Mammoth Express Dongdaemun Jonghap Sijangjeom is a cafe at the entrance to Dongdaemun Jonghap Market and the Dakhanmari and saengseon gui alley. It serves large cups of coffee, including lattes, sweetened coffee drinks, and Vietnamese condensed milk coffee. During the morning commute, customers can order ahead through the app for pickup or order at a kiosk. Drinks are served quickly after ordering.