Andrew Wong

Brian MacArthur

Katie Lachapelle

Craig Hutchison

Ralph Profiti

George Ross

Alexander Terentiew

Ben Finegold

Gordon Lawson

Graham Yoshio Tanaka

Julio Mondragon

Regan Burrows

Roland Vetter

- **NexGen Energy Ltd.** announced an upsized **AUD $600 million** equity offering in Australia, involving **45,801,527** common shares at a price of **A$13.10** per share.  **[1698535_0001062993-25-015889_exhibit99-1.htm:0]** 
- Concurrently, the company launched a North American bought deal equity offering for approximately **C$400 million**, selling **33,112,583** common shares at **C$12.08** per share.  **[1698535_0001062993-25-015889_exhibit99-1.htm:0]** 
- The net proceeds from these offerings are intended to advance engineering of the **Rook I Project**, cover Rook I Pre-Production Capital Costs, and for general corporate purposes.  **[1698535_0001062993-25-015889_exhibit99-1.htm:0]** 
- The offerings are expected to close on or about **October 15, 2025**, pending necessary regulatory approvals.  **[1698535_0001062993-25-015889_exhibit99-1.htm:1]**

NexGen Energy Ltd. Announces Upsized Equity Offerings in Australia and North America

- NexGen Energy Ltd. launched an equity financing on **October 1, 2025**, comprising a North American Offering and an Australian Offering.  **[1698535_0001062993-25-015876_exhibit99-1.htm:0]** 
- The **North American Offering** consists of **33,112,583** common shares at **C$12.08** per share, aiming for gross proceeds of approximately **C$400 million**.  **[1698535_0001062993-25-015876_exhibit99-1.htm:0]** 
- Concurrently, an **Australian Offering** of **30,534,351** common shares targets gross proceeds of approximately **AUD $400 million**.  **[1698535_0001062993-25-015876_exhibit99-1.htm:0]** 
- The net proceeds from the Offering are intended to advance engineering of the **Rook I Project**, cover Rook I Pre-Production Capital Costs, and for general corporate purposes.  **[1698535_0001062993-25-015876_exhibit99-1.htm:0]** 
- The Offering is expected to close on or about **October 15, 2025**, pending necessary regulatory approvals.  **[1698535_0001062993-25-015876_exhibit99-1.htm:1]**

NexGen Energy Ltd. Announces C$400 Million Bought Deal and Concurrent AUD $400 Million Offering

- NexGen Energy Ltd. announced new **off-scale mineralization** at Patterson Corridor East (PCE) from its summer drill program, with holes RK-25-254 and RK-25-256 intersecting **2.0 m** and **2.1 m** of cumulative **>61,000 counts per second (cps)**, respectively.  **[1698535_0001062993-25-015021_exhibit99-1.htm:0]** 
- These results are considered the **best holes from the summer program to date**, validating growth in high-grade continuity, and RK-25-254's intense high-grade intersection at **454.4 m** depth is among the shallowest ever drilled by NexGen.  **[1698535_0001062993-25-015021_exhibit99-1.htm:0]** 
- As of August 28, 2025, the company has completed **21,968.9 m** of its planned **43,000 m** 2025 drill program.  **[1698535_0001062993-25-015021_exhibit99-1.htm:0]**  Since discovery, **48 of 79 drillholes** at PCE are mineralized, with **14 intersecting off-scale (>61,000 cps)**.  **[1698535_0001062993-25-015021_exhibit99-1.htm:0]**

NexGen Energy Announces New Off-Scale Mineralization at Patterson Corridor East

NexGen Energy (NXE)