Tags PSG Listed companies post big losses Saturday, Nov 23, 2013 Viet Nam''s listed firms had posted accumulated losses of over VND10.8 trillion (US$509.4 million) as of September 30, according to financial information website vietstock.vn. Cushman&Wakefield acquires PSG Thursday, Jun 27, 2013 Cushman & Wakefield announced yesterday that it would acquire Singapore-based project management specialist company, the Project Solution Group (PSG).