Canadian Solar

• Net revenues of $328.7 million for 2Q10, compared to net revenues of $336.9 million for 1Q10.
• Shipments of 181.2 MW for 2Q10, compared to shipments of 185.0 MW for 1Q10.
• Gross margin of 13.6% for 2Q10, compared to gross margin of 12.4% for 1Q10.
• Net income of $0.07 per diluted share for 2Q10, compared to $0.03 per diluted share for 1Q10.

Canadian Solar Inc

Canadian Solar, one of the world's largest solar companies, and Blue-Tech Srl, an experienced Italian company working in the renewable energy and photovoltaic solar sectors, have announced the completion of four new solar projects in Northern Italy: two residential rooftop installations in Sirmione (BS) and Cremona (CR), and two industrial plants, both in the Municipality of Siziano (PV).

The Company previously released its 4Q09 unaudited financial results in its press release dated March 3, 2010 and subsequently disclosed in its press release dated June 1, 2010 that it may revise such numbers. This release supersedes the March 3, 2010 release. The 4Q09 results disclosed herein are referred to as "revised" results.

1Q10 Highlights

Teams to Cover 16 Countries in 80 days Highlighting Environment, Energy Efficiency and Reliability

Canadian Solar Inc., one of the world's largest solar companies, today announced its sponsorship of a one a kind, zero-emission, electric car race. The extraordinary car race will start today at the Square of Nations in Geneva and cover Europe, Asia, and North America. Four teams, will have 80 days to cover 30,000 kilometers across 16 countries in their zero-emission, electric cars.

Canadian Solar Inc. (Nasdaq: CSIQ), one of the world's largest solar companies, is announcing the location and the next steps to establishing a new solar module manufacturing facility in Ontario, Canada at a media conference being held this morning. The facility, located at 545 Speedvale Avenue, West in Guelph, Ontario, Canada, is expected to be ready to commence production early next year, and will be one of the largest solar panel module manufacturing plants in North America. The facility is being developed by Canadian Solar Solutions Inc.

For the Second Consecutive Year, the Canadian Solar Module Producer Will Be the Main Sponsor of the Bologna Basketball Team Called "Canadian Solar Virtus"

Canadian Solar, one of the world's largest solar companies, today announced the renewal of the sponsorship agreement for the second consecutive year with Virtus Pallacanestro, called Canadian Solar Virtus, one of the most important basketball clubs in Italy and Europe.

Canadian Solar (Nasdaq: CSIQ), one of the world's largest solar companies, today announced the opening of its Italian sales office in Rome. The office will be headed by Marco Di Pietro, Country Manager Italy, who is responsible for the continued success and growth of Canadian Solar's photovoltaic business in Italy. Customers can find out about the latest product information and reach sales and customer support using a toll-free service number.

1 MW Solar System Established in Haertensdorf, Germany

Canadian Solar Inc. (Nasdaq: CSIQ), one of the world's largest solar companies, and Green City Energy, the alternative energy provider, have jointly installed a 1 MW solar system in the city of Haertensdorf, Germany. The system, located in sunny Saxony, was completed before June 30. Interested private investors can get involved in the scope of the current Solar Deutschland 2010 fund available at Green City Energy.

Leading Solar Manufacturer Will Exhibit New Modules and Present Educational Session on Environmentally-Friendly Manufacturing and Materials

Home-Away-From-Home for Families in San Diego with Hospitalized Children Celebrates One-Year Anniversary with Solar Electric System