NexGen Announces 64% Increase in Average Annual After-tax Cash Flow in Pre-Feasibility Study, After Tax NPV of $3.7BN, 43% Increase in Indicated Resources, and Initiates the Largest Drill Campaign in Company's History to Expedite Arrow to Feasibility

NexGen Announces 64% Increase in Average Annual After-tax Cash Flow in Pre-Feasibility Study, After Tax NPV of $3.7BN, 43% Increase in Indicated Resources, and Initiates the Largest Drill Campaign in Company's History to Expedite Arrow to Feasibility

Canada NewsWire

VANCOUVER, Nov. 5, 2018 /CNW/ - NexGen Energy Ltd. ("NexGen" or the "Company") (TSX:NXE, NYSE:NXE) is pleased to announce the results of an independent Pre-Feasibility Study ("PFS" or the "Study") and Mineral Resource update of the basement-hosted Arrow Deposit, located on the Company's 100% owned Rook I project ("Arrow" or the "Project") in the Athabasca Basin in Saskatchewan, Canada.  The PFS was completed jointly by Wood Group, and Roscoe Postle Associates Inc. ("RPA"), with other technical inputs completed by sub-consultants.  

Pre-Feasibility Study Highlights

Table 1 – Summary of Arrow Deposit Pre-Feasibility Study (based on US $50/lb U3O8)

PEA (July 31, 2017)



After-Tax Net Present Value (8% discount)

CAD $3.49 Billion

CAD $3.7 Billion


After-Tax Internal Rate of Return (IRR)




After-Tax Payback

1.1 Years

1.2 Years


Initial Capital Costs ("CAPEX")

CAD $1.19 Billion

CAD $1.25 Billion


Average Annual Production (Life of Mine)

18.5 M lbs U3O8

25.4 M lbs U3O8


Average Annual Production (Years 1-5)

27.6 M lbs U3O8

29.0 M lbs U3O8


Average Daily Throughput

1,448 tonnes per day

1,039 tonnes per day


Average Annual Grade

1.73% U3O8

3.09% U3O8


Mine Life

15 Years

9 Years

-6 years

Average Annual After -Tax Net Cash Flow
(Life of Mine)

CAD $553 Million

CAD $909 Million


Average Annual Operating Cost ("OPEX",
Life of Mine)

CAD $8.37

 (US $6.70)/lb U3O8

CAD $ 5.81

 (US $4.36)/lb U3O8


Operating Margins (Life of Mine)





Note: PEA based on CAD $1.00 = US $0.80, PFS based on CAD $1.00 = US $0.75


  1. CAPEX – Increased due to the introduction of Provincial Sales Tax (PST) applicable to capital projects.  Excluding PST, initial capital costs reduced by approximately CAD $64 Million to CAD $1.18 Billion (0.5% lower than PEA). Additionally, due to the reallocation of tailings management to operating costs, the sustaining capital component of capital expenditures has been significantly reduced.

  2. Mine Life - PFS is based on Indicated Resources only and does not include the current additional Inferred Resources 91.70 M lbs of U3O8 contained in 4.84 M tonnes grading 0.86% U3O8 or further potential increases in the resource base at Arrow that remains open in many directions (Figure 1). 

Leigh Curyer, Chief Executive Officer, commented: "An assessment across all of the PFS metrics, results in a substantial improvement to the PEA with a 64% increase in average annual after tax net cash flow. Incorporating only the Indicated Mineral Resource, the life of mine drops from 15 to 9 years, yet the increase in average annual grade - whilst maintaining a consistent capex and lower opex - results in an after tax NPV of $3.7BN. In addition, the 43% increase in Indicated Mineral Resource growth during 2017 demonstrates with closer spaced drilling, Arrow improves and optimizes mine production plans.

With these strong PFS results,  the Company is expediting Arrow to Feasibility by initiating a 2 stage 125,000m (10 rig) high density drilling program. This will be the largest drilling, geotechnical and hydrogeological focused program in the history of NexGen. Preparations are well underway with the program brought forward and scheduled to commence in early December 2018.

I would like to take the opportunity to congratulate the entire NexGen team, key consultants, local communities and Government departments for their outstanding commitment and execution of Arrow's development."

Conference Call

NexGen will host a conference call today, Monday November 5, 2018 at 11.00 AM Eastern Standard Time.

To join the call please dial (+1) 416 764 8688 (local/international) or (+1) 888 390 0546 (North America toll free) with passcode 49399985 and an operator will assist.

A recorded version of the proceedings will be available on NexGen's website ( shortly after the conference.  The playback numbers are (+1) 416 764 8677  (local/international) and (+1) 888 390 0541 (North America toll free) and the playback passcode is 399985 #.  The playback will be available until Tuesday, February 05, 2019.

Figure 1 – Arrow Mine Plan in relation to Inferred Resources (Long Section); Note: Red Arrows reference Inferred Resources not included in the PFS mine plan. (CNW Group/NexGen Energy Ltd.)

Table 2 – PFS Sensitivity to Uranium Price

Uranium Price ($ USD/lb U3O8)

After-Tax NPV8

After-Tax IRR

After-Tax Cash Pay Back

$80/lb U3O8

CAD $6.62 Billion


0.8 Years

$60/lb U3O8

CAD $4.65 Billion


1.0 Years

$50/lb U3O8

CAD $3.66 Billion


1.2 Years

$40/lb U3O8

CAD $2.67 Billion


1.5 Years

$30/lb U3O8

CAD $1.69 Billion


1.9 Years

$25/lb U3O8

CAD $1.19 Billion


2.3 Years


Figure 2 – Arrow Undiscounted Cumulative After-Tax Cash Flow (CNW Group/NexGen Energy Ltd.)

