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Warren H. Maruyama

Washington, D.C.

Warren H. Maruyama

Warren Maruyama focuses his international trade practice on assisting clients in dealing with cutting-edge trade policy challenges, including the Trump Administration's efforts to renegotiate NAFTA and negotiate bilateral trade agreements, and its threats to impose higher duties on U.S. companies and U.S. trading partners, as well as efforts by U.S. and multinational firms to use U.S. trade policy mechanisms and WTO disputes to address unfair market access barriers.

Warren has assisted clients in successful efforts to address market access barriers in U.S. and foreign free trade agreements (FTAs), such as the Trans-Pacific Partnership (TPP), Trans-Atlantic Trade and Investment Partnership, Brexit, China's WTO accession, and the U.S.-Korea and U.S.-Australia FTAs. He has been selected as an arbitrator for the U.S.-Korea and U.S.-Central America-Dominican Republic Free Trade Agreements.

Warren is recognized for his strategic vision, ability to develop sophisticated, innovative solutions to trade challenges, and insider's knowledge of U.S. trade law and the U.S. trade policy process. From 2007 to 2009, he served as USTR General Counsel, overseeing WTO dispute settlement challenges to foreign trade barriers, Doha Round dumping negotiations, and USTR's participation in the U.S.-China Strategic Economic Dialogue and U.S.-China Joint Commission on Commerce and Trade. He negotiated the so-called "May 10" agreement between the Bush Administration and Congressional Democrats to resolve a decade-long impasse over the role of labor and environmental protections in U.S. FTAs, which cleared the way for approval of President Bush's FTAs.

Warren served on the White House policy staff from 1989-1992, and helped develop President George H.W. Bush's NAFTA, Uruguay Round, Super 301, and Steel Trade Liberalization initiatives. He was an Associate General Counsel at the USTR from 1983-1989, where he successfully litigated GATT and U.S.-Canada FTA disputes, and served as the lead U.S. negotiator for the Uruguay Round Subsidies and Countervailing Measures (SCM) negotiations.

Representative experience

Handled successful selection, preparation, litigation, and defense of WTO, U.S.-Canada FTA, and GATT disputes.

Advised PhRMA during the negotiation of new chapters in U.S.-Australia and U.S.-Korea FTAs regarding limits on pharmaceutical price controls.

Represented U.S. steel-consuming manufacturers in opposing U.S. steel import safeguards and securing their early termination by Bush Administration.

Education and admissions


  • J.D., cum laude, Cornell Law School, 1980
  • B.A., cum laude, Carleton College, 1976


  • Appointee, Korea-U.S. Free Trade Agreement, 2014
  • Board of Directors, National Council of La Raza, 2004-2006
  • Co-chair, American Bar Association/ Georgetown Law School Symposium on the World Trade Organization, 2000-Present
  • Co-coach, Takoma Tsunami, MSI Classic Soccer League, Girls Select Team, 2001-2007
  • Member, Board of Governors, Japanese-American National Museum

Bar admissions and qualifications

  • District of Columbia
  • Minnesota

Court admissions

  • U.S. Court of Appeals, Federal Circuit
  • U.S. Court of International Trade


International Trade: Trade Remedies & Trade Policy (USA)

Chambers Global


International Trade: Trade Remedies & Trade Policy (Nationwide)

Chambers USA


Trade and Customs

Who's Who Legal: The International Who's Who of Business Lawyers


Distinguished Service Award

Office of the U.S. Trade Representative


International Trade and Finance Law

The Best Lawyers in America


Distinguished Service Award

National Asian Pacific-American Legal Consortium


Excellence In Legal Profession Award

Mexican American Legal Defense Foundation

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