Transaction in Own Shares

IMI PLC
18 October 2005


IMI plc: Transaction in own shares

IMI plc announces that it has today purchased through JPMorgan Cazenove 200,000
ordinary shares at a price of 419.3085 pence per share. The purchased shares
will all be held as treasury shares. Following the above purchase, IMI plc holds
12,811,000 ordinary shares as treasury shares.  The total number of ordinary
shares in issue (excluding shares held as treasury shares) is 345,478,137.


Contact:

John O'Shea                         0121 717 3780


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