NexGen Concludes Highly Successful Summer Development & Exploration Drilling

November 30, 2017 | By forimmediaterelease.net - | Filed in: Press Releases.

Drilling at Arrow has intersected strong mineralization in multiple areas including step-out holes drilled in key mineral resource expansion areas in the southwest gap, northeast gap and within the A3 shear. The Arrow Deposit remains open in most directions.

A3 Step-Outs

  • AR-17-159c1 intersected 44.0 m of total composite mineralization including 13.85 m of total composite off-scale radioactivity (>10,000 to >61,000 cps) within a 90.0 m section (377.0 to 467.0 m) in the A3 shear.
  • AR-17-159c2 intersected 54.5 m of total composite mineralization including 11.8 m of total composite off-scale radioactivity (>10,000 to >61,000 cps) within a 101.0 m section (375.5 to 476.5 m) in the A3 shear.

A3 Infill

  • AR-17-164c1 intersected 47.5 m of total composite mineralization including 5.0 m of total composite off-scale radioactivity (>10,000 to >61,000 cps) within a 147.0 m section (497.5 to 644.5 m) in the A3 shear.

Northeast Gap Step-Out

  • AR-17-171c3 intersected 45.5 m of total composite mineralization including 1.45 m of total composite off-scale radioactivity (>10,000 to 23,000 cps) within a 183.0 m section (749.5 to 932.5 m) in the A1 and A2 shears. The hole is 250 m northeast and down-dip of the mineral resource domains.

Southwest Gap Step-Out

  • AR-17-161c2 intersected 30.0 m of total composite mineralization including 1.2 m of total composite off-scale radioactivity (>10,000 to >61,000 cps) within a 314.0 m section (626.5 to 940.5 m) in the A3 though A5 shears. The hole is 54 m southwest and down-dip of the mineral resource domains.

Drill hole locations and longsections are shown in Figures 1 to 4. Drill hole descriptions can be found on our website at www.nexgenenergy.ca

South Arrow Highlights:

Systematic drilling at the recently discovered South Arrow has intersected uranium mineralization at continued shallow depths. South Arrow is comprised of multiple, stacked mineralized horizons and high grade mineralization occurs as accumulations of semi-massive to massive pitchblende similar to the Arrow Deposit. South Arrow remains largely open and off-scale radioactivity has been intersected over a strike length of currently 290 m.

  • AR-17-178c1 intersected 7.5 m of total composite mineralization including 1.85 m of total composite off-scale radioactivity (>10,000 to >61,000 cps) within a 170.5 m section (149.0 to 319.5 m). The off-scale mineralized section begins just 142 m below surface.
  • AR-17-170c1 intersected 12.0 m of total composite mineralization including 0.5 m of total composite off-scale radioactivity (>10,000 to >26,000 cps) within a 15.0 m section (243.0 to 258.0 m).
  • AR-17-174c1 intersected 35.0 m of total composite mineralization including 0.15 m of total composite off-scale radioactivity (>10,000 to >26,600 cps) within a 161.5 m section (225.5 to 387.0 m).
  • AR-17-184c1 intersected 11.0 m of total composite mineralization including 0.5 m of total composite off-scale radioactivity (>10,000 to >21,000 cps) within an 11.0 m section (134.0 to 145.0 m).

Development, Activities & Financial:

  • The eight drill rig summer development and exploration program has concluded. The program consisted of 82 infill, expansion, exploration and geotechnical holes totaling 44,781 m of diamond drilling. Assays remain pending for all holes. An additional five shallow geotechnical holes were completed with a sonic drill rig to test surface and subsurface conditions for future site infrastructure.
  • Planning for the winter 2018 development and exploration program has begun in advance of the maiden Pre-Feasibility Study to be published Q3/2018.
  • The Company has cash on hand of approximately $170 million.

Garrett Ainsworth, Vice-President, Exploration and Development, commented: “The summer 2017 drill program objectives have been successfully achieved in balancing indicated resource growth in the A3 High Grade Domain while expanding inferred resource growth at Arrow. The added bonus of discovery and expansion of South Arrow suggests significant potential for resource growth within close proximity to the Arrow Deposit. A recently completed ground 3D resistivity survey over South Arrow focusing to the south west has highlighted the significant prospectivity of the Patterson Corridor along strike from Arrow and South Arrow which is yet to be tested.”

