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SUBSEQUENT EVENTS - Compensation Committee (Details) - Subsequent event | Feb. 28, 2022 USD ($) shares
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Subsequent Event [Line Items] |
Fair value of shares issued | $ | $ 1,694,000
Class B ordinary shares | Yin Shenping [Member] |
Subsequent Event [Line Items] |
Number of shares issued | 800,000
Class B ordinary shares | Chen Guangqiang [Member] |
Subsequent Event [Line Items] |
Number of shares issued | 1,600,000

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