Agenda for the Annual General Meeting of UBS AG on 2 May 2013

Regulatory News:

UBS AG (NYSE:UBS)(SWX:UBSN) today published the agenda for the Annual General Meeting of Shareholders (AGM) on 2 May 2013. The agenda items are as follows:

The invitation to the AGM with explanations of the agenda items can be viewed on the UBS website at www.ubs.com/agm. Voting results will also be posted on this webpage during the course of the AGM.

The UBS AG AGM will take place on 2 May 2013 at the Hallenstadion in Zurich-Oerlikon, beginning at 10:30 a.m.

Media attendance

Representatives of the media may register to attend the UBS AG AGM by returning the invitation on page 3 by 26 April 2013 at the latest.

You are invited to attend the UBS AG AGM, which will take place on 2 May 2013 at the Hallenstadion, Wallisellenstrasse 45, Zurich-Oerlikon, beginning at 10:30 a.m. Doors open to media representatives at 9:00 a.m.

For organizational reasons, you are required to register by 26 April 2013 at the latest. If you wish to attend please provide us with the information below, either by e-mail (mediarelations@ubs.com) or fax (+41-44-234 85 61). Once your registration has been received, we will send you a confirmation which should be presented at the AGM entrance.

If you have any questions, please contact Gérianne Cruz or Dominique Scheiwiller (+41-44-234 85 00).

Last name/first name:

Organization:

Address:

Telephone/fax:

E-mail:

Sincerely,

UBS AG