Karlawinda expansion after record output: design and risk notes for mine planners
Reviewed by Joe Ashwell
First reported on Australian Mining
30 Second Briefing
Capricorn Metals’ Karlawinda Gold Project in Western Australia delivered record annual output of 123,589 ounces in FY 2025–26, at the top of its 115,000–125,000 ounce guidance, including 30,437 ounces in the June 2026 quarter. The operation is now transitioning to an expansion phase, signalling higher future throughput from its single large-scale open pit and associated CIL plant. For mine planners and geotechs, the ramp-up will likely require updated pit designs, revised geotechnical domains and potential upgrades to haulage and tailings capacity.
Technical Brief
- Single large-scale open pit operation, implying wide catch benches and long-haul ramp geometries.
- Gold processing via a conventional carbon-in-leach (CIL) plant, not heap leach or flotation.
- Record output suggests current plant and mining fleet are operating at or near nameplate capacity.
- Transition to expansion phase will trigger updated mine scheduling, cutback sequencing and pushback design.
- Higher ore throughput will likely demand increased waste stripping and revised pit wall geotechnical assessments.
- Expansion planning will need integrated upgrades to ROM pad, stockpile capacity and crusher feed arrangements.
- Similar single-pit CIL operations can benchmark ramp-up performance and expansion timing against Karlawinda’s trajectory.
Our Take
Karlawinda’s record output comes as Capricorn Metals has been reshaping its portfolio, including selling the Big Springs Gold Project in Nevada to Sentinel Metals for up to $26 million, which likely frees capital and management focus for Western Australian growth.
Our database shows several recent Capricorn Metals items centred on new tenement acquisitions in Western Australia (such as Yalgoo and the Extension Hill–Mungada package), suggesting the Karlawinda expansion is being paired with a broader regional hub strategy rather than a single-asset build-out.
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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