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Zannis Mavrogordato

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Clerks' direct contact:
+44 (0)20 7842 1200
Clerks [at] 20essexst [dot] com

Zannis has been in practice at 20 Essex Street since May 2013. He is a specialist in international commercial and investment arbitration. He is dual qualified as an English barrister and French avocat and has conducted international arbitration proceedings in English and French on behalf of governments and multinational corporations in the construction, energy, mining, finance and telecommunications sectors. Zannis has lived and worked in London, Paris and Bucharest. He has a particular focus on disputes with a connection to CEE and CIS. He also sits as an arbitrator.

Specialisations: 

  • International commercial arbitration
  • International investment arbitration
  • Construction
  • Oil & Gas
  • Mining
  • Joint Ventures
  • State Representation
  • Investor-State Contracts
  • Investment Treaty Protection Planning
  • Mediation

Principal Cases: 

International Arbitration

Lead Counsel to a Swiss company (Bulgarian/Georgian owned) against a Swiss multinational, Swiss arbitration (seat Zurich, Swiss governing law), mining sector, value US$100m

Lead Counsel to a Swiss company (Bulgarian/Georgian owned) against a Swiss multinational, ICC arbitration (seat Zurich, Swiss governing law), mining sector, value US$350m

Counsel to a US company against a Caribbean Government, ICC arbitration (seat Toronto, Trinidad governing law), oil & gas sector, value US$100m

Counsel to a US company against a Caribbean Government, LCIA arbitration (seat Bermuda, Trinidad governing law), oil & gas sector, value US$220m

Counsel to an Israeli chemicals company against a US gas company, LCIA arbitration (seat London, Israeli governing law), oil & gas sector, value US$100m

Lead Counsel to an English company against Romanian companies, ICC arbitration (seat Vienna, English governing law), construction sector, value US$20m

Sole Arbitrator in an ICC arbitration (seat Paris, Romanian governing law, French language), construction sector, Romanian individuals against a French company

Lead Counsel to a German company against the Romanian State, ICC arbitration, construction sector (FIDIC), value US$5m

Counsel to the Government of Romania in relation to a BIT claim brought by a Greek investor, ICSID arbitration, food retail sector, value US$150m

Counsel to Swedish investors in relation to a BIT claim against the Bulgarian State, ICSID arbitration, arising out of the termination of a waste management concession, value US$ 75 million

Lead Counsel to a US company in relation to an ECHR and BIT claim against the Moldovan State, ICSID arbitration, telecommunications sector, value US$30m

Lead Counsel to a US NGO in relation to a BIT claim against the Government of Vietnam, ICSID arbitration, threatened expropriation of an animal sanctuary

Counsel to a major French bank in the context of lengthy pre-arbitration negotiations against the Government of Montenegro in the context of a dispute arising out of the privatization of an aluminium plant

Counsel to a major French bank in connection with a US$ 300 million ICC arbitration (seat London, Swiss governing law) against a Russian billionaire arising out of a SPA to purchase a 50% interest in a Russian bank. This case involved seeking and obtaining Freezing Orders and Anti-Suit Injunctions in London, Bermuda and the British Virgin Islands, and defending parallel proceedings commenced by the billionaire in Russia

Counsel to a Turkish billionaire in a US$ 2.2 billion dispute against Motorola, involving proceedings and Freezing Orders applications in the UK (Court of Appeal and petition to the House of Lords), Switzerland (ICC arbitration, seat Zurich, Swiss governing law), Bermuda, Guernsey, Jersey, Isle of Man, France, Germany, Turkey and the US

Counsel to a major French insurance company in connection with a US$ 100 million ICC arbitration (seat Geneva, English governing law) against a Russian billionaire arising out of a joint venture agreement in the Russian insurance sector

Counsel to a Russian billionaire in a US$100 million LCIA arbitration (seat London, English governing law) against another Russian billionaire arising out of a non-performed SPA

Counsel to a pool of French, English and US insurers in the context of a US$ 300 million ICC arbitration (seat Paris, UAE governing law) against a US aerospace manufacturer arising out of the construction of a satellite

Counsel to a Japanese car manufacturer in the context of a US$ 75 million JCAA arbitration (seat Tokyo, Japanese governing law) arising out of an exclusive distributorship agreement

Counsel to a Swiss multinational in the context of a US$ 15 million CICA arbitration arising out of an exclusive distributorship agreement in the food sector (seat Bucharest, Romanian governing law)

Counsel to a consortium of investors in the context of preparing multi-billion dollar SCC arbitration proceedings, and potential BIT / ECT arbitration proceedings, against the Ukrainian Government arising out of a gas product sharing agreement

Counsel to a Finnish energy company in the context of a US$ 30 million ICC arbitration (seat Paris, Romanian governing law) against two Romanian State-owned energy companies arising out of the construction of a power plant in Romania

Counsel to a Turkish construction company in the context of a €100 million ICC arbitration (seat Geneva, Ukrainian governing law) against a Ukrainian State-owned railway company regarding the construction of a bridge over the river Dnieper

 

Education and Career: 

BA and MA in Law, St. John's College, Cambridge (1998)

Called to the Paris Bar (2007)

Publications: 

CMS Guide to Arbitration, Hard-Back Edition 2009

The Nature and Enforceability of ICSID Provisional Measures, Journal of the Chartered Institute of Arbitrators, February 2009

Anti-Suit Injunctions and Arbitration Proceedings, Journal of the Chartered Institute of Arbitrators, August 2006

Can Documents Disclosed in the Course of Arbitration Proceedings be Used in Other Related Proceedings, International Business Law Journal, December 2006

Deep Freeze, Solicitors Journal 2004 (discussion of Freezing Orders)

Is the Compensatory Element of a Foreign Multiple Damages Judgment Enforceable in the UK, New Law Journal 2004

Appointments and Society Memberships: 

  • MCIArb
  • Of Counsel, MKD Law Firm, Tbilisi, Georgia

Lectures and Teaching: 

  • Frequent lectures on international commercial and investment arbitration
  • Visiting Lecturer at Taylor's University, Kuala Lumpur