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NexGen Energy Ltd
(NYSE:NXE) 

NXE stock logo

NexGen Energy Ltd., an exploration and development stage company, engages in the acquisition, exploration, and evaluation and development of uranium properties in Canada. Its principal asset is the Rook I project that consists of 32 contiguous mineral claims totaling an area of 35,065 hectares locat...

Founded: 2011
Full Time Employees: 42
Sector: Energy
Industry: Uranium

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At a glance:
  • Early-Stage Uranium Developer with Key Asset in Canada: NexGen Energy is primarily an exploration/development-stage uranium company, best known for its flagship Rook I project in Saskatchewan’s Athabasca Basin.
  • Value Tied to Project Permitting, Financing, and Development Milestones: As a pre-production company, investor focus typically centers on regulatory approvals, project timelines, capital requirements, and progress toward construction readiness.
  • High Sensitivity to Uranium Price and Nuclear Fuel Cycle Sentiment: The company’s valuation often moves with uranium spot/term price expectations, utility contracting activity, and broader nuclear energy sentiment.
  • Funding and Dilution Risk Common for Pre-Revenue Developers: With limited operating cash flow, NexGen generally depends on cash reserves and external funding; future project financing decisions can materially affect dilution and leverage.
  • Project Concentration Increases Execution and Single-Asset Risk: A large portion of the investment thesis is concentrated in successful advancement of Rook I, making execution, cost control, and schedule adherence especially important.
Bull Thesis:
  • World-Class, High-Grade Arrow Deposit: NexGen's Arrow deposit is recognized as one of the largest and highest-grade undeveloped uranium deposits globally. Its exceptional grade is expected to translate into industry-leading low operating costs, providing significant economic resilience and competitive advantage once in production.
  • Robust Uranium Market Fundamentals: The global uranium market is experiencing a strong bull cycle driven by increasing demand for nuclear power as a clean, reliable energy source for decarbonization and energy security. Projected supply deficits are expected to keep prices elevated, significantly enhancing the project's profitability and financing prospects.
  • Advanced Permitting & De-risking: NexGen has made substantial progress on the permitting front, including provincial environmental assessment approval and advanced stages of federal environmental assessment. This de-risks the project significantly, moving it closer to a Final Investment Decision (FID) and construction, reducing uncertainty for investors.
  • Strong Financial Position & Funding Potential: The company maintains a healthy cash balance and has demonstrated access to capital markets. Given the quality of the asset and the positive market outlook, NexGen is well-positioned to secure the necessary project financing through a combination of debt, equity, and potential strategic partnerships or off-take agreements.
Bear Thesis:
  • Substantial Capital Expenditure & Financing Risk: Developing a project of the Rook I scale requires billions in capital expenditure. While NexGen has a strong balance sheet, securing the full project financing without significant shareholder dilution or under potentially unfavorable terms remains a key challenge and risk.
  • Permitting & Regulatory Delays: Despite significant progress, large-scale mining projects are inherently complex and subject to potential delays in final regulatory approvals, unforeseen environmental hurdles, or opposition from various stakeholders, which could push back the production timeline and increase costs.
  • Uranium Price Volatility: While the current uranium market is strong, the commodity has historically been subject to significant price volatility. A sustained downturn in uranium prices, driven by geopolitical events, changes in energy policy, or oversupply, could severely impact the project's economics and profitability.
  • Construction & Execution Risk: The transition from development to construction and then to full-scale operation carries inherent risks. These include potential cost overruns, construction delays, labor shortages, and unforeseen technical challenges during mine development and plant commissioning, which could impact initial production targets and profitability.
Main Competitors:
  • Cameco Corporation ($CCO (TSX), CCJ (NYSE)) (Uranium production and sales), As the largest publicly traded uranium producer, Cameco operates high-grade mines (e.g., McArthur River, Cigar Lake) in the same Athabasca Basin region as NexGen. They compete directly for market share, long-term supply contracts, and investor capital within the premium uranium sector. Cameco's established production, financial strength, and market influence pose significant competition to NexGen's aspirations to become a major producer.
  • Kazatomprom ($KAP (LSE), KZAPF (OTC)) (Uranium production and sales), The world's largest uranium producer by volume, Kazatomprom (majority state-owned by Kazakhstan) dominates global supply through its low-cost In-Situ Recovery (ISR) operations. NexGen competes with Kazatomprom for overall global market share and influence on uranium pricing, as both aim to supply a recovering market. Kazatomprom's scale and cost structure set a high bar for new entrants.
  • Denison Mines Corp. ($DML (TSX), DNN (NYSE American)) (Uranium exploration and development), Denison is a direct peer to NexGen, also focused on developing high-grade uranium projects in the Athabasca Basin, most notably the Wheeler River Project (Phoenix and Gryphon deposits). They compete for investor capital, skilled personnel, and ultimately, future market share from new production in the same world-class mining district. Denison's focus on ISR mining at Phoenix offers a different development approach compared to NexGen's conventional underground plan for Arrow.
  • Paladin Energy Ltd ($PDN (ASX), PALAF (OTC)) (Uranium production and sales), Paladin Energy is bringing its Langer Heinrich mine in Namibia back into production, representing a significant source of new uranium supply entering the market. While geographically distant, Paladin competes with NexGen for global market share and long-term supply contracts as the uranium market recovers. Their re-start demonstrates the broader competitive landscape of existing mines coming back online versus new projects like NexGen's.
Moat:
NexGen Energy Ltd. operates in a highly specialized and capital-intensive industry, with its primary moat being the exceptionally high-grade and large-scale Arrow deposit within its Rook I Project in Canada's Athabasca Basin. This project has the potential to be one of the lowest-cost uranium producers globally, offering a significant competitive advantage in terms of operational margins. Competition primarily stems from established major producers like Cameco and Kazatomprom, who control significant existing supply and market influence. Additionally, other Athabasca Basin developers like Denison Mines compete for investor capital and future market share, while re-starting mines globally (e.g., Paladin Energy) add to the overall supply landscape. NexGen's challenge and opportunity lie in successfully navigating the permitting, financing, and construction phases to bring its world-class asset into production, thereby disrupting the existing oligopoly and capitalizing on anticipated growth in nuclear energy demand.
Income Statements:
Quarterly
Annual
    Unit: USD2024-09-30 2024-06-30 2024-03-31 2023-09-30 2023-03-31 2022-11-04 2022-08-05 2022-03-31 2021-09-30 2021-06-30 2021-03-31 2017-03-31 
                
