 VANCOUVER , Dec. 5, 2019 CNW - NexGen Energy Ltd. NexGen or the Company TSX: NXE, NYSE MKT: NXE is pleased to report a new milestone in its Environmental Assessment process. NexGen has successfully entered into Study Agreements with four local communities within the project area. The communities are all within proximity Map 1 to the 100 owned, Rook I Project in the Athabasca Basin, Saskatchewan , which is currently in the process of Feasibility and Environmental Assessment under CEAA 2012. 