Uranium Exploration in the Athabasca Basin

This IsoEnergy Ltd. profile is part of a paid investor education campaign.*


IsoEnergy Ltd. (TSXV:ISO,OTCQX:ISENF) is a mineral exploration company and subsidiary of NexGen Energy Ltd. (TSX:NXE). The company has built a portfolio of early-stage mineral exploration properties in the prolific eastern Athabasca Basin of Saskatchewan, the home of the world’s highest-grade uranium deposits and mines.

IsoEnergy has a total of 17 properties in its growing portfolio. Of these, five were spun out from NexGen, three were acquired by IsoEnergy and a further seven were incorporated into the portfolio through staking. Sixteen of IsoEnergy’s properties are located in the Athabasca Basin, where the company is primarily focused on exploring its Larocque East, Geiger, Radio and Thorburn Lake properties. These properties host over 15 historic drill holes that have intersected uranium mineralization and have never been followed-up on. Drill testing around these holes is a major priority for the company.

In 2018 IsoEnergy discovered the Hurricane high-grade uranium deposit in its Larocque East property. This is the first significant uranium discovery in the Athabasca Basin in recent years since NexGen discovered its giant Arrow uranium deposit. The highly prospective Larocque East uranium exploration property contains a 15-kilometer portion of the Larocque Lake conductor system.

The discovery hole at Hurricane intersected an 8.5-meter-long thick zone that averages 1.26 percent uranium and included a higher-grade sub-interval of 3.58 percent uranium over 2.5 meters. Further exploration at the Hurricane zone has intersected numerous zones of uranium mineralization. The area remains open along strike and is a focus for IsoEnergy’s future exploration work. Highlights from the company’s most recent drill program include 3.5 meters grading 10.4 percent uranium and four meters grading 3.8 percent uranium.

The Geiger property covers 12,593 hectares of the Athabasca Basin after IsoEnergy expanded the property in late 2017 and early 2018. During a drilling program conducted in January 2018, a 15-meter interval with an average grade of 0.03 percent uranium, 2,600 ppm copper, 998 ppm nickel, 943 ppm zinc and 2.4 g/t silver was discovered.

The Thorburn Lake project is located seven kilometers east of Cameco Corporation’s (TSX:CCO) Cigar Lake mine and on-trend. The Cigar Lake mine has a reported mineral reserve of 221.6 million pounds grading 16.7 percent uranium. IsoEnergy is continuing its exploration of the property and considers it to be highly prospective for uranium deposits. Finally, IsoEnergy’s wholly-owned Radio property is directly adjacent to and on strike with the Roughrider uranium deposit which was acquired by Rio Tinto (LSE:RIO;ASX:RIO;NYSE:RIO) in February 2012. The property also hosts a large magnetic low corridor that may host extensions of the structures found at the Roughrider deposit.

NexGen is a major shareholder with 53.4 percent of IsoEnergy’s shares and has representatives on IsoEnergy’s board of directors. The team at NexGen was responsible for discovering and developing the Arrow deposit, which has an indicated resource of 179.5 million pounds of uranium contained within 1.18 million tonnes grading 6.88 percent uranium and an inferred resource of 122.1 million pounds of uranium contained within 4.25 million tonnes grading 1.30 percent uranium.

IsoEnergy has the support of an experienced exploration team with a track record of success in targeting basement-hosted mineralization. Additionally, the IsoEnergy team, including NexGen founders and board of directors, have been involved in the discovery of two significant uranium ore bodies and over 400 million pounds of uranium. Notably, significant shareholders including NexGen, Cameco, Orano and insiders hold approximately 75 percent of the company shares.

Company Highlights

  • Focused on finding and developing high-grade uranium projects in the vicinity of the Athabasca Basin’s major high-grade uranium deposits.
  • Portfolio of highly-prospective uranium properties in the Athabasca Basin in Saskatchewan.
  • 3,200-hectare Larocque East project hosts approximately 22 kilometers of graphitic conductors.
  • The Hurricane Deposit discovery is the latest significant high-grade uranium discovery in the Athabasca Basin.
  • Significant shareholder NexGen Energy holds 53.4 percent of the company shares.
  • Led by a team of highly skilled uranium professionals with experience spanning exploration, development and production.

