Danubian Principalities of Wallachia and Serbia were de facto the first states to recognize each other's diplomatic networks – already by the end of 1830s, as both monarchies strived for formal independence from the Ottoman Empire.
[13][14] Following their recognition as independent states, on 14/26 April 1879 the Romanian diplomatic agency in Belgrade became a legation, having Lascăr Catargiu as its first resident minister.
[19] Both countries share common membership of the Council of Europe, the International Criminal Court, NATO, OSCE, and the World Trade Organization.
[26] In November 2008, Singapore signed an open skies agreement (OSA) with Romania to allow greater flexibility on air services.
[24] The Romanian market, with a relatively cheap and skilled labor force and advantageous tax laws, has been attractive to several Singapore companies who have established joint ventures in Romania.