KELLER GROUP PLC: Holding(s) in Company

For filings with the FSA include the annex

For 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 Plc of existing shares to which voting rights 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 voting rights are attached

An acquisition or disposal of instruments with similar economic effect to

qualifying financial instruments

An event changing the breakdown of voting rights

Other (please specify):

3. Full name of person(s) subject to the Schroders plc notification obligation:iii

4. Full name of shareholder(s)

(if different from 3.):iv

5. Date of the transaction and date on

which the threshold is crossed or 15.02.13 reached: v

6. Date on which issuer notified: 18.02.13

7. Threshold(s) that is/are crossed or Below 5% reached: vi, vii

        
                                                                                
        
    8. Notified details:                                                            
                        
                                                                                

A: Voting rights attached to shares viii, ix

Class/type Situation previous Resulting situation after the triggering transaction of to the triggering

shares transaction

if possible Number Number Number Number of voting

% of voting rights using of of of shares rights

x the ISIN Shares Voting

CODE Rights

Direct Direct xi Indirect xii Direct Indirect

Ordinary

GB0004866223 4,025,380 3,354,412 3,280,627 N/A 3,148,747 N/A 4.895%

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of Expiration Exercise/ Number of voting

% of voting financial date xiii Conversion Period xiv rights that may be

rights instrument acquired if the

                        
                                                             instrument is      
                        

exercised/ converted.

C: Financial Instruments with similar economic effect to Qualifying Financial

Instruments xv, xvi

Resulting situation after the triggering transaction

Type of Exercise price Expiration Exercise/ Number of voting rights % of voting financial date xvii Conversion instrument refers to rights xix, xx instrument period

                        
                                                xviii                           
                        
                                                                                
                        
                                                                                
       Nominal Delta      
                                                                                
                        
                                                                                
                        
                                                                                
                        
                                                                                
                        
                                                                                

Total (A+B+C)

Number of voting rights Percentage of voting rights

3,148,747 4.895%

                        
                                                                                
                        
    9. Chain of controlled undertakings through which the voting rights and/or the  

financial instruments are effectively held, if applicable: xxi

Schroder Investment Management Limited 2,614,360

4.065%

Schroder Investment Management North America Limited 534,387 0.830%

Proxy Voting:

10. Name of the proxy holder:

11. Number of voting rights proxy holder will cease

to hold:

12. Date on which proxy holder will cease to hold

voting rights:

The shares referred to in section 9 are held in portfolios 13. Additional information: managed by those firms on a discretionary basis for

                              clients under investment management agreements.   
        
                                                                                
        
                                                                                

14. Contact name:

        
                                                     Liz Friedman               
        
                                                                                
        
                                                                                

15. Contact telephone number:

        
                                                    020 7658 6000               
        
                                                                                
        

END

-0- Feb/18/2013 11:11 GMT