EX-99.3 4 d655546dex993.htm EX-99.3

Exhibit 99.3

Consolidated Financial Statements of

NEXGEN ENERGY LTD.

December 31, 2018 and 2017

Management’s Responsibility for Financial Reporting

The accompanying audited consolidated financial statements, related note disclosure, and other financial information contained in the management’s discussion and analysis of NexGen Energy Ltd. (the “Company”) were prepared by management in accordance with International Financial Reporting Standards as issued by the International Accounting Standards Board. Management acknowledges responsibility for the preparation and presentation of the audited annual consolidated financial statements, including responsibility for significant accounting judgments and estimates and the choice of accounting principles and methods that are appropriate to the Company’s circumstances.

The Company maintains adequate systems of internal accounting and administrative controls. Such systems are designed to provide reasonable assurance that transactions are properly authorized and recorded, the Company’s assets are appropriately accounted for and adequately safeguarded and that the financial information is relevant and reliable.

The Board of Directors is responsible for reviewing and approving the audited annual consolidated financial statements together with the other financial information of the Company and for ensuring that management fulfills its financial reporting responsibilities. The Board of Directors carries out this responsibility principally through its Audit Committee.

The Audit Committee is appointed by the Board of Directors and all of its members are non-management directors. The Audit Committee reviews the audited consolidated financial statements, management’s discussion and analysis, the external auditors’ report, examines the fees and expenses for audit services, and considers the engagement or reappointment of the external auditors. The Audit Committee reports its findings to the Board of Directors for its consideration when approving the consolidated financial statements for issuance to the shareholders. KPMG LLP, the external auditors, have full and free access to the Audit Committee.

/s/ Leigh Curyer |  |  |  | /s/ Bruce Sprague
Leigh Curyer |  |  |  | Bruce Sprague
President and Chief Executive Officer |  |  |  | Chief Financial Officer

Vancouver, Canada

March 1, 2019

|  | KPMG LLP Chartered Professional Accountants PO Box 10426 777 Dunsmuir Street Vancouver BC V7Y 1K3 Canada |  | Telephone |  | (604) 691-3000
|  | Fax |  | (604) 691-3031
|  | Internet |  | www.kpmg.ca

Report of Independent Registered Public Accounting Firm

To the Stockholders and Board of Directors

NexGen Energy Ltd.:

Opinion on the Consolidated Financial Statements

We have audited the accompanying consolidated statement of financial position of NexGen Energy Ltd. (the Company) as of December 31, 2018, the related consolidated statements of loss and comprehensive loss, changes in equity, and cash flows for the year ended December 31, 2018 and the related notes (collectively, the consolidated financial statements). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2018, and the results of its operations and its cash flows for the year ended December 31, 2018, in conformity with International Financial Reporting Standards.

Change in Accounting Principle

As discussed in Note 4 to the consolidated financial statements, the Company adopted IFRS 9 Financial Instruments effective January 1, 2019.

Basis for Opinion

These consolidated financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on these consolidated financial statements based on our audit. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud. Our audit included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audit also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. We believe that our audit provide a reasonable basis for our opinion.

//s// KPMG LLP

We have served as the Company’s auditor since 2016.

Vancouver, Canada

March 1, 2019

KPMG LLP is a Canadian limited liability partnership and a member firm of the KPMG network of independent member firms affiliated

with KPMG International Cooperative (“KPMG International”), a Swiss entity. KPMG Canada provides services to KPMG LLP.

|  | KPMG LLP Chartered Professional Accountants PO Box 10426 777 Dunsmuir Street Vancouver BC V7Y 1K3 Canada |  | Telephone |  | (604) 691-3000 |  |
|  | Fax |  | (604) 691-3031 |  |
|  | Internet |  | www.kpmg.ca |  |

INDEPENDENT AUDITORS’ REPORT

To the Shareholders of NexGen Energy Ltd.

We have audited the accompanying consolidated financial statements of NexGen Energy Ltd., which comprise the consolidated statements of financial position as at December 31, 2017, the consolidated statements of loss (profit) and comprehensive loss (profit), changes in equity and cash flows for the year then ended, and notes, comprising a summary of significant accounting policies and other explanatory information.

Management’s Responsibility for the Consolidated Financial Statements

Management is responsible for the preparation and fair presentation of these consolidated financial statements in accordance with International Financial Reporting Standards as issued by the International Accounting Standards Board, and for such internal control as management determines is necessary to enable the preparation of consolidated financial statements that are free from material misstatement, whether due to fraud or error.

Auditors’ Responsibility

Our responsibility is to express an opinion on these consolidated financial statements based on our audit. We conducted our audit in accordance with Canadian generally accepted auditing standards. Those standards require that we comply with ethical requirements and plan and perform the audit to obtain reasonable assurance about whether the consolidated financial statements are free from material misstatement.

An audit involves performing procedures to obtain audit evidence about the amounts and disclosures in the consolidated financial statements. The procedures selected depend on our judgment, including the assessment of the risks of material misstatement of the consolidated financial statements, whether due to fraud or error. In making those risk assessments, we consider internal control relevant to the entity’s preparation and fair presentation of the consolidated financial statements in order to design audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the entity’s internal control. An audit also includes evaluating the appropriateness of accounting policies used and the reasonableness of accounting estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements.

We believe that the audit evidence we have obtained in our audit is sufficient and appropriate to provide a basis for our audit opinion.

KPMG LLP is a Canadian limited liability partnership and a member firm of the KPMG network of independent member firms affiliated

with KPMG International Cooperative (“KPMG International”), a Swiss entity. KPMG Canada provides services to KPMG LLP.

NexGen Energy Ltd.

Page 2

Opinion

In our opinion, the consolidated financial statements present fairly, in all material respects, the consolidated financial position of NexGen Energy Ltd. as at December 31, 2017, and its consolidated financial performance and its consolidated cash flows for the year then ended in accordance with International Financial Reporting Standards as issued by the International Accounting Standards Board.

//s// KPMG LLP

Chartered Professional Accountants

March 2, 2018

Vancouver, Canada

NEXGEN ENERGY LTD.

CONSOLIDATED STATEMENTS OF FINANCIAL POSITION

(Expressed in Canadian Dollars)

As at

|  | Note |  |  | December 31, 2018 |  |  | December 31, 2017 |
ASSETS |  |  |  |  |  |  |  |  |  |  |  |
Current |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents |  |  |  |  |  | $ | 125,059,189 |  |  | $ | 164,943,850 |
Amounts receivable |  |  |  |  |  |  | 386,939 |  |  |  | 548,069 |
Prepaid expenses |  |  |  |  |  |  | 266,353 |  |  |  | 158,875 |
|  |  |  |  | 125,712,481 |  |  | 165,650,794 |
Non-current |  |  |  |  |  |  |  |  |  |  |  |
Deposits |  |  | 6 |  |  |  | 514,711 |  |  |  | 32,927 |
Exploration and evaluation assets |  |  | 5 |  |  |  | 194,128,594 |  |  |  | 152,412,555 |
Equipment |  |  | 7 |  |  |  | 6,511,779 |  |  |  | 4,983,074 |
|  |  |  |  |  |  | 201,155,084 |  |  |  | 157,428,556 |
TOTAL ASSETS |  |  |  |  |  | $ | 326,867,565 |  |  | $ | 323,079,350 |
LIABILITIES |  |  |  |  |  |  |  |  |  |  |  |
Current |  |  |  |  |  |  |  |  |  |  |  |
Accounts payable and accrued liabilities |  |  |  |  |  | $ | 5,966,921 |  |  | $ | 2,905,179 |
Flow-through share premium liability |  |  | 6 |  |  |  | 550,392 |  |  |  | 109,251 |
|  |  |  |  |  |  | 6,517,313 |  |  |  | 3,014,430 |
Non-current |  |  |  |  |  |  |  |  |  |  |  |
Deferred income tax liability |  |  |  |  |  |  | 199,366 |  |  |  | 280,740 |
Deferred lease inducement |  |  |  |  |  |  | 33,412 |  |  |  | 73,509 |
Convertible debentures |  |  | 8 |  |  |  | 138,190,884 |  |  |  | 171,369,966 |
|  |  |  |  |  |  | 138,423,662 |  |  |  | 171,724,215 |
TOTAL LIABILITIES |  |  |  |  |  |  | 144,940,975 |  |  |  | 174,738,645 |
EQUITY |  |  |  |  |  |  |  |  |  |  |  |
Share capital |  |  | 9 |  |  |  | 208,711,135 |  |  |  | 196,311,184 |
Reserves |  |  | 9 |  |  |  | 41,629,049 |  |  |  | 28,050,059 |
Accumulated other comprehensive income |  |  | 4 |  |  |  | 97,675 |  |  |  | — |
Accumulated deficit |  |  |  |  |  |  | (85,143,089 | ) |  |  | (88,038,390 | )
|  |  |  |  |  |  | 165,294,770 |  |  |  | 136,322,853 |
Non-controlling interests |  |  |  |  |  |  | 16,631,820 |  |  |  | 12,017,852 |
TOTAL EQUITY |  |  |  |  |  |  | 181,926,590 |  |  |  | 148,340,705 |
TOTAL LIABILITIES AND EQUITY |  |  |  |  |  | $ | 326,867,565 |  |  | $ | 323,079,350 |

Nature of operations (Note 2)

Commitments (Note 6)

The accompanying notes are an integral part of the consolidated financial statements.

These consolidated financial statements were authorized for issue by the Board of Directors on March 1, 2019.

2

NEXGEN ENERGY LTD.
CONSOLIDATED STATEMENTS OF LOSS (PROFIT) AND OTHER COMPREHENSIVE LOSS (PROFIT) (Expressed in Canadian Dollars) For the years ended

|  | Note |  | December 31, 2018 |  |  | December 31, 2017 |
Salaries, benefits and directors’ fees |  | 10 |  | $ | 5,897,494 |  |  | $ | 3,993,277 |
Office and administrative |  |  |  |  | 1,855,177 |  |  |  | 1,502,988 |
Professional fees |  |  |  |  | 2,003,931 |  |  |  | 1,725,921 |
Travel |  |  |  |  | 920,834 |  |  |  | 639,559 |
Depreciation |  | 7 |  |  | 1,533,634 |  |  |  | 758,063 |
Share-based payments |  | 9, 10 |  |  | 13,736,299 |  |  |  | 9,183,667 |
Impairment of exploration and evaluation assets |  | 5 |  |  | — |  |  |  | 87,749 |
Finance income |  |  |  |  | (2,486,565 | ) |  |  | (1,305,784 | )
Mark to market loss (gain) on convertible debentures |  | 8 |  |  | (32,578,261 | ) |  |  | 27,522,985 |
Convertible debenture issuance costs |  |  |  |  | — |  |  |  | 2,811,146 |
Interest expense |  | 8 |  |  | 11,954,146 |  |  |  | 8,693,847 |
Foreign exchange loss (gain) |  |  |  |  | (4,025,062 | ) |  |  | 1,225,599 |
Loss on disposal of equipment |  |  |  |  | 6,065 |  |  |  | 24,905 |
Loss (profit) from operations |  |  |  | $ | (1,182,308 | ) |  | $ | 56,863,922 |
Deferred income tax recovery |  |  |  |  | (309,298 | ) |  |  | (33,312 | )
Loss (profit) for the year |  |  |  | $ | (1,491,606 | ) |  | $ | 56,830,610 |
Other Comprehensive Income |  |  |  |  |  |  |  |  |  |
Change in fair value of convertible debentures attributable to the change in credit risk |  |  |  |  | (600,821 | ) |  |  | — |
Total comprehensive loss (profit) for the year |  |  |  | $ | (2,092,427 | ) |  | $ | 56,830,610 |

The accompanying notes are an integral part of the consolidated financial statements.

3

CONSOLIDATED STATEMENTS OF LOSS (PROFIT) AND OTHER COMPREHENSIVE LOSS (PROFIT) (continued)

(Expressed in Canadian Dollars)

For the years ended

|  | Note |  | December 31, 2018 |  |  | December 31, 2017 |
Loss (profit) attributable to: |  |  |  |  |  |  |  |  |  |
Shareholders of NexGen Energy Ltd. |  |  |  | $ | (2,269,689 | ) |  | $ | 56,038,329 |
Non-controlling interests in IsoEnergy Ltd. |  |  |  |  | 778,083 |  |  |  | 792,281 |
Loss (profit) for the year |  |  |  | $ | (1,491,606 | ) |  | $ | 56,830,610 |
Total comprehensive loss (profit) attributable to: |  |  |  |  |  |  |  |  |  |
Shareholders of NexGen Energy Ltd. |  |  |  | $ | (2,870,510 | ) |  | $ | 56,038,329 |
Non-controlling interests in IsoEnergy Ltd. |  |  |  |  | 778,083 |  |  |  | 792,281 |
Total comprehensive loss (profit) for the year |  |  |  | $ | (2,092,427 | ) |  | $ | 56,830,610 |
Loss (profit) per common share attributable to the Company’s common shareholders |  |  |  |  |  |  |  |  |  |
Basic loss (profit) per common share |  | 17 |  | $ | (0.01 | ) |  | $ | 0.17 |
Diluted loss (profit) per common share |  | 17 |  | $ | 0.06 |  |  | $ | 0.17 |
Weighted average number of common shares outstanding |  |  |  |  |  |  |  |  |  |
Basic |  |  |  |  | 345,868,725 |  |  |  | 321,921,938 |
Diluted |  |  |  |  | 413,384,053 |  |  |  | 321,921,938 |

The accompanying notes are an integral part of the consolidated financial statements.

