Vistra Group, the Hong Kong-based provider of advisory and administrative support services, has been notified by the Australian Foreign Investment Review Board that the Commonwealth Treasurer has no objection to Vistra acquiring up to 100pct interest in the securities of Mainstream Group Holdings Limited. Vistra entered into a Scheme Implementation Deed with Mainstream in March 2021. Mainstream, an Australia-based administrator, has AuA of c. AUD210bn (USD162bn).