Holding(s) in Company

IMI PLC
21 April 2005

                                  SCHEDULE 10

                   NOTIFICATION OF MAJOR INTERESTS IN SHARES


1. Name of company

IMI plc


2. Name of shareholder having a major interest

Standard Life Investments


3. Please state whether notification indicates that it is in respect of holding
of the shareholder named in 2 above or in respect of a non-beneficial interest
or in the case of an individual holder if it is a holding of that person's
spouse or children under the age of 18

Material Interest


4. Name of the registered holder(s) and, if more than one holder, the number of
shares held by each of them

Standard Life Investments


5. Number of shares / amount of stock acquired

N/A


6. Percentage of issued class

N/A


7. Number of shares / amount of stock disposed

N/A


8. Percentage of issued class

5.011% (share buy-backs by IMI plc have pushed this holding through a percentage 
point).


9. Class of security

Ordinary


10. Date of transaction

20 April 2005


11. Date company informed

21 April 2005


12. Total holding following this notification

17,694,906.28


13. Total percentage holding of issued class following this notification

5.011%


14. Any additional information

(share buy-backs by IMI plc have pushed this holding through a percentage 
point).


15. Name of contact and telephone number for queries

Wanda Hart 0121 717 3700


16. Name and signature of authorised company official responsible for making
this notification

John O'Shea, IMI Company Secretary


Date of notification

21 April 2005


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