Key Updates of the 2018 PFS from the 2017 PEA

  • Reduction in CAPEX due to a reduced mine footprint as a result of higher head grades and also the reallocation of the underground tailings to operating costs. If the recently introduced PST is ignored for an apples-to-apples comparison on capital cost estimates from the PEA to the PFS, the PFS capital cost would be even lower.
  • 31% reduction in average annual OPEX to CAD $5.81/lb U3O8(from CAD $8.37/lb U3O8) despite the PFS recategorizing the underground tailings to OPEX instead of sustaining capital as per the PEA. These costs account for 21% of OPEX.
  • 43% increase in Indicated Mineral Resources from 179.5 M lb of U3O8 contained in 1.18 M tonnes grading 6.88% U3O8 from the March 2017 Mineral Resource estimate to 256.6 M lbs of U3O8 contained in 2.89 M tonnes grading 4.03% U3O8.
  • Average Annual Production increase from 18.5 M lbs U308 in the PEA to 25.4M lbs U308 due to higher head grades increasing from 1.73% U308 in the PEA to 3.09 % U3O8 in the PFS.
  • Average mining rate decrease from 1,448 tonnes per day to 1,039 tonnes per day.
  • Metallurgical pilot plant and bench scale testing optimized recovery resulting in increased total processing recovery rate to 97.6% versus 96.0% in the PEA.
  • Metallurgical process was updated resulting in ammonia being eliminated entirely from the process which strengthens the environmental performance of the envisioned Rook I Project.
  • Metallurgical paste-fill test work confirmed proof of concept for uranium tailings to be used for cemented paste backfill underground.
  • Lateral development reduced from 78,805 metres to 39,908 meters due to a reduced mine footprint.
  • Vertical development was reduced from 3,832 in the PEA to 3,059 due to the elimination of a fresh air raise which has been redesigned and combined with the primary production shaft.

Mineral Resources

The Arrow Deposit Mineral Resource estimate was updated, and the Indicated Mineral Resources form the basis for the PFS. The Indicated portion of the resource has increased by 43% from the previous resource estimate (see News Release dated: March 6, 2017).  The updated estimate comprises an Indicated Mineral Resource of 256.6 M lbs of U3O8 contained in 2.89 M tonnes grading 4.03% U3O8, including the A2 High Grade Core of 181.0 M lbs of U3O8 contained in 0.46 M tonnes grading 17.85% U3O8 and an Inferred Mineral Resource of 91.7 M lbs of U3O8 contained in 4.84 M tonnes grading 0.86% U3O8.

The tonnes, grades, and classification of the Mineral Reserves defined in the PFS mine design are summarized below in Table 4.

Table 3 - Arrow Mineral Resource Estimate

March 2017 Arrow Mineral Resource Estimate 

 2018 Arrow Mineral Resource Estimate 

 Diff. Between Arrow 2018 & 2017 Mineral Resource Estimate 


 Tonnage (Tonnes)

 Grade (U3O8%)



(U3O8 lb)

 Tonnage (Tonnes)

 Grade (U3O8%) 

 Metal U3O8 (U3O8 lb)

 Tonnage (Tonnes)

 Grade (U3O8%) 



(U3O8 lb)

 Indicated Mineral Resources 











 A2 HG 











 No Indicated in 2017 







 A3 HG 

 No Indicated in 2017 

















 Inferred Mineral Resources 





















 A2 HG 




















 A3 HG 
























 Combined into A3 & A4 

















CIM Definition Standards were followed for Mineral Resources, Mineral Resources are reported inclusive of Mineral Reserves.


Mineral Resources are reported at a cut-off grade of 0.25% U3O8 based on a long-term price of US$50 per lb U3O8 and estimated costs.


A minimum mining width of 1.0 m was used, with a Mineral Resource effective date of May 25th, 2018.


Numbers may not add due to rounding.


Mineral Resources that are not Mineral Reserves do not have demonstrated economics.


Mineral Reserves

The PFS defines Probable Mineral Reserves of 234.1 M lbs of U3O8 contained in 3.43 M tonnes grading 3.09% U3O8 from the Indicated Mineral Resources. The Probable Mineral Reserves include diluting materials and allowances for losses which may occur when material is mined.

Table 4 - Arrow Probable Mineral Reserves

Probable Mineral Reserves


Tonnage (Tonnes)

Grade (U3O8%)

Metal U3O8 (U3O8 lb)
















CIM definitions were followed for Mineral Reserves.


Mineral Reserves are reported with an effective date of May 25, 2018.


Mineral Reserves include transverse and longitudinal stopes, ore development, and incremental ore.


Stopes and ore development were estimated at a cut-off grade of 0.25% U3O8. 


Incremental ore is material between 0.03% U3O8 and 0.25% U3O8 that must be extracted to access mining areas.  0.03% U3O8 is the  limit for what is considered benign waste and material that must be treated and stockpiled in an engineered facility.


No by-product credits have been included in the Mineral Reserve statement.


Mineral Reserves are estimated using a long-term metal price of US$45 per pound U3O8, and a 0.75 US$/C$ exchange rate (C$1.00 = US$0.75). 


A minimum mining width of 3.0 m was applied for all longhole stopes.


The density varies according to the U3O8 grade in the block model.  Waste density is 2.464 t/m3


Numbers may not add due to rounding.


RPA is not aware of any environmental, permitting, legal, title, taxation, socio-economic, marketing, political, or other relevant factors that could materially affect the Mineral Resource or Mineral Reserve estimates.

Mine Plan and Production Profile

A detailed mine plan based on conventional long-hole stope mining was engineered using Indicated Mineral Resources only. Geotechnical studies during Pre-Feasibility supported the conventional longhole stoping mining method including the use of longitudinal and transverse stopes, 30 m level spacing, and the nominal stope strike length of 15 metres to 30 metres. This represents an excellent stope stability range for underground mining in highly competent conditions. The geometry of the Arrow Deposit enables decoupled production areas in both the A2 and A3, allowing flexibility of mine sequencing. The PFS production profile is underpinned by longhole stopes in the transverse orientation through A2 High Grade mineralization. Arcadis was engaged in the modeling and assessment of radiological effects of underground uranium mining, and they fully endorsed the proposed mining methods and overall plans. The ability to mine transverse longhole stopes through the A2 High Grade will support significant scheduling flexibility enabling NexGen to correlate supply quickly and inexpensively to market conditions. 

Furthermore, given the competency and conditions of the underground environment, all waste streams from the process plant are planned to be stored underground.

