Holding(s) in Company

Sondex PLC
06 June 2005

                                  SCHEDULE 10

                   NOTIFICATION OF MAJOR INTERESTS IN SHARES


1.   Name of company

     Sondex plc

2.   Name of shareholder having a major interest

     Aviva plc (including it's subsidiary Morley Fund 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.

     As above

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

     BNY Norwich Union Nominees Limited 849,338

     Chase GA Group nominees Limited 2,205,709

     CUIM Nominee Ltd 1,045,327

5.   Number of shares/amount of stock acquired

     1,437,357

6.   Percentage of issued class

     Not disclosed

7.   Number of shares/amount of stock disposed

     Not disclosed

8.   Percentage of issued class

     Not disclosed

9.   Class of security

     Ordinary shares

10.  Date of transaction

     2 June 2005

11.  Date company informed

     6 June 2005

12.  Total holding following this notification

     4,100,374 ordinary shares

13.  Total percentage holding of issued class following this notification

     7.45%

14.  Any additional information



15.  Name of contact and telephone number for queries

     Christopher Wilks 0118 932 6755

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

     Christopher Wilks, Finance Director

Date of notification:  6 June 2005




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