NexGen Intersects Off-Scale Mineralization 180m Southwest of Arrow Deposit and the A2 High Grade Domain Continues to Expand

 

VANCOUVER, March 30, 2016 /CNW/ - NexGen Energy Ltd. ("NexGen" or the "Company") (TSXV:NXE, OTCQX:NXGEF) is pleased to announce results from eight angled holes from our on-going winter drilling program on our 100% owned Rook I Property, Athabasca Basin, Saskatchewan.

Step-out drilling 180 m southwest along strike from the Arrow Deposit has intersected extensive mineralization including off-scale radioactivity (>10,000 cps).  Hole AR-16-77c2 (see Figure 1), a follow up from hole AR-16-75 (see News Release dated March 15, 2016), intersected 109.5 m of total composite mineralization, including 2.3 m of off-scale radioactivity and encountered local concentrations of semi-massive pitchblende associated with extensive dravite alteration southwest along strike from the A4 shear, within an area that is untested. This newly discovered mineralized area will be the focus of immediate follow-up drilling.  The footprint of Arrow has extended along strike by an additional 25 m to 865 m and laterally by 40 m to 275 m.

Additionally, drill holes in the area of the higher grade A2 sub-zone (the "Sub-Zone") have continued to intersect intense uranium mineralization. Infill hole AR-16-76c3 and step-out hole AR-16-76c4 both intersected intense and widespread radioactivity in the Sub-Zone.  Hole AR-16-76c4 represents an approximate 25 m down-dip expansion from the current A2 High Grade Domain, which has been defined by 26 drill holes and comprises an Inferred Mineral Resource estimate of 120.5 M lbs of U3O8 contained in 0.41 M tonnes of mineralization grading 13.26% U3O8.  The A2 High Grade Domain is within the Arrow Deposit, which has a total Inferred Mineral Resource estimate of 201.9 M lbs of U3O8 contained in 3.48 M tonnes of mineralization grading 2.63% U3O8.   

Highlights:

Southwest Extension:

  • AR-16-77c2 (180 m southwest step-out) intersected 109.5 m of total composite mineralization including 2.3 m of total composite off-scale radioactivity (>10,000 – 50,000 cps) within a 163.5 m section (615.5 to 779.0 m).

A2 Shear:

  • AR-16-76c3 (58 m up-dip and southwest from AR-15-44b) intersected 67.5 m of total composite mineralization including 24.35 m of total composite off-scale radioactivity (10,000 - >61,000 cps) within a 124.5 m section (470.5 to 595.0 m) in the Sub-Zone.   
  • AR-16-76c4 (81 m down-dip and southwest of AR-15-44b) intersected 105.7 m of total composite mineralization including 20.85 m of total composite off-scale radioactivity (10,000 - >61,000 cps) within 171.5 m section (494.0 to 665.5 m) in the Sub-Zone.   

 

