Holding(s) in Company

Radstone Technology PLC
15 June 2006


The Company has received the following notifications:

                                               M&G Investment Management Limited
                                                          Laurence Pountney Hill
                                                                          London
                                                                        EC4R 0HH

14 June 2006


The Company Secretary

Radstone Technology plc

Water Lane

Towcester

Northamptonshire

NN12 6JN


Fax: [phone]


Dear Sir/Madam,


Companies Act 1985 (as amended):

Disclosures of Interests in Shares


In accordance with Part VI of the Companies Act 1985 (as amended) (the "Act"),
we write to inform you that Prudential plc and certain of its subsidiary
companies have a notifiable interest in the issued share capital of your company
as detailed in the attached schedule


For the purposes of S210 of the Act, the address for those companies identified
herein (including in the attached schedule) is Laurence Pountney Hill, London,
EC4R 0HH.


Yours faithfully

Lara Shitta-Bey

For and on behalf of Prudential plc

Direct Line: 020 7548 2293

Direct Fax: [phone]



           Notifiable Position Report for RADSTONE TECH. ORD GBP0.125

                               As at 13 June 2006


Percentage holdings are calculated using an issued share capital of 30,336,640
ORD GBP0.125 shares


Registered Holder                Holding               %

Prudential plc                 1,444,834            4.76         Total Notifiable Interest

  PRUCLT HSBC GIS NOM(UK) 
    PAC AC                     1,201,240

  PRUCLT HSBC GIS NOM(UK) 
    PPL AC                       243,594



The Prudential Assurance 
   Company                     1,444,834            4.76

PRUCLT HSBC GIS NOM(UK) PAC AC 1,201,240

PRUCLT HSBC GIS NOM(UK) PPL AC   243,594


                      This information is provided by RNS
            The company news service from the London Stock Exchange                BBBRF