• SLTIFR at 0.6 injuries per million hours worked
• Group underlying free cash flow of A$301 million and net mine cash of A$426 million
• Gold sold totalled 381koz at an AISC of A$2,709/oz (US$1,854/oz)

Northern Star Resources Ltd reported improved operational performance in the March 2026 quarter, with gold sold totalling 381koz at an all-in sustaining cost (AISC) of A$2,709/oz. The company's Serious Lost Time Injury Frequency Rate (SLTIFR) was 0.6 injuries per million hours worked, demonstrating its commitment to safety. Group underlying free cash flow was A$301 million, and net mine cash reached A$426 million. The Kalgoorlie production centre sold 210koz at an AISC of A$2,550/oz, with KCGM operations contributing 117koz at an AISC of A$2,485/oz. Mining volumes at KCGM are trending toward annual target rates, with accelerated mining in the high-grade Golden Pike North area to prioritise higher-margins and cash flow during current mill throughput constraints. The Yandal production centre sold 105koz at an AISC of A$3,347/oz, while Pogo sold 66koz at an AISC of US$1,529/oz. The KCGM Mill Expansion Project remains on track for commissioning in early FY27, with Stage I on schedule and Stage II consolidation of the Gidji facility expected by the end of the first half of FY27.For FY26, the company revised its Group production guidance to be above 1,500koz, with AISC guidance of A$2,600-2,800/oz. Growth capital expenditure is forecast to be in the range of A$2,315-2,425 million, including the KCGM Mill Expansion Project, KCGM Mill Operational Readiness, and the Hemi Development Project.

FY26 Group production guidance of above 1,500koz gold sold and AISC of A$2,600-2,800/oz. Total growth capital expenditure of A$2,315-2,425 million.

The KCGM Mill Expansion Project is on track for commissioning in early FY27, which will enable the consolidation of processing activities from the Gidji facility and support longer-term operating efficiency and cost-structure benefits.