DFS Group opens duty-free stores at Singapore Cruise Centre’s Tanah Merah and HarbourFront terminals   After winning a five-year concession for departure and arrival stores, DFS officially opens at Singapore Cruise Centre’s Tanah Merah and HarbourFront terminals SINGAPORE, 2017-Aug-02 — /EPR Retail News/ — DFS Group, the world’s leading luxury travel retailer, today unveiled its updated duty-free stores…