Eastern Athabasca Portfolio

Map of IsoEnergy projects in Athabasca Basin
Athabasca Property Map

Evolving exploration models

Traditionally, exploration in the Athabasca region has consisted of evaluating electromagnetic (EM) conductors with single vertical drill holes that are spaced 800 meters apart. If the holes intersected altered or weak mineralization, they were followed up with more drill holes that are spaced 200 meters apart and if these holes were unsuccessful the drill would be moved to the next conductor.

Most of the conductors in the Athabasca Basin have been evaluated using the traditional model, which has led to the major discoveries at McArthur River and Cigar Lake, among others. However, the traditional model has certain limitations and has missed basement hosted mineralization at the Arrow, Gryphon, Roughrider and Millennium deposits.

To target areas that are not covered by the traditional model, IsoEnergy has taken a different approach to discover uranium deposits. The company drills at an angle so they can reach as much of the basement as possible and they conduct extensive testing of zones of weak unconformity alteration and mineralization for their basement-hosted potential. The company’s team pairs their due diligence with their experience to interpret structural geology, clay alteration and trace element geochemistry to identify high-grade uranium along graphitic structures beneath the unconformity. The Arrow, Gryphon and Roughrider deposits were all discovered this way.

“We are focused on the eastern Athabasca where mining infrastructure is excellent,” said IsoEnergy President and CEO Craig Parry. “We’re targeting high grade uranium ore bodies with a team that has a serious track record of success and we are well-funded for exploration at a time when many companies are struggling to raise funds. This all puts us in a great position to kick some goals in exploration and our work is yielding excellent results highlighted by our recent discovery of the Hurricane Deposit.”

Larocque East

The wholly-owned Larocque East project was purchased from Cameco in May 2018 and sits in the Athabasca Basin in Saskatchewan. The property is 35 kilometers northwest of Orano Canada’s McClean Lake uranium mine and mill. IsoEnergy expanded the Laroque East property in June 2019 by staking 4,850 hectares, increasing the property size to 8,371 hectares along an eight-kilometer-long magnetic low corridor known as the Bell North trend.

Larocque East map
Expanded Larocque East Property Map


The property overlaps 15 kilometers of the northeast extension of the Larocque Lake conductor system. The system is a trend of graphitic metasedimentary basement rocks associated with significant uranium mineralization to the southwest of the property. Instances of this phenomenon include the Larocque Lake and Larocque North zones, which sit 6.5 and 0.4 kilometers southwest of the Larocque East boundary, respectively.

The Larocque Lake zone boasts historic intersections of up to 29.9 percent uranium over seven meters and drilling at Larocque North presented results of up to 2.05 percent uranium over 0.8 meters.

The Larocque East property also sits adjacent to the Wollaston-Mudjatik transition zone, which is a significant crustal suture tied to a majority of the major uranium deposits in the Eastern Athabasca Basin. The region also hosts thin sandstone cover of between 140 and 330 meters.

Historical exploration

Larocque East has previously been evaluated with 23 historic drill holes that were completed along 22 kilometers of graphitic conductors. Five zones of weak uranium mineralization were intersected in the historic drilling, including 0.12 percent uranium over 0.1 meters and 0.06 percent uranium over 0.5 meters.

Hurricane zone

As part of IsoEnergy’s summer work program, where the company also drilled seven holes at the Geiger property, a hole was drilled at Larocque East which intersected a broad 8.5-meter-long interval that averaged 1.26 percent uranium and included a higher-grade sub-interval of 3.58 percent uranium over 2.5 meters. Additionally, the higher-grade sub-interval contains a zone containing off-scale radioactivity that averages 6.45 percent uranium over one meter.

isoenergy drill intervals


The mineralization from the intersection is associated with clay and hematite surrounded by hydrothermal alteration envelopes. The zone of mineralization now extends to over 500m and remains open along strike.

