Holding(s) in Company

Halma PLC
09 September 2005


                               HALMA p.l.c.

            INTEREST NOTIFIED UNDER SECTION 198 COMPANIES ACT 1985


Halma p.l.c. received the following notification on 9 September 2005 from
Silchester International Investors Limited.

Silchester International Investors Limited ('Silchester') acts as an Investment
Manager for a number of commingled funds (its 'Clients').  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.

In addition, Silchester holds 49.9% of the issued share capital of Sanderson
Asset Management Limited (' Sanderson'), a UK limited company that also acts as
an Investment Manager for a number of commingled funds and separate accounts. 
In acting for its clients, Sanderson are given full discretion over their
investments, and are empowered to vote on their behalf.  However, Sanderson do
not act as its clients' Custodian and therefore shares are not held in
Sanderson's name, but in the nominee name of Sanderson's clients' Custodian
bank.

Silchester's share ownership in Sanderson does not allow Silchester to exercise
any direct or indirect control over Sanderson's investment strategy, philosophy
or implementation, the investments that Sanderson may purchase or sell on behalf
of its clients, or the manner in which Sanderson may vote proxies that arise
from its client investments.  However, Silchester is deemed to have an
'interest' in shares that Sanderson controls by virtue of Section 203(2)(b) of
the Companies Act 1985.

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

SILCHESTER                             65,887,378

Recent purchases/sales of shares in Halma p.l.c. by Sanderson, on behalf of its
clients, have resulted in Sanderson having an interest in the following shares,
and Silchester having an interest over the same shares for the purposes of
Section 203(2)(6) of the Companies Act 1985 (also see table below):

SANDERSON                              11,913,000

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

HALMA p.l.c.                           369,081,347

As such, Silchester has an interest over 21.08% of the shares of that class. 
Two of Silchester's clients control 11.31% and 5.02%.  This interest is being
notified in fulfillment of the obligations imposed by Sections 198-202 of the
Companies Act 1985. Silchester does not have an interest mentioned in Section
208(5) of the Companies Act 1985 in any of the shares to which this notification
relates.




Registered holder(s) and the number of shares held by each of them:


Share Class:  Ordinary

Silchester International Investors Limited
Client ownership

Silchester Account                   Nominee                   % of Class             Share-        Voting
                                                                                     holding     Authority
                                                                                     
Silchester International Investors   Northern Trust Co               5.02         18,517,637           Yes
International Value Equity Group
Trust

Silchester International Investors   Northern Trust Co               0.80          2,968,657           Yes
Tobacco Free International Value
Equity Trust

Silchester International Investors   Northern Trust Co              11.31         41,737,280           Yes
International ValueEquity Trust

The Calleva Trust                    Northern Trust Co               0.72          2,663,804           Yes

                                     Total                                        65,887,378



Sanderson Asset Management Limited
Client ownership

Silchester Account                   Nominee                   % of Class             Share-        Voting
                                                                                     Holding     Authority
                                                                                     
BUST                                 Northern Trust Co               1.29          4,775,000           Yes
CAT                                  Pictet & Cie                    0.07            274,000           Yes
DYN                                  State Street                    0.06            228,000           Yes
EUF                                  State Street                    0.20            730,000           Yes
GOLF                                 Bank of New York                0.04            152,000           Yes
GRIT                                 Northern Trust Co               0.42          1,553,000           Yes
INGOT                                Mellon Trust                    0.10            352,000           Yes
IVF                                  State Street                    0.07            266,000           Yes
MINI                                 State Street                    0.17            613,000           Yes
OCEAN                                Northern Trust Co               0.06            235,000           Yes
OVAL                                 Mellon Trust                    0.09            324,400           Yes
PEARL                                Northern Trust Co               0.02             60,000           Yes
RAIN                                 Citigroup                       0.08            278,000           Yes
STAMP                                Northern Trust Co               0.05            191,000           Yes
TIME                                 Bank of New York                0.01             52,000           Yes
TRAY                                 Northern Trust Co               0.25            938,600           Yes
WHEAT                                Mellon Trust                    0.10            361,000           Yes
WINDY                                Northern Trust Co               0.07            253,000           Yes
WOGAN                                Northern Trust Co               0.08            277,000           Yes

                                                 Total                            11,913,000



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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