NexGen Releases Second Batch of Assay Results from the 2019 Feasibility Stage Drilling Program, Intersects High-Grade Uranium in All A2 and A3 High-Grade Domain Targets
NexGen Releases Second Batch of Assay Results from the 2019
Feasibility Stage Drilling Program, Intersects High-Grade Uranium in All
A2 and A3 High-Grade Domain Targets
Vancouver, BC, November 20, 2019 – NexGen Energy Ltd. (“NexGen” or the “Company”) (TSX: NXE, NYSE MKT:
NXE) is pleased to report assay results for an additional twenty holes from the Company’s recently completed
Feasibility-stage drilling program at the 100% owned, Rook I property in the Athabasca Basin, Saskatchewan.
The 2019 drilling program targeted the A2 and A3 High-Grade Domains for the highest confidence resource
within the Pre-Feasibility Study (“PFS”) mine design (see News Release dated November 5, 2018) at a drill hole
spacing of between 9.0 m and 17.0 m (based on a geostatistical data spacing report compiled by Clayton V.
Deutsch from Resource Modeling Solutions).
The density of drilling intersecting the A2 and A3 Indicated Domains results in a high degree of confidence in the
mineralized contacts, domain geometry, domain orientation, grade and volume of mineralization. The A2 and A3
Indicated Domains from the PFS have been intersected by 309 drill holes from 133 collars (inclusive of 124 drill
holes from 48 collars in 2019): 86 piercing the Indicated Domains from the northwest, 221 from the southeast,
and 2 vertical intersections in 2014 (see Figures 1, 2, and 3). All 2019 drill holes were collared at a steep
inclination, then shallowed out between -55° and -60° before intersecting the target by utilizing the latest in
directional drilling technology.
The results below highlight intersections through the A2 and A3 High-Grade Domains only designed to infill the
A2 and A3 domains from indicated to measured resource definition. For complete hole results please see Table
1.
A2 High-Grade Domains
AR-19-229c2 intersected 48.0 m at 3.81% U3O8 (624.0 to 672.0 m) including 6.0 m at 13.50% U3O8 (627.0
to 633.0 m). The target was intersected at a dip of -54.1°, approximately 10.0 m along strike to the
southwest of AR-16-096c3 (21.5 m at 2.33% U3O8);
AR-19-229c4 intersected 41.0 m at 3.42% U3O8 (612.5 to 653.5 m) including 7.0 m at 15.48% U3O8 (639.5
to 646.5 m). The target was intersected at a dip of -55.2°, approximately 9.0 m along strike to the
southwest of AR-16-096c1 (24.0 m at 5.88% U3O8 including 8.0 m at 15.44% U3O8);
AR-19-230c3 intersected 21.0 m at 5.06% U3O8 (593.5 to 614.5 m) including 4.0 m at 18.38% U3O8 (594.5
to 598.5 m). The target was intersected at a dip of -57.4°, approximately 10.0 m up-dip from AR-16-
092c1 (58.0 m at 0.99% U3O8 and an additional 19.5 m at 1.43% U3O8);
AR-19-234c2 intersected 32.0 m at 3.08% U3O8 (471.5 to 503.5 m) including 13.0 m at 7.33% U3O8 (486.5
to 499.5 m). The target was intersected at a dip of -54.1°, approximately 10.0 m along strike to the
southwest of AR-16-096c3 (21.5 m at 2.33% U3O8);
AR-19-235c1 intersected 29.0 m at 5.45% U 3O8 (561.5 to 590.5 m) including 11.0 m at 14.09% U 3O8
(568.5 to 579.5 m). The target was intersected at a dip of -57.2°, approximately 12.0 m down-dip from
AR-16-091c4 (43.5 m at 4.95% U3O8 including 12 m at 16.7% U3O8);
A3 High-Grade Domains
AR-19-231c2 intersected 41.0 m at 1.61% U3O8 (505.5 to 546.5 m) including 3.0 m at 15.64% U3O8 (528.5
to 531.5 m). The target was intersected at a dip of -60.0°, approximately 7.0 m up-dip from AR-17-126c2
(28.0 m at 0.49% U3O8);
AR-19-232c3 intersected 24.0 m at 1.22% U3O8 (552.0 to 576.0 m) including 2.0 m at 11.99% U3O8 (556.0
to 558.0 m). The target was intersected at a dip of -56.1°, approximately 7.0 m up-dip from AR-16-105c2
(14.0 m at 1.17% U3O8).
