Posting of Annual Report and Notice of AGM

8 March 2013

Microgen plc (the "Company")

Posting of Annual Report and Notice of Annual General Meeting

The Company confirms that the Annual Report for the year ended 31 December 2012 has today been posted to shareholders together with the Notice of Annual General Meeting and the Form of Proxy. The Annual General Meeting will be held at 9.00 am on Monday 13 May 2013 at Old Change House, 128 Queen Victoria Street, London, EC4V 4BJ.

In compliance with Listing Rule 9.6.1 a copy of each of these documents has been submitted to the UK Listing Authority via the National Storage Mechanism and will be available in due course for inspection at www.hemscott.com/nsm.do.

Copies of the Annual Report for the year ended 31 December 2012 and the Notice of Annual General Meeting are publically available on the Company's website at www.microgen.com.

If you have any queries please contact:

Microgen plc

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

www.microgen.com