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  1. Professionals

Maria Kostytska

Partner

Paris

+33 1 53 64 82 44

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  • Overview
  • Experience
  • Credentials
  • Insights & News

Maria is head of the arbitration practice of the firm’s Paris office. She acts as lead counsel in investor-state and commercial arbitration and litigation across a variety of industrial sectors, including oil and gas, renewable energy, utilities, infrastructure, banking, aviation and manufacturing. She also serves as arbitrator.

 

Maria Kostytska is an international arbitrator and litigator who is multi-lingual in English, French, Ukrainian, Russian, and Spanish. She is admitted to the bars of New York, District of Columbia, Paris, England and Wales (barrister). Maria acts as lead counsel in investor-state, state-to-state and commercial arbitrations under the ICSID, UNCITRAL, ICC, LCIA and SCC Rules. Maria also serves as a presiding, sole and co-arbitrator. Her arbitration and litigation experience spans a variety of industrial sectors, including oil and gas, renewable energy, utilities, infrastructure, banking, aviation and manufacturing.

Maria has previously served as a Court Member of the ICC International Court of Arbitration in Paris for two consecutive terms. She has also served as a founding Council Member of the Georgian International Arbitration Centre (GIAC) in Tbilisi. She is also a member of the Panel of Arbitrators of the Singapore International Arbitration Centre (SIAC).

Maria is a lecturer at the Versailles University, Masters in Arbitration and International Commerce (MACI), where she lectures on investment arbitration.

Prior to joining Winston, Maria has worked and undergone training at the U.S. Court of Federal Claims (Washington), World Bank’s Legal Department (Washington), ABA/CEELI (Washington), UNECE and UNEP (Geneva), and the European Parliament (Brussels).

Key Matters

Representative experience as counsel:

UNCITRAL
  • Acting as lead counsel for the Republic of Ecuador in an investment treaty arbitration lodged by a U.S. “investor” in a highly regulated sector. 
  • Acted as lead counsel in the first renewable energy arbitration lodged against Ukraine under the Energy Charter Treaty (ECT) for alleged modification of the green-tariff incentives regime.
  • Acted as lead counsel for Ukraine in a state-to-state/investor-state arbitration lodged by a territorial unit of a State and its state organ, and involving allegations of a takeover of the largest oil refinery in Ukraine.
  • Acted as cross-jurisdictional counsel for Ukraine in judicial proceedings for annulment, recognition and enforcement of an investment arbitral award rendered in favor of a Russian state-owned oil company before French, U.S. and English courts of all levels.
  • Represented a Swiss investor against an Eastern European State in an investment treaty arbitration arising out of the 2008 financial crisis. 
  • Represented Ecuador in an investment treaty arbitration involving allegations of brought by multinational oil companies involving allegations of denial of justice and breaches of a BIT for undue delay and manifestly erroneous decisions by Ecuadorian courts in seven commercial cases. 
  • Advised a multinational tobacco company on an investment treaty arbitration against an Asian State. 
ICSID
  • Represented a Swiss investor against an Eastern European State during the early stages of an investment treaty arbitration in the renewable energy sector arising out of a change of the incentives regime.
  • Represented a French provider of meal vouchers against Hungary in an ICSID arbitration arising out of an alleged expropriation of a business due to the change of the tax regime.
  • Successfully defended Jordan in two parallel ICSID and ICC arbitrations brought by a railway company and its Kuwaiti shareholders. This US$1 billion win was recognized in June 2013 as one of the “Top 10 Biggest Defense Wins” in the American Lawyer’s Arbitration Scorecard.
  • Obtained a victory at the jurisdictional stage for Ecuador and its State-owned company PetroEcuador in an ICSID arbitration brought by an American energy company involving an imposition of a windfall tax on oil profits and collection proceedings. 
  • Successfully represented Ecuador and its State-owned company PetroEcuador in an ICSID arbitration brought by a Spanish energy company involving an imposition of a windfall tax on oil profits and collection proceedings. 
  • Represented a French national in an ICSID annulment proceeding relating to the State’s intervention into and liquidation of a bank.
  • Represented a French utility company during the early stages of an ICSID arbitration arising out of a concession to provide waste collection and treatment services to a municipality of an Arab State. 
  • Represented an American energy company in an enforcement proceeding of a favorable ICSID award against Argentina in the United States, France, and Spain.
ICC
  • Successfully represented an American glass manufacturer in an ICC arbitration arising out of an acquisition agreement with a Belgian glass manufacturer.
  • Represented an Eastern European energy company in an investment treaty arbitration against an Eastern European State involving tariff fixing. 

