Corporate Presentation - January 2016

Arrow:ARapidlyGrowingUraniumDiscovery|January2016

Disclaimer

nexgenenergy.com|TSX-V:NXE|JANUARY20162

Information Contained InThis Presentation

ThispresentationisasummarydescriptionofNexGen EnergyLtd.(“NexGen”orthe“Company”)anditsbusinessanddoesnotpurporttobecomplete.Thispresentationisnot,andinnocircumstancesisittobeconstruedas,aprospectus,anadvertisement,orapublicofferingofsecurities.NosecuritiesregulatoryauthorityorsimilarauthorityhasreviewedorinanywaypasseduponthedocumentorthemeritsoftheCompany’ssecuritiesandanyrepresentationtothecontraryisanoffence.

Exceptwhereotherwiseindicated,theinformationcontainedinthispresentationhasbeenpreparedbyNexGenandthereisnorepresentationorwarrantybyNexGen oranyotherpersonastotheaccuracyorcompletenessoftheinformationsetforthherein.ThispresentationincludesinformationonadjacentpropertiesthatwasobtainedfromvariouspubliclyavailablesourcesreferredtohereinandtheaccuracyandcompletenessofsuchinformationhasnotbeenverifiedbyNexGen.Exceptasotherwisestated,informationincludedinthispresentationisgivenasofthedatehereof.Neitherthedeliveryofthispresentationnoranysalemadeunderthetermsdescribedhereinshallimplythattheinformationhereiniscorrectasofanydateafterthedatehereof.

Alldollaramountsreferencedherein,unlessotherwiseindicated,areexpressedinCanadiandollars.

CautionaryNoteRegardingForward-lookingInformation

Thispresentationcontains“forward-lookinginformation”withinthemeaningofapplicablesecuritieslaws.Forward-lookinginformationincludesinclude,butarenotlimitedto,informationwithrespectplannedexplorationactivitiesincludingtheanticipatedcompletionofaresourceestimate,thefutureinterpretationofgeologicalinformation,explorationprogramcostestimates,thefuturepriceofuraniumandrequirementsforadditionalcapital.Generally,forward-lookinginformationcanbeidentifiedbytheuseofforward-lookingterminologysuchas“may”,“will”,“expect”,“believe”,“plan”,“project”,“anticipate”,“intend”,“estimate”andothersimilarterminology.

Forward-lookinginformationisbasedonthethencurrentexpectations,beliefs,assumptions,estimatesandforecastsaboutNexGen’s businessandtheindustryandmarketsinwhichitoperates.Forward-lookinginformationisbaseduponnumerousassumptionsincluding,amongothers,theresultsofplannedexplorationactivitiesareasanticipated,thepriceofuranium,theanticipatedcostofplannedexplorationactivities,thatgeneralbusinessandeconomicconditionswillnotchangeinamaterialadversemanner,thatfinancingwillbeavailableifandwhenneededandonreasonabletermsandthatthirdpartycontractors,equipment,suppliesandgovernmentalandotherapprovalsrequiredtoconductNexGen’s plannedexplorationactivitieswillbeavailableonreasonabletermsandinatimelymanner.

Certainfactorscouldcauseactualresults,performancesorachievementsofNexGen tobe

materiallydifferentfromfutureresults,performancesorachievementsexpressedorimpliedbysuchforward-lookinginformation,includingthetheriskthattheCompanyhasnegativeoperatingcashflowandisdependentonthirdpartyfinancing;uncertaintyofadditionalfunding,noknownmineralreservesormineralresources,pendingassayresultsmaynotbeconsistentwithpreliminaryresults,alternativesourcesofenergy,riskinherentinexplorationactivities;relianceonkeymanagement,failuretoobtainnecessarypermitsandapprovalsfromgovernmentauthoritiesenvironmentalandsafetyrisksincludingincreasedregulatoryburdens;apossibledeteriorationinpoliticalsupportfornuclearenergy;andotherrisksdescribedintheCompany’sannualinformationform.AlthoughNexGenhasattemptedtoidentifyimportantfactorsthatcouldcauseactualactions,eventsorresultstodiffermateriallyfromthosedescribedinforward-lookinginformation,theremaybeotherfactorsthatcauseactions,eventsorresultsnottobeasanticipated,estimatedorintended.

