Add a bookmark to get started

Charlene Sun

Charlene Sun

Partner
About

Charlene Sun focuses her practice on international arbitration and multi-jurisdictional cross-border disputes. She enforces arbitral awards and foreign judgments in US courts and coordinates global asset recovery campaigns against sovereign and non-sovereign debtors. She is fluent in matters involving foreign sovereign immunity and other complex jurisdictional issues that arise when litigating foreign disputes in US courts. She has substantial experience with discovery under 28 U.S.C. § 1782 and other litigation tools in aid of foreign disputes. 

Charlene also represents clients in a broad range of contract and treaty-based conflicts in arbitration, including energy sector disputes that involve parties from Latin America, Europe and Asia. She advises clients concerning dispute risk related to foreign direct investment in developing nations. 

Charlene has spoken and published articles on issues related to sovereign immunity, the enforcement of arbitral awards, arbitral jurisdiction and other issues relevant to international arbitration and cross-border litigation.

Bar admissionsDistrict of ColumbiaNew YorkTexas
CourtsSupreme Court of the United StatesUnited States Court of Appeals for the First CircuitUnited States Court of Appeals for the Second CircuitUnited States Court of Appeals for the Fourth CircuitUnited States Court of Appeals for the Seventh CircuitUnited States Court of Appeals for the Ninth CircuitUnited States Court of Appeals for the District of Columbia CircuitUnited States District Court for the Southern District of New YorkUnited States District Court for the Eastern District of New YorkUnited States District Court for the Northern District of New YorkUnited States District Court for the Northern District of IllinoisUnited States District Court for the District of ColumbiaUnited States District Court for the District of Colorado

EXPERIENCE

Enforcement Matters
  • Representing Canadian award creditor in multi-jurisdictional proceedings to enforce a US$1 billion arbitration award against Venezuela
  • Represented Chevron Corporation in the successful enforcement of a US$100 million arbitral award against Ecuador
  • Represented European award creditor in proceedings to enforce a US$500 million treaty arbitration award against Kazakhstan
  • Represented multiple European renewable energy companies in multi-jurisdictional proceedings to enforce Energy Charter Treaty awards against Spain and Italy
  • Represented affiliate of U.S. petroleum services company in multi-jurisdictional proceedings to enforce a US$500 million arbitration award against Mexican state-owned oil company. The award was enforced in the U.S. despite having been annulled by a court in Mexico
  • Representing U.K. financial institution in proceedings to enforce arbitration award against Kyrgyzstan
  • Represented U.S. private equity fund in multi-jurisdictional proceedings in United States, United Arab Emirates and Singapore to enforce an arbitration award and related judgment
  • Represented U.S. investment bank in proceedings to enforce a US$120 million portfolio of arbitral awards against Indian parties
  • Represented U.S. defense contractor in successful multi-jurisdictional proceedings to enforce arbitration award against Greece
  • Represented Southeast Asian energy companies in multi-jurisdictional proceedings to enforce US$60 million arbitration award against Lao People's Democratic Republic
  • Represented New York bank in multijurisdictional proceedings to enforce New York judgment against individual and corporate judgment debtors
  • Represented Spanish gas company in multijurisdictional proceedings to enforce US$2 billion award against Egypt
Arbitration Matters
  • Represented Indian conglomerate in successfully defeating US$2 billion claim by Indian Government in India-seated United Nations Commission on International Trade Law (UNCITRAL) arbitration
  • Represented Mexican pharmaceutical manufacturer in Mexico-seated ICC arbitration against Japanese pharmaceutical conglomerate
  • Represented U.S. petroleum services company in North American Free Trade Agreement (NAFTA) arbitration against United Mexican States
  • Represented U.S. liquefied natural gas (LNG) company in successfully defeating multi-billion dollar claim brought by U.K.-based multinational oil and gas company in New York-seated (International Centre for Dispute Resolution) ICDR arbitration
  • Represented U.S. multinational oil and gas company in UNCITRAL arbitration convened under bilateral investment treaty in connection with fraudulent multi-billion dollar judgment issued by Ecuadorian courts
U.S. Litigation in Aid of Foreign Disputes
  • Represented foreign government in fraud action against former head of state, successfully obtaining pre-judgment freeze of key U.S.-based assets and disclosure related to U.S. asset holdings
  • Represent New York and Mauritius-based financial institutions in connection with U.S. proceeding for judicial discovery assistance pursuant to 28 U.S.C. § 1782
  • Represented Brazilian fund manager in New York litigation proceedings against former fund manager relating to misuse of corporate funds, and related proceedings seeking judicial discovery assistance pursuant to 28 U.S.C. § 1782
  • Represented Libyan sovereign wealth fund in connection with U.S. proceeding for judicial discovery assistance pursuant to 28 U.S.C. § 1782
  • Represented Indian conglomerate in U.S. proceedings seeking judicial discovery assistance pursuant to 28 U.S.C. § 1782
Education
  • J.D., University of Pennsylvania Law School
  • B.A., University of Texas at Austin

