Diversified miner South32 has signed a binding conditional agreement to sell its aluminium value chain assets, including its interest in Worsley Alumina, in Australia, and Hillside Aluminium, in South Africa, to NYSE- and ASX-listed Alcoa Corporation for up to $5.6-billion. South32's Mozal Aluminium operation, in Mozambique, is, however, excluded from the transaction. The operation remains on care and maintenance, with divestment under "active consideration".

Alcoa Announces Strategic Acquisition of South32’s Bauxite, Alumina, and Aluminum Assets for $4.1 billion

Graham Kerr’s final act as chief will see US giant Alcoa buy the miner’s Australian and Brazilian aluminium assets.

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The Hillside smelter is the only primary aluminium smelter in SA