Additional Listing

Aminex PLC 12 December 2007 AMINEX PLC ADDITIONAL LISTING Aminex PLC announces that it has today made application to the Irish Stock Exchange and the UK Listing Authority for the listing of 49,962 Ordinary Shares of €0.06 each, which will rank pari passu with existing shares in issue, to be admitted to the Official List of the Irish Stock Exchange and the Official List of the Listing Authority and application has been made to the Irish Stock Exchange and the London Stock Exchange for these shares to be admitted for trading. The shares have been issued pursuant to the exercise of warrants in accordance with the placing and rights issue completed in July 2007. The exercise price of the warrants was Stg 22 pence. It is expected that admission will take place and dealings will commence in these new ordinary shares on 18 December 2007. On completion of this listing, the total number of voting rights of Aminex PLC will be 242,081,709. Enquiries Max Williams 0044 (0) 20 7291 3100 Aminex PLC This announcement has been issued through the Companies Announcement Service of the Irish Stock Exchange. This information is provided by RNS The company news service from the London Stock Exchange