Investor Presentation

Reconciliation of Non-IFRS Financial Measures Reconciliation of Net Earnings to Adjusted EBITDA LTM Q1-23 2022 2021 2020 2019 2018 (In thousands of dollars, except for margins) Revenue Net Earnings 297,619 272,467 226,430 204,604 191,669 195,087 31,631 28,436 15,752 7,495 7,088 (4,793) Income tax expense 10,977 9,657 5,301 2,789 3,057 4,075 Net financing charges 3,597 2,571 2,226 3,073 3,435 1,841 Depreciation of property, plant and equipment 6,096 5,799 5,314 5,442 4,837 4,295 Depreciation of right-of-use assets 4,792 4,529 4,830 5,091 4,697 Amortization of intangible assets 4,047 3,762 3,381 3,356 2,193 2,088 EBITDA EBITDA (%) 61,140 54,754 36,804 27,246 25,307 7,506 20.5% 20.1% 16.3% 13.3% 13.2% 3.8% 1,536 Asset Impairment Restructuring expense (recovery) New facility start-up costs Expense for contingent remuneration related to business combinations Acquisition costs related to business combinations 729 550 164 97 58 Value adjustment on acquired inventory through a business combination Adjusted EBITDA Adjusted EBITDA Margin (%) 194 127 555 63,599 56,841 39,042 32,504 25,241 26,818 21.4% 20.9% 17.2% 15.9% 13.2% 13.7% 53 2,074 2,770 16,137 1,410 1,836 (124) 1,219 333 1,623

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