This document provides an overview of NexGen Energy Ltd. and its Arrow uranium discovery in Saskatchewan, Canada. It summarizes that: 1) NexGen is led by a highly experienced uranium team exploring a dominant land position in the Athabasca Basin, home to the world's highest grade uranium deposits. 2) The Arrow discovery remains open and is shaping up to be one of the world's largest and highest grade uranium deposits, with a current strike length of 645m, width of 235m, and vertical extent of 820m. 3) Drilling at Arrow has defined 4 high-grade shear zones, with a core zone within the A2 shear returning some of

1. Arrow: A Rapidly Growing Uranium Discovery
February 2016

2. Disclaimer
nexgenenergy.com | TSX-V: NXE | JANUARY 20162
Information Contained InThis Presentation
This presentation is a summary description of NexGen Energy Ltd. (“NexGen” or the
“Company”) and its business and does not purport to be complete. This presentation is
not, and in no circumstances is it to be construed as, a prospectus, an advertisement, or a
public offering of securities. No securities regulatory authority or similar authority has
reviewed or in any way passed upon the document or the merits of the Company’s
securities and any representation to the contrary is an offence.
Except where otherwise indicated, the information contained in this presentation has
been prepared by NexGenand there is no representation or warranty by NexGen or any
other person as to the accuracy or completeness of the information set forth herein. This
presentation includes information on adjacent properties that was obtained from various
publicly available sources referred to herein and the accuracy and completeness of such
information has not been verified by NexGen. Except as otherwise stated, information
included in this presentation is given as of the date hereof. Neither the delivery of this
presentation nor any sale made under the terms described herein shall imply that the
information herein is correct as of any date after the date hereof.
All dollar amounts referenced herein, unless otherwise indicated, are expressed in
Canadian dollars.
Cautionary Note Regarding Forward-looking Information
This presentation contains “forward-looking information” within the meaning of
applicable securities laws. Forward-looking information includes include, but are not
limited to, information with respect planned exploration activities including the
anticipated completion of a resource estimate, the future interpretation of geological
information, exploration program cost estimates, the future price of uranium and
requirements for additional capital. Generally, forward-looking information can be
identified by the use of forward-looking terminology such as “may”, “will”, “expect”,
“believe”, “plan”, “project”, “anticipate”, “intend”, “estimate” and other similar
terminology.
Forward-looking information is based on the then current expectations, beliefs,
assumptions, estimates and forecasts about NexGen’s business and the industry and
markets in which it operates. Forward-looking information is based upon numerous
assumptions including, among others, the results of planned exploration activities are as
anticipated, the price of uranium, the anticipated cost of planned exploration activities,
that general business and economic conditions will not change in a material adverse
manner, that financing will be available if and when needed and on reasonable terms and
that third party contractors, equipment, supplies and governmental and other approvals
required to conduct NexGen’s planned exploration activities will be available on
reasonable terms and in a timely manner.
Certain factors could cause actual results, performances or achievements of NexGento be
materially different from future results, performances or achievements expressed or
implied by such forward-looking information, including the the risk that the Company has
negative operating cash flow and is dependent on third party financing; uncertainty of
additional funding, no known mineral reserves or mineral resources, pending assay results
may not be consistent with preliminary results, alternative sources of energy, risk
inherent in exploration activities; reliance on key management, failure to obtain
necessary permits and approvals from government authorities environmental and safety
risks including increased regulatory burdens; a possible deterioration in political support
for nuclear energy; and other risks described in the Company’s annual information form.
Although NexGenhas attempted to identify important factors that could cause actual
actions, events or results to differ materially from those described in forward-looking
information, there may be other factors that cause actions, events or results not to be as
anticipated, estimated or intended.
There can be no assurance that such information will prove to be accurate, as actual
results and future events could differ materially from those anticipated in such
information. Accordingly, readers should place undue reliance on forward looking
information. The forward looking information contained in this presentation are made as
of the date of the presentation, and accordingly, subject to change after such date.
NexGen does not undertake to update any forward-looking information, except in
accordance with applicable securities laws.
Technical Information
The scientific and technical information in this presentation has been prepared or
approved by Garrett Ainsworth, P.Geo., Vice President – Exploration& Development, a
“qualified person” within the meaning of National Instrument 43-101 – Standards of
Disclosure for Mineral Projects. Mr. Ainsworth reviewed the data disclosed in this
presentation, including the sampling, analytical and test data underlying the information
contained in this presentation. Mr. Ainsworth verified that the results are accurate by
reviewing the official assay certificates provided to the Company. For a description of the
Company’s quality assurance program and quality control measures, type of samples,
sample intervals, relevant analytical values and testing procedures please refer to the
“Technical Report on the Rook I Property, Saskatchewan Canada” having an effective date
of November 30, 2015, filed under the Company’s profile at www.sedar.com.

