LUMA Opportunity Highlights

ATCO TRACK RECORD OF EARNINGS $365 million in 2019 Canadian Utilities 2016 Alberta wildfires Long track record of earnings growth through various global macro-economic cycles 2015 GCOC decision and global commodity price declines 2013 Calgary Floods 33 93 95 97 40 2008-2009 Financial crisis Long track record of earnings growth through various regulatory and macro-economic cycles 2016 Alberta wildfires 2015 GCOC decision and global commodity price declines 2013 Calgary Floods 2008-2009 Financial crisis $608 million in 2019 1980-85 NEP 99 01 03 05 07 09 11 13 15 17 19 80 82 84 86 88 90 92 94 96 98 00 02 50 04 06 08 10 12 14 16 18 19 INVESTOR PRESENTATION FEBRUARY 2021 7 * In June 1980 ATCO acquired a majority interest in Canadian Utilities CANADIAN ATCO CUTILITIES LIMITED An ATCO Company

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