Strategic Provider of End-to-End Automation Solutions

TM Appendix: Reconciliation of Non-IFRS Measures to IFRS Measures The following table reconciles organic revenue to the most directly comparable IFRS measure (revenue) (in millions of dollars): (C$ mm) ■ATS F2018 F2019 F2020 F2021 F2022 F2023 Organic revenue 1,100.1 1,230.5 1,327.1 1,388.0 1,721.9 2,382.1 Revenues of acquired companies 12.8 111.5 25.3 521.7 201.7 FX impact 14.8 10.3 (8.9) 16.7 (60.9) (6.4) Total revenue 1,114.9 1,253.6 1,429.7 1,430.0 2,182.7 2,577.4 Annual organic revenue growth 10.4% 5.9% (2.9)% 20.4% 9.2% 22 22

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