In IsoEnergy’s winter drill program, the company hit significant uranium mineralization in 11 out of the 12 holes. Drilling highlights include 3.5 meters grading 10.4 percent uranium, four meters grading 3.8 percent uranium, 4.5 meters grading 4.2 percent uranium and 8.5 meters grading 3.2 percent uranium. IsoEnergy also initiated a 53-line-kilometer DC resistivity survey on the Larocque East property to identify the controlling mineralization at the Hurricane zone, more accurately locate a poorly-understood conductor systems two-kilometers to the south of Hurricane and to generate future drill targets.

The company’ssummer program has continued to expand the deposit and has also identified a major new target to the east of the known deposit. IsoEnergy has intersected 3.5 meters grading 10.4 percent uranium and four meters grading 3.8 percent uranium at the Hurricane zone so far. Mineralization still remains open along strike in both directions.

IsoEnergy plans to test the strike extents of the Hurricane deposit in its 2019 drill program. To date, the company hasintersected more uranium mineralization at the Hurricane zone and identified new target areas along strike to the east. Drill highlights include 10.5 meters grading 1.6 percent uranium and two meters grading 4.6 percent uranium.

Moving forward, IsoEnergy intends to conduct a winter drill program in 2020 that is designed to in-fill large gaps in the current footprint and extend the Hurricane strike zone to the east.


In August 2017, IsoEnergy entered into an agreement with AREVA Resources Canada (now Orano Canada), Cameco Corporation and JCU Exploration Company Ltd. (Canada) to acquire a 100 percent interest in the three mineral claims that comprised the initial 4,188 hectares Geiger property in the eastern Athabasca Basin in Saskatchewan. The property is located 13 kilometers northwest of IsoEnergy’s Radio property and is within 20 kilometers of the Roughrider and Midwest deposits as well as Orano’s McClean Lake uranium mine and mill.

Since the initial acquisition, IsoEnergy has further expanded the property through the stakingof an additional 1,605 hectares in November 2017, as well as the acquisition of 33 claims from Cameco’s Dawn Lake property in March 2018. Following these additions, the total land package for the Geiger project measures 12,594 hectares.

map of geiger property

Historical exploration

A total of 56 drill holes have been completed at Geiger along many kilometers of graphitic conductors. Historic drill results include 2.74 percent uranium over 1.2 meters in drill hole HL-50. However, the property requires additional exploration as there are several other intersections of weak uranium and numerous untested conductor gaps present across the property.

Ongoing Exploration

IsoEnergy completed a winter drill program in January 2018 which successfully extended known mineralization in two locations on the property. Within a 19.3-meter interval of elevated radioactivity, a 15-meter interval averaged 0.03 percent uranium, 2,600 ppm copper, 998 ppm nickel, 943 ppm zinc and 2.4 g/t silver. This broad interval includes individual samples with up to 14,700 ppm copper, 3,130 ppm nickel, 407 ppm cobalt, 3,670 ppm zinc and 6.4 g/t silver. A second, narrower zone of uranium mineralization was intersected deeper in the basement. It consists of a 0.7-meter interval that averages 0.02 percent uranium and 795 ppm copper from a depth of 251.8 to 252.5 meters.

Thorburn Lake

IsoEnergy holds a 100 percent interest in the Thorburn Lake property which is located seven kilometers east of and on trend with Cameco’s Cigar Lake mine and the nearby Thorburn Lake and Wolf Lake uranium deposits. Cameco’s Cigar Lake mine has a reported mineral reserve of 221.6 million pounds grading 16.7 percent uranium. The Cigar Lake mine haul road runs through the property. Additionally, the property sits within 300 meters of the Thorburn Lake uranium occurrence, which has reported numerous significant intersections including 3.2 percent uranium over 8.8 meters.

thornburn property drill holes map

Historical Exploration

In 2008 and 2011, previous owners drilled 14 holes on the property, nine of which intersected elevated uranium geochemistry and/or strong alteration commonly found near uranium deposits. Highlights from the results include an intercept of 0.43 percent uranium over 0.6 meters. A four-kilometer-long conductive zone is present and hosts known mineralization on and adjacent to the property. This target area runs the whole length of the southern boundary of the Thorburn Lake property.