Table 1: Higher Grade A2 Sub-Zone Drill Hole Comparison

2015

AR-15-59c22

AR-15-

54c12

AR-15-58c12

AR-15-622

AR-15-44b2

AR-15-49c22

AR-15-57c32






Total composite mineralization =

75.50 m

42.00 m

86.00 m

143.00 m

135.60 m

73.50 m

62.50 m






Total Off-scale (>10,000 to 29,999 cps)3 =

11.40 m

5.90 m

14.30 m

17.75 m

30.25 m

15.70 m

4.40 m






Total Off-scale (>30,000 to 60,999 cps)3 =

4.50 m

3.00 m

3.85 m

10.60 m

7.75 m

5.20 m

2.50 m






Total Off-scale (>61,000 cps)3 =

1.00 m

0.50 m

2.00 m

2.00 m

1.50 m

2.15 m

1.80 m






Continuous GT (Grade x Thickness) =

371

277

200 and

345

787

655

605

319
























2016

AR-16-

76c4

AR-16-

76c11

AR-16-

76c3

AR-16-63c12

AR-16-63c31

AR-16-74c11

AR-16-63c22

AR-16-64c31

AR-16-64c22

AR-16-64c12

AR-16-78c11


Total composite mineralization =

105.7 m

73.50 m

67.5 m

55.50 m

147.00 m

88.00 m

138.00 m

102.00 m

76.00 m

74.0 m

64.00 m


Total Off-scale (>10,000 to 29,999 cps)3 =

19.85 m

14.75 m

14.85 m

6.85 m

22.10 m

21.2 m

17.10 m

18.75 m

15.95 m

10.30 m

11.60 m


Total Off-scale (>30,000 to 60,999 cps)3 =

1.00 m

2.75 m

5.00 m

0.50 m

3.00 m

1.15 m

9.90 m

2.50 m

4.70 m

3.70 m

3.00 m


Total Off-scale (>61,000 cps)3 =

0.00 m

5.25 m

4.50 m

0.00 m

0.50 m

0.00 m

13.85 m

0.00 m

5.50 m

0.00 m

2.50 m


Continuous GT (Grade x Thickness) =

Assays

Pending

Assays

Pending

Assays

Pending

203

Assays

Pending

Assays

Pending

638 and 604

Assays

Pending

541

338

Assays

Pending



1 radioactivity results previously released













2 radioactivity and assays results previously released












3 minimum radioactivity using RS-120 gamma spectrometer






















 

Arrow, Activities & Financial

  • The land-based and basement hosted Arrow zone currently covers an area of 865 m by 275 m with a vertical extent of mineralization commencing from 100 m to 920 m, and remains open in all directions and at depth.
  • The winter 2016 program comprising 30,000 m of drilling continues with six drill rigs active.
  • The Company remains on track for release of an updated NI 43-101 resource estimate on the Arrow deposit due in the second half of 2016
  • The Company has cash on hand of $33M.

Drill hole locations, the A2 Sub-Zone, A2 and A3 long sections, and the location of AR-16-77c2 are shown in Figures 1 to 5. Table 2 has a summary of the mineralized intervals.

Garrett Ainsworth, Vice-President, Exploration and Development, commented, "Hole AR-16-77c2 has intersected significant mineralization and alteration located 180 m southwest from the current Arrow resource model extent.  The frequency and intensity of dravite breccias that we have observed in hole -77c2 are akin to what we see proximal to the higher grade A2 sub-zone, so undoubtedly we are excited to continue drilling wide spaced step-outs in this area of high potential for another high grade sub-zone."  

Leigh Curyer, Chief Executive Officer commented, "The two objectives of this winter's drill program are clearly being exceeded. The team is very encouraged to be intersecting strong uranium mineralization 180 m to the southwest in the third hole drilled in this area. In parallel, the ongoing development of the A2 High Grade Domain continues to deliver strong intercepts of mineralization within and outside the existing A2 High Grade Domain and will be incorporated into an updated resource estimate in H2 2016."

Table 2: Arrow Zone Drill Hole Data




Drill Hole

Athabasca

Group -

Basement

Unconformity

Depth (m)

Handheld Scintillometer Results (RS-120)

Hole ID

Azimuth

Dip

Total

Depth

(m)

From (m)

To (m)

Width (m)

