[Canadian Solar Receives CAD$104 Million Non-Recourse Construction Loan from Deutsche Bank The loan facility is intended to support the simultaneous construction of 3 solar power plants, totalling 30 MWac. Developed by Canadian Solar, the projects are expected to be built and connected through 2014. All of the projects have been awarded a 20-year power purchase contract (the “FIT Contract”) by] [FORM 6-K CANADIAN SOLAR INC. No. 199 Lushan Road Suzhou New District Suzhou, Jiangsu 215129 People’s Republic of China Form 20-F x Form 40-F o o o CANADIAN SOLAR INC. Form 6-K TABLE OF CONTENTS]

[Canadian Solar Announces the Sale of Two Utility Scale Solar Power Plants GUELPH, Ontario and TORONTO, October 3, 2013 — Canadian Solar Inc. (NASDAQ: CSIQ) (the “Company”, or “Canadian Solar”), one of the world’s largest solar power companies, today announced that its subsidiary, Canadian Solar Solutions Inc., entered into an agreement with a fund managed by BlackRock (“BlackRock”), whereby BlackRock] [FORM 6-K CANADIAN SOLAR INC. No. 199 Lushan Road Suzhou New District Suzhou, Jiangsu 215129 People’s Republic of China Form 20-F x Form 40-F o o o CANADIAN SOLAR INC. Form 6-K TABLE OF CONTENTS 3 4]

[Canadian Solar Completes the Sale of Two Solar Power Plants to TransCanada GUELPH, Ontario, October 2, 2013 — Canadian Solar Inc. (the “Company”, or “Canadian Solar”) (NASDAQ: CSIQ), one of the world’s largest solar power companies, today announced that its wholly owned subsidiary, Canadian Solar Solutions Inc., has completed the sale of two solar power plants, Brockville 2 and Burritts] [FORM 6-K CANADIAN SOLAR INC. No. 199 Lushan Road Suzhou New District Suzhou, Jiangsu 215129 People’s Republic of China Form 20-F x Form 40-F o o o CANADIAN SOLAR INC. Form 6-K TABLE OF CONTENTS]

[Canadian Solar Announces Completion of At-The-Market Offering of Common Shares GUELPH, Ontario, September 11, 2013 — Canadian Solar Inc. (NASDAQ: CSIQ) (the “Company”, or “Canadian Solar”), one of the world’s largest solar power companies, today announced the completion of the Company’s at-the-market offering of common shares previously announced on August 15, 2013. Upon the completion of the offering, the Company] [FORM 6-K CANADIAN SOLAR INC. No. 199 Lushan Road Suzhou New District Suzhou, Jiangsu 215129 People’s Republic of China Form 20-F x Form 40-F o o o CANADIAN SOLAR INC. Form 6-K TABLE OF CONTENTS]