Therecanbenoassurancethatsuchinformationwillprovetobeaccurate,asactualresultsandfutureeventscoulddiffermateriallyfromthoseanticipatedinsuchinformation.Accordingly,readersshouldplaceunduerelianceonforwardlookinginformation.Theforwardlookinginformationcontainedinthispresentationaremadeasofthedateofthepresentation,andaccordingly,subjecttochangeaftersuchdate.NexGen doesnotundertaketoupdateanyforward-lookinginformation,exceptinaccordancewithapplicablesecuritieslaws.

TechnicalInformation

ThescientificandtechnicalinformationinthispresentationhasbeenpreparedorapprovedbyGarrettAinsworth,P.Geo.,VicePresident– Exploration&Development,a“qualifiedperson”withinthemeaningofNationalInstrument43-101– StandardsofDisclosureforMineralProjects.Mr.Ainsworthreviewedthedatadisclosedinthispresentation,includingthesampling,analyticalandtestdataunderlyingtheinformationcontainedinthispresentation.Mr.AinsworthverifiedthattheresultsareaccuratebyreviewingtheofficialassaycertificatesprovidedtotheCompany.ForadescriptionoftheCompany’squalityassuranceprogramandqualitycontrolmeasures,typeofsamples,sampleintervals,relevantanalyticalvaluesandtestingprocedurespleaserefertothe“TechnicalReportontheRookIProperty,SaskatchewanCanada”havinganeffectivedateofNovember30,2015,filedundertheCompany’sprofileatwww.sedar.com.

Summary

3

▷NexGen isledbyateamofhighlyexperienceduraniumprofessionalsthatspanthedisciplinesofexplorationthroughtoproduction.

People

▷Arrowis100%land-basedandremainsopeninalldirectionsandatdepth(currently645mstrike,235mwidth,820mverticalextent(from100mofsurface).ShapinguptobeoneoftheWorld’spreeminenturaniumassetsintermsofpotentialsizeandscale.

Projects

▷SaskatchewanCanadarated2nd bestminingjurisdictioninWorldbyFraserInstitutefor2015andisthesecondlargesturaniumproducingjurisdictioninWorldrepresenting16%ofglobalproduction.

Jurisdiction

nexgenenergy.com |TSX-V:NXE|JANUARY2016

The Athabasca Basin


Globalaverageresourcegrades0.10%U3O8

Duetocoststructureofnewuranium

production, incentivepricefornewmines+US$70/lbU3O8

Averageresourcegradesinthe

AthabascaBasin>100xglobal average

TwoofthreeminesinCanadaareunderseveretechnicalriskduetogeologicalcharacteristics.

WorldNuclearAssociation(2015),RaymondJamesLtd.

Athabasca Basin Setting


▷ 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.

Valuable Rock


1.00%U3O8=23.50g/tAu

BasedonUS$45/lbU&US$1,300/oz Au

Project Overview


Focus: Discoveranddevelophigh-gradeuraniumassetswithglobalscaleandtechnicalsimplicity inthemosttimeandcostefficientmannerpossible.

Dominant Land Position


▷ NexGen holdsthemostdominantlandpositionintheSouthwesternAthabascaBasinstraddlingandgoingintotheBasinboundaryandhostingall knownconductorcorridors.

▷ Potentialforallthreedeposittypes:basement-hosted(Arrow),unconformity-hostedandsandstone-hosted.

Arrow Zone


Project Overview


▷ NexGen hasemployedauniqueapproachtodrillingArrowwhichconsistsof:

• Widestep-outs:upto200metrestosystematically testthemineralization

• +95%angledholes:Arrowis4stackedparallel shearsenablingeachangledhole tointersect2-3shears

• Capitalallocation:NexGen puts$10intoexplorationforevery$1ofG&A

Geophysical Success at Arrow


▷ DisruptedVTEMconductor

▷ Edgeofmagneticgradient

▷ Withingravitylowanomaly

Arrow: 4 High-Grade Shears


▷ Current plan view of Arrow zone.

