To be eligible, you must have substantial assets* and be willing to invest in South Australia. This visa does not lead to permanent residency however it can be renewed for additional four-year terms providing the state and Department of Home Affairs requirements are met.
*This visa is for applicants with net assets of at least AUD $530,000, (AUD $550,000 if you have a partner) and receive a combined annual income of at least AUD $50,000.