There is no minimum capital requirement for a Hong Kong company. This is because different companies have various operational needs. For some companies especially those targeting import/export sectors among others, the capital investment could be very high.
Though there is no minimum share capital stipulation, the norm is having a share capital of HKD 200,000. As an investor, you can express the capital in any currency. Remember to ensure that the available capital rhymes well with your business plan for about two years and can cater for all the expenses for the first 6 months.