You can see the rules and regulations in other jurisdictions.
There are no currency exchange controls in Hong Kong, but the flow of funds in and out of Hong Kong may be prohibited or restricted by laws such as the United Nations (Anti-Terrorism Measures) Ordinance (Cap 575) (UNATMO) and the United Nations Sanctions Ordinance (Cap 537), as well as other relevant laws and regulations. There is no limitation on ownership of companies by foreigners in place in Hong Kong.1
In Hong Kong, there are no laws specifically for securitisation other than in respect of capital treatment and disclosure requirements for 'authorised institutions' as defined in the Banking Ordinance (Cap 155) (e.g., banks).1
Any person or entity operating a money service should apply for an MSO licence from the Commissioner of Customs and Excise pursuant to the AMLO. The term 'money service' includes money changing services and remittance services.1
You can launch your platform by paying $5000 initially and the rest after 6-12 months if your business grows