4

NEXGEN ENERGY LTD. CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY
(Expressed in Canadian Dollars)

|  | Note |  | Number of Common Shares |  |  | Share Capital |  |  | Reserves |  |  | Accumulated other comprehensive Income |  |  | Accumulated Deficit |  |  | Non-controlling Interests |  |  | Total |
Balance as at December 31, 2016 |  |  |  |  | 306,190,287 |  |  | $ | 125,735,515 |  |  | $ | 17,005,665 |  |  | $ | — |  |  | $ | (32,743,616 | ) |  | $ | 9,008,702 |  |  | $ | 119,006,266 |
Exercise of warrants |  | 9 |  |  | 5,714,286 |  |  |  | 2,857,143 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 2,857,143 |
Exercise of options |  | 9 |  |  | 1,424,445 |  |  |  | 1,981,132 |  |  |  | (853,100 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 1,128,032 |
Share issuance costs |  | 5, 9 |  |  | — |  |  |  | (2,519,632 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (2,519,632 | )
Issue of shares for cash from private placement |  | 9 |  |  | 24,146,424 |  |  |  | 62,745,000 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 62,745,000 |
Issue of shares on convertible debenture financing |  | 9 |  |  | 869,271 |  |  |  | 2,258,820 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 2,258,820 |
Issue of shares on convertible debenture interest payment |  | 9 |  |  | 883,533 |  |  |  | 2,919,876 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 2,919,876 |
Issue of shares for exploration and evaluation assets |  | 5 |  |  | 111,110 |  |  |  | 333,330 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 333,330 |
Share-based payments |  | 9 |  |  | — |  |  |  | — |  |  |  | 12,493,458 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 12,493,458 |
Reserve re-allocation for expired warrants |  | 9 |  |  |  |  |  |  |  |  |  |  | (595,964 | ) |  |  | — |  |  |  | 595,964 |  |  |  |  |  |  |  | — |
Issue of shares of subsidiary to non-controlling interests |  |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 147,591 |  |  |  | 3,801,431 |  |  |  | 3,949,022 |
Loss for the period |  |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (56,038,329 | ) |  |  | (792,281 | ) |  |  | (56,830,610 | )
Balance as at December 31, 2017 |  |  |  |  | 339,339,356 |  |  | $ | 196,311,184 |  |  | $ | 28,050,059 |  |  | $ | — |  |  | $ | (88,038,390 | ) |  | $ | 12,017,852 |  |  | $ | 148,340,705 |
Balance as at December 31, 2017 |  |  |  |  | 339,339,356 |  |  | $ | 196,311,184 |  |  | $ | 28,050,059 |  |  | $ | — |  |  | $ | (88,038,390 | ) |  | $ | 12,017,852 |  |  | $ | 148,340,705 |
Exercise of options |  | 9 |  |  | 10,458,334 |  |  |  | 8,351,206 |  |  |  | (3,276,872 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 5,074,334 |
Issue of shares on convertible debenture interest payment |  | 9 |  |  | 1,439,372 |  |  |  | 4,048,745 |  |  |  |  |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — 4,048,745 |
Share-based payments |  | 9 |  |  | — |  |  |  | — |  |  |  | 16,855,862 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 16,855,862 |
Issue of shares of subsidiary to non-controlling interests |  | 5(c), 6 |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 122,466 |  |  |  | — 5,392,051 |  |  |  | 5,514,517 |
Profit (loss) for the period |  |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 2,269,689 |  |  |  | (778,083 | ) |  |  | 1,491,606 |
Other comprehensive income |  | 4 |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 600,821 |  |  |  | — |  |  |  | — |  |  |  | 600,821 |
Impact of adopting IFRS 9 |  | 4 |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (503,146 | ) |  |  | 503,146 |  |  |  | — |  |  |  | — |
Balance as at December 31, 2018 |  |  |  |  | 351,237,062 |  |  | $ | 208,711,135 |  |  | $ | 41,629,049 |  |  | $ | 97,675 |  |  | $ | (85,143,089 | ) |  | $ | 16,631,820 |  |  | $ | 181,926,590 |

The accompanying notes are an integral part of the consolidated financial statements

5

NEXGEN ENERGY LTD.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Expressed in Canadian Dollars)

For the years ended

|  | December 31, 2018 |  |  | December 31, 2017 |
Cash flows (used in) from operating activities |  |  |  |  |  |  |  |
Profit (loss) for the year |  | $ | 1,491,606 |  |  | $ | (56,830,610 | )
Items not involving cash: |  |  |  |  |  |  |  |
Depreciation |  |  | 1,533,634 |  |  |  | 758,063 |
Share-based payments |  |  | 13,736,299 |  |  |  | 9,183,667 |
Amortization of deferred lease inducement |  |  | (40,097 | ) |  |  | (40,096 | )
Impairment of exploration and evaluation assets |  |  | — |  |  |  | 87,749 |
Unrealized foreign exchange gain on cash and cash equivalents |  |  | (3,905,624 | ) |  |  | (258,399 | )
Deferred income tax recovery |  |  | (309,298 | ) |  |  | (33,312 | )
Mark to market loss (gain) on convertible debentures |  |  | (32,578,261 | ) |  |  | 27,522,985 |
Interest expense |  |  | 11,954,146 |  |  |  | 8,693,847 |
Loss on disposal of equipment |  |  | 6,065 |  |  |  | 24,905 |
Changes in non-cash working capital items: |  |  |  |  |  |  |  |
Amounts receivable |  |  | 161,130 |  |  |  | 259,378 |
Prepaid expenses |  |  | (107,478 | ) |  |  | (86,300 | )
Deposits |  |  | (481,784 | ) |  |  | (10,075 | )
Accounts payable and accrued liabilities |  |  | 87,594 |  |  |  | (416,299 | )
|  |  | (8,452,068 | ) |  |  | (11,144,497 | )
Cash flows (used in) from investing activities |  |  |  |  |  |  |  |
Exploration and evaluation asset expenditures |  |  | (34,813,614 | ) |  |  | (35,960,842 | )
Acquisition of equipment |  |  | (2,954,028 | ) |  |  | (1,859,729 | )
Sale and maturity of short-term investments |  |  | — |  |  |  | 47,455,100 |
|  |  | (37,767,642 | ) |  |  | 9,634,529 |
Cash flows (used in) from financing activities |  |  |  |  |  |  |  |
Cash from exercise of options and warrants, net of share issuance costs |  |  | 5,074,334 |  |  |  | 3,985,175 |
Shares issued for cash from private placements, net of share issuance costs |  |  | — |  |  |  | 60,225,368 |
Shares of subsidiary issued to non-controlling interests for cash, net of share issuance costs |  |  | 5,273,624 |  |  |  | 1,017,249 |
Interest paid on convertible debentures |  |  | (7,918,533 | ) |  |  | (5,416,686 | )
Shares issued in connection with issuance of convertible debentures |  |  | — |  |  |  | 2,258,820 |
Issuance of convertible debentures |  |  | — |  |  |  | 73,035,180 |
|  |  | 2,429,425 |  |  |  | 135,105,106 |
Change in cash and cash equivalents |  |  | (43,790,285 | ) |  |  | 133,595,138 |
Cash and cash equivalents, beginning of year |  |  | 164,943,850 |  |  |  | 31,090,313 |
Effect of exchange rate fluctuations on cash held |  |  | 3,905,624 |  |  |  | 258,399 |
Cash and cash equivalents, end of year |  |  | 125,059,189 |  |  |  | 164,943,850 |
Cash and cash equivalents consist of: |  |  |  |  |  |  |  |
Cash |  | $ | 125,059,189 |  |  | $ | 153,329,808 |
Cash equivalents |  |  | — |  |  |  | 11,614,042 |
Cash and cash equivalents |  | $ | 125,059,189 |  |  | $ | 164,943,850 |

Supplemental disclosure with respect to cash flows (Note 16)

The accompanying notes are an integral part of the consolidated financial statements.

6

NEXGEN ENERGY LTD.

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

(Expressed in Canadian Dollars)

FOR THE YEARS ENDED DECEMBER 31, 2018 & 2017

1. | REPORTING ENTITY

NexGen Energy Ltd. (“NexGen” or the “Company”) is an exploration stage entity engaged in the acquisition, exploration and evaluation of uranium properties in Canada. The Company was incorporated pursuant to the provisions of the British Columbia Business Corporations Act on March 8, 2011. The Company’s registered records office is located on the 25th Floor, 700 West Georgia Street, Vancouver, B.C., V7Y 1B3.

On April 19, 2013, the Company (as it was then called, Clermont Capital Inc. (“Clermont”)) completed its qualifying transaction, which was effected pursuant to an amalgamation agreement dated December 31, 2012 (the “Amalgamation Agreement”) amongst Clermont, 0957633 B.C. Ltd., a wholly owned subsidiary of Clermont, and NexGen Energy Ltd. (“Old NexGen”). Pursuant to the Amalgamation Agreement, the shareholders of Old NexGen were issued one common share of Clermont (on a post-share consolidation basis) for every one Old NexGen common share held immediately prior to the completion of the amalgamation. In connection with the Qualifying Transaction, Clermont also completed a consolidation of its common shares on a 2.35:1 basis and changed its name to “NexGen Energy Ltd.”. The Company’s acquisition of Old NexGen was accounted for as a reverse takeover.

The Company commenced trading on the TSX Venture Exchange (“TSX-V”) as a Tier 2 Issuer under the symbol “NXE” on April 23, 2013. On August 7, 2015, the Company became a Tier 1 Issuer. On July 15, 2016, NexGen graduated and commenced trading on the Toronto Stock Exchange (“TSX”) under its existing symbol. The Company’s common shares ceased trading on the OTCQX Best Market under the symbol “NXGEF” upon the commencement of trading on the NYSE American LLC (“NYSE American”) under the symbol “NXE” on May 17, 2017.

In February 2016, the Company incorporated four wholly owned subsidiaries: NXE Energy Royalty Ltd., NXE Energy SW1 Ltd., NXE Energy SW3 Ltd., and IsoEnergy Ltd. (collectively, the “Subsidiaries”). The Subsidiaries were incorporated to hold certain exploration assets of the Company. In the three months ended June 30, 2016, certain exploration and evaluation assets were transferred to each of IsoEnergy Ltd. (“IsoEnergy”), NXE Energy SW1 Ltd. and NXE Energy SW3 Ltd. (Note 5). Subsequent to the transfer, IsoEnergy shares were issued to third parties pursuant to external financings and it listed its common shares on the TSX-V, with NexGen retaining 53.35% of IsoEnergy’s outstanding common shares as at December 31, 2018 (2017 – 63.90%).

2. | NATURE OF OPERATIONS

As an exploration stage company, the Company does not have revenues and historically has recurring operating losses. As at December 31, 2018, the Company had an accumulated deficit of $85,143,089 and working capital of $119,195,168. The Company will be required to obtain additional funding in order to continue with the exploration and development of its mineral properties and to repay its convertible debentures (Note 8), if required.

The business of exploring for minerals involves a high degree of risk. NexGen is an exploration company and is subject to risks and challenges similar to companies in a comparable stage. These risks include, but are not limited to, the challenges of securing adequate capital; development and operational risks inherent in the mining industry; changes in government policies and regulations; the ability to obtain the necessary environmental permits or, alternatively NexGen’s ability to dispose of its exploration and evaluation assets on an advantageous basis; as well as global economic and uranium price volatility; all of which are uncertain.

The underlying value of the exploration and evaluation assets is dependent upon the existence and economic recovery of mineral reserves and is subject to, but not limited to, the risks and challenges identified above. Changes in future conditions could require material write-downs of the carrying value of exploration and evaluation assets.

3. | BASIS OF PRESENTATION

Statement of Compliance

These consolidated financial statements as at and for the year ended December 31, 2018, including comparatives, have been prepared in accordance with International Financial Reporting Standards (“IFRS”) as issued by the International Accounting Standards Board (“IASB”) and interpretations of the International Financial Reporting Interpretations Committee (“IFRIC”). These consolidated financial statements were authorized for issue by the Board of Directors on March 1, 2019.

Basis of Presentation

These consolidated financial statements have been prepared on a historical cost basis, except for certain financial instruments which have been measured at fair value, including the convertible debentures issued by the Company (Note 8). In addition, these consolidated financial statements have been prepared using the accrual basis of accounting, except for cash flow information. All monetary references expressed in these notes are references to Canadian dollar amounts (“$”), except as otherwise noted. These financial statements are presented in Canadian dollars, which is the functional currency of the Company and its subsidiaries.

7

NEXGEN ENERGY LTD.

