EX-99.1 2 exhibit99-1.htm EXHIBIT 99.1 NexGen Energy Ltd.: Exhibit 99.1 - Filed by newsfilecorp.com


NexGen Announces New Off-Scale Mineralization Intersected at Patterson Corridor East
(PCE) and Continued Expansion of High-Grade Sub Domain

RK-25-254 and RK-25-256 (both intersecting 2.0 and 2.1 m of off-scale (>61,000 cps)) are located 51 m
and 119 m away from RK-25-232 (15 m at 15.9% U3O8).

Results highlight the repetition of upgrading high-grade shoots within growing mineralized footprint.

The following new holes intersected broad intercepts of cumulative mineralization (>500cps):

  • RK-25-246: 20.5m including 2.5m >10,000cps
  • RK-25-247: 18.0m including 2.5m >10,000cps
  • RK-25-251: 9.5m
  • RK-25-254: 19.5m including 5.0m >10,000cps including 2.0m >61,000cps

RK-25-256: 10.0m including 3.3m >10,000cps including 2.1m >61,000cps

Vancouver, BC, August 28, 2025 - NexGen Energy Ltd. ("NexGen" or the "Company") (TSX: NXE) (NYSE: NXE) (ASX: NXG) is pleased to announce continued exciting results from the summer drill program at the rapidly advancing PCE. Step-out holes RK-25-254 and RK-25-256 intersected 2.0 m and 2.1 m of cumulative >61,000 counts per second (cps), respectively, located 51 m up-dip and 119 m down-dip of PCE's best hole to date, RK-25-232 (Figures 1 and 2). These represent the best holes from the summer program to date and validate the growth in high-grade continuity. Overall, an upgraded high-grade shoot plunges a minimum 200 m from RK-25-254 to RK-24-222 as part of an emerging interpreted pattern of high-grade shoots spaced 70 m apart (Figures 2 and 3).

Depth of the intense high-grade in RK-25-254, at just 454.4 m depth, ranks among the shallowest intersections of massive uranium ever drilled by NexGen. Mineralization is open 300 m up-dip and completely contained in the competent basement rock, consistent with Arrow. Strong continuity of grade across the mineralized footprint is consistent with Arrow's basement-hosted uranium veins.

Drilling is also extending deeper where strongly developed alteration and structural disruption persist as key indicators of additional mineralization. Further significant expansion potential at PCE remains with mineralization open in most directions.

A total to 21,968.9 m of the planned 43,000m program has been drilled in 2025. Since discovery (see March 11, 2024, news release), 79 drillholes totalling 53,088.9 m have been completed (Figure 4). High-grade growth and overall mineralized extent are the focus with many more targets to be tested across this rapidly developing and growing high-grade system. 48 of the 79 drillholes are mineralized, including 34 intersecting high-grade (>10,000 cps) and 14 intersecting off-scale (>61,000 cps).

Leigh Curyer, Chief Executive Officer, commented: "This program is delivering exactly what we look for in a generational uranium discovery, basement-hosted significant mineralized system, continuity of high-grade mineralization, and growth potential. PCE is evolving in real time into a world-class system in its own right. NexGen's highly prospective land package continues to demonstrate exciting results and unmatched opportunity for Canada to take its place as the number one source of uranium in the world."

Jason Craven, Vice President, Exploration, commented: "NexGen's summer drill program is off to a fantastic start. PCE continues to deliver intense high-grade uranium at shallower depths than the world class Arrow deposit only 3.5km away. Early summer drilling results are building on emerging interpretations that include systematic repetition of high-grade shoots within the overall mineralized footprint, indicating potential for significant expansion at PCE."

Figure 1: RK-25-254 and RK-25-256 core photos of focused vein intercepts 170 m apart from one another, each having 2 m of massive replacement style uranium mineralization, with elevated radioactivity above and below what is shown; yellow outlines >1,000 cps, red outlines >10,000 cps, >61,000 cps outlined in purple.

Figure 2: Close-up of long section view of PCE high-grade subdomain around RK-25-232 (15.0 m at 15.9% U3O8)

Figure 3: Interpreted model of mineralization at PCE (as of this release) with newly interpreted high-grade shoots shown; view is a long section that looks perpendicular to the primary mineralized plane; total mineralized footprint in orange and the high-grade subdomains in red

Figure 4: Interpreted 3D model of PCE shown looking northwest (across strike) and northeast (along strike)

Table 1: 2025 Spectrometer results from summer drilling

Drillhole

Unconformity
Depth (m)

Handheld Spectrometer Results (RS-125)

Hole ID

Azimuth

Dip

Total
Depth
(m)

From
(m)

To
(m)

Width
(m)

CPS Range

RK-25-245

330

-70

744.0

111.5

695.0

695.5

0.5

<500

 

 

 

 

 

695.5

696.0

0.5

<500 - 950

 

 

 

 

 

696.0

696.5

0.5

< 500 - 680

 

 

 

 

 

706.5

707.0

0.5

<500 - 600

 

 

 

 

 

707.0

707.5

0.5

<500 - 900

 

 

 

 

 

722.5

723.0

0.5

<500

 

 

 

 

 

723.0

723.5

0.5

<500 - 560

 

 

 

 

 

724.0

724.5

0.5

<500 -560

 

 

 

 

 

724.5

725.0

0.5

<500

 

 

 

 

 

725.0

725.5

0.5

<500 - 1370

RK-25-246

270

-70

525.0

124.5

216.5

217.0

0.5

<500 - 1000

 

 

 

 

 

217.5

218.0

0.5

<500 - 720

 

 

 

 

 

218.0

218.5

0.5

<500 - 580

 

 

 

 

 

223.5

224.5

1.0

<500

 

 

 

 

 

229.0

229.5

0.5

<500 - 840

 

 

 

 

 

331.0

331.5

0.5

<500

 

 

 

 

 

332.0

332.5

0.5

<500

 

 

 

 

 

333.5

334.0

0.5

<500

 

 

 

 

 

337.5

338.5

1.0

<500

 

 

 

 

 

339.0

339.5

0.5

<500 - 800

 

 

 

 

 

339.5

340.0

0.5

<500 - 550

 

 

 

 

 

340.0

340.5

0.5

1000 - 7000

 

 

 

 

 

340.5

341.0

0.5

<500 - 800

 

 

 

 

 

341.0

341.5

0.5

<500 - 1500

 

 

