Total Voting Rights

31 Dec 2007 07:00

Avacta Group plc (the "Company") Total Voting Rights

For the purposes of the provisions of the Financial Services Authority's Disclosure and Transparency Rules, the total number of ordinary shares of 0.1p each in the capital of the Company in issue as at the date of this notice is 800,432,077 with each share carrying the right to one vote.

There are no shares held in treasury.

Therefore, the total number of voting rights in the Company is 800,432,077.

The above figure may be used by shareholders of the Company 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 share capital of the Company under the Disclosure and Transparency Rules.

31st December 2007

For further information please contact:

Tim Sykes, Chief Financial Avacta Group plc Tel: 0870 835 4367 Officer

David Youngman WH Ireland Limited Tel: 0161 832 2174