Alumina Limited has a 40% interest in Alcoa World Alumina and Chemicals but does not manage the operations, nor directly produce or sell alumina or aluminium.
For all product-related enquiries, contact Alcoa Inc.
To buy
www.alcoa.com/global/en/directory/directory.asp
http://www.alcoa.com/global/en/general/contact_alcoa.asp
To sell
www.alcoa.com/global/en/about_alcoa/sell_to_alcoa.asp