The PFS mine plan, using a 0.25% U3O8 cut-off grade, includes Probable Mineral Reserves consisting of 234.1 M lbs of U3O8 contained in 3.43 M tonnes grading 3.09% U3O8 that will be extracted by underground mining in an initial nine (9) year mine life.  The mine production schedule envisions a life of mine rate of 1,039 tonnes per day. The underground workings will be accessed by two shafts, the first supporting personnel movements, materials, ore, waste and fresh air. The production shaft will have divided compartments, ensuring that fresh air, and personnel entering the mine, remain isolated from ore being skipped to surface.  The second shaft will be used for exhaust air and secondary egress. Mining extraction is estimated to be 95% of mineralized tonnes for both ore development and stopes. Planned dilution was included in the generation of the stope shapes, and additional backfill dilution (at zero grade) was included where appropriate. Overall rock dilution is estimated to be 31%, with additional backfill dilution applied on secondary stopes only. Figure 3 below presents the annual mining schedule based on set assumptions.

Figure 3 – Arrow Deposit Production Profile (CNW Group/NexGen Energy Ltd.)

Figure 4 – Cross Section View of PFS Mine Design (CNW Group/NexGen Energy Ltd.)

Processing and Underground Tailings Management Facility ("UGTMF")

The PFS confirmed processing and production of Yellowcake from the Arrow Deposit with conventional processing technology. The main components of the processing plant are:

  • Grinding
  • Leaching
  • Liquid-Solid Separation via Counter Current Decantation
  • Solvent Extraction
  • Yellowcake Precipitation
  • Yellowcake Packaging
  • Paste Tailings Plant

A detailed metallurgical study resulted in process recovery increasing to 97.6% (versus 96% in the PEA). In addition, the ammonia strip process envisioned in the PEA was updated to an acid strip process in the PFS, resulting in the complete elimination of ammonia in the processing facility. Elimination of ammonia from the processing facility will ultimately lead to improved effluent discharge performance.

The Study also confirmed that all processed waste streams can be stored in an Underground Tailings Management Facility ("UGTMF"). The Study also confirmed the geotechnical design, size and sequencing of the UGTMF included in the PFS mine plan. The UGTMF will significantly reduce the surface footprint of the Project and represents continued and ongoing reclamation during operations, allowing for industry leading environmental sensitivity.  

PFS test work confirmed paste fill strength meets or exceeds all requirements set in the original design for a potential Paste-Backfill to be used for underground stope stability. The Study confirmed the suitability of the tailings from Arrow Uranium Deposit for use as cemented paste backfill.

NexGen is committed to advancing the Project with innovative approaches to mine design, management and operation in order to deliver enhanced environmental, social and economic performance.

Capital Costs

A capital cost estimate (Class 4 - AACE International classification guidelines) was produced for the PFS. The pre-production CAPEX for the contemplated underground mine, process plant and supporting infrastructure at Arrow are estimated at CAD $1.247 billion with sustaining capital costs of CAD $262 million (including $48 Million for decommissioning). Wood and RPA estimated the capital costs based on a three-dimensional civil model, a mechanical equipment list, material takeoffs, vendor budget quotations on major and secondary equipment, and inputs from leading expert service providers who have experience in construction projects and cost estimation both in the Athabasca Basin and globally. Pre-production construction is envisioned to be complete in three (3) years, the construction phase will be supported by a labour force consisting of skilled labour, trades people, professionals and administration. The Study determined the total personnel hours required for pre-production construction is 3,557,000 hours. The CAPEX is summarized below in Table 5.

Table 5 – Summary of Capital Cost Estimates

PEA 2017

PFS 2018

Capital Cost Estimates ($ CAD Millions)
















Process Plant, Infrastructure & Indirects
























Total Capital Costs









Notes on Variances

  • Mine - Reduced mining extents due to increase in mining head grades as a result using Indicated Resources only.
  • Process Plant, Infrastructure & Indirects -Tailings management costs re-allocated to operating costs.
  • Decommissioning - Higher resolution on decommissioning costs.
  • Contingency - Increased confidence level of cost estimates.

Operating Costs

The OPEX estimate outperformed the PEA and is based on a shaft-accessed underground mine with a conventional longitudinal and transverse long-hole stope mining method, conventional processing facility and underground processed waste management facility. While in operation the PFS defines a required workforce of 491 persons, the expertise required ranges from skilled labour, equipment operators, mining professionals, technical professional, management and administrative. NexGen's community-first approach ensures opportunities are prioritized within the local region. The OPEX is summarized below in Tables 6 and 8, and the per unit all-in sustaining cost is summarized in Table 7.

Table 6 – Unit Operating Cost Estimates

OPEX Per Pound

PEA $ CAD/lb U308

PFS $ CAD/lb U308




Mineral Processing



General and Administration



Total Operating Costs




Table 7 – PFS All-In Sustaining Cost Estimates ("AISC")


PFS $ CAD/lb U308

Operating Costs


Revenue Royalties




Reclamation Cost


Sustaining Capital





Table 8 – Per Tonne Operating Cost Estimates

OPEX Per Tonne






Mineral Processing



General and Administration



Total Operating Costs




Future Programs

  • As of September 30, 2018, the Company had $133 million in the treasury which fully funds NexGen for the the upcoming and planned programs.
  • Immediate initiation of a 10 rig diamond drilling 2 stage program of 125,000 m focusing on conversion of Arrow Indicated Mineral Resources to Measured of 70,000 m aimed at conversion of Inferred to Indicated Mineral Resources; and 55,000 m to enable additional optimisation of mine production plans.
  • Continued UGTMF study to optimise tailings density and further reduce tailings volume.
  • The capital costs associated with the process plant and associated infrastructure will now undergo an evaluation to review opportunities for capital cost optimization.
  • Project schedule and timeline are also being reviewed to identify opportunities to advance the development.
  • Automation and electric mining equipment continue to evolve rapidly, and opportunities for inclusion are currently being pursued.
  • Detailed evaluation of alternative energy solutions which will further offset electricity costs and support NexGen's environmental initiatives.

About NexGen

NexGen is a British Columbia corporation with a focus on the acquisition, exploration and development of Canadian uranium projects. NexGen has a highly experienced team of uranium industry professionals with a successful track record in the discovery of uranium deposits and in developing projects through discovery to production.  NexGen owns a portfolio of prospective uranium exploration assets in the Athabasca Basin, Saskatchewan, Canada, including a 100% interest in Rook I, location of the Arrow Deposit in February 2014, the Bow discovery in March 2015, the Harpoon discovery in August 2016 and the Arrow South discovery in July 2017.

