NexGen Energy : 2020 How to Vote

HOW TO VOTE

VOTE YOUR PROXY OR VOTING INSTRUCTION FORM TODAY

VOTING DEADLINE: JUNE 9, 2020 AT 2:00 P.M. PACIFIC TIME

					Registered Shareholders				Beneficial Shareholders
	Voting Method				Shares held in own name and				Shares held with a broker, bank
				represented by a physical certificate.				or other intermediary.
	Internet			www.investorvote.com			www.proxyvote.com
			You will require the 15 digit control number			You will require the 16 digit control
					listed on your proxy			number listed on your voting
									instruction form.
					North American toll free:
	Facsimile		1-866-249-7775				Complete, date, and sign the voting
			Outside North America:			instruction form and fax it to the
							number listed therein.
				416-263-9524
					North American Toll Free:			Call the toll-free listed on your
					1-866-732-VOTE (8683)
	Telephone							voting instruction form and vote
			Outside North America:			using the 16 digit control number
				312-588-4290				provided therein.
					Complete, date and sign the Proxy and
					return in the enclosed postage paid			Complete, date and sign the
					envelope to:
	Mail					Voting Instruction Form and return
			Computershare Investor Services Inc.
					it in the enclosed postage paid
					100 University Avenue, 8th Floor, Toronto,			envelope.
					Ontario M5J 2Y1.