3. Summary
3
▷NexGen is led by a team of highly
experienced uranium professionals that span
the disciplines of exploration through to
production.
People
▷Arrow is 100% land-based and remains open
in all directions and at depth (currently
645m strike, 235m width, 820m vertical
extent (from 100m of surface). Shaping up
to be one of the World’s preeminent
uranium assets in terms of potential size and
scale.
Projects
▷Saskatchewan Canada rated 2nd best mining
jurisdiction in World by Fraser Institute for
2015 and is the second largest uranium
producing jurisdiction in World representing
16% of global production.
Jurisdiction
nexgenenergy.com | TSX-V: NXE | JANUARY 2016

4. The Athabasca Basin
nexgenenergy.com | TSX-V: NXE | JANUARY 20164
1.00% U3O8 =
23.50 g/t Au
Due to cost structure
of new uranium
production, incentive
price for new mines
+US$70/lb U3O8
Average resource
grades in the
Athabasca Basin
>100x global average
Two of three mines
in Canada are under
severe technical risk
due to geological
characteristics.
World Nuclear Association (2015), Raymond James Ltd.Based on US$45/lb U & US$1,300/oz Au

5. Athabasca Basin Setting
nexgenenergy.com | TSX-V: NXE | JANUARY 20165
▷ Sandstone-hosted deposits (egress type) tend to have mining challenges due to the fact the mineralization
is ‘perched’ within the unconsolidated and wet Athabasca Sandstone unit.
▷ Arrow is a basement-hosted zone (ingress type) which is analogous to Cameco’s Eagle Point mine.
Company Reports, NexGen Energy

6. Southwest Athabasca Basin
nexgenenergy.com | TSX-V: NXE | JANUARY 20166
Focus: Discover and develop high-grade uranium assets with global scale and technical
simplicity in the most time and cost efficient manner possible.
▷ Cluff Lake Mine
70km to northwest
of Arrow operated
over 90’s by AREVA
Image Cameco Corp.

7. Dominant Land Position
nexgenenergy.com | TSX-V: NXE | JANUARY 20167
▷ NexGen holds the most
dominant land position
in the Southwestern
Athabasca Basin
straddling and going into
the Basin boundary and
hosting all known
conductor corridors.
▷ Potential for all three
deposit types: basement-
hosted (Arrow),
unconformity-hosted
and sandstone-hosted.

8. Geophysical Success at Arrow
nexgenenergy.com | TSX-V: NXE | JANUARY 20168
▷ Disrupted VTEM
conductor
▷ Edge of
magnetic
gradient
▷ Within gravity
low anomaly

9. Project Overview
nexgenenergy.com | TSX-V: NXE | JANUARY 20169
▷ NexGen has employed a unique approach to drilling Arrow which consists of:
• Wide step-outs: up to 200 metres to systematically test the mineralization
• +95% angled holes: Arrow is 4 stacked parallel shears enabling each angled hole to intersect 2-3 shears
• Capital allocation: NexGen puts $10 into exploration for every $1 of G&A

10. Arrow: 4 High-Grade Shears
nexgenenergy.com | TSX-V: NXE | JANUARY 201610
▷ Current plan view of
Arrow zone.
▷ Currently consists of 4
vertical parallel shears;
A1, A2, A3 and A4 that
trend along strike
northeast-to-
southwest.
▷ Enables NexGen to
develop Arrow quickly
by drilling angled holes
which pierce up to 3
shears.
▷ Arrow is currently
defined as having 645m
strike length, 235m
width and 820m
vertical extent (starting
from 100m of surface).
▷ Arrow is open in all
directions and at
depth.

11. A2 High-Grade Core Zone
nexgenenergy.com | TSX-V: NXE | JANUARY 201611
▷ A2 shear was discovered in
February 2014 with 1st drill
hole into target.
▷ Current dimensions of A2
high-grade core zone:
• Strike: 300m
• Vertical: 340m
• True Width: 11-48.3m
▷ Strong continuity of high-
grade mineralization
throughout A2.
▷ Hosts the higher grade A2
sub-zone.