Between 2016 and 2017, IsoEnergy drilled 16 holes for a total of 7,100 meters. The drill program targeted extensions of the mineralization identified in 2011. Several new drill targets have been generated after IsoEnergy completed its 2017 geophysical survey on the unexplored southwestern half of the property.

Ongoing Exploration

Future work on the Thorburn Lake property is expected to include follow-up drilling based on the 2016 and 2017 drilling campaigns as well as remaining drill targets identified by the geophysical survey done in 2017. IsoEnergy believes that the property remains highly prospective for both unconformity and basement hosted uranium mineralization and will continue to explore the property further.

North Thorburn

The North Thorburn property is located five kilometers northwest of the Thorburn Lake property and is 12 kilometers northeast of and along strike of the Cigar Lake mine. The Cigar Lake mine access road runs along the western border of the property. While North Thorburn remains underexplored, it does host several high priority targets that are worthy of follow up exploration.

In October and November 2016, IsoEnergy completed 50 kilometers of DC-resistivity geophysical surveying on the property. Four resistivity low anomalies were discovered in the western and northeastern parts of the survey area. Additionally, results coincided with interpreted structures from previous geophysical surveys and offer the company multiple drill targets for future work programs.

thorburn property map


IsoEnergy has a 100 percent interest in the Radio property which is directly adjacent to and along strike with Rio Tinto’s Roughrider uranium deposit. Radio is also within 50 kilometers of the Rabbit Lake and McClean Lake uranium mills. Other uranium deposits in the area include Dawn Lake and Midwest.

satellite image of radio property with information overlaid


Historical exploration

In 2013, NexGen completed a summer work program that included detailed airborne magnetic and VTEM electromagnetic surveys, ground resistivity, gravity and also completed nine drill holes which totaled 3,472.9 meters. The drilling identified clay alteration and structural disruption in the sandstone and basement rocks which generally indicate that high-grade uranium mineralization may be present or in the vicinity.

In 2016 and 2017, IsoEnergy completed 8,859 meters of drilling, which targeted three east-west magnetic lows, including the Roughrider corridor. The company was able to locate a large zone of clay alteration in the southern magnetic low corridor that is similar to the alteration surrounding the Roughrider deposit.

IsoEnergy’s Other Properties

Full Moon

In November 2017, IsoEnergy announced that they had staked the Full Moon, East Rim and Fox properties.

The 4,872-hectare Full Moon property is located four kilometers north of Orano’s Moonlight uranium occurrence and is 18 kilometers north of the McClean Lake uranium mill. The property hosts several magnetic low trends with historic conductors, including a piece of the Tuning Fork conductor system that extends from Denison Mines Corp.’s (TSX:DML) Hatchet Lake project. The Full Moon project only has 17 historic drill holes within the land package.

East Rim

The 6,703-hectare East Rim property is made up of seven contiguous claims and sits eight kilometers southwest of the West Bear uranium deposit. The property hosts a 15-kilometer-long northeast trending magnetic low feature linked to metasedimentary stratigraphy and four historic drill holes. However, none of the holes are located on the prospective magnetic low feature.


Finally, the 1,374-hectare Fox property is 15 kilometers north of Key Lake and covers a north-south magnetic low trend that runs parallel to the trend that hosts the Millennium uranium deposit. No previous drilling has been done on the property.

The Fox property is surrounded by 425 million pounds of uranium in mined-out and undeveloped deposits with average grades of 5.2 percent uranium. Some of the nearby deposits, including Millennium and Gryphon, are basement-hosted deposits.

Carlson Creek

The Carlson Creek property is located 19 kilometers northeast of the McArthur River mine and is contiguous with UEX Corporation’s (TSX:UEX) Christie Lake property which hosts the Paul Bay and Ken Pen basement-hosted uranium deposits. The McArthur River mine hosts a mineral reserve of 336.5 million pounds that grades 10.94 percent uranium.


