Prof. Dr. Milena Kostović is an expert for Mineral Processing, especially in flotation concentration of sulphide ores of non-ferrous metals, both in the practical industrial application, and through fundamental scientific studies. She has experience in researching related to applying mineral processing procedures and techniques for the valorization and treatment of waste materials (fly ash, metallurgical slag, waste sludge from the iron ore processing, flotation tailings). As author and co-author, she published 115 scientific and professional articles in national monographs, national and international conferences and journals (9 articles in SCI indexed journals). She participated as leader or collaborator in 17 domestic scientific projects and in more than 30 domestic technical studies and mining projects. She was a member of the advisory board of the EU INTMET project (from the HORIZON 2020 programme). She has been and is currently reviewer in several domestic and international (SCI indexed) journals.