NexGen Energy : Corporate Presentations (NXE CorpDeck March 2025)

NXE.TO

Securing the Energy Transition

Corporate Presentation

March 2025

We're changing the world of

nuclear energy, so nuclear can change the world.

The world is embracing nuclear energy as the linchpin to a carbon-free future. At the same time, geopolitical tensions are increasing pressure on the limited uranium supply necessary to make this future a reality.

NexGen is essential to meeting the

growing demand for uranium and delivering clean and secure energy solutions.

NexGen is positioned to emerge as a top 10 global mining company, commanding an expansive >190,000 hectare portfolio in Saskatchewan's southwest Athabasca Basin, Canada.

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NexGen Is:

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UR A NI UM ' S M OM E NT

Rising Demand…Fragile Supply

WNA Uranium Supply Demand (Upper Scenario)

D E M A N D

S U P P L Y

The uranium market is currently facing a ~50-60Mlb deficit and growing.

Demand for uranium is expected to rise

E M A N D200% by 2040

Creating a ~240Mlb annual deficit that will

continue to widen3 as growth is expected to triple by 20504.

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UR A NI UM ' S M OM E NT

Bifurcating Market Dynamics

~70% of Demand is from OECD Countries3 ~75% of supply is from state-sponsored entities4

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65 Nuclear Reactors Set for Completion by ~2030

NUCLEAR REACTORS WORLDWIDE: AN ADDITIONAL 70 GW BY THE END OF THE DECADE 23

=

Adds:

65

70 GW

Nuclear Reactors Under

Of Clean Baseload

Construction for the

Energy

Next Decade

1GW

Nuclear reactor, in average requires

~0.4 to 0.5Mlb of U3O8 annually 24

Rook I Annual Production

~30Mlbs

Year 1- 5 Avg

Equals Powering:

60-75

1GW nuclear reactors 24

B E N E F I T S

Eno ugh carbon - free energy to power up to

46 million homes 7

That's approximately

1/3 of the homes in the U.S.

By comparison, Tesla produced ~1.8 million cars in 2023

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At A Glance

Robust

C$6.32B NPV

C$1,932M FCF

Economics

8% discount, after-tax

Years 1 - 5, after-tax

@ US$95/lb.

High Grade

29.2Mlbs U3O8

256.7Mlbs M&I

Production

Year 1- 5 Avg Annual Production

@ 3.10% U3O8

Longevity

11.7 year

24 year

Initial Mine Life

Mill Permit

Quick Payback

C$2.2B Capex

45.2% IRR

12-month payback

8% discount, after-tax

*2024 CapEx Update using $95/lb. The above sensitivity based solely on price per lb. Does not include inferred resources or growth potential

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N E X G E N ' S R OO K I P R O J E C T

An Unrivaled Mining Deposit

M E A S U R E D R E S O U R C E S 6 :

2,183,000 Tonnes

4.35% Grade U3O8

209,600,000 lbs. U3O8 (contained)

I N D I C A T E D R E S O U R C E S 6 : 1,572,000 Tonnes

1.36% Grade U3O8

47,100,000 lbs. U3O8 (contained)

I N F E R R E D R E S O U R C E S 6 :

( n o t i n c l u d e d i n N P V )

4,399,000 Tonnes

0.83% Grade U3O8

80,700,000 lbs. U3O8 (contained)

DEPOSIT REMAINS OPEN

M&I Total: 256,700,000 lbs. U3O8

Over 65% of M&I at 15.9% U3O8

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Disclaimer

NexGen Energy Ltd. published this content on March 11, 2025, and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on March 11, 2025 at 15:34:04.953.