Capital Markets Overview

Q3 2021 Financial Results Results in Q3 2020 included net benefit from the Canada Emergency Wage Subsidy ("CEWS") program of $69 million $ Millions (except per share amounts) Three Months Ended September 30 Trailing Twelve Months Ended September 30 2021 2020 Change+ 2021 2020 Change+ Revenue 1,163 1,040 ▲ 12% 3,966 3,484 ▲ 14% Gross Profit 123.3 162.2 ▼ 24% 396.5 381.1 4% Gross Margin %& 10.6% 15.6% $500 bps 10.0% 10.9% 90 bps Adjusted EBITDAⓇ 95.5 137.2 ▼ 30% 261.3 242.4 8% Adjusted EBITDA Margin %* 8.2% 13.2% 500 bps 6.6% 7.0% 40 bps Operating Profit 63.7 106.8 ▼ 40% 141.7 127.5 11% Profit 38.4 73.6 48% 69.6 76.2 9% Earnings per share - diluted 0.56 0.99 ▼ 43% 1.07 1.14 6% New Awards 682 448 ▲ 52% 3,345 3,591 7% BacklogⓇ 6,043 6,664 9% 6,043 6,664 9% ACCON +bps basis point This is a non-GAAP financial measure. Refer to Section 4 "Non-GAAP And Supplementary Financial Measures" in the Company's Q3 2021 MD&A. *This is a non-GAAP financial ratio. Refer to Section 4 "Non-GAAP And Supplementary Financial Measures" in the Company's Q3 2021 MD&A. & This is a supplementary financial measure. Refer to Section 4 "Non-GAAP And Supplementary Financial Measures" in the Company's Q3 2021 MD&A. 12

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