 

 

 

341.5

342.0

0.5

<500 - 650

 

 

 

 

 

342.0

342.5

0.5

<500

 

 

 

 

 

343.0

344.0

1.0

<500

 

 

 

 

 

368.0

368.5

0.5

<500

 

 

 

 

 

369.0

370.5

1.5

<500

 

 

 

 

 

376.0

376.5

0.5

<500

 

 

 

 

 

376.5

377.0

0.5

<500 - 4300

 

 

 

 

 

377.0

377.5

0.5

<500 - 3500

 

 

 

 

 

377.5

378.5

1.0

<500

 

 

 

 

 

378.5

379.0

0.5

<500 - 2200

 

 

 

 

 

379.0

379.5

0.5

<500 - 1900

 

 

 

 

 

379.5

380.0

0.5

<500 - 12000

 

 

 

 

 

380.0

380.5

0.5

<500 - 1900

 

 

 

 

 

380.5

381.0

0.5

<500 - 7300

 

 

 

 

 

381.0

381.5

0.5

1000 - 16000

 

 

 

 

 

381.5

382.0

0.5

9700 - 18000

 

 

 

 

 

382.0

382.5

0.5

3000 - 6000

 

 

 

 

 

382.5

383.0

0.5

950 - 7200

 

 

 

 

 

383.0

383.5

0.5

1000 - 6000

 

 

 

 

 

383.5

384.0

0.5

2900 - 6000

 

 

 

 

 

384.0

384.5

0.5

1000 - 24000

 

 

 

 

 

384.5

385.0

0.5

1200 - 23000

 

 

 

 

 

385.0

385.5

0.5

840 - 3800

 

 

 

 

 

385.5

386.0

0.5

<500 - 2300

 

 

 

 

 

386.0

386.5

0.5

<500 - 770

 

 

 

 

 

386.5

387.0

0.5

<500- 860

 

 

 

 

 

387.0

387.5

0.5

<500 - 720

 

 

 

 

 

387.5

388.0

0.5

<500 - 680

 

 

 

 

 

388.0

388.5

0.5

<500 - 730

 

 

 

 

 

388.5

389.0

0.5

<500 - 830

 

 

 

 

 

389.0

389.5

0.5

<500 - 830

 

 

 

 

 

389.5

390.0

0.5

<500 - 1100

 

 

 

 

 

390.0

390.5

0.5

<500 - 1200

 

 

 

 

 

390.5

391.0

0.5

<500

 

 

 

 

 

391.5

393.0

1.5

<500

 

 

 

 

 

393.0

393.5

0.5

<500 - 530

 

 

 

 

 

393.5

394.0

0.5

<500 - 2300

 

 

 

 

 

394.0

394.5

0.5

<500 - 1000

 

 

 

 

 

394.5

395.0

0.5

<500 - 600

 

 

 

 

 

395.0

396.0

1.0

<500

 

 

 

 

 

396.5

397.0

0.5

<500 - 570

 

 

 

 

 

398.0

398.5

0.5

<500 - 1200

 

 

 

 

 

398.5

399.0

0.5

<500

 

 

 

 

 

400.0

400.5

0.5

<500 - 1400

 

 

 

 

 

400.5

401.0

0.5

<500 - 1700

 

 

 

 

 

401.5

402.0

0.5

<500

 

 

 

 

 

402.0

402.5

0.5

<500 - 880

 

 

 

 

 

402.5

403.0

0.5

<500 - 1700

 

 

 

 

 

403.0

403.5

0.5

<500 - 1800

 

 

 

 

 

403.5

404.0

0.5

<500 - 1200

 

 

 

 

 

404.0

404.5

0.5

<500

 

 

 

 

 

404.5

405.0

0.5

<500 - 890

 

 

 

 

 

405.0

405.5

0.5

<500

 

 

 

 

 

424.0

426.0

2.0

<500

 

 

 

 

 

445.5

446.5

1.0

<500

 

 

 

 

 

450.5

451.0

0.5

<500

 

 

 

 

 

460.5

461.0

0.5

<500

 

 

 

 

 

461.0

461.5

0.5

<500 - 1300

 

 

 

 

 

461.5

462.0

0.5

<500 - 4000

 

 

 

 

 

479.0

479.5

0.5

<500 - 1380

 

 

 

 

 

479.5

480.0

0.5

<500 - 1300

 

 

 

 

 

488.5

489.0

0.5

<500 - 580

 

 

 

 

 

489.0

489.5

0.5

<500

RK-25-247

330

-70

738.0

114.4

269.5

270.0

0.5

<500

 

 

 

 

 

572.0

572.5

0.5

<500

 

 

 

 

 

572.5

573.0

0.5

<500 - 550

 

 

 

 

 

573.0

573.5

0.5

<500 - 600

 

 

 

 

 

573.5

574.0

0.5

<500 - 1500

 

 

 

 

 

574.0

574.5

0.5

<500

 

 

 

 

 

574.5

575.0

0.5

<500 -550

 

 

 

 

 

575.0

575.5

0.5

<500 - 900

 

 

 

 

 

575.5

576.0

0.5

500 - 1500

 

 

 

 

 

576.0

576.5

0.5

<500 - 2300

 

 

 

 

 

576.5

577.0

0.5

<500 - 900

 

 

 

 

 

577.0

577.5

0.5

550 - 4000

 

 

 

 

 

577.5

578.0

0.5

<500 - 30000

 

 

 

 

 

578.0

578.5

0.5

<500 - 2000

 

 

 

 

 

578.5

579.0

0.5

<500

 

 

 

 

 

579.0

579.5

0.5

<500 - 3000

 

 

 

 

 

579.5

580.0

0.5

<500 - 4500

 

 

 

 

 

580.0

580.5

0.5

<500 - 3000

 

 

 

 

 

580.5

581.0

0.5

<500 - 4500

 

 

 

 

 

581.0

581.5

0.5

650 - 5000

 

 

 

 

 

581.5

582.0

0.5

<500 - 31000

 

 

 

 

 

582.0

582.5

0.5

<500

 

 

 

 

 

582.5

583.0

0.5

<500 - 4500

 

 

 

 

 

583.5

584.0

0.5

<500

 

 

 

 

 

584.0

584.5

0.5

<500 - 700

 

 

 

 

 

584.5

568.5

-16.0

<500

 

 

 

 

 

586.5

587.0

0.5

<500 - 800

 