CPS Range

AR-16-74c4

144

-69

930.00

113.80

457.50

458.00

0.50

<500 -  750






518.50

519.00

0.50

<500 -  510






538.00

541.50

3.50

<500 -  3000






545.50

546.00

0.50

<500 -  1400






560.00

561.00

1.00

<500 -  8000






563.50

567.50

4.00

<500 -  10000






571.00

574.50

3.50

<500 -  820






577.00

585.50

8.50

<500 -  1100






591.50

592.00

0.50

<500 -  4200






595.00

602.50

7.50

<500 -  60000






605.50

609.00

3.50

<500 -  1500






612.00

619.00

7.00

<500 -  23000






625.00

661.00

36.00

<500 -  52000






664.00

680.50

16.50

<500 -  14000






687.00

687.50

0.50

<500 -  2100






698.00

699.50

1.50

520 -  7400






707.00

708.50

1.50

<500 -  14000






715.50

717.00

1.50

<500 -  17000






723.50

725.00

1.50

<500 -  18000






729.00

734.00

5.00

<500 -  40000






737.50

740.50

3.00

<500 -  23000






743.50

744.50

1.00

520 -  1800






749.50

754.00

4.50

<500 -  41000






756.50

762.00

5.50

<500 -  40000






769.00

769.50

0.50

<500 -  810






774.50

775.00

0.50

<500 -  530






807.00

814.50

7.50

<500 -  31000






817.00

817.50

0.50

<500 -  10500






860.50

867.00

6.50

<500 -  2400






873.00

873.50

0.50

<500 -  650






877.00

878.00

1.00

<500 -  730






884.00

885.50

1.50

<500 -  24000






891.50

897.50

6.00

<500 -  61000

AR-16-76c2

140

-70

609.00

114.95

435.00

437.00

2.00

<500 -  1100






472.50

475.00

2.50

<500 -  22000






484.50

500.50

16.00

<500 -  27000






510.50

535.00

24.50

<500 -  61000






538.50

540.00

1.50

<500 -  800






588.00

594.00

6.00

<500 -  2500






599.50

602.00

2.50

<500 -  870

AR-16-76c3

140

-70

606.00

114.95

470.50

478.50

8.00

<500 -  3700






482.50

483.50

1.00

700 -  17000






486.00

543.50

57.50

<500 -  61000






586.50

587.00

0.50

<500 -  650






594.50

595.00

0.50

<500 -  1100

AR-16-76c4

140

-70

668.00

114.95

494.00

496.50

2.50

<500 -  1200






511.50

516.50

5.00

<500 -  2900






540.50

569.50

29.00

<500 -  51000






576.50

585.20

8.70

<500 -  58000






587.50

607.00

19.50

<500 -  42000






610.50

644.00

33.50

<500 -  61000






647.50

649.50

2.00

<500 -  5000






657.50

662.50

5.00

<500 -  2200






665.00

665.50

0.50

<500 -  510

AR-16-77c1

139

-73

957.00

94.65

767.00

768.00

1.00

<500 -  2000






776.00

776.50

0.50

<500 -  1100






795.00

795.50

0.50

<500 -  510






831.00

842.00

11.00

<500 -  1900






847.50

848.00

0.50

<500 -  650

AR-16-77c2

139

-73

987.00

94.65

231.00

231.50

0.50

<500 -  950






310.50

311.00

0.50

<500 -  850






571.00

571.50

0.50

<500 -  3100






615.00

636.00

21.00

<500 -  50000






639.50

651.00

11.50

<500 -  3900






663.00

669.00

6.00

<500 -  3500






673.50

674.00

0.50

<500 -  1000






678.00

686.00

8.00

<500 -  9600






688.50

690.50

2.00

<500 -  3000






694.00

704.00

10.00

<500 -  12000






707.00

708.00

1.00

<500 -  2100






717.50

730.00

12.50

<500 -  870






740.50

742.00

1.50

<500 -  950






753.00

758.50

5.50

<500 -  1100






761.00

761.50

0.50

<500 -  650






773.00

779.00

6.00

<500 -  1500






800.00

802.50

2.50

<500 -  900






806.00

817.50

11.50

<500 -  1700






835.50

836.50

1.00

<500 -  1100






845.50

847.50

2.00

<500 -  1000






908.50

909.50

1.00

<500 -  890






913.50

914.00

0.50

<500 -  650






918.00

918.50

0.50

<500 -  530






935.50

936.00

0.50

<500 -  520






939.00

941.50

2.50

<500 -  1350

AR-16-78c2

138

-68

603.00

110.95

309.00

309.50

0.50

<500 -  510






396.50

409.00

12.50

<500 -  1250






412.50

415.50

3.00

<500 -  550






427.50

433.50

6.00

<500 -  2500






438.00

438.50

0.50

<500 -  650






441.00

442.50

1.50

<500 -  3000






445.00

448.00

3.00

<500 -  3100






454.00

472.50

18.50

<500 -  61000






488.00

500.00

12.00

