Prof. Konstantinos Komnitsas, Dr. Mining and Metallurgical Engineer, NTUA, with expertise in hydrometallurgy, has participated (as a coordinator or partner) in more than 60 research projects funded from national and private sources as well as the European Commission. He was national representative for the Horizontal Configuration of the 6th Framework Program “Integrating the European Research Area” (FP6) and International Cooperation of the 7th Framework Program (FP7). He is national expert in the Horizon 2020 Societal Challenge “Climate action, environment, resource efficiency and raw materials”. He frequently evaluates research proposals for the EC, the Greek Ministry of Education, the General Secretariat for Research and Technology, the Cyprus Ministry of Technology, as well as international organizations (US NSF, Czech Republic, Georgia, Italy, Kazakhstan, Latvia, Montenegro, Poland, Russia, Romania, and Serbia Science Foundations). He also participates in Greek and international faculty and doctoral theses examination committees. He is a member of the editorial board of 3 international journals (2 Elsevier, 1 Taylor & Francis). He has published more than 100 papers in peer reviewed international journals and more than 150 papers in international conference proceedings.