RNS Number:1303R
Alexon Group PLC
21 October 2003

                           SCHEDULE 10
 
             NOTIFICATION OF MAJOR INTERESTS IN SHARES


1)   NAME OF COMPANY

      ALEXON GROUP PLC

2)   NAME OF SHAREHOLDER HAVING A MAJOR INTEREST

     SCHRODERS PLC

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



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.



6)   Percentage of issued Class


7)   Number of shares/amount of stock disposed


8)   Percentage of issued Class


9)   Class of security

      ORD 10P SHARES

10)  Date of transaction



11)  Date company informed

      20/10/03

12)  Total holding following this notification

      12,373,177
               
13)  Total percentage holding of issued class following this notification

      20.078%

14)  Any additional information



15)  Name of contact and telephone number for queries

      R. PIGGOTT
      01582 - 723131

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

     Date of Notification ...21 OCT 2003.........


Letter to Alexon Group

Alexon Group
10p ORDINARY SHARES ("SHARES")

We write to advise you that we, Schroder Investment Management Limited, have an
interest in 12,013,217 shares which are held in portfolios managed by us on a
discretionary basis for clients under investment management agreements.

Included in this figure are:-

(i)   5,219,505 shares held in (a) unit trust(s) operated and managed by an 
      affiliated company, Schroder Unit Trusts Limited (SUTL), and registered or
      to be registered in the name of Chase Nominees Limited, and

(ii)  6,793,712 shares neither registered nor to be registered in the name of
      Schroder Nominees Limited.  The registration details are shown on the 
      enclosed schedule.

An affiliated company, Schroder Investment Management North America Inc (SIMNA 
Inc), is managing a portfolio on a similar basis holding a further 359,960 
shares.  This holding is registered or to be registered in the name of Chase
Nominees Limited.

We believe that we, our subsidiary and affiliated company are therefore 
interested in an overall aggregate of 12,373,177 shares, representing some 
20.078% of the total number of shares in issue. namely 61,624,358.

This notification is made to you:-

(a)   in respect of our interest as investment managers,

(b)   on behalf of SUTL and SIMNA Inc in relation to the interests they are 
      treated as having respectively under the Companies Act 1985 (the Act), and

(c)   on behalf of Schroders plc., our holding company, which is treated as 
      having an interest in all of the above shares under the Act by virtue of 
      its ownership of SIMNA Inc. SUTL and ourselves. 

We shall be grateful if you will kindly confirm the total number of shares 
currently in issue.  

                              10P ORDINARY SHARES
                                    SCHEDULE

REGISTRATION                                                  AMOUNT

British Coal Staff Superannuation a/c: P                     2,316,413
Chase Nominees Limited                                         500,000
Chase Manhattan Bank                                           439,565
Mineworkers' Pension Scheme a/c: R                           2,565,619
Imperial Pensions Nominees Limited                             400,000
Banque Internationale a Luxembourg S                            22,115
Morgan Nominees a/c 8002255                                    250,000
Nortrust Nominees Limited                                      300,000

                                                             6,793,712


From Schroders



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

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