NexGen Continues to Intersect High-Grade Mineralization in all A2 and A3 Targets Highlighting Strength of Continuity at Arrow
NexGen Continues to Intersect High-Grade Mineralization in all A2 and
A3 Targets Highlighting Strength of Continuity at Arrow
Vancouver, BC, July 10, 2019 – NexGen Energy Ltd. (“NexGen” or the “Company”) (TSX: NXE, NYSE MKT: NXE)
is pleased to report radioactivity results for an additional forty holes comprising 18,166.5 m from the Company’s
Feasibility stage drilling program at our 100% owned, Rook I property in the Athabasca Basin, Saskatchewan.
Conversion of Indicated to Measured
This current phase of the 2019 drilling program is targeting the A2 and A3 High -Grade Domain mine planning
sections at a spacing between 9.0 m and 16.7 m based on a geostatistical data spacing report compiled by Clayton
V. Deutsch from Resource Modeling Solutions. All drill holes are collared at a steep inclination, then shallowed
out between -55° and -60° before intersecting the target by utilizing the latest in directional drilling technology.
Highlights:
A2 High-Grade Domains and Sub-Zone
The highlights below include composite and off -scale radioactivity results from the A2 only, for radioactivity
results for the entire hole see Table 1: Arrow Deposit Drill Hole Data.
• AR-19-229c5 intersected 44.0 m of total composite mineralization including 14.05 m of total composite
off-scale radioactivity (>10,000 to >61,000 cps) within a 98.0 m section (573.0 to 678.0 m). Additionally,
of the 14.05 m of off -scale mineralization int ersected in the hole 3.35 m of massive -to-semi massive
pitchblende with minimum-greater-than-61,000 cps;
• AR-19-239c2 intersected 45.5 m of total composite mineralization including 7.60 m of total composite
off-scale radioactivity (>10,000 to >61,000 cps) within a 107.0 m section ( 642.0 to 749.0 m).
Additionally, of the 7.60 m of off-scale mineralization intersected in the hole 1.65 m of massive-to-semi
massive pitchblende with minimum-greater-than-61,000 cps;
• AR-19-241c1 intersected 10.0 m of total composite mineralization including 4.65 m of total composite
off-scale radioactivity (>10,000 to >61,000 cps) within a 91.0 m section (492.0 to 583.0 m) in the A2 sub-
zone. Additionally, of the 4.65 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-19-243c3 intersected 24.5 m of total composite mineralization including 4.45 m of total composite
off-scale radioactivity (>10,000 to >61,000 cps) within a n 85.5 m section ( 593.0 to 678.5 m).
Additionally, of the 4.45 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-19-246c1 intersected 52.0 m of total composite mineralization including 6.70 m of total composite
off-scale radioactivity (>10,000 to >61,000 cps) within a 107.5 m section ( 628.0 to 735.5 m).
Additionally, of the 6.7 m of off-scale mineralization intersected in the hole 0.65 m of massive-to-semi
massive pitchblende with minimum-greater-than-61,000 cps;
• AR-19-247c1 intersected 27.0 m of total composite mineralization including 4.30 m of total composite
off-scale radioactivity (>10,000 to >61,000 cps) within an 85.0 m section (605.0 to 690.0 m).
A3 High-Grade Domains and Sub-Zone
The highlights below include composite and off -scale radioactivity results from the A 3 only, for radioactivity
results for the entire hole see Table 1: Arrow Deposit Drill Hole Data.
• AR-19-248c2 intersected 45.5 m of total composite mineralization including 7.30 m of total composite
off-scale radioactivity (>10,000 to >61,000 cps) within an 89.0 m section (487.0 to 576.0 m);
• AR-19-242c2 intersected 51.5 m of total composite mineralization including 5.85 m of total composite
off-scale radioactivity (>10,000 to >61,000 cps) within a 92.5 m section (511.0 to 603.5 m);
• AR-19-238c3 intersected 28.0 m of total composite mineralization including 5.25 m of total composite
off-scale radioactivity (>10,000 to >61,000 cps) within a 101.0 m section (440.0 to 541.0 m);
• AR-19-248c1 intersected 42.0 m of total composite mineralization including 5.85 m of total composite
off-scale radioactivity (>10,000 to >61,000 cps) within an 88.0 m section (474.0 to 562.0 m).
Drill hole locations are shown in Figure 1, drilling results can be found in table 1. Drill hole descriptions can be
found at www.nexgenenergy.ca
Development, Activities & Financial
• Expediting Arrow to Feasibility by initiation of a 2-stage (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.
• NexGen commenced an Environmental Assessment on the Rook I Project on April 29, 2019 in accordance
with the requirements of both the Environmental Assessment Act and the Canadian Environmental
Assessment Act, 2012 (“CEAA 2012”) after receiving acceptance of the Rook I Project Description
(Technical Proposal) by the Canadian Nuclear Safety Commission (“CNSC”) and the Saskatchewan
Ministry of Environment (“SMOE”). In addition, NexGen filed an Initial Licence Application with the CNSC
under the Nuclear Safety and Control Act in order to obtain a Licence to Prepare Site and Construct for
the Project.
