Significant Northeast Expansion and Massive Pitchblende Discovered in the A3 at Arrow

NexGen Energy Ltd. (“NexGen” or the “Company”) (TSX:NXE, OTCQX:NXGEF) is pleased to report results from 18 drill holes from the on-going winter 2017 drilling program on our 100% owned, Rook I property, Athabasca Basin, Saskatchewan.
Highlights:
Northeast A3 Sheer

• Step out scissor hole AR-17-136c2 (170 m northeast and up-dip from AR-15-57c2 and 70 m northeast and up-dip from the edge of the A3 High Grade Domain) intersected 26.0 m of total composite mineralization including 6.7 m of total composite off-scale radioactivity (>10,000 to >61,000 cps) featuring 5.3 m of continuous massive to semi-massive pitchblende including 2.0 m at a minimum-of-greater-than 61,000 cps within a 59.0 m section (399.5 to 458.5 m). This hole is marked by dense accumulations of massive to semi-massive pitchblende mineralization and is the strongest zone of mineralization encountered in the A3 shear to date. This newly discovered area is open to the northeast.
• Infill scissor hole AR-17-121c2 (75 m up-dip from AR-15-57c2) intersected 65.5 m of total composite mineralization including 9.7 m of total composite off-scale radioactivity (>10,000 to >61,000 cps) featuring 0.5 m at a minimum-of-greater-than 61,000 cps within an 86.5 m section (473.5 to 560.0 m).
• Infill scissor hole AR-17-121c1 (45 m up-dip from AR-15-57c2) intersected 81.0 m of total composite mineralization including 6.0 m of total composite off-scale radioactivity (>10,000 to >61,000 cps) within a 106.0 m section (481.0 to 587.0 m).

Garrett Ainsworth, Vice-President, Exploration and Development, commented:

Drilling has been very successful in significantly expanding mineralization at Arrow on several fronts.  The discovery of massive to semi-massive pitchblende mineralization encountered in hole AR-17-136c2 in the A3 shear looks identical to that found in the A2 Sub-Zone. The higher grade A2 Sub-Zone is located southwest of an interpreted cross cutting structure, and it appears that a similar Sub-Zone may be developing within the A3 shear to the northeast of this same cross cutting structure.  Further step outs into the northeast gap of the A2 shear have returned additional high grade intervals, where we expect mineralization to continue further northeast and down-dip to drill hole AR-15-50.  Scissor drill holes stepping out and within the A2 and A3 High Grade Domains continues to exceed our expectations.
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