Represented a Russian subsidiary of a French automobile manufacturer in an ICC arbitration against a Russian transporter arising out of a breach of a transportation contract.

  • Successfully represented a French transmission grid provider against an Italian electricity supplier in an ICC arbitration arising out of a breach of access rules.
  • Advised a Spanish fruit producer in connection with a dispute with its Tunisian joint venture partner.
  • Represented Tunisian companies against a multinational corporation in an ICC arbitration arising out a wrongful termination of a commercial representation agreement.
  • Represented a British online content provider against its Spanish distributor in an ICC arbitration under English law with a seat in Paris.

Litigation experience:

  • Acted as cross-jurisdictional lead counsel for Ukraine in judicial proceedings for annulment, recognition and enforcement of an investment arbitral award rendered in favor of a Russian state-owned oil company before French, U.S. and English courts of all levels.
  • Acted as lead counsel in French annulment proceedings in a state-to-state/investor-state dispute raising the issue of whether a State or a territorial unit of a State can claim “investor” status under a BIT.
  • Represented an Eastern European State in European Court of Justice proceedings involving imposition of EU sanctions on a former head of state. 
  • Successfully obtained recognition in the United States of an ICSID award rendered in favor of an Eastern European State.
  • Handled enforcement of an ICC award rendered in favor of an Iraqi construction company and against an Indian engineering and manufacturing company.
  • Successfully defended Eastern European producers of fertilizers in a complex antitrust action before U.S. district and appellate courts.

Experience as arbitrator:

  • Acted as a co-arbitrator in a Geneva-seated, Swiss law-governed ICC arbitration arising out of a solar energy project in Kazakhstan and involving Kazakh and French state entities. 
  • Served as a sole arbitrator in a Stockholm-seated ICC arbitration relating to an offshore gas exploration project in Turkmenistan.
  • Acted as a co-arbitrator in a complex London-seated LCIA arbitration relating to an alleged takeover of the largest Russian ceramic tile business. 
  • Acted as a co-arbitrator in a London-seated LCIA arbitration relating to a division of assets derived from a coal mine, with Russian and Cyprus applicable law.
  • Acting as a sole arbitrator in a London-seated LCIA arbitration in the aviation sector between U.S. and UK parties.
  • Acted as a co-arbitrator in a London-seated LCIA arbitration arising out of a shareholder dispute involving a regional airline.  
  • Served as a sole arbitrator in two parallel arbitrations arising out of credit agreements between Russian, Cyprus and BVI parties before the LCIA, seated in London, with English applicable law.
  • Acted as a sole arbitrator in a London-seated, English law-governed LCIA arbitration regarding sale of snow melting equipment involving UK and U.S. parties.
  • Served as a co-arbitrator in a London-seated LCIA arbitration relating to a credit agreement in the agricultural sector, with Cyprus and Ukrainian applicable law.
  • Served as co-arbitrator in a London-seated LCIA arbitration involving Cyprus and Russian parties arising out of a charter of a marine vessel.
  • Acted as a sole arbitrator in two parallel arbitrations in the mining sector between a Ukrainian state-owned supplier and a European distributor before ICAC in Kyiv.   
  • Acted as president in a Kyiv-seated ICAC arbitration arising out of a professional services agreement relating to the transfer of equipment and know-how from the United States to Ukraine.
  • Served as a co-arbitrator in an ICAC arbitration between a major Russian chemical company and a Ukrainian State-owned chemical company regarding transit of chemicals across Ukraine.
  • Served as a co-arbitrator in an ICAC arbitration concerning supply of pharmaceutical products by a Ukrainian supplier to a Brazilian state-owned buyer. 
  • Served as a sole arbitrator in an ad hoc UNCITRAL arbitration between American and French professional services providers, seated in Paris withFrench applicable law.
  • Sat as a co-arbitrator in an ad hoc UNCITRAL sale of goods arbitration between a Hong Kong IT equipment manufacturer and a Ukrainian IT equipment distributor, seated in Stockholm with Hong Kong applicable law.