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

(Expressed in Canadian Dollars)

FOR THE YEARS ENDED DECEMBER 31, 2018 & 2017

3. | BASIS OF PRESENTATION (continued)

Critical accounting judgments, estimates and assumptions

The preparation of the consolidated financial statements requires management to make judgments, estimates and assumptions that affect the reported amounts of assets, liabilities and contingent liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Estimates and assumptions are continuously evaluated and are based on management’s experience and other factors, including expectations of future events that are believed to be reasonable in the circumstances. Uncertainty about these judgments, estimates and assumptions could result in a material adjustment to the carrying amount of the asset or liability affected in future periods.

Where the fair value of financial assets and financial liabilities recorded in the financial statements cannot be derived from active markets, their fair value is determined using valuation models. The inputs to these models are taken from observable markets where possible, but where this is not feasible, a degree of judgment is required in establishing fair values. The judgments include considerations of inputs such as liquidity risk, credit risk and volatility. Changes in assumptions about these factors could affect the reported fair value of financial instruments.

The information about significant areas of estimation uncertainty considered by management in preparing the financial statements is as follows:

(i) Impairment

At the end of each financial reporting period the carrying amounts of the Company’s non-financial assets are reviewed to determine whether there is any indication that those assets have suffered an impairment loss or reversal of previous impairment. Where such an indication exists, the recoverable amount of the asset is estimated in order to determine the extent of the impairment, if any. With respect to exploration and evaluation assets, the Company is required to make estimates and judgments about the future events and circumstances regarding whether the carrying amount of intangible exploration assets exceeds its recoverable amount. Recoverability is dependent on various factors, including the discovery of economically recoverable reserves, the ability of the Company to obtain the necessary financing to complete the development and upon future profitable production or proceeds from the disposition of the exploration and evaluation assets themselves. Additionally, there are numerous geological, economic, environmental and regulatory factors and uncertainties that could impact management’s assessment as to the overall viability of its properties or to the ability to generate future cash flows necessary to cover or exceed the carrying value of the Company’s exploration and evaluation assets properties.

(ii) Share-based payments

The Company uses the Black-Scholes option pricing model to determine the fair value of options and warrants in order to calculate share-based payments expense and the fair value of broker warrants. The Black-Scholes model involves six key inputs to determine fair value of an option: risk-free interest rate, exercise price, market price at date of issue, expected dividend yield, expected life, and expected volatility. Certain of the inputs are estimates that involve considerable judgment and are or could be affected by significant factors that are out of the Company’s control. The Company is also required to estimate the future forfeiture rate of options based on historical information in its calculation of share-based payments expense. Refer to Note 9 for further details.

(iii) Convertible debentures

The Company uses a model based on a system of two coupled Black-Scholes equations to determine the fair value of the convertible debentures. This model involves five key inputs to determine the fair value of the convertible debentures: risk-free interest rate, credit spread, market price at valuation date, expected dividend yield and historical volatility. Certain of the inputs are estimates that involve considerable judgment and are or could be affected by significant factors that are out of the Company’s control. Refer to Note 8 for further details.

The information about significant areas of judgment considered by management in preparing the financial statements are as follows:

(i) Deferred tax assets

Deferred tax assets are recognized in respect of tax losses and other temporary differences to the extent it is probable that taxable income will be available against which the losses can be utilized. Judgment is required to determine the amount of deferred tax assets that can be recognized based upon the likely timing and level of future taxable income together with future tax planning strategies. Refer to Note 14 for further details.

8

NEXGEN ENERGY LTD.

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

(Expressed in Canadian Dollars)

FOR THE YEARS ENDED DECEMBER 31, 2018 & 2017

3. | BASIS OF PRESENTATION (continued)

(ii) Going concern

The Company’s management has made an assessment of the Company’s ability to continue as a going concern and is satisfied that the Company has the resources to continue its business for the foreseeable future. Furthermore, management is not aware of any material uncertainties that may cast significant doubt upon the Company’s ability to continue as a going concern. Therefore, the financial statements continue to be prepared on a going concern basis.

(iii) Exploration and evaluation assets

The application of the Company’s accounting policy for exploration and evaluation expenditures requires judgment to determine whether future economic benefits are likely, from either future exploitation or sale, or whether activities have reached a stage which permits a reasonable assessment of the existence of reserves. The determination of reserves and resources is itself an estimation process that requires varying degrees of uncertainty depending on how the resources are classified.

4. | SIGNIFICANT ACCOUNTING POLICIES

The significant accounting policies set out below have been applied consistently to all years presented in these financial statements:

| (a) | Functional and Presentation Currency

These financial statements are presented in Canadian dollars, which is the functional currency of the Company and its subsidiaries.

Translation of transactions and balances

Foreign currency transactions are translated into the functional currency using the exchange rates prevailing at the dates of the transactions or valuation where items are re-measured. Monetary assets and liabilities denominated in foreign currencies are translated at the functional currency spot rate of exchange in effect at the reporting date. Non-monetary items that are measured in terms of historical cost in a foreign currency are translated using the exchange rate as at the date of the initial transaction. Translation gains or losses are recognized in profit or loss.

| (b) | Consolidation

These consolidated financial statements include the accounts of the Company and its subsidiaries: NXE Energy Royalty Ltd., NXE Energy SW1 Ltd., NXE Energy SW3 Ltd. and IsoEnergy. Shares of IsoEnergy were issued to third parties as part of financings since its inception, thereby resulting in the recognition of non-controlling interests. The financial results of the subsidiaries are included in these consolidated financial statements from the date of incorporation. Intercompany balances and transactions are eliminated on consolidation. The following table sets forth the Company’s ownership percentage in each of its subsidiaries as of December 31, 2018:

Name of Subsidiary |  | % Ownership as of December 31, 2018 |
NXE Energy Royalty Ltd. |  |  | 100 | %
NXE Energy SW1 Ltd. |  |  | 100 | %
NXE Energy SW3 Ltd. |  |  | 100 | %
IsoEnergy Ltd. |  |  | 53.35 | %

| (c) | Cash and cash equivalents

Cash and cash equivalents include deposits held with banks that are available on demand and guaranteed investment certificates with original maturities of three months or less or that are readily convertible into cash.

| (d) | Exploration and evaluation assets

Once the legal rights to explore a property have been obtained, exploration and evaluation costs are capitalized as exploration and evaluation assets on an area of interest basis pending determination of the technical feasibility and the commercial viability of the project. Capitalized costs include costs directly related to exploration and evaluation activities in the area of interest. When a claim is relinquished or a project is abandoned, the related costs are recognized in profit or loss immediately.

9

NEXGEN ENERGY LTD.

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

(Expressed in Canadian Dollars)

FOR THE YEARS ENDED DECEMBER 31, 2018 & 2017

4. | SIGNIFICANT ACCOUNTING POLICIES (continued)

Proceeds received from the sale of any interest in a property will be credited against the carrying value of the property, with any excess included in operations for the period. If a property is abandoned, the acquisition and deferred exploration costs will be written off to operations.

Although the Company has taken steps to verify title to exploration and evaluation assets in which it has an interest, in accordance with industry standards for the current stage of exploration of such properties, these procedures do not guarantee the Company’s title. A property may be subject to unregistered prior agreements or inadvertent non-compliance with regulatory requirements.

Management regularly assesses exploration and evaluation assets for events or circumstances that may indicate possible impairment.

Once the technical feasibility and commercial viability of the extraction of mineral resources in an area of interest are demonstrable, exploration and evaluation assets attributable to that area of interest are first tested for impairment and then reclassified to mining assets and development assets within property, plant and equipment.

| (e) | Equipment

(i) Recognition and measurement

Items of equipment are stated at cost less accumulated depreciation and impairment losses. Cost includes expenditures that are directly attributable to the acquisition of the asset.

(ii) Subsequent costs

The cost of replacing a part of an item in the carrying amount of equipment is recognized when that cost is incurred, if it is probable that the future economic benefits embodied within the item will flow to the Company and the cost of the item can be measured reliably.

(iii) Depreciation

The carrying amounts of equipment (including initial and subsequent capital expenditures) are amortized to their estimated residual value over the estimated useful lives of the specific assets concerned. Depreciation is calculated over the estimated useful lives of each significant component as follows:

|  | - |  | Computing equipment |  | 55% declining balance basis
|  | - |  | Software |  | 55% declining balance basis
|  | - |  | Field equipment |  | 20% declining balance basis
|  | - |  | Leasehold improvements |  | Lease term
|  | - |  | Road |  | 5-year straight-line basis

Depreciation methods, useful lives, and residual values are reviewed at least annually and adjusted if appropriate.

(iv) Disposal

Gains and losses on disposal of an item of equipment are determined by comparing the proceeds from disposal with the carrying amount of the item of equipment and are recognized in profit or loss.

| (f) | Impairment

An impairment loss is recognized when the carrying amount of an asset, or its cash generating unit (“CGU”), exceeds its recoverable amount. A CGU is the smallest identifiable group of assets that generates cash inflows that are largely independent of the cash inflows from other assets or groups of assets. Impairment losses are recognized in profit and loss for the period. Impairment losses recognized in respect of CGUs are allocated first to reduce the carrying amount of any goodwill allocated to CGUs and then to reduce the carrying amount of the other assets in the unit on a pro-rata basis.

The recoverable amount of assets is the greater of an asset’s fair value less cost to sell and value in use. In assessing value in use, the estimated future cash flows are discounted to their present value using a pre-tax discount rate that reflects the current market assessments of the time value of money and the risks specific to the asset. For an asset that does not generate cash inflows largely independent of those from other assets, the recoverable amount is determined for the cash-generating unit to which the asset belongs.

10

NEXGEN ENERGY LTD.

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

(Expressed in Canadian Dollars)

FOR THE YEARS ENDED DECEMBER 31, 2018 & 2017

4. | SIGNIFICANT ACCOUNTING POLICIES (continued)

An impairment loss is only reversed if there is an indication that the impairment loss may no longer exist and there has been a change in the estimates used to determine the recoverable amount, however, not to an amount higher than the carrying amount that would have been determined had no impairment loss been recognized in previous years.

Assets that have an indefinite useful life are not subject to depreciation and are tested annually for impairment.

| (g) | Decommissioning and Restoration Provisions

Decommissioning and restoration provisions are recorded when a present legal or constructive obligation exists as a result of past events where it is probable that an outflow of resources embodying economic benefits will be required to settle the obligation, and a reliable estimate of the amount of the obligation can be made.

The amount recognized as a provision is the best estimate of the consideration required to settle the present obligation at the reporting date, taking into account the risks and uncertainties surrounding the obligation and discount rates. Where a provision is measured using the cash flows estimated to settle the present obligation, its carrying amount is the present value of those cash flows discounted at the market discount rate.

Over time the carrying value of the liability is increased for the changes in the present value based on the current market discount rates and liability risks. When some or all of the economic benefits required to settle a provision are expected to be recovered from a third party, the receivable is recognized as an asset if it is virtually certain that reimbursement will be received and the amount receivable can be measured reliably.

Changes in reclamation estimates are accounted for prospectively as a change in the corresponding capitalized cost.

The Company did not have any decommissioning and restoration provisions for the years presented.

| (h) | Share Capital

Common shares are classified as equity. Incremental costs directly attributable to the issue of common shares are recognized as a deduction from equity. Common shares issued for consideration other than cash, are valued based on their market value at the date the shares are issued.

The Company has adopted a residual value method with respect to the measurement of shares and warrants issued as private placement units. The residual value method first allocates value to the more easily measurable component based on fair value and then the residual value, if any, to the less easily measurable component. The Company considers the fair value of common shares issued in the private placements to be the more easily measurable component and the common shares are valued at their fair value, as determined by the closing market price on the announcement date. The balance, if any, is allocated to the attached warrants. Any fair value attributed to the warrants is recorded as reserves.

| (i) | Share-based payments

The Company’s stock option plan allows Company employees, directors, officers and consultants to acquire shares of the Company. The fair value of options granted is recognized as share-based payments expense with a corresponding increase in equity reserves. The fair value of the options granted is measured using the Black-Scholes option pricing model, taking into account the terms and conditions upon which the options were granted. Fair value is measured at grant date, and each tranche is recognized using the graded vesting method over the period during which the options vest.

At each financial reporting date, the amount recognized as an expense is adjusted to reflect the actual number of stock options that are expected to vest. In situations where equity instruments are issued to non-employees and some or all of the goods or services received by the entity as consideration cannot be specifically identified, they are measured at the fair value of the share-based payment, otherwise share-based payment awards to non-employees are measured at the fair value of goods or services received. An individual is classified as an employee when the individual is an employee for legal or tax purposes (direct employee) or provides services similar to those performed by a direct employee.

11

NEXGEN ENERGY LTD.

