2011
- The delegation of the Ministry of the Environment and Spatial Planning of Portugal, led by Minister Ms. Dulse Pasaro visited the City of Nis. During their visit to Serbia the delegation also talked with the Belgrade and Novi Sad city authorities, and it is planned to sign a Memorandum of Understanding between the Ministry of Environment and Spatial Planning of the Republic of Serbia and the Ministry of Environment and Spatial Planning of Portugal, which will set goals, areas and modalities of future cooperation. The representatives of the City of Nis presented the capacities of the City of Nis and the activities carried out in the field of water supply, wastewater treatment, solid waste management and spatial planning, as well as the results of cooperation with Parque Expo so far.
2010
- Upon the initiative of the Embassy of Portugal in Serbia the City of Nis started cooperation with Parque Expo, a renowned Portuguese state-owned company, with which representatives of the City and public companies jointly developed three basic project ideas for further cooperation: the 1700th anniversary of the Edict of Milan, the revitalization and spatial planning and construction on the Pantelej barracks site and urban revitalization of the area following the removal of the railway from the city center.