▷ Currentlyconsistsof4verticalparallel shears;A1,A2,A3andA4thattrendalongstrikenortheast-to-southwest.

▷ EnablesNexGen todevelopArrowquicklybydrillingangledholeswhichpierceupto3shears.

▷ Arrowiscurrentlydefinedashaving645mstrikelength,235mwidthand820mverticalextent (startingfrom100mofsurface).

▷ Arrowisopeninalldirectionsandatdepth.

A2 High-Grade Core Zone


▷ A2shearwasdiscoveredinFebruary2014with1st drillholeintotarget.

▷ CurrentdimensionsofA2high-gradecorezone:

• Strike:300m• Vertical:340m• TrueWidth:11-48.3m

▷ Strongcontinuityofhigh-grademineralizationthroughoutA2.

▷ HoststhehighergradeA2sub-zone.

Higher Grade A2 Sub-Zone


▷ HighergradeA2sub-zonecurrentlyspans203minstrike.

▷ Sub-zonecharacterizedbydenseaccumulationsofmassivetosemi-massivepitchblendemineralizationcontinuouslyacross203mstrikelength.

▷ Allholeswithassaysreturnedfromsub-zonehavecontinuousgradexthicknesses(“GT”)of>200to655

Best Angled Drill Holes in Basin


▷ 5 drill holes at Arrow rank in the top 8 for best angled drill holes in the Athabasca Basin within the basement rock (based on continuous grade X thickness on public record).

▷ Only82drillholesintoArrowyethasalreadyintersected2separateholeswith>600continuousGTs.

▷ McArthurRiveristheonlyprojectknownintheBasinwithabettercontinuousGTfromthebasementrock.

1.)CompanyReports,Dundee,NexGen

Unprecedented Speed of Development


▷Summer2014(A2) ▷Winter2015(A2) ▷Summer2015(A2)

▷Winter2015(A3) ▷Summer2015(A3)

A3 High-Grade Core Zone


▷ A3shearzonediscoveredinwinter2015drilling.

▷ Remainsopeninalldirectionsandatdepth.

▷ Broadhigh-grademineralizationencounteredthroughoutA3.

▷ Recent interceptscontinuetoproveuphigh-gradenatureincluding:

• AR-15-57c2:[email protected]%U3O8

• AR-15-57c3:[email protected]%U3O8

A Look at Arrow From Underground


Northeast NorthwestSoutheast Southwest

MadewithLeapfrogsoftwareanda0.05%U3O8cut-off.NoNI43-101hasbeenpublishedfortheArrowzonetodate.

Arrow: Perspective on Scale


CNTowerTotalheight:553m(~2/3rdsheightofArrow)

ArrowTotalheight:820m(startingfrom100mofsurface)

MadewithLeapfrogsoftwareanda0.05%U3O8cut-off.NoNI43-101hasbeenpublishedfortheArrowzonetodate.

▷Arrowremainsopenineverydirectionandatdepth.

The Eagle Point Analogy


▷EaglePointisoneofthreeoperatinguraniummines inCanadaandisowned100%byCameco• RabbitLakecamphasproducedover198Mlbssinceoperations beganin1975.

▷100%basement-hosted (likeArrow)andminedusingblasthole stoping(nofreezing).

1.)NexGen hasnotverifiedtheinformationregardingEaglePointandinformationregardingEaglePointisnotnecessarilyindicativeofmineralizationatRookI.SeeCameco Corp.

Timeline


H1/2016

30,000mwinterdrillingcommenced

---Finalassaysfrom

summer2015drilling---

Beginmetallurgical,geotechnical,

hydrogeologicaltesting---

Releasemaidenresourceestimate

forArrow

H2/2016

Completewinter2016drilling---

Largesummer2016drillingandcontinuedenvironmentalworkin

preparationforpermitting

---Ongoingtestworkto

formbasisofeconomicstudy

2017

Winterandsummerdrill campaigns

---Ongoingbaseline

monitoring,metallurgical,

geotechnicalandhydrogeological

studies---

Economicstudybyend2017touseasbasisforpermitapplication

Bow: Brand New Discovery


▷ Brandnewhigh-gradeuraniumdiscovery3.8kmnortheastalongtrendfromArrow.

