Holding in Company

IMI PLC
4 December 2000


                  DEALINGS BY SUBSTANTIAL SHAREHOLDERS


1)   NAME OF COMPANY

IMI PLC

2)   NAME OF SHAREHOLDER HAVING A MAJOR INTEREST

LEGAL & GENERAL INVESTMENT MANAGEMENT LIMITED

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

BENEFICIAL

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

SEE BELOW

5)   Number of shares/amount of stock acquired.

10,590,630

6)   (3.01%) of issued Class

7)   Number of shares/amount of stock disposed



8)   ( N/A %) of issued Class

9)   Class of security

ORDINARY SHARES

10)  Date of transaction



11)  Date company informed

4 DECEMBER 2000

12)  Total holding following this notification

10,590,630
              
13)  Total percentage holding of issued class following this notification

3.01%

14)  Any additional information

LEGAL AND GENERAL HAVE NOTIFIED THE COMPANY THAT THEIR INTEREST HAS NOW EXCEEDED
3%

15)  Name of contact and telephone number for queries

J O'SHEA     0121 356 4848 EXT. 4354

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

     Date of Notification ..4 DECEMBER 2000................


LETTER TO IMI PLC


Companies Act 1985 - Disclosure of Interest in shares

Consequent upon a purchase in the market of 328,500 shares on the 30 November
2000, we now hold the following number of shares which are not subject to a
concert party and will be registered as follows:

Material Interest

HSBC Global Custody Nominee (UK) Ltd A/c 754612     521,000
HSBC Global Custody Nominee (UK) Ltd A/c 766793      33,000
HSBC Global Custody Nominee (UK) Ltd A/c 360509     180,642
HSBC Global Custody Nominee (UK) Ltd A/c 770286      45,000
HSBC Global Custody Nominee (UK) Ltd A/c 866203     260,000
HSBC Global Custody Nominee (UK) Ltd A/c 357206   6,105,710
HSBC Global Custody Nominee (UK) Ltd A/c 775245   2,495,778
HSBC Global Custody Nominee (UK) Ltd A/c 361602      30,000
HSBC Global Custody Nominee (UK) Ltd A/c 886615     919,500

                                                 10,590,630      3.01%

Please note that this percentage is based on our understanding that your issued
share capital is 351,400,000.

FROM LEGAL & GENERAL