Total Voting Rights

Stem Cell Sciences plc
21 December 2006

                                                                21 December 2006

                       Stem Cell Sciences plc (AIM:STEM)
                                (the "Company")

                              Total Voting Rights

For the purposes of the transitional provisions of the Financial Services
Authority's Disclosure and Transparency Rules, the Company's total issued share
capital at the date of this notice is 22,301,195 ordinary shares

The Company's issued share capital consists of 22,301,195 ordinary shares of
£0.01 each, with one voting right per share. There are no shares held in
treasury.

The total number of voting rights in the Company is therefore 22,301,195.

The above figure of 22,301,195 may be used by shareholders as the denominator
for the calculations by which they will determine if they are required to notify
their interest in, or a change to their interest in, the Company, under the
Disclosure and Transparency Rules.

Enquiries:

Stem Cell Sciences plc                                             0131 662 9829
Sue Furber, Director of Finance and Company Secretary

Weber Shandwick Square Mile                                        020 7067 0700
Louise Robson or James White




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