Orange Belgium S.A.

Major Shareholding Notification • Feb 3, 2023

Regulated information

Transparency Declaration

Brussels, 3 February 2023 – 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 3 February 2023, Orange Belgium received a transparency declaration from UBS Group AG, stating that, as of 27 January 2023, UBS Group AG, holds 2,084,539 shares and 913,821 equivalent financial instruments for a total of 2,998,360 voting rights, representing 5.00 % of the total voting rights of the Company.

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

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

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