ALIO GOLD INC.

(Formerly Timmins Gold Corp.)

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

December 31, 2017 and 2016

(In thousands of United States dollars, except where noted)

2.	BASIS OF PREPARATION

a)	Statement of compliance

These consolidated financial statements have been prepared in accordance with International Financial Reporting Standards as issued by the International Accounting Standards Board (“IFRS”).

These consolidated financial statements were approved by the Board of Directors and authorized for issue on February 20, 2018.

b)	Basis of measurement

The consolidated financial statements have been prepared using the historical cost basis, except for certain financial assets and liabilities which are measured at fair value, as specified by IFRS for each type of asset, liability, income and expense as set out in the accounting policies below.

c)	Functional currency and presentation currency

The consolidated financial statements are presented in thousands of United States (“US”) dollars, except as otherwise noted, which is the functional currency of the Company and each of the Company’s subsidiaries. References to C$ are to Canadian dollars, which are also stated in thousands.

d)	Judgements

The critical judgements that the Company’s management has made in the application of the accounting policies presented in note 3 that have the most significant effect on the amounts recognized in these consolidated financial statements are as follows:

Functional currency

The functional currency for each of the Company’s subsidiaries is the currency of the primary economic environment in which the respective entity operates; the Company has determined the functional currency of each entity to be the US dollar. Such determination involves certain judgements to identify the primary economic environment. The Company reconsiders the functional currency of its subsidiaries if there is a change in events and/or conditions which determine the primary economic environment.

ii.

Economic recoverability and probability of future economic benefits of exploration, evaluation and development costs

Management has determined that exploratory drilling, evaluation, development and related costs incurred which were capitalized as exploration and evaluation (note 10) have future economic benefits and are economically recoverable. Management uses several criteria in its assessments of economic recoverability and probability of future economic benefit which may include geologic and metallurgic information, history of conversion of mineral deposits to proven and probable reserves, scoping and feasibility studies, accessible facilities, existing permits and life of mine plans.

iii.

Assessment of indicators of impairment and impairment reversal (note 6)

The Company assesses its mineral properties, plant and equipment assets, and exploration and evaluation properties each reporting period to determine whether any indication of impairment or impairment reversal exists. Where an indicator of impairment or impairment reversal exists, a formal estimate of the recoverable amount is made, which is considered to be the higher of the fair value less costs of disposal and value in use.

During the year ended December 31, 2017, a revitalization plan for the San Francisco Mine was finalized. On May 25, 2017, an updated NI 43-101 F1 Technical Report (the “Report”) was completed with an effective date of April 1, 2017.

The Company assessed the Report and updated mine plan for impairment reversal indicators. The Report includes assumptions and estimates that require operational validation including gold recovery and capital project completion. The Company concluded that until significant operational estimates are validated there are no indicators of impairment reversal. The Company will continue to monitor and assess these factors in future periods to determine if and when indicators of an impairment or reversal of impairment are present necessitating a reassessment of the carrying value of the San Francisco Mine.

e)	Significant estimates and assumptions

The preparation of the Company’s consolidated financial statements in conformity with IFRS requires management to make estimates based on assumptions about future events that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period.

The estimates and associated assumptions are based on historical experience and various other factors that are believed to be reasonable under the circumstances, the results of which form the basis of making the judgements about carrying values of assets and liabilities that are not readily apparent from other sources. Actual results could differ from those estimates.

The estimates and underlying assumptions are reviewed on an ongoing basis. Revisions to accounting estimates are recognized prospectively in the period in which the estimate is revised.

Areas that require significant estimates and assumptions as the basis for determining the stated amounts include, but are not limited to, the following:

Mineral reserves

Proven and probable mineral reserves are the economically mineable parts of the Company’s measured and indicated mineral resources demonstrated by at least a preliminary feasibility study.

The Company estimates its proven and probable reserves and measured and indicated and inferred mineral resources based on information compiled by appropriately qualified persons.

