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In 1988, Allen & Overy was one of the first international law firms to establish an office in Tokyo. For over 30 years, the Allen & Overy Tokyo office has provided comprehensive legal services to a wide range of corporate clients (both domestic and international), banks, financial institutions, trading companies and energy companies.

The Tokyo practice specializes in the following major areas: Corporate and M&A, Projects, Energy, Natural Resources and Infrastructure (PENRI) and Banking & Finance.

Our longstanding history in this market, combined with our extensive network of offices worldwide, with both international and Japanese law capability and bilingual lawyers, means we are often the first port of call for companies seeking assistance, whether it be on their inbound or outbound transactions.


Our experience



Hitachi, Ltd. on its USD1.425 billion acquisition of JR Automation from Crestview Partners.

Asahi Group Holdings, Inc on its acquisition of five eastern European beer brands from Anheuser-Busch InBev for USD7.8bn.

NTT Communications Corporationon on its acquisition of a majority stake in the e-shelter group, a European marketleader in the construction and management of data centres.

MS&AD Insurance Group Holdings, Inc. on (i) its acquisition of a minority stake (GBP800m) in ReAssure Jersey One Limited, a closed-book life insurer and a subsidiary of Swiss Re group; and (ii) on its acquisition of a minority stake (AUSD500m) in Challenger Limited, an Australian financial services company.

Projects and energy

Projects and energy

Jawa-1 Gas-fired power plant

The Lenders in relation to the development, construction and operation of the 1760MW Jawa-1 Gas-fired power plant in Indonesia – Asia’s first LNG-to-power project and one of the largest LNG-powered plants in Southeast Asia.

Project Finance Deal of the Year – IFLR Asia-Pacific Awards 2019

Project Finance Deal of the Year – IFLR Asia Awards 2019

Power Deal of the Year – PFI Awards 2018 

Asia-Pacific Power-Gas deal of the year – IJGlobal Asia Pacific Awards 2018


Coral FLNG

A consortium of Asian lenders in relation to the project finance and development of a floating liquefied natural gas (FLNG) facility in Mozambique. This is the first-ever project financing of a floating LNG vessel (FLNG); the first LNG project in Mozambique; and the financing was the largest project financing in African history at the time.

Midstream Oil & Gas Deal of the Year, IJ Global 2018

ECA-backed Energy Deal of the Year, TXF 2018


Tsetii wind farm

EBRD and JICA on the financing to develop, construct and operate the 50MW Tsetsii wind farm project in Tsogtsetsii soum, Umnugobi aimag, Mongolia.

A consortium on its bid for the Fukuoka International airport privatisation project.


Our offices


News & insights

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News: 21 JANUARY 2022

A&O advises on market-first TONA-linked Samurai loan

A&O has advised Mizuho Bank, Ltd., MUFG Bank, Ltd., and SMBC Bank International plc as Joint Active Bookrunners & Mandated Lead Arrangers and a syndicate of 11 additional Asian investors in connection…

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Wind turbines

Blog Post: 16 NOVEMBER 2021

Japan's new energy strategy: Reflections on COP

The Japanese government announced its latest energy strategy, the 6th Strategic Energy Plan (the New Energy Strategy), a couple of weeks ahead of COP26. In the first in our Reflections on COP series,…

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News: 10 NOVEMBER 2021

Allen & Overy, partner of the Paris Peace Forum, to participate in the creation of enhanced international cooperation

Allen & Overy, an international business law firm, has been a partner of the Paris Peace Forum since its creation. The 4th edition is organised from 11 to 13 November 2021. This hybrid edition, which…

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Publications: 19 AUGUST 2021

JCAA Rules Update: Expanded scope for expedited procedure and new Appointing Authority Rules

The Japan Commercial Arbitration Association (JCAA) has updated its rules relating to expedited procedure and published new Appointing Authority Rules with effect from 1 July 2021.

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Recognised as a Tier 1 Corporate and M&A practice by Asia Pacific Legal 500, 2018, we advise on mergers, acquisitions, joint ventures, disposals and general commercial and regulatory matters for a range of clients.