Aminex PLC, together with its subsidiaries, engages in the exploration, appraisal, development, and production of oil and gas assets, reserves, and resources. The company operates through Producing Oil and Gas Properties, Exploration Activities, and Oilfield Services segments. Its properties include the Kiliwani South, Ruvuma PSA, and Nyuni Area PSA exploration licenses located primarily in Tanzania. Aminex PLC was incorporated in 1979 and is based in Dublin, Ireland.