The information relating to the geological data on the size, depth and shape of the ore body requires complex geological judgements to interpret the data.

The estimation of future cash flows related to proven and probable reserves is based upon factors such as estimates of foreign exchange rates, commodity prices, future capital requirements and production costs along with geological assumptions and judgements made in estimating the recovery rate, size and grade of the ore body.

Changes in the proven and probable reserves or measured and indicated and inferred mineral resources estimates may impact the carrying value of mineral properties, exploration and evaluation properties and plant and equipment (note 10), site reclamation and closure provisions (note 12), recognition of deferred tax amounts (note 15) and depreciation and depletion (note 10).

ii.

Depreciation and depletion (note 10)

Plants and other facilities used directly in mining activities are depreciated using the units-of-production (“UOP”) method over a period not to exceed the estimated life of the ore body based on recoverable ounces to be mined from proven and probable reserves. Mobile and other equipment are depreciated, net of residual value, on a straight-line basis, over the useful life of the equipment to the extent that the useful life does not exceed the related estimated life of the mine based on proven and probable reserves.

The calculation of the UOP rate, and therefore the annual depreciation and depletion expense could be materially affected by changes in the underlying estimates. Changes in estimates can be the result of actual future production differing from current forecasts of future production, expansion of mineral reserves through exploration activities, differences between estimated and actual recovery rates and costs of mining and differences in gold price used in the estimation of mineral reserves.

Significant judgement is involved in the estimation of useful life and residual values for the computation of depreciation and depletion and no assurance can be given that actual useful lives and residual values will not differ significantly from current assumptions.

iii.

Deferred stripping costs (note 10)

In determining whether stripping costs incurred during the production phase of a mining property relate to reserves and resources that will be mined in a future period and therefore should be capitalized, the Company makes estimates of the stripping activity over the life of the mining property and the life of mining phases. Changes in estimated life of mine strip ratios or life of phase strip ratios can result in a change to the future capitalization of stripping costs incurred and future depreciation and depletion charges.

iv.

Inventories (note 9)

Expenditures incurred, and depreciation and depletion of assets used in mining and processing activities are deferred and accumulated as the cost of ore in process and finished metal inventory. These deferred amounts are carried at the lower of average cost or net realizable value (“NRV”) and are subject to significant measurement uncertainty.

Write-downs of ore in process and finished metal inventory resulting from NRV impairments are reported as a component of current period costs. The primary factors that influence the need to record write-downs include prevailing and long-term metal prices and prevailing costs for production inputs such as labour, fuel and energy, materials and supplies, as well as realized ore grades and actual production levels.

Costs are attributed to ore in process based on current mining costs, including applicable depreciation and depletion relating to mining operations incurred up to the point of placing the ore on the leach pad. Costs are removed from ore in process based on the average cost per estimated recoverable ounce of gold on the leach pad as the gold is recovered. Estimates of recoverable gold on the leach pads are calculated from the quantities of ore placed on the pads, the grade of ore placed on the leach pads and an estimated percentage of recovery. Timing and ultimate recovery of gold contained on leach pads can vary significantly from the estimates.

The quantities of recoverable gold placed on the leach pads are reconciled to the quantities of gold actually recovered (metallurgical balancing), by comparing the grades of ore placed on the leach pads to actual ounces recovered. The nature of the leaching process inherently limits the ability to precisely monitor inventory levels. As a result, the metallurgical balancing process is constantly monitored and the engineering estimates are refined based on actual results over time. The ultimate recovery of gold from a leach pad will not be known until the leaching process is completed.

The allocation of costs to ore in process and finished metal inventory and the determination of NRV involve the use of estimates. There is a high degree of judgement in estimating future costs, future production level, gold prices, and the ultimate estimated recovery for ore in process. There can be no assurance that actual results will not differ significantly from estimates used in the determination of the carrying value of inventories.

Recoverable value of mineral properties, plant and equipment, exploration and evaluation assets (note 6)

Where an indicator of impairment or impairment reversal exists, a formal estimate of the recoverable amount is made, which is considered to be the higher of the fair value less costs of disposal and value in use.