 

 

 

 

587.0

587.5

0.5

<500 - 550

 

 

 

 

 

587.5

588.0

0.5

<500 - 550

 

 

 

 

 

588.0

589.0

1.0

<500

 

 

 

 

 

589.0

589.5

0.5

<500 - 600

 

 

 

 

 

589.5

590.0

0.5

500 - 800

 

 

 

 

 

590.0

590.5

0.5

<500

 

 

 

 

 

591.0

591.5

0.5

<500 - 710

 

 

 

 

 

591.5

592.0

0.5

<500 - 820

 

 

 

 

 

592.0

592.5

0.5

<500 - 2700

 

 

 

 

 

592.5

593.0

0.5

<500 - 1900

 

 

 

 

 

593.0

593.5

0.5

<500 - 970

 

 

 

 

 

593.5

594.0

0.5

2200 - 11000

 

 

 

 

 

594.0

594.5

0.5

1500 - 20000

 

 

 

 

 

594.5

595.0

0.5

560 - 16000

 

 

 

 

 

595.0

595.5

0.5

<500 - 5800

 

 

 

 

 

595.5

596.5

1.0

<500

 

 

 

 

 

596.5

597.0

0.5

<500 - 3300

 

 

 

 

 

597.0

597.5

0.5

<500 - 660

 

 

 

 

 

597.5

598.5

1.0

<500

 

 

 

 

 

599.5

600.0

0.5

<500

 

 

 

 

 

601.0

601.5

0.5

<500 - 670

 

 

 

 

 

601.5

602.0

0.5

<500 - 1100

 

 

 

 

 

602.0

602.5

0.5

<500 - 1100

 

 

 

 

 

602.5

603.0

0.5

<500

 

 

 

 

 

603.0

603.5

0.5

<500 - 2000

 

 

 

 

 

603.5

604.0

0.5

<500

 

 

 

 

 

604.0

604.5

0.5

<500 - 1100

 

 

 

 

 

604.5

605.0

0.5

<500 - 2000

 

 

 

 

 

605.0

605.5

0.5

<500 - 900

 

 

 

 

 

605.5

606.0

0.5

<500

 

 

 

 

 

606.0

606.5

0.5

<500 - 900

 

 

 

 

 

606.5

607.0

0.5

<500 - 2000

 

 

 

 

 

607.0

607.5

0.5

600 - 3700

 

 

 

 

 

607.5

608.0

0.5

<500 - 1700

 

 

 

 

 

608.0

608.5

0.5

<500 - 600

 

 

 

 

 

608.5

609.0

0.5

<500 - 700

 

 

 

 

 

610.0

610.5

0.5

<500

 

 

 

 

 

611.0

612.0

1.0

<500

 

 

 

 

 

613.5

614.5

1.0

<500

RK-25-248

283

-69

501.0

123.3

202.0

202.5

0.5

<500

 

 

 

 

 

339.0

339.5

0.5

<500

 

 

 

 

 

344.0

344.5

0.5

<500-600

 

 

 

 

 

346.0

346.5

0.5

<500 - 730

 

 

 

 

 

346.5

347.0

0.5

<500 - 520

 

 

 

 

 

350.5

351.0

0.5

<500

 

 

 

 

 

352.0

352.5

0.5

<500

 

 

 

 

 

352.5

353.0

0.5

<500 -520

 

 

 

 

 

353.0

353.5

0.5

<500

 

 

 

 

 

357.0

357.5

0.5

<500 - 750

 

 

 

 

 

358.0

358.5

0.5

<500

 

 

 

 

 

366.0

366.5

0.5

<500

 

 

 

 

 

382.5

383.5

1.0

<500

 

 

 

 

 

383.5

384.0

0.5

<500 - 2000

 

 

 

 

 

384.5

385.0

0.5

<500 - 900

 

 

 

 

 

388.0

388.5

0.5

<500

 

 

 

 

 

390.0

391.0

1.0

<500

 

 

 

 

 

391.5

392.0

0.5

<500

 

 

 

 

 

392.0

392.5

0.5

<500 - 610

 

 

 

 

 

393.0

393.5

0.5

<500

 

 

 

 

 

395.5

396.0

0.5

<500

 

 

 

 

 

396.0

396.5

0.5

<500 - 800

 

 

 

 

 

396.5

397.0

0.5

<500 - 800

 

 

 

 

 

398.0

398.5

0.5

<500

 

 

 

 

 

400.5

401.0

0.5

<500

 

 

 

 

 

401.0

401.5

0.5

<500 -650

 

 

 

 

 

402.0

402.5

0.5

<500

 

 

 

 

 

402.5

403.0

0.5

<500 - 900

 

 

 

 

 

403.5

405.0

1.5

<500

 

 

 

 

 

409.5

410.5

1.0

<500

 

 

 

 

 

411.0

411.5

0.5

<500

 

 

 

 

 

433.5

435.5

2.0

<500

 

 

 

 

 

436.0

437.0

1.0

<500

 

 

 

 

 

440.5

441.0

0.5

<500

 

 

 

 

 

442.0

443.0

1.0

<500

 

 

 

 

 

443.0

443.5

0.5

<500 - 800

RK-25-249

340

-70

681.0

106.1

626.5

627.0

0.5

<500 - 700

 

 

 

 

 

628.0

628.5

0.5

<500 - 1000

 

 

 

 

 

628.5

629.0

0.5

<500 - 900

 

 

 

 

 

631.0

631.5

0.5

<500 - 820

 

 

 

 

 

637.5

638.0

0.5

<500

 

 

 

 

 

640.5

641.0

0.5

<500 - 2300

 

 

 

 

 

641.0

641.5

0.5

1200 - 16000

 

 

 

 

 

641.5

642.0

0.5

600 - 3200

 

 

 

 

 

642.0

642.5

0.5

<500 - 970

 

 

 

 

 

642.5

643.0

0.5

<500

 

 

 

 

 

645.5

646.5

1.0

<500

 

 

 

 

 

648.5

649.0

0.5

<500

 

 

 

 

 

650.0

650.5

0.5

<500

 

 

 

 

 

650.5

651.0

0.5

<190 - 1000

 

 

 

 

 

651.0

651.5

0.5

<500

 

 

 

 

 

651.5

652.0

0.5

<500 - 2500

 

 

 

 

 

652.0

652.5

0.5

<500 - 540

 

 

 

