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    Alkane’s strongest quarter post‑Mandalay merger: planning lessons for mine engineers

    February 13, 2026|

    Reviewed by Joe Ashwell

    Alkane’s strongest quarter post‑Mandalay merger: planning lessons for mine engineers

    First reported on Australian Mining

    30 Second Briefing

    Alkane Resources has posted what it calls the strongest quarter in its history after its August 2025 merger with Mandalay Resources, consolidating the Tomingley gold operation in NSW with two Mandalay underground gold–antimony mines into a three-mine portfolio. The enlarged group has focused on higher-grade stopes, tighter unit-cost control and shared technical services across the sites, lifting group mill throughput and gold-equivalent output while cutting all-in sustaining costs. For mine planners and geotechs, the integration is driving more aggressive cut-off grade strategies and coordinated underground scheduling across multiple orebodies.

    Technical Brief

    • Consolidated technical services are centralising geotechnical modelling, enabling shared rock mass characterisation and common design assumptions across mines.
    • Joint mine planning is aligning development advance rates with mill feed requirements, reducing stockpile swings and rehandle.
    • Portfolio-level capital allocation is being used to prioritise high-return underground development drives over marginal cutbacks.
    • Cross-site benchmarking of drilling and blasting parameters is standardising fragmentation targets and reducing overbreak in narrow-vein stopes.
    • For similar multi-mine mining portfolios, integrated scheduling and shared geotech models can materially change cut-off and sequencing strategies.

    Our Take

    Among the 327 gold-related pieces in our database, very few involve M&A centred on Australian mid-tier producers, so Alkane Resources’ merger with Mandalay Resources in 2025 positions Tomingley as part of a relatively rare consolidation move rather than the more common single-asset expansion stories.

    NSW gold operations like Tomingley feature far less frequently in our coverage than Western Australian goldfields, which suggests Alkane’s enlarged post-merger footprint could attract more investor attention to NSW as a jurisdiction for brownfield growth and bolt-on deals.

    Because the deal_type is flagged as M&A rather than a project JV or offtake, the August 2025 merger likely gives Alkane direct control over Mandalay’s production and cash flow, which can materially change capital allocation options for Tomingley’s mine life extensions or underground development phases.

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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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