Leigh Curyer, Chief Executive Officer, commented:  “The 2017 program has continued to demonstrate Arrow’s resource growth and incredible robustness with drilling inside and outside the 2016 grade shells. The results have provided valuable data with respect to future resource growth opportunities and potential mine development. With assay results pending, plans are well underway for an exciting 2018 targeting continued resource definition and expansion at Arrow and South Arrow, together with advanced development studies leading into the publication of a maiden Pre-Feasibility Study in Q3 2018.”

Table 1: Arrow Deposit Drill Hole Data 

Drill Hole

Athabasca
Group –
Basement
Unconformity
Depth (m)

Handheld Scintillometer Results (RS-120)

Hole ID

Azimuth

Dip

Total
Depth
(m)

From (m)

To (m)

Width (m)

CPS Range

AR-17-146c4

327

-70

978.5

110.4

678.00

678.50

0.50

<500 –  630

715.50

720.00

4.50

<500 –  6270

729.50

730.00

0.50

<500 –  575

736.50

741.00

4.50

<500 –  1800

759.00

760.00

1.00

<500 –  1300

778.00

778.50

0.50

<500 –  3800

793.00

796.00

3.00

<500 –  1450

822.00

824.00

2.00

<500 –  2300

831.00

834.50

3.50

<500 –  2610

837.00

838.00

1.00

<500 –  1250

908.00

908.50

0.50

<500 –  1600

914.50

915.00

0.50

<500 –  530

AR-17-154c3

327

-70

870.5

120.6

597.50

598.00

0.50

<500 –  600

652.00

653.50

1.50

<500 –  2850

701.50

704.50

3.00

<500 –  750

AR-17-154c4

327

-70

945.5

120.6

594.00

594.50

0.50

<500 –  1150

678.50

680.50

2.00

<500 –  5600

714.50

715.00

0.50

<500 –  800

717.50

721.50

4.00

<500 –  6800

724.50

725.00

0.50

800 –  1800

729.50

739.50

10.00

<500 –  5500

745.00

752.00

7.00

<500 –  2600

799.50

800.00

0.50

<500 –  1700

841.00

841.50

0.50

<500 –  620

865.00

869.00

4.00

<500 –  3100

889.50

890.00

0.50

<500 –  820

AR-17-155c3

327

-70

912.5

128.6

437.50

438.00

0.50

<500 –  970

466.50

468.00

1.50

<500 –  4050

471.00

472.00

1.00

<500 –  620

475.50

480.00

4.50

<500 –  8900

494.00

495.00

1.00

<500 –  7800

500.00

501.00

1.00

<500 –  3600

523.00

524.50

1.50

<500 –  2100

534.00

535.00

1.00

<500 –  4600

547.00

550.00

3.00

<500 –  10500

563.00

565.00

2.00

<500 –  8500

568.00

571.00

3.00

<500 –  1500

583.50

587.00

3.50

<500 –  2500

611.00

612.00

1.00

<500 –  >61000

615.50

616.50

1.00

<500 –  41500

619.00

626.00

7.00

<500 –  59000

648.50

649.50

1.00

<500 –  510

658.00

658.50

0.50

<500 –  1530

661.00

662.50

1.50

<500 –  1310

665.50

676.00

10.50

<500 –  10100

681.50

685.50

4.00

<500 –  3100

689.50

695.50

6.00

<500 –  9680

701.00

702.50

1.50

500 –  30500

756.50

757.00

0.50

630 –  1400

760.00

762.00

2.00

<500 –  6300

819.50

820.50

1.00

<500 –  2500

825.50

827.50

2.00

<500 –  1100

831.50

833.00

1.50

<500 –  10100

AR-17-156c2

327

-70

858.5

N/A

650.00

651.00

1.00

<500 –  860

654.50

655.00

0.50

<500 –  3700

658.00

658.50

0.50

<500 –  610

679.50

680.00

0.50

<500 –  3000

685.00

686.50

1.50

<500 –  2200

710.00