 

 

653.0

653.5

0.5

<500 - 2200

 

 

 

 

 

653.5

654.0

0.5

<500 - 920

 

 

 

 

 

654.0

654.5

0.5

<500 - 1000

 

 

 

 

 

654.5

655.0

0.5

<500 - 1200

 

 

 

 

 

655.0

655.5

0.5

<500

 

 

 

 

 

655.5

656.0

0.5

<500 - 730

 

 

 

 

 

656.0

656.5

0.5

<500 - 4400

 

 

 

 

 

656.5

657.0

0.5

<500 - 1300

 

 

 

 

 

657.0

657.5

0.5

<500 - 860

 

 

 

 

 

657.5

658.0

0.5

<500

 

 

 

 

 

658.0

658.5

0.5

<500-820

 

 

 

 

 

658.5

659.0

0.5

<500

 

 

 

 

 

661.5

662.0

0.5

<500 - 2500

 

 

 

 

 

662.0

662.5

0.5

<500 - 3700

 

 

 

 

 

668.5

669.0

0.5

<500 - 700

 

 

 

 

 

669.0

669.5

0.5

<500 - 410

 

 

 

 

 

669.5

670.0

0.5

<500 - 4700

 

 

 

 

 

670.0

670.5

0.5

<500

 

 

 

 

 

670.5

671.0

0.5

<500 - 1000

 

 

 

 

 

672.5

673.0

0.5

<500 - 770

 

 

 

 

 

673.5

674.0

0.5

<500

RK-25-250

308

-70

726.0

114.8

577.0

577.5

0.5

<500

 

 

 

 

 

586.5

587.0

0.5

<500

 

 

 

 

 

587.0

587.5

0.5

<500 - 950

 

 

 

 

 

587.5

588.0

0.5

600 -1200

 

 

 

 

 

588.0

588.5

0.5

<500 - 3850

 

 

 

 

 

588.5

589.0

0.5

<500 - 650

 

 

 

 

 

592.0

592.5

0.5

<500 - 1950

 

 

 

 

 

592.5

593.0

0.5

2280 - 5000

 

 

 

 

 

593.0

593.5

0.5

<500 - 730

 

 

 

 

 

594.0

594.5

0.5

<500

 

 

 

 

 

594.5

595.0

0.5

<500 - 770

 

 

 

 

 

595.0

595.5

0.5

<500 - 640

 

 

 

 

 

595.5

596.0

0.5

<500

 

 

 

 

 

596.0

596.5

0.5

<500 - 580

 

 

 

 

 

596.5

597.0

0.5

700 - 1350

 

 

 

 

 

597.0

597.5

0.5

<500 - 850

 

 

 

 

 

597.5

598.0

0.5

<500 - 740

 

 

 

 

 

599.0

599.5

0.5

<500

 

 

 

 

 

599.5

600.0

0.5

<500 - 770

 

 

 

 

 

600.0

600.5

0.5

<500 - 1160

 

 

 

 

 

600.5

601.0

0.5

<500 - 3350

 

 

 

 

 

601.5

602.0

0.5

800 - 2750

 

 

 

 

 

602.0

602.5

0.5

<500 - 1850

 

 

 

 

 

602.5

603.0

0.5

<500 - 510

 

 

 

 

 

603.0

603.5

0.5

<500 - 1150

 

 

 

 

 

603.5

604.0

0.5

<500 - 1000

 

 

 

 

 

604.0

604.5

0.5

1000 - 2100

 

 

 

 

 

604.5

605.0

0.5

1100 - 4500

 

 

 

 

 

605.0

605.5

0.5

1100 - 4300

 

 

 

 

 

605.5

606.0

0.5

<500

 

 

 

 

 

606.5

608.0

1.5

<500

 

 

 

 

 

608.0

608.5

0.5

<500 - 1800

 

 

 

 

 

608.5

609.5

1.0

<500

 

 

 

 

 

609.5

610.0

0.5

<500 - 1800

 

 

 

 

 

610.0

611.0

1.0

<500

 

 

 

 

 

611.0

611.5

0.5

<500 - 800

 

 

 

 

 

612.0

612.5

0.5

<500

 

 

 

 

 

612.5

613.0

0.5

<500 - 750

 

 

 

 

 

613.0

613.5

0.5

<500 - 1200

 

 

 

 

 

613.5

614.0

0.5

<500 - 1500

 

 

 

 

 

614.0

614.5

0.5

<500 - 8700

 

 

 

 

 

614.5

615.0

0.5

<500 - 2100

 

 

 

 

 

615.0

615.5

0.5

4000 - 14000

 

 

 

 

 

615.5

616.0

0.5

<500 - 5100

 

 

 

 

 

616.0

616.5

0.5

1500 - 3000

 

 

 

 

 

618.0

618.5

0.5

<500 - 1100

 

 

 

 

 

618.5

619.0

0.5

<500 - 1900

 

 

 

 

 

619.0

619.5

0.5

<500 - 800

 

 

 

 

 

619.5

620.0

0.5

1200 - 40000

 

 

 

 

 

620.0

620.5

0.5

<500

 

 

 

 

 

620.5

621.0

0.5

<500 - 1100

 

 

 

 

 

621.0

621.5

0.5

600 - 1700

 

 

 

 

 

621.5

622.0

0.5

600 - 2600

 

 

 

 

 

622.0

622.5

0.5

700 - 2100

 

 

 

 

 

622.5

623.0

0.5

800 - 2000

 

 

 

 

 

623.0

623.5

0.5

600 - 2000

 

 

 

 

 

623.5

624.0

0.5

800 - 8800

 

 

 

 

 

624.0

624.5

0.5

<500 - 700

 

 

 

 

 

630.0

630.5

0.5

<500

 

 

 

 

 

638.0

638.5

0.5

<500 - 1200

 

 

 

 

 

643.5

647.0

3.5

<500

 

 

 

 

 

647.5

648.0

0.5

<500

 

 

 

 

 

654.5

660.5

6.0

<500

 

 

 

 

 

660.5

661.0

0.5

<500 - 6000

 

 

 

 

 

663.0

663.5

0.5

<500 - 8500

 

 

 

 

 

665.0

665.5

0.5

<500 - 750

 

 

 

 

 

666.0

666.5

0.5

700 - 1800

 

 

 

 

 

666.5

667.0

0.5

<500 - 6100

 

 

 

 

 