Technical Disclosure

The technical information in this news release with respect to the PFS has been reviewed and approved by Paul O'Hara, P.Eng. of Wood., David Robson, P.Eng., M.B.A., and Jason Cox, P.Eng. of RPA, each of whom is a "qualified person" under National Instrument 43-101 – Standards of Disclosure for Mineral Projects ("NI-43-101"). 

The Mineral Resource Estimate was completed by Mr. Mark Mathisen, C.P.G., Senior Geologist at RPA and Mr. David Ross, P.Geo., Director of Resource Estimation and Principal Geologist at RPA.  Both are independent Qualified Persons in accordance with the requirements of National Instrument (NI) 43-101 and they have approved the disclosure herein. All other technical information in this news release has been approved by Mr. Troy Boisjoli, Geoscientist Licensee, Vice President – Operations & Project Development for NexGen.  Mr. Boisjoli is a qualified person for the purposes of NI 43-101 and has verified the sampling, analytical, and test data underlying the information or opinions contained herein by reviewing original data certificates and monitoring all of the data collection protocols.

A technical report in respect of the PFS will be filed on SEDAR ( and EDGAR ( within 45 days of this news release.

SEC Standards

Estimates of mineralization and other technical information included or referenced in this news release have been prepared in accordance with NI 43-101. The definitions of proven and probable mineral reserves used in NI 43-101 differ from the definitions in SEC Industry Guide 7. Under SEC Industry Guide 7 standards, a "final" or "bankable" feasibility study is required to report reserves, the three-year historical average price is used in any reserve or cash flow analysis to designate reserves and the primary environmental analysis or report must be filed with the appropriate governmental authority. As a result, the reserves reported by the Company in accordance with NI 43-101 may not qualify as "reserves" under SEC standards. In addition, the terms "mineral resource", "measured mineral resource", "indicated mineral resource" and "inferred mineral resource" are defined in and required to be disclosed by NI 43-101; however, these terms are not defined terms under SEC Industry Guide 7 and normally are not permitted to be used in reports and registration statements filed with the SEC. Mineral resources that are not mineral reserves do not have demonstrated economic viability. Investors are cautioned not to assume that any part or all of the mineral deposits in these categories will ever be converted into reserves. "Inferred mineral resources" have a great amount of uncertainty as to their existence, and great uncertainty as to their economic and legal feasibility. It cannot be assumed that all or any part of an inferred mineral resource will ever be upgraded to a higher category. Under Canadian securities laws, estimates of inferred mineral resources may not form the basis of feasibility or pre-feasibility studies, except in rare cases. Additionally, disclosure of "contained pounds" in a resource is permitted disclosure under Canadian securities laws; however, the SEC normally only permits issuers to report mineralization that does not constitute "reserves" by SEC standards as in place tonnage and grade without reference to unit measurements. Accordingly, information contained or referenced in this news release containing descriptions of the Company's mineral deposits may not be comparable to similar information made public by U.S. companies subject to the reporting and disclosure requirements of United States federal securities laws and the rules and regulations thereunder.

Technical Information

For details of the Rook I Project including the quality assurance program and quality control measures applied and key assumptions, parameters and methods used to estimate the Mineral Resource please refer to the technical report entitled "Technical Report on the Preliminary Economic Assessment of the Arrow Deposit, Rook 1 Property, Province of Saskatchewan, Canada" dated effective September 1, 2017 (the "Rook 1 Technical Report") prepared by Jason J. Cox, P.Eng., David M. Robson, P.Eng., M.B.A., Mark B. Mathisen, C.P.G., David A. Ross M.Sc., P.Geo., Val Coetzee, M.Eng., Pr.Eng., and Mark Wittrup, M.Sc., P.Eng.,P.Geo. each of whom is a "qualified person" under NI 43-101. The Rook I Technical Report is available for review under the Company's profile on SEDAR at A technical report in respect of the PFS will be filed on SEDAR ( and EDGAR ( within 45 days of this news release providing details of the Rook I Project including the quality assurance program and quality control measures applied and key assumptions, parameters and methods used to estimate the Mineral Resource.

Forward-Looking Information

The information contained herein contains "forward-looking statements" within the meaning of the United States Private Securities Litigation Reform Act of 1995 and "forward-looking information" within the meaning of applicable Canadian securities legislation. "Forward-looking information" includes, but is not limited to, statements with respect to the activities, events or developments that the Company expects or anticipates will or may occur in the future. Generally, but not always, forward-looking information and statements can be identified by the use of words such as "plans", "expects", "is expected", "budget", "scheduled", "estimates", "forecasts", "intends", "anticipates", or "believes" or the negative connotation thereof or variations of such words and phrases or state that certain actions, events or results "may", "could", "would", "might" or "will be taken", "occur" or "be achieved" or the negative connotation thereof.

Forward-looking information and statements are 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 and statements are made based upon numerous assumptions, including among others, that the proposed transaction will be completed, the results of planned exploration activities are as anticipated, the price of uranium, the cost of planned exploration activities, that financing will be available if and when needed and on reasonable terms, 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 and that general business and economic conditions will not change in a material adverse manner. Although the assumptions made by the Company in providing forward looking information or making forward looking statements are considered reasonable by management at the time, there can be no assurance that such assumptions will prove to be accurate.

Forward-looking information and statements also involve known and unknown risks and uncertainties and other factors, which may cause actual results, performances and achievements of NexGen to differ materially from any projections of results, performances and achievements of NexGen expressed or implied by such forward-looking information or statements, including, among others, negative operating cash flow and dependence on third party financing, uncertainty of the availability of additional financing, the risk that pending assay results will not confirm previously announced preliminary results, imprecision of mineral resource estimates, the appeal of alternate sources of energy and sustained low uranium prices, aboriginal title and consultation issues, exploration risks, reliance upon key management and other personnel, deficiencies in the Company's title to its properties, uninsurable risks, failure to manage conflicts of interest, failure to obtain or maintain required permits and licenses, changes in laws, regulations and policy, competition for resources and financing, and other factors discussed or referred to in the Company's Annual Information Form dated March 31, 2017 under "Risk Factors".

Although the Company has attempted to identify important factors that could cause actual results to differ materially from those contained in the forward-looking information or implied by forward-looking information, there may be other factors that cause results not to be as anticipated, estimated or intended.