Awards

Chambers USA

  • Band 1, Nationwide International Arbitration: Enforcement, (2025)

The Legal 500 United States

  • Recommended, International Arbitration, (2023 – 2025)
  • Recommended, International Litigation, (2025)
Additional Recognitions
  • Future Star, Benchmark Litigation, (2024)
  • Future Leader for Arbitration, Who's Who Legal/Global Arbitration Review, (2022)
  • Appointed, U.S. Sub-Committee of the Equal Representation in Arbitration Pledge
  • 40 & Under Hot List, Benchmark Litigation, (2021 – 2023)

Publications

  • Co-author, "D.C. Circuit Finds that Foreign Court's Order Setting Aside Award Has No Bearing on District Court's Jurisdiction," ICC Dispute Resolution Bulletin: e-Journal of the International Chamber of Commerce (ICC), September 2022
  • Co-author, "Enforcement of Awards," The Investment Treaty Arbitration Review, Sixth Edition, June 2021
  • Co-author, "Enforcement of Investment Treaty Arbitration Awards," Globe Law & Business, First and Second Editions, January 2021
  • Co-author, "Servotronics Inc v. Boeing Co. Considerations Regarding Section 1782 in Aid of Foreign Commercial Arbitrations and Thoughts for the Brazilian Arbitration Scenario United States," Revista Brasileira de Arbitragem, March 2020
  • Co-author, "Acta iure gestionis and acta iure imperii," Max Planck Encyclopedia of Comparative Constitutional Law, June 2018
  • Contributor, "International Aspects of U.S. Litigation: A Practitioner's Deskbook," American Bar Association, June 2018
  • Co-author, "Rules of Reason: U.S. Courts Grapple with the Requirements for a Reasoned Award," Indian Journal of Arbitration Law, January 2017
  • Co-author, "Rift Among US Courts In Enforcing Int’l Arbitration Awards," Law360, August 2015
  • Co-author, "U.S. Supreme Court clarifies how to enforce forum selection clauses," Lexology, January 2014
  • Co-author, "Ninth Circuit Clarifies Scope of Commercial Activity Exception to Sovereign Immunity," Lexology, December 2013
  • Co-author, "International litigation update: developments concerning the Alien Tort Statute and personal jurisdiction," Lexology, May 2013
  • Co-author, "Second Circuit Rules that a Judgment-Creditor is Entitled to Broad Discovery Concerning Foreign State Judgment-Debtor's Assets," Lexology, October 2012
  • Co-author, "Emerging Issues in Alien Tort Statute Litigation," California Tort Reporter, February 2012
  • Co-author, "Sovereign Immunity: A Venerable Concept in Transition?" ABA International Litigation Quarterly, Winter 2011
  • Co-author, "International Jurisdictional Standoffs and Foreign Antisuit Injunctions," ABA International Litigation Quarterly, Spring 2010
  • Co-author, "The Evolution of Judicial Review Under the Federal Arbitration Act," NYU Journal of Law & Business, Summer 2009

Seminars

Media Mentions

Connect