<500 -  61000






592.00

592.50

0.50

<500 -  900

AR-16-78c3

138

-68

630.00

110.95

371.50

379.50

8.00

<500 -  1200






383.00

390.50

7.50

<500 -  2100






394.50

401.50

7.00

<500 -  6000






404.50

406.00

1.50

<500 -  1200






419.50

420.00

0.50

<500 -  500






438.00

442.00

4.00

<500 -  2100






456.50

492.00

35.50

<500 -  61000






518.00

520.00

2.00

<500 -  2400






522.50

529.00

6.50

<500 -  61000






532.00

533.00

1.00

<500 -  1300






553.50

558.00

4.50

<500 -  1900






563.00

565.00

2.00

650 -  6700






576.50

581.50

5.00

<500 -  1000






588.00

588.50

0.50

<500 -  700






595.50

597.00

1.50

<500 -  950






601.50

605.00

3.50

<500 -  900






614.00

620.00

6.00

<500 -  1500






625.00

625.50

0.50

<500 -  650






628.50

629.00

0.50

<500 -  800

 

Parameters:

  • Maximum internal dilution 2.00 m downhole
  • All depths and intervals are meters downhole
  • "Anomalous" means >500 cps (counts per second) total count gamma readings by gamma scintillometer type RS-120
  • "Off-scale" means >10,000 cps (counts per second) total count gamma readings by gamma scintillometer type RS-120
  • Where "Min cps" is <500 cps, this refers to local low radiometric zones within the overall radioactive interval

Natural gamma radiation in drill core reported in this news release was measured in counts per second (cps) using a Radiation Solutions Inc. RS-120 gamma-ray scintillometer. The reader is cautioned that total count gamma readings may not be directly or uniformly related to uranium grades of the rock sample measured; they should be used only as a preliminary indication of the presence of radioactive minerals. All intersections are downhole. True thicknesses are yet to be determined.

Split core samples will be taken systematically, and intervals will be submitted to SRC Geoanalytical Laboratories (an SCC ISO/IEC 17025: 2005 Accredited Facility) of Saskatoon for analysis. All samples sent to SRC will be analyzed using ICP-MS for trace elements on partial and total digestions, ICP-OES for major and minor elements on a total digestion, and fusion solution of boron by ICP-OES. Mineralized samples are analyzed for U3O8 by ICP-OES and select samples for gold by fire assay. Assay results will be released when received and after stringent internal QA/QC protocols are passed.

The technical information in this news release has been approved by Garrett Ainsworth, P.Geo., Vice President – Exploration & Development, a qualified person for the purposes of National Instrument 43- 101 – Standards of Disclosure for Mineral Projects. Mr. Ainsworth reviewed the data disclosed in this news release, including the sampling, analytical and test data underlying the information contained in this news release.

The mineral resource at the Arrow Deposit was completed by RPA Inc. and has an effective date of January 14, 2016. The mineral resource is reported at a cut-off grade of 0.25% U3O8. The cut-off is based on a long-term uranium price of USD$65/lb U3O8. The mineral resource is classified into the inferred category based on the CIM Definition Standards. For details regarding the geology and mineralization of the Arrow Deposit, the drilling, sampling and analytical procedures followed and the estimation methodology used in the preparation of the mineral resources, please refer to the Company's Amended and Restated News Release dated March 3, 2016, which is available under the Company's profile on the SEDAR website at www.sedar.com.

ARROW ZONE DRILLING

AR-16-74c4

Hole AR-16-74c4 was a directional hole that departed pilot hole AR-16-74c3 at a depth of 357.0 m. It tested the A2 shear 16 m up-dip and northeast of AR-15-56c1 (4.20% U3O8 over 11.0 m in the A2 shear) and the A3 shear 33 m up-dip and northeast of AR-15-56c1 (12.06% U3O8 over 6.5 m and 1.14% U3O8 over 28.0 m in the A3 shear). Directional drilling was initiated at 357.0 m. The A2 and A3 shears were both intersected at an inclination of -72°.