710.50

0.50

<500 –  520

714.50

715.00

0.50

<500 –  2900

718.00

725.00

7.00

<500 –  15000

771.50

772.00

0.50

<500 –  650

813.50

815.00

1.50

<500 –  1250

AR-17-156c3

327

-70

903.5

N/A

703.00

703.50

0.50

<500 –  5600

720.50

721.00

0.50

<500 –  510

725.50

730.50

5.00

<500 –  10300

735.50

741.00

5.50

<500 –  5890

743.50

748.00

4.50

<500 –  7400

764.50

777.00

12.50

<500 –  24300

781.00

783.50

2.50

<500 –  4700

813.50

815.00

1.50

<500 –  3300

817.50

818.50

1.00

<500 –  1080

822.00

823.00

1.00

<500 –  1000

AR-17-156c4

327

-70

936.5

N/A

363.50

364.00

0.50

<500 –  600

659.00

660.00

1.00

<500 –  10300

680.00

680.50

0.50

<500 –  1600

692.50

693.00

0.50

<500 –  610

718.50

719.00

0.50

<500 –  3700

723.00

724.00

1.00

<500 –  10100

749.50

750.00

0.50

<500 –  650

757.50

758.50

1.00

<500 –  900

768.00

768.50

0.50

<500 –  860

773.50

779.00

5.50

<500 –  >61000

783.50

784.50

1.00

<500 –  7300

788.50

790.00

1.50

<500 –  1100

794.00

796.00

2.00

<500 –  2500

800.50

802.00

1.50

<500 –  1820

809.00

810.50

1.50

<500 –  1630

813.50

814.00

0.50

<500 –  525

818.00

825.50

7.50

<500 –  2090

891.00

891.50

0.50

<500 –  520

AR-17-156c5

327

-70

789.5

N/A

669.50

671.50

2.00

<500 –  700

675.00

675.50

0.50

<500 –  580

683.00

683.50

0.50

<500 –  590

701.00

708.00

7.00

<500 –  1790

721.00

722.50

1.50

<500 –  2130

AR-17-159c1

327

-70

507.0

131.6

377.00

378.00

1.00

<500 –  700

381.00

381.50

0.50

<500 –  550

388.50

390.50

2.00

<500 –  2550

395.50

396.50

1.00

<500 –  7200

404.00

407.00

3.00

<500 –  15000

410.50

415.50

5.00

<500 –  50000

418.50

424.00

5.50

<500 –  >61000

427.50

453.00

25.50

<500 –  >61000

466.50

467.00

0.50

<500 –  530

AR-17-159c2

327

-70

546.0

131.6

375.50

376.00

0.50

<500 –  590

391.00

398.50

7.50

<500 –  2200

403.00

404.00

1.00

<500 –  1000

422.50

423.50

1.00

<500 –  41000

429.50

472.50

43.00

<500 –  >61000

475.00

476.50

1.50

<500 –  1650

AR-17-161c1

327

-70

999.5

N/A

743.00

744.00

1.00

<500 –  1700

802.00

802.50

0.50

<500 –  1700

813.00

814.00

1.00

<500 –  800

822.50

823.00

0.50

<500 –  630

827.00

835.50

8.50

<500 –  >61000

848.00

848.50

0.50

<500 –  730

853.50

854.00

0.50

<500 –  2200

860.00

860.50

0.50

<500 –  630

AR-17-161c2

327

-70

990.5

N/A

626.50

627.00

0.50

<500 –  3000

699.00

699.50

0.50

<500 –  700

703.00

704.50

1.50

<500 –  2200

712.00

713.00

1.00

<500 –  900

800.00

811.00

11.00

<500 –  5800

818.00

819.00

1.00

<500 –  3300

852.00

853.50

1.50

<500 –  1000

863.00

869.50

6.50

<500 –  >61000

879.00

882.00

3.00

<500 –  27000

892.00

893.50

1.50

<500 –  1500

911.50

912.00

0.50

<500 –  700

939.00

940.50

1.50

<500 –  1100

AR-17-164c1

327

-70

942.5

126.6

130.00

130.50

0.50

<500 –  1000

424.50

425.00

0.50

<500 –  960

458.50

462.50

4.00

<500 –  1640

467.50

468.00

0.50

<500 –  1150

483.50

484.00

0.50

<500 –  510

487.00

488.50

