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GOLDPRODUCTION UPDATEPROJECT ECONOMICS

KCGM Production Update: A$1.75B Capex

ByMining Stocks Research
Sep 21, 2026
Source:Northern Star Resources
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Northern Star Resources's KCGM in Western Australia has a production guidance outlining initial capital of A$1.75B.

Northern Star Resources's KCGM has reported production guidance results for the gold project in Western Australia. It reflects Northern Star Resources's (NST.AX) latest disclosed economics for the asset.

Economics. Initial capital expenditure is estimated at A$1.75B.

Production and mine plan. The project envisions an open-pit & underground operation. Average annual production is approximately 550 koz Au (FY27 guidance 550-650koz). Average head grade is 1.4 g/t Au (reserves); 1.3 g/t Au (resources).

Resources and ownership. The company holds a 100% interest in the project.

These figures are extracted from Northern Star Resources's technical disclosures and reflect the most recent Production Update on file. Compare this project against other developers and producers in our project economics database, and always verify the numbers against the original technical report before making any investment decision.

Reserves & Resources

Mineral Reserves (P&P)
CategoryTonnageGradeContained
Proven & Probable182 Mt1.4 g/t Au8 Moz Au
Mineral Resources (M&I&I)
CategoryTonnageGradeContained
Total429 Mt1.3 g/t Au18 Moz Au
Mining Stocks Research

Our Analysis

Initial capex
A$1.75B

costlier than 96% of 151 projects we track

Spot gold today
$4,386.70/oz

Among the 151 gold projects we track, this one sits in the top 4% by initial capital cost, and that is the most useful thing to say about it. A US$1.75B build against a US$20.57B market cap is a funding problem the company can absorb without the equity dilution that sinks smaller developers. It is also one of seven projects we track for this diversified large-cap, so no single asset carries the balance sheet.

The numbers here are operating-mine figures, not a forward study, which changes how much weight they deserve. There is no scoping-level optimism to discount and no feasibility-stage assumption set to interrogate: the mine is running, and the figures reflect what it is actually doing. That earns more confidence than a PEA or even a feasibility study, but it also means the interesting question is no longer whether the project works. It is what the operation does from here.

Western Australia is about as clean a jurisdiction as gold gets, and the asset sits inside a portfolio large enough that it does not need to be a company-maker. The live spot price of $4,386.70/oz is the figure that matters for any margin read, and it is the one variable nobody controls. The question that decides whether this project keeps earning its place in that portfolio is whether the operating cost base holds at that price through the next cycle, not whether the capex gets funded.

Our take, benchmarked against the project economics in the Mining Stocks database. Figures are estimates drawn from company technical reports — not investment advice; always verify against the source filing.

View the source filing from
Northern Star Resources
View Source Filing (PDF) →
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