Banque nationale de Belgique

Pre-Annual General Meeting Information • May 6, 2011

2011-05-06

Summons to the Ordinary General Meeting of the National Bank of Belgium

Regulated information distributed by the National Bank of Belgium on 6 May 2011

Summons to the Ordinary General Meeting of shareholders of the National Bank of Belgium plc, which will be held at the Bank, in 1000 Brussels, rue Montagne aux Herbes Potagères/Warmoesberg 61, on Monday 30 May 2011 at 11 a.m.

Shareholders are requested to arrive no later than 10:45 a.m. to allow for admittance formalities to be completed and the attendance list to be signed.

Agenda for the Ordinary General Meeting

1° Introductory presentation by the Governor; 2° Report on the activities of the financial year ended 31 December 2010; 3° Statutory elections: Proposals for decisions: Regents: renewal of the office of Messrs Didier Matray and Karel Van Eetvelt; election of Mr Jean-François Cats and Mrs Sonja De Becker to replace Messrs Jacques Forest and Piet Vanthemsche, respectively; Censors: renewal of the office of Messrs Michel Moll, Jan Vercamst and Jean Eylenbosch and Mrs Francine Swiggers; election of Mr David Szafran to replace Mr Jean-François Cats. 4° Appointment of a company auditor: Proposal for decision, upon proposal from the audit committee: appointment of Ernst & Young

Bedrijfsrevisoren bcvba/Réviseurs d'Entreprises sccrl, for an annual fee of 50,000 euro.

Formalities for attending the Ordinary General Meeting

Shareholders whose shares are registered with the Bank (in their name or on an account) and who wish to attend the General Meeting or be represented at it must inform the Bank, by Wednesday 25 May 2011 at the latest, in accordance with the letter that has been sent to them.

Shareholders whose dematerialised shares are registered with another bank or financial institution and who wish to attend the General Meeting or be represented at it must request their financial establishment to freeze all their shares or a part of them until the date of the General Meeting and to send the Bank, for the attention of the Securities Service, a certificate stating that these shares shall not be available until the end of the General Meeting. This certificate must reach the Bank by Wednesday 25 May 2011 at the latest.

Shareholders holding bearer shares who wish to attend the General Meeting or be represented at it must deposit their shares with the Bank (either at the Head Office or one of the agencies) by Wednesday 25 May 2011 at the latest. They may also deposit these with another bank which must then send the National Bank a certificate of deposit. This certificate must reach the Bank by Wednesday 25 May 2011 at the latest, for the attention of the Securities Service.

Shareholders will receive a letter from the Bank to confirm that their shares have been frozen or deposited.

Shareholders who wish to be represented by a third party at the General Meeting must complete the abovementioned registration formalities and fill up a proxy form which must reach the Bank no later than Friday 27 May 2011, for the attention of the Securities Service. In accordance with the Bank's statutes, proxy papers must be countersigned by the proxy. With the exception of corporate bodies and without prejudice to the rules of legal representation, a shareholder may have himself represented only by a proxy who is himself entitled to vote. Proxy forms are available at all of the Bank's branches as well as on its website at the following address: www.nbb.be - Shareholders - General Meeting.

boulevard de Berlaimont 14 1000 Brussels

phone + 32 2 221 46 28 www.nbb.be

For practical reasons, and unless a specific request is made to the Securities Service (either by e-mail to securities@nbb.be or by telephone on 02 221 46 56 or 02 221 22 85 or by fax to 02 221 31 19) by Friday 27 May 2011 at the latest, each shareholder shall be given one voting card only, valid for votes in his own name and for his votes by proxy.

Shareholders wishing to submit questions in writing prior to the General Meeting are requested to send them either by e-mail to sdsafe@nbb.be, by fax to 02 221 31 24, or by post to the National Bank of Belgium, Secretariat, boulevard de Berlaimont 14, 1000 Brussels, no later than 6:00 p.m. on Tuesday 24 May 2011.

Note

Shareholders who complete the formalities to attend the Ordinary General Meeting of 30 May 2011 or be represented at it are not automatically registered for the Extraordinary General Meeting of shareholders that will follow. Shareholders wishing to attend or be represented at the Extraordinary General Meeting of 30 May 2011 should submit an additional registration in accordance with the instructions that the Bank will be issuing on 12 May 2011.

Brussels, 6 May 2011

THE GOVERNOR, Luc Coene NATIONAL BANK OF BELGIUM Public limited liability company RLP Brussels - Company number 0203.201.340 Registered office: boulevard de Berlaimont 14, 1000 Brussels