There can be no assurance that forward-looking information and statements will prove to be accurate, as actual results and future events could differ materially from those anticipated, estimated or intended. Accordingly, readers should not place undue reliance on forward-looking statements or information. The Company undertakes no obligation to update or reissue forward-looking information as a result of new information or events except as required by applicable securities laws.

NexGen Energy Ltd. (CNW Group/NexGen Energy Ltd.)

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Leigh Curyer, Chief Executive Officer, NexGen Energy Ltd., +1 604 428 4112,,; Travis McPherson, Vice President Corporate Development, NexGen Energy Ltd., +1 604 428 4112,,; For Media Inquiries: Jonathan Goldberg, KCSA Strategic Communications, +1 212 896 1282, jgoldberg@kcsa.comCopyright CNW Group 2018

April 29, 2019 NexGen Announces the Commencement of an Environmental Assessment for the Rook I Project
March 28, 2019 NexGen Intersects Continuous and Strong High-Grade Mineralization in all of the Initial A2 Sub-Zone Targets from Feasibility Stage Drilling
March 21, 2019 NexGen Announces Appointment of Brad Wall, the Former Premier of Saskatchewan, to its Board of Directors
February 14, 2019 NexGen Releases Results from Shaft Pilot Hole Report and Assays from the Development Drilling Summer 2018 Program
January 21, 2019 NexGen Commences 125,000 m Feasibility Stage Drilling Program and Technical Studies at the Arrow Deposit
December 20, 2018 NexGen Announces Filing of NI 43-101 Technical Report for the Pre-Feasibility Study on the Arrow Deposit, Rook I Project
November 22, 2018 Nexgen Releases Project Development-focused Summer 2018 Drilling Results – Hole Summaries
November 22, 2018 NexGen Releases Project Development-Focused Summer 2018 Drilling Results
November 15, 2018 NexGen Honoured to Receive the PDAC's 2019 Environmental and Social Responsibility Award
November 5, 2018 NexGen Announces 64% Increase in Average Annual After-tax Cash Flow in Pre-Feasibility Study, After Tax NPV of $3.7BN, 43% Increase in Indicated Resources, and Initiates the Largest Drill Campaign in Company's History to Expedite Arrow to Feasibility
August 27, 2018 NexGen Energy Appoints Sybil Veenman and Karri Howlett to Board of Directors
July 9, 2018 NexGen's Winter Assays Confirm Uranium Mineralization in Newly Discovered Areas of the A0 Shear, 160 m Northwest and Northeast Along Strike from the A1 and A2 Shears, and Strong Continuity From Infill Drilling at Arrow Deposit
June 21, 2018 NexGen Commences Summer Drilling Program at Arrow
June 13, 2018 NexGen Announces Positive Results from Arrow Project Studies
June 11, 2018 NexGen Announces Voting Results from Annual Meeting of Shareholders
June 4, 2018 Independent Proxy Advisory Firms, ISS and Glass Lewis Recommend NexGen Shareholders Vote For All Proposed Items at Annual Meeting
May 2, 2018 NexGen Makes Significant New Discoveries of Near Arrow Mineralization Northwest and Along Strike in Winter Drill Campaign
April 13, 2018 NexGen Announces Senior Management Departures
March 6, 2018 NexGen Appoints James Hatley, P.Eng. as Senior Vice President
January 29, 2018 NexGen Commences Winter Drill Program At Rook I
January 17, 2018 NexGen Confirms Strong Uranium Mineralization to the Northwest of the A1 Shear and Outside the A3 High Grade Domain
January 15, 2018 NexGen Confirms Multiple Broad Zones of Mineralization at South Arrow
December 12, 2017 NexGen Announces Resignation of Director
December 11, 2017 Assays Demonstrate Strong Continuity in A3 Shear and Along Strike at the Arrow Deposit
November 30, 2017 NexGen Concludes Highly Successful Summer Development & Exploration Drilling
November 30, 2017 NexGen Concludes Highly Successful Summer Development & Exploration Drilling – Drill Hole Summaries
November 13, 2017 NexGen Appoints Bruce Sprague and Shawn Harriman
October 18, 2017 NexGen Drills Massive Pitchblende at South Arrow
October 2, 2017 NexGen Drills Most Off-Scale to Date in A3 Shear and Expands Arrow with Extensive Zones of Mineralization Across Key Growth Areas
September 15, 2017 NexGen Announces Filing of NI 43-101 Technical Report for the PEA on the Arrow Deposit, Rook I Project
September 11, 2017 NexGen Acquires Remaining 40% Interest in the Dufferin Lake Property
July 31, 2017 NexGen Announces Maiden Preliminary Economic Assessment of the Arrow Deposit
July 27, 2017 NexGen Makes New Discovery 400 m South of Arrow
July 25, 2017 Final Winter Assays Confirm High Grade Uranium Mineralization in Step-Out Drilling at Arrow
July 21, 2017 NexGen Closes US$110 Million Financing with CEF Holdings and Appoints Warren Gilman to Board of Directors
July 12, 2017 NexGen Announces Commencement of Summer Program and Assay Results from Winter 2017 Drilling
June 30, 2017 NexGen Announces Additional US$110 Million Financing with CEF Holdings
June 9, 2017 NexGen Announces Voting Results from Annual General Meeting
June 7, 2017 Step-Out Drilling Expands the Arrow Deposit Area of Mineralization
May 11, 2017 NexGen to Commence Trading on NYSE MKT
April 27, 2017 NexGen Announces Initiation of Maiden Preliminary Economic Assessment and Off-Scale Mineralization in the 180m Southwest Gap
April 24, 2017 NexGen Adopts New Shareholder Rights Plan
April 18, 2017 Significant Northeast Expansion and Massive Pitchblende Discovered in the A3 at Arrow