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

(Expressed in Canadian Dollars)

FOR THE YEARS ENDED DECEMBER 31, 2018 & 2017

4. | SIGNIFICANT ACCOUNTING POLICIES (continued)

| (j) | Flow-through shares

Resource expenditure deductions for income tax purposes related to exploration activities funded by flow-through share arrangements are renounced to investors under Canadian income tax legislation. On issuance, the Company separates the flow-through share into i) a flow-through share premium, equal to the estimated premium, if any, investors pay for the flow-through feature, which is recognized as a liability and ii) share capital. Upon qualifying expenditures being incurred, the Company recognizes a deferred tax liability for the taxable temporary difference that arises from the difference between the carrying amount of eligible expenditures capitalized as exploration and evaluation assets and its tax base and the premium liability is reduced and recognized as a reduction of deferred tax expense. Proceeds received from the issuance of flow-through shares must be expended on Canadian resource property exploration within a period of two years. Failure to expend such funds as required under the Canadian income tax legislation will result in a Part XII.6 tax to the Company on flow-through proceeds renounced under the “Look-back” Rule. When applicable, this tax is accrued as a financial expense until paid.

| (k) | Loss (profit) per Share

Basic loss (profit) per share is calculated by dividing the loss (profit) attributable to the Company’s common shareholders for the year by the weighted average number of common shares outstanding during the year.

The Company uses the treasury stock method to compute the dilutive effect of options, warrants and other similar instruments. Under this method, the weighted average number of shares outstanding used in the calculation of diluted loss per share assumes that the deemed proceeds received from the exercise of stock options, share purchase warrants and their equivalents would be used to repurchase common shares of the Company at the average market price during the period.

| (l) | Income taxes

Income tax expense comprises current and deferred tax. Current tax and deferred tax are recognized in profit or loss except adopted to the extent that it relates to items recognized directly in equity or in other comprehensive income.

Current tax is the expected tax payable or receivable on the taxable income or loss for the year, using tax rates enacted at the reporting date, and any adjustment to tax payable in respect of previous years.

Deferred tax is recognized in respect of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for taxation purposes. Deferred tax is not recognized for the following temporary differences: the initial recognition of assets or liabilities in a transaction that is not a business combination and that affects neither accounting nor taxable profit or loss, and differences relating to investments in subsidiaries and jointly controlled entities to the extent that it is probable that they will not reverse in the foreseeable future. In addition, deferred tax is not recognized for taxable temporary differences arising on the initial recognition of goodwill. Deferred tax is measured at the tax rates that are expected to be applied to temporary differences when they reverse, based on the laws that have been enacted or substantively enacted by the reporting date.

Deferred tax assets and liabilities are offset if there is a legally enforceable right to offset current tax liabilities and assets, and they relate to income taxes levied by the same tax authority on the same taxable entity, or on different tax entities, but they intend to settle current tax liabilities and assets on a net basis or their tax assets and liabilities will be realized simultaneously.

A deferred tax asset is recognized for unused tax losses, tax credits and deductible temporary differences, to the extent that it is probable that future taxable profits will be available against which they can be utilized. Future taxable profits are determined based on the reversal of relevant taxable temporary differences. If the amount of taxable temporary differences is insufficient to recognize a deferred tax asset in full, then future taxable profits, adjusted for reversals of existing temporary differences, are considered, based on the business plan for the Company. Deferred tax assets are reviewed at each reporting date and are reduced to the extent that it is no longer probable that the related tax benefit will be realized.

12

NEXGEN ENERGY LTD.

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

(Expressed in Canadian Dollars)

FOR THE YEARS ENDED DECEMBER 31, 2018 & 2017

4. | SIGNIFICANT ACCOUNTING POLICIES (continued)

| (m) | New standards adopted:

The Company reviewed certain new standards that were issued by IASB that are mandatory for accounting periods beginning on or after January 1, 2018. These standards are listed below and had the following impact on the Company.

IFRS 2 – Share-based payments is an amended standard to clarify how to account for certain types of share-based payment transactions. The amendments provide for the effects of vesting and non-vesting conditions on the measurement of cash-settled share-based payments, share-based payment transactions with a net settlement feature for withholding tax obligations, and a modification to the terms and conditions of a share-based payment that changes the classification of the transaction from cash-settled to equity-settled. IFRS 2 – Share-based payments standard had no impact on the Company.

The Company has adopted all of the requirements of IFRS 9 Financial Instruments (“IFRS 9”) as of January 1, 2018. IFRS 9 replaces IAS 39 Financial Instruments: Recognition and Measurement (“IAS 39”). IFRS 9 utilizes a revised model for the classification and measurement of financial instruments and a single, forward-looking “expected loss” impairment model. Most of the requirements in IAS 39 for classification and measurement of financial liabilities were carried forward in IFRS 9, with the exception that for financial liabilities designated at fair value through profit or loss, the change in fair value that is attributable to changes in credit risk of that liability is presented in other comprehensive income instead of in net (loss) income as previously applied.

The following is the Company’s new accounting policy for financial instruments under IFRS 9.

| (i) | Classification

The Company classifies its financial assets in the following categories: at fair value through profit and loss (“FVTPL”), at fair value through other comprehensive income (“FVTOCI”) or at amortized cost. The Company determines the classification of financial assets at initial recognition. The classification of debt instruments is driven by the Company’s business model for managing the financial assets and their contractual cash flow characteristics. Equity instruments that are held for trading (including all equity derivative instruments) are classified as at FVTPL. For other equity instruments, on the day of acquisition the Company can make an irrevocable election (on an instrument-by-instrument basis) to designate them as at FVTOCI. Financial liabilities are measured at amortized cost, unless they are required to be measured at FVTPL (such as instruments held for trading or derivatives) or the Company has opted to measure them at FVTPL (such as the Convertible Debentures financial liabilities).

The Company completed a detailed assessment of its financial assets and liabilities as at January 1, 2018. The following table shows the original classification under IAS 39 and the new classification under IFRS 9:

Financial assets/liabilities |  | Original classification IAS 39 |  | New Classification IFRS 9
Cash and cash equivalents |  | Amortized cost |  | Amortized cost
Amounts receivable |  | Amortized cost |  | Amortized cost
Accounts payable and accrued liabilities |  | Amortized cost |  | Amortized cost
Convertible debentures |  | FVTPL |  | FVTPL

As the Company has taken an exemption not to restate prior periods with respect to classification and measurement, it has recognized the cumulative effects of retrospective application to shareholders’ equity at the beginning of the 2018 annual reporting period that includes the date of initial application. Therefore, the adoption of IFRS 9 resulted in a decrease to opening accumulated deficit on January 1, 2018 of $503,146 with a corresponding adjustment to accumulated other comprehensive (loss) income, arising due to the changed classification on the accumulated fair value gain (loss) due to the change in the Company’s own credit risk as at January 1, 2018.

| (ii) | Measurement

Financial assets at FVTOCI

Elected investments in equity instruments at FVTOCI are initially recognized at fair value plus transaction costs. Subsequently they are measured at fair value, with gains and losses arising from changes in fair value recognized in other comprehensive (loss) income.

Financial assets and liabilities at amortized cost

Financial assets and liabilities at amortized cost are initially recognized at fair value, and subsequently carried at amortized cost less any impairment.

13

NEXGEN ENERGY LTD.

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

(Expressed in Canadian Dollars)

FOR THE YEARS ENDED DECEMBER 31, 2018 & 2017

4. | SIGNIFICANT ACCOUNTING POLICIES (continued)

Financial assets and liabilities at FVTPL

Financial assets and liabilities carried at FVTPL are initially recorded at fair value and transaction costs are expensed in the consolidated statements of net (loss) income. Realized and unrealized gains and losses arising from changes in the fair value of the financial assets and liabilities held at FVTPL are included in the consolidated statements of net (loss) income in the period in which they arise. Where management has opted to recognize a financial liability at FVTPL, any changes associated with the Company’s own credit risk will be recognized in other comprehensive (loss) income. The Company’s Convertible Debentures financial liabilities have been recognized at FVTPL.

| (iii) | Impairment of financial assets at amortized cost

Under IFRS 9, the Company recognizes a loss allowance using the expected credit loss model on financial assets that are measured at amortized cost.

The adoption of the expected credit loss impairment model under IFRS 9 had no impact on the carrying amounts of our financial assets on the transition date given the Company transacts exclusively with large international financial institutions and amounts receivable are comprised of value-added tax receivable from the government of Canada.

At each reporting date, the Company measures the loss allowance for the financial asset at an amount equal to the lifetime expected credit losses if the credit risk on the financial asset has increased significantly since initial recognition. If at the reporting date, the financial asset has not increased significantly since initial recognition, the Company measures the loss allowance for the financial asset at an amount equal to twelve month expected credit losses.

Impairment losses on financial assets carried at amortized cost are reversed in subsequent periods if the amount of the loss decreases and the decrease can be objectively related to an event occurring after the impairment was recognized.

| (iv) | Derecognition

Financial assets

The Company derecognizes financial assets only when the contractual rights to cash flows from the financial assets expire, or when it transfers the financial assets and substantially all the associated risks and rewards of ownership to another entity. Gains and losses on derecognition are generally recognized in the consolidated statements of net (loss) income. However, gains and losses on derecognition of financial assets classified as FVTOCI remain within the accumulated other comprehensive (loss) income.

Financial liabilities

The Company derecognizes financial liabilities only when its obligations under the financial liabilities are discharged, cancelled or expired. The difference between the carrying amount of the financial liability derecognized and the consideration paid and payable, including any non-cash assets transferred or liabilities assumed, is recognized in the consolidated statements of net (loss) income.

| (n) | Future accounting pronouncements:

The following standard has not been adopted by the Company and is being evaluated:

IFRS 16 – Leases is a new standard that will replace IAS 17—Leases for the accounting and measurement of leases with a term of more than 12 months, effective for annual periods beginning on or after January 1, 2019. The new standard introduces a single lessee accounting model and requires a lessee to recognizer assets and liabilities for all leases with a term of more than 12 months, unless the underlying asset is of low value. A lessee is required to recognize a right-of-use asset representing its right to use the underlying asset and a lease liability representing its obligation to make lease payments.

On January 1, 2019 the Company plans to adopt IFRS 16 – Leases retrospectively with the cumulative effect on initially applying the standard recognized at the date of initial application. The Company will also elect to account for leases with lease terms that end within 12 months of the date of initial application as short term leases whereby the Company will recognize the lease payments as an expense over the lease term.

14

NEXGEN ENERGY LTD.

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

(Expressed in Canadian Dollars)

FOR THE YEARS ENDED DECEMBER 31, 2018 & 2017

4. | SIGNIFICANT ACCOUNTING POLICIES (continued)

Upon the adoption of IFRS 16, the Company anticipates it will record a balance of lease right of use asset of $2,965,000 and associated lease liability related to the Company’s office leases with a term of 12 months or more on the Statement of Financial Position at January 1, 2019. The leases are related to office spaces and extends to May 31, 2025. Due to the recognition of additional lease assets and liabilities, a higher amount of depreciation expense and interest on lease liabilities and a lower amount of lease or rental expense will be recognized under IFRS 16 as compared to the current standard.

5. | EXPLORATION AND EVALUATION ASSETS

| (a) | Rook I Property

The Rook I Project is located in Northern Saskatchewan, approximately 40 kilometres (km) east of the Saskatchewan – Alberta border, approximately 150 km north of the town of La Loche and 640 km northwest of the City of Saskatoon and consists of 32 contiguous mineral claims totalling 35,065 hectares.

The Rook I Project hosts the Arrow deposit discovered in February 2014, the Bow discovery in March 2015, the Harpoon discovery in August 2016 and the Arrow South discovery in July 2017. The Company released an updated mineral resource estimate and the results of a pre-feasibility study in November 2018, in each case, in respect of the Arrow deposit.

NexGen has a 100% interest in the claims subject only to: (i) a 2% net smelter return royalty (“NSR”); and (ii) a 10% production carried interest, in each case, only on claims S-113928 to S-113933 (the Arrow deposit is not located on any of these claims). The NSR may be reduced to 1% upon payment of $1 million. The 10% production carried interest provides for the owner to be carried to the date of commercial production.

| (b) | Other Athabasca Basin Properties

The Other Athabasca Basin Properties are a portfolio of early stage mineral properties in the Athabasca Basin. The properties are grouped geographically as “SW1”, “SW2” and “SW3”. The SW2 properties are held directly by NexGen. The SW1 and SW3 properties are held by NXE Energy SW1 Ltd. and NXE Energy SW3 Ltd., respectively, each a wholly owned subsidiary.

During the year ended December 31, 2017, the Company recognized an impairment of $87,749, associated with certain Castle South, Castle North, Castle South Extension and Virgin Trend properties in the statement of loss and comprehensive loss. The Company decided not to continue exploring some of these claims and allowed them to lapse.

| (c) | IsoEnergy Properties

The IsoEnergy Properties consist of (i) a 100% interest in the Radio Project, Saskatchewan (subject to a 2% net smelter return royalty and 2% gross overriding royalty); (ii) a 100% interest in the Thorburn Lake Project, Saskatchewan (subject to a 1% net smelter return royalty and a 10% carried interest which can be reduced to 1% at the holder’s option upon completion of a bankable feasibility study); (iii) a 100% interest, in each of the Madison, 2Z, Carlson Creek and North Thorburn properties, Saskatchewan; (iv) a 100% interest in the Mountain Lake property, Nunavut; (v) a 100% interest in the Geiger property, Saskatchewan; and (vi) a portfolio of newly staked claims in Saskatchewan, all of which are early stage exploration properties.

