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Appendix 1 - Major Subsidiaries of CSI (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($)
Major Subsidiaries of CSI
Amount of Restricted Net Assets for Consolidated and Unconsolidated Subsidiaries	$ 411,882
CSI Solartronics (Changshu) Co., Ltd
Major Subsidiaries of CSI
Attributable Equity Interest Held (as a percent)	100.00%
CSI Solar Technologies Inc.
Major Subsidiaries of CSI
Attributable Equity Interest Held (as a percent)	100.00%
CSI New Energy Holding Co., Ltd.
Major Subsidiaries of CSI
Attributable Equity Interest Held (as a percent)	100.00%
Canadian Solar Manufacturing (Luoyang) Inc.
Major Subsidiaries of CSI
Attributable Equity Interest Held (as a percent)	100.00%
Canadian Solar Manufacturing (Changshu) Inc.
Major Subsidiaries of CSI
Attributable Equity Interest Held (as a percent)	100.00%
CSI Cells Co., Ltd.
Major Subsidiaries of CSI
Attributable Equity Interest Held (as a percent)	100.00%
Canadian Solar (USA) Inc.
Major Subsidiaries of CSI
Attributable Equity Interest Held (as a percent)	100.00%
Canadian Solar Japan K.K.
Major Subsidiaries of CSI
Attributable Equity Interest Held (as a percent)	100.00%
Canadian Solar Solutions Inc.
Major Subsidiaries of CSI
Attributable Equity Interest Held (as a percent)	100.00%
CSI Solar Power Group Co., Ltd. (formerly named/known as "CSI Solar Power (China) Inc.")
Major Subsidiaries of CSI
Attributable Equity Interest Held (as a percent)	100.00%
Canadian Solar EMEA GmbH
Major Subsidiaries of CSI
Attributable Equity Interest Held (as a percent)	100.00%
Canadian Solar (Australia) Pty Limited
Major Subsidiaries of CSI
Attributable Equity Interest Held (as a percent)	100.00%
Canadian Solar International Limited
Major Subsidiaries of CSI
Attributable Equity Interest Held (as a percent)	100.00%
Canadian Solar O and M (Ontario) Inc.
Major Subsidiaries of CSI
Attributable Equity Interest Held (as a percent)	100.00%
Suzhou Sanysolar Materials Technology Co., Ltd.
Major Subsidiaries of CSI
Attributable Equity Interest Held (as a percent)	75.324%
Canadian Solar South East Asia Pte. Ltd.
Major Subsidiaries of CSI
Attributable Equity Interest Held (as a percent)	100.00%
Canadian Solar South Africa Pty., Ltd.
Major Subsidiaries of CSI
Attributable Equity Interest Held (as a percent)	100.00%
Canadian Solar Brazil Commerce, Import and Export of Solar Panels Ltd.
Major Subsidiaries of CSI
Attributable Equity Interest Held (as a percent)	100.00%
Canadian Solar Middle East Limited
Major Subsidiaries of CSI
Attributable Equity Interest Held (as a percent)	100.00%
Canadian Solar Construction (USA) LLC
Major Subsidiaries of CSI
Attributable Equity Interest Held (as a percent)	100.00%
Canadian Solar Project K.K.
Major Subsidiaries of CSI
Attributable Equity Interest Held (as a percent)	100.00%
CSI-GCL Solar Manufacturing (Yancheng) Co., Ltd.
Major Subsidiaries of CSI
Attributable Equity Interest Held (as a percent)	80.00%
Canadian Solar UK Ltd.
Major Subsidiaries of CSI
Attributable Equity Interest Held (as a percent)	100.00%
Canadian Solar UK Projects Ltd.
Major Subsidiaries of CSI
Attributable Equity Interest Held (as a percent)	100.00%
Changsu Tegu New Material Technology Co., Ltd.
Major Subsidiaries of CSI
Attributable Equity Interest Held (as a percent)	75.00%
Changshu Tlian Co., Ltd.
Major Subsidiaries of CSI
Attributable Equity Interest Held (as a percent)	100.00%
Canadian Solar Trading (Changshu) Inc.
Major Subsidiaries of CSI
Attributable Equity Interest Held (as a percent)	100.00%
Recurrent Energy, LLC
Major Subsidiaries of CSI
Attributable Equity Interest Held (as a percent)	100.00%
PT. Canadian Solar Indonesia
Major Subsidiaries of CSI
Attributable Equity Interest Held (as a percent)	67.00%
Canadian Solar Manufacturing Vietnam Co., Ltd
Major Subsidiaries of CSI
Attributable Equity Interest Held (as a percent)	100.00%
Canadian Solar Energy Private Limited
Major Subsidiaries of CSI
Attributable Equity Interest Held (as a percent)	100.00%
Canadian Solar Australia 1 Pty Ltd
Major Subsidiaries of CSI
Attributable Equity Interest Held (as a percent)	100.00%
Canadian Solar Manufacturing (Thailand) Co., Ltd.
Major Subsidiaries of CSI
Attributable Equity Interest Held (as a percent)	99.99992%
Canadian Solar Sunenergy (Suzhou) Co., Ltd.
Major Subsidiaries of CSI
Attributable Equity Interest Held (as a percent)	100.00%
Canadian Solar Energy Holding Singapore 1 Pte. Ltd.
Major Subsidiaries of CSI
Attributable Equity Interest Held (as a percent)	100.00%
Canadian Solar Sunenergy (Baotou) Co., Ltd.
Major Subsidiaries of CSI
Attributable Equity Interest Held (as a percent)	100.00%

X

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Amount of restricted net assets of consolidated and unconsolidated subsidiaries as of the end of the most recently completed fiscal year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(e)(3)(ii))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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