      expenses
                
      salaries, benefits and directors’ fees
    2,363,000 2,628,000 2,741,000   1,923,000 1,867,000 1,870,000 1,587,000 2,026,000 2,451,000 866,247 
      office, administrative, and travel
    4,540,000 4,612,000 5,153,000 4,406,000 3,473,000 1,996,000 1,558,000 1,353,000 889,000 651,000   
      professional fees and insurance
    2,993,000 3,790,000 3,022,000 6,661,000 1,608,000 1,478,000 1,373,000 615,000 794,000    
      depreciation
    580,000 564,000 516,000 483,000 399,000 475,000 446,000 438,000 508,000 540,000 544,000 212,277 
      share-based payments
    8,236,000 6,018,000 6,066,000 10,901,000 6,483,000 9,830,000 6,340,000 7,396,000 4,706,000 11,381,000 2,197,000 2,000,354 
      finance income
    6,277,000 5,923,000 3,505,000 1,103,000 -1,356,000 896,000 491,000  -259,000 -280,000 -125,000 -174,497 
      mark-to-market gain on convertible debentures
    32,867,000 29,714,000 -16,282,000    28,504,000      
      interest expense on convertible debentures
    -11,295,000 -6,056,000 -3,375,000  688,000 -542,000 -529,000 518,000 519,000 492,000 2,228,000  
      interest on lease liabilities
    -25,000 -31,000 -33,000  44,000 -50,000 -54,000 57,000 63,000 70,000 72,000  
      share of net income from associate
    1,359,000 -1,940,000 -1,577,000          
      loss on dilution of ownership interest in associate
    -256,000            
      loss on disposal of assets
                
      foreign exchange gain
    -474,000 68,000 729,000 680,000  949,000 474,000  -430,000 251,000 178,000 146,381 
      other income
     -159,000       -11,000 -18,000   
      income before taxes
    9,741,000 9,841,000 -34,310,000   -27,527,000 17,302,000 30,654,000 18,912,000 19,273,000 68,385,000  
      deferred income tax recovery
    511,000 3,355,000 -310,000 316,000 -776,000 229,000 283,000      
      net income
    10,252,000 13,196,000 -34,620,000  9,107,000 -27,298,000 17,585,000 30,402,000 19,929,000 19,799,000 68,116,000  
      yoy
    12.57% -148.34% -296.87%  -54.30% -237.88% -74.18%      
      qoq
    -22.31% -138.12%   -133.36% -255.23% -42.16% 52.55% 0.66% -70.93%   
      items that may not be reclassified subsequently to profit or loss:
                
      change in fair value of convertible debenture attributable to the change in credit risk
    1,894,000 12,425,000    -45,000 196,000  -72,000 -3,000 295,000  
      change in fair value of marketable securities
         872,000 -2,359,000 923,000 -5,424,000 -933,000   
      deferred income tax expense
    -511,000        1,017,000 526,000 -269,000 180,622 
      share of other comprehensive income of associate
    -168,000 -630,000 2,377,000          
      net comprehensive income
    11,467,000 21,636,000     15,722,000      
      net income attributable to:
                
      shareholders of nexgen energy ltd.
    10,252,000 13,196,000 -34,620,000   -21,895,000 13,484,000 25,673,000 17,827,000 18,894,000 66,090,000 25,477,182 
      non-controlling interests
       30,480 36,308 -5,403,000 4,101,000 4,729,000 2,102,000 905,000 2,026,000  
      net comprehensive income attributable to:
                