12. Higher Grade A2 Sub-Zone
nexgenenergy.com | TSX-V: NXE | JANUARY 201612
▷ Higher grade A2 sub-zone
currently spans 203m in
strike.
▷ Sub-zone characterized by
dense accumulations of
massive to semi-massive
pitchblende mineralization
continuously across 203m
strike length.
▷ All holes with assays
returned from sub-zone have
continuous grade x
thicknesses (“GT”) of >200 to
787

13. Best Angled Drill Holes in Basin
nexgenenergy.com | TSX-V: NXE | JANUARY 201613
▷ Arrow hosts the top 2 best angled holes drilled into basement-hosted
mineralization in the Athabasca Basin (based on continuous grade X
thickness on public record).
▷ Only 82 drill holes into Arrow yet has already intersected 3 separate holes with >600
continuous GTs.
1.) Company Reports, Dundee, NexGen

14. A3 High-Grade Core Zone
nexgenenergy.com | TSX-V: NXE | JANUARY 201614
▷ A3 shear zone discovered in
winter 2015 drilling.
▷ Remains open in all
directions and at depth.
▷ Broad and continuous high-
grade mineralization
encountered throughout A3.
▷ Recent intercepts continue
to prove up high-grade
nature including:
• AR-15-61c2: 37.0m @
6.30% U3O8
• AR-15-57c3: 50.5m @
2.74% U3O8

15. Unprecedented Speed of Development
nexgenenergy.com | TSX-V: NXE | JANUARY 201615
▷Summer 2014 (A2) ▷Winter 2015 (A2) ▷Summer 2015 (A2)
▷Winter 2015 (A3) ▷Summer 2015 (A3)

16. A Look at Arrow From Underground
nexgenenergy.com | TSX-V: NXE | JANUARY 201616
Northeast NorthwestSoutheast Southwest
Made with Leapfrog software and a 0.05% U3O8 cut-off. No NI 43-101 has been published for the Arrow zone to date.

17. Arrow: Perspective on Scale
nexgenenergy.com | TSX-V: NXE | JANUARY 201617
CN Tower Total
height: 553m
(~2/3rds height of
Arrow)
Arrow
Total height:
820m (starting
from 100m of
surface)
Made with Leapfrog software and a 0.05% U3O8 cut-off. No NI 43-101 has been published for the Arrow zone to date.
▷Arrow remains open in
every direction and at depth.

18. The Eagle Point Analogy
nexgenenergy.com | TSX-V: NXE | JANUARY 201618
1.) NexGen has not verified the information regarding Eagle Point and information regarding
Eagle Point is not necessarily indicative of mineralization at Rook I. See Cameco Corp.
▷ Cameco’s Eagle Point mine mined using
traditional methods (blasthole stoping)
▷ Rabbit Lake produced 198Mlbs since
1975

19. Timeline
nexgenenergy.com | TSX-V: NXE | JANUARY 201619
H1/2016
30,000m winter
drilling commenced
---
Begin metallurgical,
geotechnical,
hydrogeological
testing
---
Release maiden
resource estimate
for Arrow
H2/2016
Complete winter 2016
drilling
---
Large summer 2016
drilling and continued
environmental work in
preparation for
permitting
---
Ongoing test work to
form basis of
economic study
2017
Winter and summer
drill campaigns
---
Ongoing baseline
monitoring,
metallurgical,
geotechnical and
hydrogeological
studies
---
Economic study by
end 2017 to use as
basis for permit
application

20. Bow: Brand New Discovery
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▷ Brand new high-grade
uranium discovery 3.8km
northeast along trend from
Arrow.
▷ Follows ‘pearls on a string’
pattern of uranium
discoveries seen on the
Eastern Athabasca Basin.
▷ Currently defined as having
strike length of 350m and
remains open in all
directions.
▷ Winter 2016 drilling will
focus on Patterson Trend.
▷ Highlights include::
• BO-15-10: 9.5m @
0.20% U3O8, including
1.0m @ 1.44% U3O8

21. Why Uranium?
nexgenenergy.com | TSX-V: NXE | JANUARY 201621
0
Greenhouse Gas
Emissions

22. Uranium - Demand
nexgenenergy.com | TSX-V: NXE | JANUARY 201622
▷ China represents the fastest growing demand for nuclear anywhere in World in
three decades.
▷ China has 26 reactors operating, 25 under construction, 43 planned and 136 proposed
versus the current global reactor fleet of 394.
▷ China’s goal of 58 GW by 2020 and 150 GW by 2030.
World Nuclear Association, Raymond James Ltd.

23. Uranium - Supply
nexgenenergy.com | TSX-V: NXE | JANUARY 201623
▷ 90% of global mine supply under severe technical or sovereign risk.
▷ Saskatchewan ranked #2 best mining jurisdiction by Fraser Institute in 2015, but 2 of 3 operating mines
under severe technical risk.
▷ High concentration of supply with top 10 mines accounting for +50% of annual uranium production.
World Nuclear Association, Raymond James Ltd.

24. Uranium - Outlook
nexgenenergy.com | TSX-V: NXE | JANUARY 201624 World Nuclear Association, Raymond James Ltd.
▷ Demand is expected to outpace total uranium supply by 2018 whereby nuclear utilities will have to
either turn off reactors (challenging and expensive) or pay higher prices for nuclear feed.

