Orange Belgium S.A.

Major Shareholding Notification • May 28, 2021

Regulated information

Transparency Declaration

Brussels, 28 May 2021 – 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 27 May 2021, Orange Belgium received a transparency declaration from Polygon Global Partners LLP, stating that, as of 20 May 2021, Polygon Global Partners LLP holds 1,657,000 shares and 1,546,000 swaps for a total of 3,203,000 voting rights, representing 5.34 % 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 4G+ 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

Ana Castaño Lopez	+32 468 46 95 31
Koen Van Mol	+32 495 55 14 99