South32 divests aluminium portfolio to Alcoa

Overview of the Alcoa–South32 aluminium transaction: the deal structure, its components: cash, equity issuance, assumed liabilities, and contingent payments linked to future alumina and aluminium prices. The portfolio being transferred, spanning bauxite, alumina, and aluminium operations across Australia, Brazil, and South Africa, including ownership changes, cost positions, and global rankings, and how these reshape Alcoa’s production scale and cost curve positioning. A review of the current operating environment, highlighting production performance and cost pressures in Brazil, particularly at Alumar, and the exclusion of the Mozal smelter, which has been placed on care and maintenance because of high power costs. This insight includes valuation analysis, comparing the implied transaction metrics with net asset value and peer multiples, and summarises key risks and upside drivers. Finally, it sets out the strategic rationale for both companies.