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INVESTMENTS IN AFFILIATES (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Oct. 31, 2021 | Sep. 30, 2021 | Dec. 31, 2020 | Dec. 31, 2015
--- | --- | --- | --- | --- | ---
Other investments |  |  |  |  |
Investments in affiliates | $ 98,819 |  |  | $ 78,291 |
RE Roserock Holdings LLC ("Roserock") |  |  |  |  |
Other investments |  |  |  |  |
Investments in affiliates | $ 18,854 |  |  |  |
Ownership percentage | 20.00% |  |  |  |
RE Crimson Holdings LLC |  |  |  |  |
Other investments |  |  |  |  |
Ownership percentage |  |  | 20.00% |  |
Canadian Solar Infrastructure Fund, Inc |  |  |  |  |
Other investments |  |  |  |  |
Investments in affiliates | $ 12,889 |  |  | $ 19,980 |
Ownership percentage | 14.64% |  |  | 14.66% |
Suzhou Financial Leasing Co., Ltd. |  |  |  |  |
Other investments |  |  |  |  |
Investments in affiliates | $ 27,026 |  |  | $ 23,969 |
Ownership percentage | 4.78% |  |  | 4.78% | 4.78%
Others |  |  |  |  |
Other investments |  |  |  |  |
Investments in affiliates | $ 33,776 |  |  | $ 34,342 |
Others | Minimum |  |  |  |  |
Other investments |  |  |  |  |
Ownership percentage | 20.00% |  |  | 15.00% |
Others | Maximum |  |  |  |  |
Other investments |  |  |  |  |
Ownership percentage | 49.00% |  |  | 49.00% |
JuSheng (Suzhou) Solar Tech Co., Ltd |  |  |  |  |
Other investments |  |  |  |  |
Investments in affiliates | $ 6,274 |  |  |  |
Ownership percentage | 4.55% | 4.55% |  |  |

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