MERCER INTERNATIONAL INC

The preparation of financial statements and related disclosures in conformity with GAAP requires management to make estimates and assumptions that affect both the amount and the timing of recording of assets, liabilities, revenues and expenses in the consolidated financial statements and accompanying note disclosures. Our management routinely makes judgments and estimates about the effects of matters that are inherently uncertain. As the number of variables and assumptions affecting the probable future resolution of the uncertainties increase, these judgments become even more subjective and complex.

Our significant accounting policies are disclosed in Note 1 to our audited annual consolidated financial statements included in Part IV of this Annual Report. While all of the significant accounting policies are

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important to the consolidated financial statements, some of these policies may be viewed as having a high degree of judgment. On an ongoing basis using currently available information, management reviews its estimates, including those related to accounting for, among other things, future cash flows associated with impairment testing for goodwill and long-lived assets, depreciation and amortization, pension and other post-retirement benefit obligations, deferred income taxes (valuation allowance and permanent reinvestment), the allocation of the purchase price in a business combination to the assets acquired and liabilities assumed, revenues under long-term contracts, inventory impairment, assets and liabilities classified as held for sale and the fair value of disposal groups and legal liabilities and contingencies. Actual results could differ materially from these estimates, and changes in these estimates are recorded when known.

The following accounting policies require management’s most difficult, subjective and complex judgments, and are subject to a fair degree of measurement uncertainty.

Goodwill

Goodwill is evaluated for impairment annually or whenever we identify certain triggering events or circumstances that would more likely than not reduce the fair value of a reporting unit below its carrying value. Application of the goodwill impairment test requires significant judgment, including the identification of reporting units, assignment of assets and liabilities to reporting units, assignment of goodwill to reporting units, and determination of the fair value of each reporting unit. Fair value determinations require considerable judgment and are sensitive to changes in underlying assumptions, estimates, and market factors. The fair value of a reporting unit is estimated primarily through the use of a discounted cash flow model, using market participant assumptions, and requires us to make certain assumptions and estimates regarding industry economic factors and the future profitability of the reporting unit. This analysis requires significant judgments, including estimation of future cash flows, which is dependent on internal forecasts, estimation of the long-term rate of growth for our business, estimation of the useful life over which cash flows will occur, and determination of the discount rate. The estimates used to calculate the fair value of a reporting unit may change from year to year based on operating results, market conditions, and other factors. Changes in these assumptions and estimates could materially affect the determination of fair value and goodwill impairment for each reporting unit.

Goodwill was assigned to the Torgau facility, the reporting unit which benefits from the synergies arising from the business combination. The annual goodwill impairment test conducted as of August 31, 2023, was based on the discounted cash flow methodology. Some of the more significant assumptions inherent in estimating fair value include the prospective cash flows which anticipates the impact of market cyclicality in the next five years and the terminal period, the terminal value growth rate which reflects modest long-term growth, in line with the outlook for inflation, and the selected discount rate based on the weighted average cost of capital which considers the risk and nature of the reporting unit’s cash flows and the rates of return market participants would expect when investing their capital in the reporting unit.

After completing our annual impairment reviews, we concluded that goodwill was not impaired. The fair value of the reporting unit exceeded its carrying value by approximately 6%. The carrying value of goodwill was approximately $35.4 million as of December 31, 2023.

As the fair value of the reporting unit tested is sensitive to market conditions, we will continue to monitor the key assumptions and other factors used in the August 31, 2023, impairment test. It is reasonably possible that changes in key assumptions such as the discount rate, long-term growth rates and forecasted cash flows could occur and as such, result in impairment charges in future periods. For example, a further weakening in the global economy may result in impairment charges in future periods and such charges may be material to our results of operations and financial condition.

Since the annual goodwill impairment test conducted on August 31, 2023, there have been no triggering events or circumstances that would, more likely than not, have reduced the fair value of the reporting unit and no interim goodwill impairment test was required.

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Long-Lived Assets

As of December 31, 2023, we had long-lived assets recorded in our Consolidated Balance Sheet of $1,462.6 million. These long-lived assets include property, plant and equipment, net and amortizable intangible assets, net. In 2023, we recorded depreciation and amortization of $172.5 million and no impairment charges. Depreciation and amortization and impairment charges are based on accounting estimates.

The calculation of depreciation and amortization of long-lived assets requires us to apply judgment in selecting the remaining useful lives of the assets. The remaining useful life of an asset must address both physical and economic considerations. The remaining economic life of a long-lived asset may be shorter than its physical life. The pulp industry has historically been characterized by considerable uncertainty in business conditions. Estimates of future economic conditions for our long-lived assets and therefore, their remaining useful economic life, require considerable judgment.

