Drilling Update

Aminex PLC 12 January 2004 AMINEX PLC ("Aminex" or "the Company") NYUNI-1 WELL UPDATE - 12 JANUARY 2004 Aminex PLC ("Aminex"), the oil and gas company listed in London and Dublin, announces progress on the Nyuni-1 well, offshore Tanzania. During the second half of December the well experienced operational problems which caused some delays. These problems have now been overcome and the well is currently drilling ahead in the Neocomian formation, the principal target for this well. Current depth is 3,201 metres and total depth is now likely to be approximately 3,400 metres. A further announcement will be made once total depth has been achieved and the well has been logged. Partners in the well are: Ndovu Resources Ltd. 60% (a 100% subsidiary of Aminex PLC) Petrom SA 30% Bounty Oil & Gas NL 10% 12 January 2004 For further information: Aminex, London +44 (0) 20 7240 1600 Brian Hall College Hill +44 (0) 20 7457 2020 James Henderson This information is provided by RNS The company news service from the London Stock Exchange

Companies

Aminex (CDI) (AEX)
UK 100

Latest directors dealings