Transaction in Own Shares

IMI PLC
29 March 2007



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 584.3152 pence per share. The purchased shares
will all be held as treasury shares. Following the above purchase, IMI plc holds
25,756,313 ordinary shares as treasury shares.  The total number of ordinary
shares in issue (excluding shares held as treasury shares) is 335,894,903.

Contact:

John O'Shea                         0121 717 3780


                      This information is provided by RNS
            The company news service from the London Stock Exchange