Dive Brief:
- Alcoa Corp. will acquire mining and metals assets from South32, expanding its operational footprint in Australia and Brazil while establishing a presence in South Africa for the first time, the Pittsburgh-based company said June 30.
- As part of the agreement, Alcoa will purchase Perth, Australia-based South32’s interests in bauxite mine, alumina refinery and aluminum smelter operations for $3.1 billion in upfront cash and 17 million Alcoa shares valued at $1 billion.
- The deal also includes roughly $750 million in assumed net debt and lease liabilities and up to $750 million in contingent cash consideration payable through 2030, based on aluminum and alumina price performance, according to global research firm Wood Mackenzie. The deal is expected to close in the first half of 2027.
Dive Insight:
The acquisition, if approved, would make Alcoa the world’s largest bauxite miner. Wood Mackenzie called it one of the most significant aluminum deals in recent years.
As South32 pivots into copper, Alcoa is making a long-term play to cement a dominant upstream position in bauxite and alumina, James Whiteside, director and head of corporate research at Wood Mackenzie’s metals and mining division, said in a statement.
“The deal is a cycle-timed exit by South32 and a long-term strategic bet by Alcoa,” he said.
South32 has been repositioning toward copper and critical minerals in recent years. It sold its coal assets in 2024 and Cerro Matoso ferronickel mine in Colombia in December. Meanwhile, the company has been advancing its $2.16 billion Hermosa development in southern Arizona, expected to be the only U.S. mining project capable of producing zinc and manganese.
Under the agreement, Alcoa will purchase South32’s Boddington bauxite mine and Worsley alumina refinery in Western Australia, as well as the Hillside aluminum smelter and idled Bayside smelter in South Africa. It also will buy the Mineração Rio do Norte bauxite mine and the Alumar alumina refinery and aluminum smelter in Brazil.
“Together, these are world-class refineries that complement our existing footprint and enhance our ability to generate value through the cycle,” William Oplinger, president and CEO of Alcoa said during a June 30 investor call about the acquisition.
Alcoa expects about $900 million in value synergies from the new assets, including about $50 million in cost savings within the first year of the deal closing, Oplinger said. The transaction is expected to be immediately accretive to Alcoa’s earnings per share and free cash flow.
Alcoa has been a net seller of alumina into the ocean freight market. The addition of Worsley and the Alumar complex give Alcoa greater influence over Atlantic basin alumina pricing and the flexibility to “direct volumes to its own smelters or into third-party markets,” Wood Mackenzie said.
Notably, the deal excluded South32’s Mozal aluminum smelter in Mozambique. In recent months, the asset has been in “care and maintenance” mode after South32 failed to negotiate a power deal with the country amid rising electricity costs, Business Insider Africa reported in March. Its exclusion from the deal reflects underlying asset risks that remain unresolved, Wood Mackenzie said.