667.5

668.0

0.5

<500 - 700

 

 

 

 

 

668.0

668.5

0.5

<500 - 700

 

 

 

 

 

668.5

669.0

0.5

<500 - 2400

 

 

 

 

 

669.0

669.5

0.5

<500 - 770

 

 

 

 

 

670.0

670.5

0.5

<500

 

 

 

 

 

670.5

671.0

0.5

<500 - 575

 

 

 

 

 

671.0

671.5

0.5

<500 - 1400

RK-25-251

302

-69

576.3

119.6

282.0

282.5

0.5

<500

 

 

 

 

 

376.5

378.0

1.5

<500

 

 

 

 

 

379.5

380.0

0.5

<500

 

 

 

 

 

380.5

381.0

0.5

<500

 

 

 

 

 

381.5

382.0

0.5

<500 - 530

 

 

 

 

 

382.0

382.5

0.5

<500 - 530

 

 

 

 

 

384.0

385.5

1.5

<500

 

 

 

 

 

385.5

386.0

0.5

<500 - 510

 

 

 

 

 

386.0

387.5

1.5

<500

 

 

 

 

 

388.5

389.0

0.5

<500

 

 

 

 

 

392.5

393.0

0.5

<500 - 2000

 

 

 

 

 

393.0

393.5

0.5

<500 - 7600

 

 

 

 

 

393.5

394.0

0.5

<500 - 740

 

 

 

 

 

394.0

394.5

0.5

<500 - 5100

 

 

 

 

 

394.5

395.0

0.5

<500 - 1440

 

 

 

 

 

395.5

396.0

0.5

<500

 

 

 

 

 

404.0

404.5

0.5

<500

 

 

 

 

 

404.5

405.0

0.5

<500 - 920

 

 

 

 

 

405.0

405.5

0.5

<500 - 2100

 

 

 

 

 

405.5

406.0

0.5

500 - 2900

 

 

 

 

 

406.0

406.5

0.5

4000 - 8000

 

 

 

 

 

406.5

407.0

0.5

5000 - 12000

 

 

 

 

 

407.0

407.5

0.5

3000 - 15000

 

 

 

 

 

407.5

408.0

0.5

15000 - 33000

 

 

 

 

 

408.0

408.5

0.5

4000 - 31000

 

 

 

 

 

408.5

409.0

0.5

<500 - 620

 

 

 

 

 

409.0

409.5

0.5

530 - 2000

 

 

 

 

 

409.5

410.0

0.5

<500 - 1400

 

 

 

 

 

410.0

410.5

0.5

<500 - 840

 

 

 

 

 

410.5

411.0

0.5

<500 - 1200

 

 

 

 

 

411.0

411.5

0.5

<500

 

 

 

 

 

420.0

421.0

1.0

<500

 

 

 

 

 

432.5

433.0

0.5

<500

 

 

 

 

 

436.0

436.5

0.5

<500

 

 

 

 

 

438.0

438.5

0.5

<500

 

 

 

 

 

439.5

440.0

0.5

<500

 

 

 

 

 

446.5

447.5

1.0

<500

 

 

 

 

 

448.0

448.5

0.5

<500

 

 

 

 

 

452.0

452.5

0.5

<500

 

 

 

 

 

460.0

460.5

0.5

<500

 

 

 

 

 

461.0

461.5

0.5

<500 - 3000

 

 

 

 

 

468.0

468.5

0.5

<500

 

 

 

 

 

469.5

470.0

0.5

<500 - 1000

 

 

 

 

 

470.0

470.5

0.5

<500 - 1500

 

 

 

 

 

470.5

471.0

0.5

<500

 

 

 

 

 

474.5

475.0

0.5

<500

RK-25-252

275

-68

663.0

120.8

515.5

516.0

0.5

<500

 

 

 

 

 

528.5

529.0

0.5

<500

 

 

 

 

 

531.0

534.0

3.0

<500

 

 

 

 

 

535.0

535.5

0.5

<500

 

 

 

 

 

546.5

547.0

0.5

<500 - 820

 

 

 

 

 

547.0

547.5

0.5

<500 - 670

 

 

 

 

 

547.5

548.0

0.5

<500 - 640

 

 

 

 

 

548.5

549.5

1.0

<500

 

 

 

 

 

549.5

550.0

0.5

<500 - 510

 

 

 

 

 

550.0

550.5

0.5

<500 - 1800

 

 

 

 

 

550.5

551.0

0.5

<500 - 880

 

 

 

 

 

551.0

551.5

0.5

<500 - 1300

 

 

 

 

 

551.5

552.0

0.5

<500 - 510

 

 

 

 

 

552.0

552.5

0.5

500 - 1190

 

 

 

 

 

552.5

553.0

0.5

850 - 1150

 

 

 

 

 

553.0

553.5

0.5

660 - 1400

 

 

 

 

 

553.5

554.0

0.5

2400 - 20000

 

 

 

 

 

554.0

554.5

0.5

<500 - 1900

 

 

 

 

 

554.5

555.0

0.5

<500 - 600

 

 

 

 

 

555.0

555.5

0.5

550 - 1400

 

 

 

 

 

555.5

556.0

0.5

<500 - 550

 

 

 

 

 

556.0

556.5

0.5

<500

 

 

 

 

 

556.5

557.0

0.5

800 - 1800

 

 

 

 

 

557.0

557.5

0.5

<500

 

 

 

 

 

557.5

558.0

0.5

<500 - 1080

 

 

 

 

 

558.0

559.0

1.0

<500

 

 

 

 

 

559.5

560.0

0.5

<500 -510

 

 

 

 

 

560.0

560.5

0.5

<500 - 550

 

 

 

 

 

560.5

561.0

0.5

<500

 

 

 

 

 

561.0

561.5

0.5

<500 - 4200

 

 

 

 

 

563.0

563.5

0.5

<500 - 2200

 

 

 

 

 

563.5

564.0

0.5

690 - 1750

 

 

 

 

 

564.0

564.5

0.5

<500

 

 

 

 

 

564.5

565.0

0.5

<500 - 1200

 

 

 

 

 

567.0

567.5

0.5

<500

 

 

 

 

 

568.5

569.5

1.0

<500

 

 

 

 

 

570.0

570.5

0.5

<500

 

 

 

 

 

572.5

573.0

0.5

<500

 

 

 

 

 

589.0

589.5

0.5

<500 - 640

 

 

 

 

 

590.5

591.0

0.5

<500

 

 

 

 

 

593.5

594.0

0.5

<500 - 540

 

 

 

 

 

594.0

594.5

0.5

<500

 

 

 

 

 

594.5

595.0

0.5

<500 - 1675

 

 

 

 

 

595.0

595.5

0.5

<500 - 600

 

 

 

 

 

595.5

596.0

0.5

<500

 

 

 

 

 

598.5

599.0

0.5

<500

 

 

 

 

 

603.0

603.5

0.5

<500 -1200

 

 

 

 

 

603.5

604.0

0.5

<500 - 1500

 

 

 

 

 

604.5

605.0

0.5

<500 - 630

 

 

 

 

 

605.0

605.5

0.5

<500

RK-25-253

340

-70

657.0

116.8

No Significant Intersections.

