Holding(s) in Company

Radstone Technology PLC
12 July 2004


The Company has received the following notification:



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


6 July 2004


The Company Secretary
Radstone Technology plc
Water Lane
Towcester
Northamptonshire
NN12 6JN


Fax: [phone]


Dear Sir/Madam


Companies Act 1985 (as amended):
Disclosure 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]



Enc.


           Notifiable Position Report for RADSTONE TECH. ORD GBP0.125
                               As at 08 July 2004


Percentage holdings are calculated using an issued share capital of 27,972,860
ORD GBP0.125 shares



                Registered Holder                 Holding          %
                        
Prudentual plc                                    3,830,826       13.69        Total Notifiable Interest

                CHASE NOMS LTD                       19,428
                CLYDESDALE BK NOMS LTD MGC          730,149
                CLYDESDALE BK NOMS LTD MGIN         164,416
                CLYDESDALE BK NOMS LTD MGT            3,575
                DEXIA BANK INTL                     263,873
                NORTRUST NOMS LTD                   454,459
                NORTRUST NOMS LTD A/C MEL01         166,023
                NORTRUST NOMS LTD A/C/ PUQ01        427,229
                PRUCLT HSBC GIS NOM(UK) PAC AC    1,191,240
                PRUCLT HSBC GIS NOM(UK) PPLC AC    381,827
                PSIT2 US HIGH TECH FUND             28,607


           Notifiable Position Report for RADSTONE TECH. ORD GBP0.125
                               As at 08 July 2004


Percentage holdings are calculated using an issued share capital of 27,972,860
ORD GBP0.125 shares


             Registered Holder
                                                    Holding                %

M&G Group Limited                                3,802,219              13.59
                CHASE NOMS LTD                      19,428
                CLYDESDALE BK NOMS LTD MGC         730,349
                CLYDESDALE BK NOMS LTD MGIN        164,416
                CLYDESDALE BK NOMS LTD MGT           3,575
                DEXIA BANK INTL                    263,873             
                NORTRUST NOMS LTD                  454,459
                NORTRUST NOMS LTD A/C MEL01        166,023
                NORTRUST NOMS LTD A/C/ PUQ01       427,229
                PRUCLT HSBC GIS NOM(UK) PAC AC   1,191,240
                PRUCLT HSBC GIS NOM(UK) PPLC AC    381,827


M&G Investment Management Ltd                    3,534,771              12.63
                CHASE NOMS LTD                      19,428
                CLYDESDALE BK NOMS LTD MGC         730,149
                CLYDESDALE BK NOMS LTD MGIN        164,416
                NORTRUST NOMS LTD                  454,459
                NORTRUST NOMS LTD A/C MEL01        166,023
                NORTRUST NOMS LTD A/C/ PUQ01       427,229
                PRUCLT HSBC GIS NOM(UK) PAC AC   1,191,240
                PRUCLT HSBC GIS NOM(UK) PPLC AC    381,827


           Notifiable Position Report for RADSTONE TECH. ORD GBP0.125
                               As at 08 July 2004



Percentage holdings are calculated using an issued share capital of 27,972,860
ORD GBP0.125 shares



   Registered Holder
                                                 Holding                %

                                       
M&G Limited                                     3,802,219           13.59
                CHASE NOMS LTD                     19,428
                CLYDESDALE BK NOMS LTD MGC        730,149
                CLYDESDALE BK NOMS LTD MGIN       164,416
                CLYDESDALE BK NOMS LTD MGT          3,575
                DEXIA BANK INTL                   263,873
                NORTRUST NOMS LTD                 454,459
                NORTRUST NOMS LTD A/C MEL01       166,023
                NORTRUST NOMS LTD A/C/ PUQ01      427,229
                PRUCLT HSBC GIS NOM(UK) PAC AC  1,191,240
                PRUCLT HSBC GIS NOM(UK) PPLC AC   381,827



The Prudential Assurance Company Limited        1,573,067             5.62
                PRUCLT HSBC GIS NOM(UK) PAC AC  1,191,240
                PRUCLT HSBC GIS NOM(UK) PPL AC    381,827





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