Rox Resources Limited (ASX:RXL) has reported that the first production stope at its United North underground mine has been successfully fired and extracted, coinciding with a record 647 metres of underground development advance achieved in October, as the company advances its 100%-owned Youanmi Gold Mine in Western Australia toward first gold in mid-CY2027.

Key Points

  • First production stope at United North successfully fired and extracted on the 2356 level, with the second stope being drilled
  • Record 647 metres of underground development advance achieved in October, exceeding planned development rates
  • Significant infill drill intercepts include 5.50m @ 15.46g/t Au from 168.00m (UNN26_044), including 1.01m @ 63.12g/t Au from 172.49m
  • Two high-grade intercepts identified outside the existing mine plan, with potential for additional ounces to be evaluated for incorporation
  • Youanmi Processing Plant construction advancing on schedule, with ball mill delivered onsite and first structural steel on site

United North Infill Drilling Results

Underground diamond drilling at United North continued during October, with 18 holes totalling 2,454 metres completed. Mineralised shear zones were observed in all drill holes, according to the filing. Significant intercepts include 7.42m @ 9.91g/t Au from 236.55m (UNN26_043), including 0.79m @ 43.81g/t Au; 5.50m @ 15.46g/t Au from 168.00m (UNN26_044), including 1.01m @ 63.12g/t Au from 172.49m; 2.24m @ 21.79g/t Au from 246.76m (UNN26_046); and 5.88m @ 3.63g/t Au from 127.00m (UNN26_047). Drilling is continuing on a nominal 20 metre by 20 metre spacing, with operations now targeting below the 2280mRL level.

Mining Operations and First Stope Extraction

Mining at Youanmi achieved a record 647 metres of underground development advance in October, the filing states, continuing to exceed planned development rates. The first production stope at United North was successfully fired and extracted, with the filing noting that ground and brow conditions were better than expected and minimal overbreak was observed in the hanging-wall. Preparations are underway to bring the second stope online. The filing also disclosed that dewatering activities accelerated at Youanmi Main, with rehabilitation and stripping works underway on both the Main and Hill End access declines. A second borehole is scheduled to commence drilling from underground, with pump installation to follow.

Youanmi Processing Plant Construction Progress

Construction of the 1.0 million tonnes per annum Youanmi Processing Plant, being delivered by EPC contractor Interquip, continued to advance in October. Key milestones disclosed in the filing include the ball mill being delivered onsite, cabling and conveyor belt deliveries arriving, first structural steel delivered with screening plant construction commenced, and the power station engine hall slab concrete poured. The workshop and warehouse shed has been completed, enabling storage of key components. The tailings storage facility embankment is described as well advanced, with the outer wall nearing completion. All CIL tanks are reported as positioned, with internal works advancing.