      earnings per share attributable to nexgen energy ltd. shareholders
                
      basic earnings per share
    0.02 0.02     0.03      
      diluted loss per share
    -0.02 -0.02           
      weighted-average common shares outstanding
                
      basic
    564,693,987 551,519,415 536,646,284    479,283,015      
      diluted
    621,899,927 613,813,089     504,256,307      
      gain on dilution of ownership interest in associate
     -66,000 221,000          
      change in fair value of convertible debenture attributable to the change in credit risk of the company
      -1,148,000          
      net comprehensive loss
      -33,081,000   -26,584,000  31,176,000 15,166,000 18,977,000 68,361,000  
      net comprehensive loss attributable to:
                
      loss per share attributable to nexgen energy ltd. shareholders
                
      basic and diluted loss per share
      -0.06   -0.05  0.05 0.04 0.04 0.17  
      weighted-average common shares outstanding
                
      basic
    564,693,987 551,519,415 536,646,284    479,283,015      
      salaries, benefits, and directors’ fees
       2,185,000 2,249,000        
      mark to market loss on convertible debentures
        -3,804,000       20,159,948 
      gain on disposal of assets
         -85,000       
      loss before taxes
        9,883,000        
      basic and diluted loss per share attributable to nexgen shareholders
        0.01        
      000s
                
      current assets
                
      cash
       370,444 135,909        
      marketable securities
       7,240 5,385        
      amounts receivable
       1,546 1,917        
      prepaid expenses and other assets
       6,414 2,771        
      lease receivable
       470         
      non-current assets
                
      exploration and evaluation assets
       489,456 423,546        
      property and equipment
       5,282 4,678        
      deposits
       82 76        
      total assets
       884,564 574,282        
      current liabilities
                
      accounts payable and accrued liabilities
       27,437 11,686        
      lease liabilities
       829 794        
      flow-through share premium liability
        569        
      non-current liabilities
                
      convertible debentures
       189,206 76,290        
      long-term lease liabilities
       1,060 1,484        
      deferred income tax liabilities
       1,379 1,538        
      total liabilities
       219,911 92,361        
      equity
                
      equity attributable to nexgen energy ltd. shareholders
       634,173 445,613        
      total shareholders’ equity
       664,653 481,921        
      development of rook i project
                
      site investigation
       9,000 9,000        
      process plant optimizations
       1,500 1,500        
      engineering1
       35,000 35,000        
      permitting and other development costs1
                
      pre-commitment early works1
       94,500 94,500        
      general working capital
       23,290 23,290        
      exploration1
                
      total2
       163,290 163,290        
      foreign exchange loss
        99,000   227,000     
      mark-to-market loss on convertible debentures
         -12,993,000  18,431,000 11,920,000 5,913,000 59,009,000  
      weighted-average common shares outstanding
                
      basic and diluted
         479,504,037  479,267,770 472,337,597 471,861,473 407,466,970  
      gain on sale of assets
            -1,374,000 -2,236,000   
      diluted (loss) per share
          -0.02      
      loss per share attributable to nexgen energy ltd. equity holders
                
      professional fees
             483,000 829,000 297,293 
      office and administrative
              971,000 390,206 
      travel
              31,000 129,012 
      other incomes
                
      interest expense
               1,498,725 
      income from operations
               25,525,946 
      yoy
                
      qoq
                
      loss and comprehensive loss for the period
               25,706,568 
      loss and comprehensive loss attributable to:
                
      non-controlling interests in isoenergy ltd.
               229,386 
      loss per common share attributable to the company’s common shareholders – basic and diluted
               0.08 
      weighted-average number of common shares outstanding – basic and diluted
               306,387,694 
    Balance Sheets:
    Quarterly
    Annual
      Unit: USD2025-09-30 2025-06-30 2025-03-31 2024-09-30 2024-06-30 2024-03-31 2023-09-30 2023-06-30 2023-03-31 2022-11-04 2022-09-30 2022-08-05 2022-06-30 2022-03-31 2021-09-30 2021-06-30 2021-03-31 2020-09-30 2020-06-30 2020-03-31 2019-09-30 2019-06-30 2019-03-31 2018-09-30 2018-06-30 2018-05-14 2018-03-31 2017-09-30 2017-08-10 2017-06-30 2017-03-31 
                                     
