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RELATED PARTY TRANSACTIONS (Details) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2022
Dec. 31, 2021
ZNTB [Member]    
Office rental paid on behalf of the Group $ 0 $ 189,235
BXDT [Member]    
System Service Fees 618,119 485,190
HZTC [Member]    
System Service Fees $ 0 $ 739,016