Northern Star Resources (ASX:NST) has updated its FY26 all-in sustaining cost guidance after revising its production outlook earlier this month.
On Jan. 2, the company lowered its FY26 group production guidance to 1,600–1,700koz, down from 1,700–1,850koz, citing lower gold sales across its three production centres in the December 2025 quarter.
The company had previously noted that this shortfall would affect annual cost guidance, and it now reports a more certain assessment of the impact.
Northern Star has revised its FY26 AISC guidance to $2,600–2,800 per ounce, up from $2,300–2,700 per ounce, primarily due to lower gold sales and higher royalties resulting from elevated gold prices—adding roughly $40/oz to the initial forecast.
FY26 sustaining capital expenditure guidance remains at approximately $750 million, equating to around $450/oz compared with the prior estimate of $420/oz.