If You Invested in Harmony Gold Mng (HMY)

Harmony Gold Mining Company Limited (NYSE: HMY, JSE: HAR) is a gold and copper mining and development company. According to its SEC filings, Harmony describes itself as operating and holding assets in South Africa, Australia and Papua New Guinea. Gold remains its core business, while copper is highlighted as a strategic addition intended to enhance portfolio resilience and long-term sustainability.

Harmony’s filings state that it is South Africa’s largest gold producer by volume, with a portfolio that includes underground mines, an open pit operation and several surface retreatment operations in South Africa, as well as an open pit mine and exploration tenements in Papua New Guinea. The company reports that it has more than two decades of operating experience in Australia and Papua New Guinea.

Gold and copper focus

In its FY25 results and subsequent operational updates, Harmony explains that its strategy is centred on value enhancement rather than simple volume growth. The company emphasises maintaining high recovered grades at its underground operations, disciplined cost management, and sustaining margins through different commodity cycles. Harmony’s disclosures also note that copper is viewed as a “future-facing” metal that supports the global energy transition and complements its gold portfolio.

Harmony reports that it is expanding its copper exposure through projects and acquisitions. Its filings refer to copper-focused growth projects such as the Eva Copper Project and the Wafi-Golpu copper-gold project, as well as the MAC Copper acquisition, which adds an operating copper mine to the group.

MAC Copper acquisition and CSA copper mine

On 24 October 2025, Harmony filed a Form 6-K announcing the completion of its acquisition of MAC Copper Limited, the owner of the CSA copper mine in New South Wales, Australia. The transaction was implemented via a Jersey law scheme of arrangement. Harmony’s update describes the CSA mine as a high-grade, long-life, mechanised underground copper mine located in what it calls a Tier-1 mining jurisdiction.

Harmony’s Q1FY26 operational update further notes that the acquisition of MAC Copper provides immediate copper production and that the CSA mine is being integrated into Harmony’s broader portfolio and planning framework. The company indicates that the CSA mine will be incorporated into its life-of-mine planning and future production guidance.

Geographic footprint

Harmony’s SEC filings and transaction announcements consistently reference operations and assets in three main regions:

• South Africa – Underground gold mines, an open pit operation and surface retreatment operations.
• Papua New Guinea – An open pit mine and exploration tenements.
• Australia – An operating copper mine (CSA) following the MAC Copper acquisition, and copper development projects referenced in its results and strategy discussions.

The company positions this geographic mix as a way to diversify its asset base across multiple mining jurisdictions.

Operational and financial themes from filings

Harmony’s FY25 results and trading statements highlight several recurring themes:

• A focus on underground recovered grades at its South African operations, with the company reporting year-on-year improvements in these grades.
• Emphasis on meeting production, cost and grade guidance over multiple years, which Harmony characterises as a decade of consistent delivery.
• Discussion of all-in sustaining costs (AISC) and all-in costs (AIC) as key measures of cost performance, with increases linked to planned investment in life-of-mine extension projects and energy initiatives.
• Reference to record adjusted free cash flow in FY25, which the company attributes to higher recovered grades and a higher average gold price received.

Harmony also reports that it uses hedging, including gold zero-cost collars, to manage price risk while aiming to preserve exposure to higher commodity prices.

Safety and sustainability

Across its FY25 results, trading statements and operational updates, Harmony repeatedly states that safety is a core value and that it aims for “zero harm.” The company reports an all-time low lost time injury frequency rate (LTIFR) for FY25, while also acknowledging loss-of-life incidents and describing internal reviews and safety initiatives undertaken in response.

Harmony’s filings also refer to sustainability and environmental, social and governance (ESG) considerations. The company notes recognition in external ESG assessments and outlines investments such as a 100MW solar project and water treatment infrastructure, which it links to long-term energy and water management objectives.

Strategic direction

In its FY25 communications, Harmony states that its strategy is to prioritise “value enhancement over volume growth.” This includes allocating capital to higher-margin, lower-risk assets, extending the life of existing mines where justified, and adding copper exposure through projects and acquisitions. The company presents copper as a complement to gold that can provide diversification and exposure to demand linked to electrification and decarbonisation.

Harmony’s acquisition of MAC Copper and its references to copper projects such as Eva Copper and Wafi-Golpu are described in filings as key elements of this gold-and-copper growth strategy.