Telephone Conference on Interim Report - May 4, at 15:00 (CEST)

Observer AB invites you to participate in a telephone conference on the interim report January-March 2006, on Thursday, May 4 at 15:00 (CEST), Niklas Flyborg, CEO, Gunilla Rudebjer, CFO and other managers will participate in the conference. In order to participate, please call one of the following numbers: UK dial in number: +44 (0) 20 7162 0125 US dial in number: +1 334 323 6203 Sweden dial in number: +46 8 505 201 14 State password: Observer Please note for Local Connect dial-in numbers – you must always dial the area code to enter the conference (e.g. even if you call from Stockholm you have to dial the area code “08”) During the telephone conference a presentation will be held. To access the presentation please us this link: http://wcc.webeventservices.com/view/wl/r.htm?e=23109&s=1&k=0A55863784082383243B10C9045C5C5A&cb=genesys The Interim Report will be published on Thursday May 4, at 8:30 am (CET). Replay Telephone replay will be available until May 10, 2006 Reply numbers: UK: +44 (0) 20 7031 4064 Sweden: +46 8 505 203 33 Access code: 703207 Observer AB (Publ.)