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Maritana Minerals Limited (ASX:MRT)

ALERT: Price-sensitive ASX Announcement for MRT
Current share price for MRT : $0.610 -0.115 (-15.86%)+
Announcement
Release
24 Sep 2026 9:46AM
Price at Release
$0.725
Full Release
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Summary
Maritana Minerals Limited (ASX: MRT) announced that reverse circulation drilling at its 100%-owned Boorara Gold Project, 17 km east of Kalgoorlie-Boulder in Western Australia, has extended gold mineralisation below the planned Pit 4 floor and confirmed the system remains open at depth, supporting potential Mineral Resource growth ahead of a targeted mid-2027 mining restart as a key ore source for the Black Swan Processing Hub. The Boorara program forms part of Maritana’s broader approximately 60,000 m resource conversion campaign and has completed 119 holes for 17,246 m, with assays reported for the first 67 holes. Key deeper results below the current pit design include 23 m at 1.80 g/t Au from 177 m and 6 m at 3.68 g/t Au from 203 m in BOORD260043, while infill drilling also returned multiple strong intercepts that support mine planning, including 19 m at 2.32 g/t Au from 142 m, 24 m at 2.38 g/t Au from 122 m, 4 m at 8.52 g/t Au from 141 m, 25 m at 1.89 g/t Au from 150 m, and 1 m at 145.07 g/t Au from 105 m. The announcement states that the mineralisation style beneath Pit 4 is consistent with that mined above, with quartz-carbonate sheeted and stockwork vein arrays in quartz dolerite and steeply dipping sheared contacts, and that once remaining assays are received in the December 2026 quarter, Maritana plans to update the Boorara Mineral Resource Estimate, undertake further pit optimisation work below the current design, and complete additional grade control drilling before planned ore production in mid-2027.
Key Points
  • ASX announcement dated 24 September 2026 from Maritana Minerals Limited (ASX: MRT).
  • The announcement is focused on the Boorara Gold Project in Western Australia, 17 km east of Kalgoorlie-Boulder.
  • Drilling results show Boorara mineralisation extends below the planned Pit 4 floor and remains open at depth.
  • The deepest highlighted result was 23 m at 1.80 g/t Au from 177 m including 1 m at 6.88 g/t Au, plus 6 m at 3.68 g/t Au from 203 m including 1 m at 13.87 g/t Au in hole BOORD260043.
  • Infill drilling returned strong results including 19 m at 2.32 g/t Au from 142 m in BOORD260042.
  • Infill drilling also returned 24 m at 2.38 g/t Au from 122 m in BOORD260058.
  • Another notable result was 4 m at 8.52 g/t Au from 141 m including 1 m at 29.14 g/t Au in BOORD260039.
  • Hole BOORD260045 returned 25 m at 1.89 g/t Au from 150 m including 2 m at 10.9 g/t Au.
  • A very high-grade intercept of 1 m at 145.07 g/t Au was reported in BOORD260024.
  • The completed Boorara program comprised 119 holes for 17,246 m, with assays received for 67 holes reported in this release.
  • The drilling program forms part of Maritana’s approximately 60,000 m resource conversion campaign across multiple projects.
  • Results indicate the mineralisation style continues below the current pit design in the same orientation as previously mined zones.
  • Boorara mineralisation is hosted in quartz dolerite with sheeted and stockwork quartz-carbonate veins and steeply dipping sheared contacts.
  • Boorara is described as one of the key ore sources for the Black Swan Processing Hub.
  • Mining at Boorara was paused in December 2025 and the site is on care and maintenance.
  • Maritana is targeting a restart of mining at Boorara in mid-2027.
  • Remaining assay results are expected in the December 2026 quarter.
  • An updated Boorara Mineral Resource Estimate is planned after all assays are received.
  • Further pit optimisation below the current design is planned following the updated resource work.
  • Multi-stage grade control drilling is planned before open pit ore production resumes.
IMPORTANT NOTE: This information is autogenerated and has not been reviewed for accuracy or completeness. You should refer to the full announcement here for further information.