Directorate Change

24 April 2012

Microgen plc (the 'Company')

Confirmation of Non-Executive Directors Resignation Date

Following the Company's Annual General Meeting and as previously advised, the Company confirms that Mr Paul Davies and Mr Ralph Kanter have resigned from the Board with effect from today. The Company would like to take this opportunity to thank Mr Kanter and Mr Davies for their service on the Board.

This disclosure is made pursuant to paragraph 9.6.12 of the Listing Rules.

Contacts:

Anjum O'Neill, Company Secretary 020-7496-8100