O Margem de operação de Alumina Limited é -2,220.00%
A margem operacional é a razão da receita operacional dividida pelas vendas líquidas e apresentada em porcentagem.
Operating margin is an indicator of profitability and is often used to compare the profitability of companies and industries of differing sizes. Companies are collections of projects and markets, individual areas can be judged on how successful they are at adding to the corporate net profit. Not all projects are of equal size, however, and one way to adjust for size is to divide the profit by sales revenue. The resulting ratio is the percentage of sales revenue that gets 'returned' to the company as net profits after all the related costs of the activity are deducted.
Alumina Limited, through its 40% interest in Alcoa World Alumina and Chemicals, engages in bauxite mining, alumina refining, and aluminum smelting businesses. The company has a network of bauxite mines and alumina refineries in Australia, Guinea, Brazil, and Spain, and Saudi Arabia; and a 55% interest in the Portland aluminium smelter in Victoria, Australia. It is also involved in shipping operations. The company was formerly known as WMC Limited and changed its name to Alumina Limited in December 2002 as part of the demerger of the WMC Group. Alumina Limited was incorporated in 1970 and is headquartered in Southbank, Australia.