Jiří Marek is consultant in the field of nuclear energy and related activities, and Executive Head & Partner of consulting company JMM CS Ltd. He received his M.Sc. degree from the Czech Technical University, Faculty of Technical and Nuclear Physics, where he also completed post-gradual studies in nuclear power industry. His professional career started in research; further he worked in the nuclear power field since 1974 (until 1996 in ČEZ). For the last more than thirty years, he acted as the advisor of the Minister of Industry and Trade (with responsibility for activities supporting Temelín NPP completion), Chairman and Vice-Chairman of the Supervisory Board of ČEZ, a member of supervisory boards in several energy distribution companies and an advisor of a few Deputy Ministers of Finance. In his positions connected with state administration he was dealing with the reorganization of state administration in power industry, the development of state energy policy, the implementation of three-pillar system of radioactive waste disposal, the establishment of the State Office for Nuclear Safety and with the preparation of the privatization of Czech power industry. In his professional carieer he also managed a number of R&D projects concerning of the evaluation of the impact of nuclear energy on environment (radiological aspects, management of radioactive waste etc. From the 2015 year he is acting as President of the Association of Nuclears Veterans (CZ), the group associates most of the top professionals they dedicated their whole professional career to nuclear energy.