Best ASX copper stocks 2026: BHP, Rio Tinto and Sandfire compared

In the first half of FY2026, copper contributed 51% of BHP's underlying EBITDA — the first time in the company's history that copper has overtaken iron ore as its biggest earnings driver. That one fact captures something important about where we are in the copper cycle and what it means for ASX copper investors.

Copper prices have reached all-time highs driven by a straightforward supply-demand imbalance: electrification is driving unprecedented demand while new mines take 15–20 years to develop. The IEA projects a potential 30% global copper supply shortfall by 2035. Australia holds the world's second-largest copper reserves. The case for Australian copper stocks is not complicated.

Here is how the three main ways to own ASX copper compare.

For background on why copper is so central to the electrification story, see Australia's critical minerals explained.

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The three ASX copper stocks at a glance

Company	Ticker	Market cap	Copper exposure	Key differentiator
BHP Group	ASX: BHP	~$255B	High but diversified	World's largest/second-largest copper producer
Rio Tinto	ASX: RIO	~$232B	Moderate but growing	Oyu Tolgoi ramp-up, adding lithium
Sandfire Resources	ASX: SFR	~$8–9B	Pure play	Two operating mines, net cash position

Market cap data as at mid-July 2026.

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BHP (ASX: BHP) — the copper giant in a diversified wrapper

BHP is the simplest starting point. It is either the largest or second-largest copper producer in the world (depending on the quarter and the measurement), alongside Freeport-McMoRan. Its operations include Escondida in Chile (the world's largest copper mine), Copper South Australia (the Olympic Dam complex, BHP Copper Carrapateena, and related operations), and a 33% stake in Antamina in Peru.

The FY26 picture: In the six months to December 2025, BHP's copper operations generated US$7.95 billion in underlying EBITDA. Copper contributed 51% of total group underlying EBITDA — the first time it has overtaken iron ore. Full-year FY26 copper production guidance is 1.9–2.0 million tonnes. BHP itself has called copper its highest-conviction long-term commodity.

The tradeoff with BHP: You get a world-class balance sheet, genuine diversification (iron ore, potash, and copper), a strong dividend history, and one of the most capable mine management teams on Earth. What you give up is a pure copper thesis. At any given point, BHP's share price reflects iron ore prices, potash prices, and copper prices simultaneously. If you specifically believe copper will outperform iron ore, holding BHP means you own iron ore anyway.

For most Australian investors with a long time horizon who want green metals exposure without single-commodity risk, BHP is an entirely reasonable option. It is the dominant position in the WIRE ETF at 5.6%, and owning BHP directly gives you more transparency into the underlying business.

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Rio Tinto (ASX: RIO) — copper growth with lithium alongside it

Rio Tinto is the second of Australia's two mining giants, and its copper strategy has been accelerating. Its flagship copper project is Oyu Tolgoi in Mongolia — one of the world's largest undeveloped copper deposits — which has been ramping up underground production and targeting 870,000 tonnes of copper in 2026. Rio also owns Kennecott in Utah (one of the world's largest open-pit copper mines) and holds a 30% stake in the Escondida operation alongside BHP.

Where Rio diverges from BHP is in its lithium ambitions. Rio has gone harder into lithium than BHP — it holds the Rincon lithium brine project in Argentina and has made clear that lithium alongside copper is the strategic direction for its green metals portfolio. Investors who want both copper and lithium growth in their major mining stock have a more explicit case with RIO than with BHP.

The context: Like BHP, Rio Tinto is a diversified major. Iron ore still accounts for a large share of its earnings, and that will remain true for years. If copper and iron ore move in opposite directions, the diversification cushions — but also dilutes — your copper thesis. RIO's share price of approximately A$163 in mid-2026 reflects this diversified picture.

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Sandfire Resources (ASX: SFR) — the pure play

Sandfire is the ASX's clearest pure-play copper investment. With approximately $8–9 billion market cap and operations spanning two continents, it has grown significantly from its origins as a single-mine WA copper producer.

Current operations:

• MATSA (Iberian Pyrite Belt, Spain) — an underground copper, zinc, and lead operation acquired in 2022, now Sandfire's largest asset by revenue. Q3 FY26 production of 21.7kt copper equivalent, with some near-term headwinds from rainfall and maintenance.
• Motheo (Botswana) — the T3 and A4 deposits feeding a central processing plant, approaching peak production of approximately 55,000 tonnes of copper per annum.

