Holding(s) in Company

Radstone Technology PLC
23 November 2005

The Company has received the following notifications:

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


21 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 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



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 18 November 2005

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


Registered Holder                         Holding                %

Prudential plc                          3,331,333            10.99       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            334,594

The Prudential Assurance Company        1,535,834             5.06
PRUCLT HSBC GIS NOM(UK) PAC AC          1,201,240
PRUCLT HSBC GIS NOM(UK) PPL AC            334,594


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