Quinn emanuel trial lawyers

Hewett, Dawn

Dawn Yamane Hewett

Of Counsel


Dawn Yamane Hewett is a multi-lingual arbitration and litigation advocate with over a decade of experience successfully representing clients in complex investment treaty and commercial arbitrations, multi-jurisdiction litigations, and high-stakes government investigations.  She represents and advises sovereign governments, state-owned enterprises, and private parties with disputes from all around the world, including Latin America, Asia, Europe, and Africa.  She has particularly deep experience in investor-state arbitrations, including those administered by the International Centre for Settlement of Investment Disputes (ICSID) and under other international arbitration rules.  Ms. Hewett also represents clients in investigations by the federal government and in litigation in federal courts, including the Supreme Court.  Her U.S. matters have involved everything from criminal and civil antitrust, bribery, obstruction of justice, intellectual property, arbitration, citizenship issues, to international trade.

A graduate of Yale Law School and Princeton University’s Woodrow Wilson School of Public and International Affairs, Ms. Hewett lectures frequently on international law, international arbitration, anti-corruption/FCPA, trade, and other topics, having spoken at industry conferences around the world and at universities such as Harvard Law School, Yale Law School, Georgetown University Law Center, George Washington University, American University, Seton Hall University, University of Miami, University of Washington, and Universidad de Costa Rica. In 2019, she was named Seton Hall Law School’s Distinguished Practitioner of International Law.

Prior to joining Quinn Emanuel, Ms. Hewett was Deputy General Counsel for Strategic Initiatives at the U.S. Department of Commerce, where she handled a broad range of legal issues for the Department, including anti-corruption, commercial rule of law, appellate litigation, trade and investment, intellectual property, export controls, and digital economy issues.  Ms. Hewett also served as a law clerk for the Honorable M. Margaret McKeown on the United States Court of Appeals for the Ninth Circuit and worked at another global law firm in DC.  Throughout her career, her pro bono legal work has spanned everything from immigration, voting rights and elections law, non-profit law, civil rights, constitutional law, to public international law matters.  Prior to her legal career, Ms. Hewett worked at the Princeton Project on National Security and at Front Line, the International Foundation for the Protection of Human Rights Defenders.  She also worked at the Truth and Reconciliation Commission in Sierra Leone, worked on a transnational justice project related to the Democratic Republic of the Congo, and founded and directed a legal assistance program, which continues to aid the work of the Extraordinary Chambers in the Courts of Cambodia (Khmer Rouge Tribunal).

Ms. Hewett holds degrees from Yale Law School, Princeton University Woodrow Wilson School of Public and International Affairs, Trinity College Dublin, and the University of Washington.  She just finished a three-year term on the Executive Council of the American Society of International Law and is the Women’s Forum Co-Chair for the Asian Pacific American Bar Association of D.C.  She is also a U.S.-Japan Leadership Program Fellow, U.S.-Japan Council Leader, National Asian Pacific American Bar Association (NAPABA) Leadership Advancement Fellow, and Truman National Security Project Fellow.  In 2014, she was awarded the NAPABA Best Lawyers Under 40 Award.  

Ms. Hewett is fluent in English, Japanese, and Spanish and proficient in Portuguese, with reading ability in French.

  Representative Clients

  • Republic of Korea
  • Republic of Panama
  • Republic of Guatemala
  • State-owned power company in El Salvador
  • Integradora de Servicios Petroleros Oro Negro
  • Barrick Gold
  • eBay
  • Coca-Cola
  • Compañía Mineral Orlandini
  • NGK Sparkplugs
  • Hitachi Automotive
  • Yamashita Rubber
  • Casinos Austria
  • Club Hotel Loutraki
  • Avon Products
  • OPI Products
  • Global Fairness Initiative
  • Lawyers Committee for Civil Rights
  • Fair Election Legal Network

