Transaction in Own Shares

IMI PLC
17 May 2005


17 May 2005

IMI plc: Transaction in own shares


IMI plc announces that it has today purchased through Citigroup 300,000 ordinary
shares at a price of 386.80 pence per share. The purchased shares will all be
held as treasury shares. Following the above purchase, IMI plc holds 6,400,000
ordinary shares as treasury shares.  The total number of ordinary shares in
issue (excluding shares held as treasury shares) is 350,120,617.

Contact:

John O'Shea:     0121 717 3780


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