During the year ended December 31, 2018, IsoEnergy expanded the Geiger property with the acquisition of 33 claims comprised of 6,800 hectares in Dawn Lake North Block which is contiguous with IsoEnergy’s Geiger property. The combined set of claims will be referred to as Geiger henceforth. IsoEnergy acquired the claims in exchange for 3,330,000 common shares of IsoEnergy, then valued at $1,282,050 and a cash payment of $200,000. IsoEnergy acquired a 100% interest in 6 mineral claims constituting the 3,200 hectare Larocque East property in the Eastern Athabasca Basin of Saskatchewan, in exchange for $20,000 in cash and 1,000,000 common shares valued as $350,000. IsoEnergy also acquired, through staking, four new 100% owned uranium exploration properties called Whitewater, Fox, East Rim and Full Moon in the Eastern Athabasca Basin of Saskatchewan. IsoEnergy has also staked additional claims that have been consolidated into the Geiger property.

15

NEXGEN ENERGY LTD.

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

(Expressed in Canadian Dollars)

FOR THE YEARS ENDED DECEMBER 31, 2018 & 2017

5. | EXPLORATION AND EVALUATION ASSETS (continued)

The following is a summary of the capitalized costs on the projects described above.

|  | Rook I $ |  |  | Other Athabasca Basin Properties $ |  |  | IsoEnergy Properties $ |  |  | Total $ |
Acquisition costs: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance, December 31, 2017 |  |  | 235,077 |  |  |  | 1,457,607 |  |  |  | 24,737,248 |  |  |  | 26,429,932 |
Additions |  |  | — |  |  |  | — |  |  |  | 1,885,297 |  |  |  | 1,885,297 |
Balance, December 31, 2018 |  |  | 235,077 |  |  |  | 1,457,607 |  |  |  | 26,622,545 |  |  |  | 28,315,229 |
Deferred exploration costs: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance, December 31, 2017 |  |  | 112,937,959 |  |  |  | 4,942,297 |  |  |  | 8,102,367 |  |  |  | 125,982,623 |
Additions: |  |  | — |  |  |  | — |  |  |  |  |  |  |  |  |
Drilling |  |  | 16,761,145 |  |  |  | — |  |  |  | 1,103,960 |  |  |  | 17,865,105 |
General exploration |  |  | 2,885,003 |  |  |  | (23,200 | ) |  |  | 142,069 |  |  |  | 3,003,872 |
Geological and geophysical |  |  | 7,650,358 |  |  |  | 1,611,436 |  |  |  | 256,224 |  |  |  | 9,518,018 |
Labour and wages |  |  | 5,008,846 |  |  |  | — |  |  |  | 693,611 |  |  |  | 5,702,457 |
Share-based payments (Note 9) |  |  | 2,883,711 |  |  |  | — |  |  |  | 235,852 |  |  |  | 3,119,563 |
Travel |  |  | 531,903 |  |  |  | — |  |  |  | 89,824 |  |  |  | 621,727 |
|  |  | 35,720,966 |  |  |  | 1,588,236 |  |  |  | 2,521,540 |  |  |  | 39,830,742 |
Balance, December 31, 2018 |  |  | 148,658,925 |  |  |  | 6,530,533 |  |  |  | 10,623,907 |  |  |  | 165,813,365 |
Total costs, December 31, 2018 |  |  | 148,894,002 |  |  |  | 7,988,140 |  |  |  | 37,246,452 |  |  |  | 194,128,594 |

16

NEXGEN ENERGY LTD.

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

(Expressed in Canadian Dollars)

FOR THE YEARS ENDED DECEMBER 31, 2018 & 2017

5. | EXPLORATION AND EVALUATION ASSETS (continued)

|  | Rook I $ |  |  | Other Athabasca Basin Properties $ |  |  | IsoEnergy Properties $ |  |  | Total $ |
Acquisition costs: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance, December 31, 2016 |  |  | 230,807 |  |  |  | 1,124,277 |  |  |  | 21,438,306 |  |  |  | 22,793,390 |
Additions |  |  | 4,270 |  |  |  | 333,330 |  |  |  | 3,298,942 |  |  |  | 3,636,542 |
Balance, December 31, 2017 |  |  | 235,077 |  |  |  | 1,457,607 |  |  |  | 24,737,248 |  |  |  | 26,429,932 |
Deferred exploration costs: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance, December 31, 2016 |  |  | 77,007,303 |  |  |  | 4,318,909 |  |  |  | 5,327,318 |  |  |  | 86,653,530 |
Additions: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Drilling |  |  | 20,592,799 |  |  |  | 3,297 |  |  |  | 1,168,096 |  |  |  | 21,764,192 |
General exploration |  |  | 2,163,554 |  |  |  | 25,885 |  |  |  | 110,603 |  |  |  | 2,300,042 |
Geological and geophysical |  |  | 5,206,266 |  |  |  | 681,955 |  |  |  | 521,632 |  |  |  | 6,409,853 |
Labour and wages |  |  | 4,391,456 |  |  |  | — |  |  |  | 510,398 |  |  |  | 4,901,854 |
Share-based payments (Note 9) |  |  | 2,952,316 |  |  |  | — |  |  |  | 357,475 |  |  |  | 3,309,791 |
Travel |  |  | 624,265 |  |  |  | — |  |  |  | 106,845 |  |  |  | 731,110 |
|  |  | 35,930,656 |  |  |  | 711,137 |  |  |  | 2,775,049 |  |  |  | 39,416,842 |
Impairment |  |  | — |  |  |  | (87,749 | ) |  |  | — |  |  |  | (87,749 | )
Balance, December 31, 2017 |  |  | 112,937,959 |  |  |  | 4,942,297 |  |  |  | 8,102,367 |  |  |  | 125,982,623 |
Total costs, December 31, 2017 |  |  | 113,173,036 |  |  |  | 6,399,904 |  |  |  | 32,839,615 |  |  |  | 152,412,555 |

6. | COMMITMENTS

Flow-through expenditures:

IsoEnergy has raised funds through the issuance of flow-through shares. Based on Canadian tax law, IsoEnergy is required to spend this amount on eligible exploration expenditures by December 31 of the year after the year in which the shares were issued.

The premium paid for a flow-through share, which is the price paid for the share over the market price of the share, is recorded as a flow-through share premium liability. This liability is subsequently reduced when the required exploration expenditures are made, and accordingly, a reduction of the flow-through premium liability is then recorded with an offsetting reduction in the deferred tax expense to the extent that deferred income tax assets are available.

As of December 31, 2018, IsoEnergy is obligated to spend $4,036,208 on eligible exploration expenditures by the end of 2019. As the commitment is satisfied, the remaining balance of the flow-through premium liability is derecognized.

A continuity of the flow-through share premium liability is as follows:

|  | Year ended |  |  | Year ended |
|  | December 31, 2018 |  |  | December 31, 2017 |
Balance, beginning of the period |  | $ | 109,251 |  |  | $ | 179,212 |
Liability incurred on flow-through shares issued |  |  | 784,892 |  |  |  | 130,000 |
Settlement of flow-through share premium liability on expenditures made |  |  | (343,751 | ) |  |  | (199,961 | )
Balance, end of the period |  | $ | 550,392 |  |  | $ | 109,251 |

17

NEXGEN ENERGY LTD.

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

(Expressed in Canadian Dollars)

FOR THE YEARS ENDED DECEMBER 31, 2018 & 2017

6. | COMMITMENTS (continued)

Office leases:

The Company and its subsidiary, IsoEnergy, have total office lease commitments at their Vancouver and Saskatoon offices as follows:

2019 |  | $ | 1,033,557 |
2020 |  | $ | 955,935 |
2021 |  | $ | 756,469 |
2022 |  | $ | 772,552 |
2023 |  | $ | 697,626 |
2024 |  | $ | 659,397 |
2025 |  | $ | 659,397 |

In connection with the Vancouver and Saskatoon office leases, the Company paid deposits of $17,400 and $68,037, respectively, with the landlords which will be applied to the final month’s and final two months’ rents, respectively, when the office lease terms expire. The Company entered into an irrevocable Letter of Credit in the amount of $420,000 in connection with the Saskatoon office lease with an expiration date of January 1, 2020. IsoEnergy paid a deposit of $9,274 with its landlord which will be applied to the final month’s rent when the office lease term expires.

18

NEXGEN ENERGY LTD.

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

(Expressed in Canadian Dollars)

FOR THE YEARS ENDED DECEMBER 31, 2018 & 2017

7. | EQUIPMENT

|  | Computing Equipment |  |  | Software |  |  | Field Equipment |  |  | Leasehold Improvements |  |  | Road |  |  | Total |
Cost |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at December 31, 2016 |  | $ | 109,648 |  |  | $ | 279,970 |  |  | $ | 2,756,640 |  |  | $ | 215,172 |  |  | $ | 1,282,890 |  |  | $ | 4,644,320 |
Additions |  |  | 125,938 |  |  |  | 98,763 |  |  |  | 1,490,880 |  |  |  | — |  |  |  | 490,695 |  |  |  | 2,206,276 |
Disposals |  |  | — |  |  |  | — |  |  |  | (29,300 | ) |  |  | — |  |  |  | — |  |  |  | (29,300 | )
Balance at December 31, 2017 |  |  | 235,586 |  |  |  | 378,733 |  |  |  | 4,218,220 |  |  |  | 215,172 |  |  |  | 1,773,585 |  |  |  | 6,821,296 |
Additions |  |  | 69,863 |  |  |  | 371,281 |  |  |  | 2,333,896 |  |  |  | 16,685 |  |  |  | 305,810 |  |  |  | 3,097,535 |
Disposals |  |  | — |  |  |  | — |  |  |  | (54,075 | ) |  |  | — |  |  |  | — |  |  |  | (54,075 | )
Balance at December 31, 2018 |  | $ | 305,449 |  |  | $ | 750,014 |  |  | $ | 6,498,041 |  |  | $ | 231,857 |  |  | $ | 2,079,395 |  |  | $ | 9,864,756 |
Accumulated Depreciation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at December 31, 2016 |  | $ | 67,179 |  |  | $ | 121,577 |  |  | $ | 643,457 |  |  | $ | 47,844 |  |  | $ | 163,085 |  |  | $ | 1,043,142 |
Depreciation |  |  | 60,744 |  |  |  | 114,367 |  |  |  | 482,738 |  |  |  | 42,686 |  |  |  | 98,940 |  |  |  | 799,475 |
Disposals |  |  | — |  |  |  | — |  |  |  | (4,395 | ) |  |  | — |  |  |  | — |  |  |  | (4,395 | )
Balance at December 31, 2017 |  |  | 127,923 |  |  |  | 235,944 |  |  |  | 1,121,800 |  |  |  | 90,530 |  |  |  | 262,025 |  |  |  | 1,838,222 |
Depreciation |  |  | 79,703 |  |  |  | 180,188 |  |  |  | 842,944 |  |  |  | 45,198 |  |  |  | 409,982 |  |  |  | 1,558,015 |
Disposals |  |  | — |  |  |  | — |  |  |  | (43,260 | ) |  |  | — |  |  |  | — |  |  |  | (43,260 | )
Balance at December 31, 2018 |  | $ | 207,626 |  |  | $ | 416,132 |  |  | $ | 1,921,484 |  |  | $ | 135,728 |  |  | $ | 672,007 |  |  | $ | 3,352,977 |
Net book value: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
At December 31, 2017 |  | $ | 107,663 |  |  | $ | 142,789 |  |  | $ | 3,096,420 |  |  | $ | 124,642 |  |  | $ | 1,511,560 |  |  | $ | 4,983,074 |
At December 31, 2018 |  | $ | 97,823 |  |  | $ | 333,882 |  |  | $ | 4,576,557 |  |  | $ | 96,129 |  |  | $ | 1,407,388 |  |  | $ | 6,511,779 |

19

NEXGEN ENERGY LTD.

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

(Expressed in Canadian Dollars)

FOR THE YEARS ENDED DECEMBER 31, 2018 & 2017

8. | CONVERTIBLE DEBENTURES

|  | December 31, 2018 |  |  | December 31, 2017 |
2016 Debentures (a) |  | $ | 72,481,375 |  |  | $ | 90,742,373 |
2017 Debentures (b) |  |  | 65,709,509 |  |  |  | 80,627,593 |
Convertible Debentures |  | $ | 138,190,884 |  |  | $ | 171,369,966 |

| (a) | 2016 Debentures

On June 10, 2016, the Company issued US$60 million principal amount of convertible debentures (the “2016 Debentures”) which were determined to be a hybrid financial instrument comprised of the host debt contract and multiple embedded derivatives. The Company received gross proceeds of $76,416,000 (US$60 million) and net proceeds of $72,363,602 (US$56,852,383) after deducting $4,052,398 (US$3,147,617) in transaction costs from the issue of the 2016 Debentures. A 3% establishment fee of $2,292,480 (US$1.8 million) was also paid to the debenture holders through the issuance of 1,005,586 common shares. The fair value of the 2016 Debentures on issuance date was determined to be $74,123,520 (US$58.2 million).

