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Share capital and additional paidin capital (Details Narrative) - CNY (¥)
 12 Months Ended
Dec. 31, 2021
Jun. 30, 2010
Statement [Line Items]    
Common Stock, Shares Issued   20,000
Common Stock, Par Value 0.00005  
Ordinary Shares Two [Member] | March 1, 2018 [Member]    
Statement [Line Items]    
Common Stock, Shares Issued 1,000,000,000  
Common Stock, Par Value 0.00005  
Common Stock, Increased Value ¥ 50,000  
Ordinary Shares One [Member] | March 1, 2018 [Member]    
Statement [Line Items]    
Common Stock, Shares Issued 1,000,000,000  
Common Stock, Par Value 0.00005  
Ordinary Shares [Member] | March 1, 2018 [Member]    
Statement [Line Items]    
Common Stock, Shares Issued 2,000,000,000  
Common Stock, Par Value 0.00005  
Common Stock, Increased Value ¥ 100,000