Holding(s) in Company

Spirax-Sarco Engineering PLC
16 November 2007


TR-1:               notification of major interests in shares


1. Identity of the issuer or the underlying issuer of existing       Spirax-Sarco Engineering PLC
shares to which voting rights are attached:
2. Reason for notification (yes/no)
An acquisition or disposal of voting rights                                                   Yes
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
Other (please specify):______________
3. Full name of person(s) subject to the notification                        Schroders plc
obligation:
4. Full name of shareholder(s) (if different from 3.):
5. Date of the transaction (and date on which the threshold is                 14.11.07
crossed or reached if different):
6. Date on which issuer notified:                                              15.11.07
7. Threshold(s) that is/are crossed or reached:                                11% - 12%


8. Notified details:


A: Voting rights attached to shares
Class/type of  Situation previous to   Resulting situation after the triggering transaction
shares         the Triggering
               transaction
 if possible   Number of   Number of   Number of    Number of voting rights   % of voting rights
using the ISIN Shares      Voting      shares
CODE                       Rights      Direct       Direct       Indirect     Direct       Indirect
Ord

GB0008347048   7,626,699   7,626,699   N/A          N/A          9,150,468    N/A          12.02%


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



Total (A+B)
Number of voting rights                            % of voting rights
                    
9,150,468                                              12.02%








9. Chain of controlled undertakings through which the voting rights and/or the 
financial instruments are effectively held, if applicable:

Schroder Investment Management Ltd                  9,021,838         11.87%

Schroder Investment Management North America Ltd       70,000          0.09%

Schroder & Co Ltd                                      52,214          0.07%

Schroders (CI) Ltd                                      6,416          0.01%


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


        13. Additional information:             The shares referred to in section 9 are held in portfolios
                                               managed by those firms on a discretionary basis for clients
                                                          under investment management agreements
14. Contact name:                                                      Andrea Rowe
15. Contact telephone number:                                         020 7658 2521




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