If our estimate of the remaining useful life changes, such a change is accounted for prospectively in our determination of depreciation and amortization. Actual depreciation and amortization charges for an individual asset may therefore be significantly accelerated if the outlook for its remaining useful life is shortened considerably.

The unit of accounting for impairment testing for long-lived assets is its “Asset Group”, which includes property, plant and equipment, net, amortizable intangible assets, net, and liabilities directly related to those assets. We evaluate an Asset Group for impairment whenever events or changes in circumstances indicate that the carrying value may not be recoverable, such as continuing operating losses. When an indicator that the carrying value of an Asset Group may not be recoverable is triggered, we compare the carrying value of the Asset Group to its forecasted undiscounted future cash flows. If the carrying value of the Asset Group is greater than the undiscounted future cash flows an impairment charge is recorded based on the excess of the Asset Group’s carrying value over its fair value.

Impairment testing for long-lived assets requires us to apply judgment in estimating the future cash flows of the Asset Group. The significant estimates in the future cash flows include periods of operation, projections of product pricing, production levels, fiber and other production costs and maintenance spending. When performing impairment tests, we estimate the fair values of the assets using management’s best assumptions, which we believe would be consistent with the assumptions that a hypothetical marketplace participant would use. Estimates and assumptions used in these tests are evaluated and updated each period an impairment indicator is triggered.

Actual asset impairment losses could vary considerably from estimated impairment losses if actual results are not consistent with the assumptions and judgments used in estimating future cash flows.

Pension and Other Post-Retirement Benefit Obligations

We maintain defined benefit pension plans and an other post-retirement benefit plan for certain employees of our Peace River mill and our Celgar mill which are funded based on actuarial estimates and requirements and are non-contributory. We recognize the net funded status of the plans and we record net periodic benefit costs associated with these net obligations. As of December 31, 2023, we had pension and other post-retirement benefit obligations aggregating $96.5 million and accumulated pension plan assets with a fair value of $88.8 million. Our 2023 net periodic pension and other post-retirement benefit cost was $5.2 million. The amounts recorded for the net pension and other post-retirement obligations include various judgments and uncertainties.

The following inputs are used to determine our net obligations and our net periodic benefit costs each year and the determination of these inputs requires judgment:

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discount rate – used to determine the net present value of our pension and other post-retirement benefit obligations and to determine the interest cost component of our net periodic pension and other post-retirement benefit costs;

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•

return on assets – used to estimate the growth in the value of invested assets that are available to satisfy pension obligations and to determine the expected return on the plan assets component of our net periodic pension costs;

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mortality rate – used to estimate the impact of mortality on pension and other post-retirement benefit obligations;

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rate of compensation increase – used to calculate the impact future pay increases will have on pension benefit obligations; and

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health care cost trend rate – used to calculate the impact of future health care costs on other post-retirement benefit obligations.

For the discount rate, we use the rates available on high-quality corporate bonds with a duration that is expected to match the timing of expected pension and other post-retirement benefit obligations. High-quality corporate bonds are those with a rating of “AA” or better.

In determining the expected return on assets, we consider the historical long-term returns, expected asset mix and the active management premium.

For the mortality rate we use actuarially-determined mortality tables that are consistent with our historical mortality experience and future expectations for mortality of the employees who participate in our pension and other post-retirement benefit plans.

In determining the rate of compensation increase, we review historical compensation increases and promotions, while considering current industry conditions, the terms of collective bargaining agreements with employees and the outlook for the industry.

For the health care cost trend rate, we consider historical trends for these costs, as well as recently enacted health care legislation. We also compare our health care rate to those of our industry.

Variations in assumptions described above could have a significant effect on the pension and other post-retirement benefits, net periodic benefit cost and obligation reported in our consolidated financial statements. For example, a one-percentage point change in any one of the following assumptions would have increased (decreased) our 2023 net periodic benefit cost and our accrued benefit obligation as follows:

Deferred Taxes

As of December 31, 2023, we had $97.3 million in deferred tax liabilities and a $0.7 million deferred tax asset, resulting in a net deferred tax liability of $96.7 million. Our tax assets are net of a $78.7 million valuation allowance. Our deferred tax assets are comprised primarily of tax loss and interest carryforwards and deductible temporary differences, all of which will reduce taxable income in the future. We assess the realization of these deferred tax assets at each reporting period to determine whether it is more likely than not that the deferred tax assets will be realized. Our assessment includes a review of all available positive and negative evidence, including, but not limited to, the following:

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the history of the tax loss carryforwards and their expiry dates;

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future reversals of temporary differences;

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•

our historical and projected earnings; and

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tax planning opportunities.

