Transaction in Own Shares

IMI PLC
22 April 2005

IMI plc: Transaction in own shares

IMI plc announces that it has today purchased through JPMorgan Cazenove 300,000
ordinary shares at a price of 406.5662 pence per share. The purchased shares
will all be held as treasury shares. Following the above purchase, IMI plc holds
3,765,000 ordinary shares as treasury shares.  The total number of ordinary
shares in issue (excluding shares held as treasury shares) is 352,651,259.

Contact:



John O'Shea                         0121 717 3780


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