Regional aeromagnetics conducted on the property have indicated favorable meta-sediments with possible fault structures which may be the extension of the P2 structural corridor that hosts the McArthur River orebodies. Of the six drill holes completed at Carlson Creek, two intersected graphitic pelitic gneiss, the common host for Athabasca uranium mineralization. Additional exploration work is needed on the property.

carlson creek project map

2Z Lake

The 2Z Lake property is located 12 kilometers from the Sand Lake uranium deposit. Like the nearby Madison Property, 2Z contains shallow unconformity hosted uranium mineralization in historic drilling. The property remains underexplored with no drilling activity since 1987. Shallow historic drilling intersected up to 0.61 percent uranium.

2Z lake property map

The mineralized structures and conductors at 2Z remain underexplored, and have discovery potential for of new basement-hosted uranium deposits.


The Madison property is located 14 kilometers from the Sand Lake uranium deposit. Historic drilling conducted by Eldorado Gold Corp. (TSX:ELD;NYSE:EGO), Denison and Cameco totaled 11 holes including an intercept of 217 ppm uranium. The property contains shallow weak unconformity-hosted uranium mineralization and remains a high priority exploration property.

madison property resistivity map

IsoEnergy has completed a 20-line-kilometer DC-resistivity survey on the property and the data has been combined with NexGen’s 2014 airborne electromagnetic survey to identify several drill targets for follow up.

Mountain Lake

In February 2017, IsoEnergy acquired the Mountain Lake uranium deposit in the Hornby Bay Basin through staking. The property consists of five claims for a total of 5,625 hectares and is located 100 kilometers southwest of Kugluktuk, Nunavut.

mountain lake deposit map

The property was originally discovered in 1976 and has seen intense exploration by Acquitaine Company of Canada and Esso Resources Canada, which completed 190 drill holes for a total of approximately 22,00 meters during the 1970s and 1980s and resulted in the discovery and definition of the Mountain Lake uranium deposit. Between 2005 and 2008, Pitchstone Exploration Ltd. and Triex Minerals Corp. drilled 30 holes, half of which were located within or adjacent to the Mountain Lake deposit.

The deposit is 1,300 meters long and 320 meters wide and features a shallow-dipping, tabular zone of strata-bound mineralization that extends from the top of the bedrock to approximately 180 meters below the surface and ranges from one meter to 6.5 meters thick. High-grade mineralization has been found in drill intercepts. Notable results include 5.19 percent uranium over 0.9 meters.

Additionally, Trimex prepared a resource estimate in 2005 for the Mountain Lake deposit, which consists of a historical inferred resource of 8.2 million pounds with an average grade of 0.23 percent uranium within 1.6 million tonnes of mineralization. However, more work needs to be done to verify the resource outlined by Trimex.


In February 2018, IsoEnergy acquired the Whitewater property through staking in the Athabasca Basin in Saskatchewan. The property consists of 16 contiguous claims and covers 25,966 hectares of the northern rim of the Athabasca Basin. The property was extended in May 2018, when IsoEnergy staked a further 1,562 hectares. Historic grab sample grades from the new land package returned up to 1.36 percent uranium.

In July 2018, the company staked an additional two claims which make up the Whitewater East property. Together, the properties add up to a total of 28,675 hectares.

whitewater project map

“I’m very excited about this addition to the IsoEnergy property portfolio,” said former IsoEnergy director Garrett Ainsworth. “The Whitewater property area shares some geological features with the southwest Athabasca basin region around the Rook 1 property, held by NexGen. Supracrustal rocks of the Tantato domain at Whitewater have been described by several researchers as correlative with those of the Taltson domain that host NexGen’s Arrow deposit at Rook 1. Add to that, the presence of the uranium-fertile Grease River shear zone and numerous uranium occurrences, and you have all the ingredients of a highly prospective uranium exploration property.”

Collins Bay Extension

In October 2019, IsoEnergy acquired the 8,580-hectare Collins Bay Extension property, which is located along the inferred northeastern extension of the Collins Bay trend, less than seven kilometers northeast of Rabbit Lake. Rabbit Lake has been on care and maintenance since 2016 and has produced over 200 million pounds of uranium concentrates since 1975.

