Northwest Athabasca Joint Venture: NexGen's Joint Venture Partner Forum Uranium Corp, Reports Drill Results of 1.34% U3O8 Over 3

Northwest Athabasca Joint Venture: NexGen's Joint Venture Partner Forum Uranium 
Corp, Reports Drill Results of 1.34% U3O8 Over 3 Metres
From Shallow Depths at Zone A 
VANCOUVER, BRITISH COLUMBIA -- (Marketwired) -- 05/09/13 -- NexGen
Energy Ltd. (TSX VENTURE:NXE) ("NexGen" or the "Company") is pleased
to announce that its joint venture partner Forum Uranium Corp., has
reported drill results from Zone A and the Barney zone targets on the
Northwest Athabasca project. Results from the 30 metre intercept of
uranium mineralization at Otis West are still pending.  

--  Zone A- 3 metres of 1.34% U3O8, including 2.48% U3O8 over 0.5 metres at
    a depth of 90 metres. 
--  Zone A- Mineralization associated with a 1km long NW trending fault. 
--  Barney- 2.32% U3O8 over 0.5 metres. 

Zone A 
Zone A lies on the north side of the Maurice Bay deposit(i)
(historical resource of 1.5 million pounds of uranium grading 0.6%
U3O8) and is hosted mainly within basement rocks along a major NW
trending fault (Figure 1). The mineralization within NWA-65 and
NWA-66 appears to be associated with this fault which has a strike
length of at least 1 kilometre. 

Table 1: Significant assay results from the Zone A Drill holes. 
Hole Number         From          To    Width(ii)       Grade
                 (Metres)    (Metres)    (Metres)    (% U3O8)
NWA-65              80.5        83.5         3.0       0.14%
NWA-66              88.5        91.5         3.0       1.34%
includes            90.0        91.5         1.5       1.86%
includes            91.0        91.5         0.5       2.48%
(ii) Downhole width

Previous drill holes on Zone A completed in 1978 (MAU-543 and
MAU-545) intersected 6m of 5.65% U3O8 from 113 to 119m and 3m of
1.08% U3O8 from 113 to 116m respectively, giving the high-grade
portion of the mineralized zone an interpreted vertical extent of at
least 30.5 metres. Further exploration along the strike of this
structure is strongly recommended. 
Five holes were drilled on the Barney target to follow up on
mineralization encountered in four holes in Barney North and to
further test the gravity low on Barney South. Drill hole NWA-53
intersected 0.5m of 2.32% U3O8
 from 169 to 169.5m in a graphitic
shear. Follow-up drilling is recommended for up-dip extensions and on
strike to the east.  
Maurice Bay Deposit(i) 
A 1.5 million pound historical uranium resource grading 0.6% U3O8 for
the Maurice Bay deposit, as reported by Saskatchewan Industry and
Resources, Miscellaneous Report 2003-7 has not been calculated or
classified under the specifications of National Instrument 43-101 and
should not be relied upon. 
Note: To view Figures 1 and 2 associated with this release, please
click the following link: 
Quality Assurance and Quality Control 
Core samples are collected and shipped in sealed containers to the
Saskatchewan Research Council, an ISO/IEC 17025:2005 (CAN-P-4E)
certified laboratory for geochemical analysis using the Uranium ICP
Package. This package is the preferred analytical technique for
detecting uranium and pathfinder elements in the alteration halos of
unconformity-type uranium deposits in the Athabasca Basin.  
Ken Wheatley, P.Geo. (Saskatchewan, NWT/Nunavut), Forum's Vice
President, Exploration, "qualified person" for the purposes of
National Instrument 43-101 - Standards of Disclosure for Mineral
Projects has reviewed and approved the contents of this news release. 
NW Athabasca Joint Venture 
The NW Athabasca project is a joint venture between NexGen Energy
Ltd. and Forum Uranium Corp., as to 60% and Cameco Corporation as to
27.5% and AREVA Resources Canada Inc. as to 12.5%.  
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 exploration
professionals with a track record in the discovery of
unconformity-style uranium deposits in Canada. 
NexGen owns a portfolio of uranium exploration assets in the
Athabasca Basin, Saskatchewan, Canada, including, an option to earn a
70% interest in the Radio Project, immediately adjacent to Rio
Tinto's Roughrider Deposit and a 100% interest in Rook 1, immediately
adjacent to the north east of Patterson Lake South. 
Forward-Looking Information 
This news release contains "forward-looking information" within the
meaning of applicable Canadian securities laws. Generally, but not
always, forward looking information is identifiable by the use of
words such as "expects" "anticipates", "believes", "projects",
"plans", and similar expressions. Forward-looking information is
prospective and by its nature requires the Company to make certain
assumptions and is subject to inherent risks and uncertainties. Such
information is not a guarantee of future performance and undue
reliance should not be placed on forward-looking information.
Although the assumptions made by the Company in providing forward
looking information are considered reasonable by management at the
time the forward-looking information is given, there can be no
assurance that such assumptions will prove to be accurate.
Forward-looking information also involves known and unknown risks and
uncertainties, which may cause actual results in future periods to
differ materially from any projections of future results expressed or
implied by such forward-looking information, including the
speculative nature of mineral exploration. There can be no assurance
that forward-looking information will prove to be accurate, as actual
results and future events could differ materially from those
anticipated, estimated or intended. NexGen 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. The reader is cautioned not to place undue reliance on
forward-looking information. 
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. 
NexGen Energy Ltd.
Leigh Curyer
Chief Executive Officer
+61 409 679 104 
Kin Communications
604 684 6730
Toll free 1 866 684 6730
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