Northern Star Resources has navigated a challenging December quarter but remains well-positioned for a strong second half of the 2025-26 financial year (FY26).
Gold sales for the quarter were 348,000 ounces, bringing first half (1H) FY26 sales to 729,000 ounces.
“December quarter gold sales were impacted by a number of isolated negative events coinciding at the company’s operations late in the quarter,” Northern Star Resources said.
“Given the softer operational performance, the company has revised its annual production guidance to 1600-1700 thousand ounces (koz), from 1700-1850koz.”
The softer performance followed previously disclosed events at Jundee and South Kalgoorlie and unplanned maintenance across the business.
At Kalgoorlie, December sales reached 203,000 ounces. Kalgoorlie Consolidated Gold Mines (KCGM) delivered 110,000 ounces despite a four-week slowdown from a primary crusher failure.
“While the processing plant will return to normal operations in early January, throughput is expected to remain variable during the second half as the company transitions from the existing plant to the new expanded mill,” Northern Star said.
The new mill remains on track for commissioning in early FY27, while high-grade Golden Pike North ore has been stockpiled, ready for processing.
Yandal Production Centre sales were 91,000 ounces, with recovery works at Jundee and lower mined grades at Thunderbox gradually being addressed. At Pogo, underground mining and milling operated at an annualised 1.4 million tonnes per annum (Mtpa) despite some dilution impacts.
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