Holding(s) in Company

IQE PLC
20 March 2007

IQE PLC

20 March 2007

                                    IQE plc

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

                            Notification of Interest



The Company has been informed on 20 March 2007 that Gartmore Investment Limited
and their subsidiaries had a notifiable interest of 39,500,760 ordinary 1p
shares in IQE, equivalent to 9.18% of the issued share capital of the Company.



This announcement is in accordance with the Disclosure and Transparency Rules
and is in relation to the Transitional Provision 7.





Contacts



IQE plc                           [phone]
Leslie Coventry



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




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