98,8 percent degree of acceptance in Custos' redemption program

98.8 percent degree of acceptance in Custos' redemption program Shareholders in AB Custos (publ) ("Custos") have submitted 4,453,644 shares in Custos for redemption through the redemption offer that expired on November 8, 2001. A total of 13,360,932 shares in Perbio Science AB (publ) ("Perbio Science"), corresponding to a value of SEK 1.8 billion 1) will be transferred to Custos´ shareholders. Acceptance of redemption offer An extraordinary general meeting in Custos resolved on October 9, 2001 to issue redemption rights in Custos. Persons who on the record date of October 12, 2001 were shareholders in Custos received one redemption right for each Custos share held. Four redemption rights carried entitlement to redemption of one Custos share for payment in the form of three shares in Perbio Science. The redemption offer involved a total of 4,507,663 shares in Custos, corresponding to 13,522,989 shares in Perbio Science. The application period for the redemption offer expired on November 8, 2001. A total of 4,453,644 shares in Custos were tendered in the redemption offer carrying entitlement to distribution of 13,360,932 shares in Perbio Science. Accordingly, the degree of acceptance was 98.8 percent. On November 23, 2001, the Board of Directors intends to propose the extraordinary general meeting in Custos to decide on redemption of the Custos shares submitted through the redemption offer. Contingent upon the extraordinary general meeting making the necessary decisions, the number of Custos shares outstanding will amount to 13,570,897 2) . Trading in redemption shares and delivery of shares in Perbio Science Trading in Custos redemption shares, each carrying entitlement to three shares in Perbio Science begins on November 19, 2001 and concludes on November 28, 2001. Assuming that the extraordinary general meeting makes the necessary decisions, delivery of the shares in Perbio Science will occur on or about December 5, 2001. Commission-free sales The average sales proceeds in the commission-free sale of redemption rights amounted to SEK 42.61 per redemption right. The considerations paid for the redemption rights sold through the commission-free sales were reported to the shareholders about November 13, 2001. Stockholm, November 15, 2001 AKTIEBOLAGET CUSTOS (publ) Mikael Nachemson Chief Executive Officer For further information, contact Katarina Berg (+46 8 440 57 70) This notice is published in Swedish and English. In the event of any difference between the English version and the Swedish original, the Swedish version shall govern. The value was calculated based on the last paid price for Perbio Science shares on November 14, 2001. Assuming that the synthetic repurchased shares as at November 14, 2001 as mandated by the General Meeting on April 5, 2001 are redeemed. ------------------------------------------------------------ This information was brought to you by Waymaker http://www.waymaker.net The following files are available for download: http://www.waymaker.net/bitonline/2001/11/15/20011115BIT01100/bit0001.doc http://www.waymaker.net/bitonline/2001/11/15/20011115BIT01100/bit0001.pdf