• As of July 1 , 2019, the Company had cash-on-hand of approximately $85 million which fully funds
NexGen for all drilling, feasibility and development programs planned this year.
Leigh Curyer, Chief Executive Officer, commented: “The largest drill program currently in Canada and in the
Company’s history continues to rapidly a dvance Arrow through to Feasibility Study, detailed design and
permitting. These results once again demonstrate the uniqueness of Arrow in terms of high grade and continuity.
With the broader team advancing all aspects of development, community and permitt ing, it is an exciting time
at NexGen.”
Troy Boisjoli, Vice -President, Operations and Project Development, commented: “This latest batch of
radioactivity results from the A2 and A3 High-Grade Domains, again demonstrates our confidence in the
continuation of the high-grade mineralization across the Arrow Deposit. The strength of mineralization seen as
part of this mine plan development drilling is truly unique and something I’ve never seen in my career. Not only
are we seeing continuity of strong mineralization but also in rock competency throughout the mine plan. We are
looking forward to the completion of Phase I (conversion of Indicated Mineral Resource to the measured
category) and the start of Phase II (conversion of Inferred Mineral Resource to the Indicated category).”
Figure 1: Arrow Deposit Drill Hole Locations
Table 1: Arrow Deposit Drill Hole Data
Drill Hole
Athabasca Group - Basement
Unconformity Depth (m)
Handheld Scintillometer Results (RS-
120/125)
Hole ID Azimuth Dip Total
Depth (m)
From
(m) To (m) Width
(m) CPS Range
AR-19-229c5 327 -65 681.00 N/A 464.00 465.00 1.00 <500 - 1900
469.00 469.50 0.50 <500 - 510
472.00 472.50 0.50 <500 - 680
480.50 487.50 7.00 <500 - 5400
490.00 491.00 1.00 <500 - 7200
495.50 501.00 5.50 <500 - 40000
504.50 511.00 6.50 <500 - 9900
513.50 522.50 9.00 <500 - 28300
525.00 537.50 12.50 <500 - 33000
615.00 659.00 44.00 <500 - 61000
AR-19-230c4 327 -65 693.50 N/A 461.50 463.50 2.00 <500 - 930
502.00 502.50 0.50 <500 - 2470
505.00 507.50 2.50 <500 - 3220
514.00 522.50 8.50 <500 - 1700
533.50 534.50 1.00 <500 - 780
559.00 563.50 4.50 <500 - 1800
567.00 567.50 0.50 <500 - 540
601.50 608.50 7.00 <500 - 61000
615.00 617.50 2.50 <500 - 10200
624.00 628.50 4.50 <500 - 1300
639.00 639.50 0.50 <500 - 640
643.00 647.00 4.00 <500 - 7800
655.00 656.00 1.00 <500 - 730
660.00 660.50 0.50 <500 - 530
666.50 668.00 1.50 <500 - 10600
AR-19-232c4 327 -65 645.50 N/A 495.00 496.00 1.00 <500 - 1680
547.00 549.00 2.00 <500 - 26000
551.50 552.00 0.50 <500 - 5100
559.00 572.50 13.50 <500 - 61000
579.50 581.50 2.00 <500 - 51000
584.50 585.00 0.50 <500 - 2300
596.00 598.50 2.50 <500 - 61000
601.50 605.00 3.50 <500 - 47300
609.00 609.50 0.50 <500 - 870
613.50 614.00 0.50 500 - 2700
617.50 618.00 0.50 <500 - 1100
AR-19-233c4 327 -65 558.50 N/A 452.00 458.00 6.00 <500 - 3070
462.00 462.50 0.50 <500 - 530
465.50 466.00 0.50 <500 - 620
484.50 497.00 12.50 <500 - 13400
506.50 521.00 14.50 <500 - 30000
525.00 528.50 3.50 500 - 1350
AR-19-234c3 327 -65 537.00 N/A 460.00 461.50 1.50 <500 - 990
479.00 484.00 5.00 <500 - 1700
487.50 511.00 23.50 <500 - 61000
AR-19-236c3 327 -65 684.50 N/A 461.50 462.50 1.00 <500 - 2100
468.50 469.50 1.00 <500 - 2800
476.50 477.00 0.50 590 - 21000
483.00 486.00 3.00 <500 - 1260
488.50 489.50 1.00 <500 - 1760
498.50 499.50 1.00 <500 - 2700
505.00 506.00 1.00 <500 - 750
515.50 529.50 14.00 <500 - 61000
534.50 535.00 0.50 <500 - 820