Maria is recognized in Who’s Who Legal (Lexology): Arbitration France 2024 “Recommended” and Arbitration 2024, 2023 and 2022 as a “Future Leader” (Partners).  She was also recognized in Lexology Index: Arbitration 2025 as a “Future Leader.” Maria has been recognized by Best Lawyers in France, since 2020 and most recently in 2025, for International Arbitration. She has been recognized by GAR100 as a leader of the Paris International Arbitration practice in recent years and most recently in 2024. In 2024, her Paris International Arbitration team won the Palmares des Avocats Gold award, scoring first in International Arbitration, and in 2014, 2015 and 2016 - a Bronze award, scoring third in International Arbitration, among 100 leading law firms based on a multi-factor client-only rating system. Maria has been ranked in Legal 500 in recent years. Maria is recognized in the 2024, 2023 and 2021 editions of Lawdragon 500’s “Leading Global Litigators.”  She has been mentioned in Chambers & Partners, particularly in the France Guide 2025, as the leader of the Paris International Arbitration practice. She has been mentioned in Décideurs (Leaders’ League) as part of the Paris Litigation-Arbitration Department, “forte notoriété” in 2024

Maria is a member of the following professional associations:

  • ICC Commission on Arbitration and ADR
  • ICC Institute of World Business Law
  • ICC France
  • ICC Ukraine, Board Member and Head of the Arbitration Commission
  • ICC USCIB
  • Club Español de Arbitraje, Capítulo Francés y MUJERES
  • Comité Français de l’Arbitrage
  • Association Française de l’Arbitrage
  • ABA International Law Section
  • NYSBA International Law Section
  • IBA, Litigation and International Arbitration Committees
  • Ukrainian Bar Association (UBA), Council Member of the International Law and Energy Committees
  • Ukrainian Arbitration Association (UAA), Board Member
  • Arbitral Women

Capabilities

Litigation/Trials
International Arbitration
Energy Transition
Oil & Gas
Energy
Financial Services

Key Matters

Representative experience as counsel:

