Regional, Rook I

NexGen Energy holds the most dominant land position in the southwest Athabasca Basin of Saskatchewan. The Rook I property alone hosts the world-class Arrow Deposit as well as the South Arrow discovery (July 2017), the Harpoon discovery (August 2016), the Bow discovery (March 2015) and the Cannon discovery (April 2016) – all of which are along the Patterson Corridor.

The primary focus of the Company is to continue through advanced engineering in support of mine and mill construction at the Arrow Deposit, and for further exploration drilling at untested locations and at known uranium occurrences on the Rook I property.

The Bow Discovery

On March 31, 2015 NexGen hit off-scale radioactivity 3.7 km northeast along the Patterson Lake Conductor corridor further inside the Athabasca Basin. Drill hole BO-15-10 intersected 2.5 m total composite mineralization including 0.10 m off-scale radioactivity (>10,000 to 10,200 cps) within a 5.0 m section (206.5 to 211.5 m). The Bow Discovery was made by targeting geophysical signatures similar to Arrow coincident with 'breaks' in the VTEM conductor along with radon in water surveys.

Winter 2016 Drilling

The Company will continue to advance Bow with planned holes to test coincident VTEM and radon in lake water anomalies, and structural traps interpreted from previous drilling and geophysical surveys. The Company will use its highly successful drilling methodology from Arrow on Bow as well by employing bold step outs and using angled drill holes.

While the Company will always maintain a deep focus on Arrow given its unique characteristics due to the fact it is land-based, basement-hosted and high-grade, we always believe it is prudent to decipher the potential value locked in the regional targets across the Rook I property, including the Bow discovery.