RNS Number:2160O
K.S. Biomedix Holdings PLC
31 July 2003



NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION IN OR INTO THE UNITED STATES OF
AMERICA, CANADA, AUSTRALIA OR JAPAN

31 July 2003

FOR IMMEDIATE RELEASE

KS Biomedix Holdings PLC ("KSB")
ISIN : GB0004796669
Relevant Securities in Issue

Further to the announcement that KSB is in discussions that may or may not lead
to an acquisition, on merger terms, of KSB, KSB announces that the relevant
securities in issue in KSB are as follows:

Security                                                                Number

Ordinary Shares of 2 pence each                                     57,382,702
Exchangeable Shares (see note below)                                 7,119,029

Notes:

The Exchangeable Shares which have been issued by KSB's indirectly wholly owned
subsidiary, KS Biomedix Canada Inc., are exchangeable for 7,119,029 KSB Ordinary
Shares on the basis of one Ordinary Share for each Exchangeable Share.

Ends.
















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