The Collins Bay Extension project also covers the extension of the Tent-Seal trend, which hosts Cameco’s Dawn Lake property and several occurrences on Orano’s McClean Lake and UEX’s Hidden Bay projects. The two trends are thought to converge on the Collins Bay Extension property in a complicated zone of conductors that suggests a high degree of structural complexity – a perfect setting for basement hosted uranium mineralization. The total strike length of conductive stratigraphy related to the two trends on the Collins Bay Extension property is over 16 kilometers.

Moving forward, IsoEnergy intends to compile all of the historical data and develop an exploration program for the property. The program may include surface geochemistry, ground geophysics and drilling.

collins bay extension map
Figure 2 – Collins Bay Extension Property Map


In October 2019, IsoEnergy acquired the 4,218-hectare Edge property, which is located nine kilometers northeast of the company’s Laroque East project. The Edge project covers a large area characterized by a low magnetic susceptibility caused by the Wollaston group metasedimentary basement rocks beneath a thin cover of Athabasca sandstone. The property is close to the basin edge, with only 40 meters of Athabasca sandstone recorded in the only historical drill hole completed on the property. That drill hole intersected 10 meters of semi-massive and massive pyrite mineralization in the basement rocks.

Moving forward, IsoEnergy intends to compile all of the historical data and develop an exploration program for the property. The program may include surface geochemistry, ground geophysics and drilling.

athabasca property map
Athabasca Property Map

IsoEnergy’s Management Team

Craig Parry — President, CEO and Director

Craig Parry has over 18 years in the resources sector. He is currently President and Chief Executive Officer of IsoEnergy Ltd. and is a Director of NexGen Energy Ltd.

Parry is a co-founder of EMR Capital and a former senior advisor to the Fund. He was a co-founder of the Tigers Realm Group and was appointed to the Boards of Tigers Realm Minerals, Tigers Realm Metals and NexGen Energy Ltd. (as it then was prior to the Qualifying Transaction) in 2011. He was appointed to the role of CEO of Tigers Realm Coal in 2012. Parry, as an exploration and business development geologist, was responsible for the business development activities of the Tigers Realm Group since inception in 2008.

Prior to joining Tigers Realm, Parry was the Business Development Manager for G-Resources Limited responsible for mergers and acquisitions and principal geologist – New Business at Oxiana Limited and was responsible for strategy and business development initiatives in bulk and energy commodities. At Rio Tinto, he led exploration programs for iron ore, copper, diamonds, coal and bauxite in Australia, Asia and South America and was principal geologist for the Kintyre Uranium project pre-feasibility study. Parry holds an Honours Degree in Geology and is a Member of the AusIMM.

Steve Blower — VP Exploration

Steve Blower is a professional geologist with over 20 years of experience in the minerals industry including mine geology, resource estimation and exploration for a variety of commodities. For the past 12 years, he has been involved in uranium exploration in the Athabasca Basin, most recently as the VP Exploration for Denison Mines. At Denison, Blower led the team that added 75 million pounds of uranium mineral resources to the Wheeler River project through expansion of the Phoenix deposit and the discovery of the Gryphon basement hosted uranium deposit.

Prior to Denison Mines. Blower was President, CEO and a director of Pitchstone Exploration Ltd. until its sale in 2012 to Fission Energy. Blower is a professional geoscientist, holds a B.Sc. degree in Geological Sciences from the University of British Columbia and an MSc. in Geological Sciences from Queen’s university.

Janine Richardson — CFO

Janine Richardson is a Chartered Professional Accountant and has worked in the mining industry for over 30 years. She graduated from McMaster University with a Bachelor in Economics and has a Diploma in Accounting from Wilfred Laurier University.

Richardson is currently the CFO of NxGold Ltd.  From 2010 to 2017, she was the Chief Financial Officer of Hillsborough Resources Limited, a privately-owned coal producer.  Between 2006 and present, Richardson provided financial consulting services to several publicly listed mining companies, primarily in the gold sector, including Atlantic Gold Corporation, Primero Mining Corp., Yukon-Nevada Gold Corp., Rio Alto Mining Ltd. and Goldgroup Mining Inc.  From 1991 to 2006, she was the Director of Group Accounting at Placer Dome Inc. which then operated 17 mines across five countries. At Placer Dome Inc., she was responsible for the financial reporting of global operations and integrating new acquisitions. From 1985 to 1991, Richardson was a manager in the audit group (mining) at Ernst & Young LLP, Toronto.

