NST Analysis: Northern Star Resources September Quarter 2025 Results

Event: Northern Star Resources September Quarter 2025 Results | Date: 2025-10-23 | Source: Northern Star Resources Investor Relations

September Quarter Production Falls Short with Operational Disruptions

Northern Star Resources released its September 2025 quarterly results on 23 October 2025, reporting gold sales of 381,000 ounces at an all-in sustaining cost (AISC) of A$2,522 per ounce. This represents a 5% decline in sales from the prior quarter, with production impacted by localised issues including a crusher failure at Jundee and a wall slip at South Kalgoorlie, resulting in a 20,000-ounce deferral to the December quarter. The company maintained its FY26 guidance of 1,700,000-1,850,000 ounces at A$2,300-2,700 per ounce AISC, noting that grades and development rates are set to improve in the second half. Capital expenditure guidance remains at A$2.1 billion, with KCGM expansion 85% complete and on track for early FY27 commissioning. No changes were made to full-year targets, though management highlighted ongoing 5% cost inflation pressures. See the full announcement here.