Holding(s) in Company

IMI PLC
26 March 2008

                   NOTIFICATION OF MAJOR INTERESTS IN SHARES



1.         Name of company



            IMI PLC



2.         Name of shareholder having a major interest



            Legal & General Group plc

            Legal & General Investment Management Limited



3.                   Please state whether notification indicates that it is in
respect of holding of the shareholder names in 2 above or in respect of a
non-beneficial interest or in the case of an individual holder if it is a
holding of that person's spouse or children under the age of 18.

NA



4.                   Name of the registered holder(s) and, if more than one
holder, the number of shares held by each of them.



Legal & General Assurance (Pensions Management) Limited

Legal & General Group Plc



5.                   Number of shares/amount of stock acquired.

            -



6.         Percentage of issued class.

            -



7.         Number of shares/amount of stock disposed.

            NA



8.                   Percentage of issued class.

NA



9.                   Class of security.



Ordinary Shares



10.               Date of Transaction:



19 March 2008



11.               Date company informed:



            25 March 2008



12.               Total holding following this notification:



16,934,988



13.               Total percentage holding of issued class following this
notification:



5.26%



14.               Any Additional information:



15.               Name of contact and telephone number for queries:



J C Bower - 0121 717 3700



16:        Name and signature of authorised company official making this
notification.



            J C BOWER - Deputy Company Secretary





Date of Notification:        25 March 2008
                                                End.


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