Holding(s) in Company

Senior PLC
18 April 2002


                  DEALINGS BY SUBSTANTIAL SHAREHOLDERS


1)   NAME OF COMPANY

     SENIOR PLC

2)   NAME OF SHAREHOLDER HAVING A MAJOR INTEREST

     HBOS 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

     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 SHARES OF 10p EACH

10)  Date of transaction

     -

11)  Date company informed

     18 APRIL 2002

12)  Total holding following this notification

     10,331,671
               
13)  Total percentage holding of issued class following this notification

     3.36%

14)  Any additional information



15)  Name of contact and telephone number for queries

     L GRANT - 01923-714712

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

     Date of Notification 18 APRIL 2002



LETTER TO SENIOR PLC - DATED 16th APRIL 2002

On behalf of HBOS Plc, 

Pursuant to Section 198 of the Companies Act 1985, Section 198, as amended, on 
behalf of HBOS plc, we give notice that HBOS plc and its subsidiaries have a 
material and non-material interest in the shares of your company as follows:

 
Sedol    No of Shares  Security class  Fund - Registered Holder
 
0795823    3,400,000     Ordinary 25p  EQPEL             Equitable Life Assurance Society
0795823      104,000     Ordinary 25p  EQSTR             Equitable Life Assurance Society
0795823        6,295     Ordinary 25p  FE1F              Statestreet Nominees ltd
0795823    4,943,887     Ordinary 25p  HUIN              Morgan Nominees
0795823    1,871,100     Ordinary 25p  SJP Equity Income Bank of New York Nominees Ltd A/C 683004
0795823        6,389     Ordinary 25p  SJP FTSE TRACKER  Bank of New York Nominees Ltd A/C 683013

 
HBOS plc's interest is now 10,331,671 whish is 3.36% of the shares in issue.




                  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 SHARES OF 10p EACH

10)  Date of transaction

     -

11)  Date company informed

     18 APRIL 2002

12)  Total holding following this notification

     55,515,082
               
13)  Total percentage holding of issued class following this notification

     18.061%

14)  Any additional information



15)  Name of contact and telephone number for queries

     L. GRANT 
     01923 714712

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

     Date of Notification   18 APRIL 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 51,015,082 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)   18,828,019 shares registered or to be registered in the name of our
      wholly-owned subsidiary nominee company, Schroder Nominees Limited
      (Schroder Nominees).

(ii)  10,548,287 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) 21,638,776 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 55,515,082 shares, representing some
18.061% the total number of shares in issue, namely 307,383,211 shares.

This notification is made to you:-

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

(b) on behalf of SIMNA Inc and SUTL in relation to the interests it is 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.


LETTER FROM:  ALISON DUNN
              REGULATORY REPORTING OFFICER
              SCHRODERS PLC


                               SCHEDULE A

                       SENIOR ENGINEERING GROUP PLC

                            10p ORDINARY SHARES

REGISTRATION                                      AMOUNT

Bank of New York                                  2,421,100
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
Morgan Nominees Limited                           2,000,000
Nortrust Nominees Limited                         2,102,568
RBSTB Nominees Limited                            5,064,200
State Street Nominees Limited                       658,000
State Street Nominees Limited a/c: 5H57           1,840,500
                                                 ----------
                                                 21,638,776
                                                 ----------
 

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