S32 South 32
06 july 2026
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South32 (ASX: S32) is a globally diversified mining and metals company that primarily produces base metals, battery-grade materials, and precious metals. [1, 2, 3, 4]
Their core mined and refined resources include:
- Copper & Molybdenum: Mined at the Sierra Gorda operation in Chile.
- Silver, Lead, & Zinc: Extracted at their Cannington operation in Queensland, Australia.
- Manganese: Mined at the GEMCO operation on Groote Eylandt in Australia’s Northern Territory and in South Africa.
- Alumina & Aluminium: Produced through their bauxite mining, alumina refining, and aluminium smelting operations in Australia (e.g., Worsley Alumina in WA) and in Southern Africa and Brazil. [1, 2, 3] --- this is being sold to Alcoa 2026
- There is no Iron ore (which is good if you already have RIO and BHP).
- Development & Exploration:
You can explore their full range of global operations and commodity portfolios on the South32 Commodities page. [1, 2]
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South32’s (S32) flagship operation is the Cannington Mine in northwest Queensland. It is one of the largest and lowest-cost silver-producing mines globally, alongside their developing Hermosa project in Arizona, USA. [1, 2, 3, 4, 5]
Cannington Mine (Australia)
- Reserve size: 10 million tonnes of ore.
- Resource size: 53 million tonnes of underground mineral resource.
- Production scale: Processes approximately 1.8 to 2.8 million tonnes of ore per year.
- Annual output: Yields around 8 to 12 million ounces of silver per year, along with significant volumes of lead and zinc.
- Mine lifespan: Expected to operate through at least 2032. [1, 2, 3]
Hermosa Project (United States)
- Resource size: A globally significant deposit containing high-grade zinc, lead, and silver.
- Production scale: The Taylor deposit alone targets a 28-year mine life, with first production expected in the first half of 2027
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Over the last 5 years, ASX:S32 (South32) has experienced highly volatile earnings driven by fluctuating commodity cycles, but has maintained a consistently conservative balance sheet. While long-term earnings fell roughly 30% annually from 2021 to 2024, the company returned to solid profitability recently, most recently posting a half-year net income of US$433 million. [1, 2, 3]
Financial Snapshot
- Profitability & Margins: The company's bottom line has been heavily dependent on commodity prices. After posting a net loss in FY2024, the company bounced back to profitability in FY2025 and early 2026, recording a net profit margin of around 6.8% and a net income of US$32 million on a TTM basis. [1, 2, 3, 4]
- Debt: The balance sheet has been a major source of stability. S32 maintains a highly manageable debt-to-equity ratio consistently hovering between 10.3% and 19%. [1, 2, 3]
- Return on Equity (ROE): The 5-year average ROE sits at around 4.2%. This metric has been pressured by the cyclical downturns in its core markets and large capital expenditures, such as its investments in the Hermosa project. [1, 2]
- Shareholder Returns: Over the past 5 years, the stock's performance has been somewhat mixed compared to the broader mining industry due to volatile metal pricing and execution risks around new asset development. [1, 2]
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PE
The historical Price-to-Earnings (P/E) ratio for South32 Limited (ASX: S32) over the last 10 years highlights the volatile nature of a diversified mining stock. Significant fluctuations occur due to commodity price cycles, asset impairments, and accounting adjustments. [1, 2]
The P/E ratios at the end of each fiscal year (ending June 30) or calendar year-end from 2016 to 2026 are structured below. [1, 2, 3, 4]
Year-by-Year P/E Ratio History
| Year [1, 2, 3, 4, 5] | P/E Ratio | Financial Context & Drivers |
|---|---|---|
| 2026 (Current TTM) | 32.3 | High current multiple driven by normalized earnings recovering from asset impairments. |
| 2025 | 14.5 to 44.3 | Divergence based on statutory losses vs. underlying earnings adjustments. |
| 2024 | 48.3 | Elevated significantly by lower statutory net profit and lower production volumes. |
| 2023 | 5.0 | Exceptionally low due to record thermal coal and aluminum pricing driving high earnings. |
| 2022 | 4.4 | Near cyclical lows as net income surged amid post-pandemic commodity booms. |
| 2021 | Negative (-42.6) | Negative due to non-cash asset impairment charges on specific operations. |
| 2020 | Negative (-90.4) | Negative earnings caused by COVID-19 related demand shocks and asset write-downs. |
| 2019 | 24.2 | Moderated upward trend tracking stabilized base metal operations. |
| 2018 | 9.5 | Supported by solid free cash flow generation and the initiation of capital management buybacks. |
| 2017 | 12.1 | Sharp recovery into profitability following the mid-decade mining downturn. |
| 2016 | Negative | Negative trailing earnings following the company's demerger from BHP amid weak commodity prices. |
Crucial Financial Insights
- The Cyclical Trap: For resource stocks like South32, a very low P/E ratio (e.g., 4.4x in 2022) often points to peak earnings rather than a safe value buy. Conversely, a spiked or negative P/E often reflects temporary operational write-downs or bottom-of-the-cycle commodity pricing. []
- Historical Mean: The 10-year rolling mean sits at a negative statutory average due to deep accounting losses in 2020–2021. However, the median positive underlying P/E typically hovers around 11x to 14x during normalized mining cycles. [, 2]
- Forward vs. Trailing Data: While the trailing twelve months (TTM) P/E reads high at roughly 32.3x, analysts tracking South32 Stock Analysis quote a Forward P/E closer to 10.7x, signaling expected earnings recovery. [1, 2]
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