Since the hole departed the pilot hole below the unconformity, no Athabasca Group sandstones were intersected. Basement lithologies consisted largely of semipelitic gneiss to granofel, and relatively narrow intervals of pelitic gneiss and mylonite (the A2 through A4 shears). The hole successfully intersected weakly to strongly anomalous radioactivity in the A2 through A4 shears that was associated with veins, stringers, chemical solution fronts, worm-rock style, flecks and blebs of pitchblende. A total composite mineralization of 143.0 m including 9.9 m of off-scale radioactivity (>10,000 - >61,000 cps) was intersected within a 440.0 m section (457.5 to 897.5 m). In the A2 shear, 92.5 m of total composite mineralization including 4.55 m of off-scale radioactivity was intersected. In the A3 shear, 34.5 m of total composite mineralization including 4.6 m of off-scale radioactivity was intersected. In the A4 shear, 15.5 m of composite mineralization including 0.75 m of off-scale radioactivity was intersected. The hole was terminated at 930.0 m.

AR-16-76c2

Hole AR-16-76c2 was a directional hole that departed pilot hole AR-16-76c1 at a depth of 281 m. It tested the A2 shear 24 m down-dip and southwest of AR-15-54c1 (7.03% U3O8 over 39.5 m in the A2 shear). Directional drilling was initiated at 291.0 m and the A2 shear was intersected at an inclination of -69°.

Since the hole departed the pilot hole below the unconformity, no Athabasca Group sandstones were intersected. Basement lithologies consisted largely of semipelitic gneiss to granofel, and relatively narrow intervals of pelitic gneiss and mylonite (the A2 shear). The hole successfully intersected weakly to strongly anomalous radioactivity in the A2 shear that was associated with semi-massive to massive veins, stringers, worm-rock style, chemical solution fronts, blebs and flecks of pitchblende. A total composite mineralization of 33.0 m including 7.05 m of off-scale radioactivity (>10,000 - >61,000 cps) was intersected within a 167.0 m section (435.0 to 602.0 m), all within the A2 shear. The hole was terminated at 609.0 m.

AR-16-76c3

Hole AR-16-76c3 was a directional hole that departed pilot hole AR-16-76c2 at a depth of 296.0 m. It tested the A2 shear 20 m down-dip and southwest of AR-15-58c1 (2.48% U3O8 over 80.5 m and 9.72% U3O8 over 35.5 m in the A2 shear). Directional drilling was initiated at 306.0 m and the A2 shear was intersected at an inclination of -68°.

Since the hole departed the pilot hole below the unconformity, no Athabasca Group sandstones were intersected. Basement lithologies consisted largely of semipelitic gneiss to granofel, and relatively narrow intervals of pelitic gneiss and mylonite (the A2 shear). The hole successfully intersected extensive visible uranium mineralization within the higher grade sub-zone of the A2 shear that was associated with semi-massive to massive veins, stringers, worm-rock style, chemical solution fronts, blebs and flecks of pitchblende.  A total composite mineralization of 67.5 m including 24.35 m of off-scale radioactivity (>10,000 - >61,000 cps) was intersected within a 124.5 m section (470.5 to 595.0 m), all within the A2 shear. The hole was terminated at 606.0 m.

AR-16-76c4

Hole AR-16-76c4 was a directional hole that departed pilot hole AR-16-76c3 at a depth of 310.0 m. It tested the A2 shear 34 m down-dip and southwest of AR-16-76c3 (24.35 m of off-scale radioactivity in the A2 shear, assays pending). Directional drilling was initiated at 438.0 m and the A2 shear was intersected at an inclination of -73°.

Since the hole departed the pilot hole below the unconformity, no Athabasca Group sandstones were intersected. Basement lithologies consisted largely of semipelitic gneiss to granofel, and relatively narrow intervals of pelitic gneiss and mylonite (the A2 shear). The hole successfully intersected extensive visible uranium mineralization within the higher grade sub-zone of the A2 shear that was associated with semi-massive to massive veins, stringers, worm-rock style, chemical solution fronts, blebs and flecks of pitchblende.  A total composite mineralization of 105.7 m including 20.85 m of off-scale radioactivity (>10,000 - >61,000 cps) was intersected within a 171.5 m section (494.0 to 665.5 m).  The hole was terminated at 668.0 m immediately following the A2 to avoid twinning a previous hole.  It represents a significant step out on the A2 high grade domain.

