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Share capital and additional paidin capital (Details Narrative)
 12 Months Ended
Dec. 31, 2023
CNY (¥)
$ / shares
shares
Dec. 31, 2023
CNY (¥)
shares
Jun. 30, 2010
shares
Statement [Line Items]      
Common Stock, Shares Issued | shares     20,000
Common Stock, Par Value | $ / shares $ 0.00005    
March 1, 2018 [Member] | Ordinary Shares [Member]      
Statement [Line Items]      
Common Stock, Shares Issued | shares 2,000,000,000 2,000,000,000  
Common Stock, Par Value | $ / shares $ 0.00005    
Dividend | ¥   ¥ 100,000  
Ordinary Shares Two [Member] | March 1, 2018 [Member]      
Statement [Line Items]      
Common Stock, Shares Issued | shares 1,000,000,000 1,000,000,000  
Common Stock, Par Value | $ / shares $ 0.00005    
Common Stock, Increased Value | ¥ $ 50,000 ¥ 50,000  
Ordinary Shares One [Member] | March 1, 2018 [Member]      
Statement [Line Items]      
Common Stock, Shares Issued | shares 1,000,000,000 1,000,000,000  
Common Stock, Par Value | $ / shares $ 0.00005