The reception was organized at the City Hall as an introduction to the SIMTERM 2019 – the International Conference on Thermal Science and Engineering of Serbia under the patronage of the Ministry of Education, Science and Technological Development of the Republic of Serbia organized by Department of Thermal Engineering of the Faculty of Mechanical Engineering in Niš and the Society of Thermal Engineers of Serbia with the support of the City of Nis and City Municipality Crveni Krst. The experts from this field participating in the conference were received by Mayor Darko Bulatovic. They discussed energy, sustainable development and the measures that the City of Nis was implementing to make Nis an eco-friendly city. SIMTERM 2019 gathered researchers, engineers, experts, representatives of local and central government and companies from Serbia and abroad, interested in the exchange of scientific and practical information and experience from the thematic fields of Energy – Efficiency – Ecology – Economy. The delegation was led by Prof. Dr. Mirjana Lakovic Paunovic, President of the Organizing Committee of this Scientific Conference.