Investor Presentation

Reconciliation of Non-IFRS Financial Measures Reconciliation of Net Earnings to Adjusted EBITDA Three-month periods (In thousands of dollars, except for margins) ended March 31 2023 2022 Net Earnings Income tax expense Net financing charges Depreciation of property, plant and equipment Depreciation of right-of-use assets Amortization of intangible assets 9,497 6,302 3,404 2,084 1,470 443 1,547 1,250 1,346 1,084 1,193 908 EBITDA 18,457 12,071 Acquisition costs related to business combinations 191 12 Restructuring expenses 126 Value adjustment on acquired inventory through a business combination 67 Adjusted EBITDA 18,841 12,083 Adjusted EBITDA Margin (%) 21.3% 19.1% 51

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