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Picture: Rook I camp

Arrow – Rapidly growing uranium discovery October 1, 2014

Disclaimer

Information Contained In This 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 NexGen and 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.

Note: There is no known uranium mineralization at either the Radio Project or

Rook I. Information regarding adjacent properties contained in this presentation is

not necessarily indicative of the mineralization at the projects described herein.

All dollar amounts referenced herein, unless otherwise indicated, are expressed in

Canadian dollars.

Cautionary Note Regarding Forward-looking Information

Statements contained in this presentation that are not current or historical factual

statements may constitute “forward-looking information” within the meaning of

applicable securities laws including statements with respect to the properties, a

concurrent financing, our plans for exploration and development of our properties

and our financial condition, operations and prospects. The forward-looking

information reflects current expectations regarding future results, performance or

achievements and speaks only as of the date of this presentation. When used in

this presentation, forward-looking information can be identified by such words as

“may”, “will”, “expect”, “believe”, “plan”, “project”, “anticipate”, “intend”, “estimate”

and other similar terminology. Such forward-looking information involves known

and unknown risks, uncertainties and other factors that may cause the actual

results, performance or achievements of the Company to be materially different

from any future results, performance or achievements expressed in or implied by

such information. Such risks, uncertainties and other factors include, but are not

limited in any manner to those risks set forth in this presentation under the

heading “Risk Factors”, including, the risk that no mineralization will be identified

on the Radio and Rook I properties; the Company’s dependence on third party

financing; the Company’s limited operating history; risks inherent in exploration

activities; environmental and safety risks including increased regulatory burdens;

unexpected geological or hydrological conditions; a possible deterioration in

political support for nuclear energy; changes in government regulations and

policies, including trade laws and policies; demand for nuclear power; failure to

obtain necessary permits and approvals from government authorities; weather

and other natural phenomena; and other exploration, development, operating,

financial market and regulatory risks. The foregoing list of factors is not

exhaustive.

The forward-looking information contained in this presentation requires

management to make certain assumptions including with respect to the financing

and its ability to successfully develop its properties. Although management of the

Company believes that the assumptions underlying, and the expectations

reflected in, the forward-looking information are reasonable, significant risks and

uncertainties are involved in such information. Management can give no

assurances that its assumptions, estimates and expectations will prove to have

been correct. Forward-looking information should not be read as guarantees of

future performance or results, and will not necessarily be accurate indications of

whether or not or the times at or by which such performance or results will be

achieved. Many factors that are beyond the Company’s control could cause

actual results to differ materially from the results discussed in the forward-looking

statements.

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Arrow -The first 30 holes

- Large Area of mineralization

defined 515 m x 215 m

- Multiple high grade intervals

- 28 of 30 holes mineralized

- Cash at bank $6.5M

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Share Structure

As of July 31, 2014

Shares Issued & Outstanding 170,025,760

Warrants ($0.40 - $0.65) 39,505,472

Options ($0.30 - $0.425) 9,635,637

Fully Diluted 219,166,869

Cash $6.5M

Ownership Tigers Realm Minerals & Associates

Mega Uranium

Radio Optionors (x3)

19%

18%

10%

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TSX-V:

NXE

Board, Executive & Technical Team

Chris McFadden Chairman

Leigh Curyer Chief Executive Officer

Andriyko Herchak Chief Financial Officer

Richard Patricio Director

Trevor Thiele Director

Craig Parry Director

Gerry Feldman Director

James Currie

Director

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Strong team with a

successful track record in

uranium exploration.