March 31, 2017 NexGen Announces Filing of NI 43-101 Technical Report on its Rook I Project
March 23, 2017 NexGen Returns 13.5 m at 3.94% U3O8 including 2.5 m at 20.90% at Harpoon
March 6, 2017 NexGen Announces Updated Mineral Resource Estimate for the Arrow Deposit
February 23, 2017 NexGen Significantly Extends Mineralization in the A2 and A3 Shears to the Northeast
January 23, 2017 NexGen Commences 35,000 m Winter Drill Program at Rook I
December 20, 2016 NexGen Returns 30.0 m at 15.07% U3O8 including 6.0 m at 51.97% U3O8 which included 2.0 m at 68.20% U3O8 at Arrow
December 14, 2016 NexGen Returns Multiple High Grade Intersections at Arrow
November 18, 2016 NexGen Intersects Widespread Mineralization at Arrow
November 18, 2016 NexGen Intersects Widespread Mineralization at Arrow - Drill Hole Summaries
November 9, 2016 NexGen Appoints Dr. Mark O'Dea to Board of Directors
November 8, 2016 NexGen Returns 26.5 m at 20.27% U3O8 including 10.0 m at 51.40% U3O8 in Best Scissor Hole to Date at Arrow
November 2, 2016 NexGen Expands A2 High Grade Domain to Northeast and Intersects Strong Mineralization Between Arrow and 180 m Southwest Area
October 26, 2016 NexGen Reports Positive Metallurgical Results for the Arrow Deposit
October 3, 2016 NexGen Assays at Arrow return holes with 5 continuous GTs greater than 100 inside and outside the A2 High Grade Domain
September 28, 2016 Rapid Expansion Continues at the Arrow Deposit with Strong Off-Scale Returned in the A1, A2 and A3 Shears
September 12, 2016 NexGen Announces Director Resignation
September 7, 2016 NexGen Affiliate IsoEnergy Ltd. Enters into Amalgamation Agreement with AireSurf Networks Holdings Inc.
September 6, 2016 NexGen Energy Ltd. - Scissor Drilling at Arrow Intersects Substantial Off-Scale in the Higher Grade A2 Sub-Zone and the A1 Shear
August 23, 2016 NexGen Energy Ltd. - Drilling 180 m Southwest of Arrow Returns 10.0 m at 10.33% U3O8 and 5.0 m at 14.35% U3O8
August 11, 2016 NexGen Makes New High Grade Discovery 4.7 km Northeast of the Arrow Deposit
August 8, 2016 NexGen Energy Ltd. - Scissor Hole AR-16-91c2 Returns 40.5 m at 12.69% U3O8 Including 25.0 m at 19.97% U3O8 and 1.5 m at 63.93% U3O8
July 27, 2016 NexGen Discovers New High-Grade A5 Shear Zone at Arrow
July 21, 2016 NexGen Energy Ltd. - Assays Confirm New High Grade Discovery in the A1 Shear and the Cannon Area Returns Anomalous Uranium
July 19, 2016 NexGen Energy Ltd. - Hole AR-16-81c3 Returns 23.0 m at 17.19% U3O8 including 5.0 m at 49.27% U3O8 including High Grade Gold at the Arrow Deposit
July 14, 2016 NexGen Announces Graduation to TSX
July 13, 2016 NexGen Significantly Expands New High Grade Zone in A1 Shear and Drills Extensive Off-Scale Across A2 Shear
July 11, 2016 NexGen Commences 35,000 m Summer Drill Program at Rook I and Advances Project Development Activities
June 27, 2016 NexGen Announces Appointment of Technical and Development Personnel
June 21, 2016 NexGen Energy Ltd. - Hole AR-16-78c4 Assay Returns 37.5 m at 17.60% U3O8 including 5.5 m at 60.14% U3O8
June 16, 2016 Arrow Scissor Hole AR-16-91c2 Intersects 22.4 m of Off-Scale Radioactivity
June 13, 2016 NexGen Intersects Massive Pitchblende 180m Southwest of Arrow
June 10, 2016 NexGen Closes US$60 Million Strategic Investment by CEF Holdings
June 8, 2016 NexGen Announces Appointment of Charles Scorer as Special Advisor Uranium Marketing
June 7, 2016 NexGen Energy Announces Results of Annual and Special Meeting of Shareholders
June 6, 2016 NexGen Energy Ltd. - Hole AR-16-76c3 Returns 50.0 m at 15.05% U3O8 including 11.5 m at 49.53% U3O8
June 2, 2016 NexGen Announces US$60 Million Strategic Investment by CEF Holdings
May 19, 2016 NexGen Drills Off-Scale in All Four Shears at the Arrow Deposit
May 5, 2016 NexGen Energy Ltd. - Hole AR-16-76c1 Returns 67.5 m at 11.29% U3O8 including 9.0 m at 51.35% U3O8 and 0.5 m at 79.80% U3O8
April 18, 2016 NexGen Drills 37.4 m of Off-Scale Expanding the High Grade Domain and Discovers Anomalous Radioactivity 1.3 km Northeast of Arrow
April 14, 2016 NexGen Announces Filing of NI 43-101 Technical Report on its Rook I Project
April 14, 2016 NexGen Discovers New High Grade Zone in the A1 Shear with 8.35 m of Off-Scale Mineralization
April 4, 2016 NexGen to Drill Continuously Throughout Spring Break-Up at Arrow and Commences Construction on All-Season Rook I Access Road
March 30, 2016 NexGen Intersects Off-Scale Mineralization 180m Southwest of Arrow Deposit and the A2 High Grade Domain Continues to Expand
March 15, 2016 Step Out Drilling 170m to the Southwest of Arrow Intersects Mineralization Extending Strike Length to 840m - A2 Sub Zone Infill Program Continues to Intersect Intense Radioactivity
March 8, 2016 Hole AR-16-63c2 Returns a Total Composite GT of 1,329 and Expands Higher Grade A2 Sub-Zone
March 3, 2016 Amended and Restated News Release - NexGen Announces Maiden Mineral Resource Estimate for the Arrow Deposit of 201.9 M lbs at 2.63% U3O8
March 3, 2016 NexGen Announces Maiden Mineral Resource Estimate for the Arrow Deposit of 201.9 M lbs at 2.63% U3O8
February 23, 2016 The Higher Grade A2 Sub-Zone Returns Intense Radioactivity and Strike Length of Arrow Zone Extended to 670m
February 9, 2016 NexGen Drills Most Intense Mineralization to Date at Arrow
February 2, 2016 First Holes from Winter 2016 Drilling Return Strongest Radioactivity Results to Date at Arrow
