Holding(s) in Company

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARESi 1. Identity of the issuer or the underlying Interserve Plcissuer of existing shares to which votingrights are attached: ii 2 Reason for the notification (please tick the appropriate box or boxes): An acquisition or disposal of voting rights X An acquisition or disposal of qualifying financial instruments whichmay result in the acquisition of shares already issued to which votingrights are attached An acquisition or disposal of instruments with similar economic effectto qualifying financial instruments An event changing the breakdown of voting rights Other (pleasespecify): 3. Full name of person(s) subject to JPMorgan Asset Management Holdings Inc.the notification obligation: iii 4. Full name of shareholder(s) (if JPMorgan Asset Management (UK) Limiteddifferent from 3.):iv 5. Date of the transaction and date 23 September 2013on which the threshold is crossed orreached: v 6. Date on which issuer notified: 25 September 2013 7. Threshold(s) that is/are crossed Total number of voting rights fell belowor reached: vi, vii 5% 8. Notified details:A: Voting rights attached to shares viii, ix Class/type of Situation previous Resulting situation aftershares to the triggering the triggering transaction transaction if possible Number Number Number Number of % of votingusing of of of voting rights xthe ISIN CODE Shares Voting shares rights Rights Direct Direct xi Indirect Direct Indirect xii GB0001528156 6,404,989 6,404,989 Below 5% Below 5% B: Qualifying Financial Instruments Resulting situation after the triggering transaction Type of financial Expiration Exercise/ Number of voting % of voting instrument date xiii Conversion Period rights that may be rights xiv acquired if the instrument is exercised/ converted. C: Financial Instruments with similar economic effect to Qualifying FinancialInstruments xv, xvi Resulting situation after the triggering transaction Type of financ Exercise Expiration Exercise/ Number of voting % of voting ial price date xvii Conversion rights instrument rights xix, xx instrument period refers to xviii Nominal Delta Contract for 676,056 0.52% Difference Total (A+B+C) Number of voting rights Percentage of voting rights Below 5% Below 5% 9. Chain of controlled undertakings through which the voting rights and/or thefinancial instruments are effectively held, if applicable: xxi Total disclosable holding for JPMorgan Asset Management Holdings Inc: Below 5% JP Morgan Asset Management (UK) Limited J.P. Morgan Investment Management Inc. Proxy Voting: 10. Name of the proxy holder: N/A 11. Number of voting rights proxy N/Aholder will cease to hold: 12. Date on which proxy holder will N/Acease to hold voting rights: 13. Additional information: N/A 14. Contact name: Mr Trevor Bradbury 15. Contact telephone number: 0118 932 0123