NexGenCommencesLargestDrillProgramatArrowandExpandsSiteInfrastructureatRookI

Vancouver, BC, January 7, 2016 – NexGen Energy Ltd. (“NexGen” or the “Company”) (TSXV:NXE,OTCQX:NXGEF) is pleased to announce the winter 2016 drill program has now commenced at the 100%owned, Rook I Property, Athabasca Basin, Saskatchewan. In addition, the Rook I camp has undergonesignificant improvements leading into this year’s program to facilitate an increase in the number of rigs,improvelogisticalsupportandthecontinuedoptimizationofoperations.

Thewinter2016drillprogramwillcompriseof30,000mofdrillingandanincreasetosixdiamonddrillrigsmakingitthemostnumberofrigseveroperatedatArrow.TheCompanyhascashonhandofapproximately$34MasatJanuary1,2016.

Therearethreeprimaryobjectivesofthewinter2016drillprogrambudgetedat$12M;

1. CoredrillingatArrowZone;a. DelineatingthehighergradeA2sub-zone(the“Sub-Zone”),b. DrilltestingextensionsoftheA2andA3high-gradeshearsfurthersouthwest,c. Testingforflatlyingmineralizationatthebasementunconformityfurthernortheast.

2. Step-outdrillingalongstrikefromtheArrowzonealongthe9kmPattersoncorridoronRookI.3. DrilltheBowdiscovery.

LeighCuryer,ChiefExecutiveOfficer,commented:“Giventhesuccessful2015resultsatArrow,ithasclearlyjustified expanding the drilling program and improving camp infrastructure at Rook I to support thecontinuedoptimizationof theproject. Theadditionofasixth rigmakes thiswinter’sprogramthe largestever atArrow. Moreover,wehave initiatedbaseline environmentalmonitoring studies,metallurgical andgeotechnicalstudiesfor2016.ItisgoingtobeaveryexcitingyearfortheCompanyandshareholders.”

CoreDrillingatArrowZone:

Three rigs have commenced drilling at the Arrow zone with all three using Devico directional drillingtechnologywiththeassistanceofTECHDirectionalServicesInc. TwooftherigsarefocusedondelineatingtheSub-Zonewhichwasdiscoveredduringthesummer2015drillprogramandisazoneofcontinuoushighergradeuraniummineralizationspanning203minstrikelengththatbeginsat lessthan400mbelowsurfaceandremainsopeninalldirections.Thethirdrigisfocusedonexpandinghigh-gradeuraniummineralizationwithintheA2andA3shearsfurthertothesouthwest.

AfourthrigscheduledtocommenceonJanuary14thwill initiallyfocusinandaroundholeAR-15-36whereuranium mineralization was intersected just 4.0 m below the Athabasca Sandstone and basementunconformity.Theseholeswillbetestingforflat-lyingmineralizationattheunconformityinanareathatisup-plungefromknownbasementmineralization.

DrillingAlongStrikeofArrowZoneandPattersonCorridor:

Afifthrig,scheduledtocommencelateJanuary,willsystematicallytestalongstrikeoftheVTEMconductorthathoststheArrowzonebothtothesouthwestandnortheastwheretherearenumeroustargetareaswithsimilargeophysicalcharacteristicsasArrow.ThiswillincorporateNexGen’sdrillingphilosophyofaggressivestep-outstotesttheaerialextentofmineralizationwhichwouldthenbefollowedbydelineation.

DrillingBowDiscoveryandProspectiveAnomaliesonPattersonLake:

A sixth rig is scheduled tocommence inearlyFebruary to further test theBowdiscoveryandotherhighlyprospectiveradon,VTEM,magneticandgravityanomaliesonPattersonLake.DrillingatBowwillcommencewheniceconditionspermitandwillbeginwithstep-outdrillingfromknownmineralizationinholeBO-15-10whichreturned9.5mat0.20%U3O8including1.0mat1.44%U3O8(seeNewsReleasedatedJune30,2015).FurtherdrillingwilltestcoincidentVTEMandradon-in-lakewateranomaliesandstructuraltrapsinterpretedfrompreviousdrillingandgeophysicalsurveys.

