Holding(s) in Company

IQE PLC
01 December 2006

IQE plc
1 December 2006
                                    IQE plc

                          (the ''Company'' or ''IQE'')

                            Notification of Interest

The Company has been informed by a letter dated 30 November 2006 that UBS AG had
a notifiable interest in 15,851,793 ordinary 1p shares in IQE plc, equivalent to
3.92% of the issued share capital of the Company.

Contacts

IQE plc                                    [phone]
Leslie Coventry

Noble & Company Limited                    [phone]
John Llewellyn-Lloyd
Graeme Bayley


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