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    WA resources sector’s $8.1tn opportunity: mine-life and infrastructure lens for engineers

    September 17, 2026|

    Reviewed by Tom Sullivan

    WA resources sector’s $8.1tn opportunity: mine-life and infrastructure lens for engineers

    First reported on Australian Mining

    30 Second Briefing

    CMEWA economic modelling estimates Western Australia holds $8.1 trillion in remaining saleable mineral and energy products across 27 commodities, with iron ore and gold dominating the value. The analysis aggregates known resources and reserves under current technology and price assumptions, signalling very long mine-life potential for Pilbara iron ore hubs and major goldfields. For planners and geotechs, the scale points to sustained demand for large open pits, waste dumps and tailings storage, and long-horizon investment in rail, port and energy infrastructure.

    Technical Brief

    • CMEWA’s modelling aggregates remaining saleable product across 27 distinct mineral and energy commodities.
    • Iron ore and gold are identified as the dominant contributors to the $8.1 trillion valuation.
    • Economic work is led by CMEWA head of economics Aaron Walker, indicating sector-backed assumptions.

    Our Take

    Western Australia features heavily across the 1269 Mining stories in our database, and pairing that with CME’s $8.1 trillion inventory estimate signals that WA iron ore and gold assets are likely to remain the benchmark for project scale and longevity against other regions we track.

    With gold already prominent in recent price‑driven pieces in our database, the combination of high‑value WA gold endowment and elevated price volatility strengthens the case for life‑extension and brownfield expansions over greenfield risk in the state.

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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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