Holding(s) in Company

HALMA p.l.c.

NOTIFICATION OF MAJOR INTERESTS IN SHARES

In conformity with the Transparency Directive, Halma p.l.c. ('Halma') is required to announce to the market the receipt of notifications of major interests in shares. Halma received the notice below on 15 October 2009 in respect of Silchester International Investors Limited.

Carol Chesney

Company Secretary, Halma p.l.c.

Tel +44 (0)1494 721111

1

Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:

Halma p.l.c.

2

Reason for the notification:

An acquisition or disposal of voting rights

3

Full name of person(s) subject to the notification obligation:

Silchester International Investors Limited 

4

Full name of shareholder(s):

Silchester International Investors International Value Equity Trust

Silchester International Investors International Value Equity Taxable Trust

Silchester International Investors International Value Equity Group Trust

Silchester International Investors Tobacco Free International Value Equity Trust

The Calleva Trust

5

Date of the transaction and date on which the threshold is crossed or reached:

14 October 2009

6

Date on which issuer notified:

15 October 2009

7

Threshold(s) that is/are crossed or reached:

3%

8

Notified details:

N/A

A: Voting rights attached to shares

Class/type of shares If possible using the ISIN code

Situation previous to the triggering transaction

Number of shares

Number of voting rights

GB0004052071

11,438,811

11,438,811

Class/type of shares If possible using the ISIN code`

Resulting situation after the triggering transaction

Number of shares 

Number of voting rights

% of voting rights

Direct

Indirect

Direct

Indirect

GB0004052071

11,093,722

11,093,722

2.95%

B: Financial instruments

Resulting situation after the triggering transaction

Type of financial instrument

Expiration date

Exercise/Conversion Period/Date

Number of voting rights that may be acquired if the instrument is exercised/converted

% of voting rights

Total (A+B)

Number of voting rights

% of voting rights

11,093,722

2.95%

9

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

N/A

Proxy Voting:

10

Name of the proxy holder:

Silchester International Investors Limited

11

Number of voting rights proxy holder will cease to hold:

N/A

12

Date on which proxy holder will cease to hold voting rights:

N/A

13

Additional information:

Silchester International Investors Ltd ("Silchester") acts as investment manager for the clients detailed in Question 4 above (our "Clients"). In acting for our Clients, Silchester are given full discretion over their investments and are empowered to vote on their behalf.  However, we do not act as our Clients custodian and therefore shares are not held in our name but in the name of each Client's custodian bank.

14

Contact for further information:

Henry Heathfield

15

Contact telephone number:

020 7518 7147

Annex to Notification of Major Interests in Shares

A: Identity of the person or legal entity subject to the notification obligation

Full name (including legal form for legal entities)

Silchester International Investors Limited

Contact address (registered office for legal entities)

Time & Life Building

1 Bruton Street, 5th Floor

London W1J 6TL

Phone number

020 7518 7100

Other useful information (at least legal representative for legal persons)

Attn: Timothy Linehan, Compliance Officer

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