Professor Dr. A. Metaxas is Managing Partner of the law firm Metaxas & Associates (M&A). M&A is a leading law firm with a dominant presence in the legal market especially in the fields of its core specialization, in particular energy, business law and EU law issues. Prof. Metaxas is Chairman of the Board of the Hellenic State Aid Institute (HSAI, www.stateaid.gr) and of the Hellenic Energy Regulation Institute (HERI – www.energy-regulation.eu). Prof. Metaxas teaches EU law in the University of Athens as well as acts as visiting Professor in various distinguished universities in Greece and abroad. He is regarded as most leading professional and academic in Europe in his field by all independent international Legal Directories (Chambers, Legal 500) and acts as senior legal advisor to a number of governments, regulatory authorities as well as major private and institutional clients. He is author of numerous scientific publications in the fields of EU, EU state aid and Energy law.