In determining the recoverable amounts of the Company’s mineral properties and plant and equipment assets, management makes estimates of the discounted future cash flows expected to be derived from the Company’s mining properties, costs of disposal of the mining properties and the appropriate discount rate. Reductions or increases in metal price forecasts; estimated future costs of production; estimated future capital expenditures; recoverable reserves, resources, and exploration potential; and economics can result in an impairment or impairment reversal of the carrying amounts of the Company’s property, plant and equipment and/or mining interests.

vi.

Provision for site reclamation and closure (note 12)

Site reclamation and closure provisions are recognized in the period in which they arise and are stated as the present value of estimated future costs taking into account inflation and discounted at a risk free rate. These estimates require extensive judgement about the nature, cost and timing of the work to be completed, and may change with future changes to costs, environmental laws and regulations and remediation practices. In view of uncertainties concerning environmental rehabilitation, the ultimate costs could be materially different from the amounts estimated.

It is possible that the Company’s estimate of the site reclamation and closure liability could change as a result of change in regulations, the extent of environmental remediation required, the means and technology of reclamation activities or cost estimates. Any such changes could materially impact the estimated provision for site reclamation and closure. Changes in estimates are accounted for prospectively from the period the estimate is revised.

vii.

Current and deferred taxes (note 15)

The Company’s provision for income taxes is estimated based on the expected annual effective tax rates (and tax laws) that have been enacted or substantively enacted by the end of the reporting period. The current and deferred components of income taxes are estimated based on forecasted movements in temporary differences. Changes to the expected annual effective tax rate and differences between the actual and expected effective tax rate and between actual and forecasted movements in temporary differences will result in adjustments to the Company’s provision for income taxes in the period changes are made and/or differences are identified.

In assessing the probability of realizing income tax assets recognized, management makes estimates related to expectations of future taxable income, applicable tax planning opportunities, expected timing of reversals of existing temporary differences and the likelihood that tax positions taken will be sustained upon examination by applicable tax authorities. In making its assessments, management gives additional weight to positive and negative evidence that can be objectively verified. Estimates of future taxable income are based on forecasted cash flows from operations and the application of existing tax laws in each jurisdiction. Forecasted cash flows from operations are based on life of mine projections internally developed and reviewed by management. Weight is attached to tax planning opportunities that are within the Company’s control, and are feasible and implementable without significant obstacles.

The likelihood that tax positions taken will be sustained upon examination by applicable tax authorities is assessed based on individual facts and circumstances of the relevant tax position evaluated in light of all available evidence.

Where applicable tax laws and regulations are either unclear or subject to ongoing varying interpretations, it is reasonably possible that changes in these estimates can occur that materially affect the amounts of income tax assets recognized. At the end of each reporting period, the Company reassesses unrecognized income tax assets.

viii.

Share-based payments (note 14(b) and 14(c))

Equity-settled awards

Share-based payments are measured at fair value. Options are measured using the Black-Scholes option pricing model based on estimated fair values of all share-based awards at the date of grant and are expensed to earnings or loss from operations over each award’s vesting period. The Black-Scholes option pricing model utilizes subjective assumptions such as expected price volatility and expected life of the option. Changes in these input assumptions can significantly affect the fair value estimate.

Cash-settled awards

Cash-settled awards are measured at fair value initially using the market value of the underlying shares on the day preceding the date of the grant of the award and are required to be remeasured to fair value at each reporting date until settlement. Performance share units are measured using a Monte Carlo valuation model. The model utilizes assumptions such as the risk-free rate, price volatility and foreign exchange volatility. Changes in these input assumptions can significantly affect the fair value estimate.

ix.

Contingencies (note 21)

Due to the nature of the Company’s operations, various legal and tax matters can arise from time to time. In the event that management’s estimate of the future resolution of these matters changes, the Company will recognize the effects of the changes in its consolidated financial statements for the period in which such changes occur.