January 13, 2016 Hole AR-15-62 Returns Best Assay Result to Date at Arrow Zone with 78.0m at 10.00% U3O8 including 12m at 38.29% U3O8
January 11, 2016 NexGen Returns Strongest Assay to Date in the A3 Shear with 10.5m at 8.52% U3O8 and 37.0m at 6.30% U3O8
January 7, 2016 NexGen Commences Largest Drill Program at Arrow and Expands Site Infrastructure at Rook I
January 5, 2016 NexGen Returns 36.5m at 10.11% U3O8 including 3.5m at 52.33% U3O8 on the Currently Defined Southwest Extent of the Higher Grade A2 Sub-Zone
December 16, 2015 NexGen Energy Ltd. - Corporate Update
December 9, 2015 NexGen Closes $21 Million Bought Deal Financing
November 30, 2015 NexGen Significantly Expands Strike Length of Higher Grade A2 Sub-Zone with AR-15-57c3 intersecting 5.0m at 49.60% U3O8 Within 31.5m at 10.03% U3O8
November 18, 2015 NexGen Energy Ltd. Announces $20 Million Bought Deal Financing
November 3, 2015 Hole AR-15-54c1 Returns 27.5m at 10.09% U3O8 Including 12.0m at 20.01% U3O8 and 2.5m at 51.16% U3O8 Within the Higher Grade A2 Sub-Zone
October 29, 2015 NexGen Drills 30.35 m of Off-Scale in AR-15-62 in the Higher Grade A2 Sub-Zone and in AR-15-61c2 Drills 21.2 m Off-Scale in the A3 Shear
October 22, 2015 Hole AR-15-58c1 Returns Highest Grade Assays to Date at Arrow with 11.0m at 30.61% U3O8 Including 3.0m at 72.02% U3O8 and 0.5m at 80.52% U3O8
October 13, 2015 NexGen Expands Higher Grade A2 Sub-Zone and Encounters Significant Off-Scale Radioactivity in Multiple Drill Holes
September 22, 2015 NexGen Drills 27.85 m of Off-Scale in AR-15-58c1 and Discovers New High-Grade A4 Shear Zone
September 8, 2015 NexGen Assays Return 50.0m at 12.01% U3O8 Including 18.0m at 20.55% U3O8 in Hole AR-15-49c2
August 26, 2015 NexGen Drills Off-Scale in all Six New Holes within the 210 m step out from AR-15-44b and Expands Summer Program to 30,000 m
August 25, 2015 NexGen Energy Begins Trading on OTCQX
August 5, 2015 Arrow Zone's High Grade A2 and A3 Cores Extended 210m to the Southwest with Significant Step Outs returning Off-Scale Radioactivity
July 16, 2015 NexGen Drills Intensive Radioactivity at Arrow - Rapid Expansion in the A2 and A3 High Grade Shears
July 9, 2015 NexGen Closes Debt Conversion
June 30, 2015 NexGen Energy Ltd. - Final Assays from the Winter 2015 Program - Additional High Grade Uranium Mineralization Confirmed at Arrow and Bow
June 29, 2015 NexGen Energy Converts Loan to Shares
June 15, 2015 NexGen Intersects 56.5m at 11.55% U3O8 including 20.0m at 20.68% U3O8 in hole AR-15-44b
June 9, 2015 NexGen Closes Debt Conversion
June 8, 2015 NexGen Commences 25,000m Summer Drilling Program at Arrow Zone
May 28, 2015 NexGen Energy Ltd. Closes $3,561,000 Over-Allotment Option
May 27, 2015 NexGen Releases Further Assays From Winter 2015 Program and Confirms Broad High-Grade Mineralization in the A2 and A3 Shears at Arrow
May 26, 2015 NexGen Energy Ltd. Closes $23,740,000 Bought Deal Financing
May 5, 2015 NexGen Announces Increase in Previously Announced Bought Deal Financing to $23,740,000
May 4, 2015 NexGen Announces $20 Million Bought Deal Financing
April 29, 2015 NexGen Energy Ltd. - AR-15-45b returns highest total composite mineralization of 226.0m to date at Arrow
April 23, 2015 NexGen Drills 40.45m Off-Scale within 190.7m of Total Composite Mineralization at the Arrow Zone
April 16, 2015 NexGen Adopts Advance Notice Policy
April 13, 2015 NexGen Energy Ltd. - Drilling at Bow Discovery Increases Anomalous Radioactivity from 66 m to 350 m Strike Length
April 13, 2015 Drilling at Bow Discovery Increases Anomalous Radioactivity from 66 m to 350 m Strike Length
March 31, 2015 NexGen Discovers Off-Scale Radioactivity at Radon Anomaly 3.7 km Northeast from Arrow
March 23, 2015 NexGen Significantly Expands High Grade Mineralization within A2 and A3 at the Arrow Zone with Best Angled Hole to Date
March 19, 2015 Assays from Drill Holes AR-15-37 & 38 Delineate Additional High Grade Mineralization Over 88m of Strike Extent in the A2 Shear at Arrow Zone
March 17, 2015 NexGen Reports First Assays From Winter Program: Drills Most Continuous High-Grade Uranium Intercept over 2% U3O8 in the A2 Shear at the Arrow Zone
February 24, 2015 NexGen Drills Best Angled Hole to Date; Discovers New High Grade Zone at Arrow
February 17, 2015 NexGen Step-Out Extends AR-14-30 High Grade Mineralization by 81 meters to the Southwest
February 12, 2015 NexGen Energy Named to 2015 TSX Venture 50
January 28, 2015 Ground gravity identifies additional High Priority Drill Targets at Rook I
January 27, 2015 Rapid Expansion of Arrow Continues with Significant Intercepts of Uranium Mineralization
January 20, 2015 Strong Radon Anomalies Yield High Priority Drill Target Zone 400m Northeast along Strike from the Arrow Zone
January 5, 2015 NexGen has commenced 18,000m drilling program at the Arrow High-Grade Uranium Zone
December 24, 2014 Arrow Zone Returns Strong U3O8 Assays Over Continuous Intervals
December 3, 2014 NexGen Exploration Update and Plans for 18,000 Meter Winter Drill Program
November 12, 2014 NexGen Energy Ltd. Closes $11.5 Million Bought Deal Financing including over-allotment
October 8, 2014 Supreme Court of British Columbia dismisses Alpha Exploration Inc action against NexGen and Garrett Ainsworth
October 7, 2014 NexGen Energy Ltd. Announces $10 Million Bought Deal Private Placement of Flow-Through Shares