1.50

<500 –  6330

497.50

500.50

3.00

<500 –  17000

505.00

513.50

8.50

<500 –  53000

519.50

528.00

8.50

<500 –  >61000

534.50

535.00

0.50

630 –  16000

545.50

550.00

4.50

<500 –  54000

554.50

555.00

0.50

<500 –  820

581.50

584.50

3.00

<500 –  32000

587.00

588.00

1.00

<500 –  3000

592.00

593.00

1.00

<500 –  1000

601.50

603.50

2.00

<500 –  1500

626.00

629.00

3.00

<500 –  1000

632.50

644.50

12.00

<500 –  3400

654.00

654.50

0.50

<500 –  800

662.50

668.00

5.50

<500 –  >61000

672.00

684.00

12.00

<500 –  4500

719.00

719.50

0.50

900 –  1800

745.00

746.00

1.00

<500 –  4700

773.50

777.00

3.50

<500 –  46000

808.50

810.00

1.50

<500 –  3300

823.00

823.50

0.50

<500 –  620

831.00

831.50

0.50

<500 –  580

841.00

841.50

0.50

<500 –  550

897.00

897.50

0.50

<500 –  610

AR-17-164c2

327

-70

654.5

126.6

426.50

427.00

0.50

<500 –  2000

451.50

452.00

0.50

<500 –  690

468.50

469.00

0.50

<500 –  560

485.50

487.00

1.50

<500 –  3850

503.00

503.50

0.50

500 –  15000

507.00

508.00

1.00

<500 –  11000

519.50

520.00

0.50

500 –  4500

532.50

533.00

0.50

<500 –  700

544.00

545.00

1.00

<500 –  18000

548.00

550.00

2.00

<500 –  12000

556.00

562.00

6.00

<500 –  47000

567.50

569.50

2.00

<500 –  20500

575.50

577.00

1.50

<500 –  15000

580.50

584.00

3.50

<500 –  18000

588.00

603.00

15.00

<500 –  >61000

608.00

609.00

1.00

<500 –  1600

614.50

615.00

0.50

<500 –  530

631.00

635.00

4.00

<500 –  2700

640.50

643.00

2.50

<500 –  1280

646.50

649.50

3.00

<500 –  1600

652.50

653.00

0.50

<500 –  740

AR-17-164c3

327

-70

549.5

126.6

445.50

448.00

2.50

<500 –  5500

456.50

457.00

0.50

700 –  3600

459.50

460.00

0.50

1200 –  9100

463.50

471.50

8.00

<500 –  6000

478.00

480.00

2.00

<500 –  4700

485.00

486.50

1.50

<500 –  2300

503.50

512.50

9.00

<500 – >61000

520.00

524.50

4.50

<500 –  2420

AR-17-167c1

327

-70

837.5

124.0

481.50

485.00

3.50

<500 –  1500

487.50

495.50

8.00

<500 –  >61000

530.00

534.00

4.00

<500 –  830

539.50

541.00

1.50

<500 –  750

544.50

545.00

0.50

<500 –  515

551.00

554.50

3.50

<500 –  2200

558.50

559.00

0.50

<500 –  640

566.50

582.50

16.00

<500 –  7800

589.50

590.00

0.50

<500 –  1300

593.00

595.50

2.50

<500 –  5800

600.50

601.00

0.50

<500 –  1800

627.00

630.50

3.50

<500 –  14000

637.00

637.50

0.50

<500 –  540

654.00

654.50

0.50

<500 –  1000

660.50

663.50

3.00

<500 –  2300

676.00

679.00

3.00

<500 –  2600

682.00

682.50

0.50

<500 –  540

732.50

733.00

0.50

<500 –  1600

780.00

785.00

5.00

<500 –  2900

AR-17-167c2

327

-70

723.5

124.0

460.00

460.50

0.50

<500 –  14000

467.00

470.50

3.50

<500 –  54500

483.50

484.00

0.50

<500 –  600

533.50

534.00

0.50

<500 –  660

538.00

540.50

2.50

<500 –  700

548.50

549.00

0.50

<500 –  550

553.00

554.00

1.00

<500 –  1200

559.50

563.00

3.50

<500 –  3900

573.50

574.00

0.50

<500 –  750

580.50

581.00

0.50

<500 –  510

615.00

