Elia Group NV/SA

Major Shareholding Notification • Apr 11, 2025

PRESS RELEASE | 11 April 2025

Transparency notification – Publi-T / NextGrid Holding

BRUSSELS - BERLIN | 6.00 PM (CEST) – regulated information

1. Summary of the notification

Pursuant to Article 14 of the law of 2 May 2007 on the disclosure of large shareholdings, Elia Group SA/NV announces that it has received a transparency notification dated 9 April 2025 from Publi-T CV/SC and NextGrid Holding SA/NV (both having their registered offices at Ravensteingalerij 4, box 2, 1000 Brussels).

Publi-T CV/SC has notified that, following an acquisition of Elia Group shares with voting rights, its shareholding in Elia Group (combined with the shareholding of its subsidiary NextGrid Holding SA/NV) has crossed the 45%-threshold on 8 April 2025.

On 8 April 2025, Publi-T CV/SC and NextGrid Holding SA/NV owned 49 313 525 Elia Group shares with voting rights, (versus 32 931 025 shares, in the previous notification dated 24 March 2025) representing 45.21% of the total number of shares issued by the company (109 072 607) (versus 44.79% in the previous notification dated 24 March 2025).

2. Content of the notification

The transparency notification dated 9 April 2025 includes the following information:

• Reason for the notification: Acquisition or disposal of voting securities or voting rights.
• Notification by: A parent undertaking or a controlling person.
• Person subject to the notification requirement:

Name	Address (for legal entities)
Publi-T CV/SC	Ravensteingalerij 4, bus 2, 1000 Brussel
NextGrid Holding SA/NV	Ravensteingalerij 4, bus 2, 1000 Brussel

• Date on which the threshold is crossed: 8 April 2025
• Threshold crossed (in %): 45%.
• Denominator: 109 072 607.

• Notified details:

A) Voting rights	Previous notification	After the transaction
	# of voting rights	# of voting rights		% of voting rights
Holders of voting rights		Linked to securities	Not linked to the securities	Linked to securities	Not linked to the securities
Publi-T CV/SC - soort B	0	0		0,00%
Publi-T CV/SC - soort C	0	459.013		0,42%
NextGrid Holding SA/NV - soort B	90.193	133.805		0,12%
NextGrid Holding SA/NV - soort C	32.840.832	48.720.707		44,67%
Subtotaal	32.931.025	49.313.525		45,21%
TOTAAL		49.313.525	0	45,21%	0,00%

B) Equivalent financial instruments	After the transaction
Holders of equivalent financial instruments	Type of financial instrument		Expiration date Exercise period or date	# of voting rights that may be acquired if the instrument is exercised	% of voting rights	Settlement
TOTAAL				0	0,00%
	TOTAL (A & B)			# of voting rights	% of voting rights
			BEREKENEN	49.313.525	45,21%

• Chain of controlled undertakings through which the holding is effectively held:

Publi-T owns the majority of the shares of NextGrid Holding SA/NV and is the sole controlling shareholder. No natural or legal person has ultimate control over Publi-T CV/SC.

• Additional information: None.

3. Further information

This press release and the detailed transparency notification are available on Elia Group SA/NV's website.

An updated overview of the Elia Group SA/NV large shareholdings is available also on Elia Group SA/NV's website.

About Elia Group

One of Europe's top five TSOs

Elia Group is a key player in electricity transmission. We ensure that production and consumption are balanced around the clock, supplying 30 million end users with electricity. Through our subsidiaries in Belgium (Elia) and the north and east of Germany (50Hertz), we operate 19,741 km of high-voltage connections, meaning that we are one of Europe's top 5 transmission system operators. With a reliability level above 99%, we provide society with a robust power grid, which is important for socioeconomic prosperity. We also aspire to be a catalyst for a successful energy transition, helping to establish a reliable, sustainable and affordable energy system.

We are making the energy transition happen

By expanding international high-voltage connections and incorporating ever-increasing amounts of renewable energy into our grid, we are promoting both the integration of the European energy market and the decarbonisation of society. We also continuously optimise our operational systems and develop new market products so that new technologies and market parties can access our grid, thus further facilitating the energy transition.

In the interest of society

As a key player in the energy system, Elia Group is committed to working in the interest of society. We are responding to the rapid increase in renewable energy by constantly adapting our transmission grid. We also ensure that investments are made on time and within budget, with a maximum focus on safety. In carrying out our projects, we manage stakeholders proactively by establishing two-way communication channels between all relevant parties very early on in the development process. We also offer our expertise to different players across the sector in order to build the energy system of the future.

International focus

In addition to its activities as a transmission system operator, Elia Group provides consulting services to international customers through its subsidiary Elia Grid International. In recent years, the Group has launched new non-regulated activities such as re.alto - the first European marketplace for the exchange of energy data via standardised energy APIs - and WindGrid, a subsidiary which will continue to expand the Group's overseas activities, contributing to the development of offshore electricity grids in Europe and beyond.

The legal entity Elia Group is a listed company whose core shareholder is the municipal holding company Publi-T/NextGrid Holding.

eliagroup.eu

For further information, please contact:

Investor Relations

Yannick Dekoninck | M +32 478 90 13 16 | investor.relations@elia.be Stéphanie Luyten | M +32 467 05 44 95 | investor.relations@elia.be Corporate Communication Marleen Vanhecke | M +32 486 49 01 09 | marleen.vanhecke@elia.be

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