  Notable Representations

  • Counsel to Julio-Miguel Orlandini-Agreda and Compañía Mineral Orlandini in a pending UNCITRAL arbitration under the U.S. -Bolivia Bilateral Investment Treaty involving mining rights. 
  • Counsel to Julio-Miguel Orlandini-Agreda and Compañía Mineral Orlandini in related section 1782 discovery applications in the Southern District of New York and the Eastern District of Virginia.
  • Counsel to the Shareholders of Integradora de Servicios Petroleros Oro Negro in a pending UNCITRAL arbitration under the North American Free Trade Agreement (NAFTA) involving the oil sector in Mexico.
  • Counsel to the Republic of Korea in a pending ICSID arbitration under the U.S.-Korea Bilateral Investment Treaty involving a claim of $4.7 billion filed by LSF-KEB Holdings SCA et al involving the Lone Star funds, and relating to bank regulation and taxation matters. LSF-KEB Holdings SCA and others v. Republic of Korea (ICSID Case No. ARB/12/37).
  • Counsel to the Republic of Panama in a US$ 413 million claim under the U.S.-Panama bilateral investment treaty involving a purported investment in hydro-electric power plant project. Case dismissed and costs awarded to Panama. Transglobal Green Energy, LLC and Transglobal Green Energy de Panama, S.A. v. Republic of Panama (ICSID Case No. ARB/13/28).
  • Counsel for the Republic of Guatemala in the first ever international arbitration filed under the auspices of CAFTA and the first ever ICSID arbitration filed against Guatemala. Railroad Development Corporation (RDC) v. Republic of Guatemala (ICSID Case No. ARB/07/23).
  • Counsel for the Republic of Panamá in the first ever international ICSID arbitration filed against it by several U.S.-based investors under the auspices of the bilateral investment treaty between the U.S. and the Republic of Panamá involving a multi-million dollar claim arising from allegations that certain Panamanian tax credits were not honored. Case conducted entirely in Spanish. Obtained a complete victory for client and a multi-million dollar award of costs and fees. Nations Energy, Inc. y otros c. República de Panamá (ICSID Case No. ARB/06/19).
  • Counsel for the Republic of Panamá in U.S. District Court and bankruptcy court for the confirmation and enforcement of an arbitral award entered in its favor.
  • Counsel for Austrian and Greek investors in an ICSID arbitration filed against the Republic of Serbia regarding the gaming industry. Case settled on favorable terms to the client. Club Hotel Loutraki S.A. and Casinos Austria International Holding GMBH v. Republic of Serbia (ICSID Case No. ARB/11/4).
  • Counsel for a Central-American state-owned power company in an UNCITRAL ad hoc arbitration against a foreign investor regarding breach of contract claims.
  • Counsel to several Japanese senior-level executives facing possible indictment for criminal antitrust violations and obstruction of justice in three separate auto parts antitrust investigations conducted by the DOJ and Japanese Fair Trade Commission.
  • Counsel to a Fortune 250 global company in the beauty, household, and personal care products industry involving an investigation into potential Foreign Corrupt Practices Act (FCPA).
  • Interim compliance counsel in the Europe, Middle East and Africa Division and later Asia/Pacific Rim Division of a Fortune 250 global company in the beauty, household, and personal care products industry. 
  • Counsel to various companies regarding compliance with U.S. domestic consumer protection laws such as the California Transparency in Supply Chain Act and the Anti-Trafficking Federal Acquisition Rules (FAR) and Defense Federal Acquisition Rules (DFARS) combating trafficking in persons.


