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    Rio Tinto $10B asset selloff: portfolio, capex and cost reset for mine planners

    December 4, 2025|

    Reviewed by Tom Sullivan

    Rio Tinto $10B asset selloff: portfolio, capex and cost reset for mine planners

    First reported on MINING.com

    30 Second Briefing

    Rio Tinto chief executive Simon Trott is targeting $5–10 billion from divestments and productivity gains by 2030, narrowing the portfolio to iron ore, copper, aluminium and lithium while cutting annual group capex to below $10 billion from 2028 and trimming decarbonisation spend to $1–2 billion through 2030. Non-core assets on the block include titanium dioxide, borates, land, infrastructure and processing facilities, with unit costs targeted to fall 4% between 2024 and 2030. Copper output is forecast at 860,000–875,000 tonnes in 2025, rising toward a 1 Mtpa target by 2030, while Simandou’s ramp-up is now guided at only 5–10 Mt of iron ore sales in 2026.

    Technical Brief

    • Leadership ranks have already been reduced, with associated restructuring expected to yield about $650 million annual productivity gains.
    • Capital will be withdrawn from projects where third‑party funding is below Rio Tinto’s cost of capital threshold.
    • Spending on BioIron and the Jadar lithium project in Serbia is currently paused pending portfolio and returns review.
    • Non‑core disposals explicitly target titanium dioxide and borates businesses, plus selected land, infrastructure and processing assets.
    • Governance constraints on share buybacks are being negotiated with major shareholder Chinalco to enable more flexible capital returns.
    • Unit operating costs across the group are planned to fall by 4% between 2024 and 2030 via efficiency programmes.

    Our Take

    With Rio Tinto signalling $5–10 billion of divestments while BHP is pursuing large-scale M&A around Anglo American and Teck Resources in our recent coverage, the competitive gap may widen between Rio’s balance-sheet ‘tidying’ and BHP’s push for copper and iron ore growth optionality.

    The reduced decarbonisation spend (from a previously flagged $5–6 billion down to $1–2 billion through 2030) suggests that lower-return abatement projects at assets such as Pilbara iron ore and aluminium/bauxite operations could be deferred, which may leave Rio more exposed if carbon pricing tightens in Australia, Canada or the EU.

    Rio’s plan to cap group capex below $10 billion per year from 2028, even as Simandou and Oyu Tolgoi copper ramp up, implies that non-core growth options in commodities like borates, titanium dioxide and antimony-gold (Hillgrove) are more likely to be shelved or sold rather than advanced to construction.

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    Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.

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