Canadian Solar files 6-K; owns ~64% of CSI Solar

Q: Which subsidiary’s report is included in CSIQ’s 6-K?

The report is for CSI Solar Co., Ltd., Canadian Solar’s majority-owned subsidiary.

Q: How much of CSI Solar does Canadian Solar own (CSIQ)?

Canadian Solar currently owns approximately 64% of CSI Solar.

Q: What period does the included report cover for CSI Solar?

It covers the third quarter of 2025.

Q: Where can I find the English translation of the report?

It is provided as Exhibit 99.1 to the Form 6-K.

Filing Impact

(Neutral)

Filing Sentiment

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Sentiment and the balance of points

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Form Type

6-K

Rhea-AI Filing Summary

Canadian Solar Inc. furnished a Form 6-K to provide investors with an English translation of the 2025 Third Quarter Report of its majority-owned subsidiary, CSI Solar Co., Ltd.

CSI Solar is listed on the Shanghai Stock Exchange’s Sci-Tech Innovation Board, and Canadian Solar currently owns approximately 64% of CSI Solar. The report is included as Exhibit 99.1.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did CSIQ file on Form 6-K?

It furnished an English translation of CSI Solar Co., Ltd.’s 2025 Third Quarter Report as Exhibit 99.1.

Which subsidiary’s report is included in CSIQ’s 6-K?

The report is for CSI Solar Co., Ltd., Canadian Solar’s majority-owned subsidiary.

On which exchange is CSI Solar listed?

CSI Solar is listed on the Shanghai Stock Exchange’s Sci-Tech Innovation Board.

How much of CSI Solar does Canadian Solar own (CSIQ)?

Canadian Solar currently owns approximately 64% of CSI Solar.

What period does the included report cover for CSI Solar?

It covers the third quarter of 2025.

Where can I find the English translation of the report?

It is provided as Exhibit 99.1 to the Form 6-K.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 10/30/2025 - 09:20 AM EDT

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER
PURSUANT TO RULE 13a-16 OR 15d-16 UNDER
THE SECURITIES EXCHANGE ACT OF 1934

For the month of October 2025

Commission File Number: 001-33107

CANADIAN SOLAR INC.

4273 King Street East, Suite 102

Kitchener, Ontario, N2P 2E9

Canada

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F x        Form 40-F ¨

CANADIAN SOLAR INC.

Form 6-K

TABLE OF CONTENTS

Explanatory Note

Signature

Exhibit Index

Exhibit 99.1

Explanatory Note

CSI Solar Co., Ltd. (“CSI Solar”), a majority-owned subsidiary of Canadian Solar Inc. (“Canadian Solar”) with its shares listed on the Shanghai Stock Exchange (“SSE”)’s Sci-Tech Innovation Board, has filed with the SSE its report regarding the third quarter of 2025 (the “2025 Third Quarter Report”). Currently, Canadian Solar owns approximately 64% of CSI Solar.

Exhibit 99.1 provides an English translation of the 2025 Third Quarter Report of CSI Solar.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	CANADIAN SOLAR INC.

	By:	/s/ Shawn (Xiaohua) Qu
	Name:	Shawn (Xiaohua) Qu
	Title:	Chairman and Chief Executive Officer

Date: October 30, 2025

EXHIBIT INDEX

Exhibit 99.1 — CSI Solar Co., Ltd. 2025 Third Quarter Report

Source: View Original Filing on SEC EDGAR