Mai Muto

Norton Rose Fulbright LLP

Mai Muto

Mai Muto



Mai Muto is an antitrust and competition lawyer based in Brussels. She joined the firm as a senior associate in 2020, having worked in a major US law firm in Brussels since 2010. Mai is a Japan-qualified lawyer and a member of the bar in both Tokyo and Brussels.

She focuses her practice on European competition law matters, including cartels, merger control, and abuse of dominance. She represents clients in global cartel investigations, cartel damages negotiations, and merger control reviews. Mai counsels multinational companies on distribution issues, licencing arrangements, and antitrust compliance matters. She also regularly advises clients on data protection matters, such as data transfer mechanisms and GDPR applicability, as well as other EU law issues. 

Mai is a regular author for the Japanese Institute of International Business Law, contributing articles on all aspects of European Competition law, from key developments to the latest case studies. 

Prior to starting her legal career in Brussels, she worked in the services sector in Japan and in a Tokyo law firm.

Mai is a Japanese native speaker and speaks fluent English and French.

Professional experience

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Master of European Law (LLM), College of Europe

Social Psychology (Bachelor of Arts), University of Tokyo

  • Registered at the Daiichi Tokyo Bar, Japan
  • Registered at the Brussels Bar
  • "EU Competition policy contributing to the EU Green Deal", Internaiontal Business Law Executive Summary, No. 42, the Japanese Institute of International Business Law, December 2020.
  • "2020 EU Competition Law Review", Shojihomu Portal, SH3449, Shojihomu Co. Ltd., January 2021.
  • "EU Proposal for Digital Markets Act", Shojihomu Portal, SH3481, Shojihomu Co. Ltd., February 2021.
  • English
  • Japanese
  • French


Japan: Competition law fact sheet

Publication | June 10, 2021