These consolidated financial statements have been prepared using accounting principles generally accepted in the United States (“U.S. GAAP”) and include the accounts of Trilogy and its wholly owned subsidiary, NovaCopper US Inc. (dba “Trilogy Metals US”). All intercompany transactions are eliminated on consolidation. For variable interest entities (“VIEs”) where Trilogy is not the primary beneficiary, we use the equity method of accounting.

All figures are in United States dollars unless otherwise noted. References to CDN$ refer to amounts in Canadian dollars.

These financial statements were approved by the Company’s Board of Directors for issue on February 11, 2021.

Cash and cash equivalents had been comprised of highly liquid investments maturing less than 90 days from date of initial investment.

Investments in unconsolidated ventures over which the Company has the ability to exercise significant influence, but does not control, are accounted for under the equity method and include the Company’s investment in the Ambler Metals project. We identified Ambler Metals LLC as a VIE as the entity is dependent on funding from its owners. All funding, ownership, voting rights and power to exercise control is shared equally on a 50/50 basis between the owners of the VIE. Therefore, the Company has determined that it is not the primary beneficiary of the VIE. The Company’s maximum exposure to loss is its investment in Ambler Metals LLC.

Ambler Metals LLC is a non-publicly traded equity investee holding exploration and development projects. Investments in nonconsolidated entities accounted for under the equity method are assessed for impairment whenever changes in the facts and circumstances indicate a loss in value has occurred. When indicators exist, the fair value is estimated and compared to the investment carrying value. If any impairment is judgmentally determined to be other than temporary, the carrying value of the investment is written down to fair value. The fair value of the impaired investment is determined based on quoted market prices, if available, or upon the present value of expected future cash flows using discount rates and other assumptions believed to be consistent with those used by principal market participants and observed market earnings multiples of comparable companies. Events that could indicate impairment of an investment in affiliates include a significant decrease in long-term expected commodity prices, a significant increase in expected operating or capital costs, unfavorable exploration results or technical studies, a significant decrease in reserves, a loss of significant mineral claims or a change in the development plan or strategy for the project.

Plant and equipment were recorded at cost and amortization began when the asset was put into service. Amortization is calculated on a straight-line basis over the respective assets’ estimated useful lives. Amortization periods by asset class are:

All direct costs related to the acquisition of mineral property interests were capitalized. Mineral property exploration expenditures were expensed when incurred. When it has been established that a mineral deposit is commercially mineable, an economic analysis has been completed and permits are obtained, the costs subsequently incurred to develop a mine on the property prior to the start of mining operations are capitalized. Capitalized costs will be amortized following commencement of production using the unit of production method over the estimated life of proven and probable reserves.

The acquisition of title to mineral properties is a complicated and uncertain process. The Company has taken steps, in accordance with industry standards, to verify the title to mineral properties held prior to being transferred to the Joint Venture, in which it has an interest. Although the Company has made efforts to ensure that legal titles to its mining assets are properly recorded, there can be no assurance that such title will be secured indefinitely.

Management assesses the possibility of impairment in the carrying value of long-lived assets whenever events or circumstances indicate that the carrying amounts of the asset or asset group may not be recoverable. Management calculates the estimated undiscounted future net cash flows relating to the asset or asset group using estimated future prices, proven and probable reserves and other mineral resources, and operating, capital and reclamation costs. When the carrying value of an asset exceeds the related undiscounted cash flows, the asset is written down to its estimated fair value, which is usually determined using discounted future cash flows. Management’s estimates of mineral prices, mineral resources, foreign exchange rates, production levels operating, capital and reclamation costs are subject to risk and uncertainties that may affect the determination of the recoverability of the long-lived asset. It is possible that material changes could occur that may adversely affect management’s estimates.

The liability method of accounting for income taxes is used and is based on differences between the accounting and tax bases of assets and liabilities. Deferred income tax assets and liabilities are recognized for temporary differences between the tax and accounting basis of assets and liabilities as well as for the benefit of losses available to be carried forward to future years for tax purposes using enacted income tax rates expected to be in effect for the period in which the differences are expected to reverse. Deferred income tax assets are evaluated and, if realization is not considered more likely than not, a valuation allowance is provided.

