Block Admission of Shares

9 November 2010

Ultrasis plc ("Ultrasis" or "the Company")

Block Admission of Shares

The Company has applied for a block admission of 39,600,000 ordinary shares to be issued when options are exercised under the Unapproved and EMI Share Option Schemes.

Under the block admission, the shares issued following exercise of options will be admitted to AIM as issued and Ultrasis will confirm the number of shares so admitted every six months.

Separately, on 31 July 2009 the Company applied for a block admission of 111,500,000 ordinary shares to be issued when options are exercised under the Unapproved and EMI Share Option Scheme. To date, no options have been exercised under this scheme and no shares admitted to trading under the block admission.

For further information please contact:

Nigel BrabbinsCEOE-Mail: [email protected] Telephone: +44 (0) 20 7535 2050Fax: +44 (0) 20 7535 2070

Geoff NashFinnCapNominated Adviser and Joint BrokerTelephone: +44 (0) 20 7600 1658

John WebbMarshall SecuritiesJoint BrokerTelephone: +44 (0) 207 490 3788

Karen White/Liam HerbertJBP Public RelationsE-Mail: [email protected], [email protected]

Telephone +44 (0) 117 9073400