Holding(s) in Company

Radstone Technology PLC
28 February 2005

The Company has received the following notifications:



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


23 February 2005

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


Fax: [phone]


Dear Sir/Madam

Companies Act 1985

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 OHH.


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 22 February 2005



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


                     Registered Holder                   Holding               %

Prudentual plc                                        4,336,439            14.31        Total Notifiable Interest
                   BK OF NEW YORK (NOMS) LTD 636922     597,206
                   CHASE NOMS LTD                        19,428
                   NORTRUST NOMINEE LTD A/C MHFO1         8,482
                   NORTRUST NOMINEE LTD A/C/ MKMO1      894,565
                   NORTRUST NOMS LTD                    454,459
                   NORTRUST NOMS LTD A/C MEL01          342,003
                   NORTRUST NOMS LTD A/C PUQ0           427,229
                   PRUCLT HSBC GIS NOM(UK) PA AC      1,201,240
                   PRUCLT HSBC GIS NOM(UK) PPL AC       391,827



M&G Group Limited                                     4,336,439            14.31

                   BK OF NEW YORK (NOMS) LTD 636922     597,206
                   CHASE NOMS LTD                        19,428
                   NORTRUST NOMS LTD A/C MHF01            8,482
                   NORTRUST NOMS LTD A/C MKM01          894,565
                   NORTRUST NOMS LTD                    454,459
                   NORTRUST NOMS LTD A/C MEL01          342,003
                   NORTRUST NOMS LTD A/C/ PUQ01         427,229
                   PRUCLT HSBC GIS NOM(UK) PAC AC     1,201,240
                   PRUCLT HSBC GIS NOM(UK) PPLC AC      391,827



M&G Investment Management Ltd                         3,730,751            12.31

                   CHASE NOMS LTD                        19,428
                   NORTRUST NOMINEES LTD A/C MKM01      894,565
                   NORTRUST NOMS LTD                    454,459
                   NORTRUST NOMS LTD A/C MEL01          342,003
                   NORTRUST NOMS LTD A/C/ PUQ01         427,229
                   PRUCLT HSBC GIS NOM(UK) PAC AC     1,201,240
                   PRUCLT HSBC GIS NOM(UK) PPLC AC      391,827

M&G Limited                                           4,336,439            14.31

                   BK OF NEW YORK (NOMS) LTD 636922     597,206
                   CHASE NOMS LTD                        19,428
                   NORTRUST NOMS LTD A/C MHF01            8,482
                   NORTRUST NOMS LTD A/C MKM01          894,565
                   NORTRUST NOMS LTD                    454,459
                   NORTRUST NOMS LTD A/C MEL01          342,003
                   NORTRUST NOMS LTD A/C/ PUQ01         427,229
                   PRUCLT HSBC GIS NOM(UK) PAC AC     1,201,240
                   PRUCLT HSBC GIS NOM(UK) PPLC 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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