The Company recognizes tax benefits from uncertain tax positions only if it is at least more likely than not that the tax position will be sustained on examination by the taxing authorities, based on the technical merits of the position. Any tax benefits recognized in the financial statements from such a position are measured based on the largest benefit that

has a greater than 50% likelihood of being realized upon settlement with the taxing authorities. Related interest and penalties, if any, are recorded as tax expense in the tax provision.

Held-for-trading financial assets and liabilities are recorded at fair value as determined by active market prices or valuation models, as appropriate. Valuation models require the use of assumptions which may include the expected life of the instrument, the expected volatility, dividend payouts, and interest rates. In determining these assumptions, management uses readily observable market inputs where available or, where not available, inputs generated by management. Changes in fair value of held-for-trading financial instruments are recorded in income or loss for the period. Held-for-trading financial assets consisting of common share and warrant investments in a publicly-held mining company were disposed during the 2018 fiscal year.

Loans and receivables are recorded initially at fair value, net of transaction costs incurred, and subsequently at amortized cost using the effective interest rate method. Loans and receivables consist of cash and cash equivalents, accounts receivable, and deposits.

Other financial liabilities are recorded initially at fair value and subsequently at amortized cost using the effective interest rate method. Other financial liabilities include accounts payable and accrued liabilities.

Monetary assets and liabilities are translated into United States dollars at the exchange rate in effect at the balance sheet date, and non-monetary assets and liabilities at the exchange rate in effect at the time of acquisition or issue. Income and expenses are translated at rates approximating the exchange rate in effect at the time of transactions. Exchange gains or losses arising on translation are included in income or loss for the period.

The functional currency of the Company and its subsidiary and the Company’s reporting currency is the United States dollar.

Earnings and loss per common share is calculated based on the weighted average number of common shares outstanding during the year. The Company follows the treasury stock method in the calculation of diluted earnings per share. Under the treasury stock method, the weighted average number of common shares outstanding used for the calculation of diluted loss per share assumes that the proceeds to be received on the exercise of dilutive stock options and in the prior year, warrants are used to repurchase common shares at the average market price during the period.

Compensation expense for options granted to employees, directors and certain service providers is determined based on estimated fair values of the options at the time of grant using the Black-Scholes option pricing model, which takes into account, as of the grant date, the fair market value of the shares, expected volatility, expected dividend yield and the risk-free interest rate over the expected life of the option. The compensation cost is recognized using the graded attribution method over the vesting period of the respective options. The expense relating to the fair value of stock options is included in expenses and is credited to contributed surplus. Shares are issued from treasury in settlement of options exercised.

Compensation expense for restricted share units (“RSUs”) and deferred share units (“DSUs”) granted to employees and directors, respectively, is determined based on estimated fair values of the units at the time of grant using quoted market prices or at the time the units qualify for equity classification under ASC 718. The cost is recognized using the graded attribution method over the vesting period of the respective units. The expense relating to the fair value of the units is included in expenses, net of forfeitures and is credited to other liabilities or contributed surplus based on the unit’s

classification. Units may be settled in either i) cash, and/or ii) shares purchased in the open market, and/or iii) shares issued from treasury, at the Company’s election at the time of vesting.

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions of future events that affect the reported amount of assets and liabilities and disclosure of contingent liabilities at the date of the financial statements, and the reported amounts of expenditures during the period. Significant judgments include the assessment of potential indicators of impairment of mineral properties. Significant estimates include the measurement of the South32 property acquisition option and subsequent equity method investment, income taxes, and the valuation of stock-based compensation. Actual results could differ materially from those reported.

In February 2016, the FASB issued new accounting requirements for accounting for, presentation of, and classification of leases (“ASU 2016-02”) which, together with subsequent amendments, is included in ASC 842, Leases. ASC 842 became effective for the Company as of December 1, 2019.

The Company adopted ASC 842 using the modified retrospective transition method by applying the transition provision and recording our cumulative adjustment to opening deficit at the beginning of the period of adoption on December 1, 2019, rather than at the beginning of the comparative period presented. Therefore, in the comparative periods, we continue to apply the legacy guidance in ASC 840, including its disclosure requirements. We elected to apply all of the transition practical expedients available, including:

In addition, we elected to apply the short-term lease recognition exemption and elected to apply the practical expedient to not separate lease and non-lease components for all applicable leases on transition. The adoption of this new standard resulted in the recognition of right of use assets and lease liabilities of $786,000 as at December 1, 2019.