Additional Listing

Byotrol PLC
18 September 2007

                          Byotrol plc (the 'Company')



                               Additional Listing



The Board announces that, following the exercise of warrants, 192,458 ordinary
shares in the Company have been issued.



Accordingly, application has been made for 192,458 new ordinary shares to be
admitted to trading on AIM and it is expected that admission will take place on
24 September 2007.



The new ordinary shares will rank pari passu with the existing shares of the
Company. Following this allotment, the total issued share capital of the Company
will increase to 44,662,335 ordinary shares.





18 September 2007





Enquiries:



Byotrol plc                       0161 277 9518
Richard Bell                      07825 204110
Finance Director



Charles Stanley Securities        020 7149 6000
Nominated Adviser & Broker
Philip Davies/Carl Holmes




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