Holding(s) in Company

For filings with the FCA include the annexFor filings with issuer exclude the annex TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARESi 1. Identity of the issuer or the underlying issuer Keller Group PLCof existing shares to which voting rights areattached:ii GB0004866223 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 resultin the acquisition of shares already issued to which voting rights are attached An acquisition or disposal of instruments with similar economic effect toqualifying financial instruments An event changing the breakdown of voting rights Other (please specify): 3. Full name of person(s) subject to the Norges Banknotification obligation:iii 4. Full name of shareholder(s) N/A (if different from 3.):iv 5. Date of the transaction and date onwhich the threshold is crossed or 09 September 2014reached: v 6. Date on which issuer notified: 10 September 2014 7. Threshold(s) that is/are crossed or Above 3%reached: vi, vii 8. Notified details: A: Voting rights attached to shares viii, ix Class/type Situation previous Resulting situation after the triggering transactionof to the triggeringshares transaction if possible Number Number Number Number of voting % of voting rightsusing of of of shares rights xthe ISIN Shares VotingCODE Rights Direct Direct xi Indirect xii Direct Indirect 2,068,377 2,068,377 2,209,002 2,209,002 3.10%GB0004866223 B: Qualifying Financial Instruments Resulting situation after the triggering transaction Type of Expiration Exercise/ Number of voting % of votingfinancial date xiii Conversion Period xiv rights that may be rightsinstrument acquired if the instrument is exercised/ converted. N/A N/A N/A N/A N/A C: Financial Instruments with similar economic effect to Qualifying FinancialInstruments xv, xvi Resulting situation after the triggering transaction Type of Exercise price Expiration Exercise/ Number of voting rights % of votingfinancial date xvii Conversion instrument refers to rights xix, xxinstrument period xviii Nominal Delta N/A N/A N/A N/A N/A N/A N/A Total (A+B+C) Number of voting rights Percentage of voting rights 2,209,002 3.10% 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: Norges Bank 11. Number of voting rights proxy holder will cease N/Ato hold: 12. Date on which proxy holder will cease to hold N/Avoting rights: 13. Additional information: Notification using the total voting rights figure of 71,259,813 14. Contact name: Kerry Porritt 15. Contact telephone number: 0207 616 7575