Holding(s) in Company

RNS Number:6115L
Isotron PLC
28 May 2003


To RNS

Section 198 -202 Companies Act 1985

We are writing to notify you that ISIS Asset Management plc notified us on 27 
May 2003 that following sales of 17,557 ordinary shares of 25p each in Isotron 
plc on 22 May 2003, the Friends Provident group are interested in the shares 
referred to below through client holdings:

ISIS Asset Management plc                         2,300,706    10.92%

This holding is made up of the following registered holders:-

Direct Nominees Ltd for
     RCS UK Portfolio                                 6,395
Chase Nominees Ltd for
     ISIS Trust plc                                 116,494 
     Discovery Trust                                476,038
     3PC Investment Trust                           352,674
Citifriends for
     FISMPF UK Smaller Co                            58,525 
     FP Equity Trust                                 27,489 
     FIS UK Mid/Smaller Co                          563,162 
     ISIS ICVC UK Smaller Markets                    36,364
Littledown Nominees Ltd "R"A/c for
     RSA Insurance Plc No 1 A/c                      98,814 
     Royal & Sun Alliance Life & Pensions Ltd       322,296 
     Sun Alliance & London Assurance Co 'A' a/c     242,455


From Isotron plc

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

END

HOLNKFKQDBKDFPB