• Substantial increase in Mineral Resource to 50.4Mt @ 2.0% Copper Equivalent (CuEq) in Measured & Indicated categories
• Delineation of high-grade core of 8.8Mt @ 3.9% CuEq in Measured & Indicated and 10.9Mt @ 3.8% CuEq in Inferred
• Preliminary Economic Assessment on track for completion in H1 2026, Feasibility Study expected by end of 2026

FireFly Metals Ltd has reported a substantial increase in the Mineral Resource Estimate for its Green Bay Copper-Gold Project in Newfoundland, Canada. The updated Mineral Resource now stands at 50.4Mt @ 2.0% Copper Equivalent (CuEq) in the Measured & Indicated categories, containing 863kt copper and 546koz gold, plus 29.3Mt @ 2.5% CuEq in the Inferred category, containing 566kt copper and 563koz gold. This represents a 51% increase in CuEq metal from the previous Mineral Resource Estimate. Importantly, the proportion of higher-confidence Measured & Indicated Mineral Resources has increased by 121%, now making up two-thirds of the Ming Deposit Mineral Resource, providing a strong foundation for economic studies. Drilling has also delineated a high-grade core of 8.8Mt @ 3.9% CuEq in Measured & Indicated and 10.9Mt @ 3.8% CuEq in Inferred, enhancing development options. The company is well-funded, with ~A$250.9 million in cash and liquid investments, to execute an aggressive multi-rig drilling program, progress mining studies, and advance development activities. A Preliminary Economic Assessment is on track for completion in the first half of 2026, with a Feasibility Study expected by the end of the 2026 calendar year.

FireFly is well-funded, with ~A$250.9 million in cash and liquid investments as of 31 December 2025, to execute an aggressive multi-rig drilling program, progress mining studies, and advance development activities.

FireFly is focused on upgrading the Mineral Resource from Inferred to Measured and Indicated categories, growing the Mineral Resource through down-plunge drilling, and making new discoveries through both underground and surface regional exploration. The company is also working to complete the Preliminary Economic Assessment in H1 2026 and advance permitting, engineering, and early works to support future development scenarios.