Pursuant to an amended and restated trust indenture dated July 21, 2017, the maturity date of the 2016 Debentures was extended to July 22, 2022.

The fair value of the 2016 Debentures decreased from $90,742,373 (US$72,333,498) on December 31, 2017 to $72,481,375 (US$53,131,047) at December 31, 2018, resulting in a gain of $18,260,998 (US$19,202,451) for the year ended December 31, 2018. This gain, combined with the gain on the 2017 Debentures (see Note 8(b)) for the year ended December 31, 2018 was bifurcated with the amount of the change in fair value of the convertible debentures attributable to changes in the credit risk of the liability recognized in other comprehensive income and the remaining amount recognized in profit for the year.

|  | December 31, 2018 |  |  | December 31, 2017 |
Fair value of 2016 Debentures, beginning of period |  | $ | 90,742,373 |  |  | $ | 70,811,801 |
Fair value adjustment during the period |  |  | (18,260,998 | ) |  |  | 19,930,572 |
Interest payable |  |  | 354,480 |  |  |  | 350,900 |
2016 Debentures and interest payable |  | $ | 72,835,855 |  |  | $ | 91,093,273 |
Less: interest payable included in accounts payable & accrued liabilities |  |  | (354,480 | ) |  |  | (350,900 | )
2016 Debentures, end of period |  | $ | 72,481,375 |  |  | $ | 90,742,373 |

The 2016 Debentures were valued using a convertible bond pricing model based on a system of two coupled Black-Scholes equations where the debt and equity components are separately valued based on different default risks and assumptions.

The inputs used in the 2016 Debentures pricing model as at December 31, 2018 and December 31, 2017 are as follows:

|  | December 31, 2018 |  |  | December 31, 2017 |
Volatility |  |  | 38 | % |  |  | 39.00 | %
Expected life in years |  |  | 3.56 years |  |  |  | 4.56 years |
Risk free interest rate |  |  | 2.58 | % |  |  | 2.23 | %
Expected dividend yield |  |  | 0 | % |  |  | 0 | %
Credit spread |  |  | 25.79 | % |  |  | 25.35 | %
Underlying share price of the Company |  | $ | 2.41 |  |  | $ | 3.21 |
Conversion exercise price |  | US$ | 2.3261 |  |  | US$ | 2.3261 |
Exchange rate (C$:US$) |  | $ | 0.7330 |  |  | $ | 0.7971 |

| (b) | 2017 Debentures

On July 21, 2017, the Company issued US$60 million principal amount of convertible debentures (the “2017 Debentures”) which were also determined to be a hybrid financial instrument comprised of the host debt contract and multiple embedded derivatives. The Company received gross proceeds of $75,294,000 (US$60 million) and net proceeds of $72,482,854 (US$57,759,864) after deducting $2,811,146 (US$2,240,136) in transaction costs from the issue of the 2017 Debentures. A 3% establishment fee of $2,258,820 (US$1.8 million) was also paid to the debenture holders through the issuance of 869,271 common shares. The fair value of the 2017 Debentures on issuance date was determined to be $73,035,180 (US$58,200,000).

20

NEXGEN ENERGY LTD.

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

(Expressed in Canadian Dollars)

FOR THE YEARS ENDED DECEMBER 31, 2018 & 2017

8. | CONVERTIBLE DEBENTURES (continued)

The fair value of the 2017 Debentures decreased from $80,627,593 (US$64,270,700) on December 31, 2017 to $65,709,509 (US$48,167,064) at December 31, 2018, resulting in a gain of $14,918,084 (US$16,103,636) for the year ended December 31, 2018. This gain, combined with the gain on the 2016 Debentures (see Note 8(a)) for the year ended December 31, 2018 was bifurcated with the amount of the change in fair value of the convertible debentures attributable to changes in the credit risk of the liability recognized in other comprehensive income and the remaining amount recognized in profit for the year. For the year ended December 31, 2018 total mark to market gain related to the change in fair value of the 2016 and 2017 Debentures is $33,179,082, recorded in Statement of Loss (profit) - $32,578,261 and Other Comprehensive Income $600,821 (2017 – total mark to market loss of $27,522,985, recorded in Statement of Loss (profit) - $27,522,985 and Other Comprehensive Income - $Nil).

|  | December 31, 2018 |  |  | December 31, 2017 |
Fair value of 2017 Debentures, beginning of period |  | $ | 80,627,593 |  |  | $ | 73,035,180 |
Fair value adjustment during the period |  |  | (14,918,084 | ) |  |  | 7,592,413 |
Interest payable |  |  | 354,480 |  |  |  | 350,900 |
2017 Debentures and interest payable |  | $ | 66,063,989 |  |  | $ | 80,978,493 |
Less: interest payable included in accounts payable & accrued liabilities |  |  | (354,480 | ) |  |  | (350,900 | )
2017 Debentures, end of period |  | $ | 65,709,509 |  |  | $ | 80,627,593 |

The 2017 Debentures were valued using a convertible bond pricing model based on a system of two coupled Black-Scholes equations where the debt and equity components are separately valued based on different default risks and assumptions.

The inputs used in the 2017 Debentures pricing model as at December 31, 2018 and December 31, 2017 are as follows:

|  | December 31, 2018 |  |  | December 31, 2017 |
Volatility |  |  | 38 | % |  |  | 39.00 | %
Expected life in years |  |  | 3.56 years |  |  |  | 4.56 years |
Risk free interest rate |  |  | 2.58 | % |  |  | 2.23 | %
Expected dividend yield |  |  | 0 | % |  |  | 0 | %
Credit spread |  |  | 25.79 | % |  |  | 25.35 | %
Underlying share price of the Company |  | $ | 2.41 |  |  | $ | 3.21 |
Conversion exercise price |  | US$ | 2.6919 |  |  | US$ | 2.6919 |
Exchange rate (C$:US$) |  | $ | 0.7330 |  |  | $ | 0.7971 |

General Terms

At inception, for each of the 2016 Debentures and 2017 Debentures (collectively, the “Convertible Debentures”), the Company made an irrevocable election under IAS 39 to designate the Convertible Debentures as a financial liability at fair value through profit or loss. At their respective initial recognition date, the entire convertible instrument was measured at fair value with associated transaction costs expensed as incurred. Subsequent to initial recognition, the convertible financial instrument is marked to market at each financial reporting date and any change in fair value is recognized in profit or loss with the exception that under IFRS 9 (Note 4), the change in fair value that is attributable to change in credit risk of the liability is presented in other comprehensive income.

The Convertible Debentures bear interest at a rate of 7.5% per annum, payable semi-annually in US dollars on June 10 and December 10 in each year, with the first interest payment on the 2017 Debentures due on December 10, 2017. Two thirds of the interest (equal to 5% per annum) is payable in cash and one third of the interest (equal to 2.5% per annum) is payable, subject to any required regulatory approval, in common shares of the Company, using the volume-weighted average trading price (“VWAP”) of the common shares on the exchange or market that has the greatest trading volume in the Company’s common shares for the 20 consecutive trading days ending three trading days preceding the date on which such interest payment is due. For this purpose, the VWAP shall be converted into US dollars on each of the 20 days in the period, using the indicative rate of exchange for such currency as reported by the Bank of Canada.

The 2016 Debentures and 2017 Debentures are convertible, from time to time, into common shares of the Company at the option of the debenture holders at any time prior to maturity at a price per common share of US$2.3261 and US$2.6919, respectively (the “Conversion Price”).

21

NEXGEN ENERGY LTD.

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

(Expressed in Canadian Dollars)

FOR THE YEARS ENDED DECEMBER 31, 2018 & 2017

8. | CONVERTIBLE DEBENTURES (continued)

The 2016 Debentures and 2017 Debentures are not redeemable by the Company prior to June 10, 2019 and July 21, 2020, respectively. On or after June 10, 2019 and July 21, 2020 and prior to their maturity date of July 22, 2022, the 2016 Debentures and 2017 Debentures, respectively, may be redeemed by the Company, in whole or in part, at any time that the 20-day VWAP of the common shares exceeds 130% of the Conversion Price, on not less than 30 days’ prior notice to the debenture holders. For this purpose, the VWAP shall be converted into US dollars on each of the 20 days in the period, using the indicative rate of exchange for such currency as reported by the Bank of Canada.

Upon completion of a change of control (which includes in the case of the holders’ right to redeem the Convertible Debentures, a change in the Chief Executive Officer of the Company), the holders of the Convertible Debentures or the Company may require the Company to purchase or the holders to redeem, as the case may be, any outstanding Convertible Debentures in cash at: (i) on or prior to June 10, 2019 and July 21, 2020 for the 2016 Debentures and 2017 Debentures, respectively, 130% of the principal amount; and (ii) at any time thereafter, 115% of the principal amount, in each case plus accrued but unpaid interest, if any. In addition, upon the public announcement of a change of control that is supported by the Board, the Company may require the holders of the Convertible Debentures to convert the Convertible Debentures into common shares at the Conversion Price provided the consideration payable upon the change of control exceeds the Conversion Price and is payable in cash.

A “change of control” of the Company is defined as consisting of: (a) the acquisition by a person or group of persons acting jointly or in concert of voting control or direction over 50% or more of the Company’s outstanding common shares; (b) the amalgamation, consolidation or merger of the Company with or into another entity as a result of which the holders of the common shares immediately prior to such transaction, directly or indirectly, hold less than 50% of voting control or direction over the entity carrying on the business of the Company following such transaction; (c) the sale, assignment, transfer or other disposition of all or substantially all of the property or assets of the Company to another entity in which the holders of the common shares immediately prior to such transaction, directly or indirectly, hold less than 50% of voting control or direction over the other entity following such transaction; or (d) the removal by resolution of the shareholders of the Company, of more than 51% of the then incumbent directors of the Company which removal has not been recommended in the Company’s management information circular, or the failure to elect to the Company’s board of directors a majority of the directors proposed for election by management in the Company’s management information circular.

9. | SHARE CAPITAL AND RESERVES

Authorized Capital - Unlimited number of common shares with no par value and unlimited number of preferred shares.

Issued

For the period ended December 31, 2018:

| (a) | During the year ended December 31, 2018, the Company issued a total of 10,458,334 common shares on the exercise of 250,000 options at a price of $0.30, 5,975,000 options at a price of $0.40, 1,100,000 options at a price of $0.46, 1,300,000 options at a price of $0.50, 500,000 options at a price of $0.62, 1,000,000 options at a price of $0.64 and 333,334 options at a price of $1.51 for total proceeds of $5,074,334. As a result of the exercises, $3,276,872 was reclassified from reserves to share capital.

| (b) | On June 11, 2018 the Company issued 745,378 common shares at the then fair value of $2,154,142 to the convertible debenture holders for the share portion of the debenture interest payment.

| (c) | On December 6, 2018, the Company issued 693,994 common shares at the then fair value of $1,894,603 to the convertible debenture holders for the share portion of the debenture interest payment.

22

NEXGEN ENERGY LTD.

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

(Expressed in Canadian Dollars)

FOR THE YEARS ENDED DECEMBER 31, 2018 & 2017

9. | SHARE CAPITAL AND RESERVES (continued)

For the year ended December 31, 2017:

| (a) | During the year ended December 31, 2017, the Company issued a total of 1,424,445 common shares on the exercise of 199,446 options at a price of $0.24, 100,000 options at a price of $0.40, 50,000 options at a price of $0.425, 200,000 options at a price of $0.46, 300,000 options at a price of $0.50, 83,333 options at a price of $0.62, 250,000 options at a price of $0.64, 16,667 options at a price of $2.24, 58,333 options at a price of $2.65 and 166,666 options at a price of $2.24 for total proceeds of $1,128,032. As a result of the exercises, $853,100 was reclassified from reserves to share capital.

| (b) | In May 2017, the Company issued a total of 5,714,286 common shares on the exercise of 5,714,286 warrants at a price of $0.50 for total proceeds of $2,857,143.

| (c) | On June 12, 2017, the Company issued a total of 327,863 common shares valued at $963,917 to the holders of the 2016 Debentures for the share portion of the debenture interest payment.

| (d) | On July 21, 2017, the Company completed a private placement pursuant to which it issued a total of 24,146,424 common shares at a price of US$2.0707 for gross proceeds of $62,745,000 (US$50 million). The Company also issued 869,271 common shares valued at $2,258,820 to the debenture holders as part of the establishment fee equal to 3% of the principal amount of the 2017 Debentures. Total share issuance costs for this financing was $2,513,028.

| (e) | On September 18, 2017, the Company issued 111,110 common shares valued at $333,330 to acquire the remaining 40% interest in the Dufferin Lake property included in the Other Athabasca Basin Properties (Note 5(b)). Total share issuance costs for this transaction was $6,604.

| (f) | On December 12, 2017, the Company issued 555,670 common shares at the then fair value of $1,955,959 to the convertible debenture holders for the share portion of the debenture interest payment.

Stock Options

Pursuant to the Company’s stock option plan, directors may, from time to time, authorize the issuance of options to directors, officers, employees and consultants of the Company, enabling them to acquire up to 20% of the issued and outstanding common shares of the Company.

