CHANGE IN NUMBER OF SHARES AND VOTES IN KARO BIO (PUBL)

Stockholm, January 31, 2011 - Karo Bio AB (publ) (Reuters: KARO.ST) today announced with reference to Chapter 4, Section 9 of the Swedish Financial Instruments Trading Act (SFS 1991:980) that the company’s total number of shares as per January 31, 2011 amounts to 387 063 972, corresponding to an equal number of votes. The increase in the number of shares and votes results from an issue of 232 238 383 shares under Karo Bio’s rights issue that was announced on October 26, 2010. For further information please contact:Fredrik Lindgren, CEOMobile: +46 705 616 177 Erika Söderberg