EU

AMT occupies a unique position in the Japanese legal market: we can provide genuine EU law advice and support a broad range of cross-border matters in Europe for Japanese and Asian companies. For nearly two decades, the firm has had a UK-qualified partner with long experience advising on EU and EU competition law from Brussels and London, including a year at the European Commission’s DG COMP. In addition, many of our Japan-qualified lawyers have studied in Europe and worked at leading law firms – often within their EU law departments – in Brussels, London, Paris, Frankfurt and Madrid. Over many decades, we have also built close working relationship with European firms and regularly hosts their lawyers to complement our EU practice. The need for EU law continues to grow significantly with the Japan-EU Economic Partnership Agreement and increasing trade between two of the world's largest economies. As corporations and investors face a tightening global regulatory environment for cross-border operations and investments, demand is rising for sophisticated advice from practitioners versed in both European and Japanese law. Reflecting that demand, after opening our London office in September 2022, we launched our Brussels office in April 2024 and our Paris office in March 2026. Working seamlessly with our Tokyo and European offices, we now advise on M&A, compliance and regulation including competition and tech regulation, IP, and contentious matters that involve EU law and, more broadly, business between Europe and Japan.

Office Information

Brussels
Overview
Our Brussels office was established in April 2024 to support our clients on a wide range of legal areas – such as M&A and other cross-border investments, competition law, European regulations – in collaboration with local European law firms. Our Brussels office also serves as the European contact point for inbound deals into Japan while cooperating with local European firms to quickly and efficiently provide high quality legal services across a wide range of fields. Its main services include the following areas: ・M&A transactions ・Joint ventures ・Venture investment and emerging growth ・Incorporation, restructuring or liquidation of a company in Japan ・Regulatory advice including competition law, tech regulation and investment-related regulation ・Banking and finance ・Dispute resolution ・Compliance at regional locations ・Financial transactions ・Labour, intellectual property rights, etc.
PROFESSIONALS
REPRESENTATIVE
Ko Hanamizu
KoHanamizu
Tokyo
Brussels
Partner
Hanamizu Ko
Ko Hanamizu has been engaged in a broad range of matters at Anderson Mori & Tomotsune since he joined the firm in 2002. He focuses on a variety of corporate matters including corporate finance and structured finance. Mr. Hanamizu also advises regarding financial regulations such as the Financial Instruments and Exchange Law.
Ko Hanamizu has been engaged in a broad range of matters at Anderson Mori & Tomotsune since he joined the firm in 2002. He focuses on a variety of corporate matters including corporate finance and structured finance. Mr. Hanamizu also advises regarding financial regulations such as the Financial Instruments and Exchange Law.
PROFESSIONALS
Ko Hanamizu
KoHanamizu
Hanamizu Ko
Ko Hanamizu has been engaged in a broad range of matters at Anderson Mori & Tomotsune since he joined the firm in 2002. He focuses on a variety of corporate matters including corporate finance and structured finance. Mr. Hanamizu also advises regarding financial regulations such as the Financial Instruments and Exchange Law.
Ko Hanamizu has been engaged in a broad range of matters at Anderson Mori & Tomotsune since he joined the firm in 2002. He focuses on a variety of corporate matters including corporate finance and structured finance. Mr. Hanamizu also advises regarding financial regulations such as the Financial Instruments and Exchange Law.
Ryoichi Kaneko
RyoichiKaneko
Kaneko Ryoichi
Ryoichi Kaneko has extensive experience in M&A, private equity, and emerging growth/venture capital, and also advises on merger control and foreign direct investment (FDI) regulations. Ryoichi’s professional experience includes stints with the Corporate/M&A and Competition Law departments at top law firms in London, Brussels and Madrid. Besides the depth and breadth of his experience, Ryoichi is also particularly noted for his ability to provide clear, practical and highly effective bilingual advice to international clients on cross-border transactions involving Japan.
Ryoichi Kaneko has extensive experience in M&A, private equity, and emerging growth/venture capital, and also advises on merger control and foreign direct investment (FDI) regulations. Ryoichi’s professional experience includes stints with the Corporate/M&A and Competition Law departments at top law firms in London, Brussels and Madrid. Besides the depth and breadth of his experience, Ryoichi is also particularly noted for his ability to provide clear, practical and highly effective bilingual advice to international clients on cross-border transactions involving Japan.
Paris
Overview
Our Paris office was established in March 2026 as an associated office with MTS Law Office, founded in Paris by Manami Toyota Sirvent. Paris has long served as a strategic hub for business expansion in Europe and, in recent years, has played a central role in shaping one of the world’s leading startup ecosystems. Against this backdrop, our Paris office provides clients seeking to expand their business in Europe with high-quality, timely support, offering integrated coverage across Japanese, French, and EU law. Our principal areas of practice include: ・Establishment, restructuring, and exit of local subsidiaries and operations of Japanese companies ・M&A and joint venture transactions ・Venture capital and new business investment ・Financial transactions ・Dispute resolution ・Labor and employment matters
PROFESSIONALS
Representative
ManamiToyota Sirvent
Tokyo
Paris
Special Counsel
Toyota Sirvent Manami
Manami Toyota Sirvent is a Special Counsel handling cross-border matters between Japan and Europe, primarily France, including M&A, joint ventures, investments, complex commercial contracts and financial transactions for clients seeking to establish and expand their business operations in Europe.
Manami Toyota Sirvent is a Special Counsel handling cross-border matters between Japan and Europe, primarily France, including M&A, joint ventures, investments, complex commercial contracts and financial transactions for clients seeking to establish and expand their business operations in Europe.
