Nov 13 (Reuters) - NexGen Energy Ltd NXE.TO
* NexGen appoints Bruce Sprague and Shawn Harriman
* NexGen Energy - appointment of Bruce Sprague as CFO and Shawn Harriman as senior manager, permitting, environment and regulatory affairs of company
* NexGen Energy Ltd - Grace Marosists, current Chief Financial Officer, has become vice president, finance and information technology at NexGen