The seminar took place in Demänová on 8th -10th February 2010.During the seminar following problems were discussed: Different concepts and international frames of Gen IV, Sodium, gas and molten salt concept, Strategies of fuel cycle, Thorium Fuel cycle management, Industrial and economical aspects of Gen IV, European R&D program and SNETP – Sustainable Nuclear European Technology Platform and Strategy of implementation of generation IV in the Slovak fleet.