542.50 543.50 1.00 <500 - 1100
578.00 586.00 8.00 <500 - 1000
591.00 593.00 2.00 <500 - 1060
596.50 601.50 5.00 <500 - 9300
604.00 617.00 13.00 <500 - 3200
620.50 635.50 15.00 <500 - 61000
638.50 644.50 6.00 <500 - 1430
648.00 649.00 1.00 <500 - 6300
654.00 664.00 10.00 <500 - 53000
677.50 678.00 0.50 <500 - 660
AR-19-236c4 327 -65 699.50 N/A 463.00 463.50 0.50 <500 - 1200
473.50 474.00 0.50 <500 - 800
477.00 478.00 1.00 <500 - 12000
483.00 483.50 0.50 <500 - 1400
490.00 490.50 0.50 <500 - 2000
501.00 502.00 1.00 <500 - 2300
509.00 509.50 0.50 <500 - 2700
515.00 517.00 2.00 <500 - 6800
519.50 533.00 13.50 <500 - 61000
548.00 548.50 0.50 <500 - 620
589.00 589.50 0.50 <500 - 820
594.00 599.00 5.00 <500 - 1800
607.00 609.50 2.50 <500 - 980
616.50 618.00 1.50 <500 - 1500
622.00 624.00 2.00 <500 - 21000
631.50 632.50 1.00 <500 - 1100
635.00 651.50 16.50 <500 - 24000
658.00 665.50 7.50 <500 - 61000
671.00 672.00 1.00 <500 - 3400
AR-19-237c1 327 -65 705.50 128.00 302.00 302.50 0.50 <500 - 560
496.00 497.00 1.00 <500 - 2300
532.50 533.00 0.50 <500 - 1800
545.50 549.50 4.00 <500 - 29000
556.50 558.50 2.00 <500 - 11500
565.50 567.00 1.50 <500 - 6000
570.50 571.50 1.00 <500 - 32000
640.00 645.50 5.50 <500 - 61000
648.00 664.00 16.00 <500 - 52000
667.00 667.50 0.50 <500 - 1200
671.50 672.00 0.50 <500 - 700
677.50 684.50 7.00 <500 - 9800
690.00 690.50 0.50 <500 - 510
AR-19-237c2 327 -65 720.50 N/A 504.00 504.50 0.50 <500 - 2100
520.50 522.00 1.50 <500 - 13500
546.00 546.50 0.50 <500 - 750
554.50 555.00 0.50 <500 - 670
560.50 561.00 0.50 <500 - 1280
563.50 566.50 3.00 <500 - 910
570.00 571.00 1.00 560 - 12800
578.00 580.50 2.50 <500 - 3100
583.50 584.00 0.50 900 - 34000
639.00 648.50 9.50 <500 - 51000
651.00 670.50 19.50 <500 - 20500
678.00 684.00 6.00 <500 - 13600
686.50 688.00 1.50 <500 - 9300
718.00 718.50 0.50 <500 - 700
AR-19-237c3 327 -65 738.50 N/A 450.50 451.00 0.50 <500 - 720
510.00 510.50 0.50 <500 - 9200
526.00 526.50 0.50 <500 - 1100
554.00 560.00 6.00 <500 - 16000
565.00 568.00 3.00 <500 - 5700
573.50 575.50 2.00 <500 - 21000
581.00 583.00 2.00 <500 - 1800
587.00 588.00 1.00 <500 - 1100
595.50 596.00 0.50 <500 - 600
642.00 646.50 4.50 <500 - 3850
652.00 677.50 25.50 <500 - 61000
686.00 686.50 0.50 <500 - 750
691.00 692.50 1.50 <500 - 2900
696.50 697.50 1.00 600 - 13000
700.00 705.00 5.00 <500 - 5000
AR-19-238c1 327 -65 513.50 141.50 438.00 445.00 7.00 <500 - 6000
447.50 448.00 0.50 <500 - 540
454.00 455.50 1.50 <500 - 3700
458.50 463.50 5.00 <500 - 61000
466.50 467.00 0.50 1300 - 61000
471.50 482.50 11.00 <500 - 61000
487.50 491.00 3.50 <500 - 1000
498.00 501.00 3.00 <500 - 780
AR-19-238c2 327 -65 522.50 N/A 426.00 426.50 0.50 <500 - 850
448.50 450.50 2.00 <500 - 2700
455.00 456.50 1.50 <500 - 8300
466.00 467.00 1.00 <500 - 780
472.00 476.50 4.50 <500 - 56400
482.50 492.00 9.50 <500 - 61000
AR-19-238c3 327 -65 540.50 N/A 458.50 461.50 3.00 <500 - 9400
467.00 468.00 1.00 <500 - 8900
477.50 478.00 0.50 <500 - 1000
487.50 490.00 2.50 <500 - 42000
496.50 517.50 21.00 <500 - 61000
AR-19-238c4 327 -65 542.50 N/A 457.00 457.50 0.50 <500 - 2000
473.50 476.50 3.00 <500 - 44000
480.50 481.00 0.50 670 - 28000
499.50 503.00 3.50 <500 - 61000
506.50 522.50 16.00 <500 - 61000
AR-19-239c1 327 -65 729.50 133.00 229.50 230.00 0.50 <500 - 590
452.50 453.00 0.50 <500 - 520
479.00 479.50 0.50 <500 - 650
487.00 488.50 1.50 <500 - 2600
499.50 500.50 1.00 <500 - 3300
513.50 514.00 0.50 <500 - 6800
517.50 520.50 3.00 <500 - 26800
524.50 525.00 0.50 <500 - 650