Results such as 4.4% CuEq over 9.1m at the Project’s flagship Corner Bay deposit; These follow the recent high-grade results at the nearby Golden Eye prospect

HIGHLIGHTS:

• Latest infill results from Corner Bay demonstrate continuous high-grade mineralisation:
  • 9.1m @ 4.4% CuEq (4.1% Cu, 0.3g/t Au & 14.4g/t Ag) (CB-25-118)
    • Including 3.4m @ 7.6% CuEq (7.0% Cu, 0.4g/t Au & 24.9g/t Ag)
  • 5.8m @ 5.3% CuEq (4.4% Cu, 0.8g/t Au & 28.1g/t Ag) (CB-25-122)
  • 2.8m @ 5.0% CuEq (4.6% Cu, 0.4g/t Au & 14.6g/t Ag) (CB-25-119)
  • 2.8m @ 4.1% CuEq (3.8% Cu, 0.2g/t Au & 16.3g/t Ag) (CB-25-120)

• These results highlight the strong potential to grow the Indicated Resource as part of the upcoming Mineral Resource update on the Chibougamau Project, which is scheduled for completion in the September quarter
• The current Corner Bay Indicated Resource is 2.7Mt at 2.9% CuEq and the Inferred Resource is 5.9Mt at 3.6% CuEq¹
• Infill drilling is almost complete on the shallowest parts of the Corner Bay deposit; this area is expected to help underpin the early part of any production schedule at the Project
• The Corner Bay results follow the recently announced high-grade assays from the Golden Eye prospect (see ASX release dated 10 June 2025), where Cygnus expects to complete an initial resource to be included in the overall Project Mineral Resource update

• The current total Mineral Resource for the Project is comprised of Measured and Indicated Resources of 3.6Mt at 3% CuEq and Inferred Resources of 7.2Mt at 3.8% CuEq¹
• Early engineering studies and permitting are underway
• The Project has a significant head start as a copper-gold development opportunity with well-established infrastructure including a 900,000tpa processing facility

Cygnus Metals Limited (ASX: CY5) (TSX-V: CYG) (OTCQB: CYGGF) is pleased to announce infill results from Corner Bay as the Company continues to execute its resource growth and conversion strategy at the Chibougamau Copper-Gold Project in Quebec.

The recent results are from infill drilling on the upper main vein, which will likely be scheduled into the early part of the potential production profile of the Project. Recent results include significant intersections of:

• 9.1m @ 4.4% CuEq (4.1% Cu, 0.3g/t Au & 14.4g/t Ag) (CB-25-118);
  • Including 3.4m @ 7.6% CuEq (7.0% Cu, 0.4g/t Au & 24.9g/t Ag);
• 5.8m @ 5.3% CuEq (4.4% Cu, 0.8g/t Au & 28.1g/t Ag) (CB-25-122);
• 2.8m @ 5.0% CuEq (4.6% Cu, 0.4g/t Au & 14.6g/t Ag) (CB-25-119); and
• 2.8m @ 4.1% CuEq (3.8% Cu, 0.2g/t Au & 16.3g/t Ag) (CB-25-120).

These results will be incorporated in the upcoming Mineral Resource update as Cygnus seeks to convert Inferred Resources to Indicated Resources, with recent results reconciling well against the current block model. The Mineral Resource upgrade at Corner Bay is being completed in conjunction with new resource growth prospects such as Golden Eye. These are aimed at growing the current global resource, which stands at a Measured and Indicated Resource of 3.6Mt at 3% CuEq and Inferred Resources of 7.2Mt at 3.8% CuEq.¹ The global Mineral Resource update for the Project is expected in Q3 2025, targeting both resource growth and conversion.

With work on the resource well advanced, Cygnus is also progressing the Project along the pathway to development, in line with its value creation strategy. This work includes early geotechnical studies across potential development sites as well as advancing long-lead permitting items. This work aims to streamline and accelerate future study work.

The Chibougamau area has well-established infrastructure giving the Project a significant head start as a copper-gold development opportunity. This infrastructure includes a 900,000tpa processing facility, local mining town, sealed highway, airport, regional rail infrastructure and 25kV hydro power to the processing site. Significantly, the Chibougamau processing facility is the only base metal processing facility within a 250km radius which includes a number of other advanced copper and gold projects.

Figure 1: Drill core from CB-25-118 with 4.4% CuEq over 9.1m from 545m, including a high grade interval of 7.6% CuEq over 3.4m. Showing style and high-grade tenor of mineralisation at Corner Bay.

Ongoing Drilling

Cygnus is continuing its dual track strategy of resource growth and conversion. Work is in progress to generate additional drill targets surrounding the current high-grade copper-gold resource which can be targeted through low-risk brownfield exploration. Such work includes ongoing data compilation which is playing a significant role in unlocking this historic district.

Figure 2: Location of Corner Bay recent infill drill results. Corner Bay is the primary resource at the Chibougamau Project with an Indicated Mineral Resource of 2.7Mt at 2.9% CuEq and Inferred Mineral Resource of 5.9Mt at 3.6% CuEq.¹

About Cygnus Metals

Cygnus Metals Limited is a diversified critical minerals exploration and development company with projects in Quebec, Canada and Western Australia. The Company is dedicated to advancing its Chibougamau Copper-Gold Project in Quebec with an aggressive exploration program to drive resource growth and develop a hub-and-spoke operation model with its centralised processing facility. In addition, Cygnus has quality lithium assets with significant exploration upside in the world-class James Bay district in Quebec, and REE and base metal projects in Western Australia. The Cygnus team has a proven track record of turning exploration success into production enterprises and creating shareholder value.