Holding(s) in Company

Radstone Technology PLC
14 July 2005

The Company has received the following notifications:



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

7 July 2005


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
in the attached schedule is Laurence Pountney Hill, London ,EC4R 0HH.


Yours faithfully


Richard Harding

For and on behalf of Prudential plc



Direct Line: 020 7548 3183

Direct Fax: [phone]


           Notifiable Position Report for RADSTONE TECH. ORD GBP0.125

                               As at 6 July 2005


Percentage holdings are calculated using an issued share capital of 30,299,640
ORD GBP0.125 shares



Registered Holder                    Holding                %

Prudential plc                     4,276,439             14.11       Total Notifiable Interest

BK OF NEW YORK (NOMS) LTD/636922     663,873

CHASE NOMS LTD                        19,428

NORTRUST NOMINEE LTD A/C MHFO1         8,482

NORTRUST NOMINEE LTD A/C MKMO1       814,565

NORTRUST NOMS LTD A/C MEL01          375,336

NORTRUST NOMS LTD A/C PUQ01          801,688

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

PRUCLT HSBC GIS NOM(UK) PPL AC       391,827



M&G Group Limited                  3,612,566             11.92

CHASE NOMS LTD                        19,428

NORTRUST NOMS LTD A/C MHF01            8,482

NORTRUST NOMS LTD A/C MKM01          814,565

NORTRUST NOMS LTD A/C MEL01          375,336

NORTRUST NOMS LTD A/C/ PUQ01         801,688

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

PRUCLT HSBC GIS NOM(UK) PPL AC       391,827



M&G Investment Management Ltd      3,604,084             11.89

CHASE NOMS LTD                        19,428

NORTRUST NOMINEES LTD A/C MKM01      814,565

NORTRUST NOMS LTD A/C MEL01          375,336

NORTRUST NOMS LTD A/C/ PUQ01        801,688

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

PRUCLT HSBC GIS NOM(UK) PPL AC      391,827



M&G Limited                       3,612,566              11.92

CHASE NOMS LTD                       19,428

NORTRUST NOMS LTD A/C MHF01           8,482

NORTRUST NOMS LTD A/C MKM01         814,565

NORTRUST NOMS LTD A/C MEL01         375,336

NORTRUST NOMS LTD A/C/ PUQ01        801,688

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

PRUCLT HSBC GIS NOM(UK) PPL AC      391,827



The Prudential Assurance Company 
  Limited                         1,593,067                5.25

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

PRUCLT HSBC GIS NOM(UK) PPL AC      391,827

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