RK-25-254

275

-65

582.0

128.0

404.5

405.0

0.5

<500

 

 

 

 

 

410.5

411.0

0.5

<500

 

 

 

 

 

419.5

420.0

0.5

<500

 

 

 

 

 

428.0

428.5

0.5

<500

 

 

 

 

 

434.5

435.0

0.5

<500

 

 

 

 

 

438.0

438.5

0.5

<500

 

 

 

 

 

439.0

439.5

0.5

<500

 

 

 

 

 

445.5

446.0

0.5

<500

 

 

 

 

 

448.5

449.5

1.0

<500

 

 

 

 

 

449.5

450.5

1.0

<500 - 720

 

 

 

 

 

450.5

451.0

0.5

580 - 1200

 

 

 

 

 

451.0

453.0

2.0

<500 - 700

 

 

 

 

 

453.0

453.5

0.5

<500 - 1400

 

 

 

 

 

453.5

454.0

0.5

<500 - 2200

 

 

 

 

 

454.0

454.4

0.4

700 - 18000

 

 

 

 

 

454.4

454.9

0.5

>61000

 

 

 

 

 

454.9

455.0

0.1

40000 - 52000

 

 

 

 

 

455.0

455.5

0.5

12000 - 43000

 

 

 

 

 

455.5

455.7

0.2

32000 - 50000

 

 

 

 

 

455.7

455.9

0.2

>61000

 

 

 

 

 

455.9

456.0

0.1

13000 - 43000

 

 

 

 

 

456.0

457.2

1.2

>61000

 

 

 

 

 

457.2

457.4

0.2

17000 - 40000

 

 

 

 

 

457.4

457.5

0.1

>61000

 

 

 

 

 

457.5

458.0

0.5

3500 - 32000

 

 

 

 

 

458.0

459.5

1.5

900 - 1700

 

 

 

 

 

462.5

463.0

0.5

<500

 

 

 

 

 

476.5

477.0

0.5

<500

 

 

 

 

 

480.0

481.0

1.0

<500 - 700

 

 

 

 

 

483.0

483.5

0.5

<500 - 540

 

 

 

 

 

483.5

484.0

0.5

<500 - 2700

 

 

 

 

 

484.0

484.5

0.5

<500 - 550

 

 

 

 

 

484.5

485.0

0.5

550 - 770

 

 

 

 

 

485.5

486.0

0.5

<500 - 1100

 

 

 

 

 

486.0

487.0

1.0

<500 - 500

 

 

 

 

 

487.5

488.0

0.5

<500

 

 

 

 

 

488.0

488.5

0.5

<500 - 1200

 

 

 

 

 

489.0

491.0

2.0

<500 - 1200

 

 

 

 

 

505.0

505.5

0.5

<500 - 2300

 

 

 

 

 

505.5

506.0

0.5

700 - 1300

 

 

 

 

 

506.0

507.0

1.0

<500 - 650

 

 

 

 

 

509.0

509.5

0.5

<500

 

 

 

 

 

522.0

522.5

0.5

<500 - 1300

 

 

 

 

 

536.5

537.0

0.5

<500 - 14000

 

 

 

 

 

537.0

538.5

1.5

<500 - 550

 

 

 

 

 

541.5

542.0

0.5

<500 - 20000

RK-25-254c1

275

-65

564.0

N/A

395.5

396.0

0.5

<500 - 530

 

 

 

 

 

396.5

397.0

0.5

<500 - 18000

 

 

 

 

 

407.0

407.5

0.5

<500 - 510

 

 

 

 

 

409.5

410.0

0.5

<500

 

 

 

 

 

415.5

416.0

0.5

<500

 

 

 

 

 

421.5

422.0

0.5

<500 - 710

 

 

 

 

 

422.0

422.5

0.5

<500 - 690

 

 

 

 

 

423.0

423.5

0.5

<500

 

 

 

 

 

434.0

434.5

0.5

<500

 

 

 

 

 

434.5

435.0

0.5

<500

 

 

 

 

 

435.0

435.5

0.5

<500 - 880

 

 

 

 

 

436.0

436.5

0.5

<500 - 990

 

 

 

 

 

436.5

437.0

0.5

<500 - 2750

 

 

 

 

 

437.0

437.5

0.5

<500 - 1220

 

 

 

 

 

437.5

438.0

0.5

<500 - 1020

 

 

 

 

 

438.0

438.5

0.5

<500

 

 

 

 

 

438.5

439.0

0.5

<500 - 4220

 

 

 

 

 

439.0

439.5

0.5

<500 - 770

 

 

 

 

 

439.5

440.0

0.5

<500 - 1990

 

 

 

 

 

440.0

440.5

0.5

<500 - 1760

 

 

 

 

 

440.5

441.0

0.5

<500 - 1990

 

 

 

 

 

441.0

441.5

0.5

<500 - 4600

 

 

 

 

 

441.5

442.0

0.5

<500 - 2400

 

 

 

 

 

442.0

442.5

0.5

<500 - 1100

 

 

 

 

 

444.5

445.0

0.5

<500

 

 

 

 

 

445.0

445.5

0.5

<500

 

 

 

 

 

447.0

447.5

0.5

<500

 

 

 

 

 

447.5

448.0

0.5

<500

 

 

 

 

 

448.0

448.5

0.5

<500

 

 

 

 

 

449.5

450.0

0.5

<500 - 6900

 

 

 

 

 

450.0

450.5

0.5

<500

 

 

 

 

 

450.5

451.0

0.5

<500

 

 

 

 

 

451.0

451.5

0.5

<500 - 990

 

