DUNKIN’ DONUTS ANNOUNCES FRANCHISE AGREEMENT WITH SSP GROUP TO DEVELOP RESTAURANTS AT TRAIN STATIONS IN DENMARK CANTON, Mass. (March 31, 2015) – Dunkin’ Donuts, one of the world’s leading coffee and baked goods chains, today announced that it has signed a franchise agreement with SSP Group, a leading operator of food and beverage brands in travel locations... March 31, 2015 Dunkin'