RNS Number:8723R
Alizyme PLC
10 November 2003


                                   SCHEDULE 5

                        BLOCKLISTING SIX MONTHLY RETURN


1. Name of company

Alizyme plc


2. Name of scheme

Alizyme plc Share Option Scheme


3. Period of return:

From    10 May 2003            To          9 November 2003


4. Number and class of shares(s) (amount of stock / debt security) not issued
under scheme

220,000


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

220,000


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

NIL


7. Number and class of share(s) (amount of stock / debt securities) originally
listed and the date of admission;

78,827,444 ordinary shares of 2p each fully paid. Admitted on 19 October 2000


Please confirm total number of shares in issue at the end of the period in order
for us to update our records

144,269,993 ordinary shares of 2p each fully paid.


Contact for queries

Name           Tim McCarthy, Finance Director

Address        Granta Park, Great Abington, Cambridge CB1 6GX

Telephone      01223 896 000


This material originates from the Financial Services Authority (FSA). All
copyrights relating to it are held by the FSA. Use of FSA material does not
indicate any endorsement by the FSA of its publication, or the material or views
contained within it.


                      This information is provided by RNS
            The company news service from the London Stock Exchange

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