EMS (Express Mail Service) is an international postal Express Mail Service for documents and commodities provided by postal operators of the Universal Postal Union (UPU), which connects 175 countries and territories across the world. They have priority express service, which means that EMS takes precedence over all other postal services. Based on Post Office counters, the EMS worldwide network has the most customer access points in the world. The world's largest delivery network - EMS postal operators have the world's largest last-mile coverage, which is backed up by the postal delivery network, allowing them to reach every business and resident on the planet.