[Canadian Solar Announces Selective Preliminary Results for the Fourth Quarter 2013, Schedules Earnings Conference Call for March 5 GUELPH, Ontario, February 11, 2014 — Canadian Solar Inc. (the “Company”, or “Canadian Solar”) (NASDAQ: CSIQ), one of the world’s largest solar power companies, today announced selective preliminary results for the fourth quarter ended on December 31, 2013. For the fourth quarter] [Unless otherwise indicated or unless the context otherwise requires, the “Company” refers to Canadian Solar Inc., a Canadian company, its predecessor entities and its subsidiaries. “China” or “PRC” refers to the People’s Republic of China, excluding Taiwan and the special administrative regions of Hong Kong and Macau. About Canadian Solar Inc. Canadian Solar Inc. is one of the world’s largest] [CANADIAN SOLAR INC. INDEX TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS Use these links to rapidly review the document CANADIAN SOLAR INC. Unaudited Condensed Consolidated Balance Sheets as of December 31, 2012 and September 30, 2013 F-2 Unaudited Condensed Consolidated Statements of Operations for the Nine Months Ended September 30, 2012 and 2013 F-4 Unaudited Condensed Consolidated Statements of Comprehensive Income] [FORM 6-K CANADIAN SOLAR INC. No. 199 Lushan Road ý o Form 20-F o o CANADIAN SOLAR INC. Form 6-K TABLE OF CONTENTS 3]