UNCITRAL
  • Acting as lead counsel for the Republic of Ecuador in an investment treaty arbitration lodged by a U.S. “investor” in a highly regulated sector. 
  • Acted as lead counsel in the first renewable energy arbitration lodged against Ukraine under the Energy Charter Treaty (ECT) for alleged modification of the green-tariff incentives regime.
  • Acted as lead counsel for Ukraine in a state-to-state/investor-state arbitration lodged by a territorial unit of a State and its state organ, and involving allegations of a takeover of the largest oil refinery in Ukraine.
  • Acted as cross-jurisdictional counsel for Ukraine in judicial proceedings for annulment, recognition and enforcement of an investment arbitral award rendered in favor of a Russian state-owned oil company before French, U.S. and English courts of all levels.
  • Represented a Swiss investor against an Eastern European State in an investment treaty arbitration arising out of the 2008 financial crisis. 
  • Represented Ecuador in an investment treaty arbitration involving allegations of brought by multinational oil companies involving allegations of denial of justice and breaches of a BIT for undue delay and manifestly erroneous decisions by Ecuadorian courts in seven commercial cases. 
  • Advised a multinational tobacco company on an investment treaty arbitration against an Asian State. 
ICSID
  • Represented a Swiss investor against an Eastern European State during the early stages of an investment treaty arbitration in the renewable energy sector arising out of a change of the incentives regime.
  • Represented a French provider of meal vouchers against Hungary in an ICSID arbitration arising out of an alleged expropriation of a business due to the change of the tax regime.
  • Successfully defended Jordan in two parallel ICSID and ICC arbitrations brought by a railway company and its Kuwaiti shareholders. This US$1 billion win was recognized in June 2013 as one of the “Top 10 Biggest Defense Wins” in the American Lawyer’s Arbitration Scorecard.
  • Obtained a victory at the jurisdictional stage for Ecuador and its State-owned company PetroEcuador in an ICSID arbitration brought by an American energy company involving an imposition of a windfall tax on oil profits and collection proceedings. 
  • Successfully represented Ecuador and its State-owned company PetroEcuador in an ICSID arbitration brought by a Spanish energy company involving an imposition of a windfall tax on oil profits and collection proceedings. 
  • Represented a French national in an ICSID annulment proceeding relating to the State’s intervention into and liquidation of a bank.
  • Represented a French utility company during the early stages of an ICSID arbitration arising out of a concession to provide waste collection and treatment services to a municipality of an Arab State. 
  • Represented an American energy company in an enforcement proceeding of a favorable ICSID award against Argentina in the United States, France, and Spain.
ICC
  • Successfully represented an American glass manufacturer in an ICC arbitration arising out of an acquisition agreement with a Belgian glass manufacturer.
  • Represented an Eastern European energy company in an investment treaty arbitration against an Eastern European State involving tariff fixing. 

Represented a Russian subsidiary of a French automobile manufacturer in an ICC arbitration against a Russian transporter arising out of a breach of a transportation contract.

  • Successfully represented a French transmission grid provider against an Italian electricity supplier in an ICC arbitration arising out of a breach of access rules.
  • Advised a Spanish fruit producer in connection with a dispute with its Tunisian joint venture partner.
  • Represented Tunisian companies against a multinational corporation in an ICC arbitration arising out a wrongful termination of a commercial representation agreement.
  • Represented a British online content provider against its Spanish distributor in an ICC arbitration under English law with a seat in Paris.

Litigation experience:

  • Acted as cross-jurisdictional lead counsel for Ukraine in judicial proceedings for annulment, recognition and enforcement of an investment arbitral award rendered in favor of a Russian state-owned oil company before French, U.S. and English courts of all levels.
  • Acted as lead counsel in French annulment proceedings in a state-to-state/investor-state dispute raising the issue of whether a State or a territorial unit of a State can claim “investor” status under a BIT.
  • Represented an Eastern European State in European Court of Justice proceedings involving imposition of EU sanctions on a former head of state. 
  • Successfully obtained recognition in the United States of an ICSID award rendered in favor of an Eastern European State.
  • Handled enforcement of an ICC award rendered in favor of an Iraqi construction company and against an Indian engineering and manufacturing company.
  • Successfully defended Eastern European producers of fertilizers in a complex antitrust action before U.S. district and appellate courts.

Experience as arbitrator:

