What does the Green Bay study mean for FireFly Metals (ASX:FFM) as it heads towards a feasibility decision?

Sonal Goyal

10 November 2026 05:04 PM AEDT

What does the Green Bay study mean for FireFly Metals (ASX:FFM) as it heads towards a feasibility decision?

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Key Highlights

• The PEA, supported by an independent technical report prepared under Canada's NI 43-101 standard, considers two cases based solely on the Ming Mine resource.

• The 1.8 million tonnes per annum (Mtpa) base case showed an after-tax net present value, discounted at 7 per cent, of about A$2.2 billion and an after-tax internal rate of return of 41 per cent.

• The larger 4.6 Mtpa expansion case showed about A$3.0 billion and 39 per cent respectively.

• The study quantified payable metal for the base case at about 872,000 tonnes of copper, 757,000 ounces of gold and 3.96 million ounces of silver over a mine life of roughly 32 years.

What does FireFly Metals (ASX:FFM)' latest study mean for the company, and why are investors watching Green Bay? In short, a Preliminary Economic Assessment released on 25 August 2026 gave the first full economic outline of the Newfoundland copper-gold project, and the company is now working towards a definitive feasibility study, a maiden Ore Reserve and a final Investment decision, all targeted for 2027. It is a significant step, but still an early-stage study rather than a funded construction plan.

The central development: a first economic picture

FireFly Metals (ASX:FFM, also listed on the TSX) is developing the Green Bay Copper-Gold Project in Newfoundland and Labrador, Canada. The PEA, supported by an independent technical report prepared under Canada's NI 43-101 standard, considers two cases based solely on the Ming Mine resource.

The 1.8 million tonnes per annum (Mtpa) base case showed an after-tax net present value, discounted at 7 per cent, of about A$2.2 billion and an after-tax internal rate of return of 41 per cent. The larger 4.6 Mtpa expansion case showed about A$3.0 billion and 39 per cent respectively. These are the company's modelled outcomes, not reported earnings.

What the company does

FireFly is a pre-production explorer and developer. It has no operating mine and therefore no meaningful sales revenue. The Business creates value by growing and de-risking resources, then advancing them through studies, permitting and financing.

Green Bay's main metal is copper, with gold and silver as by-products. If built, the project would sell concentrate, so the Economics would be driven by copper first, then gold. The study quantified payable metal for the base case at about 872,000 tonnes of copper, 757,000 ounces of gold and 3.96 million ounces of silver over a mine life of roughly 32 years. For the expansion case, it estimated about 1.05 million tonnes of copper over about 22 years.

Initial capital, net of tax credits, was put at about A$516 million for the base case. The company reported a payback period of 1.9 years for that case, again on its own modelled assumptions.

Resources, drilling and permitting

The August 2026 resource estimate, announced alongside the PEA, comprises 60.2 million tonnes at 2.4 per cent copper equivalent in the Measured and Indicated categories, plus 23.5 million tonnes at 2.5 per cent in the Inferred category. Within that, a higher-grade core zone holds 18.1 million tonnes at 4.3 per cent copper equivalent in the Measured and Indicated categories. These are resources, not reserves, and no Ore Reserve has yet been declared.

According to the FY26 annual report, the company had drilled about 197,700 metres across 1,334 holes between October 2023 and 30 June 2026. In April 2026, the provincial government accepted water resources and environmental protection plans, which the company described as a key step towards early works.

Funding and recent corporate activity

On 25 August 2026 FireFly announced an Equity raising of about A$180 million before costs, and a further A$5 million was reported from a share purchase plan. The company's September quarter release, dated 28 October 2026, put cash and liquid investments at about A$349.7 million at 30 September 2026. That figure is unaudited.

Earlier in the year, FireFly sold its Ontario gold assets, Pickle Crow and Sioux Lookout, to Bellavista Resources (ASX:BVR). The sale completed on 29 April 2026 for 60 million Bellavista shares and 50 million performance rights, and the shares were distributed to eligible FireFly shareholders in May 2026.

The Annual Report also says FireFly was added to the S&P/ASX 200 in June 2026.

Sector conditions and competitive position

Copper is widely regarded as a key metal for electrification, power grids and data infrastructure, and few large new copper projects are in development in politically stable jurisdictions. That backdrop has helped attract investor attention to developers in North America, but it does not guarantee that any single project will be financed or built.

Green Bay's relative strengths, as presented by the company, are its grade, its by-product credits and its location in an established Mining province. The study estimated a C1 cash cost of US$2.05 per pound of copper equivalent for the base case, a figure that includes gold and silver credits and so is sensitive to those prices.

Risks and uncertainties

The company itself stresses that a PEA is preliminary and that there is no certainty the outcomes will be achieved. Several features of the study carry particular uncertainty.

First, the PEA may include Inferred resources, which have a lower level of geological confidence. Second, Capital and operating costs can change substantially between a PEA and a definitive study. Third, Commodity prices can move sharply against the study assumptions of US$5.00 per pound copper and US$3,500 per ounce gold. Fourth, project finance, construction permits and the timing of early works all remain to be completed.

Equity dilution is another consideration. The August 2026 raising has strengthened the balance sheet, but the construction cost will probably require further funding, whether through debt, partners or equity.

What to watch next

The company has outlined the following milestones: a definitive feasibility study on the 1.8 Mtpa case and a maiden Ore Reserve in the first quarter of 2027; a pre-feasibility study on the 4.6 Mtpa case; and a final investment decision in mid-2027. It is also pursuing construction permit applications, project financing, continued early works and further drilling, including regional exploration such as the Mount Joy discovery.

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