NexGen Intersects Continuous and Strong High‐Grade Mineralization in all of the Initial A2 Sub‐Zone Targets from Feasibility Stage Drilling
NexGen Intersects Continuous and Strong High‐Grade Mineralization in
all of the Initial A2 Sub‐Zone Targets from Feasibility Stage Drilling
Vancouver, BC, March 28, 2019 – NexGen Energy Ltd. (“NexGen” or the “Company”) (TSX: NXE, NYSE MKT:
NXE) is pleased to report radioactivity results for the first twenty holes comprising 8,216.5 m from the Company’s
first phase of Feasibility‐stage drilling program at our 100% ow n e d , R o o k I p r o p e r t y i n t h e A t h a b a s c a B a s i n
Saskatchewan.
Highlights:
Objective I: Conversion of Indicated to Measured in the A2 Sub‐Zone
Nineteen targets have been successfully intersected within the A2 Sub‐Zone. This current phase of the program
focuses on targets intersected at a spacing between 9.0 m and 16.7 m (based on geostatistical data spacing report
compiled by Clayton V. Deutsch from Resource Modeling Solutions) for Indicated Mineral Resources to be
elevated to a Measured Mineral Resource classification. All drill holes intersected the target between ‐55° and ‐
60° utilizing the latest in directional drilling technology.
The highlights below include composite and off‐scale radioactiv ity results from the A2 Shear only, for
radioactivity results for the entire hole see Table 1: Arrow Deposit Drill Hole Data.
AR‐19‐225c1 intersected 38.0 m of total composite mineralization including 10.15 m of total composite
off‐scale radioactivity (>10,000 to >61,000 cps) within a 91.0 m section (529.0 to 620.0 m) in the A2 Sub‐
Zone. Additionally, of the 10.15 m of off‐scale mineralization intersected in the hole 7.0 m of massive‐
to‐semi massive pitchblende with minimum‐greater‐than‐61,000 cps.
AR‐19‐224c1 intersected 37.5 m of total composite mineralization including 10.8 m of total composite
off‐scale radioactivity (>10,000 to >61,000 cps) within a 97.0 m section (496.0 to 593.0 m) in the A2 Sub‐
Zone. Additionally, of the 10.8 m of off‐scale mineralization intersected in the hole 4.0 m of massive‐to‐
semi massive pitchblende with minimum‐greater‐than‐61,000 cps.
AR‐19‐224c2 intersected 47.0 m of total composite mineralization including 12.55 m of total composite
off‐scale radioactivity (>10,000 to >61,000 cps) within a 98.0 m section (453.0 to 551.0 m) in the A2 Sub‐
Zone. Additionally, of the 12.55 m of off‐scale mineralization intersected in the hole 3.0 m of massive‐
to‐semi massive pitchblende with minimum‐greater‐than‐61,000 cps.
AR‐19‐225c2 intersected 35.0 m of total composite mineralization including 11.05 m of total composite
off‐scale radioactivity (>10,000 to >61,000 cps) within a 92.0 m section (540.0 to 632.0 m) in the A2 Sub‐
Zone. Additionally, of the 11.05 m of off‐scale mineralization intersected in the hole 1.5 m of massive‐
to‐semi massive pitchblende with minimum‐greater‐than‐61,000 cps.
AR‐19‐223c2 intersected 43.5 m of total composite mineralization including 5.5 m of total composite
off‐scale radioactivity (>10,000 to >61,000 cps) within a 97.0 m section (486.0 to 583.0 m) in the A2 Sub‐
Zone. Additionally, of the 5.5 m of off‐scale mineralization in tersected in the hole 1.5 m of massive‐to‐
semi massive pitchblende with minimum‐greater‐than‐61,000 cps.
AR‐19‐227c2 intersected 54.0 m of total composite mineralization including 9.75 m of total composite
off‐scale radioactivity (>10,000 to >61,000 cps) within a 98.0 m section (419.0 to 517.0 m) in the A2 Sub‐
Zone. Additionally, of the 9.75 m of off‐scale mineralization intersected in the hole 0.5 m of massive‐to‐
semi massive pitchblende with minimum‐greater‐than‐61,000 cps.