▷ Follows‘pearlsonastring’patternofuraniumdiscoveries seenontheEasternAthabascaBasin.

▷ Currentlydefinedashavingstrikelengthof350mandremainsopeninalldirections.

▷ Aggressivefollow-updrillingplannedforwinter2016.

▷ Highlights include::• BO-15-10:9.5m@

0.20%U3O8,[email protected]%U3O8

Multiple High-Impact Regional Targets


▷ ThegeophysicalsignatureofArrowisreplicatednumeroustimesacrosstheRookIlandpackage

▷ Multiple targetsalongtrendfromArrowtothenortheastandsouthwestandadditionallymanyArrow‘look-a-like’exploration targetsontheDerkson Corridorwhichremainslargelyuntested.

Eastern Property Portfolio


▷ NexGen holdsinterestsinhighlyprospectiveassetsinthehistoricEasternAthabascaBasin.

▷ Radio:AdjacenttoandalongstrikeofRoughriderdepositwhichwasacquiredbyRioTintoinFebruary2012for$654millioncash.

▷ Thorburn Lake:Located7kmeastandontrendwithCigarLake,theworld’shighestgradeuraniummine(2Preserves234.9Mlbs– [email protected]%U3O8).Nineoffifteenhistoricdrillholeshaveintersecteduraniummineralization withdeepestholeonlygoing10-15mintothebasement.

▷ Madison&2ZLake:Containsshallowsandstonehosteduraniummineralizationandhaspotentialforbasementhostedmineralization.

Management


Name ExperienceLeighCuryer - CEO ▷ CharteredAccountant with+20yearsexperienceandex-CFOof

SouthernCross Resources(nowUraniumOne)▷ Managed exploration,feasibilityandpermittingofHoneymoon

UraniumProjectinSouthAustralia▷ Ex-HeadCorproate DevelopmentatAccordNuclearResources

Managementassessing globaluraniumassetsforFirstReserveInternational

GarrettAinsworthBSc,PGeo – VPExploration

▷ Professional geologistandformerProjectManagerforAlphaMinerals-Fission 50/50JVonPattersonLakeSouthprojectfrom2007to2013

▷ Stakedclaims,boulder prospecting andleddrillprogramsthatledtodiscovery ofR00E,R390EandR780Ezones

▷ WonAMEBC2014Colin SpenceAwardfordiscovery ofPattersonLakeSouth

TravisMcPherson– CorporateDevelopmentManager

▷ Ex-Head CorporateDevelopmentforTSX-listedgoldproducer▷ M&A,debtandequity, permitting,budgeting,investorrelationsand

corporatestrategyexperience

GraceMarosits - CFO ▷ CharteredAccountantwithpublic practiceandcorporateexperienceincludingDeloitte,Westcost EnergyandBallardPower

JoannaCameron– VPLegal ▷ Lawyerwith+20yearsexperienceinexploration andmining▷ Ex-partnerCassels Brock&BlackwellLLP

Board of Directors


Name ExperienceChristopherMcFadden (Chairman) ▷ Lawyerwith+20yearsexperienceinexploration andmining

▷ CommercialGeneralMangerforRio Tinto

RichardPatricio ▷ Lawyer with+15yearscapitalmarketsexperience▷ CEOandPresidentofMegaUraniumandPinetree Capital

TrevorJ.Thiele ▷ CharteredAccountantwith+30yearsexperienceincapitalmarketsincluding CFOofmajorAustralianAgribusinesses (EldersandViterra)

CraigParry ▷ Geologistex-Rio Tinto,Oxiana LimitedandG-Resources▷ FoundingmemberofTigers RealmGroup

GerryFeldman ▷ CharteredAccountantwith+28yearsexperienceinpublicmarkets▷ Ex-partnerinanumberofaccountingfirms

JamesCurrie ▷ MiningEngineerwith+35yearsexperienceandcurrentCOOofPretium Resources

