Singaporean billionaire Robert Ng is stepping down as chairman of Sino Group’s Hong Kong-listed property firms, passing the torch to Daryl Ng, his eldest son and a third-generation member of the group’s founding family.Singaporean billionaire Robert Ng is stepping down as chairman of Sino Group’s Hong Kong-listed property firms, passing the torch to Daryl Ng, his eldest son and a third-generation member of the group’s founding family. VnExpress English