Northern Star Resources Balances Setbacks With Project Push

Northern Star Resources Ltd ((AU:NST)) has held its Q2 earnings call. Read on for the main highlights of the call.

Northern Star Resources’ latest earnings call painted a cautious but resilient picture for investors. Management acknowledged a tough second quarter marked by equipment failures, grade issues and higher near-term capex, yet stressed these were largely one-off setbacks. A strong balance sheet, solid cash generation and record mining at KCGM underpinned confidence in a stronger second half.

Revised FY’26 Guidance Balances Setbacks and Recovery

Northern Star cut FY’26 gold sold guidance to 1.6–1.7 million ounces and narrowed all-in sustaining cost expectations to $2,600–$2,800/oz. Management said the downgrade fully factors in known disruptions and cost pressures, while the second half is expected to benefit from better grades, higher throughput and smoother operations across key assets.

Robust Balance Sheet and Cash Engine Support Strategy

The company reported cash and bullion of $1.18 billion and a net cash position of $293 million at 31 December, giving it ample flexibility amid capex uplift. Estimated first-half cash earnings of $1.06–$1.11 billion and operating cash flow of $738 million underpin its dividend policy of returning 20%–30% of cash earnings to shareholders.

KCGM Delivers Record Mining Despite Mill Issues

At KCGM, Northern Star mined a record 207,000 ounces in the quarter, a new high under its ownership, with open-pit material movement reaching 22 million tonnes in Q2 and 45 million tonnes in H1. The site’s execution in the pit contrasts with mill bottlenecks, and management highlighted this mining strength as a key driver of future production once processing normalizes.

Processing Availability and Recovery Trend Higher

Processing plant availability averaged 92% year-to-date, while metallurgical recovery hit 86% in the quarter, five percentage points above expectations. This stronger recovery profile improves metal conversion from existing ore sources and is expected to increasingly support production and margins as ore feed stabilizes through the year.

Underground Development Builds Ore Inventory Buffer

KCGM’s underground operations developed 8.7 km and mined 819,000 tonnes of ore in the quarter, taking first-half underground ore mined to 1.55 million tonnes, above the run-rate for the 3 Mtpa target. The site ended the quarter with 1.3 million tonnes at 1.9 g/t and roughly 81,000 ounces of high-grade ore on the ROM pad, providing a strategic buffer for mill feed.

Project Pipeline Progress and Capital Allocation Discipline

Operational growth capital guidance was held at $1.14–$1.2 billion, signaling commitment to the long-term plan despite short-term noise. Key FY’26 spends include KCGM mill expansion at $640–$660 million, KCGM tailings at $240–$260 million with a lighter tailings bill in FY’27, and $165–$175 million at Hemi focused on optimization and design.

Hedge Book Unwinding to Lift Gold Price Leverage

Northern Star delivered 158,000 ounces into hedges during the quarter, reducing its hedge commitments to 1.1 million ounces at just over $3,300/oz. As these contracts run off and production grows, a larger share of output will be exposed to spot gold prices, potentially enhancing earnings sensitivity in a supportive gold market.

Inventory and Tax Relief Ease Near-Term Cash Drag

Non-cash inventory charges swung to a $93 million credit in the December quarter due to lower grade stockpile build and higher ore stocks at KCGM and Thunderbox. The company also cut its second-half group cash tax forecast to $230–$270 million, easing some pressure on near-term free cash flow despite higher capex.

Soft Q2 Output and Elevated Costs Weigh on Sentiment

Gold sold in the December quarter came in at 348,000 ounces at an all-in sustaining cost of AUD 2,937/oz, reflecting a softer operating performance. This combination of lower volume and higher unit costs was a key driver of the reduced FY’26 production guidance and raised investor concerns over execution risk.

Crusher Failure at KCGM Hits Mill Performance

KCGM’s mill throughput and run time were significantly impacted by a primary crusher failure in December, curbing Q2 output and sales. While repairs have allowed crushing rates to rebound strongly post early January, the incident was cited as one of the main contributors to the guidance downgrade and highlighted asset reliability risk.

Kalgoorlie Suspension Adds to Production Friction

A partial suspension of mining at Kalgoorlie to install a new escape way lasted nine weeks and dragged on quarterly production, although operations returned to normal from mid-December. Management framed this as a safety-driven decision that temporarily hurt volume but should reduce operational risk over the longer term.

Jundee Crushing Circuit Disruption Extends Longer Than Planned

At Jundee, a localized structural failure in the crushing circuit forced excavation, rebuild and reburial of the Coarse Ore Stockpile Tunnel, disturbing ore feed. Restoration work has taken longer than expected, with tunnel completion targeted for mid-February, prolonging the timing mismatch between mining and processing.

Thunderbox Throughput and Grade Underperformance Bite

Thunderbox faced reduced throughput due to tank problems that hit recovery by around 5%, compounding the impact of weaker-than-expected grades from the Aurelia resource. The company cut the Aurelia fleet from 17 to 11 trucks and reset expectations to a 21-month mine life producing about 215,000 ounces at 1.4 g/t as it adjusts mining practices.

Head Grade Slippage and Volume Loss Add to Q2 Pressure

Lower gold sales were also driven by head grade declines of roughly 0.5–1 g/t, attributed to stockpile dilution and ore loss, along with around 30,000 tonnes less ore mined due to East Deeps constraints. The quarter was further affected by roughly three lost operating days in December caused by extreme cold weather conditions.

Capex Uplift to Protect KCGM Schedule Raises Questions

Northern Star disclosed an approximate $110 million capex uplift this year for the KCGM mill expansion, driven mainly by higher labour deployment, ramping headcount from around 350 over Christmas to more than 800 at peak. While the spend aims to safeguard early FY’27 commissioning, it sparked investor debate over whether productivity is keeping pace with the accelerated schedule.

Transparency and Disclosure Timing Under Investor Scrutiny

Analysts pressed management on the timing and depth of market disclosures, particularly around the KCGM crusher failure and the frequency of site data reporting to head office. The company pointed to its responses to the exchange and promised more detailed correspondence, but the exchange highlights investor sensitivity to communication and governance practices.

Forward Guidance Hinges on Recovery and Project Delivery

Looking ahead, Northern Star’s outlook rests on achieving 1.6–1.7 million ounces of gold sold at AISC of $2,600–$2,800/oz while executing $1.14–$1.20 billion of growth capex across KCGM, tailings and Hemi. Record mining at KCGM, a growing high-grade ore stockpile, strong plant availability and rising exposure to spot gold are expected to underpin a stronger second half if operational issues are contained.

Northern Star’s earnings call ultimately blended near-term operational disappointment with long-term promise built on a deep project pipeline and financial strength. Investors will be watching closely to see if management can convert record mining performance and heavy capex into higher-margin ounces, while tightening execution and improving disclosure to rebuild market confidence.