How long does it take to get a SAR passport if you invest in emigrating to Hong Kong?

Investment immigrants, during the seven-year period of non-permanent resident status, only hold China passports or original nationality passports. Non-Hong Kong Kong Di (Document of Identity for Visa, only applicable to mainland one-way permit holders and stateless persons who come to Hong Kong within 7 years)

You can apply for permanent residence after seven years, and then you can apply for a SAR passport. You can only apply if you apply to give up all your identity and passport in your country of origin.