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Schedule of income tax (Details) | 12 Months Ended
--- | ---
Dec. 31, 2024 USD ($) | Dec. 31, 2024 HKD ($) | Dec. 31, 2023 HKD ($) | Dec. 31, 2022 HKD ($)
Notes and other explanatory information [abstract] |  |  |  |
- current year provision | $ 968,491 | $ 7,522,946 | $ 6,407,506 | $ 6,113,619
- prior year (over)/under provision | (1,278) | (9,923) | (1,049) | 48,364
Current tax - Taiwan | 743 | 5,775 |  | 29,431
Total current tax | 967,956 | 7,518,798 | 6,406,457 | 6,191,414
Deferred tax (Note 14) | (618,598) | (4,805,091) | 1,251,531 | (1,811,065)
Total tax expenses for the year | $ 349,358 | $ 2,713,707 | $ 7,657,988 | $ 4,380,349

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