The options can be granted for a maximum term of 10 years and are subject to vesting provisions as determined by the Board of Directors of the Company.

Stock option transactions and the number of stock options are summarized as follows:

|  | Number of Stock Options |  |  | Weighted Average Exercise Price |
Outstanding at December 31, 2016 |  |  | 33,466,112 |  |  | $ | 1.06 |
Granted |  |  | 6,200,000 |  |  |  | 3.27 |
Exercised |  |  | (1,424,445 | ) |  |  | 0.79 |
Forfeited |  |  | (383,333 | ) |  |  | 2.53 |
Outstanding at December 31, 2017 |  |  | 37,858,334 |  |  | $ | 1.42 |
Granted |  |  | 9,045,482 |  |  |  | 2.64 |
Exercised |  |  | (10,458,334 | ) |  |  | 0.49 |
Forfeited |  |  | (208,334 | ) |  |  | 3.23 |
Outstanding at December 31, 2018 |  |  | 36,237,148 |  |  | $ | 1.98 |
Number of options exercisable |  |  | 28,373,492 |  |  | $ | 1.76 |

23

NEXGEN ENERGY LTD.

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

(Expressed in Canadian Dollars)

FOR THE YEARS ENDED DECEMBER 31, 2018 & 2017

9. | SHARE CAPITAL AND RESERVES (continued)

As at December 31, 2018, the Company has stock options outstanding and exercisable as follows:

Number of Options |  |  | Number Exercisable |  |  | Exercise Price |  |  | Remaining Contractual Life (Years) |  |  | Expiry Date
| 33,333 |  |  |  | 33,333 |  |  | $ | 2.24 |  |  |  | 0.07 |  |  | January 25, 2019
| 8,333 |  |  |  | 8,333 |  |  | $ | 3.39 |  |  |  | 0.07 |  |  | January 25, 2019
| 150,000 |  |  |  | 150,000 |  |  | $ | 0.46 |  |  |  | 0.16 |  |  | February 28, 2019
| 50,000 |  |  |  | 50,000 |  |  | $ | 0.50 |  |  |  | 0.16 |  |  | February 28, 2019
| 75,000 |  |  |  | 75,000 |  |  | $ | 0.64 |  |  |  | 0.16 |  |  | February 28, 2019
| 50,000 |  |  |  | 50,000 |  |  | $ | 2.65 |  |  |  | 0.16 |  |  | February 28, 2019
| 25,000 |  |  |  | 25,000 |  |  | $ | 2.24 |  |  |  | 0.16 |  |  | February 28, 2019
| 25,000 |  |  |  | 25,000 |  |  | $ | 3.39 |  |  |  | 0.16 |  |  | February 28, 2019
| 250,000 |  |  |  | 250,000 |  |  | $ | 0.64 |  |  |  | 0.29 |  |  | April 15, 2019
| 800,000 |  |  |  | 800,000 |  |  | $ | 2.65 |  |  |  | 0.29 |  |  | April 15, 2019
| 475,000 |  |  |  | 475,000 |  |  | $ | 2.24 |  |  |  | 0.29 |  |  | April 15, 2019
| 475,000 |  |  |  | 475,000 |  |  | $ | 3.39 |  |  |  | 0.29 |  |  | April 15, 2019
| 2,450,000 |  |  |  | 2,450,000 |  |  | $ | 0.40 |  |  |  | 0.39 |  |  | May 23, 2019
| 3,300,000 |  |  |  | 3,300,000 |  |  | $ | 0.46 |  |  |  | 0.98 |  |  | December 24, 2019
| 2,850,000 |  |  |  | 2,850,000 |  |  | $ | 0.50 |  |  |  | 1.41 |  |  | May 27, 2020
| 3,250,000 |  |  |  | 3,250,000 |  |  | $ | 0.64 |  |  |  | 1.96 |  |  | December 16, 2020
| 250,000 |  |  |  | 250,000 |  |  | $ | 2.69 |  |  |  | 2.44 |  |  | June 8, 2021
| 4,425,000 |  |  |  | 4,425,000 |  |  | $ | 2.65 |  |  |  | 2.48 |  |  | June 23, 2021
| 2,750,000 |  |  |  | 2,750,000 |  |  | $ | 2.24 |  |  |  | 2.96 |  |  | December 15, 2021
| 250,000 |  |  |  | 166,667 |  |  | $ | 3.11 |  |  |  | 3.31 |  |  | April 22, 2022
| 1,475,000 |  |  |  | 983,333 |  |  | $ | 2.93 |  |  |  | 3.87 |  |  | November 13, 2022
| 3,775,000 |  |  |  | 2,516,667 |  |  | $ | 3.39 |  |  |  | 3.96 |  |  | December 14, 2022
| 475,000 |  |  |  | 158,333 |  |  | $ | 2.39 |  |  |  | 4.28 |  |  | April 13, 2023
| 4,525,000 |  |  |  | 1,508,333 |  |  | $ | 2.85 |  |  |  | 4.44 |  |  | June 8, 2023
| 100,000 |  |  |  | 33,333 |  |  | $ | 2.66 |  |  |  | 4.47 |  |  | June 20, 2023
| 720,482 |  |  |  | 240,160 |  |  | $ | 2.49 |  |  |  | 4.64 |  |  | August 21, 2023
| 3,225,000 |  |  |  | 1,075,000 |  |  | $ | 2.41 |  |  |  | 5.00 |  |  | December 31, 2023
36,237,148 |  |  | 28,373,492 |  |  |  |  |  |  |  |  |

The Company uses the Black-Scholes option pricing model to calculate the fair value of stock options granted. The model requires management to make estimates, which are subjective and may not be representative of actual results. Changes in assumptions can materially affect estimates of fair values. The following weighted average assumptions were used to estimate the weighted average grant date fair values for the years ended December 31, 2018 and December 31, 2017:

|  | December 31, 2018 |  |  | December 31, 2017 |
Expected stock price volatility |  |  | 83.41 | % |  |  | 81.72 | %
Expected life of options |  |  | 5.00 years |  |  |  | 5.00 years |
Risk free interest rate |  |  | 2.08 | % |  |  | 1.53 | %
Expected forfeitures |  |  | 0 | % |  |  | 0 | %
Expected dividend yield |  |  | 0 | % |  |  | 0 | %
Weighted average fair value per option granted |  | $ | 1.76 |  |  | $ | 2.13 |

Share-based payments for options vested for the year ended December 31, 2018 amounted to $16,855,862 (2017 – $12,493,458) of which $13,736,299 (2017 – $9,183,667) was expensed to the statement of loss and comprehensive loss and $3,119,563 (2017—$3,309,791) was capitalized to exploration and evaluation assets (Note 5).

24

NEXGEN ENERGY LTD.

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

(Expressed in Canadian Dollars)

FOR THE YEARS ENDED DECEMBER 31, 2018 & 2017

10. | RELATED PARTY TRANSACTIONS

Key management personnel include those persons having authority and responsibility for planning, directing and controlling the activities of the Company as a whole. The Company has determined that key management personnel consists of executive and non-executive members of the Company’s Board of Directors and corporate officers.

Remuneration attributed to key management personnel can be summarized as follows:

|  | For the years ended |
|  | December 31, 2018 |  |  | December 31, 2017 |
Short-term compensation(1) |  | $ | 3,961,649 |  |  | $ | 4,101,441 |
Share-based payments (stock options)(2) |  |  | 12,377,331 |  |  |  | 8,830,606 |
|  | $ | 16,338,980 |  |  | $ | 12,932,047 |

(1) | Short-term compensation to key management personnel for the year ended December 31, 2018 amounted to $3,961,649 (2017 - $4,101,441) of which $3,320,106 (2017 - $3,164,827) was expensed and included in salaries, benefits and directors’ fees on the statement of loss and comprehensive loss. The remaining $641,543 (2017 - $936,614) was capitalized to exploration and evaluation assets.

(2) | Share-based payments to key management personnel for the year ended December 31, 2018 amounted to $12,377,331 (2017 - $8,830,606) of which $11,534,811 (2017 - $7,696,538) was expensed and $842,520 (2017 - $1,134,068) was capitalized to exploration and evaluation assets.

As at December 31, 2018, there was $1,415,900 (December 31, 2017 - $542,361) included in accounts payable and accrued liabilities owing to its directors and officers for compensation.

11. | CAPITAL MANAGEMENT

The Company manages its capital structure and makes adjustments to it, based on the funds available to the Company, in order to support the acquisition, exploration and evaluation of assets. The Board of Directors does not establish quantitative return on capital criteria for management, but rather relies on the expertise of the Company’s management to sustain the future development of the business.

In the management of capital, the Company considers all components of equity and debt and is dependent on third party financing, whether through debt, equity, or other means. Although the Company has been successful in raising funds to date, there is no assurance that the Company will be successful in obtaining required financing in the future or that such financing will be available on terms acceptable to the Company.

The properties in which the Company currently has an interest are in the exploration stage. As such the Company has historically relied on the equity markets and convertible debt to fund its activities. The Company will continue to assess new properties and seek to acquire an interest in additional properties if it determines that there is sufficient geologic or economic potential and if it has adequate financial resources to do so.

Management reviews its capital management approach on an on-going basis and believes that this approach, given the relative size of the Company, is reasonable.

The Company is not subject to externally imposed capital requirements. There were no changes in the Company’s approach to capital management during the period.

12. | FINANCIAL INSTRUMENTS

The Company’s financial instruments consist of cash and cash equivalents, amounts receivable, accounts payable and accrued liabilities and the Convertible Debentures.

The fair values of the Company’s cash and cash equivalents, amounts receivable and accounts payable and accrued liabilities approximate their carrying value, due to their short-term maturities or liquidity.

25

NEXGEN ENERGY LTD.

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

(Expressed in Canadian Dollars)

FOR THE YEARS ENDED DECEMBER 31, 2018 & 2017

12. | FINANCIAL INSTRUMENTS (continued)

Fair Value Measurement

The Company classifies the fair value of financial instruments according to the following hierarchy based on the amount of observable inputs used to value the instrument:

| • |  | Level 1 – quoted prices in active markets for identical assets or liabilities.

| • |  | Level 2 – inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly (i.e. as prices) or indirectly (i.e. derived from prices).

| • |  | Level 3 – inputs for the asset or liability that are not based on observable market data.

The Convertible Debentures are re-measured at fair value at each reporting date with any change in fair value recognized in profit or loss with the exception that under IFRS 9 (Note 4), the change in fair value that is attributable to change in credit risk is presented in other comprehensive income (Note 8). The Convertible Debentures are classified as Level 2.

As at December 31, 2018, the Company’s risk exposures and the impact on the Company’s financial instruments are summarized below:

| (a) | Credit Risk

Credit risk is the risk that one party to a financial instrument will fail to discharge an obligation and cause the other party to incur a financial loss. Financial instruments potentially subject to credit risk are cash and cash equivalents and amounts receivable. The Company holds cash and cash equivalents with large Canadian and Australian banks. Credit risk is concentrated as a large portion of the Company’s cash and cash equivalents is held at one financial institution. Management believes the risk of loss to be remote. The Company’s amounts receivable consists of input tax credits receivable from the Government of Canada and interest accrued on cash equivalents. Accordingly, the Company does not believe it is subject to significant credit risk.

| (b) | Liquidity Risk

Liquidity risk is the risk that an entity will encounter difficulty in raising funds to meet commitments associated with financial instruments. The Company attempts to manage liquidity risk by maintaining sufficient cash and cash equivalent balances. Liquidity requirements are managed based on expected cash flows to ensure that there is sufficient capital to meet short-term obligations. The Company’s approach to managing liquidity risk is to ensure that it will have sufficient liquidity to meet liabilities when due. As at December 31, 2018, NexGen had cash and cash equivalents of $125,059,189 to settle accounts payable and accrued liabilities of $5,966,921.

| (c) | Market Risk

Market risk is the risk of loss that may arise from changes in market factors such as interest rates, foreign exchange rates and commodity and equity prices.

| (i) | Interest Rate Risk

Interest rate risk is the risk that the future cash flows of a financial instrument will fluctuate due to changes in market interest rates. The Company holds its cash and cash equivalents in bank accounts that earn variable interest rates. Due to the short-term nature of these financial instruments, fluctuations in market rates do not have a significant impact on the estimated fair value of the Company’s cash and cash equivalent balances as of December 31, 2018. The Company manages interest rate risk by maintaining an investment policy for short-term investments. This policy focuses primarily on preservation of capital and liquidity. The Company monitors the investments it makes and is satisfied with the credit rating of its banks. The Convertible Debentures, in an aggregate principal amount of US$120 million, carry a fixed interest rate of 7.5% and hence, are not subject to interest rate fluctuations.

26

NEXGEN ENERGY LTD.

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

(Expressed in Canadian Dollars)

FOR THE YEARS ENDED DECEMBER 31, 2018 & 2017

12. | FINANCIAL INSTRUMENTS (continued)

| (ii) | Foreign Currency Risk

The functional currency of the Company and its subsidiaries is the Canadian dollar. The Company is affected by currency transaction risk and currency translation risk. Consequently, fluctuations of the Canadian dollar in relation to other currencies impact the fair value of financial assets, liabilities and operating results. Financial assets and liabilities subject to currency translation risk primarily include US dollar denominated cash and US dollar accounts payable and accrued liabilities. The Company maintains Canadian and US dollar bank accounts in Canada.

