Withdrawal from PLUS Stock Exchange

The  Directors of the Company today announce the intention to withdraw from the PLUS Stock Exchange  on  31 May 2012.

In  light  of  the  decision by PLUS Markets Group plc to close the PLUS Stock Exchange,  and  taking  into account the poor level of liquidity and the resources required to maintain the listing, it was  felt  that the Company should withdraw from the PLUS Stock Exchange at the earliest opportunity.

The Directors will still keep shareholders informed of progress in the business and it shall continue to make announcements through its website, www.zetaplc.com.

No alternative  arrangements for dealing in the Company's shares are yet proposed by  the  Directors,  but alternative arrangements are being investigated and shareholders will be contacted with details of  trading options at the appropriate time.

Shareholders  representing  more  than 75% of the issued share capital  of  the  Company have  irrevocably undertaken  to  vote in favour of any resolution proposing a withdrawal. In light of this undertaking,  the PLUS  Regulation  team  has  granted  a derogation from the PLUS Rules requiring  the  Company  to  provide shareholders with an objection period of 10 business days.

However, for  the sake of good order, the Directors are notifying shareholders in advance of the  proposed delisting which is to take place 10 clear business days from the date of this announcement.

The Directors of Zeta are responsible for the contents of this announcement.