618.00

3.00

<500 –  >61000

635.00

636.00

1.00

<500 –  9100

639.00

640.00

1.00

<500 –  2580

AR-17-167c3

327

-70

727.5

124.0

435.00

435.50

0.50

<500 –  550

441.50

444.50

3.00

550 –  7800

511.00

511.50

0.50

<500 –  505

519.50

520.00

0.50

<500 –  700

534.00

535.50

1.50

<500 –  5200

572.50

573.00

0.50

<500 –  1200

576.00

577.00

1.00

<500 –  900

693.00

693.50

0.50

<500 –  2100

AR-17-171c1

327

-70

920.0

119.3

714.00

715.50

1.50

<500 –  2300

719.00

719.50

0.50

<500 –  1200

727.00

728.00

1.00

<500 –  510

733.50

736.00

2.50

<500 –  1500

743.00

756.00

13.00

<500 –  12000

769.50

772.00

2.50

<500 –  6100

790.00

791.50

1.50

<500 –  11000

813.50

814.00

0.50

<500 –  550

856.00

859.50

3.50

<500 –  1500

863.00

864.50

1.50

<500 –  790

AR-17-171c2

327

-70

921.5

119.3

649.50

651.00

1.50

<500 –  1400

655.00

655.50

0.50

<500 –  720

708.50

716.00

7.50

<500 –  14800

718.50

719.00

0.50

<500 –  2200

734.00

734.50

0.50

<500 –  2500

740.00

743.00

3.00

<500 –  1460

746.50

756.50

10.00

<500 –  6800

760.00

764.00

4.00

<500 –  1100

767.00

768.50

1.50

<500 –  940

781.50

782.00

0.50

510 –  1350

805.00

805.50

0.50

<500 –  2200

808.50

812.50

4.00

<500 –  4800

821.00

823.50

2.50

<500 –  4600

842.00

843.00

1.00

<500 –  8600

893.50

894.00

0.50

<500 –  520

AR-17-171c3

327

-70

978.5

119.3

749.50

750.50

1.00

<500 –  1570

753.50

754.00

0.50

<500 –  630

766.00

769.00

3.00

<500 –  8000

776.50

777.00

0.50

<500 –  920

780.00

782.50

2.50

<500 –  3380

786.00

787.00

1.00

<500 –  6250

792.00

799.00

7.00

<500 –  3100

802.50

803.00

0.50

<500 –  610

817.50

823.00

5.50

<500 –  6100

826.50

827.00

0.50

<500 –  1400

829.50

830.00

0.50

<500 –  1010

897.00

902.00

5.00

<500 –  32700

906.50

923.50

17.00

<500 –  11200

927.50

928.00

0.50

<500 –  850

932.00

932.50

0.50

<500 –  730

AR-17-176c1

327

-70

540.0

125.1

301.50

302.00

0.50

<500 –  510

481.00

481.50

0.50

<500 –  1300

484.50

485.00

0.50

<500 –  970

489.50

491.00

1.50

<500 –  2200

506.00

506.50

0.50

<500 –  600

AR-17-176c2

327

-70

870.5

125.1

444.00

448.00

4.00

<500 –  23000

504.00

508.00

4.00

<500 –  6400

514.00

515.50

1.50

<500 –  17000

607.50

608.00

0.50

<500 –  1000

618.00

627.50

9.50

<500 –  28800

630.50

631.00

0.50

<500 –  510

649.50

664.50

15.00

<500 –  >61000

671.00

673.00

2.00

<500 –  920

675.50

688.00

12.50

<500 –  61000

692.00

701.00

9.00

<500 –  53600

705.50

707.50

2.00

<500 –  600

711.00

717.50

6.50

<500 –  16400

758.50

759.00

0.50

<500 –  2670

784.00

787.00

3.00

<500 –  890

812.50

815.00

2.50

<500 –  3780

AR-17-179c1

327

-68

639.5

130.5

457.50

459.00

1.50

<500 –  610

468.00

468.50

0.50

<500 –  660

494.50

495.00

0.50

<500 –  14300

501.50

503.50

2.00

<500 –  42500

507.50

508.00

0.50

<500 –  1900

511.00

511.50

0.50

<500 –  1100

526.00

536.00

10.00

<500 –  45000

540.00

540.50

0.50

<500 –  2900

543.00