OtherActivitiesin2016:

Beyondthislargewinter2016drillcampaign,theCompanywillcontinuebaselineenvironmentalmonitoringaswell as initiatemultiple geotechnical andmetallurgical testingduring2016whichwill form thebasis offuturestudies. Additionally,theCompanywillcontinueactiveengagementwithlocalstakeholdersandhasappliedforpermitstobuildanall-weatheraccessroadtotheRookIcamptofacilitateimprovedsitelogistics,efficiency,safetyandsupporttotheproject.

ThetechnicalinformationinthisnewsreleasehasbeenpreparedinaccordancewiththeCanadianregulatoryrequirements set out in National Instrument 43-101 and reviewed on behalf of NexGen Energy Ltd., byGarrettAinsworth,P.Geo.,VicePresident–Exploration&Development,aqualifiedperson.

Figure1:ArrowZoneDrillHoleLocations

AboutNexGenNexGen isaBritishColumbia corporationwitha focuson theacquisition,explorationanddevelopmentofCanadianuraniumprojects.NexGenhasahighlyexperiencedteamofuraniumindustryprofessionalswithasuccessfultrackrecordinthediscoveryofuraniumdepositsandindevelopingprojectsthroughdiscoverytoproduction.NexGen owns a portfolio of highly prospective uranium exploration assets in the Athabasca Basin,Saskatchewan,Canada,includinga100%interestinRookI,locationoftheArrowDiscoveryinFebruary2014andBowDiscoveryinMarch2015.LeighCuryerChiefExecutiveOfficerNexGenEnergyLtd.+16044284112lcuryer@nexgenenergy.cawww.nexgenenergy.caTravisMcPhersonCorporateDevelopmentManagerNexGenEnergyLtd.+16048162686tmcpherson@nexgenenergy.cahttp://www.nexgenenergy.caTheTSXVhasneitherapprovednordisapprovedthecontentsofthispressrelease.NeithertheTSXVnorits

RegulationServicesProvider(asthattermisdefinedinthepoliciesoftheTSXV)acceptsresponsibilityforthe

adequacyoraccuracyofthisrelease.

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securities legislation. “Forward-lookinginformation”includes,but isnot limitedto,statementswithrespect

to theactivities, events or developments that theCompany expects or anticipateswill ormayoccur in the

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Such forward-looking information and statements are based on numerous assumptions, including among

others, that 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

changeinamaterialadversemanner,thatfinancingwillbeavailableifandwhenneededandonreasonable

terms, and that third party contractors, equipment and supplies and governmental and other approvals

requiredtoconducttheCompany’splannedexplorationactivitieswillbeavailableonreasonabletermsandin

atimelymanner.AlthoughtheassumptionsmadebytheCompanyinprovidingforward-lookinginformation

ormakingforward-lookingstatementsareconsideredreasonablebymanagementatthetime,therecanbe

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Forward-looking information and statements also involve known and unknown risks and uncertainties and

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projections of future events or results expressed or implied by such forward-looking information or

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consistentwithpreliminaryresults,discretionintheuseofproceeds,alternativesourcesofenergy,aboriginal

title and consultation issues, reliance on key management and other personnel, potential downturns in

economic conditions, actual results of exploration activities being different than anticipated, changes in

explorationprogramsbaseduponresults,availabilityofthirdpartycontractors,availabilityofequipmentand

supplies, failure of equipment to operate as anticipated; accidents, effects of weather and other natural

phenomenaandotherrisksassociatedwiththemineralexplorationindustry,environmentalrisks,changesin

lawsandregulations,communityrelationsanddelaysinobtaininggovernmentalorotherapprovals.

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