Correction of Exchange Notice 51/08 Correction made to “warrants per underlying”. The correction is marked in bold in the enclosed list. Trading is suspended and will be resumed April 24th, 2008. As from April 22nd, 2008, a total of 20 warrants issued by UBS AG, London Branch will be included on the list for Warrants, plain vanilla. The instruments have been registered at VPC AB. Issuer: UBS AG, London Branch Type of security: Warrants of European type Execution: Automatic cash settlement on expiry date Term: As from April 22nd, 2008 to expiry date Market Maker: UBS AG, London Branch Please see enclosed list for detailed information. Contacts for the above information: Viktoria Orhamn +46 8 453 73 16
Derivatives: Correction, Listing of warrants issued by UBS AG, London Branch (54/08)
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