543.50

0.50

<500 –  1550

546.00

547.00

1.00

<500 –  12000

551.00

554.00

3.00

<500 –  31000

556.50

559.50

3.00

<500 –  6200

564.50

565.00

0.50

<500 –  2160

569.50

572.50

3.00

<500 –  40000

579.00

582.00

3.00

<500 –  1480

589.00

591.50

2.50

<500 –  3100

596.50

598.00

1.50

<500 –  1200

600.50

601.50

1.00

<500 –  1100

604.50

606.50

2.00

<500 –  1000

610.00

612.50

2.50

<500 –  1500

616.00

617.00

1.00

<500 –  1670

AR-17-183c1

327

-68

630.5

139.6

479.50

482.00

2.50

<500 –  12000

489.00

489.50

0.50

<500 –  50000

500.00

501.00

1.00

<500 –  >61000

512.00

512.50

0.50

<500 –  1800

516.00

516.50

0.50

3000 –  >61000

523.50

524.00

0.50

<500 –  720

529.00

530.00

1.00

1000 –  48500

534.00

534.50

0.50

<500 –  5030

547.00

547.50

0.50

<500 –  3500

552.00

552.50

0.50

<500 –  >61000

558.50

578.00

19.50

<500 –  20000

GAR-17-002

327

-70

884.5

124.7

210.00

211.00

1.00

<500 –  620

464.00

465.00

1.00

<500 –  2400

495.00

496.50

1.50

<500 –  18500

519.50

520.50

1.00

<500 –  15000

524.00

525.00

1.00

<500 –  7100

530.00

531.50

1.50

<500 –  3600

543.50

545.50

2.00

<500 –  6100

550.50

551.50

1.00

550 –  8100

555.00

558.50

3.50

<500 –  15000

561.00

561.50

0.50

<500 –  1700

572.00

572.50

0.50

<500 –  875

589.00

596.50

7.50

<500 –  33000

599.00

601.50

2.50

<500 –  1600

604.00

605.50

1.50

<500 –  2060

612.50

619.00

6.50

<500 –  3500

623.00

625.00

2.00

<500 –  4300

631.00

634.50

3.50

<500 –  2500

646.50

648.50

2.00

<500 –  750

651.50

657.00

5.50

<500 –  1600

663.50

664.50

1.00

<500 –  1100

667.50

669.50

2.00

<500 –  >61000

672.50

686.00

13.50

<500 –  25000

691.00

698.50

7.50

<500 –  >61000

749.00

750.00

1.00

<500 –  27000

769.00

771.00

2.00

<500 –  42000

796.00

801.00

5.00

<500 –  3400

812.00

812.50

0.50

<500 –  2600

822.00

822.50

0.50

<500 –  860

827.00

830.00

3.00

<500 –  5000

839.00

839.50

0.50

<500 –  1200

GAR-17-005

80

-70

752.4

109.8

488.00

488.50

0.50

<500 –  650

650.00

650.50

0.50

<500 –  1100

657.50

659.50

2.00

<500 –  1300

670.50

671.00

0.50

<500 –  610

681.00

684.50

3.50

<500 –  2200

704.50

705.00

0.50

<500 –  570

Parameters:

  • Maximum internal dilution 2.00 m downhole
  • All depths and intervals are metres downhole, true thicknesses are yet to be determined
  • “Anomalous” means >500 cps (counts per second) total count gamma readings by gamma scintillometer type RS-120
  • “Off-scale” means >10,000 cps (counts per second) total count gamma readings by gamma scintillometer type RS-120
  • Where “Min cps” is <500 cps, this refers to local low radiometric zones within the overall radioactive interval
  • Directional drilling has often resulted in mineralization intersected at a more favourable and shallower dip

Table 2: South Arrow Drill Hole Data

Drill Hole

Athabasca
Group –
Basement
Unconformity
Depth (m)

Handheld Scintillometer Results (RS-120) 

Hole ID

Azimuth

Dip

Total
Depth
(m)

From (m)

To (m)

Width (m)

