FireFly Metals files Green Bay technical report with project NPV unchanged

Mining Written by: Ephrem Joseph 20:40 Tue 22 Sep 2026 --> Proactive has a commercial relationship with FireFly Metals Ltd. This article was produced independently under Proactive's Editorial Standards Policy . Disclaimer No investment advice About this content Editorial Standards & Policies Share article About this content × About Ephrem Joseph Ephrem began his journalistic journey at Proactive in June 2021. With a strong academic background in Information Technology, his expertise particularly lies in the field of Cyber Security, Management Information Systems and Computer Forensics. Before joining Proactive, Ephrem worked as a researcher and lecturer at a number of leading universities, including the University of Portsmouth's Institute of Criminal Justice Studies, the University of Winchester’s Institute of Policing, and Jain... Read more About the publisher Proactive financial news and online broadcast teams provide fast, accessible, informative and actionable business and finance news content to a global investment audience. All our content is produced independently by our experienced and qualified teams of news journalists. Proactive news team spans the world’s key finance and investing hubs with bureaus and studios in London, New York, Toronto, Vancouver, Sydney and Perth. We are experts in medium and small-cap markets, we also keep our community up to date with blue-chip companies, commodities and broader investment stories. This is content that excites and engages motivated private investors. The team delivers news and unique insights across the market including but not confined to: biotech and pharma, mining and natural resources, battery metals, oil and gas, crypto and emerging digital and EV technologies. Use of technology Proactive has always been a forward looking and enthusiastic technology adopter. Our human content creators are equipped with many decades of valuable expertise and experience. The team also has access to and use technologies to assist and enhance workflows. Proactive will on occasion use automation and software tools, including generative AI. Nevertheless, all content published by Proactive is edited and authored by humans, in line with best practice in regard to content production and search engine optimisation. FireFly Metals Ltd ( ASX:FFM TSX:FFM OTC:FFMFF ) View Price & Profile FireFly Metals files Green Bay technical report with project NPV unchanged Published: 20:40 22 Sep 2026 EDT FireFly Metals Ltd (ASX:FFM, TSX:FFM, OTC:FFMFF) has released the independent technical report supporting the Preliminary Economic Assessment (PEA) and updated Mineral Resource Estimate for its Green Bay Copper-Gold Project in Newfoundland, Canada. The technical report contains immaterial changes to capital expenditure assumptions for the expansion case, but these do not affect the overall calculation of net present value for the Green Bay project. Green Bay resource base Green Bay comprises the Ming Deposit and Little Deer Deposit and is being advanced towards potential development as a high-grade copper-gold operation. The combined project hosts 60.2 million tonnes of Measured and Indicated Resources at 2.43% copper equivalent, containing 1.464 million tonnes of copper equivalent metal. A further 23.5 million tonnes at 2.51% copper equivalent sits in the Inferred category, containing 592,000 tonnes of copper equivalent metal. The resource table accompanying the report shows the combined Green Bay estimate includes 1.155 million tonnes of contained copper, 908,000 ounces of gold and 8.17 million ounces of silver in the Measured and Indicated categories. Inferred resources contain a further 454,000 tonnes of copper, 414,000 ounces of gold and 3.95 million ounces of silver. Development pathway The PEA outlines the potential for a high-grade, low-cost and long-life operation with a pathway towards production of around 100,000 tonnes of copper per year. FireFly has confirmed that it is not aware of any new information or data that materially affects the Mineral Resource Estimates previously reported, with the underlying assumptions and technical parameters remaining materially unchanged. Continue reading