Additional listing: 2 May 2012

Application has been made to the Alternative Investment Market of the London Stock Exchange (“AIM”) for a block listing of 4,500,000 ordinary shares of 4p each.

These shares, ranking pari passu in all respects with the existing ordinary shares in issue, will be allotted pursuant to the rules of the Company’s Performance Share Plan (“the Plan”).

The shares will not all be allotted immediately but as and when required in accordance with the Plan rules.

It is expected that the shares will be admitted to trading on 4 May 2012.