Firefly Metals boosts Green Bay resource 51%

Firefly Metals reported a 51% increase to the Green Bay mineral resource, now just under 80 million tonnes at 2.20% copper-equivalent (~1.7Mt CuEq), with the company also citing roughly 1.4Mt of copper and 1.1Moz of gold; about 50Mt is in the measured and indicated category and nearly 30Mt remains inferred. The inferred inventory contains a 19.9Mt high‑grade core at ~4% CuEq that the company is prioritizing for conversion to M&I to underpin engineering studies scheduled for April–May 2026, while eight drill rigs continue on-site and regional gold/silver targets are being tested. Copper remains the dominant metal, gold has increased as a by‑product credit, silver is steady, and management frames the upgrade and further conversion of high‑grade material as the key near‑term value drivers for the project’s economics and development potential.

Analysis

Firefly Metals reported a 51% increase to the Green Bay mineral resource, taking the MRE to just under 80.0 million tonnes at 2.20% copper-equivalent (≈1.7Mt CuEq) and citing approximately 1.4Mt of contained copper and 1.1Moz of gold. The update places ~50.0Mt in measured and indicated categories and nearly 30.0Mt inferred, of which a 19.9Mt high-grade core at ~4% CuEq remains largely inferred and is the primary focus for conversion.

The upgrade follows 12 months of drilling across Canadian and New Zealand operations and the company currently has eight rigs on site targeting conversion of inferred material into M&I to support engineering studies planned for April–May 2026. Management emphasizes converting the high-grade core ahead of study work and is also testing regional gold and silver targets, with early results described as encouraging.

The resource remains copper-dominant with an increased gold by‑product credit, silver broadly unchanged and negligible zinc, indicating project economics will hinge on copper with supportive gold credits. Market tone is moderately positive; near-term catalysts are drill conversion rates, assay confirmations and the April–May 2026 engineering study, while failure to convert inferred tonnage or slipped timelines represent the key execution risks.

Key Decisions for Investors

• Monitor assay results and the conversion rate of the 19.9Mt high-grade inferred core closely and consider increasing exposure only if a clear tranche of that material is upgraded to M&I ahead of the April–May 2026 engineering study
• It may be prudent to wait for the outcomes of the current eight‑rig program and the formal engineering study before committing significant capital, given nearly 30Mt remains inferred and conversion is binary for project valuation
• Manage position sizing and set explicit catalysts to watch — drill conversion percentages, changes to metal mix (gold by-product contribution), study timing and any indications of operational or permitting delays — and consider staged purchases or hedging around those milestones