        assets
                                     
        current assets
                                     
        cash
      305,985,000 371,556,000 434,640,000 537,766,000 572,363,000 383,159,000 370,444,000 100,571,000 135,909,000 140,582,000 140,582,000 161,237,000 161,237,000 187,495,000 227,844,000 234,192,000 226,798,000 78,622,079              
        amounts receivable
      2,252,000 977,000 945,000 1,238,000 1,323,000 3,627,000 1,546,000 1,119,000 1,917,000 1,017,000 1,017,000 862,000 862,000 864,000 665,000 370,000 258,000 237,061 378,433 491,853 607,005 771,672 1,259,839 499,576 359,695 566,745 566,745 836,483 462,539 462,539 861,987 
        prepaid expenses and other assets
      9,122,000 9,392,000 11,765,000 5,197,000 8,504,000 11,122,000 6,414,000 10,874,000 2,771,000 1,934,000 1,934,000 2,760,000 2,760,000 1,494,000 1,465,000 1,538,000  371,557 599,460 624,989 745,744 951,940 589,717         
        lease receivable
      512,000 512,000 512,000 512,000 512,000 512,000 470,000 342,000                        
        current assets - sum
      317,871,000 382,437,000 447,862,000 544,713,000 582,702,000 398,420,000 386,114,000 120,118,000 145,982,000     198,245,000 239,875,000 239,101,000 227,380,000               
        non-current assets
                                     
        exploration and evaluation assets
      731,611,000 648,146,000 613,758,000 549,296,000 507,585,000 484,112,000 489,456,000 452,206,000 423,546,000 389,265,000 389,265,000 365,275,000 365,275,000 345,905,000 304,863,000 288,486,000 280,619,000 266,566,135 262,403,166 259,604,851 238,491,804 226,399,040 212,359,046 186,027,558 174,476,196 166,754,474 166,754,474 142,339,673 127,446,789 127,446,789 120,939,270 
        property and equipment
      6,695,000 7,228,000 7,442,000 5,859,000 5,910,000 5,945,000 5,282,000 5,315,000 4,678,000 5,491,000 5,491,000 5,966,000 5,966,000 6,290,000 6,765,000 7,197,000       9,296,600         
        investment in associate
      158,131,000 156,601,000 146,982,000 239,436,000 238,501,000 241,137,000                          
        strategic inventory
      341,150,000 341,150,000 341,150,000 341,150,000 341,150,000                           
        other non-current assets
      10,719,000 10,666,000 9,776,000                             
        total assets
      1,566,177,000 1,546,228,000 1,566,970,000 1,683,654,000 1,679,176,000 1,133,070,000 884,564,000 581,473,000 574,282,000 545,269,000 545,269,000 542,209,000 542,209,000 550,516,000 551,579,000 534,869,000 515,343,000 353,996,343 348,010,080 314,044,178 320,248,916 321,328,785 327,478,652 326,419,298 325,030,895 331,094,068 331,094,068 328,444,240 191,478,953 191,478,953 192,575,943 
        liabilities
                                     
        current liabilities
                                     
        accounts payable and accrued liabilities
      31,217,000 20,218,000 35,805,000 37,660,000 20,438,000 26,588,000 27,437,000 16,909,000 11,686,000 17,349,000 17,349,000 12,738,000 12,738,000 15,273,000 14,264,000 5,019,000 4,757,000 5,592,513 2,735,295 6,365,654 10,014,316 5,477,313 8,528,611 8,761,103 3,795,486 10,490,188 10,490,188 7,555,430 1,407,068 1,407,068 4,845,820 
        interest payable
      13,906,000                               
        lease liabilities
      437,000 560,000 678,000 990,000 968,000 945,000 829,000 812,000 794,000 756,000 756,000 737,000 737,000 719,000 694,000 768,000 867,000               
        convertible debentures
      592,301,000 488,520,000 424,313,000 429,924,000 464,685,000 175,908,000 189,206,000 78,986,000 76,290,000 74,754,000 74,754,000 61,716,000 61,716,000 90,416,000 73,614,000 61,766,000 55,857,000 176,962,296 155,403,789 116,499,810 118,315,673 125,266,147 122,233,444 161,692,664 150,666,483 136,146,330 136,146,330 147,931,103 82,696,578 82,696,578 90,971,749 
        current liabilities - sum
      637,861,000 509,298,000 460,796,000 468,574,000 486,091,000 203,441,000 28,266,000 17,721,000 13,049,000     15,992,000 14,958,000 5,787,000 5,624,000               
        non-current liabilities
                                     
        derivative liability
      1,536,000 3,024,000                              
        other non-current liabilities
      7,979,000 8,017,000 2,763,000                             
        total liabilities
      647,376,000 520,339,000 463,559,000 468,840,000 486,614,000 204,213,000 219,911,000 99,586,000 92,361,000 96,212,000 96,212,000 78,854,000 78,854,000 110,846,000 94,000,000 71,466,000 64,849,000 187,998,713 163,742,458 128,734,769 132,044,665 134,540,657 134,698,807 170,930,326 155,077,408 147,099,026 147,099,026 155,968,913 84,691,934 84,691,934 96,417,573 
        equity
                                     
