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Significant accounting policies (Tables)

12 Months Ended

Dec. 31, 2022

Significant accounting policies

Schedule of estimated useful lives of property and equipment


		–		Properties leased for own use		Over the unexpired lease period

		–		Office equipment leased for own use		Over the unexpired lease period

		–		Leasehold improvements		Shorter period of the lease term or the useful life

		–		Fixtures and furniture		3 - 5 years

		–		Office and lab equipment		3 - 5 years

		–		Computer equipment		3 years

		–		Motor vehicles		3 - 5 years

		–		Manufacturing equipment		3 - 5 years

Schedule of estimated useful lives of intangible assets


– Website and mobile apps		2 years
– Trademark and technology		10 - 20 years
– Products development cost		3 years
– Computer software		3 years
– Customer relationship		10 years