Highlights

  • The August 2026 PEA for Green Bay's 1.8 Mtpa base case shows an after-tax NPV (7%) of A$2.2 billion, a 32-year mine life and initial capital of A$516 million net of available Canadian tax credits.
  • The Ming Mine resource grew to 60.2 million tonnes at 2.4% copper equivalent in Measured and Indicated categories, with intercepts of 65.3 metres at 4.3% and 42.0 metres at 6.1% CuEq.
  • A A$180 million equity raise via a dual ASX and TSX offering left the company with A$337.1 million in cash and approximately 15.5 quarters of funding runway.
  • A volcanogenic massive sulphide discovery named Mount Joy was announced on 27 October 2026, approximately 35 kilometres east of the Ming Mine and near the care-and-maintenance Nugget Pond mill.

A compelling economic study, a substantial capital raise and a new discovery — FireFly Metals (ASX:FFM) had one of the more eventful September quarters among ASX-listed copper developers. The Green Bay copper-gold project in Newfoundland, Canada, moved from exploration to economic modelling with a preliminary economic assessment published in August 2026 showing an after-tax NPV of A$2.2 billion for the base case. That study was followed by a A$180 million equity raising that brought the cash balance to A$337 million and positioned the company to fund a feasibility study and early works without an immediate need for external financing.

PEA Results

Published on 25 August 2026, the PEA compares two cases based solely on the Ming Mine resource. The 1.8 million tonne per annum base case shows an after-tax NPV at a 7% discount rate of A$2.2 billion, a mine life of approximately 32 years, initial capital of A$516 million net of approximately A$55 million in refundable Canadian tax credits, and project payback of 1.9 years from first production. A 4.6 Mtpa upscale case shows an after-tax NPV of A$3.0 billion, a mine life of approximately 22 years, and expansion capital of A$484 million relying on a large-diameter haulage shaft not yet built. The company also provided spot-price NPV sensitivities of A$3.5 billion and A$5.0 billion for the two cases respectively.

FireFly notes that a PEA is preliminary, no ore reserve has been declared, and there is no certainty the economic assumptions will be achieved in practice. Tax credit eligibility depends on final design confirmation. Both cases exclude the Little Deer deposit and regional exploration targets entirely. The project has been released from further environmental assessment, enabling early works. Construction permits are still to be applied for. Key milestones include a definitive feasibility study on the 1.8 Mtpa case and a maiden ore reserve in Q1 2027, with a final investment decision targeted for mid-2027, subject to the feasibility study outcome and financing arrangements.

Resource Growth, Capital Raise and Mount Joy

The August 2026 resource update reports 60.2 million tonnes at 2.4% copper equivalent Measured and Indicated and 23.5 million tonnes at 2.5% CuEq Inferred for the Ming Mine, with Measured and Indicated rising by 9.8 million tonnes versus the November 2025 estimate. Six underground rigs and three surface rigs are drilling. Notable intercepts include 65.3 metres at 4.3% CuEq and 42.0 metres at 6.1% CuEq. On 27 October 2026, the Mount Joy VMS discovery was announced approximately 35 kilometres east of Ming near the Nugget Pond mill, which is on care and maintenance. Exploration results do not constitute a resource.

FireFly raised approximately A$180 million gross in September 2026 through 101.1 million shares at A$1.78 split between an ASX placement and a TSX bought deal, with a share purchase plan adding A$4.975 million. Closing cash at 30 September was A$337.1 million, against an operating outflow of A$2.6 million and an investing outflow of A$20.6 million for the quarter. Approximately 15.5 quarters of funding runway supports the feasibility study, early works and ongoing resource drilling. Project financing discussions including debt and offtake are continuing; no binding agreement has been announced.