NexGen Energy (NXE-V) March 17, 2015 is pleased to report the assay results for the first four drill holes (angled holes AR-15-33, -34b, and -35, and vertical hole AR-15-36) from the ongoing winter 2015 program at the Arrow zone on the 100% owned Rook I property, Athabasca Basin, Saskatchewan. The results include those from angled drill hole AR-15-34b, which shows continuous, broad, high-grade uranium mineralization within the A2 mineralized shear. Assays are presented in Table 1, a plan map of the Arrow zone is shown in Figure 1, cross and long sections highlighting AR-15-34b are shown in Figures 2 and 3, respectively.

Highlights:
Angled holes
AR-15-34b assays 70.0 m at 2.2% U3O8 (522.0 to 592.0 m) including 11.0 m at 8.95% U3O8 (560.5 to 571.5 m);
AR-15-35 assays 18.5 m at 0.33% U3O8 (394.5 to 413.0 m), and 12.0 m at 0.49% U3O8 (553.5 to 565.5 m);
Vertical hole
AR-14-36 assays 51.0 m at 0.32% U3O8 (167.0 to 218.0 m);
The Arrow Zone is currently 515 m x 215 m with the vertical extent of mineralization commencing from 100 m and extending down to 820 m. It remains open in all directions and at depth.
Garrett Ainsworth, NexGen's Vice-President, Exploration and Development, commented "This first set of assays from the winter 2015 drill program at the Arrow zone have exceeded our expectations. The A2 mineralized shear continues to impress us with what is now our widest high grade interval returned to date from angled drill hole AR-15-34b. The high grade uranium core associated with the A2 structure within Arrow is centered on drill hole AR-14-30 (see October 6th, 2014 news release), and is developing at a staggering pace with this important 30 m step-out to the southwest."
Leigh Curyer, CEO commented, "AR-15-34b is the broadest continuous intercept greater than 2% U3O8 to date. Drilling at Arrow will continue to define this high grade zone within the A2 shear and in parallel test the newly discovered high grade zone within the A3 shear (see press release dated February 24, 2015)."
Table 1: Winter 2015 Drill Hole Composited Mineralized Intervals
Drill Hole
| Athabasca Group -
Basement
Unconformity Depth
(m)
| SRC Geoanalytical Results
| Hole ID
| Azimuth
| Dip
| Total
Depth
(m)
| From (m)
| To (m)
| Interval
(m)
| U3O8 (wt%)
| AR-15-33
| 320
| -70
| 663.00
| 141.00
| 440.50
| 450.50
| 10.00
| 0.06
| 463.00
| 470.50
| 7.50
| 0.06
| 473.00
| 476.00
| 3.00
| 0.06
| 506.50
| 508.00
| 1.50
| 0.18
| 512.50
| 532.00
| 19.50
| 0.06
| 548.50
| 561.00
| 12.50
| 0.26
| AR-15-34b
| 320
| -70
| 798.00
| 130.50
Including
| 396.50
| 397.00
| 0.50
| 0.02
| 399.50
| 400.50
| 1.00
| 0.03
| 408.00
| 409.00
| 1.00
| 0.04
| 414.50
| 415.00
| 0.50
| 0.02
| 418.00
| 428.00
| 10.00
| 0.10
| 436.00
| 438.50
| 2.50
| 0.06
| 441.00
| 442.50
| 1.50
| 0.06
| 445.00
| 452.50
| 7.50
| 0.08
| 458.00
| 459.00
| 1.00
| 0.01
| 462.50
| 464.50
| 2.00
| 0.11
| 468.50
| 491.00
| 22.50
| 0.03
| 494.00
| 496.50
| 2.50
| 0.02
| 508.50
| 518.00
| 9.50
| 0.03
| 522.00
| 592.00
| 70.00
| 2.20
| 560.50
| 571.50
| 11.00
| 8.95
| 596.50
| 602.00
| 5.50
| 0.10
| 609.50
| 610.00
| 0.50
| 0.04
| 619.90
| 620.90
| 1.00
| 0.03
| 630.50
| 631.00
| 0.50
| 0.04
| 637.50
| 638.50
| 1.00
| 0.08
| 665.50
| 668.00
| 2.50
| 0.08
| 672.00
| 675.50
| 3.50
| 0.02
| 678.00