        share capital
      1,437,017,000 1,421,237,000 1,406,831,000 1,388,054,000 1,385,500,000 1,146,736,000 995,390,000 758,463,000 741,256,000 697,874,000 697,874,000 697,067,000 697,067,000 696,673,000 684,290,000 681,575,000 653,882,000 245,554,564 244,779,344 218,787,664 214,596,888 214,560,948 210,450,776 204,957,719 202,819,275 199,606,846 199,606,846 193,732,328 130,609,420 130,609,420 126,006,242 
        reserves
      157,810,000 150,224,000 147,416,000 132,783,000 124,552,000 121,247,000 105,987,000 99,110,000 100,501,000 88,837,000 88,837,000 80,858,000 80,858,000 75,041,000 61,258,000 57,252,000 55,679,000 53,529,078 55,413,137 53,479,155 49,163,068 47,000,169 43,766,931 37,859,574 35,247,213 29,099,792 29,099,792 22,563,531 21,582,334 21,582,334 19,593,610 
        accumulated other comprehensive income
         9,153,000 7,938,000  830,000 170,000 254,000 965,000 965,000 611,000 611,000 1,511,000 2,231,000     5,176,967 -716,204  97,675   -503,146 -503,146     
        accumulated deficit
         -315,176,000 -325,428,000 -338,624,000  -415,546,000 -396,398,000 -366,695,000 -366,695,000 -344,800,000 -344,800,000  -317,152,000 -300,288,000 -282,130,000 -153,637,652 -131,592,949 -113,339,678 -90,754,440 -90,220,533 -77,909,447 -101,492,429 -82,490,124 -57,965,176 -57,965,176 -55,981,539 -54,788,965 -54,788,965 -58,220,798 
        total equity
      918,801,000 1,025,889,000 1,103,411,000 1,214,814,000 1,192,562,000 928,857,000 664,653,000 481,887,000 4,819,000 449,057,000 449,057,000 463,355,000 463,355,000 439,670,000 457,579,000 463,403,000 450,494,000 165,997,630 184,267,622 185,309,409 188,204,251 186,788,128 192,779,845 155,488,972 169,953,487 183,995,042 183,995,042 172,475,327 106,787,019 106,787,019 96,158,370 
        total liabilities and equity
      1,566,177,000 1,546,228,000 1,566,970,000 1,683,654,000 1,679,176,000 1,133,070,000 884,564,000 581,473,000 574,282,000 545,269,000 545,269,000 542,209,000 542,209,000 550,516,000 551,579,000 534,869,000 515,343,000 353,996,343 348,010,080 314,044,178 320,248,916 321,328,785 327,478,652 326,419,298 325,030,895 331,094,068 331,094,068 328,444,240 191,478,953 191,478,953 192,575,943 
        marketable securities
            7,240,000 7,212,000 5,385,000 6,904,000 6,904,000 6,033,000 6,033,000 8,392,000 9,901,000 3,001,000                
        deposits
         82,000 82,000 82,000 82,000 76,000 76,000 76,000 76,000 76,000 76,000 76,000 76,000 85,000 85,000 85,494 85,495 95,565 119,835 119,835 119,838 94,711 94,711 36,748 36,748 32,927 32,927 32,927 32,927 
        flow-through share premium liability
              569,000          70,453 85,769 35,667 242,166 357,890  181,376 17,884 17,884 147,719 161,391 161,391 44,849 
        long-term lease liabilities
         266,000 523,000 772,000 1,060,000 1,274,000 1,484,000 1,889,000 1,889,000 2,086,000 2,086,000 2,278,000 2,645,000 2,880,000 2,976,000 3,439,166 3,649,406 3,852,004 2,204,494 2,320,312 2,472,276         
        deferred income tax liabilities
            1,379,000 1,605,000 1,538,000 1,464,000 1,464,000 1,577,000 1,577,000 2,160,000 2,783,000 1,033,000 392,000               
        equity attributable to nexgen energy ltd. shareholders
         1,214,814,000 1,192,562,000 928,857,000 634,173,000 442,197,000 445,613,000 420,981,000 420,981,000 433,736,000 433,736,000 414,782,000 430,627,000 438,422,000 426,917,000               
        non-controlling interests
            30,480,000 39,690,000 36,308,000 28,076,000 28,076,000 29,619,000 29,619,000 24,888,000 26,952,000 24,981,000 23,577,000 26,131,453 21,004,772 21,205,301 15,914,939 16,163,748 16,373,910 14,667,254 14,880,269 13,756,726 13,756,726 12,161,007 9,384,230 9,384,230 8,779,316 
        accumulated other comprehensive loss
           -502,000          -117,000 -514,000 -5,579,813 -5,336,682   -716,204  -503,146 -503,146       
        prepaid expenses and other
                      324,000               
        equipment
                      7,259,000 8,114,017 8,741,868 9,284,890 8,172,455 8,762,645  6,706,803 6,648,607 5,903,488 5,903,488 4,206,279 3,873,967 3,873,967 3,713,135 
        current
                                     
        current - sum
                       79,230,697 76,779,551 45,058,872 73,464,822 86,047,265 105,703,168 133,590,226 143,811,381 158,399,358  181,865,361 60,125,270  67,890,611 
        non-current
                                     