October 6, 2014 NexGen Intersects 46 meters at 10.32% U3O8 in AR-14-30
September 17, 2014 NexGen Drills 123.90 m Total Composite Mineralization Including 10.13 m of Total Composite Off-scale at the Arrow Zone
September 3, 2014 Drilling Continues to Return Significant Intervals of Mineralization at the Arrow Zone
August 26, 2014 NexGen Drills Record Total Composite Off-Scale of 53.85 m, within Total Composite Mineralization of 186.90 m at the Arrow Zone
August 20, 2014 The Arrow Zone Broadens with Continued Significant Intercepts of Uranium Mineralization
August 7, 2014 NexGen Hits 22.35 m at 3.42% U3O8 in AR-14-15 Including 4.5 m at 15.74% U3O8 at the Arrow Discovery
August 5, 2014 NexGen Drills Strongest and Shallowest Mineralization to Date at the Arrow Discovery
July 17, 2014 NexGen and Garrett Ainsworth file response to Civil Claim initiated by Alpha Exploration Ltd
July 7, 2014 NexGen More Than Doubles Mineralized Strike Length From 215 to 470 Meters at the Arrow Discovery
June 3, 2014 NexGen appoints new Vice President of Exploration and establishment of Technical Committee
June 2, 2014 NexGen announces assays confirm multiple high-grade zones of uranium mineralization at Arrow, Rook 1
May 29, 2014 NexGen commences summer drilling program at Arrow, Rook I
May 23, 2014 NexGen Announces Results of Annual General & Special Meeting
April 30, 2014 NexGen identifies additional geophysical anomaly targets at Arrow Discovery Zone.
April 29, 2014 NexGen identifies additional geophysical anomaly targets at Arrow Discovery Zone
April 25, 2014 NexGen Energy Ltd. Enters into Agreement to Acquire Mineral Claims in Athabasca Basin
April 24, 2014 NexGen Energy Ltd. Enters Into Agreement To Acquire Mineral Claims In Athabasca Basin
April 23, 2014 NexGen Energy Ltd. Adopts Shareholder Rights Plan
April 22, 2014 NexGen Energy Ltd. Adopts Shareholder Rights Plan
March 31, 2014 NexGen Drills Best Hole To Date at Arrow. RK-14-30 Intersects Numerous Zones of Mineralization Totalling 47.2 Meters
March 13, 2014 NexGen Extends Arrow Discovery Zone. Second Hole Intersects Several Highly Anomalous Radioactive Zones, Rook I West, SW Athabasca Basin
March 10, 2014 NexGen Energy Ltd. Announces Filing of Preliminary Short Form Prospectus
March 4, 2014 NexGen Energy Announces $10 Million Bought Deal
February 24, 2014 NexGen Energy Completes First Hole at Arrow Prospect; Intersects Additional Zones of Highly Anomalous Radioactivity, Rook I West, SW Athabasca Basin
February 19, 2014 NexGen Drills 26.2 meters of Highly Anomalous Radioactivity on First Hole at Arrow, Rook I, SW Athabasca Basin
January 20, 2014 NexGen Commences 6,000-Meter Winter Drilling Program at Rook I Project, Western Athabasca Basin, Saskatchewan
January 16, 2014 NexGen Energy Ltd.: Radio Option Agreement Extension
January 9, 2014 NexGen Energy Ltd.: Assays Confirm Uranium Mineralisation in 3 holes at Rook I
December 18, 2013 NexGen Energy Ltd. Announces Increase to Brokered Private Placement
December 10, 2013 NexGen Energy Announces Private Placement of C$2.5 Million Flow-Through Common Shares
December 2, 2013 NexGen Energy Ltd.: Rook I Aerial Survey Identifies 5 Zones of Elevated U-Channel Radiometrics
October 16, 2013 NexGen Drills 3 Mineralized Holes at Rook I from 11 Highly Altered Holes Along Strike from PLS
September 25, 2013 NexGen Energy Ltd.: Rook 1 Drilling Update
August 30, 2013 NexGen Energy Ltd. Announces Closing of $5 Million Non-Brokered Private Placement
August 16, 2013 NexGen Commences 3,000m Drill Program at Rook I Project, Immediately Adjacent to Patterson Lake South Discovery
August 15, 2013 NexGen Energy Ltd. Announces Third and Final Increase of Size in Financing to $5M
August 14, 2013 NexGen Energy Ltd. Announces Second Increase of Size in Financing
August 1, 2013 NexGen Energy Ltd. Doubles Size of Non-Brokered Private Placement
July 30, 2013 NexGen Energy Completes Summer Drilling at Radio
July 29, 2013 NexGen Energy Announces Non-Brokered Private Placement of Up to C$1.8 Million
July 24, 2013 NexGen Energy Completes Ground DC Resistivity Survey, Doubles Size of Drill Program at its 100% Owned Rook 1 Project
July 19, 2013 NexGen Energy Ltd. Announces Completion of Share Issuance to Radio Optionors
June 26, 2013 NexGen Energy Ltd. Announces Letter Agreement with Radio Optionors to Issue Shares to Settle Remaining $2.9M Cash Obligation
June 20, 2013 NexGen Commences Drilling at Radio Project, Eastern Athabasca Basin, Saskatchewan
June 5, 2013 NexGen's Joint Venture Partner, Forum Uranium Corp. Reports Wide Zone of Continuous, Shallow Uranium Mineralization at Otis West, Northwest Athabasca Project
May 31, 2013 NexGen Announces Appointment of Chief Financial Officer
May 22, 2013 NexGen Energy Hires Senior and Exploration Geologists
May 15, 2013 NexGen Energy Ltd.: Corporate Update On Its Planned Summer Exploration Activities at Radio, Rook I and South-West Athabasca Basin Margin Properties
May 9, 2013 Northwest Athabasca Joint Venture: NexGen's Joint Venture Partner Forum Uranium Corp, Reports Drill Results of 1.34% U3O8 Over 3 Metres From Shallow Depths at Zone A
April 23, 2013 NexGen begins trading on the TSX-V Exchange under the symbol "NXE"
March 26, 2013 NexGen Energy Ltd. Closes $11.5 Million Through Bought Deal Financing
January 2, 2013 NexGen Energy Ltd. Closes Private Placement of Subscription Receipts and Flow-Through Common Shares