Aston Bay Holdings Ltd. has identified a series of unrecognized, near-surface copper targets across the southern trend of its Epworth project in Nunavut, Canada, following advanced 3D geophysical inversion modelling across a 126 square kilometre area.

The modelling integrates Magnetic Vector Inversion and resistivity inversion data from an 8,105 line-kilometre airborne electromagnetic survey completed across the Epworth claim block in 2024. The results have mapped a basin-scale plumbing system for copper mineralization, showing deep-seated structural breaks aligning directly with conductive anomalies that widen toward the surface. These targets sit directly on trend with showings discovered during the 2025 summer field program, including high-grade sampling at the Greenback showing.

To accommodate the prospective anomalies trending off the property, Aston Bay staked an additional 18.7 square kilometres of ground, bringing the Epworth property total to 1,040.7 square kilometres. Under an agreement entered into in April 2024, Aston Bay can acquire an undivided 80 percent interest in the property by spending $3 million in exploration expenditures over four years.

“It is very encouraging to see two independent geophysical inversions converge on the same overlapping signatures, giving us high confidence in a series of previously unrecognized, large near-surface targets across the southern portion of Epworth,” stated Thomas Ullrich, CEO of Aston Bay. “These results validate the basin-scale plumbing system we believe is responsible for the exceptional high-grade copper and silver mineralization already documented at surface, and point toward the kind of stratigraphically controlled, sediment-hosted system we have been targeting since acquiring the property. With ground geophysics, mapping and sampling planned for this fall to refine these targets, and camp and fuel logistics positioned over winter, we are well set up to move directly into drill testing in 2027. Epworth continues to demonstrate the scale and grade potential we look for, and this work meaningfully de-risks our path to the drill bit.”

Ground geophysical, structural, and geological mapping and sampling programs are scheduled across the project in September 2026 to refine the targets. Aston Bay has also initiated permit modification applications and pre-positioned camp supplies for the anticipated 2027 drill program, setting the stage for next-stage exploration.

Read the full announcement: Aston Bay Identifies New Near-Surface Copper Targets Through Integrated 3D Modelling at the Epworth Copper-Silver Project, Nunavut, Canada