EXHIBIT 8.1
LIST OF MAJOR SUBSIDIARIES
| | Place of | | Ownership |
|
Name of entity | | incorporation | | interest |
|
CS PowerTech Inc. | | USA | | 91 | %* |
Mesquite Modules Corporation | | USA | | 91 | %* |
Jeffersonville PVcells Corporation | | USA | | 91 | %* |
CS Power Systems Inc. | | USA | | 91 | %* |
Canadian Solar Energy Storage (USA) Inc. | | USA | | 91 | %* |
Canadian Solar US Renewable Energy Corporation | | USA | | 64 | %** |
Canadian Solar US Module Manufacturing Corporation | | USA | | 64 | %** |
Canadian Solar US Cell Manufacturing Corporation | | USA | | 64 | %** |
Canadian Solar SSES (US) Inc. | | USA | | 64 | %** |
Canadian Solar (USA) Inc. | | USA | | 64 | %** |
Recurrent Energy, LLC | | USA | | 100 | %*** |
Recurrent Energy B.V. | | Netherlands | | 100 | %*** |
Canadian Solar New Energy Holding Company Limited | | Hong Kong | | 100 | %*** |
Canadian Solar UY Holding LATAM | | Uruguay | | 100 | % |
Canadian Solar Brasil I Fundo de Investimento em Participacoes – Multiestrategia | | Brazil | | 100 | % |
Canadian Solar Solutions Inc. | | Canada | | 100 | % |
CSI Solar Co., Ltd. | | PRC | | 64 | % |
CSI Cells Co., Ltd. | | PRC | | 64 | %** |
Canadian Solar Manufacturing (Luoyang) Inc. | | PRC | | 64 | %** |
Canadian Solar Sunenergy (Baotou) Co., Ltd. | | PRC | | 64 | %** |
CSI Solar Technology (Xining) Co., Ltd | | PRC | | 64 | %** |
Canadian Solar Manufacturing (Changshu) Inc. | | PRC | | 64 | %** |
Canadian Solar Sunenergy (Jiaxing) Co. Ltd | | PRC | | 64 | %** |
Canadian Solar Sunenergy (SuQian) Co., Ltd. | | PRC | | 64 | %** |
Canadian Solar International Limited | | Hong Kong | | 64 | %** |
Canadian Solar Manufacturing (Thailand) Co., Ltd. | | Thailand | | 64 | %** |
* | As of December 31, 2025, none of CS PowerTech Inc., Mesquite Modules Corporation, Jeffersonville PVcells Corporation, CS Power Systems Inc., or Canadian Solar Energy Storage (USA) Inc., each of which is an operating entity formed in connection with our U.S. strategic initiative, met the definition of a “significant subsidiary” under Rule 1-02(w) of Regulation S-X. |
** | Significant subsidiaries (as defined in Rule 1-02(w) of Regulation S-X) held through CSI Solar Co., Ltd. in which CSI owned approximately 64% interest as of December 31, 2025. |
*** | BlackRock invested $500.0 million in the Series A preferred shares of Recurrent Energy B.V. which are subject to conversion rights into ordinary shares of Recurrent Energy B.V. |