Proximus SA — Major Shareholding Notification 2011

Jun 20, 2011

Brussels, 20 June 2011

Belgacom: Progress on the acquisition of own shares program Treasury shares crossed the 5% threshold

Publication on the basis of Article 207 of the Royal Decree of 30 January 2001 executing the Belgian Company Code.

Further to the share buyback program announced on 6 June 2011, Belgacom announces today that during the period 13 June until 17 June 2011, it acquired 354,000 own shares on the regulated market of NYSE Euronext Brussels. To date, approximately 35% of the first tranche of EUR 50 million of the share buyback program has been completed.

Date of acquisition	Number of shares	Average Price (EUR)	Highest Price (EUR)	Lowest Price (EUR)	Total (Eur)
13 June 2011	41,000	24.12	24.34	23.93	989,047
14 June 2011	61,000	24.24	24.46	24.09	1,478,695
15 June 2011	98,000	24.09	24.38	23.99	2,360,350
16 June 2011	72,000	23.74	23.90	23.60	1,709,258
17 June 2011	82,000	24.84	24.08	23.66	1,954,913

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Belgacom: Shareholder Notification

As a result of the above, Belgacom SA announces today that it made a notification of a significant shareholding in accordance with Belgian Act of 2 May 2007 on the disclosure of significant shareholdings in issuers whose securities are admitted to trading on a regulated market and containing various provisions.

As a result of the acquisition of own shares, Belgacom's ownership of own shares crossed the threshold of 5% of the outstanding shares on 17 June 2011. As at that day, Belgacom held in the aggregate 16,901,625 shares, representing 5.00% of the total number of outstanding shares. Pursuant to Belgian law, the voting rights attached to own shares held by Belgacom are suspended.

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For more information, contact the Belgacom Investor Relations department: Nancy Goossens: +32 2 202 8241 Ann Maes: +32 2 202 2618

www.belgacom.com