Rig Contract

Aminex PLC 03 April 2007 3 APRIL 2007 AMINEX PLC ("Aminex" or "the Company") SIGNING OF RIG CONTRACT Aminex PLC, the oil and gas company listed in London and Dublin, is pleased to announce that its wholly-owned Tanzanian subsidiary Ndovu Resources Ltd has signed a contract for the use of Maurel & Prom's Caroil-6 land drilling rig for use at Aminex's Nyuni / East Songo Songo licence. This rig has recently drilled Maurel & Prom's gas discovery well at the nearby Mkuranga licence in Tanzania and will drill a development well in the Songo Songo gas field before delivery to Aminex and partners, anticipated for late May. Aminex plans two wells at Nyuni, the first of which will be directionally drilled from the small Killiwani island, which lies one kilometre to the SW of Songo Songo Island. The drilling objective is a prospect known as Songo Songo South. Brian Hall, Chief Executive of Aminex, commented: "Securing the Caroil-6 rig is an important milestone in our 2007 drilling campaign. We are looking forward to commencing operations at Nyuni and will inform shareholders when there is further progress." END Enquiries: Aminex PLC +44 (0) 20 7291 3100 Brian Hall - Chief Executive Pelham Public Relations +44 (0) 20 7743 6679 Archie Berens This information is provided by RNS The company news service from the London Stock Exchange