not hesitate to contact us.