PROFESSIONALS
ManamiToyota Sirvent
Toyota Sirvent Manami
Manami Toyota Sirvent is a Special Counsel handling cross-border matters between Japan and Europe, primarily France, including M&A, joint ventures, investments, complex commercial contracts and financial transactions for clients seeking to establish and expand their business operations in Europe.
Manami Toyota Sirvent is a Special Counsel handling cross-border matters between Japan and Europe, primarily France, including M&A, joint ventures, investments, complex commercial contracts and financial transactions for clients seeking to establish and expand their business operations in Europe.
Desk Members
Vassili Moussis
VassiliMoussis
Tokyo
Partner
Moussis Vassili
Vassili Moussis is an English qualified lawyer who is registered to practise law in Japan. His practice focuses on EU and international competition law with a particular emphasis on inbound and outbound merger control and international cartel matters. He is also advising on a wide range of issues including energy related issues, distribution arrangements, intellectual property and other commercial matters, which often have an international dimension. Vassili is recognized in the Hall of Fame of competition lawyers in Japan by Legal 500 Asia-Pacific and as a Leading Individual for antitrust and competition law in Japan by Chambers Asia-Pacific for over 10 years now. Clients have praised him for his expertise in international competition cases as well as "his technical knowledge, commercial awareness, effectiveness and client service" as well as for being "a great bridge between Japan and the rest of the world", Legal 500 Asia-Pacific 2025 and Chambers, Asia-Pacific 2020 and 2021.
Vassili Moussis is an English qualified lawyer who is registered to practise law in Japan. His practice focuses on EU and international competition law with a particular emphasis on inbound and outbound merger control and international cartel matters. He is also advising on a wide range of issues including energy related issues, distribution arrangements, intellectual property and other commercial matters, which often have an international dimension. Vassili is recognized in the Hall of Fame of competition lawyers in Japan by Legal 500 Asia-Pacific and as a Leading Individual for antitrust and competition law in Japan by Chambers Asia-Pacific for over 10 years now. Clients have praised him for his expertise in international competition cases as well as "his technical knowledge, commercial awareness, effectiveness and client service" as well as for being "a great bridge between Japan and the rest of the world", Legal 500 Asia-Pacific 2025 and Chambers, Asia-Pacific 2020 and 2021.
Atsutoshi Maeda
AtsutoshiMaeda
London
Tokyo
Partner
Maeda Atsutoshi
Atsutoshi Maeda is a partner at Anderson Mori & Tomotsune who has been engaged in an extensive range of legal matters. In particular, he has provided general corporate advice on issues regarding various commercial laws, employment laws and compliance problems, as well as negotiated contracts in a broad range of industries and tackled disputes for domestic and overseas clients. Given the unique nature of Japanese business culture and legal and contract frameworks that are distinct from western practices, Mr. Maeda always clarifies what non-Japanese clients can expect and should not expect from contract negotiation, semi-contentious discussions, employment issues and/or with the handling of transactions. As such, for international clients, he always aims to demystify Japanese law and local market practice.
Atsutoshi Maeda is a partner at Anderson Mori & Tomotsune who has been engaged in an extensive range of legal matters. In particular, he has provided general corporate advice on issues regarding various commercial laws, employment laws and compliance problems, as well as negotiated contracts in a broad range of industries and tackled disputes for domestic and overseas clients. Given the unique nature of Japanese business culture and legal and contract frameworks that are distinct from western practices, Mr. Maeda always clarifies what non-Japanese clients can expect and should not expect from contract negotiation, semi-contentious discussions, employment issues and/or with the handling of transactions. As such, for international clients, he always aims to demystify Japanese law and local market practice.
Ko Hanamizu
KoHanamizu
Tokyo
Brussels
Partner
Hanamizu Ko
Ko Hanamizu has been engaged in a broad range of matters at Anderson Mori & Tomotsune since he joined the firm in 2002. He focuses on a variety of corporate matters including corporate finance and structured finance. Mr. Hanamizu also advises regarding financial regulations such as the Financial Instruments and Exchange Law.
Ko Hanamizu has been engaged in a broad range of matters at Anderson Mori & Tomotsune since he joined the firm in 2002. He focuses on a variety of corporate matters including corporate finance and structured finance. Mr. Hanamizu also advises regarding financial regulations such as the Financial Instruments and Exchange Law.
Ryoichi Kaneko
RyoichiKaneko
London
Brussels
Tokyo
Partner
Kaneko Ryoichi
Ryoichi Kaneko has extensive experience in M&A, private equity, and emerging growth/venture capital, and also advises on merger control and foreign direct investment (FDI) regulations. Ryoichi’s professional experience includes stints with the Corporate/M&A and Competition Law departments at top law firms in London, Brussels and Madrid. Besides the depth and breadth of his experience, Ryoichi is also particularly noted for his ability to provide clear, practical and highly effective bilingual advice to international clients on cross-border transactions involving Japan.
Ryoichi Kaneko has extensive experience in M&A, private equity, and emerging growth/venture capital, and also advises on merger control and foreign direct investment (FDI) regulations. Ryoichi’s professional experience includes stints with the Corporate/M&A and Competition Law departments at top law firms in London, Brussels and Madrid. Besides the depth and breadth of his experience, Ryoichi is also particularly noted for his ability to provide clear, practical and highly effective bilingual advice to international clients on cross-border transactions involving Japan.
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