| 683.50
| 5.50
| 0.02
| 686.50
| 690.50
| 4.00
| 0.06
| 693.00
| 693.50
| 0.50
| 0.07
| 697.00
| 729.00
| 32.00
| 0.12
| 739.00
| 739.50
| 0.50
| 0.10
| 763.00
| 764.00
| 1.00
| 0.01
| AR-15-35
| 320
| -75
| 660.00
| 117.00
| 355.00
| 356.00
| 1.00
| 0.04
| 371.50
| 384.50
| 13.00
| 0.07
| 389.50
| 391.50
| 2.00
| 0.03
| 394.50
| 413.00
| 18.50
| 0.33
| 425.50
| 426.50
| 1.00
| 0.05
| 434.00
| 435.00
| 1.00
| 0.04
| 438.50
| 439.50
| 1.00
| 0.05
| 451.50
| 453.50
| 2.00
| 0.03
| 456.00
| 459.00
| 3.00
| 0.02
| 461.50
| 466.50
| 5.00
| 0.03
| 470.00
| 515.00
| 45.00
| 0.14
| 553.50
| 565.50
| 12.00
| 0.49
| 568.50
| 569.00
| 0.50
| 0.04
| 572.00
| 573.50
| 1.50
| 0.13
| AR-15-36
| 320
| -90
| 495.00
| 96.00
| 100.50
| 103.00
| 2.50
| 0.06
| 111.00
| 157.00
| 46.00
| 0.06
| 160.00
| 161.00
| 1.00
| 0.01
| 167.00
| 218.00
| 51.00
| 0.32
| 220.50
| 223.00
| 2.50
| 0.04
| 236.50
| 237.00
| 0.50
| 0.04
| 244.50
| 245.00
| 0.50
| 0.03
| 248.00
| 309.50
| 61.50
| 0.10
| 319.00
| 339.50
| 20.50
| 0.05
| 344.00
| 377.50
| 33.50
| 0.03
|
Composite parameters:
Minimum thickness 0.5 m downhole Cutoff grade 0.01% U3O8 (weight %) Maximum internal dilution 2.00 m downhole U3O8 analyzed by ICP-OES at SRC laboratories, Saskatoon All depths and intervals are meters downhole Split core samples were taken systematically, and intervals were submitted to SRC Geoanalytical Laboratories (an SCC ISO/IEC 17025: 2005 Accredited Facility) of Saskatoon for analysis. All samples were analyzed using ICP-MS for trace elements on the partial and total digestions, ICP-OES for major and minor elements on the total digestion, and fusion solution of boron by ICP-OES. Mineralized samples were analyzed for U3O8 by ICP-OES and gold by fire assay.
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 and basement hosted uranium deposits in Canada.
NexGen owns a portfolio of highly prospective uranium exploration assets in the Athabasca Basin, Saskatchewan, Canada, including a 100% interest in Rook 1, location of the Arrow Zone, and an option to earn a 70% interest in the Radio Project, immediately adjacent to Rio Tinto's Roughrider Deposit.
The technical information in this news release has been prepared in accordance with the Canadian regulatory requirements set out in National Instrument 43- 101 and reviewed on behalf of NexGen Energy Ltd., by Garrett Ainsworth, P.Geo., Vice President – Exploration & Development, a qualified person.
Leigh Curyer, Chief Executive Officer NexGen Energy Ltd. +1 604 428 4112 lcuryer@nexgenenergy.ca www.nexgenenergy.ca


Image with caption: "Figure 1: Plan view of Arrow Zone (CNW Group/NexGen Energy Ltd.)". Image available at: http://photos.newswire.ca/images/download/20150317_C7548_PHOTO_EN_13298.jpg
Image with caption: "Figure 2: Cross Section of L4460N, Arrow Zone (CNW Group/NexGen Energy Ltd.)". Image available at: http://photos.newswire.ca/images/download/20150317_C7548_PHOTO_EN_13299.jpg
Image with caption: "Figure 3: Long Section of A2 Shear, Arrow Zone (CNW Group/NexGen Energy Ltd.)". Image available at: http://photos.newswire.ca/images/download/20150317_C7548_PHOTO_EN_13300.jpg
Kin Communications, Tel: 604 684 6730, Toll free 1 866 684 6730, Email: nxe@kincommunications.com , Website: nexgenenergy.ca |