CPS Range

AR-17-170c1

315

-68

420.0

N/A

243.00

252.00

9.00

<500 –  26000

255.00

258.00

3.00

<500 –  2680

AR-17-172c1

315

-68

423.0

N/A

193.50

197.00

3.50

<500 –  1270

201.00

201.50

0.50

<500 –  910

227.50

235.50

8.00

<500 –  12700

324.00

325.00

1.00

<500 –  920

AR-17-173c1

315

-68

336.0

N/A

No Anomalous Radioactivity

AR-17-174c1

315

-68

441.0

N/A

225.50

228.50

3.00

<500 –  1340

232.50

246.50

14.00

<500 –  26600

256.50

257.00

0.50

<500 –  540

261.50

267.50

6.00

<500 –  1350

284.00

285.00

1.00

<500 –  1100

295.00

295.50

0.50

<500 –  520

327.50

328.50

1.00

<500 –  1470

363.00

364.00

1.00

<500 –  550

370.50

373.00

2.50

<500 –  810

381.50

387.00

5.50

<500 –  5390

AR-17-174c2

315

-68

510.0

N/A

220.50

221.00

0.50

<500 –  3400

242.50

244.50

2.00

<500 –  1100

269.00

273.50

4.50

<500 –  3450

276.00

277.50

1.50

<500 –  1400

420.50

421.50

1.00

<500 –  1500

429.00

451.50

22.50

<500 –  3500

454.00

454.50

0.50

<500 –  530

AR-17-175c1

315

-68

416.0

N/A

No Anomalous Radioactivity

AR-17-177c1

315

-68

390.0

92.7

192.00

195.50

3.50

<500 –  3350

AR-17-178c1

315

-68

381.0

N/A

149.00

154.00

5.00

<500 –  >61000

156.50

157.00

0.50

<500 –  860

196.00

197.00

1.00

<500 –  1400

316.50

317.50

1.00

<500 –  2000

AR-17-180c1

315

-68

384.0

91.1

247.50

248.00

0.50

<500 –  520

AR-17-181c1

315

-68

576.0

N/A

372.00

372.50

0.50

570 –  815

512.50

513.00

0.50

<500 –  520

520.50

526.00

5.50

<500 –  1400

AR-17-182c1

315

-68

349.0

N/A

130.50

131.50

1.00

<500 –  575

134.50

135.50

1.00

<500 –  1300

259.50

261.50

2.00

<500 –  1300

273.50

274.00

0.50

<500 –  600

AR-17-184c1

315

-68

360.0

N/A

134.00

145.00

11.00

<500 –  21000

AR-17-185c1

315

-80

424.0

N/A

258.00

258.50

0.50

<500 –  1200

Parameters:

  • Maximum internal dilution 2.00 m downhole
  • All depths and intervals are metres downhole, true thicknesses are yet to be determined
  • “Anomalous” means >500 cps (counts per second) total count gamma readings by gamma scintillometer type RS-120
  • “Off-scale” means >10,000 cps (counts per second) total count gamma readings by gamma scintillometer type RS-120
  • Where “Min cps” is <500 cps, this refers to local low radiometric zones within the overall radioactive interval
  • Directional drilling has often resulted in mineralization intersected at a more favourable and shallower dip

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 uranium industry professionals with a successful track record in the discovery of uranium deposits and in developing projects through discovery to production.

NexGen owns a portfolio of prospective uranium exploration assets in the Athabasca Basin, Saskatchewan, Canada, including a 100% interest in Rook I, location of the Arrow Deposit in February 2014, the Bow discovery in March 2015, the Harpoon discovery in August 2016 and the Arrow South discovery in July 2017. The Arrow deposit’s updated mineral resource estimate with an effective date of December 20, 2016 was released in March 2017, and comprised 179.5 M lbs U3O8 contained in 1.18 M tonnes grading 6.88% U3O8 in the Indicated Mineral Resource category and an additional 122.1 M lbs U3O8 contained in 4.25 M tonnes grading 1.30% U3O8 in the Inferred Mineral Resource category.

Technical Information

Natural gamma radiation in drill core reported in this news release was measured in counts per second (cps) using a Radiation Solutions Inc. RS-120 gamma-ray scintillometer. The reader is cautioned that total count gamma readings may not be directly or uniformly related to uranium grades of the rock sample measured; they should be used only as a preliminary indication of the presence of radioactive minerals.

Split core samples will be taken systematically, and intervals will be submitted to SRC Geoanalytical Laboratories (an SCC ISO/IEC 17025: 2005 Accredited Facility) of Saskatoon for analysis. All samples sent to SRC will be analyzed using ICP-MS for trace elements on partial and total digestions, ICP-OES for major and minor elements on a total digestion, and fusion solution of boron by ICP-OES. Mineralized samples are analyzed for U3O8 by ICP-OES and select samples for gold by fire assay. Assay results will be released when received and after stringent internal QA/QC protocols are passed.

