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Cash and cash equivalents (Tables)
 12 Months Ended
Dec. 31, 2024
Notes and other explanatory information [abstract]  
Schedule of cash and cash equivalents

Schedule of cash and cash equivalents 

   2024   2024   2023 
   US$   HK$   HK$ 
             
Savings accounts   7,015,781    54,496,479    44,409,500 
Current accounts   7,998,688    62,131,411    50,464,311 
Time deposit   -    -    50,000,000 
Cash on hand   91,162    708,120    1,339,933 
                
    15,105,631    117,336,010    146,213,744