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Marie Stoyanov

Partner

Paris

Stoyanov Marie
Marie Stoyanov

Partner

Paris

Paris-based partner Marie specialises in commercial and investment treaty arbitration. She has advised and represented clients in arbitrations throughout the world, both ad hoc and under all the major institutional rules, including the ICC, LCIA and ICSID Rules in which she has particular expertise.

Marie has substantial experience across all market sectors but her practice focuses particularly on infrastructure, energy, and natural resource disputes, with expertise in disputes arising across the African continent.


With clients that include both international investors and sovereign States, Marie regularly appears as advocate before renowned international tribunals arguing extremely complex cases, often with hundreds of millions of dollars at stake. Marie also sits as an arbitrator herself and has written and spoken regularly about international investment and arbitration.


After graduating from ESSEC, Marie studied law and was admitted to the Paris bar in 2003. As a French qualified lawyer, she is naturally used to working in all civil-law environments, in particular those whose law is directly derived from French law (e.g. Algerian law, Egyptian law, Moroccan law, UAE law).

In addition, Marie has also advised various clients on how best to structure their investment in Africa, Eastern Europe and Asia, in order to take advantage of protections offered by investment treaties and foreign investment laws.

A member of the Executive Board of the European Federation for Investment Law and Arbitration (EFILA), Marie is also an Advisory Board member of the publication Investment Claims, which is published by Oxford University Press.

* * - Arbitrage international (France, ODA 2019)

Marie was awarded the 'Leading Commercial & Investment Arbitrator of the Year 2019' for Acquisition International Magazine - France.

“She is "diligent and impressive in terms of her knowledge of the subject and of the proceedings." CHAMBERS GLOBAL 2018, DISPUTE RESOLUTION: INTERNATIONAL ARBITRATION — FRANCE

'Next Generation Lawyer' LEGAL 500 FRANCE 2017 (DISPUTE RESOLUTION / INTERNATIONAL ARBITRATION)

Marie was awarded the “Star of Tomorrow” distinction for International Arbitration by French newspaper Les Echos, Marie is described by Chambers & Partners as having “particular focus on investment treaty and related disputes”, in which context she is “very sharp in understanding and reaching the crux of even the most complicated issues” (Dispute Resolution: International Arbitration, France 2017).

"Marie Stoyanov is 'very sharp in understanding and reaching the crux of even the most complicated issues'." Chambers and Partners, dispute resolution: international arbitration — France 2017

"Marie Stoyanov is described as 'an outstanding, talented lawyer'." Chambers and Partners, dispute resolution: international arbitration — France 2016

News & insights

Publications: 11 NOVEMBER 2019

Understanding CETA

An introduction to the EU-Canada Comprehensive Economic and Trade Agreement (CETA).

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Publications: 01 JULY 2019

The General Court comes to Miculas’ aid

In a decision rendered on 18 June 2019 (joint Cases T 624/15, T 694/15 and T 704/15), the General Court of the European Union (the Court) annulled the European Commission’s (the EC) decision 2015/1570 of 30 March 2015 on State aid SA.38517 (2014/C) (ex 2014/NN) (the EC Decision) that precluded Romania from complying with an award rendered by the International Centre for Settlement of Investment Disputes (ICSID) in favour of Swedish investors Ioan Micula and Viorel Micula and a number of corporate entities they control (the Court's Decision). 

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Publications: 18 SEPTEMBER 2018

Jurisdictional objections based on CJEU's Achmea judgment fail in Energy Charter Treaty arbitration

ICSID tribunal retains jurisdiction, rejecting Germany and European Commission’s arguments that intra-EU arbitration under ECT incompatible with EU law

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Publications: 25 JULY 2018

Government of Ontario terminates renewable energy contracts

On 5 July 2018, Ontario's Minister of Energy, Greg Rickford, issued an Executive Order to the Independent Electricity System Operator (IESO) directing it to "wind down" certain renewable energy contracts, which had been awarded under the Feed-in-Tariff (FIT) and the Large Renewable Procurement (LRP) programmes.

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Office

Paris

Allen & Overy LLP
52 avenue Hoche
75008 Paris

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Qualifications

Academic

PGD, International Arbitration, Queen Mary University of London, 2003

ESSEC Business School, 1997


Published work

Sentence Micula : un tribunal condamne la Roumanie à payer 250 millions de dollars, LesEchos.fr, April 2014, written with Sebastiano Nessi

Enjeux et portée de la sentence Micula, Capital Finance, March 2014, written with Sebastiano Nessi

Interview - « Dès qu’un pays devient exportateur de capitaux, il est enclin à se porter vers l’arbitrage », Capital Finance, n° 1125, october 2013

Third-Party Funding in International Arbitration : Is it time for Some Soft Rules?, International Arbitration Review, June 2015, written with Olga Owczarek

Multiparty Proceedings and Mass Claims, The Investment Treaty Arbitration Review, April 2016, written with Jeffrey Sullivan and Lucia Raimanova

Procedural interplay between investment arbitration and criminal proceedings in the context of corruption allegations, b-Arbitra, 2018, written with Werner Eyskens, Valentin Bourgeois and Michaël Fernandez-Bertier