Trace Group PLC 25 May 2007 Trace Group plc 25 May 2007 Recommended cash offer for Trace Group plc ('Trace' or the 'Company') by Microgen plc ('Microgen') On 23 May 2007, the independent directors of Trace (being, Mr. Daniel Chapchal, Professor David Begg, Mr. Colin Clarke and Mr. Robin Woodall ('the Independent Directors')) announced that they had decided that it was in the best interests of Trace shareholders to adjourn, until 4 June 2007, the Trace Court Meeting and the Trace Extraordinary General Meeting (together, 'the Meetings') convened to consider the offer from Tulip Holdings Limited ('Tulip') to acquire Trace at 135 pence in cash per ordinary Trace share to be effected by way of a scheme of arrangement pursuant to section 425 of the Companies Act 425 ('Tulip Scheme'). The purpose of the adjournment of the Meetings was, inter alia, to allow Microgen time either to announce a formal offer for the share capital of Trace (at a price of 155 pence in cash per ordinary Trace share) or withdraw its interest in acquiring Trace. A formal offer announcement was issued by Microgen today setting out the terms and conditions of its cash offer for Trace at 155 pence in cash per ordinary Trace share (the 'Microgen Offer'). The Independent Directors have unanimously recommended the Microgen Offer. The Trace Independent Directors have today obtained an Order of the Chancery Division of the High Court in relation to Trace and the Scheme which contains the following direction: 'THE COURT DIRECTS that in the event an offer is received to acquire the entire issued share capital of the Company for a price of 155 pence or higher and which the said Independent Directors propose to recommend the Chairman of the Court Meeting is directed to adjourn the Court Meeting sine diem with the consequence that the proposals for the Scheme will automatically lapse upon the said Independent Directors recommending an offer for each Trace Share at 155 pence or more.' Enquiries: Trace Group plc Telephone: +44 (0) 20 7825 1000 Daniel Chapchal Telephone: +44 (0) 7836 512 549 David Begg Telephone: +44 (0) 20 7825 1000 Shore Capital and Corporate Limited Telephone: +44 (0) 20 7408 4090 (Financial adviser to Trace) Alex Borrelli Pascal Keane Shore Capital and Corporate Limited, which is authorised and regulated in the United Kingdom by the Financial Services Authority, is acting exclusively for Trace and no one else in connection with the Microgen Offer and will not be responsible to anyone other than Trace for providing the protections afforded to clients of Shore Capital and Corporate Limited nor for providing advice in relation to the Microgen Offer, the content of this announcement or any matter referred to herein. Dealing disclosure requirements Under the provisions of Rule 8.3 of the City Code on Takeovers and Mergers (the 'Code'), if any person is, or becomes, 'interested' (directly or indirectly) in 1 per cent. or more of any class of 'relevant securities' of Trace Group plc, all 'dealings' in any 'relevant securities' of that company (including by means of an option in respect of, or a derivative referenced to, any such 'relevant securities') must be publicly disclosed by no later than 3.30 pm (London time) on the London business day following the date of the relevant transaction. This requirement will continue until the date on which any offer becomes, or is declared, unconditional as to acceptances, lapses or is otherwise withdrawn or on which the 'offer period' otherwise ends. If two or more persons act together pursuant to an agreement or understanding, whether formal or informal, to acquire an 'interest' in 'relevant securities' of Trace Group plc, they will be deemed to be a single person for the purpose of Rule 8.3. Under the provisions of Rule 8.1 of the Code, all 'dealings' in 'relevant securities' of Trace Group plc by Trace Group plc, Tulip Holdings Limited or Microgen plc, or by any of their respective 'associates', must be disclosed by no later than 12.00 noon (London time) on the London business day following the date of the relevant transaction. A disclosure table, giving details of the companies in whose 'relevant securities' 'dealings' should be disclosed, and the number of such securities in issue, can be found on the Takeover Panel's website at www.thetakeoverpanel.org.uk 'Interests in securities' arise, in summary, when a person has long economic exposure, whether conditional or absolute, to changes in the price of securities. In particular, a person will be treated as having an 'interest' by virtue of the ownership or control of securities, or by virtue of any option in respect of, or derivative referenced to, securities. Terms in quotation marks are defined in the Code, which can also be found on the Panel's website. If you are in any doubt as to whether or not you are required to disclose a 'dealing' under Rule 8, you should consult the Panel. This information is provided by RNS The company news service from the London Stock Exchange