South32 manganese output rebounds in Q4 after cyclone delays; shares up

Australia's South32 Ltd reported a significant recovery in June quarter manganese ore production to 1.1 million wet metric tons, up sharply year-over-year, following disruptions from Tropical Cyclone Megan. Despite this operational rebound, the company forecasts an underlying EBITDA loss of $100 million to $120 million for its Australian manganese operations in fiscal 2025 as recovery continues. The miner also achieved 20% full-year copper output growth and 6% aluminum growth, alongside a $517 million investment in its Hermosa project and the divestment of Cerro Matoso, contributing to a nearly 2% rise in its Sydney-listed shares.

Analysis

South32 Ltd (ASX:S32) has reported a mixed operational update, characterized by a strong production recovery in its manganese segment but clouded by a negative forward-looking financial outlook for that same unit. Quarterly manganese ore output rebounded sharply to 1.1 million wet metric tons from 534,000 wmt year-over-year, exceeding guidance as operations resumed following Tropical Cyclone Megan. However, this operational success is tempered by a forecast for the Australian manganese operations to incur an underlying EBITDA loss of $100 million to $120 million in fiscal 2025, indicating that the financial impact of the disruption will be prolonged. Beyond manganese, the company demonstrated strength across its diversified portfolio, posting a 20% jump in full-year copper output and a 6% rise in aluminum production. Strategically, South32 is actively managing its assets, evidenced by a $517 million investment into its Hermosa growth project and the divestment of Cerro Matoso. The market's initial reaction was positive, with shares rising nearly 2%, suggesting investors are currently weighing the broad-based commodity strength more heavily than the specific, medium-term manganese profitability issues.

Key Decisions for Investors

• Investors should weigh the strong operational recovery and diversified commodity growth in copper and aluminum against the material guidance for a $100-$120 million EBITDA loss in the Australian manganese unit for fiscal 2025.
• The ongoing financial recovery from the cyclone's impact on manganese operations remains a key risk factor, and any revisions to the projected EBITDA loss should be monitored closely.
• Consider the company's long-term strategic actions, such as the $517 million investment in the Hermosa project and portfolio streamlining, as potential long-term value drivers that may counterbalance near-term segment-specific headwinds.