Holding(s) in Company

RNS Number:7772Q
Alexon Group PLC
06 February 2007



TR-1(i): notification of major interests in shares

1. Identity of the issuer or                            Alexon Group
the underlying issuer of                           ----------------------
existing shares to which voting
rights are attached(1):
-------------------------------
2. Reason for the notification (please tick the appropriate box or      n/a see additional
boxes):                                                                 information
--------------------------------------------                            ---------
An acquisition or disposal of voting rights                                       
--------------------------------------------                            ----------
An acquisition or disposal of financial instruments which may result in           
the acquisition of shares already issued to which voting rights are     ---------
attached
--------------------------------------------
An event changing the breakdown of voting rights                                  
--------------------------------------------                            ---------
3. Full name of person(s)                      Legal & General Group Plc (L&G)
subject to the notification                        ----------------------
obligation(1):
-------------------------------
4. Full name of shareholder(s)  Legal & General Assurance (Pensions Management) Limited (PMC)
(if different from 3.)(1):                         ----------------------
-------------------------------
5. Date of the transaction and                               n/a
date on which the threshold is                     ----------------------
crossed or reached(1):
-------------------------------
6. Date on which issuer                                  02/02/2007
notified:                                          ----------------------
-------------------------------
7. Threshold(s) that is/are                            Above 3% (L&G)
crossed or reached:                                ----------------------
-------------------------------




8. Notified details:

A: Voting rights attached to shares
Class/   Situation previous   Resulting situation after the triggering
type of  to the Triggering    transaction(1)
shares   transaction (1)
if
possible Number Number of     Number of    Number of voting      % of voting
using    of     Voting Rights shares       rights ix             rights
the ISIN Shares viii
CODE                          Direct       Direct x     Indirect Direct  Indirect
                                                        xi
Ord GBP  1,891,849 3.07%       2,011,344    2,011,344             3.58%
  0.10   (under S-198 on 02/
         10/2002)

B: Financial Instruments
Resulting situation after the triggering transaction xii
Type of     Expiration Exercise/       Number of voting rights that may  % of
financial   date xiii  Conversion      be acquired if the instrument is  voting
instrument             Period/ Date    exercised/ converted.             rights
                       xiv


Total (A+B)
Number of voting rights                      % of voting rights
                                 2,011,344                                3.58%





9. Chain of controlled undertakings through which the voting rights and/or the financial
instruments are effectively held, if applicable xv:
Legal & General Group Plc (Direct and Indirect) (Group)
Legal & General Investment Management (Holdings) Limited
(LGIMH) (Direct and Indirect)
Legal & General Investment Management Limited (Indirect)
(LGIM)
        Legal & General Group Plc (Direct) (L&G) (2,011,344-3.58% = LGAS, LGPL & PMC)
Legal & General Investment Management           Legal & General Insurance Holdings Limited
(Holdings) Limited (Direct) (1,712,686-3.05% =  (Direct) (LGAS & LGPL)
PMC)
Legal & General Assurance (Pensions Management) Legal & General Assurance Society Limited
Limited (PMC) (1,712,686-3.05%=PMC)             (LGAS & LGPL)
                                                Legal & General Pensions Limited (Direct)
                                                (LGPL)

Proxy Voting:
10. Name of the proxy holder:                                               N/A
11. Number of voting rights proxy holder will cease to hold:                N/A
12. Date on which proxy holder will cease to hold voting rights:            N/A

      13. Additional           Notification using shares in issue figure of
       information:                             56,142,507
                                  First notification under DTR Sourcebook
14. Contact name:                               Helen Lewis
15. Contact
telephone number:                              020 7528 6742


--------------------------





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