Holding(s) in Company

Soco International PLC
10 July 2003


                             SOCO International plc
                           ('SOCO' or 'the Company')

                             HOLDING IN THE COMPANY

The Company was notified on 9 July 2003 by Threadneedle Asset Management Limited
that its ultimate holding company, Zurich Financial Services and its Group, has
a notifiable interest in 2,550,000 SOCO ordinary shares of £0.20 each,
representing 3.57% of the issued share capital of the Company.

Contact:     Carol Fan, 020 7399 3300


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