Re Shareholding

Aminex PLC 10 January 2003 AMINEX PLC NOTIFIABLE INTEREST Aminex PLC, the oil and gas company listed on the London and Irish Stock Exchanges, received notification yesterday that Argonaftis Capital Management (Overseas) Ltd. controls 2,945,000 Ordinary shares of €0.06, which equates to 3.25% of the issued share capital. 10 January 2003 For enquiries please contact: Max Williams Tel: 44 20 7240 1600 Company Secretary This information is provided by RNS The company news service from the London Stock Exchange