Blocklisting Interim Review

Halma PLC
06 March 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 July 2006 to 31 December 2006


4.   Number and class of share(s) (amount of         84,133
     stock/debt security) not issued under
     scheme at start of period:


5.   Number of shares issued/allotted under          9,333
     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       373,033,813 including 628,635 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 July 2006 to 31 December 2006


4.   Number and class of share(s) (amount of           1,057,746
     stock/debt security) not issued under
     scheme at start of period:


5.   Number of shares issued/allotted under            137,466
     scheme during period:


6.   Balance under scheme not yet issued/              920,280
     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               373,033,813 including 628,635 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 July 2006 to 31 December 2006


4.   Number and class of share(s) (amount of         890,747
     stock/debt security) not issued under
     scheme at start of period:


5.   Number of shares issued/allotted under          890,747
     scheme during period:


6.   Balance under scheme not yet issued/            0
     allotted at end of period:


7.   Number and class of share(s) (amount of         1,200,000 10p ordinary shares
     stock/debt securities) originally listed        admitted 16 July 2001
     and the date of admission:


Please confirm total number of shares in issue       373,033,813 including 628,635 Treasury
at the end of the period in order for us to          Shares
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 July 2006 to 31 December 2006


4.   Number and class of share(s) (amount of        4,000,000
     stock/debt security) not issued under
     scheme at start of period:


5.   Number of shares issued/allotted under         1,847,704
     scheme during period:


6.   Balance under scheme not yet issued/           2,152,296
     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      373,033,813 including 628,635 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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