Summons to the Annual General Meeting of Shareholders in Castellum AB

At the Annual General Meeting of Shareholders in Castellum AB, on Thursday,
March 25, 2010, following proposals will, inter alia, be presented:

   * A distribution of SEK 3.50 per share and Tuesday, March 30, 2010 as the
     record day for distribution.
   * Mr. Jan Kvarnström, Mr. Per Berggren, Mrs. Marianne Dicander Alexandersson,
     Mrs. Ulla-Britt Fräjdin-Hellqvist, Mr. Christer Jacobson and Mr. Göran
     Lindén are proposed to be re-elected as members of the board of directors.
     In addition to this, Mr. Johan Skoglund (managing director and group
     executive director of JM AB) should be elected as member of the board of
     directors. Jan Kvarnström should be re-elected as chairman of the board of
     directors. Further, the remuneration to the members of the board of
     directors is proposed to be SEK 1,825,000 out of which SEK 475,000 should be
     allocated to the chairman of the board of directors and SEK 225,000 to each
     of the remaining members of the board of directors.
   * A new election committee shall be appointed in preparation for the annual
     general meeting 2011, in accordance with the previously applied model. This
     model entails that the chairman of the board of directors should be assigned
     to contact the three largest registered or otherwise known shareholders at
     the end of the third quarter in 2010 and to invite them to each appoint one
     member of the election committee. If such a shareholder should not wish to
     appoint a member, the fourth largest registered shareholder should be
     consulted and so on. The members appointed in accordance with the above,
     shall, together with the chairman of the board of directors, being
     responsible for the summoning procedure, constitute the election committee.
   * Introduction of a new incentive program to members of the executive
     management, ie executive group management, which in principle is a renewal
     of the three-year incentive program which has been applied by Castellum
     during several periods.
   * Authorisation for the board of directors to resolve to acquire and transfer
     the company's own shares until the next annual general meeting of
     shareholders.

Appendix: the Summons

Castellum is one of the major listed real estate companies in Sweden. The fair
value of the real estate portfolio amounts to approx. SEK 29 billion, and
comprises commercial properties. The real estate portfolio is owned and managed
by six wholly owned subsidiaries with strong local presence in five growth
regions: Greater Gothenburg, the Öresund Region, Greater Stockholm, Mälardalen
and Eastern Götaland. Castellum is listed on NASDAQ OMX Stockholm AB Large Cap.

For more information please contact
Jan Kvarnström, chairman of the Board of Directors. Tfn +49 160 906 01 899
Håkan Hellström, CEO. Tfn +46 705 60 74 56

www.castellum.se

Castellum is obligated to disclose this information due to requirements in the
Capital Markets Act and/or the Financial Instruments Trading Act.

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