Canadian Solar Financial and Operational Summary Q1 2022

Guidance as of May 24, 2022 Module Q1 2022 Actual Q2 2022 Guidance FY2021 Actual FY2022 Guidance 2021-22E yoy A% C. +45% Shipments* 3.63 GW 4.9 - 5.1 GW 14.5 GW 20 - 22 GW Battery Storage 290 MWh 600 MWh+ 896 MWh - Shipments 1.8 1.9 GWh C. +100% Project Sales n/a n/a 2.1 GW 2.1 - 2.6 GW C. +10% Revenue $1.25 bn - $2.2 bn $2.3 bn $5.3 bn - $7.0 bn $7.5 bn C. +35% Gross Margin 14.5% 14.5% - 15.5% 17.2% n/a n/a Shipment guidance going forward based on total shipments recognized as revenues by CSI Solar, which includes both 3rd party and Global Energy shipments. Global Energy shipments are then eliminated on the "Elimination" line until the project is sold to a 3rd party Expect significant growth in Q2 and FY2022; Q2 growth driven by higher module and battery storage shipments, and project sales Q2 gross margin continued to be impacted by higher material costs; partially offset by lower transportation costs in opex CanadianSolar MAKE THE DIFFERENCE 6

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