  • Acted as a co-arbitrator in a Geneva-seated, Swiss law-governed ICC arbitration arising out of a solar energy project in Kazakhstan and involving Kazakh and French state entities. 
  • Served as a sole arbitrator in a Stockholm-seated ICC arbitration relating to an offshore gas exploration project in Turkmenistan.
  • Acted as a co-arbitrator in a complex London-seated LCIA arbitration relating to an alleged takeover of the largest Russian ceramic tile business. 
  • Acted as a co-arbitrator in a London-seated LCIA arbitration relating to a division of assets derived from a coal mine, with Russian and Cyprus applicable law.
  • Acting as a sole arbitrator in a London-seated LCIA arbitration in the aviation sector between U.S. and UK parties.
  • Acted as a co-arbitrator in a London-seated LCIA arbitration arising out of a shareholder dispute involving a regional airline.  
  • Served as a sole arbitrator in two parallel arbitrations arising out of credit agreements between Russian, Cyprus and BVI parties before the LCIA, seated in London, with English applicable law.
  • Acted as a sole arbitrator in a London-seated, English law-governed LCIA arbitration regarding sale of snow melting equipment involving UK and U.S. parties.
  • Served as a co-arbitrator in a London-seated LCIA arbitration relating to a credit agreement in the agricultural sector, with Cyprus and Ukrainian applicable law.
  • Served as co-arbitrator in a London-seated LCIA arbitration involving Cyprus and Russian parties arising out of a charter of a marine vessel.
  • Acted as a sole arbitrator in two parallel arbitrations in the mining sector between a Ukrainian state-owned supplier and a European distributor before ICAC in Kyiv.   
  • Acted as president in a Kyiv-seated ICAC arbitration arising out of a professional services agreement relating to the transfer of equipment and know-how from the United States to Ukraine.
  • Served as a co-arbitrator in an ICAC arbitration between a major Russian chemical company and a Ukrainian State-owned chemical company regarding transit of chemicals across Ukraine.
  • Served as a co-arbitrator in an ICAC arbitration concerning supply of pharmaceutical products by a Ukrainian supplier to a Brazilian state-owned buyer. 
  • Served as a sole arbitrator in an ad hoc UNCITRAL arbitration between American and French professional services providers, seated in Paris withFrench applicable law.
  • Sat as a co-arbitrator in an ad hoc UNCITRAL sale of goods arbitration between a Hong Kong IT equipment manufacturer and a Ukrainian IT equipment distributor, seated in Stockholm with Hong Kong applicable law.

Credentials

Education

Maria received her I.B. from Red Cross Nordic United World College in Norway in 1997.  She obtained her B.A. in Government/Political Science from Smith College in 2001, spending her junior year abroad in Geneva and studying Public International Law at the University of Geneva (UNIGE) Faculty of Law and International Relations at the Geneva Graduate Institute for International Studies.  She obtained her Juris Doctor degree and Comparative and International Law Certificate from Columbus School of Law, Catholic University of America in 2005.

    Admissions
    • District of Columbia
    • Paris, France
    • New York
    • England & Wales – Barrister
    Languages
    • French
    • Spanish
    • Russian
    • Ukrainian
    • English