Leigh Curyer, Chief Executive Officer, commented: “These exceptional results once again highlight the unique
resource characteristics of Arrow. Figures 1-5 of this news release provide an excellent perspective of the drilling
density at Arrow. The team continues to advance all aspects of the Feasibility Study scheduled for mid H1 2020
and in parallel the studies for inclusion into the Environmental Assessment scheduled for submission in Q3/2020.
Another 80 assays from feasibility drilling are pending release in the coming months.”
Troy Boisjoli, Vice-President, Operations and Project Development, commented: “The second batch of assay
results from our recently completed Phase I Feasibility-stage drill program demonstrates the exceptional high-
grade nature of mineralization across the A2 and A3 domains representing the PFS mine plan design. The Arrow
Deposit now has 309 drill holes intersecting the A2 and A3 Indicated Domains at a 9.0 to 17.0 m spacing. From
discovery on February 14th, 2014 through the 2019 Phase I program, focused resource development drilling has
confirmed our confidence in the grade, volume, and continuity of Arrow. In my experience the density and quality
of drilling results is unparalleled with respect to Feasibility level mine design, and mine production.”
Development, Permitting, Appointments, Activities & Financial
The completed winter 2019 drilling program comprised 131 holes totaling 57,282.4 m. 117 drill holes,
totaling 50,968 m (inclusive of 32 m in overcuts) focused on infill feasibility study drilling and 14 drill
holes totaling 6,314.4 m primarily designed to test the geotechnical and hydrogeological characteristics
of the rock mass in areas of proposed mine workings and UGTMF.
A total of 80 assays remain pending from the Feasibility-stage drilling program including 14 dual purpose
holes that were drilled to rest geotechnical and hydrogeological characteristics.
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 November 19, 2019, the Company had cash-on-hand of approximately $65 million which fully
funds NexGen for all drilling, feasibility and development programs planned this year.
Figure 1 below displays the A2 intersection in AR-19-229c4 7.0 m at 15.48% U3O8 within competent host rock
(yellow numbers indicate grade % U3O8). Drill hole locations are shown in Figure 5. Full drilling results can be
found in Table 1. Drill hole descriptions can be found at www.nexgenenergy.ca
Figure 1: AR-19-229c4 - High Grade A2 Intersection in Competent Host Rock
Figure 2: Plan View - A2 and A3 Indicated Domains
Figure 3: Cross Section (Looking Northeast) - A2 and A3 Indicated Domains
Figure 4: Long Section (Looking Northwest) - A2 and A3 Indicated Domains
Figure 5: Arrow Deposit Drill Hole Locations
Table 1: Arrow Deposit Drill Hole Data
Drill Hole
Athabasca Group - Basement
Unconformity Depth (m)
SRC Geoanalytical Results
Hole ID Azimuth Dip
Total
Depth
(m)
From
(m) To (m) Width
(m)
U3O8
(wt%)
AR-19-225c3 327 -65 637 N/A 452.50 454.50 2.0 0.70
480.50 481.50 1.0 0.08
488.00 490.00 2.0 0.03
494.00 502.00 8.0 0.03
507.00 508.00 1.0 0.02
515.00 517.00 2.0 0.02
521.00 528.00 7.0 0.03
535.00 537.00 2.0 0.01
559.00 560.00 1.0 0.01
586.50 602.50 16.0 6.95
incl. 586.50 597.50 11.0 9.98
610.50 625.50 15.0 0.02
AR-19-229c1 327 -65 693 132.8 467.00 468.00 1.0 0.01
473.00 477.00 4.0 0.06
488.00 489.00 1.0 0.33
500.00 539.00 39.0 0.40
543.00 550.00 7.0 1.81
incl. 546.00 550.00 4.0 3.10
570.00 570.50 0.5 0.04
619.50 621.50 2.0 0.01
628.50 634.50 6.0 4.43
incl. 629.50 632.50 3.0 8.26
641.50 645.50 4.0 0.54
650.50 677.50 27.0 1.45
incl. 659.50 668.50 9.0 2.53
AR-19-229c2 327 -65 699 N/A 494.50 495.00 0.5 0.06
500.50 501.50 1.0 0.16
504.50 508.50 4.0 0.14
513.50 514.50 1.0 0.18
517.50 519.50 2.0 0.44
524.50 536.50 12.0 0.06
541.50 545.50 4.0 0.62
548.50 562.50 14.0 0.67
incl. 550.50 555.50 5.0 1.57
573.50 577.50 4.0 0.03
624.00 672.00 48.0 3.81
incl. 627.00 633.00 6.0 13.50