Holding(s) in Company

Radstone Technology PLC
17 August 2005

The Company has received the following notifications:


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



16 August 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 15 August 2005


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


   Registered Holder          Holding               %



Prudential plc                      4,218,939   13.92  Total Notifiable Interest
   BK OF NEW YORK (NOMS) LTD/636922   606,373
   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




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