AR-16-77c1

Hole AR-16-77c1 was a directional hole collared from surface at an angled orientation (-75°) to the southeast (140° azimuth).  It was designed to test for the presence of mineralization 150 m up-dip from AR-15-75 and 165 m southwest of the Arrow Deposit.  Directional drilling was initiated at 184.0 m. The A3 and A4 shears were intersected at inclinations of -76° and -77°, respectively. 

The hole intersected moderately bleached Athabasca Group sandstones between 91.9 m and the unconformity at 94.6 m. Basement lithologies consisted largely of semipelitic gneiss to granofel, and relatively narrow intervals of pelitic gneiss and mylonite (the A1 through A4 shears). The hole successfully intersected anomalous radioactivity in the A3 and A4 shears that was associated with disseminated flecks of and fractured-controlled pitchblende in association with extensive and locally strong dravite alteration. A total composite mineralization of 13.5 m was intersected within an 81.0 m section (767.0 to 848.0 m).  In the A3 shear 1.5 m of composite mineralization was intersected. In the A4 shear 12.0 m of composite mineralization was intersected. The hole was terminated at 957.0 m. It has successfully grown the strike length of Arrow to 865 m.

AR-16-77c2

Hole AR-16-77c2 was a directional hole that departed pilot hole AR-16-77c1 at a depth of 180.0 m. It was designed to test the A3 and A4 shear approximately 150 m up-dip from AR-16-75 and AR-16-77c1, southwest of the Arrow deposit. Directional drilling was initiated at 192.0 m. The A4 shear was intersected at an inclination of -72°.

Since the hole departed the pilot hole below the unconformity, no Athabasca Group sandstones were intersected. Basement lithologies consisted largely of semipelitic gneiss to granofel, and relatively narrow intervals of pelitic gneiss and mylonite (the A1 through A4 shears). The hole successfully intersected weakly to strongly anomalous radioactivity in the A1 through A4 shears.  A total composite mineralization of 109.5 m including 2.3 m of off-scale radioactivity (>10,000 to 50,000 cps) was intersected within a 700.5 m section (231.0 to 931.5 m). The bulk of the mineralization was intersected southwest along strike from the A4 shear where 86.0 m of total composite mineralization, and 2.3 m of off-scale radioactivity was drilled in close association with extensive and intense dravite alteration. In addition, intermittent mineralization and alteration continued southeast of the A4 shear where 22.0 m of total composite mineralization was intersected before the hole was terminated at 987.0 m.  The hole represents a 180 m step-out southwest from the margin of the Arrow Deposit Inferred Mineral Resource, and has increased the width of Arrow to 275 m. The Company is very encouraged by both the strength of the mineralization and the intensity of the dravite alteration seen in the hole. 

AR-16-78c2

Hole AR-16-78c2 was a directional hole that departed pilot hole AR-16-78c1 at a depth of 227.0 m. It tested the A2 shear 22 m down-dip and northeast of AR-15-49c2 (8.77% U3O8 over 69.0 m in the A2 shear). Directional drilling was initiated at 252.0 m and the A2 shear was intersected at an inclination of -71°.

Since the hole departed the pilot hole below the unconformity, no Athabasca Group sandstones were intersected. Basement lithologies consisted largely of semipelitic gneiss to granofel, and relatively narrow intervals of pelitic gneiss and mylonite (the A2 shear). The hole successfully intersected weakly to strongly anomalous radioactivity in the A2 shear that was associated with semi-massive to massive veins, stringers, worm-rock style, chemical solution fronts, blebs and flecks of pitchblende. A total composite mineralization of 58.0 m including 8.60 m of off-scale radioactivity (>10,000 ->61,000 cps) was intersected within a 283.5 m section (309.0 to 592.5 m). The hole was terminated at 603.0 m.

