Vancouver, British Columbia--(Newsfile Corp. - July 24, 2025) - NexGen Energy Ltd. (TSX: NXE) (NYSE: NXE) (ASX: NXG) ("NexGen" or the "Company") is pleased to announce it has exercised its Right of First Refusal to acquire the 10% production carried interest (PCI) held by Rio Tinto Exploration Canada Inc. (Rio Tinto) over 39 of NexGen's mineral claims in the Southwest Athabasca Basin, including those hosting the PCE discovery (Figure 1). NexGen's entire portfolio including the Arrow deposit is now 100% owne ...