| Industry: | Mining |
| Predecessor: | Western Mining Corporation |
| Location City: | Melbourne |
| Location Country: | Australia |
| Key People: | W Peter Day (Chairman) Mike Ferraro (Managing Director) |
| Products: | Aluminium, bauxite |
| Net Income: | $147 million |
| Net Income Year: | 2020 |
| Parent: | Alcoa |
| Subsid: | Alcoa World Alumina & Chemicals (40%) |
Alumina Limited is an Australian holding company. Spun off from Western Mining Corporation in 2002, its sole asset is a 40% shareholding in Alcoa World Alumina & Chemicals. In 2024, Alcoa acquired Alumina for US$2.2 billion.
Alumina was founded in December 2002 when Western Mining Corporation spun off its aluminium and bauxite assets.[1]
Alumina's only business activity is as the owner of a 40% share in Alcoa World Alumina & Chemicals (AWAC), a joint venture with Alcoa. AWAC owns two bauxite mines and three refineries (to extract aluminium oxide from bauxite) in Western Australia and owns a smelter (to extract pure aluminium) and has a 55% interest in the Portland aluminium smelter. AWAC also operates and has interests in Brazil, Guinea, Saudi Arabia and Spain.[2]
In 2016, Alumina Limited achieved great short term authority over its interest in AWAC with more influence over a broader suite of operational and investment decisions.[3]
Having been a dual-listed company with shares on both the Australian Securities Exchange (ASX) and New York Stock Exchange (NYSE), in February 2014 Alumina delisted from the NYSE, consolidating on the ASX.[4] [5]
Alcoa announced it would acquire Alumina for $2.2 billion in an all-stock deal in February 2024. As part of the deal Alcoa would gain full ownership of AWAC.[6] The acquisition was completed in August.[7]