Orange Belgium S.A.

Major Shareholding Notification • Mar 20, 2025

Regulated information

Transparency Declaration

Brussels, March 20, 2025 – Orange Belgium hereby discloses information in accordance with Article 14 of the Law of 2 May 2007 and the related Royal Decree of 14 February 2008:

On March 19, 2025, Orange Belgium received a transparency declaration from UBS Group AG stating that, as of March 19, 2025, UBS Group AG, holds 1 237 940 shares and 1 798 360 equivalent financial instruments for a total of 3 036 300 voting rights, representing 4.5 % of the total voting rights of the Company.

The disclosure obligation is due to the total holdings of UBS Group AG in voting rights (section 10 A), held directly by controlled undertakings, going below 3%.

An increase above (or decrease below) the following thresholds requires a declaration to Orange Belgium and the Financial Services and Markets Authority (FSMA):

• 1. 3 % statutory threshold, as set out by the articles of association of the Company;
• 1. 5 % or each multiple of 5 %, as set out by the Belgian law.

The complete text of this transparency declaration is also available on the « Shareholders & Investors » section of our website https://corporate.orange.be/en/financial-information.

About Orange Belgium

As a convergent player, we provide mobile telecommunication services, internet and TV to private clients, as well as innovative mobile and fixed line services to businesses. Our high-performance mobile network supports 2G, 3G, 4G and 5G technology and is the subject of ongoing investments.

Orange Belgium is a subsidiary of Orange Group, one of the world's leading telecommunications operators with a presence in 27 countries. Orange is also a leading provider of global IT and telecommunication services to multinational companies, under the brand Orange Business Services.

Orange Belgium is listed on the Brussels Stock Exchange (OBEL).

More information on: corporate.orange.be, www.orange.be or follow us on Twitter: @pressOrangeBe.

Contact investors Bernard Petit +32 495 55 90 96 Koen Van Mol +32 495 55 14 99

Orange Belgium is one of the leading telecommunication operators in Belgium and in Luxembourg through its subsidiary Orange Communications Luxembourg.