CS PowerTech Earns AA Rating in U.S. Solar Manufacturing Benchmark

KITCHENER, ON, Nov. 13, 2026 /PRNewswire/ -- CS PowerTech Inc., a subsidiary of Canadian Solar Inc. (NASDAQ: CSIQ) and the largest silicon PV solar manufacturer in the U.S., today announced that it has received an AA rating from Terawatt PV Research in its Q3 2026 U.S. Solar Manufacturing report, underscoring the Company's growing domestic manufacturing footprint and commitment to the U.S. solar supply chain.

The AA rating provides independent recognition of CS PowerTech's manufacturing platform and its focus on building a scaled, globally competitive, and resilient domestic solar supply chain. CS PowerTech is one of only three manufacturers, out of 22 evaluated, to receive a rating of AA or higher. The report assessed manufacturers based on their U.S. production output and capital expenditure.

Finlay Colville, founder of Terawatt PV Research and co-host of the recent Solar Manufacturing USA 2026 event in Austin Texas, said, "Canadian Solar's AA rating in the Q3 2026 release of the Solar Manufacturing USA Quarterly report reflects the company's significant investments in new solar cell and module facilities in Indiana and Texas."

Rusty Schmit, President of CS PowerTech Inc., added, "We're building a U.S. manufacturing platform designed to compete for the long term, and this AA rating is an important recognition of our progress. Our strategy is straightforward: invest in advanced, reliable technology and build the domestic manufacturing capabilities our customers need. I'm proud of what our team has accomplished in Texas and Indiana and eager to build on our momentum."

The recognition comes at an important time for the U.S. solar industry, as customers, developers, financial institutions, and other stakeholders increasingly look beyond manufacturing capacity alone, placing greater emphasis on the quality, resilience, and long-term credibility of their manufacturing partners.

About CS PowerTech Inc.

CS PowerTech is one of the largest North American PV manufacturers and energy storage solutions providers, offering complete turnkey solutions for solar and energy storage. The company is a subsidiary of Canadian Solar Inc. (NASDAQ: CSIQ) and operates U.S.-based manufacturing and sales operations for solar modules and solar cells in Mesquite, Texas, and Jeffersonville, Indiana, respectively. CS PowerTech is focused on building a cohesive and scalable U.S. manufacturing and sales ecosystem that employs more than 3,000 Americans, supports local communities, accelerates clean energy adoption, and reinforces long-term American energy leadership and independence.

About Canadian Solar Inc.

Canadian Solar is one of the world's largest solar technology and renewable energy companies. Founded in 2001 and headquartered in Kitchener, Ontario, the Company is a leading manufacturer of solar photovoltaic modules; provider of solar energy and battery energy storage solutions; and developer, owner, and operator of utility-scale solar power and battery energy storage projects. Over the past 25 years, Canadian Solar has successfully delivered nearly 180 GW of premium-quality solar photovoltaic modules to customers across the world. Through its energy storage solutions business e-STORAGE, Canadian Solar has shipped over 23 GWh of battery energy storage solutions to global markets and had a contracted backlog of $3.5 billion as of June 30, 2026. Since entering the project development business in 2010, Canadian Solar has developed, built, and connected approximately 12.4 GWp of solar power projects and 6.4 GWh of battery energy storage projects globally. Its geographically diversified project development pipeline includes approximately 22 GWp of solar and 84 GWh of battery energy storage capacity in various stages of development. Canadian Solar is one of the most bankable companies in the solar and renewable energy industry, having been publicly listed on the NASDAQ since 2006. For additional information about the Company, follow Canadian Solar on LinkedIn or visit www.canadiansolar.com.

Safe Harbor/Forward-Looking Statements 

Certain statements in this press release, including those regarding the Company's expected future shipment volumes, revenues, gross margins, and project sales, are forward-looking statements that involve a number of risks and uncertainties that could cause actual results to differ materially. These statements are made under the "Safe Harbor" provisions of the U.S. Private Securities Litigation Reform Act of 1995. In some cases, you can identify forward-looking statements by such terms as "may," "will," "expect," "anticipate," "future," "ongoing," "continue," "intend," "plan," "potential," "prospect," "guidance," "believe," "estimate," "is/are likely to," or similar expressions, the negative of these terms, or other comparable terminology. These forward-looking statements include, among other things, our expectations regarding global electricity demand and the adoption of solar and battery energy storage technologies; our growth strategies, future business performance, and financial condition; our transition to a long-term owner and operator of clean energy assets and expansion of project pipelines; our ability to monetize project portfolios, manage supply chain fluctuations, and respond to economic factors such as inflation and interest rates; our outlook on government incentives, trade measures, regulatory developments, and geopolitical risks; our expectations for project timelines, costs, and returns; competitive dynamics in solar and storage markets; our ability to execute supply chain, manufacturing, and operational initiatives; access to capital, debt obligations, and covenant compliance; relationships with key suppliers and customers; technological advancement and product quality; and risks related to intellectual property, litigation, and compliance with environmental and sustainability regulations. Other risks are described in the Company's filings with the Securities and Exchange Commission, including its annual report on Form 20-F filed on April 10, 2026. Although the Company believes that the expectations reflected in the forward-looking statements are reasonable, it cannot guarantee future results, level of activity, performance, or achievements. Investors should not place undue reliance on these forward-looking statements. All information provided in this press release is as of today's date, unless otherwise stated, and Canadian Solar undertakes no duty to update such information, except as required under applicable law.

Canadian Solar Inc. Investor Relations Contact
Wina Huang
Investor Relations
Canadian Solar Inc.
investor@canadiansolar.com