Holding(s) in Company

Senior PLC
28 March 2002


                  DEALINGS BY SUBSTANTIAL SHAREHOLDERS


1)   NAME OF COMPANY

     SENIOR PLC

2)   NAME OF SHAREHOLDER HAVING A MAJOR INTEREST

     SCHRODER 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

     SHAREHOLDER NAMED IN 2 ABOVE

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)   ( N/A %) of issued Class

7)   Number of shares/amount of stock disposed

     -

8)   ( N/A %) of issued Class

9)   Class of security

     ORDINARY SHARE OF 10p EACH

10)  Date of transaction

     -

11)  Date company informed

     28 MARCH 2002

12)  Total holding following this notification

     55,301,382
               
13)  Total percentage holding of issued class following this notification

     17.991%

14)  Any additional information



15)  Name of contact and telephone number for queries

     Y. BARNES
     01923 714716


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

     Date of Notification   28 MARCH 2002



LETTER TO:  SENIOR PLC


SENIOR PLC
10p ORDINARY SHARES ('SHARES')

We write to advise you that we, Schroder Investment Management Limited, have an
interest in 50,801,382 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)   22,821,487 shares registered or to be registered in the name of our
      wholly-owned subsidiary nominee company, Schroder Nominees Limited
      (Schroder Nominees),

(ii)  10,848,287 shares held in (a) unit trust(s) operated and managed by
      another wholly-owned subsidiary, Schroder Unit Trusts Limited (SUTL), and
      registered or to be registered in the name of Chase Nominees Limited.

(iii) 17,131,608 shares neither registered nor to be registered in the name of
      Schroder Nominees Limited. The registration details are shown in the
      schedule A.


An affiliated company, SIM North America Inc (SIMNA Inc), is managing (a)
portfolio's) on a discretionary basis holding a further 4,500,000 shares which
are registered or to be registered in the name of Chase Nominees Limited.

We believe that we and our subsidiary and affiliated companies are therefore
interested in an overall aggregate of 55,301,382 shares, representing some
17.991% the total number of shares in issue, namely 307,380,913 shares.

This notification is made to you:

(a) in respect of our interest as investment managers and also by virtue of the
    fact that we are the parent company of SUTL.

(b) on behalf of SIMNA Inc and SUTL in relation to the interest it is treated 
    as having 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 and ourselves.


LETTER FROM:  ALISON DUNN
              REGULATORY REPORTING OFFICER
              SCHRODERS PLC




                               SCHEDULE A

                       SENIOR ENGINEERING GROUP PLC

                            10p ORDINARY SHARES

REGISTRATION                                      AMOUNT

Bank of New York                                  1,871,100
British Coal Staff Superannuation a/c: P          2,177,028
Chase Nominees                                    1,344,000
Mineworkers' Pension Scheme a/c: R                  936,280
MSS Nominees Limited a/c: 809955                    402,000
MSS Nominees Limited a/c: 846435                  2,693,100
Nortrust Nominees Limited                           145,400
RBSTB Nominees Limited                            5,064,200
State Street Nominees Limited                       658,000
State Street Nominees Limited a/c: 5H57           1,840,500
                                                 ----------
                                                 17,131,608
                                                 ----------
 
                      This information is provided by RNS
            The company news service from the London Stock Exchange