- **IsoEnergy Ltd.** and Purepoint Uranium Group Inc. announced partial assay results from the summer drill program at their 50/50 joint venture Dorado Project.  **[1997377_0001279569-25-001013_ex991.htm:1]** 
- Drill hole PG25-07A at the Nova discovery zone returned **0.4 metres at 8.1% U₃O₈** within **2.1 metres grading 1.6% U₃O₈**, along with an additional **4.9 metres at 0.52% U₃O₈**.  **[1997377_0001279569-25-001013_ex991.htm:1]** 
- The summer drill program completed **5,030 metres across 11 holes** but was curtailed by wildfires; full assay results are still pending.  **[1997377_0001279569-25-001013_ex991.htm:1]** 
- Follow-up drilling programs are scheduled for early **2026** to further explore the Nova discovery and other priority targets.  **[1997377_0001279569-25-001013_ex991.htm:1]**

IsoEnergy and Purepoint Report High-Grade Uranium Assays at Dorado Project

- IsoEnergy Ltd. and Purepoint Uranium Group Inc. announced partial assay results from their Dorado Project, with drill hole PG25-07A intersecting **2.1 metres grading 1.6% U₃O₈**, including **0.4 metres at 8.1% U₃O₈**, at the Nova discovery zone.  **[1997377_20250918VA76728:0]** 
- These results represent the **most significant assay intervals reported to date** from the Nova discovery zone.  **[1997377_20250918VA76728:0]** 
- The summer drill program completed **5,030 metres across 11 holes** but was curtailed due to wildfires, leading to the deferral of drilling at the Celeste project.  **[1997377_20250918VA76728:0]** 
- Follow-up programs for the Dorado Project are scheduled for **early 2026**.  **[1997377_20250918VA76728:0]**

IsoEnergy and Purepoint announce high-grade uranium assay results from Dorado Project

- **IsoEnergy Ltd.** has launched its **2025 U.S. exploration program** in southeast Utah, aimed at advancing its uranium projects.  **[1997377_20250917VA75600:0]** 
- The program will commence with **ten surface rotary holes with core tails, totaling 15,000 feet**, on the **Flatiron claims** in the Henry Mountains uranium district.  **[1997377_20250917VA75600:0]** 
- The Flatiron project, encompassing **8,800 total acres**, is strategically located in a historically productive district that has yielded approximately **1.4 million lbs of U3O8** to date.  **[1997377_20250917VA75600:0]** **[1997377_20250917VA75600:1]** 
- This initial drilling at Flatiron is designed to follow up on historical exploration conducted by Plateau Resources in the early 1980s.  **[1997377_20250917VA75600:0]** **[1997377_20250917VA75600:1]** 
- IsoEnergy will also continue fieldwork at its Daneros and Sage Plain projects and aims to play a meaningful role as a domestic uranium supplier, with past-producing mines in Utah on standby for rapid restart.  **[1997377_20250917VA75600:0]** **[1997377_20250917VA75600:1]** **[1997377_20250917VA75600:2]**

IsoEnergy (ISOU)