Pošta Srbije
Pošta Srbije () is the national postal service of Serbia, with the headquarters in Belgrade. Public postal service was first introduced in Serbia in 1840. The first stamp was printed in 1866. In 1874 it founded the Universal Postal Union together with 21 other countries. Ownership, structure and equity capital. By the Act on Communication System, the Public Enterprise of PTT Saobraćaja "Srbija" was established in 1990 as the company for performance of postal activities, with assets in state ownership. In May 1997, by the modifications and amendments to the Act on Communication Systems, the enterprise was organized as  holding company, consisting of the PE of PTT Saobraćaja "Srbija" and its subsidiary companies. The enterprise is the parent company in the holding system. In the same year, the subsidiary company for provision of telecommunication services: Telecommunications company Telekom Srbija was established. Public Enterprise of "Pošta Srbije" is one of the founders in the following companies: Telecommunications company Telekom Srbija and bank Poštanska štedionica. Capacities. The operational network of the PE of PTT communications "Srbija" is the largest infrastructure and logistic network in the country, engaging the following functional capacities for the performance of the postal activities: Pošta Srbije Pošta