        non-current - sum
                       274,765,646 271,230,529 268,985,306 246,784,094 235,281,520 221,775,484 192,829,072 181,219,514 172,694,710  146,578,879 131,353,683  124,685,332 
        current portion of lease liabilities
                       778,642 791,819 765,495 599,291 637,712 637,437         
        deferred income tax liability
                       1,226,096 1,091,696 1,166,037 875,224 597,007 469,149 433,122 380,602 381,139 381,139 251,128 333,339 333,339 451,573 
        equity - sum
                       139,866,177 163,262,850 164,104,108 172,289,312 170,624,380 176,405,935 140,821,718 155,073,218 170,238,316  160,314,320 97,402,789  87,379,054 
        cash and cash equivalents
                        75,801,658 43,942,030 72,112,073 84,323,653 103,853,612 132,713,083 142,929,234 157,655,177 157,655,177 180,725,909 46,302,691 46,302,691 53,535,035 
        deferred lease inducement
                             43,437 53,461 63,485 63,485 83,533 93,558 93,558 103,582 
        prepaid expenses
                             377,567 522,452 177,436 177,436 302,969 383,040 383,040 171,589 
        nature of operations
                                     
        commitments
                                     
        short-term investments
                                  12,977,000 12,977,000 13,322,000 
      Cashflow Statements:
      Quarterly
      Annual
        Unit: USD2025-09-30 2025-06-30 2025-03-31 2024-09-30 2024-06-30 2024-03-31 2023-09-30 2023-06-30 2023-03-31 2022-09-30 2022-06-30 2022-03-31 2021-09-30 2021-06-30 2021-03-31 2020-09-30 2020-06-30 2020-03-31 2019-09-30 2019-06-30 2019-03-31 2018-09-30 2018-06-30 2018-05-14 2017-09-30 2017-08-10 2017-03-31 
                                   
          net income for the period:
           -2,944,000      -44,883,000                  
          adjust for:
                                   
          depreciation
        28,000 -19,000 549,000 16,000 48,000 516,000 57,000 27,000 399,000 29,000 8,000 438,000 -32,000 -4,000 544,000 602,677 552,180 535,701 596,321 598,995 588,662 890,069 339,970 283,599 581,420 371,112 212,277 
          share-based payments
        7,251,000 151,000 3,664,000 2,218,000 -48,000 6,066,000 5,211,000 -793,000 6,483,000 3,490,000 -1,056,000 7,396,000 -6,675,000 9,184,000 2,197,000 1,459,545 2,701,467 1,677,698 2,090,369 3,522,771 2,442,373 9,969,076 5,433,453 1,707,557 5,034,528 3,740,796 2,000,354 
          mark-to-market loss on convertible debentures
        39,576,000                           
          interest expense on convertible debentures
        -503,000 37,000 11,624,000 5,239,000 2,681,000 3,375,000 301,000 2,000 688,000 13,000 11,000 518,000 27,000 -1,736,000 2,228,000             
          interest on lease liabilities and accretion expense
                                   
          share of net loss from associate
           -3,299,000 363,000 1,577,000                      
          loss on dilution of ownership interest in associate
        3,504,000 -7,952,000 7,956,000 190,000                        
          impairment loss on investment in associate
          81,009,000                         
          mark-to-market loss on derivative instruments
         2,962,000 31,000                         
          deferred income tax (recovery) expense
        -2,000         54,000                  
          unrealized foreign exchange loss
         1,656,000 34,000 722,000 661,000 -729,000  252,000 39,000   227,000 -681,000 73,000 178,000             
          other expense
                                   
          operating cash flows before working capital
           1,668,000 2,304,000 -7,411,000  -2,129,000 -6,034,000 -194,000   -149,000 1,295,000 -4,157,000             
          changes in working capital items:
                                   
          amounts receivable
          782,000   -1,773,000  912,000 -114,000 -158,000 -308,000 312,000 -177,000 -66,000 48,000 141,372 113,420 118,268 164,667 488,167 -621,363 48,493 207,050 -18,676 -29,036 344,908 -54,540 
          prepaid expenses and other
         -343,000 1,487,000 -1,028,000 299,000 840,000 12,036,000 -8,026,000 -78,000 2,094,000   1,306,000 -1,568,000 355,000             
          accounts payable and accrued liabilities
          4,568,000 1,120,000 285,000 -1,000,000 625,000 1,807,000 -1,416,000 -188,000   1,666,000 -765,000 579,000 -266,649 245,787 -74,612 -279,233 801,394 -2,150,419 -402,984 -104,183 -695,429 -891,987 -935,174 1,110,866 
          cash from operating activities
           -456,000 6,964,000 -9,344,000   -7,642,000 1,554,000   2,655,000 -1,104,000 -3,175,000             
          capital expenditures
           158,000                 
          free cash flows
           -298,000 6,964,000 -9,344,000   -7,642,000 1,554,000   2,655,000 -1,104,000 -3,175,000             
          expenditures on exploration and evaluation assets
           -5,445,000 6,840,000 -32,894,000  -4,257,000 -18,472,000 2,562,000   -2,981,000 3,078,000 -8,032,000             
          acquisition of property and equipment
           158,000                        
          investment in isoenergy
                                   
