Alumina Limited is an Australia-based mining company. Alumina Limited�s sole business undertaking is in the global alumina and aluminum industry, which it conducts primarily through bauxite mining and alumina refining, with some minor alumina based chemicals businesses, aluminum smelting and the marketing of those products. All of those business activities are conducted through its 40% investment in Alcoa World Alumina & Chemicals (AWAC). AWAC was formed on 1 January 1995 by Alumina Limited and Alcoa Inc (Alcoa) combining their respective global bauxite, alumina and alumina-based chemicals business and investments and their respective aluminum smelting operations in Australia. Alumina�s partner in AWAC is Alcoa, who owns the remaining 60% and manages the day-to-day operations.