Your questions about SoFi Hong Kong are answered here

• For Cash Subscriptions:

There are no subscription fees when you apply using your HKD Cash Balance or Buying Power.

• For Financing Subscriptions:

A subscription fee of HKD 100 will be charged for each financing application after the application deadline. Any financing interest will be charged on the allotment date. Please note that these fees are non-refundable, even if you are not allotted any shares.