Atha Energy Closes Over-Subscribed Bought Deal - Makes Third New Discovery of 2025 Exploration Program at RIB West and Continues to Expand Mineralization at RIB East

Core Insights - ATHA has successfully closed a previously announced CAD $11.5 million over-subscribed bought deal [1] - The first two drill holes at the RIB West Discovery have intersected uranium mineralization over a strike length of approximately 340 meters [1] - This marks the third new discovery of uranium mineralization during the 2025 Angilak Exploration Program within the Angikuni Basin [1] - The RIB East Discovery is defined by eight mineralized drill holes, indicating shallow uranium mineralization across 7 million acres [1] - ATHA holds a 10% carried interest in key exploration projects in the Athabasca Basin operated by NexGen Energy Ltd [1]