Stallion Uranium completes survey at SWA JV project

Executive Summary

• Stallion Uranium Corp. has completed a ground gravity extension survey over the Coyote corridor within its Southwestern Athabasca basin joint venture project.
• Preliminary data reveals a significant gravity low anomaly that closely resembles the geophysical signatures of NexGen Energy's Arrow deposit and other major Athabasca basin discoveries.
• The company is currently processing and modeling the data to determine the depth and shape of the anomaly, with plans to commence an eastern grid survey to further assess continuity before finalizing drill targeting.

Key Details

• Survey Completion: The gravity survey extension was conducted by MWH Geo-Surveys (Canada) Ltd. and concluded on February 10, 2026.
• Survey Scope: The extension increased coverage across the Coyote structural corridor, bringing the total combined original and extended grid to encompass 2,097 hectares with 2,226 gravity stations.
• Key Findings:
  • Identification of a substantial gravity low anomaly, a hallmark feature associated with large-scale uranium deposits.
  • Structural and geophysical features align with those of the Arrow deposit and PCE discovery, reinforcing potential for Tier 1 uranium mineralization.
  • The anomaly is located in a structurally complex corridor characterized by intersecting conductors and breaks, which are prime settings for uranium deposition.
• Technical Methodology:
  • Used a customized L&R digital, electronic feedback gravity meter with proprietary controller software.
  • GControl software recorded gravity samples at one-second intervals to reduce high-frequency noise.
  • Real-time, location-specific tidal corrections were calculated during data collection.
  • Mean data accuracy achieved was 0.02 mgals.
• Next Steps:
  • Data is currently undergoing processing, quality control, and preliminary modeling.
  • Continuing 3-D inversion to identify the depth and shape of the gravity anomaly.
  • A potential eastern grid is about to commence to build a comprehensive geophysical dataset across the broader Coyote trend.
  • Results will be provided once interpretation is complete.

Notable Quotes

• "The completion of this gravity extension is an important step in systematically advancing the Coyote target... Expanding the grid ensures we fully evaluate gravity responses identified at the edges of the initial survey and maintain a disciplined, data-driven approach to exploration." — Matthew Schwab, CEO
• "This extension allows us to properly assess the continuity of gravity features along the structural corridor before finalizing drill targeting. With data processing under way and a potential eastern grid about to commence, we continue to build a comprehensive geophysical data set across the broader Coyote trend." — Darren Slugoski, VP of Exploration