          cash from investing activities
           -5,287,000 7,210,000 -33,951,000   -18,502,000 2,563,000   -3,213,000 3,139,000 -8,256,000             
          proceeds from at-the-market equity program, net of issuance costs
             130,237,000   27,037,000                   
          proceeds from asx cdi offering, net of issuance costs
           -216,862,000                        
          proceeds from exercise of stock options
        6,457,000 3,711,000 557,000                         
          restricted cash
                                   
          payment of lease liabilities
           -3,000 1,000 -258,000  -3,000 -229,000 -2,000   15,000 -3,000 -261,000 -268,879   -204,906         
          interest paid on convertible debentures
                     874,000 -1,566,000     -3,888,004   -2,025,450 -2,025,450  
          cash from financing activities
           -217,226,000 83,323,000 134,961,000 296,117,000 -18,467,000 27,645,000 1,011,000 -1,448,000 748,000 -13,865,000 -147,344,000 164,385,000             
          effect of exchange rates on cash and cash equivalents
                                   
          increase in cash
           -223,801,000 96,788,000 92,416,000   1,462,000 5,603,000   -13,742,000 -145,382,000 152,776,000             
          cash, beginning of period
        -63,084,000 -41,947,000 476,587,000 189,204,000 92,416,000 290,743,000 -35,338,000 1,462,000 134,447,000 -26,258,000 -14,309,000 201,804,000 7,394,000 152,776,000 74,022,000             
          cash, end of period
        -65,571,000 -63,084,000 434,640,000 -34,597,000 189,204,000 383,159,000 269,873,000 -35,338,000 135,909,000 -20,655,000 -26,258,000 187,495,000 -6,348,000 7,394,000 226,798,000             
          interest on lease liabilities
         47,000 16,000 -6,000 -2,000 33,000 -3,000 -4,000 44,000 -4,000 -3,000 57,000 -7,000 -2,000 72,000 79,265     55,501       
          net loss for the period:
             -34,620,000   -9,107,000    -130,000 48,317,000 -68,116,000             
          deferred income tax expense
          10,651,000   310,000       491,000 795,000 -269,000 153,873 3,798,952 -2,446,715 71,718 12,134 77,281 -182,429 -62,605 9,032 -24,610 71,275 180,622 
          realized foreign exchange gain on cash
          50,000 -832,000 -709,000 750,000                      
          mark-to-market loss on convertible debenture
           -3,153,000 -45,996,000 16,282,000 36,939,000 6,484,000 -3,804,000 41,497,000  18,431,000 6,007,000 -53,096,000 59,009,000             
          deferred income tax recovery
           2,844,000    294,000 -776,000                   
          loss on disposal of assets
                                   
          deposits
                       10,070 270 394,873 -61,784 -57,963 -3,821 -10,075 -10,075 -10,075 
          acquisition of marketable securities
                                   
          issuance of convertible debentures, net of issuance costs
                                   
          proceeds from exercise of options
           -4,897,000 1,774,000 4,982,000 -2,687,000 9,511,000 837,000                   
          accounts receivable
                                   
          gain on dilution of ownership interest in associate
             -221,000                      
          acquisition of equipment
             -1,057,000  -4,388,000 -30,000 1,000   -136,000 -35,000 -224,000 -13,893 -17,732 -99,052 -3,384 -75,582 -536,429 -2,420,089 -883,057 -776,386 -1,024,334 -588,900 -277,190 
          unrealized foreign exchange gain
                                   
          foreign exchange gain on cash
              480,000   475,000   681,000 -73,000 -178,000             
          cash used in operating activities
                                   
          cash used in investing activities
                                   
          decrease in cash
                                   
          foreign exchange loss on cash
                -39,000                   
          other non-cash items
                                   
          proceeds on disposal of assets
                                   
          proceeds from bought-deal financing, net of share issuance costs
                     -164,369,000 163,923,000             
          proceeds from common share issuance on asx, net of share issuance costs
                    -1,963,000               
          proceeds from exercise of options and warrants
                 306,000 -743,000 977,000 -13,055,000               
          gain on disposal of assets
                                   
          4
                                   
          gain on sale of assets
                                   
          proceeds on sale of assets
                                   
          mark-to-market
                                   
          unrealized foreign exchange (gain) loss
                                   
          balance at december 31, 2020
                                   
          shares issued on exercise of stock options
                                   
          shares issued on converted debentures
                                   
          shares issued for convertible debenture interest payments
                                   
          shares issued on bought-deal financing, net of share issue costs
                                   
          shares issued on asx, net of share issue costs
                                   
          shares issued for the rook i property development
                                   
          ownership changes relating to non-controlling interests
                                   
          net income for the period
                                   
          reclass accumulated other comprehensive income related to converted debentures
                                   
          other comprehensive income
                                   
          balance at june 30, 2021
                                   
          balance at december 31, 2021
                                   
          other comprehensive loss
                                   
          balance at june 30, 2022
                                   
          loss on sale of assets
                                   
          non-cash costs of debenture issuance
                                  
          shares issued for cash from private placements, net of share issuance costs
                       668,292         60,225,368   
          shares issued in connection with issuance convertible debentures
                                   
