Summary of significant accounting policies (Tables)

3 Months Ended

Mar. 31, 2024

Accounting Policies [Abstract]

Exchange rate used for the translation

US$ to RMB	Period End		Average
March 31, 2024		7.2265		7.1511
December 31, 2023		7.10700		N/A
March 31, 2023		6.8689		6.8423

US$ to HKD	Period End		Average
March 31, 2024		7.8255		7.8202
December 31, 2023		7.81005		N/A
March 31, 2023		7.85		7.8392

Schedule of property and equipment useful life

Leasehold improvements	2 years
Office furniture and equipment	3 years

Schedule of intangible assets

Intellectual Property License 5 years