25. Summary
nexgenenergy.com | TSX-V: NXE | JANUARY 201625
✩ NexGen is led by a team of highly
experienced uranium professionals that span
the disciplines of exploration through to
production.
People
✩ Arrow is 100% land-based and remains open
in all directions and at depth (currently
645m strike, 235m width, 820m vertical
extent (from 100m of surface). Shaping up
to be one of the World’s preeminent
uranium assets in terms of potential size and
scale.
Projects
✩ Saskatchewan Canada rated 2nd best mining
jurisdiction in World by Fraser Institute for
2015 and is the second largest uranium
producing jurisdiction in World representing
16% of global production.
Jurisdiction

26. Contact
nexgenenergy.com | TSX-V: NXE | JANUARY 201626
▷For more information please visit: www.nexgenenergy.ca or contact:
Travis McPherson – Corporate Development Manager
Phone: +1.604.428.4112
Email: tmcpherson@nexgenenergy.ca

27. Appendicies
nexgenenergy.com | TSX-V: NXE | JANUARY 201627

28. Capital Structure
nexgenenergy.com | TSX-V: NXE | JANUARY 201628
Shares Issued 287,845,820
Fully Diluted 334,541,790
Cash $33 million
Debt None
Insider Ownership 5%
Shareholders ▷ 1832 Asset Management
▷ Blackrock
▷ Fidelity
▷ Rosseau Asset Management
▷ RBC Global Asset Management
▷ CQS Management Ltd.
Warrants
Options
▷ 19,611,524 (weighted average price of $0.60)
▷ 27,084,446 (weighted average price of $0.50)
1.) Share structure as at January 31, 2016. Cash as of February 2, 2016.

29. Management
nexgenenergy.com | TSX-V: NXE | JANUARY 201629
Name Experience
Leigh Curyer - CEO ▷ Chartered Accountant with +20 years experience and ex-CFO of
Southern Cross Resources (now Uranium One)
▷ Managed exploration, feasibility and permitting of Honeymoon
Uranium Project in South Australia
▷ Ex-Head Corproate Development at Accord Nuclear Resources
Management assessing global uranium assets for First Reserve
International
Garrett Ainsworth BSc, PGeo – VP
Exploration
▷ Professional geologist and former Project Manager for Alpha
Minerals-Fission 50/50 JV on Patterson Lake South project from 2007
to 2013
▷ Staked claims, boulder prospecting and led drill programs that led to
discovery of R00E, R390E and R780E zones
▷ Won AMEBC 2014 Colin Spence Award for discovery of Patterson
Lake South
Travis McPherson – Corporate
Development Manager
▷ Ex-Head Corporate Development for TSX-listed gold producer
▷ M&A, debt and equity, permitting, budgeting, investor relations and
corporate strategy experience
Grace Marosits - CFO ▷ Chartered Accountant with public practice and corporate experience
including Deloitte, Westcost Energy and Ballard Power
Joanna Cameron – VP Legal ▷ Lawyer with +20 years experience in exploration and mining
▷ Ex-partner Cassels Brock & Blackwell LLP

30. Board of Directors
nexgenenergy.com | TSX-V: NXE | JANUARY 201630
Name Experience
Christopher McFadden (Chairman) ▷ Lawyer with +20 years experience in exploration and mining
▷ Commercial General Manger for Rio Tinto
Richard Patricio ▷ Lawyer with +15 years capital markets experience
▷ CEO and President of Mega Uranium and Pinetree Capital
Trevor J. Thiele ▷ Chartered Accountant with +30 years experience in capital markets
including CFO of major Australian Agribusinesses (Elders and Viterra)
Craig Parry ▷ Geologist ex-Rio Tinto, Oxiana Limited and G-Resources
▷ Founding member of Tigers Realm Group
Gerry Feldman ▷ Chartered Accountant with +28 years experience in public markets
▷ Ex-partner in a number of accounting firms
James Currie ▷ Mining Engineer with +35 years experience and current COO of
Pretium Resources
▷ Won AMEBC 2014 E.A. Scholz Award for development of New Afton
mine for NewGold
Andrew Browne (Technical
Advisory Head)
▷ Uranium geologist with +43 years experience
▷ Key member of exploration teams at Jabiluka and Ranger 1 No. 3
Deeps

31. Innovative Mining at Cigar Lake
nexgenenergy.com | TSX-V: NXE | JANUARY 201631
▷ Cigar Lake is World’s highest grade uranium mine, but comes with significant
technical challenges.
▷ Due to fact ore body located in wet and unconsolidated Sandstone 450m below surface,
Cameco developed Jet Boring mining system which requires freezing the deposit and
surrounding rock and mining the ore with highly pressurized water jets.
▷ Arrow is basement hosted which means NO complicated freezing would be required as
the mineralization is hosted solely in the competent basement rocks.