AR‐19‐228c1 intersected 36.0 m of total composite mineralization including 4.25 m of total composite
off‐scale radioactivity (>10,000 to >61,000 cps) within an 87.0 m section (569.0 to 65 6.0 m) in the A2
Sub‐Zone. Additionally, of the 4.25 m of off‐scale mineralization intersected in the hole 0.5 m of massive‐
to‐semi massive pitchblende with minimum‐greater‐than‐61,000 cps.
AR‐19‐226c1 intersected 46.0 m of total composite mineralization including 6.4 m of total composite
off‐scale radioactivity (>10,000 to >61,000 cps) within a 100.0 m section (447.0 to 54 7.0 m) in the A2
Sub‐Zone.
AR‐19‐233c2 intersected 49.0 m of total composite mineralization including 9.45 m of total composite
off‐scale radioactivity (>10,000 to >61,000 cps) within a 99.0 m section (414.0 to 513.0 m) in the A2 Sub‐
Zone.
Drill hole locations and schematics are shown in Figures 1 and 2. Drill hole descriptions can be found at
www.nexgenenergy.ca
Development, Activities & Financial
Expediting Arrow to Feasibility by initiation of a 2‐stage 125,000m (10 rig) high density drilling
program that commenced in mid‐December 2018 to focus on mine optimization plans based on
Measured and Indicated mineral resources.
The Company has approximately $100 million in the treasury which fully funds NexGen for all drilling,
feasibility and development programs planned this year.
Leigh Curyer, Chief Executive Officer, commented: “This development focused drilling continually highlights the
incredible nature and strength of Arrow in terms of the continu ity of high grade uranium. Intersecting the type
of mineralization reported in today’s release with such regular ity is simply unique and continually increases the
technical strength of Arrow. We look forward to delivering the results of the 10 rig program throughout 2019.”
Troy Boisjoli, Vice‐President, Operations and Project Development, commented: “These results demonstrate the
confidence in the continuation of high‐grade uranium mineralization within the A2 Sub‐Zone. This initial release
is just the beginning of what will surely be another highly successful 2019 program as the Company moves
towards completing the Feasibility Study which will incorporate an updated mineral resource estimate based on
the 2019 drill campaign which is the largest in the Company’s history.”
Figure 1: Arrow and South Arrow Drill Hole Locations
Figure 2: Target Area for Objective I of the 2019 Feasibility Stage Drill Program
Table 1: Arrow Deposit 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-19-221c1 327 -65 576 129.5 432.5 433.5 1 <500 - 990
442.5 446 3.5 <500 - 1100
448.5 449 0.5 <500 - 620
478.5 479.5 1 <500 - 580
485 486 1 <500 - 780
495.5 497.5 2 <500 - 1340
506.5 507 0.5 <500 - 670
511 517.5 6.5 <500 - 2200
524.5 549 24.5 <500 - 61000
554.5 555 0.5 <500 - 1180
AR-19-221c2 327 -65 597.5 N/A 426.5 430.5 4 <500 - 2100
437.5 438 0.5 <500 - 680
484 484.5 0.5 <500 - 1100
