Holding(s) in Company

Radstone Technology PLC
08 November 2005

The Company has received the following notifications:



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

7 November 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 those companies identified below no longer have a
notifiable interest in the issued share capital of your company:

M&G Group Limited
M&G Investment Management Limited
M&G Limited

Notwithstanding the above, certain companies within the Prudential Plc group of
companies continue to have notifiable interests, details of which are set out 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


Jonathan brunton
For and on behalf of Prudential plc

Direct Line: 020 7548 2737
Direct Fax: [phone]


           Notifiable Position Report for RADSTONE TECH. ORD GBP0.125
                             As at 4 November 2005

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


Registered Holder                                     Holding                %

Prudential plc                                      3,388,566            11.18       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     464,565
                   NORTRUST NOMS LTD A/C MEL01        375,336
                   NORTRUST NOMS LTD A/C PUQ01        501,688
                   PRUCLT HSBC GIS NOM(UK) PAC AC   1,201,240
                   PRUCLT HSBC GIS NOM(UK) PPL AC     391,827

The Prudential Assurance Company                    1,593,067             5.25
                   PRUCLT HSBC GIS NOM(UK) PAC AC   1,201,240
                   PRUCLT HSBC GIS NOM(UK) PAC AC     391,827


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