Holding(s) in Company

Halma PLC
09 November 2006


                                   HALMA p.l.c.

            INTEREST NOTIFIED UNDER SECTION 198 COMPANIES ACT 1985

Halma p.l.c. has today received the following notification dated 8 November 2006
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                             34,410,437

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

HALMA p.l.c.                           371,823,979

Silchester exercises control over 9.25% of the shares of that class and of that,
one of Silchester's clients controls 5.92%.  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:                371,823,979

SII client ownership:         34,410,437
% of Shares:                  9.25%


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

Silchester International Investors  Northern Trust                 Yes           9,392,947          2.53
International Value Equity Group    Company
Trust

Silchester International Investors  Northern Trust                 Yes           1,464,764          0.39
Tobacco Free International Value    Company
Equity Trust

Silchester International Investors  Northern Trust                 Yes          22,014,952          5.92
International Value Equity Trust    Company

The Calleva Trust                   Northern Trust                 Yes           1,537,774          0.41
                                    Company

                                                                 Total          34,410,437

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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