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South32 will mothball Mozambique's smelter by March, as power talks fail

South32, an Australian company, announced on Tuesday that it would place the Mozal aluminium plant in Mozambique, under care and maintenance by March. The cost will be $60 million.

The Perth-based company has been in negotiations with the Mozambique government and power providers for years to come up with an agreement that would allow it to continue its energy-intensive operations.

The parties remained in deadlock over an appropriate electricity rate, which was exacerbated due to the ongoing drought conditions affecting HCB's electricity supply, said South32 CEO Graham Kerr. Kerr was referring to the hydroelectric producer Hidroelectrica de Cahora Bassa.

Eskom, the South African utility, will take over if HCB, Mozal's primary power supplier, is unable to provide all of Mozal’s electricity needs.

South32 said that the contract expires in March and it has not purchased raw materials to continue operations after this date.

Aluminium production is energy-intensive. This makes a reliable and affordable electricity supply an important concern for producers of aluminium, such as South32.

Mozal, in which South32 has a stake of 63.7%, is a major contributor to the aluminium production by South32, with just under 29% of total aluminum production for fiscal 2025.

South32 reported a $372 million impairment to the Mozal Smelter's results for fiscal year 2025, reflecting "the financial impact" of the shutdown.

The company's shares closed the day at 2% less than they started, just minutes before the news was released. (Reporting and editing by John Biju, Bengaluru. Harikrishnan Nair and Janane Venkatraman)

(source: Reuters)