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TAXATION - Summary Deferred tax Liabilities (Details) - Deferred Tax Liabilities [Member] - CNY (¥) ¥ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Deferred Tax Liabilities, Net [Abstract] |  |
Gain or loss from changes in fair values | ¥ 2,572 | ¥ 2,684
Others | 648 | 135
Total deferred tax liabilities | ¥ 3,220 | ¥ 2,819

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