Blocklisting Interim Review

Halma PLC
20 July 2007


                                HALMA p.l.c.

                                 SCHEDULE 5

                     BLOCKLISTING SIX MONTHLY RETURN


1.   Name of company:                                Halma p.l.c.


2.   Name of scheme:                                 1990 Share Option Scheme


3.   Period of return:                               1 January 2007 to 30 June 2007


4.   Number and class of share(s) (amount of         74,800
     stock/debt security) not issued under
     scheme at start of period:


5.   Number of shares issued/allotted under          0
     scheme during period:


6.   Balance under scheme not yet issued/            74,800
     allotted at end of period:


7.   Number and class of share(s) (amount of         471,666 10p ordinary shares
     stock/debt securities) originally listed        admitted 12 July 2004
     and the date of admission:


Please confirm total number of shares in issue       373,445,795 including 805,635 Treasury shares
at the end of the period in order for us to
update our records:




                                  BLOCKLISTING SIX MONTHLY RETURN


1.   Name of company:                                  Halma p.l.c.


2.   Name of scheme:                                   1996 Unapproved Share Option
                                                       Scheme

3.   Period of return:                                 1 January 2007 to 30 June 2007


4.   Number and class of share(s) (amount of           920,280
     stock/debt security) not issued under
     scheme at start of period:


5.   Number of shares issued/allotted under            74,700
     scheme during period:


6.   Balance under scheme not yet issued/              845,580
     allotted at end of period:


7.   Number and class of share(s) (amount of           1,400,000 10p ordinary shares
     stock/debt securities) originally listed          admitted 24 October 2005
     and the date of admission:


Please confirm total number of shares in            373,445,795 including 805,635 Treasury shares
issue at the end of the period in order for
us to update our records:




                                  BLOCKLISTING SIX MONTHLY RETURN


1.   Name of company:                               Halma p.l.c.


2.   Name of scheme:                                1999 Company Share Option Plan


3.   Period of return:                              1 January 2007 to 30 June 2007


4.   Number and class of share(s) (amount of        2,152,296
     stock/debt security) not issued under
     scheme at start of period:


5.   Number of shares issued/allotted under         337,282
     scheme during period:


6.   Balance under scheme not yet issued/           1,815,014
     allotted at end of period:


7.   Number and class of share(s) (amount of        4,000,000 10p ordinary shares
     stock/debt securities) originally listed       admitted 16 June 2006
     and the date of admission:


Please confirm total number of shares in issue      373,445,795 including 805,635 Treasury shares
at the end of the period in order for us to
update our records:






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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