Cosa Resources Corp. announced its summer exploration plans for its portfolio of Athabasca Basin uranium projects. Highlights: Diamond drilling at Ursa to follow up positive winter drilling results and test second high priority target area Ambient Noise Tomography (ANT) surveys to prioritize strike at Ursa and follow-up airborne survey results at Orion Airborne Electromagnetic (EM) and Gravity surveying at Aurora and Orbit to advance these shallow, prospective projects toward drill readiness for 2025 Ambient Noise Tomography (ANT) surveying is planned at Ursa and Orion beginning in May.

Cosa expects ANT to prove a rapid, low-cost, low-impact method to evaluate broad areas for prospective structures and alteration zones. Using data collected from a grid of compact, standalone sensors to measure naturally occurring seismic activity, ANT produces a three-dimensional model of subsurface seismic wave velocity. As the Athabasca sandstone is relatively homogenous and seismic wave velocity varies with changes in the host rock, velocity variations can be attributed to post- Athabasca faulting and/or alteration zones characteristic of the region's high-grade uranium deposits.

Although ANT is relatively new to the Athabasca Basin, recent exploration drilling in the region targeting ANT anomalies has successfully intersected zones of hydrothermal alteration at depth. At Ursa, ANT will be deployed over the 27-kilometres of conductive strike length hosting the alteration and structure intersected by UR24-03 at Kodiak, the Kodiak North, Smokey, and Panda West target areas, and all three weakly mineralized historical drill holes within the Project. Cosa anticipates preliminary ANT results will influence Ursa summer drilling planned to begin in August.

At Orion, ANT will follow up a prominent zone of anomalous sandstone conductivity identified by Cosa's 2023 MobileMT survey. The 4-kilometre-long, 1.4-kilometre-wide anomaly is coincident with flexures in basement conductive trends. Cosa will use ANT to locate seismic velocity anomalies coincident with the conductivity features and to optimize the locations of ground EM surveying used to generate targets for diamond drilling.

Aurora and Orbit Airborne Surveys Cosa will complete comprehensive airborne electromagnetic (EM) and gravity surveys to advance its Aurora and Orbit properties toward drill readiness for 2025. EM surveying will be completed by Geotech Ltd.'s helicopter borne VTEMTM Plus system with the objective of identifying basement- hosted conductivity anomalies consistent with prospective graphitic structures and/or large zones of hydrothermal alteration. Gravity surveying will be completed by Xcalibur Multiphysics's Falcon Airborne Gravity Gradiometer system (AGG) with the objective of identifying gravity anomalies consistent with large zones of hydrothermal alteration and to improve the understanding of basement geology.

Top priority drill targets would be gravity low anomalies coincident with basement-hosted conductive features. Airborne surveys commenced in early May. Ursa Diamond Drilling Planning is ongoing for summer diamond drilling at Ursa.

Drilling is expected to include following-up the broad zone of hydrothermal alteration and post Athabasca structure intersected well above the unconformity by drill hole UR24-03 as well as initial drill testing of a second target area. It is anticipated that ANT survey results will be used to influence drill strategy and targeting.