Holding(s) in Company

Smiths Group PLC
15 November 2007


Form TR-1 with annex. FSA Version 2.1 updated April 2007


TR-1: Notifications of Major Interests in Shares


1. Identity of the issuer or the underlying issuer of                    Smiths Group plc
existing 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 notification    AVIVA PLC AND ITS SUBSIDIARIES
obligation:


4. Full name of shareholder(s) (if different from    REGISTERED HOLDER:
3):
                                                     BNY NORWICH UNION NOMINEES LTD     2,569,298 *

                                                     BT GLOBENET NOMINEES LTD               4,657 *

                                                     CHASE GA GROUP NOMINEES LTD        6,361,820 *

                                                     CHASE NOMINEES LTD                   419,107 *

                                                     CUIM NOMINEE LTD                   2,303,591 *

                                                     VIDACOS NOMINEES LTD                   6,100 *

                                                     * DENOTES DIRECT INTEREST


5. Date of transaction (and date on which the        13 NOVEMBER 2007
threshold is crossed or reached if different):


6. Date on which issuer notified:                    14 NOVEMBER 2007


7. Threshold(s) that is/are crossed or reached:      2% TO 3% CHANGE AT DIRECT INTEREST LEVEL


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 use   Number of    Number of  Number of    Number of voting rights  Percentage of voting
ISIN code         shares       voting     shares                                rights
                               rights

                                                       Direct      Indirect     Direct       Indirect

ORD -                                                                  NOT                       NOT
GB00B1WY2338                                                       DISCLOSABLE               DISCLOSABLE
                      < 3%       < 3%     11,664,573  11,664,573                  3.01%



B: Financial Instruments


Resulting situation after the triggering transaction


Type of financial    Expiration date      Exercise/ conversion No. of voting rights that Percentage of
instrument                                period/date          may be acquired (if the   voting rights
                                                               instrument exercised/
                                                               converted)





Total (A+B)


Number of voting rights                              Percentage of voting rights


11,664,573                                           3.01%




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


SEE SECTION 4




Proxy Voting:


10. Name of proxy holder:                            SEE SECTION 4


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:                           FIGURES ARE BASED ON A TOTAL NUMBER OF VOTING RIGHTS
                                                      OF 387,069,203

14 Contact name:                                      NEIL WHITTAKER


15. Contact telephone name:                           01603 648820






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