Rio Tinto Navigates Record Highs and Copper Setbacks with Aggressive Expansion Plans

Rio Tinto hits all-time closing high in Sydney but faces copper pullback. Amid volatility, it eyes a bigger stake in Argentina's Los Azules copper project and accelerates restructuring under CEO Simon Trott.

Rio Tinto finds itself caught between two powerful currents. The stock just notched an all-time closing high in Sydney, yet a sharp pullback in copper and a 5.22% slide in its euro-denominated shares on Friday underscore how quickly sentiment can shift. While the miner’s 32% surge over ten weeks in Australia has delighted shareholders, the underlying commodity markets are sending more cautious signals. That contrast sets the stage for a week in which Rio Tinto’s strategic moves — from a potential multi-billion-dollar copper acquisition to a sweeping internal overhaul — will face close scrutiny.

The record run in Australia took the ASX-listed shares from a cyclical trough of A$144.41 to an intraday high of A$192.30. By the close on May 14, they settled at approximately A$191.57, the highest closing price in the company’s history. Over the past twelve months, the stock remains a stellar performer, up 58.57% in euro terms despite Friday’s setback to €88.99. Technically, the chart now shows a mixed picture: the share price sits just above its 50-day moving average but well above the long-term 200-day line, suggesting the early euphoria has cooled but the underlying trend remains intact.

A Bigger Stake in Argentine Copper Takes Shape

Amid the market noise, Rio Tinto is quietly advancing one of its most ambitious growth projects. The company is reportedly considering boosting its current 17.2% stake in McEwen Copper, the owner of the Los Azules project in Argentina, one of the ten largest undeveloped copper deposits globally. A feasibility study values the asset at a net present value of nearly $3 billion, with first production targeted for 2030. McEwen Copper plans to raise around $4 billion to develop the mine and is eyeing an initial public offering later this year.

Rio Tinto’s in-house technology arm, Nuton, is already on site trialing a proprietary leaching process that could extend the mine’s life by more than three decades. While the miner has not officially confirmed an expansion of its stake, the CEO of McEwen Copper acknowledged ongoing and productive discussions. The move underscores Rio Tinto’s determination to capture the surging demand for copper from data centers, renewable energy infrastructure, and power grids, even as near-term prices wobble.

Restructuring Gathers Pace Under Simon Trott

Chief Executive Simon Trott, who took the helm in August 2025, is using a high-profile appearance at the Bank of America Global Metals, Mining & Steel Conference in Miami to lay out his vision. Rio Tinto now operates three divisions: iron ore, aluminium and lithium, and copper. Trott is targeting $5 billion to $10 billion in value extraction over time through asset sales and efficiency gains. The first fruits are already visible: initiatives implemented so far are expected to deliver annualized benefits of $650 million.

Cost control remains a key watchpoint. For Pilbara iron ore, Rio Tinto forecasts 2026 cash costs of $23.50 to $25.00 per wet tonne. On the copper side, expected C1 net unit costs stand at 65 to 75 US cents per pound. Not everything is running smoothly: the Canadian iron ore subsidiary IOC is grappling with aging equipment and financial constraints that threaten its 2026 output targets. By contrast, the lithium projects Fenix 1B and Sal de Vida are on track to begin production in the second half of 2026, adding a new earnings driver.

Copper and Iron Ore: Mixed Signals Beneath the Surface

Copper remains the most sensitive lever for Rio Tinto’s near-term share price. Futures fell to around $6.30 per pound on Friday as high prices curbed Chinese demand and U.S. inflation data reignited rate-hike fears. Yet the longer-term tailwinds — clean energy, technology, and AI infrastructure — are far from exhausted. Supply constraints, including Chinese restrictions on sulfuric acid exports and production snags in the Middle East, provide structural support. Rio Tinto plans to produce 800 to 870 kilotonnes of copper in 2026.

Iron ore, still the company’s backbone, delivered its second-highest quarterly production since 2018 in the first quarter, up 13% year on year. Cyclones disrupted Pilbara shipments, knocking out roughly 8 million tonnes, though the miner expects to recover about half of that volume. The iron ore price has stabilized near $105.85 per tonne, underpinned by high transport costs and resilient Chinese demand.

What Comes Next

Analysts covering Rio Tinto’s New York-listed ADRs offer price targets ranging from $101.75 to $120, with Argus at the high end pointing to further upside. In the days ahead, two developments will dominate attention: how copper reacts after its recent slump, and whether Rio Tinto moves to monetize non-core assets such as its iron and titanium and borates businesses, where it is currently gauging market interest. Any formal progress on the Los Azules stake would inject fresh momentum into a stock that has already enjoyed a remarkable run — but one that now faces a reality check from the commodity markets themselves.