Transaction in Own Shares

IMI PLC
16 May 2005



IMI plc: Transaction in own shares



IMI plc announces that it has today purchased through JPMorgan Cazenove 150,000
ordinary shares at a price of 387.2445 pence per share. The purchased shares
will all be held as treasury shares. Following the above purchase, IMI plc holds
6,100,000 ordinary shares as treasury shares.  The total number of ordinary
shares in issue (excluding shares held as treasury shares) is 350,420,617.



Contact:



John O'Shea                         0121 717 3780


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