Andy Carmichael – Senior Geologist

Andy Carmichael is a professional geologist with over 14 years in mineral exploration, including more than 11 years in uranium exploration in the Athabasca Basin, Honby Bay Basin, Colorado Plateau and Namibia.

Leigh Curyer — Chairman of the Board

Leigh Curyer has over 20 years of experience in the resources and corporate sector. He is the current President and Chief Executive Officer of NexGen Energy Ltd. and was previously the Chief Financial Officer and head of corporate development of Southern Cross Resources (now Uranium One). In addition, for three years, he was Head of Corporate Development for Accord Nuclear Resource Management assessing uranium projects worldwide for First Reserve Corporation, a global energy-focused private equity and infrastructure investment firm.

Curyer’s uranium project assessment experience has been focused on assets located in Canada, Australia, US, Africa, Central Asia and Europe, incorporating operating mines, advanced development projects and exploration prospects. While Chief Financial Officer of Southern Cross Resources (now Uranium One), he managed the exploration, permitting and feasibility study of the Honeymoon uranium project in South Australia, ensuring full compliance with NI43-101 reporting.

He has raised over $500 million of equity in North America, US, Europe and Australia. Curyer is a member of the Institute of Chartered Accountants Australia.

Christopher McFadden — Director

Christopher McFadden is a lawyer with 21 years of experience in exploration and mining and is currently the President and Chief Executive Officer of NxGold Ltd., the Chairman of NexGen Energy Ltd. and a Director of IsoEnergy Ltd. He was previously Manager of Business Development at Newcrest Mining Limited, and before that was Head of Commercial, Strategy and Corporate Development for Tigers Realm Coal Limited, which is listed on the Australian Stock Exchange. Additionally, he was General Manager of Business Development of Tigers Realm Minerals Pty Ltd.

Prior to commencing with the Tigers Realm Group in 2010, McFadden was a Commercial General Manager with Rio Tinto’s exploration division with responsibility for gaining entry into new projects through negotiation with government or joint venture partners, or through acquisition. He has extensive international experience in managing large and complex transactions and has a broad knowledge of all aspects of project evaluation and negotiation in challenging and varied environments. He holds a combined law and commerce degree from Melbourne University and an MBA from Monash University.

Richard Patricio — Director

Richard Patricio is currently a Director of NexGen Energy Ltd. and is the President and Chief Executive Officer of Mega Uranium Ltd. (since February 2015), having been its Executive Vice President since 2005. Until recently, he was also the Chief Executive Officer of Pinetree Capital Ltd. (a TSX-listed investment company specializing in early-stage resource investments).

Patricio previously worked as in-house General Counsel for a senior TSX-listed manufacturing company. Prior to that, he practiced law at Osler LLP in Toronto where he focused on mergers and acquisitions, securities law and general corporate transactions. He has built a number of mining companies with global operations and has held senior officer and director positions in several companies listed on stock exchanges in Toronto, Australia, London and New York. He received his law degree from Osgoode Hall and was called to the Ontario bar in 2000.

Trevor J. Thiele — Director

Trevor Thiele has over 30 years of experience in senior finance roles in medium to large Australian ASX-listed companies. He has been Chief Financial Officer for companies involved in the Agribusiness sector (Elders and Viterra) and the Biotechnology sector (Bionomics). In these roles, he combined his technical accounting and financial skills with commercial expertise thereby substantially contributing to the growth of each of these businesses. During this time, he was actively involved in IPO’s, capital raisings, corporate restructures, mergers and acquisitions, refinancing and joint ventures.

Thiele is currently a Director of NexGen Energy and non-executive director of a number of non-listed Australian entities, including the role of Chairman of the board for two of these entities. He holds a Bachelor of Arts in Accountancy from the University of South Australia and is a member of the Institute of Chartered Accountants in Australia.


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