LUMA Opportunity Highlights

CANADIAN CU UTILITIES LIMITED An ATCO Company PUERTO RICO ELECTRIC T&D SYSTEM OVERVIEW ≫ One of the largest US public utilities serving nearly 1.5 million customers » Puerto Rico Electric Power Authority (PREPA) currently owns and operates the T&D system and generation. facilities. → LUMA will operate the T&D system, while PREPA will continue to operate generation assets. ≫ Network of ~30,000-km of transmission and distribution FLORIDA Puerto Rico Electric Power Authority CUBA lines = HAITI DOMINICAN REPUBLIC LUMA PUERTO RICO INVESTOR PRESENTATION FEBRUARY 2021 28 ATCO CU CANADIAN UTILITIES LIMITED An ATCO Company

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