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Harumi Hata

Harumi Hata



  • Corporate Law
  • Japan Practice

WSG Practice Industries


California, U.S.A.


Harumi Hata’s practice involves the representation of multinational companies, including U.S., European and Pacific Rim/Asian clients, in business structuring and advice, corporate and commercial transactions, including mergers and acquisitions, financing arrangements, and real estate acquisitions and dispositions.

Ms. Hata advises clients with respect to strategic alliances, internal company management and operations, and business affairs. She also advises business clients in connection with the expansion of their operations and the establishment and management of subsidiaries and affiliates in the U.S. and abroad, including structuring and tax planning coordination and advice with respect to cross-border operations and business activities.

Ms. Hata serves many of her clients as outside counsel as their in-house and general counsel, working closely with clients, being involved on day-to-day business affairs, operations and objectives and providing strategic advice.

Ms. Hata has represented regulated entities, including insurance companies and insurance holding companies, and Fortune Global 500 companies in connection with the acquisition and disposition of assets and companies in the U.S. and abroad and the regulatory aspects relating to such transactions.

Ms. Hata is fluent in Japanese and has a thorough understanding of Japanese business practices and protocol. Ms. Hata represents Japan-based clients in the U.S., as well as non-Japan based clients in connection with their investments and business transactions in Japan. Ms. Hata also represents high networth individuals and families with respect to the assets, including real estate assets, held in the U.S.


  • U.S.-Japan Council, Council Leader (2018-Present)
  • The State Bar of California International Law Section, Executive Committee (2010-2018) and Officer (Immediate Past Chair, 2016-2017; Chair, 2015-2016; Vice Chair, 2014-2015; Secretary, 2013-2014)
  • California Lawyers Association International Law Section, Executive Committee (2018-Present)
  • California Lawyers Association Business Law Section
  • American Bar Association (ABA)
  • American Bar Association (ABA) Business Law Section
  • American Bar Association (ABA) Section of International Law
  • Los Angeles County Bar Association (LACBA)
  • Los Angeles County Bar Association (LACBA) Board of Trustees (July 2014-June 2016; July 2011-June 2013)
  • Los Angeles County Bar Association (LACBA) Audit Committee (July 2011-June 2016), Large Law Firm Committee (Chair, 2010-2011), and Non-Dues Revenue Committee (2010)
  • Los Angeles County Bar Association (LACBA) Business Law Section (formerly, Business and Corporations Law Section), Executive Committee (2003-Present), Executive Committee Officer (Chair, 2011-2012), and Executive Committee’s Pro Bono and Community Affairs Subcommittee (Chair, 2005-2011)
  • Los Angeles County Bar Association (LACBA) International Law Section
  • Japanese American Bar Association (JABA)
  • Japanese American Bar Association (JABA) Board of Governors (2015-Present) and Vice President (2016-Present)
  • Japan America Society of Southern California (JAS-SC)
  • Japan Business Association of Southern California (JBA)
  • Loyola Law School, Board of Directors (formerly, Board of Overseers) (2008-2019)
  • Ramona Convent Secondary School, Board of Trustees (2011-2019)
  • World Trade Center Los Angeles, Board of Advisors (2018-Present)

Bar Admissions

  • California


  • Loyola Law School
  • Loyola Marymount University
Areas of Practice

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WSG's members are independent firms and are not affiliated in the joint practice of professional services. Each member exercises its own individual judgments on all client matters.

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