495.5 501 5.5 <500 - 1000
506 522.5 16.5 <500 - 1500
540 559.5 19.5 <500 - 61000
562 562.5 0.5 <500 - 1200
591.5 592 0.5 <500 - 550
AR-19-222c1 327 -65 597.5 133.45 401.5 404 2.5 <500 - 1400
422 425.5 3.5 <500 - 2600
437.5 439 1.5 <500 - 10800
447 447.5 0.5 <500 - 1000
450.5 482 31.5 <500 - 7400
494.5 551 56.5 <500 - 61000
557.5 559 1.5 <500 - 3720
577 577.5 0.5 <500 - 560
AR-19-222c2 327 -65 594 N/A 412.5 413 0.5 <500 - 1100
417.5 418 0.5 <500 - 2800
433 437.5 4.5 <500 - 1350
443.5 453.5 10 <500 - 32000
456 457.5 1.5 <500 - 2100
461.5 463 1.5 <500 - 3000
466 471 5 <500 - 6900
474.5 478 3.5 <500 - 1600
480.5 490 9.5 <500 - 1150
492.5 493 0.5 <500 - 1250
497 523 26 <500 - 61000
528.5 538.5 10 <500 - 37000
543.5 546.5 3 <500 - 18600
AR-19-223c1 327 -65 588 133.6 435 438.5 3.5 <500 - 1300
446 449.5 3.5 <500 - 2700
453 460 7 <500 - 6900
464.5 468 3.5 <500 - 3800
474 476.5 2.5 <500 - 1400
485.5 486 0.5 900 - 1280
490 495.5 5.5 <500 - 5500
498.5 503.5 5 <500 - 1380
509.5 519.5 10 <500 - 3000
522.5 528.5 6 <500 - 1300
532 549 17 <500 - 61000
553 556.5 3.5 <500 - 3800
559 560.5 1.5 <500 - 4300
569 570.5 1.5 <500 - 1600
AR-19-223c2 327 -65 615.5 N/A 434.5 438 3.5 <500 - 640
444.5 446 1.5 <500 - 1000
451.5 453 1.5 <500 - 1700
455.5 462 6.5 <500 - 17000
466.5 467.5 1 <500 - 2800
473 475 2 <500 - 740
479 483.5 4.5 <500 - 560
488 491 3 <500 - 1500
499 502 3 <500 - 1000
508.5 515 6.5 <500 - 3300
539.5 552.5 13 <500 - 61000
555 558 3 <500 - 34200
565 572 7 <500 - 31000
574.5 576 1.5 <500 - 870
AR-19-223c3 327 -65 586.5 N/A 417.5 418 0.5 <500 - 700
425 426 1 <500 - 920
435 444.5 9.5 <500 - 6900
452 459.5 7.5 <500 - 3300
462.5 465 2.5 <500 - 1100
468.5 470.5 2 <500 - 660
473 476 3 <500 - 5300
485 490.5 5.5 <500 - 2400
493 495 2 <500 - 1450
498.5 517.5 19 <500 - 7000
520 523.5 3.5 <500 - 1000
527 551 24 <500 - 61000
559.5 566 6.5 <500 - 61000
570.5 573 2.5 <500 - 670
AR-19-224c1 327 -65 597.5 129.45 404 404.5 0.5 <500 - 640
443.5 446.5 3 <500 - 1100
449 449.5 0.5 <500 - 1080
452 452.5 0.5 <500 - 640
455 456 1 <500 - 2050
465 465.5 0.5 <500 - 1370
469.5 473.5 4 <500 - 1650
497.5 500.5 3 <500 - 820
503 506.5 3.5 <500 - 1040
510 511 1 <500 - 540
524.5 525 0.5 <500 - 560
530 533 3 <500 - 710
536.5 538 1.5 <500 - 2340
543.5 544.5 1 <500 - 1270
548 551 3 <500 - 3610
554.5 575.5 21 <500 - 61000
AR-19-224c2 327 -65 612.5 N/A 441 442.5 1.5 <500 - 1850
445 447.5 2.5 <500 - 1220
450 453.5 3.5 <500 - 2350
470 470.5 0.5 <500 - 520
476 478.5 2.5 <500 - 4100
494 503 9 <500 - 2800
518 518.5 0.5 <500 - 600
524 524.5 0.5 <500 - 530
538 571.5 33.5 <500 - 61000
582 585.5 3.5 <500 - 13000
AR-19-225c1 327 -65 627.5 128.7 474 474.5 0.5 <500 - 630
494.5 495 0.5 <500 - 520
501 505 4 <500 - 4500
520.5 525 4.5 <500 - 1280
531 531.5 0.5 <500 - 980
545 546 1 <500 - 1180
566.5 598.5 32 <500 - 61000
AR-19-225c2 327 -65 636.5 N/A 473.5 474.5 1 <500 - 900
479.5 480.5 1 <500 - 2000
563.5 593.5 30 <500 - 61000