NOTE 1.

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BASIS OF PRESENTATION

The accompanying unaudited consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q and, in the opinion of Management, include all adjustments that are necessary for the fair statement of Domtar Corporation’s (“the Company”) financial position, results of operations, and cash flows for the interim periods presented. It is suggested that these consolidated financial statements be read in conjunction with the audited consolidated financial statements and the notes thereto included in the Domtar Corporation Annual Report on Form 10-K for the fiscal year ended December 31, 2025, as filed with the Securities and Exchange Commission. The Consolidated Balance Sheet at December 31, 2025, presented for comparative purposes in this interim report, was derived from audited consolidated financial statements, but does not include all disclosures required by accounting principles generally accepted in the United States of America.

The preparation of the Consolidated Financial Statements requires management to make estimates and assumptions with respect to the reported amounts of assets, liabilities, revenue, and expenses and the disclosure of contingent assets and liabilities. Results for the first six months of the year may not necessarily be indicative of full-year results.

Certain reclassifications have been made to the prior year’s presentation to conform to the current year presentation. See Note 15 “Segment Disclosures” for more details.