Holding(s) in Company

Radstone Technology PLC
18 October 2005


The Company has received the following notifications:


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


17 October 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 14 October 2005


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


                   Registered Holder                          Holding                %

Prudential plc                                              3,688,566            12.17       Total Notifiable Interest
                   BK OF NEW YORK (NOMS) LTD/636922           426,000
                   CHASE NOMS LTD                              19,428
                   NORTRUST NOMINEE LTD A/C MHFO1               8,482
                   NORTRUST NOMINEE LTD A/C MKMO1             614,565
                   NORTRUST NOMS LTD A/C MEL01                375,336
                   NORTRUST NOMS LTD A/C PUQ01                651,688
                   PRUCLT HSBC GIS NOM(UK) PAC AC           1,201,240
                   PRUCLT HSBC GIS NOM(UK) PPL AC             391,827

M&G Group Limited                                           3,262,566            10.76
                   CHASE NOMS LTD                              19,428
                   NORTRUST NOMS LTD A/C MHF01                  8,482
                   NORTRUST NOMS LTD A/C MKM01                614,565
                   NORTRUST NOMS LTD A/C MEL01                375,336
                   NORTRUST NOMS LTD A/C/ PUQ01               615,688
                   PRUCLT HSBC GIS NOM(UK) PAC AC           1,201,240
                   PRUCLT HSBC GIS NOM(UK) PPL AC             391,827


M&G Investment Management Ltd                               3,254,084            10.73
                   CHASE NOMS LTD                              19,428
                   NORTRUST NOMINEES LTD A/C MKM01            614,565
                   NORTRUST NOMS LTD A/C MEL01                375,336
                   NORTRUST NOMS LTD A/C/ PUQ01               651,688
                   PRUCLT HSBC GIS NOM(UK) PAC AC           1,201,240
                   PRUCLT HSBC GIS NOM(UK) PPL AC             391,827


M&G Limited                                                 3,262,566            10.76
                   CHASE NOMS LTD                              19,428
                   NORTRUST NOMS LTD A/C MHF01                  8,482
                   NORTRUST NOMS LTD A/C MKM01                614,565
                   NORTRUST NOMS LTD A/C MEL01                375,336
                   NORTRUST NOMS LTD A/C/ PUQ01               651,688
                   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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