Technical Team

Garrett Ainsworth VP Exploration & Development

James Sykes Senior Geologist

Jenn Kocay Exploration Geologist

Technical Advisory

Committee

Andrew Browne former VP Exploration & Development

Craig Parry Director

Project Overview

6 Project Overview Located in the shallower sections of the Athabasca Basin

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West Athabasca Basin

Properties

• Focused on shallow high grade

targets along edge of Athabasca

Basin

• Southwest Athabasca is an

emerging uranium district

• Largely underexplored compared

to the east side of the Athabasca

Basin

Rook I – West, 12 Target Areas

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Patterson Lake

South

Arrow

“Arrow” RK-14-21 discovery hole

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Arrow: Stacked vertical mineralized shear zones

• Conductor break

• Gravity low

AR-14-15

AR-14-15 Assay Results – Most intensive

mineralization to date

RS-125 HANDHELD RADIOACTIVITY RESULTS = within 305.7 m (385.8 - 691.5 m)

51.1 m total composite radioactivity including 4.8 m off-scale

81.9 m total composite U3O8 at weighted average of 1.55% U3O8

1st HIGH GRADE URANIUM INTERVAL = 22.35 m (564.00 – 586.35 m):

3.42% U3O8 over 22.35 m

Including 10.72% U3O8 over 6.85 m

Including 15.74% U3O8 over 4.50 m

Including 26.10% U3O8 over 2.60 m

Highest assay within the interval: 55.8% U3O8 over 0.45 m

2nd HIGH GRADE URANIUM INTERVAL = 32.0 m (594.0 – 626.0 m):

1.52% U3O8 over 32.0 m

10.40% U3O8 over 3.15 m

Highest assay within the interval: 43.7% U3O8 over 0.35 m

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AR-14-30 Radioactivity Results – Record Drill

Hole at the Arrow Zone

RS-125 HANDHELD RADIOACTIVITY RESULTS = 429.9 m section (298.3 to 728.2 m)

206.6 m total composite mineralization including 53.85 m off-scale radioactivity

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AR-14-30

Down-Hole

Gamma Log

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Cross Section of

L4500N highlighting

AR-14-30

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The Eagle Point Deposit Analogy 15

65 million lbs produced, 20 million lbs reserve, within >200 million lb district

The Eagle Point Deposit Analogy 16

The Patterson Corridor Trend 17

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Winter 2014 Program Assay Highlights

DDH From To Interval wt %U3O8

COG 0.01% Includes From To Interval

wt %U3O8 COG 5.00%

RK-14-30 475.00 481.20 6.20 2.94 includes 476.20 478.80 2.60 5.81

508.00 518.00 10.00 2.51 includes 510.00 510.50 0.50 5.84

and 513.80 515.50 1.70 10.26

549.40 554.30 4.90 1.51

549.90 550.30 0.40 12.50

570.60 579.00 8.40 1.61 includes 571.85 572.10 0.25 8.57

includes 577.30 577.65 0.35 11.60

and 578.70 579.00 0.30 5.10

RK-14-27 235.00 264.00 29.00 1.04 includes 249.85 250.25 0.40 23.50

and

253.15 254.25 1.10 9.42

RK-14-21 517.25 523.00 5.75 0.37 includes 519.00 519.25 0.25 5.77

• Assays confirm all 8 holes at Arrow contain uranium mineralization

• Multiple parallel steeply dipping high grade uranium mineralization zones within

broader mineralized zones

• Continuity of uranium mineralization between holes on each cross section

• RK-14-30 intersected 30 individual zones of uranium mineralization totaling

124.1 meters at 0.68% U3O8 weighted average

• RK-14-27 maximum continuous intersection of 29 meters at 1.04% U3O8

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Arrow, cross-section holes RK-14-28, -30

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Arrow, cross section RK-14-21, -25, -27, -29

Exploration Program & Budget A continuous and focused exploration program*

Property Program Timeline Budget ($M)

Rook 1 6000 meters of diamond drilling,

detailed gravity on a small

section of the Dirksen Trend

January – March

2014 $3M

Rook 1 13,500 meters of diamond

drilling, detailed gravity over

priority target grids

Mid May –

September 2014 $7M

*Timing of expenditures subject to seasonal conditions

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Contact

Investor Relations

604-684-6730 | 1-866-684-6730

NXE@kincommunications.com

Head Office

2450 – 650 W. Georgia Street

Vancouver, BC V6B 4N9

604-428-4112

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