NexGen Energy Ltd. — Major Shareholding Notification 2022

Apr 5, 2022

Statement of CDIs on Issue

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Part 1 - Entity and announcement details

1.1 Name of +Entity

NEXGEN ENERGY (CANADA) LTD

1.2 Registered Number Type

ARBN

Registration Number 649325128

1.3 ASX issuer code

NXG

1.4 The announcement is

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New announcement

1.5 Date of this announcement

6/4/2022

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Part 2 - Details of CDIs and other securities on issue

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2.1 Statement for month and year

March-2022

2.2a Number and class of all ASX-quoted CDIs on issue ASX +Security Code and Description CDI Ratio NXG : CHESS DEPOSITARY INTERESTS 1:1 1:1 Total number of CDIs quoted on ASX Total number of CDIs quoted on ASX Net Difference (A-B) at end of statement month (A) at end of previous month (B) -106,632 11,306,403 11,413,035 Reason for change:

Common share Net transfers of securities between CDIs and Toronto Stock Exchange (TSX) and New York Stock Exchange as quoted / held on (NYSE)

If the total number of CDIs quoted on ASX at the end of the statement month (A), is greater than the total number of CDIs for which the entity has previously paid an initial listing fee or an additional listing fee under Table 1A and 1C of Guidance Note 15A (C), the entity hereby applies for +quotation of the difference (A - C) and agrees to the matters set out in Appendix 2A of the ASX Listing Rules.

2.2b Number and class of all issued securities not represented by CDIs quoted on ASX

ASX +Security Code and Description

NXGAA : COMMON SHARES Total number of securities at end of Total number of securities at end of Net Difference (A-B) statement month (A) previous month (B) 148,298 468,058,496 467,910,198 Reason for change:

Net change due to transfer of CDIs and other issues of common shares

ASX +Security Code and Description

NXGAB : OPTIONS EXPIRING VARIOUS DATES EX VARIOUS PRICES

Total number of securities at end of Total number of securities at end of Net Difference (A-B) statement month (A) previous month (B) -158,283 43,247,438 43,405,721 Reason for change: Net change due to options issued, exercised and cancelled.

ASX +Security Code and Description

NXGAC : CONVERTIBLE DEBENTURES

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Total number of securities at end of Total number of securities at end of Net Difference (A-B) statement month (A) previous month (B) -129,488 8,010,256 8,139,744

Reason for change:

Change in convertible debentures due to fluctuations in foreign exchange rates.

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