Canadian Solar Financial and Operational Summary Q1 2022

Large global solar project pipeline of 23.8 GWp across the world TOTAL 25 GWp Plants in Operation 0.8 GWP Plants in Construction 1.1 GWP Backlog 4.2 GWP Pipeline 18.5 GWP 90%+ contracted EMEA MW 4,523 Pipeline MW 277 Backlog MW 15 in Construction MW 0 in Operation Amsterdam Calgary Warsaw London Guelph Milan Toulouse New York City Madrid San Francisco Austin North America Bogotá Mexico City MW 8,228 Pipeline MW 472 Backlog MW 115 in Construction MW O in Operation Latin America MW 3,393 Pipeline MW 2,536 Backlog São Paulo Santiago MW 841 in Construction (2) MW 316 in Operation (2) China (1) MW 1,070 Pipeline MW 550 Backlog MW O in Construction MW 82 in Operation Seoul Beijing Tokyo Suzhou, Shanghai Taipei Hong Kong Kuala Lumpur Singapore Japan MW 72 Pipeline MW 175 Backlog MW 161 in Construction MW 43 in Operation Sydney Melbourne APAC (ex. Japan/China) MW 1,795 Pipeline MW 188 Backlog MW 3 in Construction MW 359 in Operation (2) Global Energy office locations To unlock value in 6.1 GWp(2) of contracted solar projects while continuing to grow our total pipeline Total pipeline as of March 31, 2022. Definitions of backlog/pipeline consistent with industry practice - see next slide. (1) China portfolio is part of Global Energy. (2) Gross project capacity includes aggregate project stakes of c.600 MWp not owned by CSIQ. CanadianSolar MAKE THE DIFFERENCE 22

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