 

 

 

 

453.5

454.0

0.5

<500 - 880

 

 

 

 

 

454.0

454.5

0.5

<500 - 770

 

 

 

 

 

456.0

456.5

0.5

<500

 

 

 

 

 

456.5

457.0

0.5

<500

 

 

 

 

 

457.0

457.5

0.5

<500

 

 

 

 

 

460.0

460.5

0.5

<500

 

 

 

 

 

461.0

461.5

0.5

<500

 

 

 

 

 

461.5

462.0

0.5

<500

 

 

 

 

 

462.0

462.5

0.5

<500 - 1070

 

 

 

 

 

462.5

463.0

0.5

<500

 

 

 

 

 

463.0

463.5

0.5

<500 - 610

 

 

 

 

 

468.5

469.0

0.5

<500 - 520

 

 

 

 

 

469.0

469.5

0.5

<500

 

 

 

 

 

472.0

472.5

0.5

<500

 

 

 

 

 

472.5

473.0

0.5

<500 - 520

 

 

 

 

 

473.0

473.5

0.5

<500

 

 

 

 

 

481.5

482.0

0.5

<500 - 7300

 

 

 

 

 

482.0

482.5

0.5

<500 - 3200

 

 

 

 

 

482.5

483.0

0.5

<500 - 1590

 

 

 

 

 

483.0

483.5

0.5

<500 - 4600

 

 

 

 

 

483.5

484.0

0.5

<500 - 980

 

 

 

 

 

484.0

484.5

0.5

<500

 

 

 

 

 

484.5

485.0

0.5

<500 - 980

 

 

 

 

 

485.0

485.5

0.5

<500 - 540

 

 

 

 

 

485.5

486.0

0.5

<500

 

 

 

 

 

486.0

486.5

0.5

<500 - 1700

 

 

 

 

 

486.5

487.0

0.5

<500 - 6070

 

 

 

 

 

487.0

487.5

0.5

<500 - 1900

 

 

 

 

 

487.5

488.0

0.5

<500 - 1360

 

 

 

 

 

488.0

488.5

0.5

<500 - 1480

 

 

 

 

 

488.5

489.0

0.5

<500 - 10300

 

 

 

 

 

489.0

489.5

0.5

<500 - 2900

 

 

 

 

 

489.5

490.0

0.5

<500 - 6700

 

 

 

 

 

490.0

490.5

0.5

<500 - 3400

 

 

 

 

 

490.5

491.0

0.5

<500 - 23200

 

 

 

 

 

491.0

491.5

0.5

<500 - 5300

 

 

 

 

 

491.5

492.0

0.5

<500 - 570

 

 

 

 

 

492.0

492.5

0.5

<500

 

 

 

 

 

492.5

493.0

0.5

<500 - 900

 

 

 

 

 

493.0

493.5

0.5

<500 - 780

 

 

 

 

 

495.5

496.0

0.5

<500

 

 

 

 

 

496.0

496.5

0.5

<500

 

 

 

 

 

497.0

497.5

0.5

<500 - 540

 

 

 

 

 

498.5

499.0

0.5

<500 - 830

 

 

 

 

 

499.0

499.5

0.5

<500 - 720

 

 

 

 

 

499.5

500.0

0.5

<500 - 680

 

 

 

 

 

500.0

500.5

0.5

<500 - 2300

 

 

 

 

 

500.5

501.0

0.5

<500 - 910

 

 

 

 

 

503.0

503.5

0.5

<500 - 610

 

 

 

 

 

503.5

504.0

0.5

<500

 

 

 

 

 

504.0

504.5

0.5

<500

 

 

 

 

 

504.5

505.0

0.5

<500 - 760

 

 

 

 

 

505.0

505.5

0.5

<500

RK-25-256

292

-65.5

696.0

116.9

510.5

511.0

0.5

<500 - 540

 

 

 

 

 

525.5

526.0

0.5

<500 - 510

 

 

 

 

 

587.5

588.0

0.5

540 - 2010

 

 

 

 

 

588.0

588.5

0.5

<500

 

 

 

 

 

588.5

589.0

0.5

<500

 

 

 

 

 

589.0

589.5

0.5

<500 - 3700

 

 

 

 

 

589.5

590.0

0.5

<500

 

 

 

 

 

590.0

590.5

0.5

<500 - 810

 

 

 

 

 

590.5

591.0

0.5

1100 - 8700

 

 

 

 

 

591.0

591.5

0.5

800 - 2300

 

 

 

 

 

591.5

591.8

0.3

1900 - 23000

 

 

 

 

 

591.8

592.7

0.9

>61000

 

 

 

 

 

592.7

592.9

0.2

3900 - 8300

 

 

 

 

 

592.9

593.5

0.6

>61000

 

 

 

 

 

593.5

593.7

0.2

800 - 33000

 

 

 

 

 

593.7

594.3

0.6

>61000

 

 

 

 

 

594.3

594.5

0.2

<500 - 16000

 

 

 

 

 

594.5

595.0

0.5

<500

 

 

 

 

 

596.0

596.5

0.5

1100 - 37000

 

 

 

 

 

596.5

597.0

0.5

<500 - 620

 

 

 

 

 

597.5

598.0

0.5

<500

 

 

 

 

 

599.5

600.0

0.5

<500

 

 

 

 

 

600.0

600.5

0.5

<500

 

 

 

 

 

602.5

603.0

0.5

<500 - 790

 

 

 

 

 

603.5

604.0

0.5

<500

 

 

 

 

 

607.0

607.5

0.5

<500

 

 

 

 

 

608.0

608.5

0.5

<500

 

 

 

 

 

608.5

609.0

0.5

<500

 

 

 

 

 

609.0

609.5

0.5

<500

 

 

 

 

 

610.0

610.5

0.5

<500

 

 

 

 

 

611.0

611.5

0.5

900 - 4400

 

 

 

 

 

611.5

612.0

0.5

<500 - 800

 

 

 

 

 

612.0

612.5

0.5

<500

 

 

 

 

 

612.5

613.0

0.5

<500 - 6250

 

 

 

 

 

613.0

613.5

0.5

<500 - 9100

 

 

 

 

 

613.5

614.0

0.5

<500 - 530

 

 

 

 

 

615.5

616.0

0.5

<500

 

 

 

 

 

616.0

616.5

0.5

<500 - 1300

 

 

 

 

 