▷ WonAMEBC2014E.A.Scholz Awardfordevelopment ofNewAftonmineforNewGold

AndrewBrowne(TechnicalAdvisoryHead)

▷ Uraniumgeologistwith+43yearsexperience▷ Keymember ofexplorationteamsatJabiluka andRanger1No.3

Deeps

Capital Structure


Shares Issued 286,884,616

FullyDiluted 329,446,790

Cash $34 million

Debt None

InsiderOwnership 5%

Shareholders ▷ 1832AssetManagement▷ Blackrock▷ Fidelity▷ Rosseau AssetManagement▷ RBCGlobal AssetManagement▷ CQSManagementLtd.

WarrantsOptions

▷ 20,532,728(weighted averagepriceof$0.59)▷ 22,049,446(weightedaveragepriceof$0.44)

1.)SharestructureasatDec.31,2015.CashasofJanuary7,2016.

Summary


✩ NexGen isledbyateamofhighlyexperienceduraniumprofessionalsthatspanthedisciplinesofexplorationthroughtoproduction.

People

✩ Arrowis100%land-basedandremainsopeninalldirectionsandatdepth(currently645mstrike,235mwidth,820mverticalextent(from100mofsurface).ShapinguptobeoneoftheWorld’spreeminenturaniumassetsintermsofpotentialsizeandscale.

Projects

✩ SaskatchewanCanadarated2nd bestminingjurisdictioninWorldbyFraserInstitutefor2015andisthesecondlargesturaniumproducingjurisdictioninWorldrepresenting16%ofglobalproduction.

Jurisdiction

Appendicies


Analyst Coverage


Name FirmDavidSadowski ▷ RaymondJamesLtd.

TyronBreytenbach ▷ Cormark SecuritiesInc.

ColinHealey ▷ HaywoodSecurities Inc.

RobChang ▷ CantorFitzgeraldCanada

DavidTalbot ▷ DundeeCapitalMarkets

PhilSwifen ▷ Numis SecuritiesLtd.

Uranium - Demand


▷ China represents the fastest growing demand for nuclear anywhere in World in three decades.

▷ Chinahas26reactorsoperating,25underconstruction,43plannedand136proposedversusthecurrentglobalreactor fleetof394.

▷ China’sgoalof58GWby2020and150GWby2030.

WorldNuclearAssociation,RaymondJamesLtd.

Uranium - Supply


▷ 90% of global mine supply under severe technical or sovereign risk.

▷ Saskatchewanranked#2bestminingjurisdictionbyFraserInstitutein2015,but2of3operatingminesunderseveretechnical risk.

▷ Highconcentrationofsupplywithtop10minesaccountingfor+50%ofannualuraniumproduction.

WorldNuclearAssociation,RaymondJamesLtd.

Uranium - Outlook

nexgenenergy.com|TSX-V:NXE|JANUARY201633 WorldNuclearAssociation,RaymondJamesLtd.

▷ 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.

Directional Drilling


▷ For the first time at Arrow, directional drilling was employed in summer 2015 which allows for multiple branches cut from a single pilot hole. This method uses no wedges and ensures pierce point targets are hit accurately.

▷ Estimatedcostsavingsofapproximately30%byno‘lostholes’andnore-drills.

▷ Enables fasterre-entryintomineralizedzonewhichhashelpedArrowdevelopatsuchpace.

Innovative Mining at Cigar Lake


▷ Cigar Lake is World’s highest grade uranium mine, but comes with significant technical challenges.

▷ DuetofactorebodylocatedinwetandunconsolidatedSandstone450mbelowsurface,Cameco developedJetBoringminingsystemwhichrequires freezingthedepositandsurroundingrockandminingtheorewithhighlypressurizedwaterjets.

▷ ArrowisbasementhostedwhichmeansNOcomplicatedfreezingwouldberequiredasthemineralization ishostedsolelyinthecompetentbasementrocks.

Contact


▷Formoreinformationplease visit:www.nexgenenergy.ca orcontact:

TravisMcPherson – CorporateDevelopment ManagerPhone:+1.604.428.4112Email:[email protected]

Corporate Presentation - January 2016

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