Federal Resources Minister Madeleine King has backed Alcoa’s move to acquire South32’s aluminium assets, describing the deal as a vote of confidence in Australia’s resources sector and manufacturing capabilities.
Alcoa has struck an approximately $5.9 billion deal to acquire South32’s interests in a portfolio of bauxite, alumina and aluminium operations, strengthening its position as a leading upstream aluminium producer while expanding its global footprint.
The cash-and-stock transaction includes an upfront consideration of approximately $5.9 billion and a contingent value right of up to $1.1 billion, with future payments linked to agreed revenue-sharing based on alumina and aluminium prices.
Including net debt, primarily related to normal course financing leases, the transaction represents an implied enterprise value of approximately $6.8 billion.
King said the landmark agreement showed Australia remained a leading destination for global resources investment, with the transaction expected to strengthen onshore processing capabilities, secure supply and support local jobs.
“This is a significant moment for our resources sector and shows yet again the how the world is choosing Australia as a growth destination,” King said.
This acquisition adds what Alcoa described as a high-quality, low-cost and globally diversified portfolio of mining, refining and smelting assets, enhancing its mine-to-metal platform and supporting its long-term growth strategy.
The company expects the acquisition to generate approximately $1.3 billion in net present value synergies while immediately improving earnings per share and free cash flow following completion.
The transaction will also expand Alcoa’s presence in strategically important regions, reinforcing its operations in Australia and Brazil while establishing a new presence in South Africa.
Alcoa said the additional scale would improve supply chain resilience, reduce complexity, lower costs and strengthen its ability to supply customers amid growing demand for critical minerals and metals.
“This is exactly the type of opportunity Alcoa is built to execute,” Alcoa president and chief executive officer William Oplinger said.
“These high-quality, globally relevant assets are a strong strategic fit within our portfolio and align directly with our strengths as a leading pure-play upstream aluminium company.
“With our proven operating model and global capabilities, we are well positioned to enhance performance, unlock value, and support their long-term success within Alcoa.”
The deal comes after Alcoa reached a landmark agreement with the Federal Government earlier this year to modernise environmental approvals for its Western Australian bauxite operations, resolving uncertainty over its Huntly and Willowdale mines.
Under that agreement, Alcoa committed to paying $55 million in enforceable undertakings to remediate historical land clearing, described at the time as the largest conservation-focused commitment of its kind in Australia. The Government also granted a “national interest exemption” to allow operations to continue for 18 months while a full assessment is completed.
Federal Environment Minister Murray Watt said the exemption was important for Alcoa’s 6000 workers and for critical mineral supply.
“To regularise environmental approvals moving forward, the Australian Government has agreed to progress a strategic assessment agreement with Alcoa to guide sustainable mining at its Huntly and Willowdale mining operations,” Watt said.
“[The exemption] ensures the continued supply of bauxite and supports future gallium production, critical for renewable systems like solar panels and wind turbines.”
Oplinger said at the time that Alcoa welcomed the clearer pathway for its Western Australian operations.
“We are committed to responsible operations and welcome this important step in transitioning our approvals to a contemporary assessment process that provides increased certainty for our operations and our people into the future,” Oplinger said.
“We appreciate the Government’s recognition of the important contributions of our operations to the Australian economy.”
With the strategic assessment covering mining through to 2045 and separate assessments for the Myara North and Holyoake regions ongoing, Alcoa’s Australian bauxite footprint remains central to both its operational certainty and its longer-term upstream aluminium strategy.
The acquisition also follows a period of operational repositioning for Alcoa. In the three months to December 31 2024, the company increased its revenue by 20 per cent to $US3.5 billion, while net income increased 124 per cent sequentially to $202 million over the quarter. Adjusted earnings before interest, taxes, depreciation and amortisation rose 49 per cent sequentially to $677 million.
Across the whole of 2024, Alcoa’s revenue increased 13 per cent to $US11.9 billion. Those gains came despite the company curtailing operations at its Kwinana alumina refinery, a decision made based on the site’s age, scale, operating costs and the market at the time.
Alcoa said its refineries in the U.S., Canada and Norway more than made up for the transition, hitting several production milestones over the year.
“Reflecting on 2024, it was a productive year for Alcoa as we delivered on strategic actions and operational improvements, including closing the acquisition of Alumina Limited, announcing the sale of our interest in the Ma’aden joint ventures, hitting production records and improving operational stability,” Oplinger said in January 2025.
Alcoa chairman Thomas Gorman said the South32 acquisition would strengthen the company’s long-term financial performance.
“The Board is pleased to support this transaction, which we believe strengthens Alcoa’s competitive position, supports long-term earnings and cash flow growth, and creates lasting value for our shareholders,” Gorman said.
“We remain committed to the employees and stakeholders whose contributions are central to the success of these operations.”
Oplinger said the acquisition also reinforced the company’s commitment to supply security, responsible production and the communities in which it operates.
“By investing in this opportunity, we are underscoring our commitment to supply security for our customers, strengthening the communities in which we operate, and delivering responsibly produced materials that are essential to the global economy,” he said.
