Cenergy Holdings S.A.

Major Shareholding Notification • Oct 21, 2024

REGULATED INFORMATION

PRESS RELEASE OF CENERGY HOLDINGS SA

Brussels, October 21, 2024

The enclosed information constitutes regulated information as defined in the Belgian Royal Decree of 14 November 2007 regarding the duties of issuers of financial instruments which have been admitted for trading on a regulated market.

Publication of a transparency notification

(Article 14, first paragraph, of the Law of 2 May 2007 on disclosure of major holdings)

1. Summary of the notification

Cenergy Holdings SA (Cenergy Holdings) announces that on October 18, 2024, it received a transparency notification from Viohalco SA (Viohalco). As a result of the capital increase by Cenergy Holdings, completion of which was announced by Cenergy Holdings on 15 October 2024, Viohalco's voting rights in Cenergy Holdings were diluted and crossed downwards the threshold of 75%, i.e. from 79.78% to 71.46% of the total voting rights of Cenergy Holdings (i.e. 71.43% directly held by Viohalco and 0.03% due to treasury shares of Cenergy Holdings, controlled entity by Viohalco).

In accordance with its obligation under article 14 of the Belgian Law of 2 May 2007 on the disclosure of significant shareholdings in listed companies, Cenergy Holdings publishes the content of the notification that it has received.

2. Content of the notification

The notification dated 17 October 2024 contains the following information:

• Reason for the notification: Passive crossing of a threshold
• Notification by: A parent undertaking or a controlling person
• Person subject to the notification requirement:

Viohalco SA	Avenue Marnix 30, 1000 Brussels, Belgium
Cenergy Holdings	Avenue Marnix 30, 1000 Brussels, Belgium

• Date on which the threshold is crossed: 15 October 2024
• Threshold that is crossed: 75%
• Denominator: 212,384,903 shares

• Details of the notification:

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
Viohalco SA	151,710,878	151,710,878		71.43%
Cenergy Holdings	0	67,103		0.03%
Subtotal	151,710,878	151,777,981		71.46%
	TOTAL	151,777,981	0	71.46%	0.00%

• Full chain of controlled undertakings through which the holding is effectively held: Viohalco SA controls Cenergy Holdings SA.

• Additional information:

Following a public offer in Belgium and Greece within the meaning of Article 2(d) of Regulation (EU) 1129/2017, and the private placements to certain institutional investors in various jurisdictions, Cenergy Holdings issued 22,222,222 new ordinary shares of no nominal value in the context of the share capital increase in an amount of €199,999,998.00 (including issue premium). Viohalco SA did not participate in the share capital increase. As a consequence, Viohalco's participation in Cenergy Holdings SA was diluted and Viohalco now holds 71.43% of the total share capital of Cenergy Holdings (corresponding to 71.46% voting rights due to treasury shares).

3. Miscellaneous

This press release may be consulted on the website of Cenergy Holdings via this link: https://cenergyholdings.com/newscategories/regulatory/.

This notification can be consulted on the website of Cenergy Holdings via this link: https://cenergyholdings.com/investors/shareholders-information/shareholders-information/.

Contacts

For further information, please contact:

Sofia Zairi Chief Investors Relations (+32) 22 240960 (+30) (210) 6787773 ir@cenergyholdings.com

About Cenergy Holdings

Cenergy Holdings is a Belgian holding company listed on both Euronext Brussels and Athens Stock Exchange, investing in leading industrial companies, focusing on the growing global demand of energy transfer, renewables and data transmission. The Cenergy Holdings portfolio consists of Corinth Pipeworks and Hellenic Cables, companies positioned at the forefront of their respective high growth sectors. Hellenic Cables is one of the largest cable producers in Europe, manufacturing power and telecom cables as well as submarine cables. Corinth Pipeworks is a world leader in steel pipe manufacturing for the energy sector and major producer of steel hollow sections for the construction sector. For more information, please visit our website at www.cenergyholdings.com.