  • Yale Law School
  • (J.D., 2008)
    • Olin Fellow in Law and Economics
    • Yale Journal of International Law:
      • Executive Editor
  • Princeton University
  • (M.P.A., with Distinction, 2005)
    • Public Policy and International Affairs Fellow
    • Harry S. Truman Scholar
  • Trinity College Dublin
  • (M. Phil., Ethnic and Racial Studies, First Class Honours, 2002)
  • (Postgraduate Diploma in Statistics) 
    • George J. Mitchell Scholar
  • University of Washington
  • (B.A., International Studies, with Distinction, 2000)
  • (B.A., Political Science, 2000) 
    • Phi Beta Kappa
    • Student Body President, 1997-98
  • Certificate in Transatlantic Studies
  • Certificate in Political Economy



District of Columbia Bar; United States Supreme Court; United States Court of Appeals: Ninth Circuit, District of Columbia Circuit


  • Spanish
  • Portuguese
  • Japanese

  Prior Associations

  • United States Department of Commerce:
    • Deputy General Counsel for Strategic Initiatives, 2014-2017
  • Arnold & Porter, LLP:
    • Associate, 2008-2009; 2010-2014
  • Law Clerk to the Hon. M. Margaret McKeown:
    • United States Court of Appeals for the Ninth Circuit, 2009-2010


Publications and Lectures


  • Mara Senn and Dawn Y. Yamane Hewett.  “Damages in International Arbitration: Understanding the Theories and Methods of Damages Valuation and Compensation,” International Arbitration in the United States, Kluwer Law International, 2017.
  • Dawn Yamane Hewett and Julianne Jaquith, International Arbitration, American Bar Association, International Legal Developments Year in Review: 2017, Vol. 52 (Third Party Funding in Singapore and Hong Kong).
  • Tendayi Achiume, Dawn Yamane Hewett, and Ina Popova.  “An Introduction: Charting New Frontiers in International Law,” Proceedings of the 2016 American Society of International Law Annual Meeting, v. 110.
  • Kristen E. Ittig, Samuel M. Witten, and Dawn Y. Yamane Hewett. “How To Approach The New Anti-Human Trafficking Rule,” Government Contracts Law360. Also ran in Aerospace & Defense Law360 and Employment Law360, Oct. 17, 2013.
  • Paolo Di Rosa and Dawn Yamane Hewett. “The New 2012 U.S. Model BIT: Staying the Course,” Yearbook on International Investment Law and Policy, 2012-2013.
  • John B. Bellinger III, Kristen E. Ittig, Samuel M. Witten, and Dawn Y. Yamane Hewett. “Executive Order Introduces Stricter Anti-Human Trafficking Requirements for Government Contractors and Subcontractors,” Federal Contracts Report, Oct. 23, 2012.
  • Keith M. Korenchuk, Samuel M. Witten, and Dawn Y. Yamane Hewett. “Lessons Learned From FCPA Enforcement Action Against Medical Device Company Smith & Nephew,” BNA’s White Collar Crime Report, Mar. 9, 2012.
  • Jean Kalicki and Dawn Yamane Hewett. “The Unavoidability of Uncertainty: One Lesson from the Recent U.S. Court Ruling in Argentina v. BG Group,” Kluwer Arbitration Blog, January 27, 2012.
  • Keith M. Korenchuk, Samuel M. Witten, and Dawn Y. Yamane Hewett. “Anti-Corruption Compliance: Avoiding Liability for the Actions of Third Parties,” Financial Fraud Law Report, Jul./Aug. 2011.
  • Keith M. Korenchuk, Samuel M. Witten, and Dawn Y. Yamane Hewett. “Tyson Foods Agrees to Pay $5.2 Million in Penalties to Settle Foreign Corrupt Practices Act Probe Into Bribery Payments Made to Mexican Food Safety Official,” Latin American Law & Business Report. Also ran in North American Free Trade & Investment Report, Feb. 2011.
  • Dawn Y. Yamane Hewett. “Sudan’s Courts and Complementarity in the Face of Darfur,” 31 Yale J. Int’l L. 276, 2006.
  • David Fidler, Laurie Garrett, Peter Bergen, and Dawn Y. Yamane Hewett. “Report of the Working Group on State Security and Transnational Threats,” Princeton Project on National Security, 2005.