The FY26 numbers: Record Q3 FY26 revenue of A$408 million, EBITDA of A$220 million, and the company moved to a net cash position of approximately A$76 million — having eliminated more than A$300 million in net debt over the previous twelve months. Full-year FY26 guidance of 149–165kt copper equivalent, expected to come in towards the lower half of that range.

The bull case: Two operating, cash-generating mines. Net cash balance sheet. Pure copper exposure without the iron ore dilution of BHP or RIO. A company that has successfully executed an international acquisition (MATSA) and built a Botswana greenfield operation.

The bear case: Sandfire is a $8–9B company, not a $250B company. Single-company operational risk is real — a production miss or cost overrun at either mine has a direct share price impact. The company has no diversification buffer if copper prices fall. And copper prices are cyclical, even if the structural demand story is compelling.

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Comparison: which suits your goals?

If your goal is...	Consider
Maximum copper exposure, pure play	Sandfire (SFR)
Copper exposure with a quality balance sheet and diversification	BHP
Copper + lithium exposure in a single large-cap stock	Rio Tinto
Copper exposure without picking individual stocks	WIRE ETF

For investors who prefer not to choose between BHP, RIO, and SFR, the WIRE ETF holds all three as top-five positions. See our WIRE ETF review for details.

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The copper price cycle: a word of caution

All three companies are leveraged to copper prices. Copper has been at or near all-time highs through 2025–26, driven by electrification demand and constrained supply. That is not a permanent state. If a global recession reduces industrial demand, or if new mines commission more quickly than expected, copper prices can fall sharply.

BHP and RIO have the diversification and balance sheet strength to weather price downturns. Sandfire, with net cash but no revenue diversification, is more exposed to a sustained copper price decline. Size your position with that in mind.

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Frequently asked questions

1. What is the best ASX copper stock? It depends on your goals. BHP is the most diversified and defensively positioned. Rio Tinto offers copper + lithium growth with a similar quality balance sheet. Sandfire Resources is the clearest pure-play but carries more single-company risk. If you do not want to pick, the WIRE ETF holds 44 global copper miners including all three.

2. Is BHP primarily a copper company now? Not entirely — iron ore remains a massive part of BHP's revenue and asset base. But copper overtook iron ore as BHP's largest EBITDA contributor for the first time in the first half of FY2026 (51% of group EBITDA), reflecting how much BHP has tilted its portfolio toward copper. It is heading in that direction.

3. What does Sandfire Resources actually mine? Sandfire operates two mines: MATSA in Spain (copper, zinc, lead) and Motheo in Botswana (copper). Both are currently operating. In Q3 FY26 the company produced 34.5kt copper equivalent and had a net cash position of approximately A$76M.

4. Is Rio Tinto a copper stock? Rio Tinto has significant copper assets (Oyu Tolgoi, Kennecott, Escondida stake) but is primarily a diversified mining major. Copper is its fastest-growing division. Unlike BHP, Rio has also made explicit lithium investments (Rincon project), making it more of a combined green metals play.

5. Why is copper at all-time highs in 2026? Electrification is driving structural demand growth: EVs require roughly 70kg of copper each, data centres consume thousands of tonnes per facility, and renewable energy grid upgrades are copper-intensive. At the same time, new mine supply takes 15–20 years to develop, and ore grades at existing mines are declining. The IEA projects a potential 30% supply shortfall by 2035.

6. Is there a pure-play copper ETF on the ASX? Yes — WIRE (Global X Copper Miners ETF) holds 44 global copper miners at 0.65% per annum, with $768M in AUM as at July 2026. It returned 61.8% in the 12 months to July 2026. See our WIRE ETF review for full details.

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Sources

• BHP H1 FY2026 results — media release
• Rio Tinto — Oyu Tolgoi operations
• Sandfire Resources Q3 FY26 quarterly report
• IEA Electricity 2026 — demand and supply outlook

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This article is for general information only and does not constitute financial, tax or legal advice. Share prices and market capitalisations are indicative as at July 2026 and change continuously. Past performance is not a reliable indicator of future returns. Consult a licensed financial adviser before making investment decisions.