AR-16-78c3

Hole AR-16-78c3 was a directional hole that departed pilot hole AR-16-78c2 at a depth of 252.0 m. It tested the A2 shear 21 m down-dip and northeast of AR-15-34b (2.20% U3O8 over 70.0 m in the A2 shear). Directional drilling was initiated at 264.0 m and the A2 shear was intersected at an inclination of -72°.

Since the hole departed the pilot hole below the unconformity, no Athabasca Group sandstones were intersected. Basement lithologies consisted largely of semipelitic gneiss to granofel, and relatively narrow intervals of pelitic gneiss and mylonite (the A2 shear). The hole successfully intersected weakly to strongly anomalous radioactivity in the A2 shear that was associated with semi-massive to massive veins, stringers, worm-rock style, chemical solution fronts, blebs and flecks of pitchblende. A total composite mineralization of 97.5 m including 3.65 m of off-scale radioactivity (>10,000 ->61,000 cps) was intersected within a 257.5 m section (371.5 to 629.0 m). The hole was terminated at 630.0 m.

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 highly prospective uranium exploration assets in the Athabasca Basin, Saskatchewan, Canada, including a 100% interest in Rook I, location of the Arrow Discovery in February 2014. The Arrow Deposit's maiden Inferred mineral resource estimate is 201.9 M lbs U3O8 contained in 3.48 M tonnes grading 2.63% U3O8.  Rook I also hosts the Bow Discovery which is 3.7 km along trend and northeast of Arrow and was made in March 2015.

The TSXV has neither approved nor disapproved the contents of this press release. Neither the TSXV nor its Regulation Services Provider (as that term is defined in the policies of the TSXV) accepts responsibility for the adequacy or accuracy of this release.

Forward-Looking Information

This news release contains "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, including, without limitation, the proposed use of proceeds and planned exploration activities. 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 connation thereof.

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 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 and supplies and governmental and other approvals required to conduct the Company's planned exploration activities will be available on reasonable terms and in a timely 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 events or results in future periods to differ materially from any projections of future events or results 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 additional financing, no known mineral reserves or resources, pending assay results may not be consistent with preliminary results, discretion in the use of proceeds, alternative sources of energy, 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 exploration programs based upon results, availability of third party contractors, availability of equipment and supplies, failure of equipment to operate as anticipated; accidents, effects of weather and other natural phenomena and other risks associated with the mineral exploration industry, environmental risks, changes in laws and regulations, community relations and delays in obtaining governmental or other approvals.

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.

SOURCE NexGen Energy Ltd.

Image with caption: "Figure 1: Arrow Drill Hole Locations (CNW Group/NexGen Energy Ltd.)". Image available at: http://photos.newswire.ca/images/download/20160330_C1976_PHOTO_EN_653383.jpg

Image with caption: "Figure 2: A2 Mineralized Shear Long Section (Close Up of Sub-Zone) (CNW Group/NexGen Energy Ltd.)". Image available at: http://photos.newswire.ca/images/download/20160330_C1976_PHOTO_EN_653385.jpg

Image with caption: "Figure 3: A2 Mineralized Shear Long Section (CNW Group/NexGen Energy Ltd.)". Image available at: http://photos.newswire.ca/images/download/20160330_C1976_PHOTO_EN_653387.jpg

Image with caption: "Figure 4: A3 Mineralized Shear Long Section (CNW Group/NexGen Energy Ltd.)". Image available at: http://photos.newswire.ca/images/download/20160330_C1976_PHOTO_EN_653389.jpg

Image with caption: "Figure 5: Schematic Long Section of the Arrow Deposit and Hole AR-16-77c2 (CNW Group/NexGen Energy Ltd.)". Image available at: http://photos.newswire.ca/images/download/20160330_C1976_PHOTO_EN_653391.jpg

For further information: Leigh Curyer, Chief Executive Officer, NexGen Energy Ltd., +1 604 428 4112, lcuryer@nexgenenergy.ca, www.nexgenenergy.ca; Travis McPherson, Corporate Development Manager, NexGen Energy Ltd., +1 604 428 4112, tmcpherson@nexgenenergy.ca, http://www.nexgenenergy.ca

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