FireFly Metals Ltd (ASX, TSX: FFM) has unveiled a new set of exceptional drilling results from its Green Bay Copper-Gold Project in Newfoundland and Labrador, Canada, demonstrating robust continuity within its high-grade core zone. These assays, featuring intersections such as 42.0m @ 6.1% copper equivalent (CuEq) and 9.8m @ 16.5% CuEq, are anticipated to significantly bolster the project’s early production profile and will be critical inputs for the impending economic studies.
Exceptional Assay Results Confirm High-Grade Continuity
The latest drilling campaign, primarily focused on infill drilling within the +800m-long high-grade core zone, has yielded impressive continuous thick intersections. Notably, hole MUG26-053 returned 42.0m @ 6.1% CuEq (4.7% Cu & 1.4g/t Au), which included a high-grade VMS zone of 9.8m @ 16.5% CuEq (12.7% Cu & 4.0g/t Au). Another significant result came from hole MUG26-054, reporting 51.5m @ 4.9% CuEq (4.0% Cu & 0.9g/t Au), with an upper zone grading 17.0m @ 9.1% CuEq (7.5% Cu & 1.7g/t Au).
Further demonstrating the project’s potential, hole MUG26-036 intersected 50.2m @ 4.0% CuEq (3.5% Cu & 0.4g/t Au), while MUG26-028 delivered 34.4m @ 5.0% CuEq (3.8% Cu & 1.2g/t Au), including an upper zone of 14.3m @ 7.6% CuEq (5.2% Cu & 2.5g/t Au). These results, according to FireFly, underscore the strong continuity and grade of the high-grade core zone, which remains open, with the deepest hole drilled to date returning 49.0m @ 6.1% CuEq, as announced on 16 October 2025.
Impact on Economic Studies and Resource Model
The strength and continuity of these new results are set to be incorporated into an updated resource model, which will underpin the economic studies for the upscaled restart of mining at Green Bay. FireFly has indicated that these studies, originally planned for an earlier completion, will now be finalized in July-August 2026 to fully integrate the latest data. The infill drilling results are particularly crucial as they will be reflected in the Measured & Indicated (M&I) Resource category, which is central to economic assessments.
FireFly Managing Director Steve Parsons commented on the significance, stating, “These are exceptional results with extremely high grades over substantial widths. They also demonstrate the strong continuity of this mineralisation. This is an an outstanding combination of grade and width. The continuing of this mineralisation is a very positive indicator for the upcoming economic studies, which will assess the potential development scenarios for Green Bay.” He added that these results would enable the company to “demonstrate the financial benefits of such a rich core of mineralisation.”
Broader Mineralization and Resource Overview
Beyond the high-grade core, the project continues to reveal robust mineralization across other zones. The upper copper-gold Volcanogenic Massive Sulphide (VMS) lenses have delivered spectacular intersections, including 20.7m @ 7.7% CuEq in hole MUG26-013 and 13.6m @ 6.8% CuEq in MUG26-029. Additionally, close-spaced drilling in the footwall stringer-style mineralisation has returned significant results, such as 35.7m @ 3.3% CuEq in hole MUG25-278.
The current Green Bay Mineral Resource stands at 50.4Mt @ 2.0% CuEq in the M&I category and a further 29.3Mt @ 2.5% CuEq in the Inferred category, as per an ASX announcement dated 18 November 2025. Specifically, the high-grade core zone contributes 8.8Mt @ 3.9% CuEq of M&I resource and an additional 10.9Mt @ 3.8% CuEq of Inferred resource, highlighting its economic importance.
Operational Momentum and Financial Position
FireFly is maintaining an aggressive operational tempo at Green Bay, with six rigs currently operating underground at the Ming Mine. Regional exploration efforts are also underway, including maiden drilling at the Tilt Cove project, as the company aims to expand its resource base. Financially, FireFly appears well-positioned to achieve its growth objectives, reporting approximately A$219.9 million in cash and liquid investments as of 31 March 2026.
The consistent delivery of high-grade, continuous mineralization results at Green Bay reinforces FireFly’s strategy to upgrade and grow its resource in parallel with its economic and technical studies. The integration of these latest assays into the updated resource model and subsequent economic studies is expected to provide a clearer pathway for the project’s development, potentially establishing Green Bay as a significant copper-gold producer with a strong early production profile.
