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 which

may 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 Norges Bankthe notification obligation: iii 4. Full name of shareholder(s) (if N/Adifferent from 3.):iv 5. Date of the transaction and date 06 March 2013on which the threshold is crossed orreached: v 6. Date on which issuer notified: 08 March 2013 7. Threshold(s) that is/are crossed Above 3%or reached: vi, vii 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 shares voting rights xthe ISIN CODE Shares Voting rights Rights Direct Direct xi Indirect Direct Indirect xii Ordinary 3,793,435 3,793,435 3,811,835 3,811,835 3.01%shares of £0.10 nominalvalue each GB0001528156 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. Not applicable

C: Financial Instruments with similar economic effect to Qualifying FinancialInstruments xv, xvi

Resulting situation after the triggering transaction Type of Exercise Expiration Exercise/ Number of voting % of voting financial price date xvii Conversion rights instrument rights xix, xx instrument period refers to xviii Nominal Delta Not applicable Total (A+B+C) Number of voting rights Percentage of voting rights 3,811,835 3.01%

9. Chain of controlled undertakings through which the voting rights and/or thefinancial instruments are effectively held, if applicable: xxi

N/A 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: None 14. Contact name: Mr Trevor Bradbury 15. Contact telephone number: 0118 932 0123