Holding(s) in Company

RNS Number:0897J
AEA Technology PLC
24 March 2003


Letter to: AEA Technology Plc
Dated 21 March 2003

Companies Act 1985 (as amended):
Disclosure of Interests in Shares

In accordance with Part VI of the Companies Act 1985 (as amended)(the "Act"),
we write to inform you that Prudential plc and certain of its subsidiary
companies have a notifiable interest in the issued share capital of your company
as detailed in the schedule below.

For the purposes of S210 of the Act, the address for those companies identified
in the schedule below is Laurence Pountney Hill London EC4R 0HH.


Letter from:  Richard Harding
              for and on behalf of Prudential plc




                  DEALINGS BY SUBSTANTIAL SHAREHOLDERS


1)   NAME OF COMPANY

     AEA TECHNOLOGY PLC

2)   NAME OF SHAREHOLDER HAVING A MAJOR INTEREST

     PRUDENTIAL PLC & CERTAIN SUBSIDIARIES

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

      SEE LETTER ABOVE

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


      SEE LETTER ABOVE

5)   Number of shares/amount of stock acquired.

      NOT KNOWN

6)   ( N/A %) of issued Class

      NOT KNOWN

7)   Number of shares/amount of stock disposed

      N/A

8)   ( N/A %) of issued Class

9)   Class of security

      ORDINARY 12.122 PENCE

10)  Date of transaction

     NOT KNOWN


11)  Date company informed

     24/3/3

12)  Total holding following this notification

      SEE BELOW
               
13)  Total percentage holding of issued class following this notification

      SEE BELOW

14)  Any additional information



15)  Name of contact and telephone number for queries

      KEITH RUSSELL - 01235 433195

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

     Date of Notification 24/3/2003




            Notifiable Position Report for AEA TECHNOLOGY ORD GBP0.1222 
                              as at 20 March 2003

Percentage holdings are calculated using an issued share capital of 68,027,475 
ORD GBP0.1222 shares

                 Registered Holder                  Holding     %

Prudential plc                                    9,294,730   13.66   Total  
                                                                      Notifiable
                                                                      Interest
                 CHASE NOMS LTD                      29,454
                 CLYDESDALE BK NOMS LTD MGA       1,418,710
                 CLYDESDALE BK NOMS LTD MGG       5,603,585
                 CLYDESDALE BK NOMS LTD MGT          11,045
                 NORTRUST NOMS LTD                  180,539 
                 PRUCLT HSBC GIS NOM(UK) PAC AC   1,799,349
                 PRUCLT HSBC GIS NOM(UK) PPL AC     252,048


M&G Group Limited                                 9,120,736   13.40
                 CHASE NOMS LTD                      29,454
                 CLYDESDALE BK NOMS LTD MGA       1,418,710
                 CLYDESDALE BK NOMS LTD MGG       5,603,585
                 CLYDESDALE BK NOMS LTD MGT          11,045
                 NORTRUST NOMS LTD                    6,545 
                 PRUCLT HSBC GIS NOM(UK) PAC AC   1,799,349
                 PRUCLT HSBC GIS NOM(UK) PPL AC     252,048
   

            Notifiable Position Report for AEA TECHNOLOGY ORD GBP0.1222
                              as at 20 March 2003

Percentage holdings are calculated using an issued share capital of 68,027,475 
ORD GBP0.1222 shares


                 Registered Holder                  Holding      %

M&G Investment Management                         9,109,691    13.39
Limited                                                          
                 CHASE NOMS LTD                      29,454
                 CLYDESDALE BK NOMS LTD MGA       1,418,710
                 CLYDESDALE BK NOMS LTD MGG       5,603,585
                 NORTRUST NOMS LTD                    6,545 
                 PRUCLT HSBC GIS NOM(UK) PAC AC   1,799,349
                 PRUCLT HSBC GIS NOM(UK) PPL AC     252,048
   

M&G Limited                                       9,120,736    13.40
                 CHASE NOMS LTD                      29,454
                 CLYDESDALE BK NOMS LTD MGA       1,418,710
                 CLYDESDALE BK NOMS LTD MGG       5,603,585
                 CLYDESDALE BK NOMS LTD MGT          11,045
                 NORTRUST NOMS LTD                    6,545 
                 PRUCLT HSBC GIS NOM(UK) PAC AC   1,799,349
                 PRUCLT HSBC GIS NOM(UK) PPL AC     252,048

M&G Securities Limited                            7,033,340    10.33

                 CLYDESDALE BK NOMS LTD MGA       1,418,710
                 CLYDESDALE BK NOMS LTD MGG       5,603,585
                 CLYDESDALE BK NOMS LTD MGT          11,045

  
Notifiable Position Report for AEA TECHNOLOGY ORD GBP0.1222
                              as at 20 March 2003

Percentage holdings are calculated using an issued share capital of 68,027,475
ORD GBP0.1222 shares

                 Registered Holder                  Holding      % 

The Prudential Assurance Company Limited          2,051,397      3.01

                 PRUCLT HSBC GIS NOM(UK) PAC AC   1,799,349
                 PRUCLT HSBC GIS NOM(UK) PPL AC     252,048

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

END

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