          issuance of convertible debentures
                       7,902,000         73,035,180   
          proceeds from exercise of option and warrants
                      2,289,000             
          cash flows (used in) from operating activities
                                   
          loss for the period
                       -21,514,946      -13,598,082   -24,630,604 -22,579,413  
          items not involving cash:
                                   
          unrealized foreign exchange loss on cash
                                   
          mark to market loss on convertible debentures
                       13,595,865 4,240,251 7,088,745    -9,677,302 14,520,153 -35,223,636 4,084,122 11,884,777 20,159,948 
          interest expense
                       3,451,917 3,145,749 3,026,026 2,970,900 3,006,432 2,991,375 8,933,328 3,148,350 2,845,576 5,504,501 2,989,365  
          loss on lease termination
                                   
          gain on disposal of equipment
                              750    
          changes in non-cash working capital items:
                                   
          prepaid expenses
                       227,903 25,530 109,320 206,196 -362,223 -323,364 -218,692 -345,016 -18,561 -230,394 -310,465 -99,014 
          cash flows from investing activities
                                   
          exploration and evaluation asset expenditures
                       -4,240,171 -3,317,623 -7,566,261 -10,164,704 -14,415,670 -16,022,858 -26,474,194 -10,212,226 -7,392,881  -16,647,155 -9,370,366 
          cash flows from investing activities - sum
                       -4,254,064 -3,335,355 -7,665,313   -16,559,287       
          cash flows (used in) from financing activities
                                   
          exercise of options and warrants
                                   
          shares issued in connection with issuance of convertible debentures
                               2,258,820   
          cash flows (used in) from financing activities - sum
                       9,138,397 38,597,489 -204,059 -155,772 -2,857,235 880,498 987,830 -2,295,507 1,977,335 138,123,010 2,423,275 175,332 
          change in cash
                                   
          effect of exchange rate fluctuations on cash held
                       -353,511 -1,077,150 1,906,209 297,646 -124,503 -936,423 1,464,412 901,788 1,384,008 -2,105,308 -420,696 -145,126 
          unrealized foreign exchange loss on cash and cash equivalents
                        1,077,150 -1,906,209 -297,646 124,503 936,423 -1,464,412 -901,788 -1,384,008 2,105,308 420,696 145,126 
          cash from exercise of options and warrants, net of share issuance costs
                        1,560,549 2,314 49,134   3,951,334 667,999 1,977,335 3,611,843 3,431,476 175,332 
          change in cash and cash equivalents
                        32,936,778 -10,081,760 -12,509,226 -19,405,456 -20,269,154 -33,695,179 -15,627,731 -8,672,681 151,740,904 15,633,074 22,589,848 
          cash and cash equivalents, beginning of period
                        52,117,581 125,059,189 164,943,850 164,943,850 31,090,313 31,090,313 31,090,313 
          cash and cash equivalents, end of period
                        31,859,628 43,942,030 -12,211,580 -19,529,959 103,853,612 132,713,083 -14,725,943 157,655,177 180,725,909 46,302,691 53,535,035 
          profit for the period
                         -10,385,906  -12,521,248 6,975,732  -24,409,653 30,026,892    
          accretion expense
                         45,026 50,666         
          payment of interest on lease liabilities
                         -45,026   -55,501       
          payment of principal on lease liabilities
                         -161,347   -112,667       
          amortization of deferred lease inducement
                             -30,072 -10,024 -10,024 -30,072 -20,048 -10,024 
          mark to market gain on convertible debentures
                          -6,950,474 2,218,823 -15,957,439       
          shares of subsidiary issued to non-controlling interests for cash, net of share issuance costs
                             924,500   1,017,249 1,017,249  
          cash flows (used in) from investing activities
                                   
          cash flows (used in) from investing activities - sum
                             -28,894,283 -11,095,283 -8,169,267 22,154,793 17,242,045 24,485,544 
          cash from exercise of options, net of share issuance costs
                            1,048,666       
          cash and cash equivalents consist of:
                                   
          cash
                            103,853,612 132,713,083 -10,776,741 153,705,975 155,725,909  4,691,916 
          cash equivalents
                               3,949,202 25,000,000  48,843,119 
          cash and cash equivalents
                            103,853,612 132,713,083 -14,725,943 157,655,177 180,725,909  53,535,035 
          supplemental disclosure with respect to cash flows
                                   
          loss on disposal of equipment
                             6,065      
          sale and maturity of short-term investments
                                47,455,100 34,478,100  
          redemption of short-term investments
                                  34,133,100 
          unrealized foreign exchange gain on cash and cash equivalents
                                   
          liability to issue shares
                                   
          acquisition of exploration and evaluation assets
                                -24,275,973   
          receipt of deferred lease inducement payment
                                   
          loss for the year
                                  -25,706,568