  • “Corruption After Establishment: Should It Disqualify Otherwise Meritorious Claims?” 13th Annual Juris Investment Treaty Arbitration Conference, Washington, DC, April 8, 2019.
  • “Fragmentation in International Data Protection Law,” American Society of International Law Annual Meeting, Moderator, Washington, DC, March 28, 2019.
  • “Substantive Protections in Investment Treaty Arbitration," Seton Hall Law School, Guest Lecturer, Newark, NJ, March 14, 2019.
  • “The Global Fight Against Corruption in 2019," Keynote Address as Seton Hall Distinguished Practitioner of International Law 2019, Newark, NJ, March 13, 2019.
  • "International Disputes," Sin Límites: Law & Business at the Gateway to the Americas, University of Miami, Speaker, Miami, FL, February 9, 2019.
  • American Society of International Law, Women in International Law Interest Group Career Panel, Speaker, Washington, DC, August 9, 2018.
  • George Washington Law School International Law Society Career Panel, Speaker, Washington, DC, March 14, 2018.
  • "Current State of Trade and the Trans-Pacific Partnership (TPP),” U.S.-Japan Council Annual Conference, Speaker, Washington, DC, Nov. 12, 2017.
  • “The Role of International Economic Agreements in Promoting International Law Values,” Biennial Conference of the Latin American Network of International Economic Law, Panelist, San José, Costa Rica, Sept. 8, 2017
  • “Combating Voter ID Laws and Efforts to Restrict Access to the Ballot Box,” U.S.-Japan Leadership Program Annual Conference, Tokyo, Japan, July 24, 2017.
  • “At Your Doorstep: Regulators Reach Regional, National, and International Borders,” 35th Global Legal Compliance Confex, Panelist, Washington, D.C., April 26, 2017.
  • “Asian Pacific American Trailblazers: Between Two Worlds,” Asian Pacific American Law Student Association (APALSA), Panelist, Georgetown Law School, Washington, D.C., Mar. 6, 2017.
  • “Incentives for Cross-Border Energy Sector Investment,” Indo-Asia Connectivity for Shared Prosperity Conference, Panelist, Kolkata, India, Dec. 14, 2016.
  • “International Law and Government Service,” ASIL Midyear Meeting, Panelist, Seattle, WA, Nov. 12, 2016.
  • “Cross-Border Data Flows and the Digital Economy,” ASIL International Trade Seminar, Panelist, Seattle, WA, Nov. 10, 2016.
  • “Private Sector Roundtable on Cuba in Advance of the U.S.-Cuba Regulatory Dialogue,” Host/Moderator, Washington, DC, Feb. Oct., Nov. 2016.
  • “Achieving Diversity in the Workplace,” U.S.-Japan Leadership Program Annual Conference, Seattle, WA, July 18, 2016.
  • “Anti-Corruption and Transparency in India Roundtable,” Host/Moderator, American Chamber of Commerce in India, New Delhi, India, Oct. 30, 2015.
  • “Fifth U.S.-China Transnational Bribery Dialogue” under the auspices of the U.S.-China Ninth Joint Liaison Group Anti-Corruption Working Group, a bilateral law enforcement dialogue led by the U.S. Justice and State Departments, Host/Moderator, Washington, DC, Oct. 27, 2014.
  • “Evolution in Substantive Protections in Bilateral Investment Treaties and Investment Agreements,” Guest Lecturer, American University International Arbitration Summer Program, Jun. 2, 2014.
  • “International Anti-Corruption Enforcement by the United States,” Speaker, Center for Latin American Issues, George Washington University, Washington, DC, May 1, 2012.
  • Harvard University Asian Pacific American Law Students Association Early Interview Program (EIP) Tips Program, Panelist, Cambridge, MA, Apr. 17, 2012.
  • “The Genocide Convention as a Failed Experiment in Prevention: Toward a New Regime for Preventing Genocide and Mass Killings,” Speaker, Yale Law Teaching Series, New Haven, CT, Apr. 16, 2008.