    Related Insights & News

     Speeches
    • “Iron grip and soft touch: women in energy, mining and infrastructure in Latin America”, Paris Arbitration Week (April 2025) 
    • “Boots on the ground and a gaze on the horizon: what Ukrainian businesses expect from international arbitration”, Paris Arbitration Week (April 2025) 
    • “Reparations – war, frozen assets and political risks”, Asset Recovery CEE, Warsaw (April 2025)
    • "Boots on the ground and a gaze on the horizon :what Ukrainian businesses expect from international arbitration", Paris Arbitration Week 2025, Paris (April 2025)
    • GAR LIVE:  Women in Arbitration, “Energy disputes arising out of the war in Ukraine, Paris (December 2024)
    • “Recovery of losses caused by the war in Ukraine,” III Conference of Pravo.ua/Legal Practice, Kyiv (November 2024)
    • “New investments in energy and causes of energy disputes:  past and future,” Solidarity Arbitration and Mediation Days, Warsaw (October 2024)
    • “The impact of military conflicts and sanctions on arbitration,” International Commercial Arbitration Court (ICAC) in Kyiv (October 2024)
    • “Best practices in the gathering, marshaling and weighing of evidence in international arbitration,” ArbCEE retreat, Dubrovnik (October 2024)
    • “Las tendencias en arbitraje de inversión en el sector de las energías renovables,” XV Conferencia de Arbitraje Internacional, AMCHAM Ecuador, Quito (September 2024)
    • "Las últimas tendencias de valoración de los daños y perjuicios en arbitrajes de inversiones,” conferencia Women in Arbitration del Instituto Peruano de Arbitraje, Arequipa (July 2024)
    • “Energy disputes arising in the current geopolitical context,” Baltic Arbitration Days, Riga (June 2024)
    • “Energy disputes arising in the current geopolitical context,” Moldova Arbitration Days, Chisinau (May 2024)
    • “Retos y oportunidades en la representación de Estados en litigios internacionales,” Club Español e Iberoamericano de Arbitraje, Geneva (March 2024)
    • “Energy trends and disputes–in the current geopolitical and energy-transition context,” Paris Arbitration Week, Paris (March 2024)
    • “Ukraine—the rebuild and reparations,” Paris Arbitration Week, Paris (March 2024)
    • “International energy disputes after the invasion of Ukraine: can it handle the flux capacity?” ABA/ILS conference, Houston (February 2024)
    • “The impact of sanctions on international arbitration involving Russian, Belarusian and Ukrainian parties,” Solidarity Arbitration and Mediation Days, Warsaw (December 2024)
    • Curso de actualización “Arbitraje de inversiones” ARBITRI e Pontifica Universidad Católica del Peru (PUCP) (December 2023)
    • “New challenges in enforcement of the arbitral awards,” GIAC Arbitration Days, Tbilisi (October 2024)
    • “Arbitraje, inversiones y la seguridad jurídica,” conferencia del Instituto Peruano de Arbitraje, Lima (September 2023)
    • “III Energy Law Conference” of the Ukrainian Bar Association, Warsaw (September 2023)
    • “Evolution or revolution: have we mastered international arbitration or do we need a new blueprint for the future?” Stockholm (August 2023)
    • “Arbitration in wartime,” Le Café des Arbitres, Paris (June 2023)
    • “Claims arising from the war in Ukraine: the role of the English jurisdiction,” London International Disputes Week, London (May 2023)
    • “The war in Ukraine: legal mechanisms for recovery of losses,” Paris Arbitration Days, Paris (March 2023)
    • “Due process paranoia in international arbitration,” as part of the panel on “Procedural efficiency in international arbitration,” International Commercial Arbitration Court (ICAC) in Kyiv (October 2019)
    • “Drafting enforceable awards,” ICC training, Kyiv (September 2019)
    • “Shareholder disputes in the CIS,” Paris Arbitration Week, Paris (April 2018)
    • “Jurisdiction over a sovereign in recognition and enforcement proceedings” and “Cross-jurisdictional cooperation between lawyers,” C5 conference on international disputes and assets recovery in the CIS, London (January 2018)
    • “2017 Rules: Changes Explained: Transparency,” ICC-ICC-Ukraine side event at the Kyiv Arbitration Days, Kiev (November 2017)
    • “Immunity from attachment and execution,” Baltic Arbitration Days, Riga (June 2017)
    • “How geopolitical tensions are shaping energy disputes,” ICDR oil and gas arbitration conference, Houston (April 2017)
    • “The U.S. and EU sanctions as a defense to non-performance of legal obligations,” CEA conference, Warsaw (May 2015)
    • “Legal remedies available to state-owned and private companies in connection with the situation in the Crimea and Eastern Ukraine,” Kyiv inter-ministerial seminar (December 2015)
    • “The Russian food import ban as a countermeasure to the U.S. and EU sanctions, and legal remedies to address it” Kyiv Arbitration Days (November 2015)
    • “Preparation of expert witnesses for examination: the do’s and don’ts,” Swedish Arbitration Days, Stockholm (September 2014)
    • “How not to pay and get your money back . . . in international arbitration,” Winston client seminar, Paris (July 2013)
    • “Annulment and enforcement of arbitral awards in France, Switzerland and Tunisia,” Tunisian Ministry of Justice conference, Tunis (April 2013)
    • Nationality planning, treaty shopping and denial of benefits, ICC YAF oil and gas arbitration conference, Geneva (January 2013), 
    • “Pathological arbitration clauses,” Winston client seminar, Paris (November 2012)
    • “Jurisdiction over investment and investor,” International Law Institute (ILI) seminar, Washington, D.C. (November 2012)
    • “Methodology of proof in international arbitration,” Ukrainian Ministry of Internal Affairs conference, Kyiv (November 2012)
    • “The use of valuation experts,” ABA conference, Moscow (September 2012)
    • “Damages in international arbitration,” ICC YAF conference and Winston client seminar, Paris (July 2012)
    • “Drafting of arbitration clauses and the binding effect of arbitration clauses on non-signatories,” ILI advanced arbitration seminar, Washington, D.C. (November 2011)
    • “Independence and impartiality of arbitrators,” ICC YAF conference, Prague (October 2011)
    • “Selection and appointment of arbitrators,” ICC PIDA seminar, Paris (October 2011)
    • “Applicable law in investment arbitration,” ILI seminar, Washington, D.C. (November 2010) 
    • “Invoking human rights standards and precedents in investment arbitration,” ILA conference, the Hague (September 2010)
    • “Arbitration, litigation, and mediation of investor-State disputes,” UNCTAD and Ukrainian Ministry of Justice conference, Kiev (October 2009)

