Directors' Dealings

IMI PLC
8 September 1999


To Company Announcements Office

Pursuant to Section 329 of the Companies Act 1985, I hereby notify you that Mr T
J Slack, a Director of this Company, exercised an option today in respect of
2316 Ordinary Shares in IMI plc under the IMI SAYE Share Option (1994) Scheme.
The subscription price was 280 pence per share.

From J O'Shea
IMI Company Secretary