All scientific and technical information in this news release has been prepared by or reviewed and approved by Mr. Garrett Ainsworth, P.Geo., Vice President – Exploration & Development for NexGen. Mr. Ainsworth is a qualified person for the purposes of National Instrument 43-101 Standards of Disclosure for Mineral Projects (“NI 43-101”), and has verified the sampling, analytical, and test data underlying the information or opinions contained herein by reviewing original data certificates and monitoring all of the data collection protocols.

For details of the Rook I Project including the quality assurance program and quality control measures applied and key assumptions, parameters and methods used to estimate the mineral resource please refer to the technical report entitled “Technical Report on the Preliminary Economic Assessment of the Arrow Deposit, Rook 1 Property, Province of Saskatchewan, Canada” dated effective September 1, 2017 (the “Rook 1 Technical Report“) prepared by Jason J. Cox, David M. Robson, Mark B. Mathisen, David A. Ross, Val Coetzee and Mark Wittrup, each of whom is a “qualified person” under NI 43-101. The Rook I Technical Report is available for review under the Company’s profile on SEDAR at www.sedar.com.

U.S. investors are advised that while the terms “indicated resources” and “inferred resources” are recognized and required by Canadian regulations, the U.S. Securities and Exchange Commission does not recognize these terms. U.S. investors are cautioned not to assume that any part or all of the material in these categories will ever be converted into mineral reserves.

Forward-Looking Information

The information contained herein contains “forward-looking statements” within the meaning of the United States Private Securities Litigation Reform Act of 1995 and “forward-looking information” within the meaning of applicable Canadian securities legislation. “Forward-looking information” includes, but is not limited to, statements with respect to the activities, events or developments that the Company expects or anticipates will or may occur in the future. Generally, but not always, forward-looking information and statements can be identified by the use of words such as “plans”, “expects”, “is expected”, “budget”, “scheduled”, “estimates”, “forecasts”, “intends”, “anticipates”, or “believes” or the negative connotation thereof or variations of such words and phrases or state that certain actions, events or results “may”, “could”, “would”, “might” or “will be taken”, “occur” or “be achieved” or the negative connotation thereof.

Forward-looking information and statements are based on the then current expectations, beliefs, assumptions, estimates and forecasts about NexGen’s business and the industry and markets in which it operates. Forward-looking information and statements are made based upon numerous assumptions, including among others, that the proposed transaction will be completed, the results of planned exploration activities are as anticipated, the price of uranium, the cost of planned exploration activities, that financing will be available if and when needed and on reasonable terms, that third party contractors, equipment, supplies and governmental and other approvals required to conduct NexGen’s planned exploration activities will be available on reasonable terms and in a timely manner and that general business and economic conditions will not change in a material adverse manner. Although the assumptions made by the Company in providing forward looking information or making forward looking statements are considered reasonable by management at the time, there can be no assurance that such assumptions will prove to be accurate

Forward-looking information and statements also involve known and unknown risks and uncertainties and other factors, which may cause actual results, performances and achievements of NexGen to differ materially from any projections of results, performances and achievements of NexGen expressed or implied by such forward-looking information or statements, including, among others, negative operating cash flow and dependence on third party financing, uncertainty of the availability of additional financing, the risk that pending assay results will not confirm previously announced preliminary results, imprecision of mineral resource estimates, the appeal of alternate sources of energy and sustained low uranium prices, aboriginal title and consultation issues, exploration risks, reliance upon key management and other personnel, deficiencies in the Company’s title to its properties, uninsurable risks, failure to manage conflicts of interest, failure to obtain or maintain required permits and licenses, changes in laws, regulations and policy, competition for resources and financing, and other factors discussed or referred to in the Company’s Annual Information Form dated March 31, 2017 under “Risk Factors“.

Although the Company has attempted to identify important factors that could cause actual results to differ materially from those contained in the forward-looking information or implied by forward-looking information, there may be other factors that cause results not to be as anticipated, estimated or intended.

There can be no assurance that forward-looking information and statements will prove to be accurate, as actual results and future events could differ materially from those anticipated, estimated or intended. Accordingly, readers should not place undue reliance on forward-looking statements or information. The Company 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.

SOURCE NexGen Energy Ltd.

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