Holding(s) in Company

Radstone Technology PLC
13 January 2004

                    Radstone Technology PLC ("the Company")

                               Holding in Company

The Company was notified on 12 January 2004 that Prudential plc (including
certain of its subsidiaries) has an interest in 3,028,826 ordinary shares of
12.5p each in the Company ("Ordinary Shares"), which represents 10.83 per cent.
of the issued ordinary share capital of the Company.

The above holding is registered as follows:

Registered holder                                Number of Ordinary Shares

CHASE NOMS LTD                                                      18,098
CHASE NOMS LT A/C 14922                                            405,591
CLYDESDALE BK NOMS LTD MGC                                         777,543
CLYDESDALE BK NOMS LTD MGIN                                        154,822
CLYDESDALE BK NOMS LTD MGT                                           3,575
CLYDESDALE BK NOMS LTD MGZ                                         154,660
DEXIA BANK INTL                                                    245,812
NORTRUST NOMS LTD                                                  433,721
PRUCLT HSBC GIS NOM (UK) PAC A/C                                   439,705
PRUCLT HSBC GIS NOM (UK) PPL A/C                                   355,692
PSIT2 US HIGH TECH FUND                                             39,607

13 January 2004



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