616.5

617.0

0.5

<500

 

 

 

 

 

617.5

618.0

0.5

<500 - 2700

 

 

 

 

 

620.5

621.0

0.5

<500

 

 

 

 

 

621.0

621.5

0.5

<500

 

 

 

 

 

627.0

627.5

0.5

<500

 

 

 

 

 

627.5

628.0

0.5

<500

 

 

 

 

 

628.0

628.5

0.5

<500

 

 

 

 

 

628.5

629.0

0.5

<500
  • All depths and intervals are meters downhole, true thicknesses are yet to be determined.
  • "Off-scale" refers to >61,000 cps (counts per second) readings by gamma spectrometer type RS-125.
  • "Anomalous" means >500 cps readings by gamma spectrometer type RS-120.
  • Where "CPS Range" is <500 cps, this refers to local low radioactivity within the overall interval.
  • Unconformity of 'N/A' denotes a lack of visible contact between Athabasca sandstone and basement rock.
  • Maximum internal dilution 2.0 m downhole.
  • All depths and intervals are meters downhole, true thicknesses are yet to be determined. Resource modelling in conjunction with an updated mineral resource estimate is required before true thicknesses can be determined.


About NexGen

NexGen Energy is a Canadian company focused on delivering clean energy fuel for the future.  The Company's flagship Rook I Project is being optimally developed into the largest low-cost producing uranium mine globally, incorporating the most elite environmental and social governance standards.  The Rook I Project is supported by an N.I. 43-101 compliant Feasibility Study, which outlines the elite environmental performance and industry-leading economics. NexGen is led by a team of experienced uranium and mining industry professionals with expertise across the entire mining life cycle, including exploration, financing, project engineering and construction, operations and closure.  NexGen is leveraging its proven experience to deliver a Project that leads the entire mining industry socially, technically and environmentally.  The Project and prospective portfolio in northern Saskatchewan will provide generational, long-term economic, environmental, and social benefits for Saskatchewan, Canada, and the world.             
 

NexGen is listed on the Toronto Stock Exchange, the New York Stock Exchange under the ticker symbol "NXE," and on the Australian Securities Exchange under the ticker symbol "NXG," providing access to global investors to participate in NexGen's mission of solving three major global challenges in decarbonization, energy security and access to power.  The Company is headquartered in Vancouver, British Columbia, with its primary operations office in Saskatoon, Saskatchewan.

Contact Information

Leigh Curyer

Chief Executive Officer
NexGen Energy Ltd.

+1 604 428 4112
lcuryer@nxe-energy.ca

www.nexgenenergy.ca

Travis McPherson

Chief Commercial Officer

NexGen Energy Ltd.

+1 604 428 4112

tmcpherson@nxe-energy.ca 

www.nexgenenergy.ca

Monica Kras

Vice President, Corporate Development

NexGen Energy Ltd.

+44 7307 191933

mkras@nxe-energy.ca
www.nexgenenergy.ca

Technical Disclosure*

All technical information in this news release has been reviewed and approved by Jason Craven, NexGen's Vice President, Exploration, a qualified person under National Instrument 43-101.

Natural gamma radiation in drill core reported in this news release was measured in counts per second (cps) using a Radiation Solutions Inc. RS-125 gamma spectrometer. 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.

A technical report in respect of the FS is filed on SEDAR ( www.sedar.com ) and EDGAR (www.sec.gov/edgar.shtml ) and is available for review on NexGen Energy's website (www.nexgenenergy.ca ).

Cautionary Note to U.S. Investors

This news release includes Mineral Reserves and Mineral Resources classification terms that comply with reporting standards in Canada and the Mineral Reserves and the Mineral Resources estimates are made in accordance with NI 43-101. NI 43-101 is a rule developed by the Canadian Securities Administrators that establishes standards for all public disclosure an issuer makes of scientific and technical information concerning mineral projects. These standards differ from the requirements of the Securities and Exchange Commission ("SEC") set by the SEC's rules that are applicable to domestic United States reporting companies. Consequently, Mineral Reserves and Mineral Resources information included in this news release is not comparable to similar information that would generally be disclosed by domestic U.S. reporting companies subject to the reporting and disclosure requirements of the SEC Accordingly, information concerning mineral deposits set forth herein may not be comparable with information made public by companies that report in accordance with U.S. standards.

Forward-Looking Information

The information contained herein contains "forward-looking statements" within the meaning of applicable United States securities laws and regulations 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 mineral reserve and mineral resource estimates, the 2021 Arrow Deposit, Rook I Project and estimates of uranium production, grade and long-term average uranium prices, anticipated effects of completed drill results on the Rook I Project, planned work programs, completion of further site investigations and engineering work to support basic engineering of the project and expected outcomes. 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. Statements relating to "mineral resources" are deemed to be forward-looking information, as they involve the implied assessment that, based on certain estimates and assumptions, the mineral resources described can be profitably produced in the future.

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 mineral reserve and resources estimates and the key assumptions and parameters on which such estimates are based are as set out in this news release and the technical report for the property , the results of planned exploration activities are as anticipated, the price and market supply 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 in the future.

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, the existence of 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, conclusions of economic valuations, the risk that actual results of exploration activities will be different than anticipated, the cost of labour, equipment or materials will increase more than expected, that the future price of uranium will decline or otherwise not rise to an economic level, the appeal of alternate sources of energy to uranium-produced energy, that the Canadian dollar will strengthen against the U.S. dollar, that mineral resources and reserves are not as estimated, that actual costs or actual results of reclamation activities are greater than expected, that changes in project parameters and plans continue to be refined and may result in increased costs, of unexpected variations in mineral resources and reserves, grade or recovery rates or other risks generally associated with mining, unanticipated delays in obtaining governmental, regulatory or First Nations approvals, risks related to First Nations title and consultation, 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 licences, risks related to changes in laws, regulations, policy and public perception, as well as those factors or other risks as more fully described in NexGen's Annual Information Form dated March 6, 2024 filed with the securities commissions of all of the provinces of Canada except Quebec and in NexGen's 40-F filed with the United States Securities and Exchange Commission, which are available on SEDAR at www.sedar.com and Edgar at www.sec.gov .

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 statements or implied by forward-looking information or statements, there may be other factors that cause results not to be as anticipated, estimated or intended. Readers are cautioned not to place undue reliance on forward-looking information or statements due to the inherent uncertainty thereof.

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.