Holding(s) in Company

Halma PLC
16 January 2007


                                              HALMA p.l.c.

                         INTEREST NOTIFIED UNDER SECTION 198 COMPANIES ACT 1985



Halma p.l.c. has received the following notification dated 15 January 2007 from Silchester International
Investors Limited.



Silchester International Investors Limited acts as an Investment Manager for a number of commingled
funds.  In acting for its clients, Silchester are given full discretion over their investments, and are
empowered to vote on their behalf.  However, Silchester do not act as their Custodian, and therefore
shares are not held in the name of Silchester, but in the nominee name of its clients' Custodian bank.



Recent purchases/sales of shares in Halma p.l.c. by Silchester, on behalf of its clients, have resulted
in it having control over the following shares (also see below):


SILCHESTER                             29,044,195


Silchester's records show that Halma p.l.c. have the following shares in that class:


HALMA p.l.c.                           372,446,915


Silchester exercises control over 7.8% of the shares of that class and of that, one of Silchester's
clients controls 4.98%.  This interest is notified under Section 198 of the Companies Act 1985.




Silchester International Investors Limited - client ownership:



Company:                        Halma p.l.c.

Share Class:                    Ordinary

Issued Shares:                  372,446,915



SII client ownership:           29,044,195

% of Shares:                    7.8%


Silchester Account                  Nominee                 Silchester  Silchester current % holding at
                                                                voting        shareholding fund level
                                                             authority


Silchester International Investors  Northern Trust                 Yes           7,842,934          2.11
International Value Equity Group    Company
Trust


Silchester International Investors  Northern Trust                 Yes           1,378,074          0.37
Tobacco Free International Value    Company
Equity Trust


Silchester International Investors  Northern Trust                 Yes          18,548,506          4.98
International Value Equity Trust    Company


The Calleva Trust                   Northern Trust                 Yes           1,274,681          0.34
                                    Company

                                                         Total                  29,044,195





Contact for further information:                    Carol Chesney
                                                    Company Secretary, Halma p.l.c
                                                    Tel: [phone]




A copy of this announcement, together with other information about Halma, may be viewed on its web site www.halma.com.




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