NexGen Announces Commencement of 2021 Field and Regional Exploration Drilling Programs at the Rook I Property

NexGen Energy Ltd. (“NexGen” or the “Company”) (TSX: NXE) (NYSE: NXE) (ASX: NXG) is pleased to announce commencement of field programs focused on detailed geotechnical site confirmation studies on the Project and regional exploration drilling at the 100% owned, Rook I property (the “Property”), in the Athabasca Basin, Saskatchewan.