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Statutory reserve (Details Narrative) - PRC [Member] - CNY (¥)
¥ in Millions
Dec. 31, 2022
Dec. 31, 2021
Statement [Line Items]    
Profits After Taxation, Percentage 10.00%  
Total Statutory Reserve ¥ 18.7 ¥ 18.7
Variable Interest Entity 50.00%  
Reserve Balance 50.00%