Maritana Minerals Limited (ASX:MRT) has disclosed assay results from the final 52 reverse circulation drill holes completed at its 100%-owned Boorara Gold Project, located 17km east of Kalgoorlie-Boulder in Western Australia, with the program returning intercepts including 20m at 7.77 g/t Au from 100m in hole BOORD260054 and extending gold mineralisation below the floor of the planned southern open pit.

Key Points

  • Final 52 holes of a 119-hole RC drilling program at Boorara have returned assay results, completing the resource definition and extensional campaign
  • Key intercept of 20m at 7.77 g/t Au from 100m, including 2m at 54.04 g/t Au from 114m, recorded in hole BOORD260054
  • Down-plunge drilling beneath Pit 4 returned 36m at 3.53 g/t Au from 142m, including 1m at 62.44 g/t Au from 156m (BOORD260149), with mineralisation confirmed open at depth
  • An updated Boorara Mineral Resource Estimate is due in the March 2027 quarter, with further pit optimisation to follow
  • Mining restart at Boorara is targeted for mid-2027 as an ore source for the Black Swan Processing Hub

Boorara Drill Program Results and Intercepts

The completed 119-hole RC program at Boorara forms part of a broader approximately 60,000-metre resource conversion campaign across multiple deposits. Infill drilling was conducted primarily between the recently mined Pits 2 and 4, with follow-up extensional drilling to the north of Pit 2 and down dip of Pit 4. Additional significant intercepts from the final batch include 19m at 1.63 g/t Au from 108m (BOORD260056), 19m at 1.32 g/t Au from 66m (BOORD260100), and 10m at 1.67 g/t Au from 30m (BOORD260119). The filing states the system remains open to the north and at depth.

Down-Plunge Extensions Below Pit 4

Two drill holes were directed down the plunge and dip of mineralisation from the bottom of Pit 4 and south of Pit 2 respectively. The filing notes these orientations were designed to test orebody extension below Pit 4 and to obtain information on gold distribution and vein orientation within the mineralised zones. Hole BOORD260149, drilled from the bottom of Pit 4, also returned a separate intercept of 20m at 1.75 g/t Au from 34m. Hole BOORD260148, drilled down dip, returned 12m at 1.28 g/t Au from 12m. The filing states both holes are not representative of the true width of the main contact gold lode.

Boorara Mineral Resource Estimate and Project Timeline

Results from the completed Boorara program will be incorporated into an updated Mineral Resource Estimate due in the March 2027 quarter, with further pit optimisation to follow. Diamond drilling activities for mining assumptions and drill quality assurance and quality control are planned in the coming months. The Boorara Gold Project, which hosts mineralisation across the Royal, Regal and Crown Jewel deposits over approximately 1.5km of strike on granted Mining Leases, is identified as a key Life of Mine ore source for the Black Swan Processing Hub, with the mining restart targeted for mid-2027.