Mr. Scott Sheldon reports

FLOW METALS MODELS 3D SUBSURFACE OF PORPHYRY-EPITHERMAL TARGET AT SIXTYMILE VALLEY

Flow Metals Corp. has completed a 3-D geophysical data compilation and data reprocessing program at its flagship Sixtymile gold project in western Yukon. The program was carried out by in3D Geoscience Inc., under the direction of Todd Ballantyne, PGeo. The 3-D data compilation promotes the evaluation of the subsurface structures of the Sixtymile Valley copper-molybdenum porphyry and epithermal gold-silver targets.

Highlights:

• 3-D subsurface resistivity model: Twenty-seven point nine line kilometres of historical controlled-source audio frequency magnetotelluric data were reprocessed from the original 2-D inversions into a unified 3-D resistivity block model.
• 3-D mapping of structures and fluid pathways in 3-D: Connecting 2-D cross-sections into a continuous volume allows the team to trace fault geometry and correlate resistivity domains with historic drill intercepts.
• Major faults and alteration domains delineated: The 3-D model resolves the Sixtymile Fault zone, crosscutting structures and distinct resistivity domains. These coincide with hydrothermal alteration, brecciation, and anomalous copper-molybdenum and silver-gold intervals in historical drill core.
• Mineral system approach to focus exploration: Evaluating these 3-D domains within a mineral system framework allows the company to deprioritize areas that lack key subsurface features. Geophysical and drilling work can then focus on specific, testable porphyry and epithermal targets.

"While gold remains our primary focus at Sixtymile, the Sixtymile Valley option gives us an exciting opportunity to broaden into critical minerals," said Scott Sheldon, president and chief executive officer of Flow Metals. "Combining this new 3-D subsurface model with our recent surface discoveries and the encouraging historic copper-molybdenum drill results lets us look beneath the valley, connect the dots across the system and prioritize our next phase of exploration."

Expanding gold and critical mineral potential

The company optioned the Sixtymile Valley target area as part of its 2026 district consolidation (see news release dated Aug. 6, 2026), which added a critical mineral component to the project's primary gold focus. Historical drilling in the target area intersected porphyry-style alteration and brecciation with anomalous copper, molybdenum, silver and gold.

Surface mapping competed by the company in 2026 found pervasive clay alteration and vuggy residual quartz at Miller Creek. This indicates that the uppermost levels of a high-sulphidation epithermal system may be preserved. Taken together with the historic porphyry drill intercepts, these observations suggest the valley could host a pristine calc-alkaline porphyry-epithermal system. In systems of this type, alteration and fluid pathways typically generate sharp electrical resistivity contrasts between conductive, clay-altered fault zones, and resistive silica caps or intrusive stocks. The company initiated the 3-D CSAMT modelling program to map these subsurface features and test how they connect at depth.

3-D subsurface resistivity model of the Sixtymile Valley

CSAMT is an electromagnetic survey method that measures differences in electrical resistivity of subsurface rocks to depths of several hundred metres. In porphyry and epithermal systems, fluid-bearing faults and clay-sulphide alteration typically form low-resistivity (conductive) zones. Quartz-flooded breccias, silicified caps and intrusive stocks typically form high-resistivity bodies.

In 2011, the historical operator completed 27.9 line kilometres of CSAMT along 27 survey lines over the Sixtymile Valley target. Those data were evaluated primarily as isolated 2-D cross-sections. This year, Flow Metals engaged in3D Geoscience to regrid the 2-D inversions into one continuous 3-D block model to improve the visualization of how the structures and alteration zones connect between the sections.

The 3-D model shows a branching network of steeply dipping conductive structures alongside large high- and low-resistivity domains. Plotting the 2011 drill holes within the model, these domains and structural trends broadly correlate with intervals of hydrothermal alteration, brecciation and anomalous polymetallic mineralization. This gives the company a framework for tracing the system into undrilled areas.

Next steps

With the initial 3-D resistivity block model and domain clustering complete, the technical team is digitizing the primary fault architecture in 3-D space and cross-referencing the resistivity volumes against newly filtered 2010 airborne magnetic grids. The company will also drape its 2026 surface mapping over the block model to trace the newly identified epithermal and lithocap zones to depth while conducting a statistical analysis of historical drill logs and assay intervals against the geophysical clusters to establish quantitative vectors for future drill targeting.

Qualified person

The technical content of this news release has been reviewed and approved by Harley Slade, PGeo, a director of the company, who is a qualified person as defined by National Instrument 43-101 (Standards of Disclosure for Mineral Projects).

The historical CSAMT, airborne magnetic and drilling data referred to in this news release were produced by a previous operator. The qualified person has not independently verified these historical data. The company considers the historical data relevant as a guide to exploration. However, readers are cautioned that the historical results may not be reliable and are not necessarily indicative of mineralization on the property.

About Flow Metals Corp.

Flow Metals is a Canadian mineral exploration company focused on the discovery and advancement of district-scale gold and critical mineral projects. The company's flagship Sixtymile gold project in Yukon covers a significant portion of a historic placer gold district, where exploration is targeting the bedrock sources of gold alongside emerging epithermal gold-silver and copper-molybdenum porphyry opportunities. Flow also owns the New Brenda project in Southern British Columbia, a copper-molybdenum porphyry exploration project located within the Quesnel terrane.

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