The Company is exposed to foreign exchange risk on its US dollar denominated Convertible Debentures. At maturity the US$120 million principal amount of the Convertible Debentures is due in full, and prior to then at a premium upon the occurrence of certain events, including a change of control. The Company holds sufficient US dollars to make all cash interest payments due under the Convertible Debentures until maturity but not to pay the principal amount. Accordingly, the Company is subject to risks associated with fluctuations in the Canadian/US dollar exchange rate that may make the Convertible Debentures more costly to repay.

| (iii) | Price risk

The Company is exposed to price risk with respect to commodity and equity prices. Equity price risk is defined as the potential adverse impact on the Company’s earnings due to movements in individual equity prices or general movements in the level of the stock market. Accordingly, significant movements in the Company’s share price may affect the valuation of the Convertible Debentures which may adversely impact its earnings.

Commodity price risk is defined as the potential adverse impact on earnings and economic value due to commodity price movements and volatility. Future declines in commodity prices may impact the valuation of long-lived assets. The Company closely monitors commodity prices of uranium, individual equity movements, and the stock market to determine the appropriate course of action, if any, to be taken by the Company.

Sensitivity Analysis

As at December 31, 2018, the Company’s US dollar net financial liabilities were US$75,988,648. Thus a 10% change in the Canadian dollar versus the US dollar exchange rates would give rise to a $10,366,195 change in loss and comprehensive loss.

The Company has not entered into any agreements or purchased any instruments to hedge possible currency risks at this time.

13. | SEGMENT INFORMATION

The Company operates in one reportable segment, being the acquisition, exploration and development of uranium properties. All of the Company’s non-current assets are located in Canada.

14. | INCOME TAXES

A reconciliation of income taxes at statutory rates with the reported taxes is as follows:

|  | 2018 |  |  | 2017 |
Net profit (loss) for the year |  | $ | 1,182,308 |  |  | $ | (56,863,922 | )
Statutory rate |  |  | 27.00 | % |  |  | 26.75 | %
Expected income tax (recovery) |  | $ | 319,000 |  |  | $ | (15,211,000 | )
Permanent differences |  |  | 5,165,000 |  |  |  | 1,431,000 |
Impact of flow-through shares |  |  | 496,000 |  |  |  | 580,000 |
Share issuance costs |  |  | — |  |  |  | (1,276,000 | )
Adjustment to prior years provision versus statutory tax returns |  |  | (8,000 | ) |  |  | (597,000 | )
Change in unrecognized deductible temporary differences and other |  |  | (6,281,000 | ) |  |  | 15,040,000 |
Total |  | $ | (309,000 | ) |  | $ | (33,000 | )

27

NEXGEN ENERGY LTD.

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

(Expressed in Canadian Dollars)

FOR THE YEARS ENDED DECEMBER 31, 2018 & 2017

14. | INCOME TAXES (continued)

The Company’s income tax (recovery) expense is comprised of the following:

|  | 2018 |  |  | 2017 |
Deferred income tax recovery |  | $ | (309,000 | ) |  | $ | (33,000 | )
Total |  | $ | (309,000 | ) |  | $ | (33,000 | )

The tax effects of temporary differences between amounts recorded in the Company’s accounts and the corresponding amounts as calculated for income tax purposes give rise to the following deferred tax (assets) and liabilities:

|  | 2018 |  |  | 2017 |
Exploration and evaluation assets |  | $ | 5,998,000 |  |  | $ | 4,333,000 |
Convertible debentures |  |  | 4,041,000 |  |  |  | — |
Non-capital losses |  |  | (9,639,000 | ) |  |  | (3,916,000 | )
Share issuance costs |  |  | (177,000 | ) |  |  | (119,000 | )
Equipment |  |  | (24,000 | ) |  |  | (18,000 | )
Net deferred tax liabilities |  | $ | 199,000 |  |  | $ | 280,000 |

Movement in the Company’s deferred tax liability balance in the year is as follows:

|  | 2018 |  |  | 2017 |
Opening balance |  | $ | 280,000 |  |  | $ | 137,000 |
Recognized in income tax expense |  |  | 35,000 |  |  |  | 167,000 |
Recognized in equity |  |  | (116,000 | ) |  |  | (24,000 | )
Net deferred tax liability |  | $ | 199,000 |  |  | $ | 280,000 |

The significant components of the Company’s temporary differences, unused tax credits and unused tax losses that have not been included on the consolidated statement of financial position are as follows:

|  | 2018 |  |  | Expiry Date Range |  | 2017 |  |  | Expiry Date Range
Temporary Differences |  |  |  |  |  |  |  |  |  |  |  |
Non-capital losses available for future periods |  | $ | 31,030,000 |  |  | 2031 to 2037 |  | $ | 24,735,000 |  |  | 2031 to 2037
Net capital losses |  |  | 355,000 |  |  | No expiry |  |  | 355,000 |  |  | No expiry
Share issuance costs |  |  | 8,179,000 |  |  | — |  |  | 12,148,000 |  |  | —
Convertible debt |  |  | — |  |  | — |  |  | 24,211,000 |  |  | —
Equipment |  |  | 424,000 |  |  | — |  |  | 513,000 |  |  | —

Tax attributes are subject to review, and potential adjustment, by tax authorities.

28

NEXGEN ENERGY LTD.

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

(Expressed in Canadian Dollars)

FOR THE YEARS ENDED DECEMBER 31, 2018 & 2017

15. | NON-CONTROLLING INTERESTS

During the year ended December 31, 2016, the Company incorporated four new wholly owned subsidiaries in Canada and transferred certain exploration and evaluation assets to three of its wholly owned subsidiaries (Note 5). As at December 31, 2018, NexGen held 100% ownership of the subsidiaries with the exception of IsoEnergy, where it retained 53.35% of IsoEnergy’s outstanding common shares (December 31, 2017 – 63.90%) (Note 4(b)).

During the year ended December 31, 2017, IsoEnergy issued 999,999 of its flow-through common shares to unrelated third parties in exchange for gross proceeds of $1,100,000. A further 3,000,000 and 1,000,000 of its common shares were issued for the acquisition of the Radio and Geiger properties, respectively.

During the year ended December 31, 2018, IsoEnergy issued 10,848,200 of its flow-through common shares to unrelated third parties, 102,600 common shares to related parties and 7,022,520 to the Company in exchange for gross proceeds of $7,710,764. IsoEnergy issued a further 3,330,000 common shares for the acquisition of Dawn Lake North Block which is contiguous with IsoEnergy’s Geiger property and 1,000,000 of its common shares for the acquisition of the Laroque East uranium exploration property (see Note 5(c)).

For financial reporting purposes, the assets, liabilities, results of operations, and cash flows of the Company’s wholly owned subsidiaries and non-wholly owned subsidiary, IsoEnergy, are included in NexGen’s consolidated financial statements. Third party investors’ share of the net earnings of IsoEnergy is reflected in the loss and comprehensive loss attributable to non-controlling interests in the consolidated statements of loss and comprehensive loss.

Summarized financial information for IsoEnergy Ltd. is as follows:

|  | 2018 |  |  | 2017 |
Cash and cash equivalents |  | $ | 6,405,000 |  |  | $ | 3,325,000 |
Other current assets |  |  | 155,000 |  |  |  | 67,000 |
Non-current assets |  |  | 43,511,000 |  |  |  | 39,124,000 |
Total assets |  | $ | 50,071,000 |  |  | $ | 42,516,000 |
Current liabilities |  |  | 817,000 |  |  |  | 247,000 |
Non-current liabilities |  |  | 199,000 |  |  |  | 281,000 |
Total liabilities |  | $ | 1,016,000 |  |  | $ | 528,000 |
Loss from operations |  | $ | 2,142,000 |  |  | $ | 2,516,000 |
Loss and comprehensive loss |  |  | 1,832,000 |  |  |  | 2,462,000 |
Net cash flow from operating activities |  |  | (1,679,000 | ) |  |  | (1,536,000 | )
Net cash flow from investing activities |  |  | (2,522,000 | ) |  |  | (2,647,000 | )
Net cash flow from financing activities |  |  | 7,282,000 |  |  |  | 1,017,000 |
Net increase (decrease) in cash and cash equivalents |  | $ | 3,081,000 |  |  | $ | (3,166,000 | )

29

NEXGEN ENERGY LTD.

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

(Expressed in Canadian Dollars)

FOR THE YEARS ENDED DECEMBER 31, 2018 & 2017

16. | SUPPLEMENTAL DISCLOSURE WITH RESPECT TO CASH FLOWS

The significant non-cash transactions during the year ended December 31, 2018 included:

| a) | At December 31, 2018, $2,763,713 of exploration and evaluation asset expenditures and $114,376 of equipment expenditures were included in accounts payable and accrued liabilities.

| b) | At December 31, 2018, $708,960 of interest expense related to the convertible debentures was included in the accounts payable and accrued liabilities. On June 12, 2018 the Company issued 745,378 common shares valued at $2,154,142 for the non-cash potion of the convertible debenture interest payment. On December 11, 2018 the Company issued 693,994 common shares valued at $1,894,603 for the non-cash potion of the convertible debenture interest payment.

| c) | Share-based payments of $3,119,563 was included in exploration and evaluation assets (Note 5).

| d) | The re-allocation upon exercise of stock options from reserves to share capital of $3,276,872.

| e) | In the year ended December 31, 2018 IsoEnergy issued 3,330,000 shares valued at $1,282,050 as a partial payment to expand its interest in the Geiger property (see Note 5(c)).

| f) | In the year ended December 31, 2018 IsoEnergy issued 1,000,000 shares valued at $350,000 as a partial payment to acquire Laroque East uranium exploration property (see Note 5(c)).

The significant non-cash transactions during the year ended December 31, 2017 included:

| a) | At December 31, 2017, $612,900 of exploration and evaluation asset expenditures and $305,135 of equipment expenditures were included in accounts payable and accrued liabilities.

| b) | At December 31, 2017, $689,976 of interest expense related to the convertible debentures was included in accounts payable and accrued liabilities. On June 12, 2017, the Company issued 327,863 common shares valued at $963,917 for the non-cash portion of the convertible debenture interest payment. On December 11, 2017, the Company issued 555,670 common shares valued at $1,955,958 for the non-cash portion of the 2016 Debenture and 2017 Debenture interest payment.

| c) | Share-based payments of $3,309,791 included in exploration and evaluation assets (Note 5).

| d) | The re-allocation upon exercise of stock options from reserves to share capital of $853,100.

| e) | The Company issued 111,110 common shares to acquire the remaining 40% interest in the Dufferin Lake property recorded at the estimated fair value of the common shares of $333,330 (Note 5).

| f) | IsoEnergy issued an aggregate of 4,000,000 common shares for the acquisition of mineral properties recorded at the estimated fair value of the common shares of $3,040,000 (Note 5).

30

NEXGEN ENERGY LTD.

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

(Expressed in Canadian Dollars)

FOR THE YEARS ENDED DECEMBER 31, 2018 & 2017

17. | LOSS (PROFIT) PER SHARE

Basic net income per share provides a measure of the interests of each ordinary common share in the Company’s performance over the year. Diluted net income per share adjusts basic net income per share for the effect of all dilutive potential common shares.

|  | 2018 |  |  | 2017 |
Basic loss (profit) per share |  |  |  |  |  |  |  |
Loss (profit) attributable to common shareholders |  | $ | (2,269,689 | ) |  | $ | 56,038,329 |
Weighted average number of common shares |  |  | 345,868,725 |  |  |  | 321,921,938 |
Basic loss (profit) per share |  | $ | (0.01 | ) |  | $ | 0.17 |
Diluted loss (profit) per share |  |  |  |  |  |  |  |
Loss (profit) available to common shareholders |  | $ | (2,269,689 | ) |  | $ | 56,038,329 |
Interest expense on convertible debentures |  |  | 11,954,146 |  |  |  | — |
Mark to market gain on convertible debentures |  |  | (32,578,261 | ) |  |  | — |
Diluted Loss (profit) available to common shareholders (diluted) |  | $ | 22,893,804 |  |  | $ | 56,038,329 |
Weighted average number of common shares |  |  | 345,868,725 |  |  |  | 321,921,938 |
Effect of conversion of convertible debentures |  |  | 48,083,337 |  |  |  | — |
Effect of share options on issue |  |  | 19,431,991 |  |  |  | — |
Weighted average number of common shares (diluted) at December 31 |  |  | 413,384,053 |  |  |  | 321,921,938 |
Diluted loss (profit) per common shares |  | $ | 0.06 |  |  | $ | 0.17 |

At December 31, 2018, 16,350,000 options (2017: nil) were excluded from the diluted weighted-average number of common shares calculation because their effect would have been anti-dilutive

18. | COMPARATIVE FIGURES

Certain amounts have been reclassified to conform with current period presentation.

31