     

    Publications
    • "Energy Disputes Arising from the Russian Invasion of Ukraine" (TDM, ISSN 1875-4120) April 2025
    • Cross-border enforcement of judgments against states, IBA jurisdiction-by-jurisdiction guide, United States chapter (2024)
    • Sovereign Immunity in France, LEXOLOGY (2023)
    • Enforcement of Foreign Judgments in the United Kingdom, LEXOLOGY (2023)
    • Jordan chapter, GAR Investment Treaty Arbitration Know-How (2015)
    • Book review of Gary Born’s “International Arbitration: Law and Practice,” Pravo Ukrainy (2013)
    • “Le contrôle post-arbitral de la sentence arbitrale internationale : Regards croisés en droit français, suisse et tunisien,” Pédone (2013)
    • “Declaratory Relief in International Arbitration,” Journal of International Arbitration, Kluwer (2012)
    • Fuchs v. Georgia, case digest, International Arbitration Case Law and GAR (2011)
    • Ukraine dispute resolution chapter, Getting the Deal Through and Transnational Dispute Management (2006)
    Recognitions
    Winston & Strawn Paris Recognized in The Legal 500 EMEA 2025

    March 26, 2025

    Sponsorship
    Winston Paris Sponsors, Partner Speaks at GAR Live: Women in Arbitration

    December 5, 2024

    Recognitions

    Winston & Strawn International Arbitration Partners Recognized in Lexology Index: Arbitration 2025

    November 22, 2024

    Recognitions
    Winston Lawyers Featured on the 2024 Lawdragon 500 Leading Global Litigators List

    July 25, 2024

    Recognitions

    Winston & Strawn Attorneys Recognized in The Best Lawyers™ in France 2025

    June 20, 2024

    Recognitions
    Winston Paris Teams Win Palmarès du Droit 2024 International Law Firm of the Year Award

    March 26, 2024

    Recognitions
    Winston & Strawn Recognized in Global Arbitration Review’s GAR100 17th Edition

    March 22, 2024

    Article
    Partner Maria Kostytska Authors the U.S. Chapter on Cross-Border Enforcement of Judgments Against States

    March 15, 2024

    Sponsorship
    Winston & Strawn Sponsors ABA ILS Energy Conference

    February 27, 2024

    Recognitions
    Winston Attorneys Recognized in Who’s Who Legal: Arbitration 2024

    December 7, 2023

    Recognitions
    Maria Kostytska Selected to Become a Member of the Singapore International Arbitration Centre (SIAC) Panel of Arbitrators

    November 20, 2023

    Article
    Maria Kostytska Contributes to Lexology’s Getting the Deal Through – Sovereign Immunity France

    October 16, 2023

    View All Insights & News

    Capabilities

    Litigation/Trials
    International Arbitration
    Energy Transition
    Oil & Gas
    Energy
    Financial Services
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