Significant judgment is required when evaluating the positive and negative evidence, specifically the Company’s estimates of future earnings. The weight given to negative and positive evidence is commensurate with the extent to which it can be objectively verified. Operating results during the most recent three-year period are generally given more weight than expectations of future profitability, which are inherently uncertain. A cumulative loss position during the most recent three-year period is considered significant negative evidence in assessing the realizability of deferred income tax assets that is difficult to overcome.

Once our evaluation of the evidence is complete, if we believe that it is more likely than not that some of the deferred tax assets will not be realized, based on currently available information, an income tax valuation allowance is recorded against the deferred tax assets.

If market conditions improve or tax planning opportunities arise in the future, we may reduce our valuation allowance, resulting in future tax benefits. If market conditions deteriorate in the future, we may increase our valuation allowance, resulting in future tax expenses. Any change in tax laws may change the valuation allowances in future periods.

Business Combination

We allocate the total purchase price of the assets acquired and liabilities assumed based on their estimated fair values as of the business combination date. In developing estimates of fair values for long-lived assets, including identifiable intangible assets, we utilize a variety of inputs including forecasted cash flows, discount rates, estimated replacement costs and depreciation and obsolescence factors. Determining the fair value for specifically identified intangible assets, such as contracts, involves significant judgment. We may refine our estimates and make adjustments to the assets acquired and liabilities assumed over a measurement period, not to exceed one year. Upon the conclusion of the measurement period or the final determination of the values of assets acquired and liabilities assumed, whichever comes first, any subsequent adjustments are charged to earnings. Subsequent actual results of the underlying business activity supporting the specifically identified intangible assets could change, requiring us to record impairment charges or accelerate the remaining useful life.

Revenues Under Long-Term Contracts

We have revenue from long-term contracts which is recognized over the contract term as the work progresses. The timing of revenue recognition involves a judgmental process of estimating costs and profit for the performance obligation. Cost of sales is recognized as incurred. The amount we report as revenues is determined by adding a proportionate amount of the estimated profit to the amount reported as cost of sales. We recognize revenue as costs are incurred as this provides an objective measure of progress and thereby best depicts the extent of transfer of control to the customer. Estimating cost to complete requires us to apply judgment and is largely based on negotiated or estimated purchase contract terms, historical performance trends and other economic projections. Factors that influence these estimates may include inflationary trends, internal and supplier performance, asset utilization, amongst others. Actual costs to complete could vary considerably from the estimated costs to complete and have a significant impact on the revenue we recognize.

Revenue and cost estimates for all significant long-term contract performance obligations are reviewed quarterly. Changes in estimated revenues, cost of sales and the related effect on operating income (loss) are recognized using a cumulative catch-up adjustment which recognizes in the current period the cumulative effect of the changes on current and prior periods based on the contract’s percentage-of-completion.

Inventories

Inventories of raw materials, finished goods and work in progress are valued at the lower of cost, using the weighted-average cost method, or net realizable value and are released from inventory on the same basis.

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Estimating net realizable value requires us to apply judgment and is based on current and expected selling prices in the ordinary course of business, less reasonably predictable costs of completion.

Assets and Liabilities Classified as Held For Sale

Assets (and disposal groups) are classified as held for sale if their carrying amount will be recovered primarily through a sale as opposed to continued use by the Company. The classification of assets (and disposal groups) as held for sale requires us to apply judgment in determining when the held for sale criteria are met, including whether a future sale is probable.

When the held for sale criteria are met, assets or disposal groups are measured at the lower of its carrying amount and fair value less cost to sell. Fair value determinations require considerable judgment and are sensitive to changes in underlying assumptions, estimates, and market factors. The fair value of assets (and disposal groups) held for sale are estimated based on preliminary indicative offers from third parties or through the use of a discounted cash flow model. The estimates used to calculate the fair value of assets (and disposal groups) classified as held for sale may change from period over period based on operating results, market conditions, and other factors. Changes in these assumptions and estimates could materially affect the determination of fair value and if applicable, the preliminary impairment charges recognized.

Contingent Liabilities

We are subject to lawsuits, investigations and other claims related to environmental, product and other matters, and are required to assess the likelihood of any adverse judgments or outcomes to these matters, as well as potential ranges of probable losses. We disclose contingent liabilities when there is a reasonable possibility that an ultimate loss may occur and we record contingent liabilities when it becomes probable that we will have to make payments and the amount of loss can be reasonably estimated.

Assessing probability of loss and estimating probable losses requires analysis of multiple factors, including, but not limited to, the following:

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historical experience;

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judgments about the potential actions of third-party claimants and courts; and

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recommendations of legal counsel.

Contingent liabilities are based on the best information available and actual losses in any future period are inherently uncertain. If estimated probable future losses or actual losses exceed our recorded liability for such claims, we would record additional charges. These exposures and proceedings can be significant and the ultimate negative outcomes could be material to our operating results or liquidity in any given quarter or year.