Mizuki Koshimoto

Practice Areas

Mizuki Koshimoto specializes in project and energy business, with a specific emphasis on the renewable energy sector. His comprehensive understanding of this sector positions him as an advisor to a diverse range of clients, including major international sponsors, financial institutions and infrastructure fund operators.

His expertise extends to advising on development, financing, and operation of renewable energy projects, such as battery storage projects, offshore and onshore wind farms, and biomass power plants, areas that are rapidly evolving in Japan. He regularly advises clients on energy project structures, joint ventures, and environmental value trading schemes, as well as issues arising under Japan’s Feed-in Premium regimes.

He is known among clients for his balanced perspective combining technical precision with business-oriented advice, especially in transactions that involve complex interactions among project operators, lenders, and regulators. His work contributes to Japan’s broader policy goals toward carbon neutrality and sustainable infrastructure development.

Career

October 2005 White & Case LLP, Tokyo

September 2010 White & Case LLP, New York

October 2011 Return to White & Case LLP, Tokyo

August 2013 Secondment to The Bank of Tokyo-Mitsubishi UFJ, Ltd.

August 2015 TMI Associates

January 2018 Partner

Professional Memberships

Admitted: Japan, 2005; New York, 2010; B-list of Brussels Bar, 2024

Publications

ESG 2025 - Japan | Global Practice Guides | Chambers and Partners

“Trading of Environmental Attributes: Issues with Tracking and Proposed Revisions”

(Infrato December 20, 2023: https://infrato.jp/25998/2/)

Recent Trends and Law Amendments Regarding Offshore Wind-Power Generation Business

(Infrato March 14, 2020: https://infrato.jp/15754/)

Ports & Terminals Japan

(Lexology - Getting The Deal Through: https://www.lexology.com/panoramic/tool/workareas/report/ports-and-terminals/chapter/japan)

Languages Spoken

Japanese / English

Education

Clients

Mizuki advises a diverse client base across international and domestic. His clients include:

Energy developers participating in renewable energy and infrastructure investments;

Infrastructure funds and institutional investors seeking long-term investments in Japan;

Independent power producers (IPPs) and sponsors entering the Japanese energy market;

He supports numbers of foreign investors entering the Japanese renewable energy market, advising on establishment their presence in Japan, corporate structuring, regulatory licensing, and local compliance matters, as well as expanding overseas through co-investment and partnership models.

Industry Sector Expertise

Renewable Energy Projects (including solar, wind, and biomass projects)

Battery Storage Projects

Project Finance and Structured Finance

Infrastructure and Energy Funds

Foreign Investment Funds

Expert in these Jurisdictions

Japan – extensive experience advising on finance, development, and regulatory matters for battery storage and renewable energy projects.

Cross-border – advising international sponsors and investors on entry and investment structures in Japan’s energy sector